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Merge compiler-rt trunk r366426, resolve conflicts, and add

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FREEBSD-Xlist.
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# $FreeBSD$
.arcconfig
.gitignore
CMakeLists.txt
CODE_OWNERS.TXT
cmake/
docs/
include/CMakeLists.txt
lib/CMakeLists.txt
lib/asan/.clang-format
lib/asan/CMakeLists.txt
lib/asan/scripts/
lib/asan/tests/
lib/builtins/CMakeLists.txt
lib/builtins/Darwin-excludes/
lib/builtins/macho_embedded/
lib/cfi/CMakeLists.txt
lib/crt/CMakeLists.txt
lib/dfsan/.clang-format
lib/dfsan/CMakeLists.txt
lib/dfsan/scripts/
lib/esan/CMakeLists.txt
lib/fuzzer/CMakeLists.txt
lib/fuzzer/afl/
lib/fuzzer/build.sh
lib/fuzzer/dataflow/
lib/fuzzer/scripts/
lib/fuzzer/standalone/
lib/fuzzer/tests/
lib/gwp_asan/CMakeLists.txt
lib/gwp_asan/tests/
lib/hwasan/.clang-format
lib/hwasan/CMakeLists.txt
lib/interception/.clang-format
lib/interception/CMakeLists.txt
lib/interception/tests/
lib/lsan/.clang-format
lib/lsan/CMakeLists.txt
lib/msan/.clang-format
lib/msan/CMakeLists.txt
lib/msan/tests/
lib/profile/CMakeLists.txt
lib/safestack/.clang-format
lib/safestack/CMakeLists.txt
lib/sanitizer_common/.clang-format
lib/sanitizer_common/.clang-tidy
lib/sanitizer_common/CMakeLists.txt
lib/sanitizer_common/scripts/
lib/sanitizer_common/tests/
lib/scudo/CMakeLists.txt
lib/scudo/standalone/CMakeLists.txt
lib/scudo/standalone/tests/
lib/stats/CMakeLists.txt
lib/tsan/.clang-format
lib/tsan/CMakeLists.txt
lib/tsan/analyze_libtsan.sh
lib/tsan/check_analyze.sh
lib/tsan/check_cmake.sh
lib/tsan/dd/CMakeLists.txt
lib/tsan/go/build.bat
lib/tsan/go/buildgo.sh
lib/tsan/tests/
lib/ubsan/CMakeLists.txt
lib/ubsan_minimal/CMakeLists.txt
lib/xray/CMakeLists.txt
lib/xray/tests/
make/
test/
unittests/
utils/
www/

252
contrib/compiler-rt/LICENSE.TXT
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@ -1,5 +1,240 @@
==============================================================================
compiler_rt License
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==============================================================================
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==============================================================================
Software from third parties included in the LLVM Project:
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which apply to that software, or
2) It will contain specific license and restriction terms at the top of every
file.
==============================================================================
Legacy LLVM License (https://llvm.org/docs/DeveloperPolicy.html#legacy):
==============================================================================
The compiler_rt library is dual licensed under both the University of Illinois
@ -74,18 +309,3 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
==============================================================================
Copyrights and Licenses for Third Party Software Distributed with LLVM:
==============================================================================
The LLVM software contains code written by third parties. Such software will
have its own individual LICENSE.TXT file in the directory in which it appears.
This file will describe the copyrights, license, and restrictions which apply
to that code.
The disclaimer of warranty in the University of Illinois Open Source License
applies to all code in the LLVM Distribution, and nothing in any of the
other licenses gives permission to use the names of the LLVM Team or the
University of Illinois to endorse or promote products derived from this
Software.

7
contrib/compiler-rt/include/sanitizer/allocator_interface.h
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@ -1,9 +1,8 @@
//===-- allocator_interface.h ---------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

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contrib/compiler-rt/include/sanitizer/asan_interface.h
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@ -1,13 +1,12 @@
//===-- sanitizer/asan_interface.h ------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file is a part of AddressSanitizer.
// This file is a part of AddressSanitizer (ASan).
//
// Public interface header.
//===----------------------------------------------------------------------===//
@ -19,28 +18,54 @@
#ifdef __cplusplus
extern "C" {
#endif
// Marks memory region [addr, addr+size) as unaddressable.
// This memory must be previously allocated by the user program. Accessing
// addresses in this region from instrumented code is forbidden until
// this region is unpoisoned. This function is not guaranteed to poison
// the whole region - it may poison only subregion of [addr, addr+size) due
// to ASan alignment restrictions.
// Method is NOT thread-safe in the sense that no two threads can
// (un)poison memory in the same memory region simultaneously.
void __asan_poison_memory_region(void const volatile *addr, size_t size);
// Marks memory region [addr, addr+size) as addressable.
// This memory must be previously allocated by the user program. Accessing
// addresses in this region is allowed until this region is poisoned again.
// This function may unpoison a superregion of [addr, addr+size) due to
// ASan alignment restrictions.
// Method is NOT thread-safe in the sense that no two threads can
// (un)poison memory in the same memory region simultaneously.
void __asan_unpoison_memory_region(void const volatile *addr, size_t size);
/// Marks a memory region (<c>[addr, addr+size)</c>) as unaddressable.
///
/// This memory must be previously allocated by your program. Instrumented
/// code is forbidden from accessing addresses in this region until it is
/// unpoisoned. This function is not guaranteed to poison the entire region -
/// it could poison only a subregion of <c>[addr, addr+size)</c> due to ASan
/// alignment restrictions.
///
/// \note This function is not thread-safe because no two threads can poison or
/// unpoison memory in the same memory region simultaneously.
///
/// \param addr Start of memory region.
/// \param size Size of memory region.
void __asan_poison_memory_region(void const volatile *addr, size_t size);
// User code should use macros instead of functions.
/// Marks a memory region (<c>[addr, addr+size)</c>) as addressable.
///
/// This memory must be previously allocated by your program. Accessing
/// addresses in this region is allowed until this region is poisoned again.
/// This function could unpoison a super-region of <c>[addr, addr+size)</c> due
/// to ASan alignment restrictions.
///
/// \note This function is not thread-safe because no two threads can
/// poison or unpoison memory in the same memory region simultaneously.
///
/// \param addr Start of memory region.
/// \param size Size of memory region.
void __asan_unpoison_memory_region(void const volatile *addr, size_t size);
// Macros provided for convenience.
#if __has_feature(address_sanitizer) || defined(__SANITIZE_ADDRESS__)
/// Marks a memory region as unaddressable.
///
/// \note Macro provided for convenience; defined as a no-op if ASan is not
/// enabled.
///
/// \param addr Start of memory region.
/// \param size Size of memory region.
#define ASAN_POISON_MEMORY_REGION(addr, size) \
__asan_poison_memory_region((addr), (size))
/// Marks a memory region as addressable.
///
/// \note Macro provided for convenience; defined as a no-op if ASan is not
/// enabled.
///
/// \param addr Start of memory region.
/// \param size Size of memory region.
#define ASAN_UNPOISON_MEMORY_REGION(addr, size) \
__asan_unpoison_memory_region((addr), (size))
#else
@ -50,103 +75,245 @@ extern "C" {
((void)(addr), (void)(size))
#endif
// Returns 1 if addr is poisoned (i.e. 1-byte read/write access to this
// address will result in error report from AddressSanitizer).
// Otherwise returns 0.
int __asan_address_is_poisoned(void const volatile *addr);
/// Checks if an address is poisoned.
///
/// Returns 1 if <c><i>addr</i></c> is poisoned (that is, 1-byte read/write
/// access to this address would result in an error report from ASan).
/// Otherwise returns 0.
///
/// \param addr Address to check.
///
/// \retval 1 Address is poisoned.
/// \retval 0 Address is not poisoned.
int __asan_address_is_poisoned(void const volatile *addr);
// If at least one byte in [beg, beg+size) is poisoned, return the address
// of the first such byte. Otherwise return 0.
void *__asan_region_is_poisoned(void *beg, size_t size);
/// Checks if a region is poisoned.
///
/// If at least one byte in <c>[beg, beg+size)</c> is poisoned, returns the
/// address of the first such byte. Otherwise returns 0.
///
/// \param beg Start of memory region.
/// \param size Start of memory region.
/// \returns Address of first poisoned byte.
void *__asan_region_is_poisoned(void *beg, size_t size);
// Print the description of addr (useful when debugging in gdb).
void __asan_describe_address(void *addr);
/// Describes an address (useful for calling from the debugger).
///
/// Prints the description of <c><i>addr</i></c>.
///
/// \param addr Address to describe.
void __asan_describe_address(void *addr);
// Useful for calling from a debugger to get information about an ASan error.
// Returns 1 if an error has been (or is being) reported, otherwise returns 0.
int __asan_report_present(void);
/// Checks if an error has been or is being reported (useful for calling from
/// the debugger to get information about an ASan error).
///
/// Returns 1 if an error has been (or is being) reported. Otherwise returns 0.
///
/// \returns 1 if an error has been (or is being) reported. Otherwise returns
/// 0.
int __asan_report_present(void);
// Useful for calling from a debugger to get information about an ASan error.
// If an error has been (or is being) reported, the following functions return
// the pc, bp, sp, address, access type (0 = read, 1 = write), access size and
// bug description (e.g. "heap-use-after-free"). Otherwise they return 0.
void *__asan_get_report_pc(void);
void *__asan_get_report_bp(void);
void *__asan_get_report_sp(void);
void *__asan_get_report_address(void);
int __asan_get_report_access_type(void);
size_t __asan_get_report_access_size(void);
const char *__asan_get_report_description(void);
/// Gets the PC (program counter) register value of an ASan error (useful for
/// calling from the debugger).
///
/// Returns PC if an error has been (or is being) reported.
/// Otherwise returns 0.
///
/// \returns PC value.
void *__asan_get_report_pc(void);
// Useful for calling from the debugger to get information about a pointer.
// Returns the category of the given pointer as a constant string.
// Possible return values are "global", "stack", "stack-fake", "heap",
// "heap-invalid", "shadow-low", "shadow-gap", "shadow-high", "unknown".
// If global or stack, tries to also return the variable name, address and
// size. If heap, tries to return the chunk address and size. 'name' should
// point to an allocated buffer of size 'name_size'.
const char *__asan_locate_address(void *addr, char *name, size_t name_size,
void **region_address, size_t *region_size);
/// Gets the BP (base pointer) register value of an ASan error (useful for
/// calling from the debugger).
///
/// Returns BP if an error has been (or is being) reported.
/// Otherwise returns 0.
///
/// \returns BP value.
void *__asan_get_report_bp(void);
// Useful for calling from the debugger to get the allocation stack trace
// and thread ID for a heap address. Stores up to 'size' frames into 'trace',
// returns the number of stored frames or 0 on error.
size_t __asan_get_alloc_stack(void *addr, void **trace, size_t size,
int *thread_id);
/// Gets the SP (stack pointer) register value of an ASan error (useful for
/// calling from the debugger).
///
/// If an error has been (or is being) reported, returns SP.
/// Otherwise returns 0.
///
/// \returns SP value.
void *__asan_get_report_sp(void);
// Useful for calling from the debugger to get the free stack trace
// and thread ID for a heap address. Stores up to 'size' frames into 'trace',
// returns the number of stored frames or 0 on error.
size_t __asan_get_free_stack(void *addr, void **trace, size_t size,
int *thread_id);
/// Gets the address of the report buffer of an ASan error (useful for calling
/// from the debugger).
///
/// Returns the address of the report buffer if an error has been (or is being)
/// reported. Otherwise returns 0.
///
/// \returns Address of report buffer.
void *__asan_get_report_address(void);
// Useful for calling from the debugger to get the current shadow memory
// mapping.
void __asan_get_shadow_mapping(size_t *shadow_scale, size_t *shadow_offset);
/// Gets access type of an ASan error (useful for calling from the debugger).
///
/// Returns access type (read or write) if an error has been (or is being)
/// reported. Otherwise returns 0.
///
/// \returns Access type (0 = read, 1 = write).
int __asan_get_report_access_type(void);
// This is an internal function that is called to report an error.
// However it is still a part of the interface because users may want to
// set a breakpoint on this function in a debugger.
void __asan_report_error(void *pc, void *bp, void *sp,
void *addr, int is_write, size_t access_size);
/// Gets access size of an ASan error (useful for calling from the debugger).
///
/// Returns access size if an error has been (or is being) reported. Otherwise
/// returns 0.
///
/// \returns Access size in bytes.
size_t __asan_get_report_access_size(void);
// Deprecated. Call __sanitizer_set_death_callback instead.
void __asan_set_death_callback(void (*callback)(void));
/// Gets the bug description of an ASan error (useful for calling from a
/// debugger).
///
/// \returns Returns a bug description if an error has been (or is being)
/// reported - for example, "heap-use-after-free". Otherwise returns an empty
/// string.
const char *__asan_get_report_description(void);
void __asan_set_error_report_callback(void (*callback)(const char*));
/// Gets information about a pointer (useful for calling from the debugger).
///
/// Returns the category of the given pointer as a constant string.
/// Possible return values are <c>global</c>, <c>stack</c>, <c>stack-fake</c>,
/// <c>heap</c>, <c>heap-invalid</c>, <c>shadow-low</c>, <c>shadow-gap</c>,
/// <c>shadow-high</c>, and <c>unknown</c>.
///
/// If the return value is <c>global</c> or <c>stack</c>, tries to also return
/// the variable name, address, and size. If the return value is <c>heap</c>,
/// tries to return the chunk address and size. <c><i>name</i></c> should point
/// to an allocated buffer of size <c><i>name_size</i></c>.
///
/// \param addr Address to locate.
/// \param name Buffer to store the variable's name.
/// \param name_size Size in bytes of the variable's name buffer.
/// \param region_address [out] Address of the region.
/// \param region_size [out] Size of the region in bytes.
///
/// \returns Returns the category of the given pointer as a constant string.
const char *__asan_locate_address(void *addr, char *name, size_t name_size,
void **region_address, size_t *region_size);
// User may provide function that would be called right when ASan detects
// an error. This can be used to notice cases when ASan detects an error, but
// the program crashes before ASan report is printed.
void __asan_on_error(void);
/// Gets the allocation stack trace and thread ID for a heap address (useful
/// for calling from the debugger).
///
/// Stores up to <c><i>size</i></c> frames in <c><i>trace</i></c>. Returns
/// the number of stored frames or 0 on error.
///
/// \param addr A heap address.
/// \param trace A buffer to store the stack trace.
/// \param size Size in bytes of the trace buffer.
/// \param thread_id [out] The thread ID of the address.
///
/// \returns Returns the number of stored frames or 0 on error.
size_t __asan_get_alloc_stack(void *addr, void **trace, size_t size,
int *thread_id);
// Prints accumulated stats to stderr. Used for debugging.
void __asan_print_accumulated_stats(void);
/// Gets the free stack trace and thread ID for a heap address (useful for
/// calling from the debugger).
///
/// Stores up to <c><i>size</i></c> frames in <c><i>trace</i></c>. Returns
/// the number of stored frames or 0 on error.
///
/// \param addr A heap address.
/// \param trace A buffer to store the stack trace.
/// \param size Size in bytes of the trace buffer.
/// \param thread_id [out] The thread ID of the address.
///
/// \returns Returns the number of stored frames or 0 on error.
size_t __asan_get_free_stack(void *addr, void **trace, size_t size,
int *thread_id);
// This function may be optionally provided by user and should return
// a string containing ASan runtime options. See asan_flags.h for details.
const char* __asan_default_options(void);
/// Gets the current shadow memory mapping (useful for calling from the
/// debugger).
///
/// \param shadow_scale [out] Shadow scale value.
/// \param shadow_offset [out] Offset value.
void __asan_get_shadow_mapping(size_t *shadow_scale, size_t *shadow_offset);
// The following 2 functions facilitate garbage collection in presence of
// asan's fake stack.
/// This is an internal function that is called to report an error. However,
/// it is still a part of the interface because you might want to set a
/// breakpoint on this function in the debugger.
///
/// \param pc <c><i>pc</i></c> value of the ASan error.
/// \param bp <c><i>bp</i></c> value of the ASan error.
/// \param sp <c><i>sp</i></c> value of the ASan error.
/// \param addr Address of the ASan error.
/// \param is_write True if the error is a write error; false otherwise.
/// \param access_size Size of the memory access of the ASan error.
void __asan_report_error(void *pc, void *bp, void *sp,
void *addr, int is_write, size_t access_size);
// Returns an opaque handler to be used later in __asan_addr_is_in_fake_stack.
// Returns NULL if the current thread does not have a fake stack.
void *__asan_get_current_fake_stack(void);
// Deprecated. Call __sanitizer_set_death_callback instead.
void __asan_set_death_callback(void (*callback)(void));
// If fake_stack is non-NULL and addr belongs to a fake frame in
// fake_stack, returns the address on real stack that corresponds to
// the fake frame and sets beg/end to the boundaries of this fake frame.
// Otherwise returns NULL and does not touch beg/end.
// If beg/end are NULL, they are not touched.
// This function may be called from a thread other than the owner of
// fake_stack, but the owner thread need to be alive.
void *__asan_addr_is_in_fake_stack(void *fake_stack, void *addr, void **beg,
void **end);
/// Sets the callback function to be called during ASan error reporting.
///
/// The callback provides a string pointer to the report.
///
/// \param callback User-provided function.
void __asan_set_error_report_callback(void (*callback)(const char *));
// Performs cleanup before a [[noreturn]] function. Must be called
// before things like _exit and execl to avoid false positives on stack.
void __asan_handle_no_return(void);
/// User-provided callback on ASan errors.
///
/// You can provide a function that would be called immediately when ASan
/// detects an error. This is useful in cases when ASan detects an error but
/// your program crashes before the ASan report is printed.
void __asan_on_error(void);
/// Prints accumulated statistics to <c>stderr</c> (useful for calling from the
/// debugger).
void __asan_print_accumulated_stats(void);
/// User-provided default option settings.
///
/// You can provide your own implementation of this function to return a string
/// containing ASan runtime options (for example,
/// <c>verbosity=1:halt_on_error=0</c>).
///
/// \returns Default options string.
const char* __asan_default_options(void);
// The following two functions facilitate garbage collection in presence of
// ASan's fake stack.
/// Gets an opaque handler to the current thread's fake stack.
///
/// Returns an opaque handler to be used by
/// <c>__asan_addr_is_in_fake_stack()</c>. Returns NULL if the current thread
/// does not have a fake stack.
///
/// \returns An opaque handler to the fake stack or NULL.
void *__asan_get_current_fake_stack(void);
/// Checks if an address belongs to a given fake stack.
///
/// If <c><i>fake_stack</i></c> is non-NULL and <c><i>addr</i></c> belongs to a
/// fake frame in <c><i>fake_stack</i></c>, returns the address of the real
/// stack that corresponds to the fake frame and sets <c><i>beg</i></c> and
/// <c><i>end</i></c> to the boundaries of this fake frame. Otherwise returns
/// NULL and does not touch <c><i>beg</i></c> and <c><i>end</i></c>.
///
/// If <c><i>beg</i></c> or <c><i>end</i></c> are NULL, they are not touched.
///
/// \note This function can be called from a thread other than the owner of
/// <c><i>fake_stack</i></c>, but the owner thread needs to be alive.
///
/// \param fake_stack An opaque handler to a fake stack.
/// \param addr Address to test.
/// \param beg [out] Beginning of fake frame.
/// \param end [out] End of fake frame.
/// \returns Stack address or NULL.
void *__asan_addr_is_in_fake_stack(void *fake_stack, void *addr, void **beg,
void **end);
/// Performs shadow memory cleanup of the current thread's stack before a
/// function marked with the <c>[[noreturn]]</c> attribute is called.
///
/// To avoid false positives on the stack, must be called before no-return
/// functions like <c>_exit()</c> and <c>execl()</c>.
void __asan_handle_no_return(void);
#ifdef __cplusplus
} // extern "C"

481
contrib/compiler-rt/include/sanitizer/common_interface_defs.h
View File

@ -1,9 +1,8 @@
//===-- sanitizer/common_interface_defs.h -----------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -18,189 +17,335 @@
// GCC does not understand __has_feature.
#if !defined(__has_feature)
# define __has_feature(x) 0
#define __has_feature(x) 0
#endif
#ifdef __cplusplus
extern "C" {
#endif
// Arguments for __sanitizer_sandbox_on_notify() below.
typedef struct {
// Enable sandbox support in sanitizer coverage.
int coverage_sandboxed;
// File descriptor to write coverage data to. If -1 is passed, a file will
// be pre-opened by __sanitizer_sandobx_on_notify(). This field has no
// effect if coverage_sandboxed == 0.
intptr_t coverage_fd;
// If non-zero, split the coverage data into well-formed blocks. This is
// useful when coverage_fd is a socket descriptor. Each block will contain
// a header, allowing data from multiple processes to be sent over the same
// socket.
unsigned int coverage_max_block_size;
} __sanitizer_sandbox_arguments;
// Arguments for __sanitizer_sandbox_on_notify() below.
typedef struct {
// Enable sandbox support in sanitizer coverage.
int coverage_sandboxed;
// File descriptor to write coverage data to. If -1 is passed, a file will
// be pre-opened by __sanitizer_sandobx_on_notify(). This field has no
// effect if coverage_sandboxed == 0.
intptr_t coverage_fd;
// If non-zero, split the coverage data into well-formed blocks. This is
// useful when coverage_fd is a socket descriptor. Each block will contain
// a header, allowing data from multiple processes to be sent over the same
// socket.
unsigned int coverage_max_block_size;
} __sanitizer_sandbox_arguments;
// Tell the tools to write their reports to "path.<pid>" instead of stderr.
void __sanitizer_set_report_path(const char *path);
// Tell the tools to write their reports to the provided file descriptor
// (casted to void *).
void __sanitizer_set_report_fd(void *fd);
// Tell the tools to write their reports to "path.<pid>" instead of stderr.
void __sanitizer_set_report_path(const char *path);
// Tell the tools to write their reports to the provided file descriptor
// (casted to void *).
void __sanitizer_set_report_fd(void *fd);
// Notify the tools that the sandbox is going to be turned on. The reserved
// parameter will be used in the future to hold a structure with functions
// that the tools may call to bypass the sandbox.
void __sanitizer_sandbox_on_notify(__sanitizer_sandbox_arguments *args);
// Notify the tools that the sandbox is going to be turned on. The reserved
// parameter will be used in the future to hold a structure with functions
// that the tools may call to bypass the sandbox.
void __sanitizer_sandbox_on_notify(__sanitizer_sandbox_arguments *args);
// This function is called by the tool when it has just finished reporting
// an error. 'error_summary' is a one-line string that summarizes
// the error message. This function can be overridden by the client.
void __sanitizer_report_error_summary(const char *error_summary);
// This function is called by the tool when it has just finished reporting
// an error. 'error_summary' is a one-line string that summarizes
// the error message. This function can be overridden by the client.
void __sanitizer_report_error_summary(const char *error_summary);
// Some of the sanitizers (e.g. asan/tsan) may miss bugs that happen
// in unaligned loads/stores. In order to find such bugs reliably one needs
// to replace plain unaligned loads/stores with these calls.
uint16_t __sanitizer_unaligned_load16(const void *p);
uint32_t __sanitizer_unaligned_load32(const void *p);
uint64_t __sanitizer_unaligned_load64(const void *p);
void __sanitizer_unaligned_store16(void *p, uint16_t x);
void __sanitizer_unaligned_store32(void *p, uint32_t x);
void __sanitizer_unaligned_store64(void *p, uint64_t x);
// Some of the sanitizers (for example ASan/TSan) could miss bugs that happen
// in unaligned loads/stores. To find such bugs reliably, you need to replace
// plain unaligned loads/stores with these calls.
// Returns 1 on the first call, then returns 0 thereafter. Called by the tool
// to ensure only one report is printed when multiple errors occur
// simultaneously.
int __sanitizer_acquire_crash_state();
/// Loads a 16-bit unaligned value.
///
/// \param p Pointer to unaligned memory.
///
/// \returns Loaded value.
uint16_t __sanitizer_unaligned_load16(const void *p);
// Annotate the current state of a contiguous container, such as
// std::vector, std::string or similar.
// A contiguous container is a container that keeps all of its elements
// in a contiguous region of memory. The container owns the region of memory
// [beg, end); the memory [beg, mid) is used to store the current elements
// and the memory [mid, end) is reserved for future elements;
// beg <= mid <= end. For example, in "std::vector<> v"
// beg = &v[0];
// end = beg + v.capacity() * sizeof(v[0]);
// mid = beg + v.size() * sizeof(v[0]);
//
// This annotation tells the Sanitizer tool about the current state of the
// container so that the tool can report errors when memory from [mid, end)
// is accessed. Insert this annotation into methods like push_back/pop_back.
// Supply the old and the new values of mid (old_mid/new_mid).
// In the initial state mid == end and so should be the final
// state when the container is destroyed or when it reallocates the storage.
//
// Use with caution and don't use for anything other than vector-like classes.
//
// For AddressSanitizer, 'beg' should be 8-aligned and 'end' should
// be either 8-aligned or it should point to the end of a separate heap-,
// stack-, or global- allocated buffer. I.e. the following will not work:
// int64_t x[2]; // 16 bytes, 8-aligned.
// char *beg = (char *)&x[0];
// char *end = beg + 12; // Not 8 aligned, not the end of the buffer.
// This however will work fine:
// int32_t x[3]; // 12 bytes, but 8-aligned under AddressSanitizer.
// char *beg = (char*)&x[0];
// char *end = beg + 12; // Not 8-aligned, but is the end of the buffer.
void __sanitizer_annotate_contiguous_container(const void *beg,
const void *end,
const void *old_mid,
const void *new_mid);
// Returns true if the contiguous container [beg, end) is properly poisoned
// (e.g. with __sanitizer_annotate_contiguous_container), i.e. if
// - [beg, mid) is addressable,
// - [mid, end) is unaddressable.
// Full verification requires O(end-beg) time; this function tries to avoid
// such complexity by touching only parts of the container around beg/mid/end.
int __sanitizer_verify_contiguous_container(const void *beg, const void *mid,
const void *end);
/// Loads a 32-bit unaligned value.
///
/// \param p Pointer to unaligned memory.
///
/// \returns Loaded value.
uint32_t __sanitizer_unaligned_load32(const void *p);
// Similar to __sanitizer_verify_contiguous_container but returns the address
// of the first improperly poisoned byte otherwise. Returns null if the area
// is poisoned properly.
const void *__sanitizer_contiguous_container_find_bad_address(
const void *beg, const void *mid, const void *end);
/// Loads a 64-bit unaligned value.
///
/// \param p Pointer to unaligned memory.
///
/// \returns Loaded value.
uint64_t __sanitizer_unaligned_load64(const void *p);
// Print the stack trace leading to this call. Useful for debugging user code.
void __sanitizer_print_stack_trace(void);
/// Stores a 16-bit unaligned value.
///
/// \param p Pointer to unaligned memory.
/// \param x 16-bit value to store.
void __sanitizer_unaligned_store16(void *p, uint16_t x);
// Symbolizes the supplied 'pc' using the format string 'fmt'.
// Outputs at most 'out_buf_size' bytes into 'out_buf'.
// If 'out_buf' is not empty then output is zero or more non empty C strings
// followed by single empty C string. Multiple strings can be returned if PC
// corresponds to inlined function. Inlined frames are printed in the order
// from "most-inlined" to the "least-inlined", so the last frame should be the
// not inlined function.
// Inlined frames can be removed with 'symbolize_inline_frames=0'.
// The format syntax is described in
// lib/sanitizer_common/sanitizer_stacktrace_printer.h.
void __sanitizer_symbolize_pc(void *pc, const char *fmt, char *out_buf,
size_t out_buf_size);
// Same as __sanitizer_symbolize_pc, but for data section (i.e. globals).
void __sanitizer_symbolize_global(void *data_ptr, const char *fmt,
char *out_buf, size_t out_buf_size);
/// Stores a 32-bit unaligned value.
///
/// \param p Pointer to unaligned memory.
/// \param x 32-bit value to store.
void __sanitizer_unaligned_store32(void *p, uint32_t x);
// Sets the callback to be called right before death on error.
// Passing 0 will unset the callback.
void __sanitizer_set_death_callback(void (*callback)(void));
/// Stores a 64-bit unaligned value.
///
/// \param p Pointer to unaligned memory.
/// \param x 64-bit value to store.
void __sanitizer_unaligned_store64(void *p, uint64_t x);
// Interceptor hooks.
// Whenever a libc function interceptor is called it checks if the
// corresponding weak hook is defined, and it so -- calls it.
// The primary use case is data-flow-guided fuzzing, where the fuzzer needs
// to know what is being passed to libc functions, e.g. memcmp.
// FIXME: implement more hooks.
void __sanitizer_weak_hook_memcmp(void *called_pc, const void *s1,
const void *s2, size_t n, int result);
void __sanitizer_weak_hook_strncmp(void *called_pc, const char *s1,
const char *s2, size_t n, int result);
void __sanitizer_weak_hook_strncasecmp(void *called_pc, const char *s1,
const char *s2, size_t n, int result);
void __sanitizer_weak_hook_strcmp(void *called_pc, const char *s1,
const char *s2, int result);
void __sanitizer_weak_hook_strcasecmp(void *called_pc, const char *s1,
const char *s2, int result);
void __sanitizer_weak_hook_strstr(void *called_pc, const char *s1,
const char *s2, char *result);
void __sanitizer_weak_hook_strcasestr(void *called_pc, const char *s1,
const char *s2, char *result);
void __sanitizer_weak_hook_memmem(void *called_pc,
const void *s1, size_t len1,
const void *s2, size_t len2, void *result);
// Returns 1 on the first call, then returns 0 thereafter. Called by the tool
// to ensure only one report is printed when multiple errors occur
// simultaneously.
int __sanitizer_acquire_crash_state();
// Prints stack traces for all live heap allocations ordered by total
// allocation size until `top_percent` of total live heap is shown.
// `top_percent` should be between 1 and 100.
// At most `max_number_of_contexts` contexts (stack traces) is printed.
// Experimental feature currently available only with asan on Linux/x86_64.
void __sanitizer_print_memory_profile(size_t top_percent,
size_t max_number_of_contexts);
/// Annotates the current state of a contiguous container, such as
/// <c>std::vector</c>, <c>std::string</c>, or similar.
///
/// A contiguous container is a container that keeps all of its elements
/// in a contiguous region of memory. The container owns the region of memory
/// <c>[beg, end)</c>; the memory <c>[beg, mid)</c> is used to store the
/// current elements, and the memory <c>[mid, end)</c> is reserved for future
/// elements (<c>beg <= mid <= end</c>). For example, in
/// <c>std::vector<> v</c>:
///
/// \code
/// beg = &v[0];
/// end = beg + v.capacity() * sizeof(v[0]);
/// mid = beg + v.size() * sizeof(v[0]);
/// \endcode
///
/// This annotation tells the Sanitizer tool about the current state of the
/// container so that the tool can report errors when memory from
/// <c>[mid, end)</c> is accessed. Insert this annotation into methods like
/// <c>push_back()</c> or <c>pop_back()</c>. Supply the old and new values of
/// <c>mid</c>(<c><i>old_mid</i></c> and <c><i>new_mid</i></c>). In the initial
/// state <c>mid == end</c>, so that should be the final state when the
/// container is destroyed or when the container reallocates the storage.
///
/// For ASan, <c><i>beg</i></c> should be 8-aligned and <c><i>end</i></c>
/// should be either 8-aligned or it should point to the end of a separate
/// heap-, stack-, or global-allocated buffer. So the following example will
/// not work:
///
/// \code
/// int64_t x[2]; // 16 bytes, 8-aligned
/// char *beg = (char *)&x[0];
/// char *end = beg + 12; // Not 8-aligned, not the end of the buffer
/// \endcode
///
/// The following, however, will work:
/// \code
/// int32_t x[3]; // 12 bytes, but 8-aligned under ASan.
/// char *beg = (char*)&x[0];
/// char *end = beg + 12; // Not 8-aligned, but is the end of the buffer
/// \endcode
///
/// \note Use this function with caution and do not use for anything other
/// than vector-like classes.
///
/// \param beg Beginning of memory region.
/// \param end End of memory region.
/// \param old_mid Old middle of memory region.
/// \param new_mid New middle of memory region.
void __sanitizer_annotate_contiguous_container(const void *beg,
const void *end,
const void *old_mid,
const void *new_mid);
// Fiber annotation interface.
// Before switching to a different stack, one must call
// __sanitizer_start_switch_fiber with a pointer to the bottom of the
// destination stack and its size. When code starts running on the new stack,
// it must call __sanitizer_finish_switch_fiber to finalize the switch.
// The start_switch function takes a void** to store the current fake stack if
// there is one (it is needed when detect_stack_use_after_return is enabled).
// When restoring a stack, this pointer must be given to the finish_switch
// function. In most cases, this void* can be stored on the stack just before
// switching. When leaving a fiber definitely, null must be passed as first
// argument to the start_switch function so that the fake stack is destroyed.
// If you do not want support for stack use-after-return detection, you can
// always pass null to these two functions.
// Note that the fake stack mechanism is disabled during fiber switch, so if a
// signal callback runs during the switch, it will not benefit from the stack
// use-after-return detection.
void __sanitizer_start_switch_fiber(void **fake_stack_save,
const void *bottom, size_t size);
void __sanitizer_finish_switch_fiber(void *fake_stack_save,
const void **bottom_old,
size_t *size_old);
/// Returns true if the contiguous container <c>[beg, end)</c> is properly
/// poisoned.
///
/// Proper poisoning could occur, for example, with
/// <c>__sanitizer_annotate_contiguous_container</c>), that is, if
/// <c>[beg, mid)</c> is addressable and <c>[mid, end)</c> is unaddressable.
/// Full verification requires O (<c>end - beg</c>) time; this function tries
/// to avoid such complexity by touching only parts of the container around
/// <c><i>beg</i></c>, <c><i>mid</i></c>, and <c><i>end</i></c>.
///
/// \param beg Beginning of memory region.
/// \param mid Middle of memory region.
/// \param end Old end of memory region.
///
/// \returns True if the contiguous container <c>[beg, end)</c> is properly
/// poisoned.
int __sanitizer_verify_contiguous_container(const void *beg, const void *mid,
const void *end);
// Get full module name and calculate pc offset within it.
// Returns 1 if pc belongs to some module, 0 if module was not found.
int __sanitizer_get_module_and_offset_for_pc(void *pc, char *module_path,
size_t module_path_len,
void **pc_offset);
/// Similar to <c>__sanitizer_verify_contiguous_container()</c> but also
/// returns the address of the first improperly poisoned byte.
///
/// Returns NULL if the area is poisoned properly.
///
/// \param beg Beginning of memory region.
/// \param mid Middle of memory region.
/// \param end Old end of memory region.
///
/// \returns The bad address or NULL.
const void *__sanitizer_contiguous_container_find_bad_address(const void *beg,
const void *mid,
const void *end);
/// Prints the stack trace leading to this call (useful for calling from the
/// debugger).
void __sanitizer_print_stack_trace(void);
// Symbolizes the supplied 'pc' using the format string 'fmt'.
// Outputs at most 'out_buf_size' bytes into 'out_buf'.
// If 'out_buf' is not empty then output is zero or more non empty C strings
// followed by single empty C string. Multiple strings can be returned if PC
// corresponds to inlined function. Inlined frames are printed in the order
// from "most-inlined" to the "least-inlined", so the last frame should be the
// not inlined function.
// Inlined frames can be removed with 'symbolize_inline_frames=0'.
// The format syntax is described in
// lib/sanitizer_common/sanitizer_stacktrace_printer.h.
void __sanitizer_symbolize_pc(void *pc, const char *fmt, char *out_buf,
size_t out_buf_size);
// Same as __sanitizer_symbolize_pc, but for data section (i.e. globals).
void __sanitizer_symbolize_global(void *data_ptr, const char *fmt,
char *out_buf, size_t out_buf_size);
/// Sets the callback to be called immediately before death on error.
///
/// Passing 0 will unset the callback.
///
/// \param callback User-provided callback.
void __sanitizer_set_death_callback(void (*callback)(void));
// Interceptor hooks.
// Whenever a libc function interceptor is called, it checks if the
// corresponding weak hook is defined, and calls it if it is indeed defined.
// The primary use-case is data-flow-guided fuzzing, where the fuzzer needs
// to know what is being passed to libc functions (for example memcmp).
// FIXME: implement more hooks.
/// Interceptor hook for <c>memcmp()</c>.
///
/// \param called_pc PC (program counter) address of the original call.
/// \param s1 Pointer to block of memory.
/// \param s2 Pointer to block of memory.
/// \param n Number of bytes to compare.
/// \param result Value returned by the intercepted function.
void __sanitizer_weak_hook_memcmp(void *called_pc, const void *s1,
const void *s2, size_t n, int result);
/// Interceptor hook for <c>strncmp()</c>.
///
/// \param called_pc PC (program counter) address of the original call.
/// \param s1 Pointer to block of memory.
/// \param s2 Pointer to block of memory.
/// \param n Number of bytes to compare.
/// \param result Value returned by the intercepted function.
void __sanitizer_weak_hook_strncmp(void *called_pc, const char *s1,
const char *s2, size_t n, int result);
/// Interceptor hook for <c>strncasecmp()</c>.
///
/// \param called_pc PC (program counter) address of the original call.
/// \param s1 Pointer to block of memory.
/// \param s2 Pointer to block of memory.
/// \param n Number of bytes to compare.
/// \param result Value returned by the intercepted function.
void __sanitizer_weak_hook_strncasecmp(void *called_pc, const char *s1,
const char *s2, size_t n, int result);
/// Interceptor hook for <c>strcmp()</c>.
///
/// \param called_pc PC (program counter) address of the original call.
/// \param s1 Pointer to block of memory.
/// \param s2 Pointer to block of memory.
/// \param result Value returned by the intercepted function.
void __sanitizer_weak_hook_strcmp(void *called_pc, const char *s1,
const char *s2, int result);
/// Interceptor hook for <c>strcasecmp()</c>.
///
/// \param called_pc PC (program counter) address of the original call.
/// \param s1 Pointer to block of memory.
/// \param s2 Pointer to block of memory.
/// \param result Value returned by the intercepted function.
void __sanitizer_weak_hook_strcasecmp(void *called_pc, const char *s1,
const char *s2, int result);
/// Interceptor hook for <c>strstr()</c>.
///
/// \param called_pc PC (program counter) address of the original call.
/// \param s1 Pointer to block of memory.
/// \param s2 Pointer to block of memory.
/// \param result Value returned by the intercepted function.
void __sanitizer_weak_hook_strstr(void *called_pc, const char *s1,
const char *s2, char *result);
void __sanitizer_weak_hook_strcasestr(void *called_pc, const char *s1,
const char *s2, char *result);
void __sanitizer_weak_hook_memmem(void *called_pc,
const void *s1, size_t len1,
const void *s2, size_t len2, void *result);
// Prints stack traces for all live heap allocations ordered by total
// allocation size until top_percent of total live heap is shown. top_percent
// should be between 1 and 100. At most max_number_of_contexts contexts
// (stack traces) are printed.
// Experimental feature currently available only with ASan on Linux/x86_64.
void __sanitizer_print_memory_profile(size_t top_percent,
size_t max_number_of_contexts);
/// Notify ASan that a fiber switch has started (required only if implementing
/// your own fiber library).
///
/// Before switching to a different stack, you must call
/// <c>__sanitizer_start_switch_fiber()</c> with a pointer to the bottom of the
/// destination stack and with its size. When code starts running on the new
/// stack, it must call <c>__sanitizer_finish_switch_fiber()</c> to finalize
/// the switch. The <c>__sanitizer_start_switch_fiber()</c> function takes a
/// <c>void**</c> pointer argument to store the current fake stack if there is
/// one (it is necessary when the runtime option
/// <c>detect_stack_use_after_return</c> is enabled).
///
/// When restoring a stack, this <c>void**</c> pointer must be given to the
/// <c>__sanitizer_finish_switch_fiber()</c> function. In most cases, this
/// pointer can be stored on the stack immediately before switching. When
/// leaving a fiber definitely, NULL must be passed as the first argument to
/// the <c>__sanitizer_start_switch_fiber()</c> function so that the fake stack
/// is destroyed. If your program does not need stack use-after-return
/// detection, you can always pass NULL to these two functions.
///
/// \note The fake stack mechanism is disabled during fiber switch, so if a
/// signal callback runs during the switch, it will not benefit from stack
/// use-after-return detection.
///
/// \param fake_stack_save [out] Fake stack save location.
/// \param bottom Bottom address of stack.
/// \param size Size of stack in bytes.
void __sanitizer_start_switch_fiber(void **fake_stack_save,
const void *bottom, size_t size);
/// Notify ASan that a fiber switch has completed (required only if
/// implementing your own fiber library).
///
/// When code starts running on the new stack, it must call
/// <c>__sanitizer_finish_switch_fiber()</c> to finalize
/// the switch. For usage details, see the description of
/// <c>__sanitizer_start_switch_fiber()</c>.
///
/// \param fake_stack_save Fake stack save location.
/// \param bottom_old [out] Bottom address of old stack.
/// \param size_old [out] Size of old stack in bytes.
void __sanitizer_finish_switch_fiber(void *fake_stack_save,
const void **bottom_old,
size_t *size_old);
// Get full module name and calculate pc offset within it.
// Returns 1 if pc belongs to some module, 0 if module was not found.
int __sanitizer_get_module_and_offset_for_pc(void *pc, char *module_path,
size_t module_path_len,
void **pc_offset);
#ifdef __cplusplus
} // extern "C"

7
contrib/compiler-rt/include/sanitizer/coverage_interface.h
View File

@ -1,9 +1,8 @@
//===-- sanitizer/coverage_interface.h --------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

13
contrib/compiler-rt/include/sanitizer/dfsan_interface.h
View File

@ -1,9 +1,8 @@
//===-- dfsan_interface.h -------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -80,6 +79,12 @@ dfsan_label dfsan_has_label_with_desc(dfsan_label label, const char *desc);
/// Returns the number of labels allocated.
size_t dfsan_get_label_count(void);
/// Flushes the DFSan shadow, i.e. forgets about all labels currently associated
/// with the application memory. Will work only if there are no other
/// threads executing DFSan-instrumented code concurrently.
/// Use this call to start over the taint tracking within the same procces.
void dfsan_flush(void);
/// Sets a callback to be invoked on calls to write(). The callback is invoked
/// before the write is done. The write is not guaranteed to succeed when the
/// callback executes. Pass in NULL to remove any callback.

50
contrib/compiler-rt/include/sanitizer/esan_interface.h
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@ -1,50 +0,0 @@
//===-- sanitizer/esan_interface.h ------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file is a part of EfficiencySanitizer, a family of performance tuners.
//
// Public interface header.
//===----------------------------------------------------------------------===//
#ifndef SANITIZER_ESAN_INTERFACE_H
#define SANITIZER_ESAN_INTERFACE_H
#include <sanitizer/common_interface_defs.h>
// We declare our interface routines as weak to allow the user to avoid
// ifdefs and instead use this pattern to allow building the same sources
// with and without our runtime library:
// if (__esan_report)
// __esan_report();
#ifdef _MSC_VER
/* selectany is as close to weak as we'll get. */
#define COMPILER_RT_WEAK __declspec(selectany)
#elif __GNUC__
#define COMPILER_RT_WEAK __attribute__((weak))
#else
#define COMPILER_RT_WEAK
#endif
#ifdef __cplusplus
extern "C" {
#endif
// This function can be called mid-run (or at the end of a run for
// a server process that doesn't shut down normally) to request that
// data for that point in the run be reported from the tool.
void COMPILER_RT_WEAK __esan_report(void);
// This function returns the number of samples that the esan tool has collected
// to this point. This is useful for testing.
unsigned int COMPILER_RT_WEAK __esan_get_sample_count(void);
#ifdef __cplusplus
} // extern "C"
#endif
#endif // SANITIZER_ESAN_INTERFACE_H

28
contrib/compiler-rt/include/sanitizer/hwasan_interface.h
View File

@ -1,9 +1,8 @@
//===-- sanitizer/asan_interface.h ------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -19,11 +18,15 @@
#ifdef __cplusplus
extern "C" {
#endif
// Initialize shadow but not the rest of the runtime.
// Libc hook for program startup in statically linked executables.
// Initializes enough of the runtime to run instrumented code. This function
// should only be called in statically linked executables because it modifies
// the GOT, which won't work in regular binaries because RELRO will already
// have been applied by the time the function is called. This also means that
// the function should be called before libc applies RELRO.
// Does not call libc unless there is an error.
// Can be called multiple times, or not at all (in which case shadow will
// be initialized in compiler-inserted __hwasan_init() call).
void __hwasan_shadow_init(void);
// Can be called multiple times.
void __hwasan_init_static(void);
// This function may be optionally provided by user and should return
// a string containing HWASan runtime options. See asan_flags.h for details.
@ -47,6 +50,10 @@ extern "C" {
// does would cause false reports.
void __hwasan_handle_longjmp(const void *sp_dst);
// Set memory tag for the part of the current thread stack below sp_dst to
// zero. Call this in vfork() before returning in the parent process.
void __hwasan_handle_vfork(const void *sp_dst);
// Libc hook for thread creation. Should be called in the child thread before
// any instrumented code.
void __hwasan_thread_enter();
@ -62,6 +69,10 @@ extern "C" {
// Print one-line report about the memory usage of the current process.
void __hwasan_print_memory_usage();
/* Returns the offset of the first byte in the memory range that can not be
* accessed through the pointer in x, or -1 if the whole range is good. */
intptr_t __hwasan_test_shadow(const volatile void *x, size_t size);
int __sanitizer_posix_memalign(void **memptr, size_t alignment, size_t size);
void * __sanitizer_memalign(size_t alignment, size_t size);
void * __sanitizer_aligned_alloc(size_t alignment, size_t size);
@ -76,6 +87,7 @@ extern "C" {
void __sanitizer_malloc_stats(void);
void * __sanitizer_calloc(size_t nmemb, size_t size);
void * __sanitizer_realloc(void *ptr, size_t size);
void * __sanitizer_reallocarray(void *ptr, size_t nmemb, size_t size);
void * __sanitizer_malloc(size_t size);
#ifdef __cplusplus
} // extern "C"

7
contrib/compiler-rt/include/sanitizer/linux_syscall_hooks.h
View File

@ -1,9 +1,8 @@
//===-- linux_syscall_hooks.h ---------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/include/sanitizer/lsan_interface.h
View File

@ -1,9 +1,8 @@
//===-- sanitizer/lsan_interface.h ------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

10
contrib/compiler-rt/include/sanitizer/msan_interface.h
View File

@ -1,9 +1,8 @@
//===-- msan_interface.h --------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -43,6 +42,9 @@ extern "C" {
contents). */
void __msan_unpoison_string(const volatile char *a);
/* Make first n parameters of the next function call fully initialized. */
void __msan_unpoison_param(size_t n);
/* Make memory region fully uninitialized (without changing its contents).
This is a legacy interface that does not update origin information. Use
__msan_allocated_memory() instead. */

7
contrib/compiler-rt/include/sanitizer/netbsd_syscall_hooks.h
View File

@ -1,9 +1,8 @@
//===-- netbsd_syscall_hooks.h --------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/include/sanitizer/scudo_interface.h
View File

@ -1,9 +1,8 @@
//===-- sanitizer/scudo_interface.h -----------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

25
contrib/compiler-rt/include/sanitizer/tsan_interface.h
View File

@ -1,9 +1,8 @@
//===-- tsan_interface.h ----------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -137,6 +136,24 @@ void __tsan_external_assign_tag(void *addr, void *tag);
void __tsan_external_read(void *addr, void *caller_pc, void *tag);
void __tsan_external_write(void *addr, void *caller_pc, void *tag);
// Fiber switching API.
// - TSAN context for fiber can be created by __tsan_create_fiber
// and freed by __tsan_destroy_fiber.
// - TSAN context of current fiber or thread can be obtained
// by calling __tsan_get_current_fiber.
// - __tsan_switch_to_fiber should be called immediatly before switch
// to fiber, such as call of swapcontext.
// - Fiber name can be set by __tsan_set_fiber_name.
void *__tsan_get_current_fiber(void);
void *__tsan_create_fiber(unsigned flags);
void __tsan_destroy_fiber(void *fiber);
void __tsan_switch_to_fiber(void *fiber, unsigned flags);
void __tsan_set_fiber_name(void *fiber, const char *name);
// Flags for __tsan_switch_to_fiber:
// Do not establish a happens-before relation between fibers
const unsigned __tsan_switch_to_fiber_no_sync = 1 << 0;
#ifdef __cplusplus
} // extern "C"
#endif

9
contrib/compiler-rt/include/sanitizer/tsan_interface_atomic.h
View File

@ -1,9 +1,8 @@
//===-- tsan_interface_atomic.h ---------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -31,7 +30,7 @@ __extension__ typedef __int128 __tsan_atomic128;
#endif
// Part of ABI, do not change.
// http://llvm.org/viewvc/llvm-project/libcxx/trunk/include/atomic?view=markup
// https://github.com/llvm/llvm-project/blob/master/libcxx/include/atomic
typedef enum {
__tsan_memory_order_relaxed,
__tsan_memory_order_consume,

7
contrib/compiler-rt/include/xray/xray_interface.h
View File

@ -1,9 +1,8 @@
//===- xray_interface.h -----------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/include/xray/xray_log_interface.h
View File

@ -1,9 +1,8 @@
//===-- xray_log_interface.h ----------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/include/xray/xray_records.h
View File

@ -1,9 +1,8 @@
//===-- xray_records.h ------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/lib/asan/asan_activation.cc
View File

@ -1,9 +1,8 @@
//===-- asan_activation.cc --------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/lib/asan/asan_activation.h
View File

@ -1,9 +1,8 @@
//===-- asan_activation.h ---------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/lib/asan/asan_activation_flags.inc
View File

@ -1,9 +1,8 @@
//===-- asan_activation_flags.inc -------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

18
contrib/compiler-rt/lib/asan/asan_allocator.cc
View File

@ -1,9 +1,8 @@
//===-- asan_allocator.cc -------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -880,6 +879,17 @@ void *asan_calloc(uptr nmemb, uptr size, BufferedStackTrace *stack) {
return SetErrnoOnNull(instance.Calloc(nmemb, size, stack));
}
void *asan_reallocarray(void *p, uptr nmemb, uptr size,
BufferedStackTrace *stack) {
if (UNLIKELY(CheckForCallocOverflow(size, nmemb))) {
errno = errno_ENOMEM;
if (AllocatorMayReturnNull())
return nullptr;
ReportReallocArrayOverflow(nmemb, size, stack);
}
return asan_realloc(p, nmemb * size, stack);
}
void *asan_realloc(void *p, uptr size, BufferedStackTrace *stack) {
if (!p)
return SetErrnoOnNull(instance.Allocate(size, 8, stack, FROM_MALLOC, true));

41
contrib/compiler-rt/lib/asan/asan_allocator.h
View File

@ -1,9 +1,8 @@
//===-- asan_allocator.h ----------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -134,11 +133,15 @@ const uptr kAllocatorSpace = ~(uptr)0;
const uptr kAllocatorSize = 0x2000000000ULL; // 128G.
typedef VeryCompactSizeClassMap SizeClassMap;
# elif defined(__aarch64__)
// AArch64/SANITIZER_CAN_USER_ALLOCATOR64 is only for 42-bit VMA
// AArch64/SANITIZER_CAN_USE_ALLOCATOR64 is only for 42-bit VMA
// so no need to different values for different VMA.
const uptr kAllocatorSpace = 0x10000000000ULL;
const uptr kAllocatorSize = 0x10000000000ULL; // 3T.
typedef DefaultSizeClassMap SizeClassMap;
#elif defined(__sparc__)
const uptr kAllocatorSpace = ~(uptr)0;
const uptr kAllocatorSize = 0x20000000000ULL; // 2T.
typedef DefaultSizeClassMap SizeClassMap;
# elif SANITIZER_WINDOWS
const uptr kAllocatorSpace = ~(uptr)0;
const uptr kAllocatorSize = 0x8000000000ULL; // 500G
@ -163,16 +166,6 @@ template <typename AddressSpaceView>
using PrimaryAllocatorASVT = SizeClassAllocator64<AP64<AddressSpaceView>>;
using PrimaryAllocator = PrimaryAllocatorASVT<LocalAddressSpaceView>;
#else // Fallback to SizeClassAllocator32.
static const uptr kRegionSizeLog = 20;
static const uptr kNumRegions = SANITIZER_MMAP_RANGE_SIZE >> kRegionSizeLog;
# if SANITIZER_WORDSIZE == 32
template <typename AddressSpaceView>
using ByteMapASVT = FlatByteMap<kNumRegions, AddressSpaceView>;
# elif SANITIZER_WORDSIZE == 64
template <typename AddressSpaceView>
using ByteMapASVT =
TwoLevelByteMap<(kNumRegions >> 12), 1 << 12, AddressSpaceView>;
# endif
typedef CompactSizeClassMap SizeClassMap;
template <typename AddressSpaceViewTy>
struct AP32 {
@ -180,9 +173,8 @@ struct AP32 {
static const u64 kSpaceSize = SANITIZER_MMAP_RANGE_SIZE;
static const uptr kMetadataSize = 16;
typedef __asan::SizeClassMap SizeClassMap;
static const uptr kRegionSizeLog = __asan::kRegionSizeLog;
static const uptr kRegionSizeLog = 20;
using AddressSpaceView = AddressSpaceViewTy;
using ByteMap = __asan::ByteMapASVT<AddressSpaceView>;
typedef AsanMapUnmapCallback MapUnmapCallback;
static const uptr kFlags = 0;
};
@ -192,21 +184,12 @@ using PrimaryAllocator = PrimaryAllocatorASVT<LocalAddressSpaceView>;
#endif // SANITIZER_CAN_USE_ALLOCATOR64
static const uptr kNumberOfSizeClasses = SizeClassMap::kNumClasses;
template <typename AddressSpaceView>
using AllocatorCacheASVT =
SizeClassAllocatorLocalCache<PrimaryAllocatorASVT<AddressSpaceView>>;
using AllocatorCache = AllocatorCacheASVT<LocalAddressSpaceView>;
template <typename AddressSpaceView>
using SecondaryAllocatorASVT =
LargeMmapAllocator<AsanMapUnmapCallback, DefaultLargeMmapAllocatorPtrArray,
AddressSpaceView>;
template <typename AddressSpaceView>
using AsanAllocatorASVT =
CombinedAllocator<PrimaryAllocatorASVT<AddressSpaceView>,
AllocatorCacheASVT<AddressSpaceView>,
SecondaryAllocatorASVT<AddressSpaceView>>;
CombinedAllocator<PrimaryAllocatorASVT<AddressSpaceView>>;
using AsanAllocator = AsanAllocatorASVT<LocalAddressSpaceView>;
using AllocatorCache = AsanAllocator::AllocatorCache;
struct AsanThreadLocalMallocStorage {
uptr quarantine_cache[16];
@ -226,6 +209,8 @@ void asan_delete(void *ptr, uptr size, uptr alignment,
void *asan_malloc(uptr size, BufferedStackTrace *stack);
void *asan_calloc(uptr nmemb, uptr size, BufferedStackTrace *stack);
void *asan_realloc(void *p, uptr size, BufferedStackTrace *stack);
void *asan_reallocarray(void *p, uptr nmemb, uptr size,
BufferedStackTrace *stack);
void *asan_valloc(uptr size, BufferedStackTrace *stack);
void *asan_pvalloc(uptr size, BufferedStackTrace *stack);

7
contrib/compiler-rt/lib/asan/asan_debugging.cc
View File

@ -1,9 +1,8 @@
//===-- asan_debugging.cc -------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/lib/asan/asan_descriptions.cc
View File

@ -1,9 +1,8 @@
//===-- asan_descriptions.cc ------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/lib/asan/asan_descriptions.h
View File

@ -1,9 +1,8 @@
//===-- asan_descriptions.h -------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

22
contrib/compiler-rt/lib/asan/asan_errors.cc
View File

@ -1,9 +1,8 @@
//===-- asan_errors.cc ------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -36,7 +35,7 @@ static void OnStackUnwind(const SignalContext &sig,
// corresponding code in the sanitizer_common and we use this callback to
// print it.
static_cast<const ScarinessScoreBase *>(callback_context)->Print();
GetStackTrace(stack, kStackTraceMax, sig.pc, sig.bp, sig.context, fast);
stack->Unwind(sig.pc, sig.bp, sig.context, fast);
}
void ErrorDeadlySignal::Print() {
@ -178,6 +177,19 @@ void ErrorCallocOverflow::Print() {
ReportErrorSummary(scariness.GetDescription(), stack);
}
void ErrorReallocArrayOverflow::Print() {
Decorator d;
Printf("%s", d.Error());
Report(
"ERROR: AddressSanitizer: reallocarray parameters overflow: count * size "
"(%zd * %zd) cannot be represented in type size_t (thread %s)\n",
count, size, AsanThreadIdAndName(tid).c_str());
Printf("%s", d.Default());
stack->Print();
PrintHintAllocatorCannotReturnNull();
ReportErrorSummary(scariness.GetDescription(), stack);
}
void ErrorPvallocOverflow::Print() {
Decorator d;
Printf("%s", d.Error());

29
contrib/compiler-rt/lib/asan/asan_errors.h
View File

@ -1,9 +1,8 @@
//===-- asan_errors.h -------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -164,6 +163,21 @@ struct ErrorCallocOverflow : ErrorBase {
void Print();
};
struct ErrorReallocArrayOverflow : ErrorBase {
const BufferedStackTrace *stack;
uptr count;
uptr size;
ErrorReallocArrayOverflow() = default; // (*)
ErrorReallocArrayOverflow(u32 tid, BufferedStackTrace *stack_, uptr count_,
uptr size_)
: ErrorBase(tid, 10, "reallocarray-overflow"),
stack(stack_),
count(count_),
size(size_) {}
void Print();
};
struct ErrorPvallocOverflow : ErrorBase {
const BufferedStackTrace *stack;
uptr size;
@ -372,6 +386,7 @@ struct ErrorGeneric : ErrorBase {
macro(MallocUsableSizeNotOwned) \
macro(SanitizerGetAllocatedSizeNotOwned) \
macro(CallocOverflow) \
macro(ReallocArrayOverflow) \
macro(PvallocOverflow) \
macro(InvalidAllocationAlignment) \
macro(InvalidAlignedAllocAlignment) \
@ -389,8 +404,10 @@ struct ErrorGeneric : ErrorBase {
#define ASAN_DEFINE_ERROR_KIND(name) kErrorKind##name,
#define ASAN_ERROR_DESCRIPTION_MEMBER(name) Error##name name;
#define ASAN_ERROR_DESCRIPTION_CONSTRUCTOR(name) \
ErrorDescription(Error##name const &e) : kind(kErrorKind##name), name(e) {}
#define ASAN_ERROR_DESCRIPTION_CONSTRUCTOR(name) \
ErrorDescription(Error##name const &e) : kind(kErrorKind##name) { \
internal_memcpy(&name, &e, sizeof(name)); \
}
#define ASAN_ERROR_DESCRIPTION_PRINT(name) \
case kErrorKind##name: \
return name.Print();

7
contrib/compiler-rt/lib/asan/asan_fake_stack.cc
View File

@ -1,9 +1,8 @@
//===-- asan_fake_stack.cc ------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/lib/asan/asan_fake_stack.h
View File

@ -1,9 +1,8 @@
//===-- asan_fake_stack.h ---------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

13
contrib/compiler-rt/lib/asan/asan_flags.cc
View File

@ -1,9 +1,8 @@
//===-- asan_flags.cc -------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -121,12 +120,12 @@ void InitializeFlags() {
#endif
// Override from command line.
asan_parser.ParseString(GetEnv("ASAN_OPTIONS"));
asan_parser.ParseStringFromEnv("ASAN_OPTIONS");
#if CAN_SANITIZE_LEAKS
lsan_parser.ParseString(GetEnv("LSAN_OPTIONS"));
lsan_parser.ParseStringFromEnv("LSAN_OPTIONS");
#endif
#if CAN_SANITIZE_UB
ubsan_parser.ParseString(GetEnv("UBSAN_OPTIONS"));
ubsan_parser.ParseStringFromEnv("UBSAN_OPTIONS");
#endif
InitializeCommonFlags();

7
contrib/compiler-rt/lib/asan/asan_flags.h
View File

@ -1,9 +1,8 @@
//===-- asan_flags.h -------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

9
contrib/compiler-rt/lib/asan/asan_flags.inc
View File

@ -1,9 +1,8 @@
//===-- asan_flags.inc ------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -159,3 +158,5 @@ ASAN_FLAG(bool, allocator_frees_and_returns_null_on_realloc_zero, true,
ASAN_FLAG(bool, verify_asan_link_order, true,
"Check position of ASan runtime in library list (needs to be disabled"
" when other library has to be preloaded system-wide)")
ASAN_FLAG(bool, windows_hook_rtl_allocators, false,
"(Windows only) enable hooking of Rtl(Allocate|Free|Size|ReAllocate)Heap.")

9
contrib/compiler-rt/lib/asan/asan_fuchsia.cc
View File

@ -1,9 +1,8 @@
//===-- asan_fuchsia.cc --------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===---------------------------------------------------------------------===//
//
@ -179,7 +178,7 @@ static void ThreadStartHook(void *hook, uptr os_id) {
SetCurrentThread(thread);
// In lieu of AsanThread::ThreadStart.
asanThreadRegistry().StartThread(thread->tid(), os_id, /*workerthread*/ false,
asanThreadRegistry().StartThread(thread->tid(), os_id, ThreadType::Regular,
nullptr);
}

12
contrib/compiler-rt/lib/asan/asan_globals.cc
View File

@ -1,9 +1,8 @@
//===-- asan_globals.cc ---------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -116,11 +115,12 @@ int GetGlobalsForAddress(uptr addr, Global *globals, u32 *reg_sites,
if (flags()->report_globals >= 2)
ReportGlobal(g, "Search");
if (IsAddressNearGlobal(addr, g)) {
globals[res] = g;
internal_memcpy(&globals[res], &g, sizeof(g));
if (reg_sites)
reg_sites[res] = FindRegistrationSite(&g);
res++;
if (res == max_globals) break;
if (res == max_globals)
break;
}
}
return res;

7
contrib/compiler-rt/lib/asan/asan_globals_win.cc
View File

@ -1,9 +1,8 @@
//===-- asan_globals_win.cc -----------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/lib/asan/asan_init_version.h
View File

@ -1,9 +1,8 @@
//===-- asan_init_version.h -------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

16
contrib/compiler-rt/lib/asan/asan_interceptors.cc
View File

@ -1,9 +1,8 @@
//===-- asan_interceptors.cc ----------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -580,6 +579,11 @@ INTERCEPTOR(int, __cxa_atexit, void (*func)(void *), void *arg,
}
#endif // ASAN_INTERCEPT___CXA_ATEXIT
#if ASAN_INTERCEPT_VFORK
DEFINE_REAL(int, vfork)
DECLARE_EXTERN_INTERCEPTOR_AND_WRAPPER(int, vfork)
#endif
// ---------------------- InitializeAsanInterceptors ---------------- {{{1
namespace __asan {
void InitializeAsanInterceptors() {
@ -657,6 +661,10 @@ void InitializeAsanInterceptors() {
ASAN_INTERCEPT_FUNC(__cxa_atexit);
#endif
#if ASAN_INTERCEPT_VFORK
ASAN_INTERCEPT_FUNC(vfork);
#endif
InitializePlatformInterceptors();
VReport(1, "AddressSanitizer: libc interceptors initialized\n");

32
contrib/compiler-rt/lib/asan/asan_interceptors.h
View File

@ -1,9 +1,8 @@
//===-- asan_interceptors.h -------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -106,6 +105,13 @@ void InitializePlatformInterceptors();
# define ASAN_INTERCEPT___STRDUP 0
#endif
#if SANITIZER_LINUX && (defined(__arm__) || defined(__aarch64__) || \
defined(__i386__) || defined(__x86_64__))
# define ASAN_INTERCEPT_VFORK 1
#else
# define ASAN_INTERCEPT_VFORK 0
#endif
DECLARE_REAL(int, memcmp, const void *a1, const void *a2, uptr size)
DECLARE_REAL(char*, strchr, const char *str, int c)
DECLARE_REAL(SIZE_T, strlen, const char *s)
@ -114,16 +120,16 @@ DECLARE_REAL(uptr, strnlen, const char *s, uptr maxlen)
DECLARE_REAL(char*, strstr, const char *s1, const char *s2)
#if !SANITIZER_MAC
#define ASAN_INTERCEPT_FUNC(name) \
do { \
if ((!INTERCEPT_FUNCTION(name) || !REAL(name))) \
VReport(1, "AddressSanitizer: failed to intercept '" #name "'\n"); \
#define ASAN_INTERCEPT_FUNC(name) \
do { \
if (!INTERCEPT_FUNCTION(name)) \
VReport(1, "AddressSanitizer: failed to intercept '%s'\n'", #name); \
} while (0)
#define ASAN_INTERCEPT_FUNC_VER(name, ver) \
do { \
if ((!INTERCEPT_FUNCTION_VER(name, ver) || !REAL(name))) \
VReport( \
1, "AddressSanitizer: failed to intercept '" #name "@@" #ver "'\n"); \
#define ASAN_INTERCEPT_FUNC_VER(name, ver) \
do { \
if (!INTERCEPT_FUNCTION_VER(name, ver)) \
VReport(1, "AddressSanitizer: failed to intercept '%s@@%s'\n", #name, \
#ver); \
} while (0)
#else
// OS X interceptors don't need to be initialized with INTERCEPT_FUNCTION.

7
contrib/compiler-rt/lib/asan/asan_interceptors_memintrinsics.cc
View File

@ -1,9 +1,8 @@
//===-- asan_interceptors_memintrinsics.cc --------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===---------------------------------------------------------------------===//
//

7
contrib/compiler-rt/lib/asan/asan_interceptors_memintrinsics.h
View File

@ -1,9 +1,8 @@
//===-- asan_interceptors_memintrinsics.h -----------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===---------------------------------------------------------------------===//
//

12
contrib/compiler-rt/lib/asan/asan_interceptors_vfork.S Normal file
View File

@ -0,0 +1,12 @@
#include "sanitizer_common/sanitizer_asm.h"
#if defined(__linux__)
#define COMMON_INTERCEPTOR_SPILL_AREA __asan_extra_spill_area
#define COMMON_INTERCEPTOR_HANDLE_VFORK __asan_handle_vfork
#include "sanitizer_common/sanitizer_common_interceptors_vfork_aarch64.inc.S"
#include "sanitizer_common/sanitizer_common_interceptors_vfork_arm.inc.S"
#include "sanitizer_common/sanitizer_common_interceptors_vfork_x86_64.inc.S"
#include "sanitizer_common/sanitizer_common_interceptors_vfork_i386.inc.S"
#endif
NO_EXEC_STACK_DIRECTIVE

8
contrib/compiler-rt/lib/asan/asan_interface.inc
View File

@ -1,9 +1,8 @@
//===-- asan_interface.inc ------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// Asan interface list.
@ -39,6 +38,7 @@ INTERFACE_FUNCTION(__asan_get_report_pc)
INTERFACE_FUNCTION(__asan_get_report_sp)
INTERFACE_FUNCTION(__asan_get_shadow_mapping)
INTERFACE_FUNCTION(__asan_handle_no_return)
INTERFACE_FUNCTION(__asan_handle_vfork)
INTERFACE_FUNCTION(__asan_init)
INTERFACE_FUNCTION(__asan_load_cxx_array_cookie)
INTERFACE_FUNCTION(__asan_load1)

9
contrib/compiler-rt/lib/asan/asan_interface_internal.h
View File

@ -1,9 +1,8 @@
//===-- asan_interface_internal.h -------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -250,6 +249,8 @@ extern "C" {
SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE
const char* __asan_default_suppressions();
SANITIZER_INTERFACE_ATTRIBUTE void __asan_handle_vfork(void *sp);
} // extern "C"
#endif // ASAN_INTERFACE_INTERNAL_H

7
contrib/compiler-rt/lib/asan/asan_internal.h
View File

@ -1,9 +1,8 @@
//===-- asan_internal.h -----------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/lib/asan/asan_linux.cc
View File

@ -1,9 +1,8 @@
//===-- asan_linux.cc -----------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

11
contrib/compiler-rt/lib/asan/asan_mac.cc
View File

@ -1,9 +1,8 @@
//===-- asan_mac.cc -------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -182,8 +181,8 @@ void asan_register_worker_thread(int parent_tid, StackTrace *stack) {
t = AsanThread::Create(/* start_routine */ nullptr, /* arg */ nullptr,
parent_tid, stack, /* detached */ true);
t->Init();
asanThreadRegistry().StartThread(t->tid(), GetTid(),
/* workerthread */ true, 0);
asanThreadRegistry().StartThread(t->tid(), GetTid(), ThreadType::Worker,
nullptr);
SetCurrentThread(t);
}
}

15
contrib/compiler-rt/lib/asan/asan_malloc_linux.cc
View File

@ -1,9 +1,8 @@
//===-- asan_malloc_linux.cc ----------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -166,6 +165,14 @@ INTERCEPTOR(void*, realloc, void *ptr, uptr size) {
return asan_realloc(ptr, size, &stack);
}
#if SANITIZER_INTERCEPT_REALLOCARRAY
INTERCEPTOR(void*, reallocarray, void *ptr, uptr nmemb, uptr size) {
ENSURE_ASAN_INITED();
GET_STACK_TRACE_MALLOC;
return asan_reallocarray(ptr, nmemb, size, &stack);
}
#endif // SANITIZER_INTERCEPT_REALLOCARRAY
#if SANITIZER_INTERCEPT_MEMALIGN
INTERCEPTOR(void*, memalign, uptr boundary, uptr size) {
GET_STACK_TRACE_MALLOC;

32
contrib/compiler-rt/lib/asan/asan_malloc_local.h
View File

@ -1,9 +1,8 @@
//===-- asan_malloc_local.h -------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -18,25 +17,34 @@
#include "sanitizer_common/sanitizer_platform.h"
#include "asan_internal.h"
// On RTEMS, we use the local pool to handle memory allocation when the ASan
// run-time is not up.
static INLINE bool EarlyMalloc() {
return SANITIZER_RTEMS && (!__asan::asan_inited ||
__asan::asan_init_is_running);
return SANITIZER_RTEMS &&
(!__asan::asan_inited || __asan::asan_init_is_running);
}
void* MemalignFromLocalPool(uptr alignment, uptr size);
#if SANITIZER_RTEMS
bool IsFromLocalPool(const void *ptr);
void *MemalignFromLocalPool(uptr alignment, uptr size);
// On RTEMS, we use the local pool to handle memory allocation when the ASan
// run-time is not up. This macro is expanded in the context of the operator new
// implementation.
#define MAYBE_ALLOCATE_FROM_LOCAL_POOL(nothrow) \
do { \
if (UNLIKELY(EarlyMalloc())) { \
void *res = MemalignFromLocalPool(SHADOW_GRANULARITY, size); \
if (!nothrow) \
CHECK(res); \
return res; \
} \
} while (0)
#define ALLOCATE_FROM_LOCAL_POOL UNLIKELY(EarlyMalloc())
#define IS_FROM_LOCAL_POOL(ptr) UNLIKELY(IsFromLocalPool(ptr))
#else // SANITIZER_RTEMS
#define ALLOCATE_FROM_LOCAL_POOL 0
#define MAYBE_ALLOCATE_FROM_LOCAL_POOL(nothrow)
#define IS_FROM_LOCAL_POOL(ptr) 0
#endif // SANITIZER_RTEMS

25
contrib/compiler-rt/lib/asan/asan_malloc_mac.cc
View File

@ -1,9 +1,8 @@
//===-- asan_malloc_mac.cc ------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -19,6 +18,7 @@
#include "asan_report.h"
#include "asan_stack.h"
#include "asan_stats.h"
#include "lsan/lsan_common.h"
using namespace __asan;
#define COMMON_MALLOC_ZONE_NAME "asan"
@ -58,10 +58,13 @@ using namespace __asan;
GET_STACK_TRACE_FREE; \
ReportMacMzReallocUnknown((uptr)ptr, (uptr)zone_ptr, zone_name, &stack);
#define COMMON_MALLOC_NAMESPACE __asan
#define COMMON_MALLOC_HAS_ZONE_ENUMERATOR 0
#define COMMON_MALLOC_HAS_EXTRA_INTROSPECTION_INIT 1
#include "sanitizer_common/sanitizer_malloc_mac.inc"
namespace COMMON_MALLOC_NAMESPACE {
bool HandleDlopenInit() {
static_assert(SANITIZER_SUPPORTS_INIT_FOR_DLOPEN,
"Expected SANITIZER_SUPPORTS_INIT_FOR_DLOPEN to be true");
@ -82,4 +85,18 @@ bool HandleDlopenInit() {
}
} // namespace COMMON_MALLOC_NAMESPACE
namespace {
void mi_extra_init(sanitizer_malloc_introspection_t *mi) {
uptr last_byte_plus_one = 0;
mi->allocator_ptr = 0;
// Range is [begin_ptr, end_ptr)
__lsan::GetAllocatorGlobalRange(&(mi->allocator_ptr), &last_byte_plus_one);
CHECK_NE(mi->allocator_ptr, 0);
CHECK_GT(last_byte_plus_one, mi->allocator_ptr);
mi->allocator_size = last_byte_plus_one - (mi->allocator_ptr);
CHECK_GT(mi->allocator_size, 0);
}
} // namespace
#endif

394
contrib/compiler-rt/lib/asan/asan_malloc_win.cc
View File

@ -1,9 +1,8 @@
//===-- asan_malloc_win.cc ------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -12,8 +11,16 @@
// Windows-specific malloc interception.
//===----------------------------------------------------------------------===//
#include "sanitizer_common/sanitizer_allocator_interface.h"
#include "sanitizer_common/sanitizer_platform.h"
#if SANITIZER_WINDOWS
#include "asan_allocator.h"
#include "asan_interceptors.h"
#include "asan_internal.h"
#include "asan_stack.h"
#include "interception/interception.h"
#include <stddef.h>
// Intentionally not including windows.h here, to avoid the risk of
// pulling in conflicting declarations of these functions. (With mingw-w64,
// there's a risk of windows.h pulling in stdint.h.)
@ -22,17 +29,30 @@ typedef void *HANDLE;
typedef const void *LPCVOID;
typedef void *LPVOID;
#define HEAP_ZERO_MEMORY 0x00000008
#define HEAP_REALLOC_IN_PLACE_ONLY 0x00000010
typedef unsigned long DWORD;
constexpr unsigned long HEAP_ZERO_MEMORY = 0x00000008;
constexpr unsigned long HEAP_REALLOC_IN_PLACE_ONLY = 0x00000010;
constexpr unsigned long HEAP_ALLOCATE_SUPPORTED_FLAGS = (HEAP_ZERO_MEMORY);
constexpr unsigned long HEAP_ALLOCATE_UNSUPPORTED_FLAGS =
(~HEAP_ALLOCATE_SUPPORTED_FLAGS);
constexpr unsigned long HEAP_FREE_SUPPORTED_FLAGS = (0);
constexpr unsigned long HEAP_FREE_UNSUPPORTED_FLAGS =
(~HEAP_ALLOCATE_SUPPORTED_FLAGS);
constexpr unsigned long HEAP_REALLOC_SUPPORTED_FLAGS =
(HEAP_REALLOC_IN_PLACE_ONLY | HEAP_ZERO_MEMORY);
constexpr unsigned long HEAP_REALLOC_UNSUPPORTED_FLAGS =
(~HEAP_ALLOCATE_SUPPORTED_FLAGS);
#include "asan_allocator.h"
#include "asan_interceptors.h"
#include "asan_internal.h"
#include "asan_stack.h"
#include "interception/interception.h"
extern "C" {
LPVOID WINAPI HeapAlloc(HANDLE hHeap, DWORD dwFlags, size_t dwBytes);
LPVOID WINAPI HeapReAlloc(HANDLE hHeap, DWORD dwFlags, LPVOID lpMem,
size_t dwBytes);
BOOL WINAPI HeapFree(HANDLE hHeap, DWORD dwFlags, LPVOID lpMem);
size_t WINAPI HeapSize(HANDLE hHeap, DWORD dwFlags, LPCVOID lpMem);
#include <stddef.h>
BOOL WINAPI HeapValidate(HANDLE hHeap, DWORD dwFlags, LPCVOID lpMem);
}
using namespace __asan; // NOLINT
@ -48,6 +68,18 @@ using namespace __asan; // NOLINT
#endif
extern "C" {
ALLOCATION_FUNCTION_ATTRIBUTE
size_t _msize(void *ptr) {
GET_CURRENT_PC_BP_SP;
(void)sp;
return asan_malloc_usable_size(ptr, pc, bp);
}
ALLOCATION_FUNCTION_ATTRIBUTE
size_t _msize_base(void *ptr) {
return _msize(ptr);
}
ALLOCATION_FUNCTION_ATTRIBUTE
void free(void *ptr) {
GET_STACK_TRACE_FREE;
@ -125,7 +157,16 @@ void *_recalloc(void *p, size_t n, size_t elem_size) {
const size_t size = n * elem_size;
if (elem_size != 0 && size / elem_size != n)
return 0;
return realloc(p, size);
size_t old_size = _msize(p);
void *new_alloc = malloc(size);
if (new_alloc) {
REAL(memcpy)(new_alloc, p, Min<size_t>(size, old_size));
if (old_size < size)
REAL(memset)(((u8 *)new_alloc) + old_size, 0, size - old_size);
free(p);
}
return new_alloc;
}
ALLOCATION_FUNCTION_ATTRIBUTE
@ -133,18 +174,6 @@ void *_recalloc_base(void *p, size_t n, size_t elem_size) {
return _recalloc(p, n, elem_size);
}
ALLOCATION_FUNCTION_ATTRIBUTE
size_t _msize(void *ptr) {
GET_CURRENT_PC_BP_SP;
(void)sp;
return asan_malloc_usable_size(ptr, pc, bp);
}
ALLOCATION_FUNCTION_ATTRIBUTE
size_t _msize_base(void *ptr) {
return _msize(ptr);
}
ALLOCATION_FUNCTION_ATTRIBUTE
void *_expand(void *memblock, size_t size) {
// _expand is used in realloc-like functions to resize the buffer if possible.
@ -175,43 +204,280 @@ int _CrtSetReportMode(int, int) {
}
} // extern "C"
#define OWNED_BY_RTL(heap, memory) \
(!__sanitizer_get_ownership(memory) && HeapValidate(heap, 0, memory))
INTERCEPTOR_WINAPI(size_t, HeapSize, HANDLE hHeap, DWORD dwFlags,
LPCVOID lpMem) {
// If the RTL allocators are hooked we need to check whether the ASAN
// allocator owns the pointer we're about to use. Allocations occur before
// interception takes place, so if it is not owned by the RTL heap we can
// pass it to the ASAN heap for inspection.
if (flags()->windows_hook_rtl_allocators) {
if (!asan_inited || OWNED_BY_RTL(hHeap, lpMem))
return REAL(HeapSize)(hHeap, dwFlags, lpMem);
} else {
CHECK(dwFlags == 0 && "unsupported heap flags");
}
GET_CURRENT_PC_BP_SP;
(void)sp;
return asan_malloc_usable_size(lpMem, pc, bp);
}
INTERCEPTOR_WINAPI(LPVOID, HeapAlloc, HANDLE hHeap, DWORD dwFlags,
SIZE_T dwBytes) {
size_t dwBytes) {
// If the ASAN runtime is not initialized, or we encounter an unsupported
// flag, fall back to the original allocator.
if (flags()->windows_hook_rtl_allocators) {
if (UNLIKELY(!asan_inited ||
(dwFlags & HEAP_ALLOCATE_UNSUPPORTED_FLAGS) != 0)) {
return REAL(HeapAlloc)(hHeap, dwFlags, dwBytes);
}
} else {
// In the case that we don't hook the rtl allocators,
// this becomes an assert since there is no failover to the original
// allocator.
CHECK((HEAP_ALLOCATE_UNSUPPORTED_FLAGS & dwFlags) != 0 &&
"unsupported flags");
}
GET_STACK_TRACE_MALLOC;
void *p = asan_malloc(dwBytes, &stack);
// Reading MSDN suggests that the *entire* usable allocation is zeroed out.
// Otherwise it is difficult to HeapReAlloc with HEAP_ZERO_MEMORY.
// https://blogs.msdn.microsoft.com/oldnewthing/20120316-00/?p=8083
if (dwFlags == HEAP_ZERO_MEMORY)
internal_memset(p, 0, asan_mz_size(p));
else
CHECK(dwFlags == 0 && "unsupported heap flags");
if (p && (dwFlags & HEAP_ZERO_MEMORY)) {
GET_CURRENT_PC_BP_SP;
(void)sp;
auto usable_size = asan_malloc_usable_size(p, pc, bp);
internal_memset(p, 0, usable_size);
}
return p;
}
INTERCEPTOR_WINAPI(BOOL, HeapFree, HANDLE hHeap, DWORD dwFlags, LPVOID lpMem) {
CHECK(dwFlags == 0 && "unsupported heap flags");
// Heap allocations happen before this function is hooked, so we must fall
// back to the original function if the pointer is not from the ASAN heap,
// or unsupported flags are provided.
if (flags()->windows_hook_rtl_allocators) {
if (OWNED_BY_RTL(hHeap, lpMem))
return REAL(HeapFree)(hHeap, dwFlags, lpMem);
} else {
CHECK((HEAP_FREE_UNSUPPORTED_FLAGS & dwFlags) != 0 && "unsupported flags");
}
GET_STACK_TRACE_FREE;
asan_free(lpMem, &stack, FROM_MALLOC);
return true;
}
INTERCEPTOR_WINAPI(LPVOID, HeapReAlloc, HANDLE hHeap, DWORD dwFlags,
LPVOID lpMem, SIZE_T dwBytes) {
GET_STACK_TRACE_MALLOC;
// Realloc should never reallocate in place.
if (dwFlags & HEAP_REALLOC_IN_PLACE_ONLY)
return nullptr;
CHECK(dwFlags == 0 && "unsupported heap flags");
return asan_realloc(lpMem, dwBytes, &stack);
}
namespace __asan {
using AllocFunction = LPVOID(WINAPI *)(HANDLE, DWORD, size_t);
using ReAllocFunction = LPVOID(WINAPI *)(HANDLE, DWORD, LPVOID, size_t);
using SizeFunction = size_t(WINAPI *)(HANDLE, DWORD, LPVOID);
using FreeFunction = BOOL(WINAPI *)(HANDLE, DWORD, LPVOID);
INTERCEPTOR_WINAPI(SIZE_T, HeapSize, HANDLE hHeap, DWORD dwFlags,
LPCVOID lpMem) {
CHECK(dwFlags == 0 && "unsupported heap flags");
void *SharedReAlloc(ReAllocFunction reallocFunc, SizeFunction heapSizeFunc,
FreeFunction freeFunc, AllocFunction allocFunc,
HANDLE hHeap, DWORD dwFlags, LPVOID lpMem, size_t dwBytes) {
CHECK(reallocFunc && heapSizeFunc && freeFunc && allocFunc);
GET_STACK_TRACE_MALLOC;
GET_CURRENT_PC_BP_SP;
(void)sp;
return asan_malloc_usable_size(lpMem, pc, bp);
if (flags()->windows_hook_rtl_allocators) {
enum AllocationOwnership { NEITHER = 0, ASAN = 1, RTL = 2 };
AllocationOwnership ownershipState;
bool owned_rtlalloc = false;
bool owned_asan = __sanitizer_get_ownership(lpMem);
if (!owned_asan)
owned_rtlalloc = HeapValidate(hHeap, 0, lpMem);
if (owned_asan && !owned_rtlalloc)
ownershipState = ASAN;
else if (!owned_asan && owned_rtlalloc)
ownershipState = RTL;
else if (!owned_asan && !owned_rtlalloc)
ownershipState = NEITHER;
// If this heap block which was allocated before the ASAN
// runtime came up, use the real HeapFree function.
if (UNLIKELY(!asan_inited)) {
return reallocFunc(hHeap, dwFlags, lpMem, dwBytes);
}
bool only_asan_supported_flags =
(HEAP_REALLOC_UNSUPPORTED_FLAGS & dwFlags) == 0;
if (ownershipState == RTL ||
(ownershipState == NEITHER && !only_asan_supported_flags)) {
if (only_asan_supported_flags) {
// if this is a conversion to ASAN upported flags, transfer this
// allocation to the ASAN allocator
void *replacement_alloc;
if (dwFlags & HEAP_ZERO_MEMORY)
replacement_alloc = asan_calloc(1, dwBytes, &stack);
else
replacement_alloc = asan_malloc(dwBytes, &stack);
if (replacement_alloc) {
size_t old_size = heapSizeFunc(hHeap, dwFlags, lpMem);
if (old_size == ((size_t)0) - 1) {
asan_free(replacement_alloc, &stack, FROM_MALLOC);
return nullptr;
}
REAL(memcpy)(replacement_alloc, lpMem, old_size);
freeFunc(hHeap, dwFlags, lpMem);
}
return replacement_alloc;
} else {
// owned by rtl or neither with unsupported ASAN flags,
// just pass back to original allocator
CHECK(ownershipState == RTL || ownershipState == NEITHER);
CHECK(!only_asan_supported_flags);
return reallocFunc(hHeap, dwFlags, lpMem, dwBytes);
}
}
if (ownershipState == ASAN && !only_asan_supported_flags) {
// Conversion to unsupported flags allocation,
// transfer this allocation back to the original allocator.
void *replacement_alloc = allocFunc(hHeap, dwFlags, dwBytes);
size_t old_usable_size = 0;
if (replacement_alloc) {
old_usable_size = asan_malloc_usable_size(lpMem, pc, bp);
REAL(memcpy)(replacement_alloc, lpMem,
Min<size_t>(dwBytes, old_usable_size));
asan_free(lpMem, &stack, FROM_MALLOC);
}
return replacement_alloc;
}
CHECK((ownershipState == ASAN || ownershipState == NEITHER) &&
only_asan_supported_flags);
// At this point we should either be ASAN owned with ASAN supported flags
// or we owned by neither and have supported flags.
// Pass through even when it's neither since this could be a null realloc or
// UAF that ASAN needs to catch.
} else {
CHECK((HEAP_REALLOC_UNSUPPORTED_FLAGS & dwFlags) != 0 &&
"unsupported flags");
}
// asan_realloc will never reallocate in place, so for now this flag is
// unsupported until we figure out a way to fake this.
if (dwFlags & HEAP_REALLOC_IN_PLACE_ONLY)
return nullptr;
// HeapReAlloc and HeapAlloc both happily accept 0 sized allocations.
// passing a 0 size into asan_realloc will free the allocation.
// To avoid this and keep behavior consistent, fudge the size if 0.
// (asan_malloc already does this)
if (dwBytes == 0)
dwBytes = 1;
size_t old_size;
if (dwFlags & HEAP_ZERO_MEMORY)
old_size = asan_malloc_usable_size(lpMem, pc, bp);
void *ptr = asan_realloc(lpMem, dwBytes, &stack);
if (ptr == nullptr)
return nullptr;
if (dwFlags & HEAP_ZERO_MEMORY) {
size_t new_size = asan_malloc_usable_size(ptr, pc, bp);
if (old_size < new_size)
REAL(memset)(((u8 *)ptr) + old_size, 0, new_size - old_size);
}
return ptr;
}
} // namespace __asan
INTERCEPTOR_WINAPI(LPVOID, HeapReAlloc, HANDLE hHeap, DWORD dwFlags,
LPVOID lpMem, size_t dwBytes) {
return SharedReAlloc(REAL(HeapReAlloc), (SizeFunction)REAL(HeapSize),
REAL(HeapFree), REAL(HeapAlloc), hHeap, dwFlags, lpMem,
dwBytes);
}
// The following functions are undocumented and subject to change.
// However, hooking them is necessary to hook Windows heap
// allocations with detours and their definitions are unlikely to change.
// Comments in /minkernel/ntos/rtl/heappublic.c indicate that these functions
// are part of the heap's public interface.
typedef unsigned long LOGICAL;
// This function is documented as part of the Driver Development Kit but *not*
// the Windows Development Kit.
LOGICAL RtlFreeHeap(void* HeapHandle, DWORD Flags,
void* BaseAddress);
// This function is documented as part of the Driver Development Kit but *not*
// the Windows Development Kit.
void* RtlAllocateHeap(void* HeapHandle, DWORD Flags, size_t Size);
// This function is completely undocumented.
void*
RtlReAllocateHeap(void* HeapHandle, DWORD Flags, void* BaseAddress,
size_t Size);
// This function is completely undocumented.
size_t RtlSizeHeap(void* HeapHandle, DWORD Flags, void* BaseAddress);
INTERCEPTOR_WINAPI(size_t, RtlSizeHeap, HANDLE HeapHandle, DWORD Flags,
void* BaseAddress) {
if (!flags()->windows_hook_rtl_allocators ||
UNLIKELY(!asan_inited || OWNED_BY_RTL(HeapHandle, BaseAddress))) {
return REAL(RtlSizeHeap)(HeapHandle, Flags, BaseAddress);
}
GET_CURRENT_PC_BP_SP;
(void)sp;
return asan_malloc_usable_size(BaseAddress, pc, bp);
}
INTERCEPTOR_WINAPI(BOOL, RtlFreeHeap, HANDLE HeapHandle, DWORD Flags,
void* BaseAddress) {
// Heap allocations happen before this function is hooked, so we must fall
// back to the original function if the pointer is not from the ASAN heap, or
// unsupported flags are provided.
if (!flags()->windows_hook_rtl_allocators ||
UNLIKELY((HEAP_FREE_UNSUPPORTED_FLAGS & Flags) != 0 ||
OWNED_BY_RTL(HeapHandle, BaseAddress))) {
return REAL(RtlFreeHeap)(HeapHandle, Flags, BaseAddress);
}
GET_STACK_TRACE_FREE;
asan_free(BaseAddress, &stack, FROM_MALLOC);
return true;
}
INTERCEPTOR_WINAPI(void*, RtlAllocateHeap, HANDLE HeapHandle, DWORD Flags,
size_t Size) {
// If the ASAN runtime is not initialized, or we encounter an unsupported
// flag, fall back to the original allocator.
if (!flags()->windows_hook_rtl_allocators ||
UNLIKELY(!asan_inited ||
(Flags & HEAP_ALLOCATE_UNSUPPORTED_FLAGS) != 0)) {
return REAL(RtlAllocateHeap)(HeapHandle, Flags, Size);
}
GET_STACK_TRACE_MALLOC;
void *p;
// Reading MSDN suggests that the *entire* usable allocation is zeroed out.
// Otherwise it is difficult to HeapReAlloc with HEAP_ZERO_MEMORY.
// https://blogs.msdn.microsoft.com/oldnewthing/20120316-00/?p=8083
if (Flags & HEAP_ZERO_MEMORY) {
p = asan_calloc(Size, 1, &stack);
} else {
p = asan_malloc(Size, &stack);
}
return p;
}
INTERCEPTOR_WINAPI(void*, RtlReAllocateHeap, HANDLE HeapHandle, DWORD Flags,
void* BaseAddress, size_t Size) {
// If it's actually a heap block which was allocated before the ASAN runtime
// came up, use the real RtlFreeHeap function.
if (!flags()->windows_hook_rtl_allocators)
return REAL(RtlReAllocateHeap)(HeapHandle, Flags, BaseAddress, Size);
return SharedReAlloc(REAL(RtlReAllocateHeap), REAL(RtlSizeHeap),
REAL(RtlFreeHeap), REAL(RtlAllocateHeap), HeapHandle,
Flags, BaseAddress, Size);
}
namespace __asan {
@ -244,6 +510,34 @@ void ReplaceSystemMalloc() {
TryToOverrideFunction("_expand", (uptr)_expand);
TryToOverrideFunction("_expand_base", (uptr)_expand);
if (flags()->windows_hook_rtl_allocators) {
INTERCEPT_FUNCTION(HeapSize);
INTERCEPT_FUNCTION(HeapFree);
INTERCEPT_FUNCTION(HeapReAlloc);
INTERCEPT_FUNCTION(HeapAlloc);
// Undocumented functions must be intercepted by name, not by symbol.
__interception::OverrideFunction("RtlSizeHeap", (uptr)WRAP(RtlSizeHeap),
(uptr *)&REAL(RtlSizeHeap));
__interception::OverrideFunction("RtlFreeHeap", (uptr)WRAP(RtlFreeHeap),
(uptr *)&REAL(RtlFreeHeap));
__interception::OverrideFunction("RtlReAllocateHeap",
(uptr)WRAP(RtlReAllocateHeap),
(uptr *)&REAL(RtlReAllocateHeap));
__interception::OverrideFunction("RtlAllocateHeap",
(uptr)WRAP(RtlAllocateHeap),
(uptr *)&REAL(RtlAllocateHeap));
} else {
#define INTERCEPT_UCRT_FUNCTION(func) \
if (!INTERCEPT_FUNCTION_DLLIMPORT("ucrtbase.dll", \
"api-ms-win-core-heap-l1-1-0.dll", func)) \
VPrintf(2, "Failed to intercept ucrtbase.dll import %s\n", #func);
INTERCEPT_UCRT_FUNCTION(HeapAlloc);
INTERCEPT_UCRT_FUNCTION(HeapFree);
INTERCEPT_UCRT_FUNCTION(HeapReAlloc);
INTERCEPT_UCRT_FUNCTION(HeapSize);
#undef INTERCEPT_UCRT_FUNCTION
}
// Recent versions of ucrtbase.dll appear to be built with PGO and LTCG, which
// enable cross-module inlining. This means our _malloc_base hook won't catch
// all CRT allocations. This code here patches the import table of
@ -251,16 +545,8 @@ void ReplaceSystemMalloc() {
// allocation API will be directed to ASan's heap. We don't currently
// intercept all calls to HeapAlloc. If we did, we would have to check on
// HeapFree whether the pointer came from ASan of from the system.
#define INTERCEPT_UCRT_FUNCTION(func) \
if (!INTERCEPT_FUNCTION_DLLIMPORT("ucrtbase.dll", \
"api-ms-win-core-heap-l1-1-0.dll", func)) \
VPrintf(2, "Failed to intercept ucrtbase.dll import %s\n", #func);
INTERCEPT_UCRT_FUNCTION(HeapAlloc);
INTERCEPT_UCRT_FUNCTION(HeapFree);
INTERCEPT_UCRT_FUNCTION(HeapReAlloc);
INTERCEPT_UCRT_FUNCTION(HeapSize);
#undef INTERCEPT_UCRT_FUNCTION
#endif
#endif // defined(ASAN_DYNAMIC)
}
} // namespace __asan

35
contrib/compiler-rt/lib/asan/asan_mapping.h
View File

@ -1,9 +1,8 @@
//===-- asan_mapping.h ------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -101,6 +100,13 @@
// || `[0x10000000000000, 0x11ffffffffffff]` || LowShadow ||
// || `[0x00000000000000, 0x0fffffffffffff]` || LowMem ||
//
// Default Linux/SPARC64 (52-bit VMA) mapping:
// || `[0x8000000000000, 0xfffffffffffff]` || HighMem ||
// || `[0x1080000000000, 0x207ffffffffff]` || HighShadow ||
// || `[0x0090000000000, 0x107ffffffffff]` || ShadowGap ||
// || `[0x0080000000000, 0x008ffffffffff]` || LowShadow ||
// || `[0x0000000000000, 0x007ffffffffff]` || LowMem ||
//
// Shadow mapping on FreeBSD/x86-64 with SHADOW_OFFSET == 0x400000000000:
// || `[0x500000000000, 0x7fffffffffff]` || HighMem ||
// || `[0x4a0000000000, 0x4fffffffffff]` || HighShadow ||
@ -154,15 +160,12 @@ static const u64 kDefaultShadowOffset32 = 1ULL << 29; // 0x20000000
static const u64 kDefaultShadowOffset64 = 1ULL << 44;
static const u64 kDefaultShort64bitShadowOffset =
0x7FFFFFFF & (~0xFFFULL << kDefaultShadowScale); // < 2G.
static const u64 kIosShadowOffset32 = 1ULL << 30; // 0x40000000
static const u64 kIosShadowOffset64 = 0x120200000;
static const u64 kIosSimShadowOffset32 = 1ULL << 30;
static const u64 kIosSimShadowOffset64 = kDefaultShadowOffset64;
static const u64 kAArch64_ShadowOffset64 = 1ULL << 36;
static const u64 kMIPS32_ShadowOffset32 = 0x0aaa0000;
static const u64 kMIPS64_ShadowOffset64 = 1ULL << 37;
static const u64 kPPC64_ShadowOffset64 = 1ULL << 44;
static const u64 kSystemZ_ShadowOffset64 = 1ULL << 52;
static const u64 kSPARC64_ShadowOffset64 = 1ULL << 43; // 0x80000000000
static const u64 kFreeBSD_ShadowOffset32 = 1ULL << 30; // 0x40000000
static const u64 kFreeBSD_ShadowOffset64 = 1ULL << 46; // 0x400000000000
static const u64 kNetBSD_ShadowOffset32 = 1ULL << 30; // 0x40000000
@ -194,11 +197,7 @@ static const u64 kMyriadCacheBitMask32 = 0x40000000ULL;
# elif SANITIZER_WINDOWS
# define SHADOW_OFFSET kWindowsShadowOffset32
# elif SANITIZER_IOS
# if SANITIZER_IOSSIM
# define SHADOW_OFFSET kIosSimShadowOffset32
# else
# define SHADOW_OFFSET kIosShadowOffset32
# endif
# define SHADOW_OFFSET __asan_shadow_memory_dynamic_address
# elif SANITIZER_MYRIAD2
# define SHADOW_OFFSET kMyriadShadowOffset32
# else
@ -206,11 +205,7 @@ static const u64 kMyriadCacheBitMask32 = 0x40000000ULL;
# endif
#else
# if SANITIZER_IOS
# if SANITIZER_IOSSIM
# define SHADOW_OFFSET kIosSimShadowOffset64
# else
# define SHADOW_OFFSET __asan_shadow_memory_dynamic_address
# endif
# define SHADOW_OFFSET __asan_shadow_memory_dynamic_address
# elif defined(__aarch64__)
# define SHADOW_OFFSET kAArch64_ShadowOffset64
# elif defined(__powerpc64__)
@ -225,6 +220,8 @@ static const u64 kMyriadCacheBitMask32 = 0x40000000ULL;
# define SHADOW_OFFSET kDefaultShadowOffset64
# elif defined(__mips64)
# define SHADOW_OFFSET kMIPS64_ShadowOffset64
#elif defined(__sparc__)
#define SHADOW_OFFSET kSPARC64_ShadowOffset64
# elif SANITIZER_WINDOWS64
# define SHADOW_OFFSET __asan_shadow_memory_dynamic_address
# else
@ -271,6 +268,8 @@ extern uptr kHighMemEnd, kMidMemBeg, kMidMemEnd; // Initialized in __asan_init.
#if SANITIZER_MYRIAD2
#include "asan_mapping_myriad.h"
#elif defined(__sparc__) && SANITIZER_WORDSIZE == 64
#include "asan_mapping_sparc64.h"
#else
#define MEM_TO_SHADOW(mem) (((mem) >> SHADOW_SCALE) + (SHADOW_OFFSET))

7
contrib/compiler-rt/lib/asan/asan_mapping_myriad.h
View File

@ -1,9 +1,8 @@
//===-- asan_mapping_myriad.h -----------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

101
contrib/compiler-rt/lib/asan/asan_mapping_sparc64.h Normal file
View File

@ -0,0 +1,101 @@
//===-- asan_mapping_sparc64.h ----------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file is a part of AddressSanitizer, an address sanity checker.
//
// SPARC64-specific definitions for ASan memory mapping.
//===----------------------------------------------------------------------===//
#ifndef ASAN_MAPPING_SPARC64_H
#define ASAN_MAPPING_SPARC64_H
// This is tailored to the 52-bit VM layout on SPARC-T4 and later.
// The VM space is split into two 51-bit halves at both ends: the low part
// has all the bits above the 51st cleared, while the high part has them set.
// 0xfff8000000000000 - 0xffffffffffffffff
// 0x0000000000000000 - 0x0007ffffffffffff
#define VMA_BITS 52
#define HIGH_BITS (64 - VMA_BITS)
// The idea is to chop the high bits before doing the scaling, so the two
// parts become contiguous again and the usual scheme can be applied.
#define MEM_TO_SHADOW(mem) \
((((mem) << HIGH_BITS) >> (HIGH_BITS + (SHADOW_SCALE))) + (SHADOW_OFFSET))
#define kLowMemBeg 0
#define kLowMemEnd (SHADOW_OFFSET - 1)
#define kLowShadowBeg SHADOW_OFFSET
#define kLowShadowEnd MEM_TO_SHADOW(kLowMemEnd)
// But of course there is the huge hole between the high shadow memory,
// which is in the low part, and the beginning of the high part.
#define kHighMemBeg (-(1ULL << (VMA_BITS - 1)))
#define kHighShadowBeg MEM_TO_SHADOW(kHighMemBeg)
#define kHighShadowEnd MEM_TO_SHADOW(kHighMemEnd)
#define kMidShadowBeg 0
#define kMidShadowEnd 0
// With the zero shadow base we can not actually map pages starting from 0.
// This constant is somewhat arbitrary.
#define kZeroBaseShadowStart 0
#define kZeroBaseMaxShadowStart (1 << 18)
#define kShadowGapBeg (kLowShadowEnd + 1)
#define kShadowGapEnd (kHighShadowBeg - 1)
#define kShadowGap2Beg 0
#define kShadowGap2End 0
#define kShadowGap3Beg 0
#define kShadowGap3End 0
namespace __asan {
static inline bool AddrIsInLowMem(uptr a) {
PROFILE_ASAN_MAPPING();
return a <= kLowMemEnd;
}
static inline bool AddrIsInLowShadow(uptr a) {
PROFILE_ASAN_MAPPING();
return a >= kLowShadowBeg && a <= kLowShadowEnd;
}
static inline bool AddrIsInMidMem(uptr a) {
PROFILE_ASAN_MAPPING();
return false;
}
static inline bool AddrIsInMidShadow(uptr a) {
PROFILE_ASAN_MAPPING();
return false;
}
static inline bool AddrIsInHighMem(uptr a) {
PROFILE_ASAN_MAPPING();
return kHighMemBeg && a >= kHighMemBeg && a <= kHighMemEnd;
}
static inline bool AddrIsInHighShadow(uptr a) {
PROFILE_ASAN_MAPPING();
return kHighMemBeg && a >= kHighShadowBeg && a <= kHighShadowEnd;
}
static inline bool AddrIsInShadowGap(uptr a) {
PROFILE_ASAN_MAPPING();
return a >= kShadowGapBeg && a <= kShadowGapEnd;
}
} // namespace __asan
#endif // ASAN_MAPPING_SPARC64_H

7
contrib/compiler-rt/lib/asan/asan_memory_profile.cc
View File

@ -1,9 +1,8 @@
//===-- asan_memory_profile.cc.cc -----------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

37
contrib/compiler-rt/lib/asan/asan_new_delete.cc
View File

@ -1,9 +1,8 @@
//===-- asan_interceptors.cc ----------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -72,25 +71,19 @@ enum class align_val_t: size_t {};
// TODO(alekseyshl): throw std::bad_alloc instead of dying on OOM.
// For local pool allocation, align to SHADOW_GRANULARITY to match asan
// allocator behavior.
#define OPERATOR_NEW_BODY(type, nothrow) \
if (ALLOCATE_FROM_LOCAL_POOL) {\
void *res = MemalignFromLocalPool(SHADOW_GRANULARITY, size);\
if (!nothrow) CHECK(res);\
return res;\
}\
GET_STACK_TRACE_MALLOC;\
void *res = asan_memalign(0, size, &stack, type);\
if (!nothrow && UNLIKELY(!res)) ReportOutOfMemory(size, &stack);\
#define OPERATOR_NEW_BODY(type, nothrow) \
MAYBE_ALLOCATE_FROM_LOCAL_POOL(nothrow); \
GET_STACK_TRACE_MALLOC; \
void *res = asan_memalign(0, size, &stack, type); \
if (!nothrow && UNLIKELY(!res)) \
ReportOutOfMemory(size, &stack); \
return res;
#define OPERATOR_NEW_BODY_ALIGN(type, nothrow) \
if (ALLOCATE_FROM_LOCAL_POOL) {\
void *res = MemalignFromLocalPool((uptr)align, size);\
if (!nothrow) CHECK(res);\
return res;\
}\
GET_STACK_TRACE_MALLOC;\
void *res = asan_memalign((uptr)align, size, &stack, type);\
if (!nothrow && UNLIKELY(!res)) ReportOutOfMemory(size, &stack);\
#define OPERATOR_NEW_BODY_ALIGN(type, nothrow) \
MAYBE_ALLOCATE_FROM_LOCAL_POOL(nothrow); \
GET_STACK_TRACE_MALLOC; \
void *res = asan_memalign((uptr)align, size, &stack, type); \
if (!nothrow && UNLIKELY(!res)) \
ReportOutOfMemory(size, &stack); \
return res;
// On OS X it's not enough to just provide our own 'operator new' and

7
contrib/compiler-rt/lib/asan/asan_poisoning.cc
View File

@ -1,9 +1,8 @@
//===-- asan_poisoning.cc -------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

17
contrib/compiler-rt/lib/asan/asan_poisoning.h
View File

@ -1,9 +1,8 @@
//===-- asan_poisoning.h ----------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -16,6 +15,7 @@
#include "asan_internal.h"
#include "asan_mapping.h"
#include "sanitizer_common/sanitizer_flags.h"
#include "sanitizer_common/sanitizer_platform.h"
namespace __asan {
@ -39,6 +39,10 @@ void PoisonShadowPartialRightRedzone(uptr addr,
ALWAYS_INLINE void FastPoisonShadow(uptr aligned_beg, uptr aligned_size,
u8 value) {
DCHECK(!value || CanPoisonMemory());
#if SANITIZER_FUCHSIA
__sanitizer_fill_shadow(aligned_beg, aligned_size, value,
common_flags()->clear_shadow_mmap_threshold);
#else
uptr shadow_beg = MEM_TO_SHADOW(aligned_beg);
uptr shadow_end = MEM_TO_SHADOW(
aligned_beg + aligned_size - SHADOW_GRANULARITY) + 1;
@ -47,10 +51,6 @@ ALWAYS_INLINE void FastPoisonShadow(uptr aligned_beg, uptr aligned_size,
// probably provide higher-level interface for these operations.
// For now, just memset on Windows.
if (value || SANITIZER_WINDOWS == 1 ||
// TODO(mcgrathr): Fuchsia doesn't allow the shadow mapping to be
// changed at all. It doesn't currently have an efficient means
// to zero a bunch of pages, but maybe we should add one.
SANITIZER_FUCHSIA == 1 ||
// RTEMS doesn't have have pages, let alone a fast way to zero
// them, so default to memset.
SANITIZER_RTEMS == 1 ||
@ -73,6 +73,7 @@ ALWAYS_INLINE void FastPoisonShadow(uptr aligned_beg, uptr aligned_size,
ReserveShadowMemoryRange(page_beg, page_end - 1, nullptr);
}
}
#endif // SANITIZER_FUCHSIA
}
ALWAYS_INLINE void FastPoisonShadowPartialRightRedzone(

7
contrib/compiler-rt/lib/asan/asan_posix.cc
View File

@ -1,9 +1,8 @@
//===-- asan_posix.cc -----------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/lib/asan/asan_preinit.cc
View File

@ -1,9 +1,8 @@
//===-- asan_preinit.cc ---------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/lib/asan/asan_premap_shadow.cc
View File

@ -1,9 +1,8 @@
//===-- asan_premap_shadow.cc ---------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/lib/asan/asan_premap_shadow.h
View File

@ -1,9 +1,8 @@
//===-- asan_mapping.h ------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

16
contrib/compiler-rt/lib/asan/asan_report.cc
View File

@ -1,9 +1,8 @@
//===-- asan_report.cc ----------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -191,7 +190,7 @@ class ScopedInErrorReport {
void ReportError(const ErrorDescription &description) {
// Can only report one error per ScopedInErrorReport.
CHECK_EQ(current_error_.kind, kErrorKindInvalid);
current_error_ = description;
internal_memcpy(&current_error_, &description, sizeof(current_error_));
}
static ErrorDescription &CurrentError() {
@ -264,6 +263,13 @@ void ReportCallocOverflow(uptr count, uptr size, BufferedStackTrace *stack) {
in_report.ReportError(error);
}
void ReportReallocArrayOverflow(uptr count, uptr size,
BufferedStackTrace *stack) {
ScopedInErrorReport in_report(/*fatal*/ true);
ErrorReallocArrayOverflow error(GetCurrentTidOrInvalid(), stack, count, size);
in_report.ReportError(error);
}
void ReportPvallocOverflow(uptr size, BufferedStackTrace *stack) {
ScopedInErrorReport in_report(/*fatal*/ true);
ErrorPvallocOverflow error(GetCurrentTidOrInvalid(), stack, size);

9
contrib/compiler-rt/lib/asan/asan_report.h
View File

@ -1,9 +1,8 @@
//===-- asan_report.h -------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -62,6 +61,8 @@ void ReportMallocUsableSizeNotOwned(uptr addr, BufferedStackTrace *stack);
void ReportSanitizerGetAllocatedSizeNotOwned(uptr addr,
BufferedStackTrace *stack);
void ReportCallocOverflow(uptr count, uptr size, BufferedStackTrace *stack);
void ReportReallocArrayOverflow(uptr count, uptr size,
BufferedStackTrace *stack);
void ReportPvallocOverflow(uptr size, BufferedStackTrace *stack);
void ReportInvalidAllocationAlignment(uptr alignment,
BufferedStackTrace *stack);

11
contrib/compiler-rt/lib/asan/asan_rtems.cc
View File

@ -1,9 +1,8 @@
//===-- asan_rtems.cc -----------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -184,8 +183,8 @@ static void ThreadStartHook(void *hook, uptr os_id) {
// Determine whether we are starting or restarting the thread.
if (status == ThreadStatusCreated)
// In lieu of AsanThread::ThreadStart.
asanThreadRegistry().StartThread(thread->tid(), os_id,
/*workerthread*/ false, nullptr);
asanThreadRegistry().StartThread(thread->tid(), os_id, ThreadType::Regular,
nullptr);
else {
// In a thread restart, a thread may resume execution at an
// arbitrary function entry point, with its stack and TLS state

20
contrib/compiler-rt/lib/asan/asan_rtl.cc
View File

@ -1,9 +1,8 @@
//===-- asan_rtl.cc -------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -598,6 +597,19 @@ void NOINLINE __asan_handle_no_return() {
curr_thread->fake_stack()->HandleNoReturn();
}
extern "C" void *__asan_extra_spill_area() {
AsanThread *t = GetCurrentThread();
CHECK(t);
return t->extra_spill_area();
}
void __asan_handle_vfork(void *sp) {
AsanThread *t = GetCurrentThread();
CHECK(t);
uptr bottom = t->stack_bottom();
PoisonShadow(bottom, (uptr)sp - bottom, 0);
}
void NOINLINE __asan_set_death_callback(void (*callback)(void)) {
SetUserDieCallback(callback);
}

7
contrib/compiler-rt/lib/asan/asan_scariness_score.h
View File

@ -1,9 +1,8 @@
//===-- asan_scariness_score.h ----------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/lib/asan/asan_shadow_setup.cc
View File

@ -1,9 +1,8 @@
//===-- asan_shadow_setup.cc ----------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

56
contrib/compiler-rt/lib/asan/asan_stack.cc
View File

@ -1,9 +1,8 @@
//===-- asan_stack.cc -----------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -27,8 +26,57 @@ u32 GetMallocContextSize() {
return atomic_load(&malloc_context_size, memory_order_acquire);
}
namespace {
// ScopedUnwinding is a scope for stacktracing member of a context
class ScopedUnwinding {
public:
explicit ScopedUnwinding(AsanThread *t) : thread(t) {
if (thread) {
can_unwind = !thread->isUnwinding();
thread->setUnwinding(true);
}
}
~ScopedUnwinding() {
if (thread)
thread->setUnwinding(false);
}
bool CanUnwind() const { return can_unwind; }
private:
AsanThread *thread = nullptr;
bool can_unwind = true;
};
} // namespace
} // namespace __asan
void __sanitizer::BufferedStackTrace::UnwindImpl(
uptr pc, uptr bp, void *context, bool request_fast, u32 max_depth) {
using namespace __asan;
size = 0;
if (UNLIKELY(!asan_inited))
return;
request_fast = StackTrace::WillUseFastUnwind(request_fast);
AsanThread *t = GetCurrentThread();
ScopedUnwinding unwind_scope(t);
if (!unwind_scope.CanUnwind())
return;
if (request_fast) {
if (t) {
Unwind(max_depth, pc, bp, nullptr, t->stack_top(), t->stack_bottom(),
true);
}
return;
}
if (SANITIZER_MIPS && t &&
!IsValidFrame(bp, t->stack_top(), t->stack_bottom()))
return;
Unwind(max_depth, pc, bp, context, 0, 0, false);
}
// ------------------ Interface -------------- {{{1
extern "C" {

47
contrib/compiler-rt/lib/asan/asan_stack.h
View File

@ -1,9 +1,8 @@
//===-- asan_stack.h --------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -27,34 +26,6 @@ static const u32 kDefaultMallocContextSize = 30;
void SetMallocContextSize(u32 size);
u32 GetMallocContextSize();
// Get the stack trace with the given pc and bp.
// The pc will be in the position 0 of the resulting stack trace.
// The bp may refer to the current frame or to the caller's frame.
ALWAYS_INLINE
void GetStackTrace(BufferedStackTrace *stack, uptr max_depth, uptr pc, uptr bp,
void *context, bool fast) {
#if SANITIZER_WINDOWS
stack->Unwind(max_depth, pc, bp, context, 0, 0, fast);
#else
AsanThread *t;
stack->size = 0;
if (LIKELY(asan_inited)) {
if ((t = GetCurrentThread()) && !t->isUnwinding()) {
uptr stack_top = t->stack_top();
uptr stack_bottom = t->stack_bottom();
ScopedUnwinding unwind_scope(t);
if (!SANITIZER_MIPS || IsValidFrame(bp, stack_top, stack_bottom)) {
stack->Unwind(max_depth, pc, bp, context, stack_top, stack_bottom,
fast);
}
} else if (!t && !fast) {
/* If GetCurrentThread() has failed, try to do slow unwind anyways. */
stack->Unwind(max_depth, pc, bp, context, 0, 0, false);
}
}
#endif // SANITIZER_WINDOWS
}
} // namespace __asan
// NOTE: A Rule of thumb is to retrieve stack trace in the interceptors
@ -71,19 +42,19 @@ void GetStackTrace(BufferedStackTrace *stack, uptr max_depth, uptr pc, uptr bp,
if (max_size > 1) stack.trace_buffer[1] = GET_CALLER_PC(); \
} \
} else { \
GetStackTrace(&stack, max_size, StackTrace::GetCurrentPc(), \
GET_CURRENT_FRAME(), 0, fast); \
stack.Unwind(StackTrace::GetCurrentPc(), \
GET_CURRENT_FRAME(), nullptr, fast, max_size); \
}
#define GET_STACK_TRACE_FATAL(pc, bp) \
BufferedStackTrace stack; \
GetStackTrace(&stack, kStackTraceMax, pc, bp, 0, \
common_flags()->fast_unwind_on_fatal)
stack.Unwind(pc, bp, nullptr, \
common_flags()->fast_unwind_on_fatal)
#define GET_STACK_TRACE_SIGNAL(sig) \
BufferedStackTrace stack; \
GetStackTrace(&stack, kStackTraceMax, (sig).pc, (sig).bp, (sig).context, \
common_flags()->fast_unwind_on_fatal)
stack.Unwind((sig).pc, (sig).bp, (sig).context, \
common_flags()->fast_unwind_on_fatal)
#define GET_STACK_TRACE_FATAL_HERE \
GET_STACK_TRACE(kStackTraceMax, common_flags()->fast_unwind_on_fatal)

7
contrib/compiler-rt/lib/asan/asan_stats.cc
View File

@ -1,9 +1,8 @@
//===-- asan_stats.cc -----------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/lib/asan/asan_stats.h
View File

@ -1,9 +1,8 @@
//===-- asan_stats.h --------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/lib/asan/asan_suppressions.cc
View File

@ -1,9 +1,8 @@
//===-- asan_suppressions.cc ----------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/lib/asan/asan_suppressions.h
View File

@ -1,9 +1,8 @@
//===-- asan_suppressions.h -------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

10
contrib/compiler-rt/lib/asan/asan_thread.cc
View File

@ -1,9 +1,8 @@
//===-- asan_thread.cc ----------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -246,8 +245,7 @@ void AsanThread::Init(const InitOptions *options) {
thread_return_t AsanThread::ThreadStart(
tid_t os_id, atomic_uintptr_t *signal_thread_is_registered) {
Init();
asanThreadRegistry().StartThread(tid(), os_id, /*workerthread*/ false,
nullptr);
asanThreadRegistry().StartThread(tid(), os_id, ThreadType::Regular, nullptr);
if (signal_thread_is_registered)
atomic_store(signal_thread_is_registered, 1, memory_order_release);

22
contrib/compiler-rt/lib/asan/asan_thread.h
View File

@ -1,9 +1,8 @@
//===-- asan_thread.h -------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -131,6 +130,8 @@ class AsanThread {
AsanThreadLocalMallocStorage &malloc_storage() { return malloc_storage_; }
AsanStats &stats() { return stats_; }
void *extra_spill_area() { return &extra_spill_area_; }
private:
// NOTE: There is no AsanThread constructor. It is allocated
// via mmap() and *must* be valid in zero-initialized state.
@ -166,18 +167,7 @@ class AsanThread {
AsanThreadLocalMallocStorage malloc_storage_;
AsanStats stats_;
bool unwinding_;
};
// ScopedUnwinding is a scope for stacktracing member of a context
class ScopedUnwinding {
public:
explicit ScopedUnwinding(AsanThread *t) : thread(t) {
t->setUnwinding(true);
}
~ScopedUnwinding() { thread->setUnwinding(false); }
private:
AsanThread *thread;
uptr extra_spill_area_;
};
// Returns a single instance of registry.

108
contrib/compiler-rt/lib/asan/asan_win.cc
View File

@ -1,9 +1,8 @@
//===-- asan_win.cc -------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -21,10 +20,10 @@
#include "asan_interceptors.h"
#include "asan_internal.h"
#include "asan_mapping.h"
#include "asan_report.h"
#include "asan_stack.h"
#include "asan_thread.h"
#include "asan_mapping.h"
#include "sanitizer_common/sanitizer_libc.h"
#include "sanitizer_common/sanitizer_mutex.h"
#include "sanitizer_common/sanitizer_win.h"
@ -78,7 +77,7 @@ static long WINAPI SEHHandler(EXCEPTION_POINTERS *info) {
}
INTERCEPTOR_WINAPI(LPTOP_LEVEL_EXCEPTION_FILTER, SetUnhandledExceptionFilter,
LPTOP_LEVEL_EXCEPTION_FILTER ExceptionFilter) {
LPTOP_LEVEL_EXCEPTION_FILTER ExceptionFilter) {
CHECK(REAL(SetUnhandledExceptionFilter));
if (ExceptionFilter == &SEHHandler)
return REAL(SetUnhandledExceptionFilter)(ExceptionFilter);
@ -105,7 +104,9 @@ INTERCEPTOR_WINAPI(void, RaiseException, void *a, void *b, void *c, void *d) {
#ifdef _WIN64
INTERCEPTOR_WINAPI(int, __C_specific_handler, void *a, void *b, void *c, void *d) { // NOLINT
INTERCEPTOR_WINAPI(EXCEPTION_DISPOSITION, __C_specific_handler,
_EXCEPTION_RECORD *a, void *b, _CONTEXT *c,
_DISPATCHER_CONTEXT *d) { // NOLINT
CHECK(REAL(__C_specific_handler));
__asan_handle_no_return();
return REAL(__C_specific_handler)(a, b, c, d);
@ -131,15 +132,14 @@ INTERCEPTOR(int, _except_handler4, void *a, void *b, void *c, void *d) {
#endif
static thread_return_t THREAD_CALLING_CONV asan_thread_start(void *arg) {
AsanThread *t = (AsanThread*)arg;
AsanThread *t = (AsanThread *)arg;
SetCurrentThread(t);
return t->ThreadStart(GetTid(), /* signal_thread_is_registered */ nullptr);
}
INTERCEPTOR_WINAPI(DWORD, CreateThread,
void* security, uptr stack_size,
DWORD (__stdcall *start_routine)(void*), void* arg,
DWORD thr_flags, void* tid) {
INTERCEPTOR_WINAPI(HANDLE, CreateThread, LPSECURITY_ATTRIBUTES security,
SIZE_T stack_size, LPTHREAD_START_ROUTINE start_routine,
void *arg, DWORD thr_flags, DWORD *tid) {
// Strict init-order checking is thread-hostile.
if (flags()->strict_init_order)
StopInitOrderChecking();
@ -149,9 +149,9 @@ INTERCEPTOR_WINAPI(DWORD, CreateThread,
bool detached = false; // FIXME: how can we determine it on Windows?
u32 current_tid = GetCurrentTidOrInvalid();
AsanThread *t =
AsanThread::Create(start_routine, arg, current_tid, &stack, detached);
return REAL(CreateThread)(security, stack_size,
asan_thread_start, t, thr_flags, tid);
AsanThread::Create(start_routine, arg, current_tid, &stack, detached);
return REAL(CreateThread)(security, stack_size, asan_thread_start, t,
thr_flags, tid);
}
// }}}
@ -162,10 +162,9 @@ void InitializePlatformInterceptors() {
// The interceptors were not designed to be removable, so we have to keep this
// module alive for the life of the process.
HMODULE pinned;
CHECK(GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS |
GET_MODULE_HANDLE_EX_FLAG_PIN,
(LPCWSTR)&InitializePlatformInterceptors,
&pinned));
CHECK(GetModuleHandleExW(
GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_PIN,
(LPCWSTR)&InitializePlatformInterceptors, &pinned));
ASAN_INTERCEPT_FUNC(CreateThread);
ASAN_INTERCEPT_FUNC(SetUnhandledExceptionFilter);
@ -197,6 +196,30 @@ static bool tsd_key_inited = false;
static __declspec(thread) void *fake_tsd = 0;
// https://docs.microsoft.com/en-us/windows/desktop/api/winternl/ns-winternl-_teb
// "[This structure may be altered in future versions of Windows. Applications
// should use the alternate functions listed in this topic.]"
typedef struct _TEB {
PVOID Reserved1[12];
// PVOID ThreadLocalStoragePointer; is here, at the last field in Reserved1.
PVOID ProcessEnvironmentBlock;
PVOID Reserved2[399];
BYTE Reserved3[1952];
PVOID TlsSlots[64];
BYTE Reserved4[8];
PVOID Reserved5[26];
PVOID ReservedForOle;
PVOID Reserved6[4];
PVOID TlsExpansionSlots;
} TEB, *PTEB;
constexpr size_t TEB_RESERVED_FIELDS_THREAD_LOCAL_STORAGE_OFFSET = 11;
BOOL IsTlsInitialized() {
PTEB teb = (PTEB)NtCurrentTeb();
return teb->Reserved1[TEB_RESERVED_FIELDS_THREAD_LOCAL_STORAGE_OFFSET] !=
nullptr;
}
void AsanTSDInit(void (*destructor)(void *tsd)) {
// FIXME: we're ignoring the destructor for now.
tsd_key_inited = true;
@ -204,7 +227,7 @@ void AsanTSDInit(void (*destructor)(void *tsd)) {
void *AsanTSDGet() {
CHECK(tsd_key_inited);
return fake_tsd;
return IsTlsInitialized() ? fake_tsd : nullptr;
}
void AsanTSDSet(void *tsd) {
@ -212,9 +235,7 @@ void AsanTSDSet(void *tsd) {
fake_tsd = tsd;
}
void PlatformTSDDtor(void *tsd) {
AsanThread::TSDDtor(tsd);
}
void PlatformTSDDtor(void *tsd) { AsanThread::TSDDtor(tsd); }
// }}}
// ---------------------- Various stuff ---------------- {{{
@ -245,9 +266,7 @@ void ReadContextStack(void *context, uptr *stack, uptr *ssize) {
UNIMPLEMENTED();
}
void AsanOnDeadlySignal(int, void *siginfo, void *context) {
UNIMPLEMENTED();
}
void AsanOnDeadlySignal(int, void *siginfo, void *context) { UNIMPLEMENTED(); }
#if SANITIZER_WINDOWS64
// Exception handler for dealing with shadow memory.
@ -256,7 +275,9 @@ ShadowExceptionHandler(PEXCEPTION_POINTERS exception_pointers) {
uptr page_size = GetPageSizeCached();
// Only handle access violations.
if (exception_pointers->ExceptionRecord->ExceptionCode !=
EXCEPTION_ACCESS_VIOLATION) {
EXCEPTION_ACCESS_VIOLATION ||
exception_pointers->ExceptionRecord->NumberParameters < 2) {
__asan_handle_no_return();
return EXCEPTION_CONTINUE_SEARCH;
}
@ -265,7 +286,10 @@ ShadowExceptionHandler(PEXCEPTION_POINTERS exception_pointers) {
(uptr)(exception_pointers->ExceptionRecord->ExceptionInformation[1]);
// Check valid shadow range.
if (!AddrIsInShadow(addr)) return EXCEPTION_CONTINUE_SEARCH;
if (!AddrIsInShadow(addr)) {
__asan_handle_no_return();
return EXCEPTION_CONTINUE_SEARCH;
}
// This is an access violation while trying to read from the shadow. Commit
// the relevant page and let execution continue.
@ -276,7 +300,8 @@ ShadowExceptionHandler(PEXCEPTION_POINTERS exception_pointers) {
// Commit the page.
uptr result =
(uptr)::VirtualAlloc((LPVOID)page, page_size, MEM_COMMIT, PAGE_READWRITE);
if (result != page) return EXCEPTION_CONTINUE_SEARCH;
if (result != page)
return EXCEPTION_CONTINUE_SEARCH;
// The page mapping succeeded, so continue execution as usual.
return EXCEPTION_CONTINUE_EXECUTION;
@ -293,7 +318,7 @@ void InitializePlatformExceptionHandlers() {
}
bool IsSystemHeapAddress(uptr addr) {
return ::HeapValidate(GetProcessHeap(), 0, (void*)addr) != FALSE;
return ::HeapValidate(GetProcessHeap(), 0, (void *)addr) != FALSE;
}
// We want to install our own exception handler (EH) to print helpful reports
@ -312,8 +337,7 @@ bool IsSystemHeapAddress(uptr addr) {
// asan_dynamic_runtime_thunk.lib to all the modules, thus __asan_set_seh_filter
// will be called for each instrumented module. This ensures that at least one
// __asan_set_seh_filter call happens after the .exe module CRT is initialized.
extern "C" SANITIZER_INTERFACE_ATTRIBUTE
int __asan_set_seh_filter() {
extern "C" SANITIZER_INTERFACE_ATTRIBUTE int __asan_set_seh_filter() {
// We should only store the previous handler if it's not our own handler in
// order to avoid loops in the EH chain.
auto prev_seh_handler = SetUnhandledExceptionFilter(SEHHandler);
@ -347,14 +371,28 @@ __declspec(allocate(".CRT$XCAB")) int (*__intercept_seh)() =
// which run before the CRT. Users also add code to .CRT$XLC, so it's important
// to run our initializers first.
static void NTAPI asan_thread_init(void *module, DWORD reason, void *reserved) {
if (reason == DLL_PROCESS_ATTACH) __asan_init();
if (reason == DLL_PROCESS_ATTACH)
__asan_init();
}
#pragma section(".CRT$XLAB", long, read) // NOLINT
__declspec(allocate(".CRT$XLAB")) void (NTAPI *__asan_tls_init)(void *,
unsigned long, void *) = asan_thread_init;
__declspec(allocate(".CRT$XLAB")) void(NTAPI *__asan_tls_init)(
void *, unsigned long, void *) = asan_thread_init;
#endif
static void NTAPI asan_thread_exit(void *module, DWORD reason, void *reserved) {
if (reason == DLL_THREAD_DETACH) {
// Unpoison the thread's stack because the memory may be re-used.
NT_TIB *tib = (NT_TIB *)NtCurrentTeb();
uptr stackSize = (uptr)tib->StackBase - (uptr)tib->StackLimit;
__asan_unpoison_memory_region(tib->StackLimit, stackSize);
}
}
#pragma section(".CRT$XLY", long, read) // NOLINT
__declspec(allocate(".CRT$XLY")) void(NTAPI *__asan_tls_exit)(
void *, unsigned long, void *) = asan_thread_exit;
WIN_FORCE_LINK(__asan_dso_reg_hook)
// }}}

7
contrib/compiler-rt/lib/asan/asan_win_dll_thunk.cc
View File

@ -1,9 +1,8 @@
//===-- asan_win_dll_thunk.cc ---------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/lib/asan/asan_win_dynamic_runtime_thunk.cc
View File

@ -1,9 +1,8 @@
//===-- asan_win_dynamic_runtime_thunk.cc ---------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//

7
contrib/compiler-rt/lib/asan/asan_win_weak_interception.cc
View File

@ -1,9 +1,8 @@
//===-- asan_win_weak_interception.cc -------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// This module should be included in Address Sanitizer when it is implemented as

5
contrib/compiler-rt/lib/builtins/aarch64/chkstk.S
View File

@ -1,5 +1,6 @@
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include "../assembly.h"

42
contrib/compiler-rt/lib/builtins/absvdi2.c
View File

@ -1,29 +1,25 @@
/*===-- absvdi2.c - Implement __absvdi2 -----------------------------------===
*
* The LLVM Compiler Infrastructure
*
* This file is dual licensed under the MIT and the University of Illinois Open
* Source Licenses. See LICENSE.TXT for details.
*
*===----------------------------------------------------------------------===
*
* This file implements __absvdi2 for the compiler_rt library.
*
*===----------------------------------------------------------------------===
*/
//===-- absvdi2.c - Implement __absvdi2 -----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements __absvdi2 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include "int_lib.h"
/* Returns: absolute value */
// Returns: absolute value
/* Effects: aborts if abs(x) < 0 */
// Effects: aborts if abs(x) < 0
COMPILER_RT_ABI di_int
__absvdi2(di_int a)
{
const int N = (int)(sizeof(di_int) * CHAR_BIT);
if (a == ((di_int)1 << (N-1)))
compilerrt_abort();
const di_int t = a >> (N - 1);
return (a ^ t) - t;
COMPILER_RT_ABI di_int __absvdi2(di_int a) {
const int N = (int)(sizeof(di_int) * CHAR_BIT);
if (a == ((di_int)1 << (N - 1)))
compilerrt_abort();
const di_int t = a >> (N - 1);
return (a ^ t) - t;
}

42
contrib/compiler-rt/lib/builtins/absvsi2.c
View File

@ -1,29 +1,25 @@
/* ===-- absvsi2.c - Implement __absvsi2 -----------------------------------===
*
* The LLVM Compiler Infrastructure
*
* This file is dual licensed under the MIT and the University of Illinois Open
* Source Licenses. See LICENSE.TXT for details.
*
* ===----------------------------------------------------------------------===
*
* This file implements __absvsi2 for the compiler_rt library.
*
* ===----------------------------------------------------------------------===
*/
//===-- absvsi2.c - Implement __absvsi2 -----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements __absvsi2 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include "int_lib.h"
/* Returns: absolute value */
// Returns: absolute value
/* Effects: aborts if abs(x) < 0 */
// Effects: aborts if abs(x) < 0
COMPILER_RT_ABI si_int
__absvsi2(si_int a)
{
const int N = (int)(sizeof(si_int) * CHAR_BIT);
if (a == (1 << (N-1)))
compilerrt_abort();
const si_int t = a >> (N - 1);
return (a ^ t) - t;
COMPILER_RT_ABI si_int __absvsi2(si_int a) {
const int N = (int)(sizeof(si_int) * CHAR_BIT);
if (a == (1 << (N - 1)))
compilerrt_abort();
const si_int t = a >> (N - 1);
return (a ^ t) - t;
}

45
contrib/compiler-rt/lib/builtins/absvti2.c
View File

@ -1,34 +1,29 @@
/* ===-- absvti2.c - Implement __absvdi2 -----------------------------------===
*
* The LLVM Compiler Infrastructure
*
* This file is dual licensed under the MIT and the University of Illinois Open
* Source Licenses. See LICENSE.TXT for details.
*
* ===----------------------------------------------------------------------===
*
* This file implements __absvti2 for the compiler_rt library.
*
* ===----------------------------------------------------------------------===
*/
//===-- absvti2.c - Implement __absvdi2 -----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements __absvti2 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include "int_lib.h"
#ifdef CRT_HAS_128BIT
/* Returns: absolute value */
// Returns: absolute value
/* Effects: aborts if abs(x) < 0 */
// Effects: aborts if abs(x) < 0
COMPILER_RT_ABI ti_int
__absvti2(ti_int a)
{
const int N = (int)(sizeof(ti_int) * CHAR_BIT);
if (a == ((ti_int)1 << (N-1)))
compilerrt_abort();
const ti_int s = a >> (N - 1);
return (a ^ s) - s;
COMPILER_RT_ABI ti_int __absvti2(ti_int a) {
const int N = (int)(sizeof(ti_int) * CHAR_BIT);
if (a == ((ti_int)1 << (N - 1)))
compilerrt_abort();
const ti_int s = a >> (N - 1);
return (a ^ s) - s;
}
#endif /* CRT_HAS_128BIT */
#endif // CRT_HAS_128BIT

17
contrib/compiler-rt/lib/builtins/adddf3.c
View File

@ -1,9 +1,8 @@
//===-- lib/adddf3.c - Double-precision addition ------------------*- C -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -15,16 +14,12 @@
#define DOUBLE_PRECISION
#include "fp_add_impl.inc"
COMPILER_RT_ABI double __adddf3(double a, double b){
return __addXf3__(a, b);
}
COMPILER_RT_ABI double __adddf3(double a, double b) { return __addXf3__(a, b); }
#if defined(__ARM_EABI__)
#if defined(COMPILER_RT_ARMHF_TARGET)
AEABI_RTABI double __aeabi_dadd(double a, double b) {
return __adddf3(a, b);
}
AEABI_RTABI double __aeabi_dadd(double a, double b) { return __adddf3(a, b); }
#else
AEABI_RTABI double __aeabi_dadd(double a, double b) COMPILER_RT_ALIAS(__adddf3);
COMPILER_RT_ALIAS(__adddf3, __aeabi_dadd)
#endif
#endif

17
contrib/compiler-rt/lib/builtins/addsf3.c
View File

@ -1,9 +1,8 @@
//===-- lib/addsf3.c - Single-precision addition ------------------*- C -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -15,16 +14,12 @@
#define SINGLE_PRECISION
#include "fp_add_impl.inc"
COMPILER_RT_ABI float __addsf3(float a, float b) {
return __addXf3__(a, b);
}
COMPILER_RT_ABI float __addsf3(float a, float b) { return __addXf3__(a, b); }
#if defined(__ARM_EABI__)
#if defined(COMPILER_RT_ARMHF_TARGET)
AEABI_RTABI float __aeabi_fadd(float a, float b) {
return __addsf3(a, b);
}
AEABI_RTABI float __aeabi_fadd(float a, float b) { return __addsf3(a, b); }
#else
AEABI_RTABI float __aeabi_fadd(float a, float b) COMPILER_RT_ALIAS(__addsf3);
COMPILER_RT_ALIAS(__addsf3, __aeabi_fadd)
#endif
#endif

11
contrib/compiler-rt/lib/builtins/addtf3.c
View File

@ -1,9 +1,8 @@
//===-- lib/addtf3.c - Quad-precision addition --------------------*- C -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@ -18,8 +17,8 @@
#if defined(CRT_HAS_128BIT) && defined(CRT_LDBL_128BIT)
#include "fp_add_impl.inc"
COMPILER_RT_ABI long double __addtf3(long double a, long double b){
return __addXf3__(a, b);
COMPILER_RT_ABI long double __addtf3(long double a, long double b) {
return __addXf3__(a, b);
}
#endif

53
contrib/compiler-rt/lib/builtins/addvdi3.c
View File

@ -1,36 +1,29 @@
/* ===-- addvdi3.c - Implement __addvdi3 -----------------------------------===
*
* The LLVM Compiler Infrastructure
*
* This file is dual licensed under the MIT and the University of Illinois Open
* Source Licenses. See LICENSE.TXT for details.
*
* ===----------------------------------------------------------------------===
*
* This file implements __addvdi3 for the compiler_rt library.
*
* ===----------------------------------------------------------------------===
*/
//===-- addvdi3.c - Implement __addvdi3 -----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements __addvdi3 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include "int_lib.h"
/* Returns: a + b */
// Returns: a + b
/* Effects: aborts if a + b overflows */
// Effects: aborts if a + b overflows
COMPILER_RT_ABI di_int
__addvdi3(di_int a, di_int b)
{
di_int s = (du_int) a + (du_int) b;
if (b >= 0)
{
if (s < a)
compilerrt_abort();
}
else
{
if (s >= a)
compilerrt_abort();
}
return s;
COMPILER_RT_ABI di_int __addvdi3(di_int a, di_int b) {
di_int s = (du_int)a + (du_int)b;
if (b >= 0) {
if (s < a)
compilerrt_abort();
} else {
if (s >= a)
compilerrt_abort();
}
return s;
}

53
contrib/compiler-rt/lib/builtins/addvsi3.c
View File

@ -1,36 +1,29 @@
/* ===-- addvsi3.c - Implement __addvsi3 -----------------------------------===
*
* The LLVM Compiler Infrastructure
*
* This file is dual licensed under the MIT and the University of Illinois Open
* Source Licenses. See LICENSE.TXT for details.
*
* ===----------------------------------------------------------------------===
*
* This file implements __addvsi3 for the compiler_rt library.
*
* ===----------------------------------------------------------------------===
*/
//===-- addvsi3.c - Implement __addvsi3 -----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements __addvsi3 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include "int_lib.h"
/* Returns: a + b */
// Returns: a + b
/* Effects: aborts if a + b overflows */
// Effects: aborts if a + b overflows
COMPILER_RT_ABI si_int
__addvsi3(si_int a, si_int b)
{
si_int s = (su_int) a + (su_int) b;
if (b >= 0)
{
if (s < a)
compilerrt_abort();
}
else
{
if (s >= a)
compilerrt_abort();
}
return s;
COMPILER_RT_ABI si_int __addvsi3(si_int a, si_int b) {
si_int s = (su_int)a + (su_int)b;
if (b >= 0) {
if (s < a)
compilerrt_abort();
} else {
if (s >= a)
compilerrt_abort();
}
return s;
}

55
contrib/compiler-rt/lib/builtins/addvti3.c
View File

@ -1,40 +1,33 @@
/* ===-- addvti3.c - Implement __addvti3 -----------------------------------===
*
* The LLVM Compiler Infrastructure
*
* This file is dual licensed under the MIT and the University of Illinois Open
* Source Licenses. See LICENSE.TXT for details.
*
* ===----------------------------------------------------------------------===
*
* This file implements __addvti3 for the compiler_rt library.
*
* ===----------------------------------------------------------------------===
*/
//===-- addvti3.c - Implement __addvti3 -----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements __addvti3 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include "int_lib.h"
#ifdef CRT_HAS_128BIT
/* Returns: a + b */
// Returns: a + b
/* Effects: aborts if a + b overflows */
// Effects: aborts if a + b overflows
COMPILER_RT_ABI ti_int
__addvti3(ti_int a, ti_int b)
{
ti_int s = (tu_int) a + (tu_int) b;
if (b >= 0)
{
if (s < a)
compilerrt_abort();
}
else
{
if (s >= a)
compilerrt_abort();
}
return s;
COMPILER_RT_ABI ti_int __addvti3(ti_int a, ti_int b) {
ti_int s = (tu_int)a + (tu_int)b;
if (b >= 0) {
if (s < a)
compilerrt_abort();
} else {
if (s >= a)
compilerrt_abort();
}
return s;
}
#endif /* CRT_HAS_128BIT */
#endif // CRT_HAS_128BIT

119
contrib/compiler-rt/lib/builtins/apple_versioning.c
View File

@ -1,47 +1,42 @@
/* ===-- apple_versioning.c - Adds versioning symbols for ld ---------------===
*
* The LLVM Compiler Infrastructure
*
* This file is dual licensed under the MIT and the University of Illinois Open
* Source Licenses. See LICENSE.TXT for details.
*
* ===----------------------------------------------------------------------===
*/
//===-- apple_versioning.c - Adds versioning symbols for ld ---------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#if __APPLE__
#include <Availability.h>
#if __IPHONE_OS_VERSION_MIN_REQUIRED
#define NOT_HERE_BEFORE_10_6(sym)
#define NOT_HERE_IN_10_8_AND_EARLIER(sym) \
extern const char sym##_tmp61 __asm("$ld$hide$os6.1$_" #sym ); \
__attribute__((visibility("default"))) const char sym##_tmp61 = 0; \
extern const char sym##_tmp60 __asm("$ld$hide$os6.0$_" #sym ); \
__attribute__((visibility("default"))) const char sym##_tmp60 = 0; \
extern const char sym##_tmp51 __asm("$ld$hide$os5.1$_" #sym ); \
__attribute__((visibility("default"))) const char sym##_tmp51 = 0; \
extern const char sym##_tmp50 __asm("$ld$hide$os5.0$_" #sym ); \
__attribute__((visibility("default"))) const char sym##_tmp50 = 0;
#else
#define NOT_HERE_BEFORE_10_6(sym) \
extern const char sym##_tmp4 __asm("$ld$hide$os10.4$_" #sym ); \
__attribute__((visibility("default"))) const char sym##_tmp4 = 0; \
extern const char sym##_tmp5 __asm("$ld$hide$os10.5$_" #sym ); \
__attribute__((visibility("default"))) const char sym##_tmp5 = 0;
#define NOT_HERE_IN_10_8_AND_EARLIER(sym) \
extern const char sym##_tmp8 __asm("$ld$hide$os10.8$_" #sym ); \
__attribute__((visibility("default"))) const char sym##_tmp8 = 0; \
extern const char sym##_tmp7 __asm("$ld$hide$os10.7$_" #sym ); \
__attribute__((visibility("default"))) const char sym##_tmp7 = 0; \
extern const char sym##_tmp6 __asm("$ld$hide$os10.6$_" #sym ); \
__attribute__((visibility("default"))) const char sym##_tmp6 = 0;
#endif
#include <Availability.h>
#if __IPHONE_OS_VERSION_MIN_REQUIRED
#define NOT_HERE_BEFORE_10_6(sym)
#define NOT_HERE_IN_10_8_AND_EARLIER(sym) \
extern const char sym##_tmp61 __asm("$ld$hide$os6.1$_" #sym); \
__attribute__((visibility("default"))) const char sym##_tmp61 = 0; \
extern const char sym##_tmp60 __asm("$ld$hide$os6.0$_" #sym); \
__attribute__((visibility("default"))) const char sym##_tmp60 = 0; \
extern const char sym##_tmp51 __asm("$ld$hide$os5.1$_" #sym); \
__attribute__((visibility("default"))) const char sym##_tmp51 = 0; \
extern const char sym##_tmp50 __asm("$ld$hide$os5.0$_" #sym); \
__attribute__((visibility("default"))) const char sym##_tmp50 = 0;
#else
#define NOT_HERE_BEFORE_10_6(sym) \
extern const char sym##_tmp4 __asm("$ld$hide$os10.4$_" #sym); \
__attribute__((visibility("default"))) const char sym##_tmp4 = 0; \
extern const char sym##_tmp5 __asm("$ld$hide$os10.5$_" #sym); \
__attribute__((visibility("default"))) const char sym##_tmp5 = 0;
#define NOT_HERE_IN_10_8_AND_EARLIER(sym) \
extern const char sym##_tmp8 __asm("$ld$hide$os10.8$_" #sym); \
__attribute__((visibility("default"))) const char sym##_tmp8 = 0; \
extern const char sym##_tmp7 __asm("$ld$hide$os10.7$_" #sym); \
__attribute__((visibility("default"))) const char sym##_tmp7 = 0; \
extern const char sym##_tmp6 __asm("$ld$hide$os10.6$_" #sym); \
__attribute__((visibility("default"))) const char sym##_tmp6 = 0;
#endif
/* Symbols in libSystem.dylib in 10.6 and later,
* but are in libgcc_s.dylib in earlier versions
*/
// Symbols in libSystem.dylib in 10.6 and later,
// but are in libgcc_s.dylib in earlier versions
NOT_HERE_BEFORE_10_6(__absvdi2)
NOT_HERE_BEFORE_10_6(__absvsi2)
@ -143,14 +138,13 @@ NOT_HERE_BEFORE_10_6(__udivti3)
NOT_HERE_BEFORE_10_6(__umoddi3)
NOT_HERE_BEFORE_10_6(__umodti3)
#if __ppc__
NOT_HERE_BEFORE_10_6(__gcc_qadd)
NOT_HERE_BEFORE_10_6(__gcc_qdiv)
NOT_HERE_BEFORE_10_6(__gcc_qmul)
NOT_HERE_BEFORE_10_6(__gcc_qsub)
NOT_HERE_BEFORE_10_6(__trampoline_setup)
#endif /* __ppc__ */
#endif // __ppc__
NOT_HERE_IN_10_8_AND_EARLIER(__atomic_compare_exchange)
NOT_HERE_IN_10_8_AND_EARLIER(__atomic_compare_exchange_1)
@ -201,24 +195,23 @@ NOT_HERE_IN_10_8_AND_EARLIER(__atomic_store_2)
NOT_HERE_IN_10_8_AND_EARLIER(__atomic_store_4)
NOT_HERE_IN_10_8_AND_EARLIER(__atomic_store_8)
#if __arm__ && __DYNAMIC__
#define NOT_HERE_UNTIL_AFTER_4_3(sym) \
extern const char sym##_tmp1 __asm("$ld$hide$os3.0$_" #sym ); \
__attribute__((visibility("default"))) const char sym##_tmp1 = 0; \
extern const char sym##_tmp2 __asm("$ld$hide$os3.1$_" #sym ); \
__attribute__((visibility("default"))) const char sym##_tmp2 = 0; \
extern const char sym##_tmp3 __asm("$ld$hide$os3.2$_" #sym ); \
__attribute__((visibility("default"))) const char sym##_tmp3 = 0; \
extern const char sym##_tmp4 __asm("$ld$hide$os4.0$_" #sym ); \
__attribute__((visibility("default"))) const char sym##_tmp4 = 0; \
extern const char sym##_tmp5 __asm("$ld$hide$os4.1$_" #sym ); \
__attribute__((visibility("default"))) const char sym##_tmp5 = 0; \
extern const char sym##_tmp6 __asm("$ld$hide$os4.2$_" #sym ); \
__attribute__((visibility("default"))) const char sym##_tmp6 = 0; \
extern const char sym##_tmp7 __asm("$ld$hide$os4.3$_" #sym ); \
__attribute__((visibility("default"))) const char sym##_tmp7 = 0;
#define NOT_HERE_UNTIL_AFTER_4_3(sym) \
extern const char sym##_tmp1 __asm("$ld$hide$os3.0$_" #sym); \
__attribute__((visibility("default"))) const char sym##_tmp1 = 0; \
extern const char sym##_tmp2 __asm("$ld$hide$os3.1$_" #sym); \
__attribute__((visibility("default"))) const char sym##_tmp2 = 0; \
extern const char sym##_tmp3 __asm("$ld$hide$os3.2$_" #sym); \
__attribute__((visibility("default"))) const char sym##_tmp3 = 0; \
extern const char sym##_tmp4 __asm("$ld$hide$os4.0$_" #sym); \
__attribute__((visibility("default"))) const char sym##_tmp4 = 0; \
extern const char sym##_tmp5 __asm("$ld$hide$os4.1$_" #sym); \
__attribute__((visibility("default"))) const char sym##_tmp5 = 0; \
extern const char sym##_tmp6 __asm("$ld$hide$os4.2$_" #sym); \
__attribute__((visibility("default"))) const char sym##_tmp6 = 0; \
extern const char sym##_tmp7 __asm("$ld$hide$os4.3$_" #sym); \
__attribute__((visibility("default"))) const char sym##_tmp7 = 0;
NOT_HERE_UNTIL_AFTER_4_3(__absvdi2)
NOT_HERE_UNTIL_AFTER_4_3(__absvsi2)
NOT_HERE_UNTIL_AFTER_4_3(__adddf3)
@ -339,12 +332,8 @@ NOT_HERE_UNTIL_AFTER_4_3(__divmodsi4)
NOT_HERE_UNTIL_AFTER_4_3(__udivmodsi4)
#endif // __arm__ && __DYNAMIC__
#else /* !__APPLE__ */
#else // !__APPLE__
extern int avoid_empty_file;
#endif /* !__APPLE__*/
#endif // !__APPLE__

12
contrib/compiler-rt/lib/builtins/arm/adddf3vfp.S
View File

@ -1,20 +1,18 @@
//===-- adddf3vfp.S - Implement adddf3vfp ---------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "../assembly.h"
//
// double __adddf3vfp(double a, double b) { return a + b; }
//
// Adds two double precision floating point numbers using the Darwin
// calling convention where double arguments are passsed in GPR pairs
//
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__adddf3vfp)
@ -23,7 +21,7 @@ DEFINE_COMPILERRT_FUNCTION(__adddf3vfp)
#else
vmov d6, r0, r1 // move first param from r0/r1 pair into d6
vmov d7, r2, r3 // move second param from r2/r3 pair into d7
vadd.f64 d6, d6, d7
vadd.f64 d6, d6, d7
vmov r0, r1, d6 // move result back to r0/r1 pair
#endif
bx lr

37
contrib/compiler-rt/lib/builtins/arm/addsf3.S
View File

@ -1,17 +1,16 @@
/*===-- addsf3.S - Adds two single precision floating pointer numbers-----===//
*
* The LLVM Compiler Infrastructure
*
* This file is dual licensed under the MIT and the University of Illinois Open
* Source Licenses. See LICENSE.TXT for details.
*
*===----------------------------------------------------------------------===//
*
* This file implements the __addsf3 (single precision floating pointer number
* addition with the IEEE-754 default rounding (to nearest, ties to even)
* function for the ARM Thumb1 ISA.
*
*===----------------------------------------------------------------------===*/
//===-- addsf3.S - Adds two single precision floating pointer numbers-----===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements the __addsf3 (single precision floating pointer number
// addition with the IEEE-754 default rounding (to nearest, ties to even)
// function for the ARM Thumb1 ISA.
//
//===----------------------------------------------------------------------===//
#include "../assembly.h"
#define significandBits 23
@ -29,9 +28,9 @@ DEFINE_COMPILERRT_THUMB_FUNCTION(__addsf3)
// Get the absolute value of a and b.
lsls r2, r0, #1
lsls r3, r1, #1
lsrs r2, r2, #1 /* aAbs */
lsrs r2, r2, #1 // aAbs
beq LOCAL_LABEL(a_zero_nan_inf)
lsrs r3, r3, #1 /* bAbs */
lsrs r3, r3, #1 // bAbs
beq LOCAL_LABEL(zero_nan_inf)
// Detect if a or b is infinity or Nan.
@ -55,9 +54,9 @@ LOCAL_LABEL(no_swap):
// Get the significands and shift them to give us round, guard and sticky.
lsls r4, r0, #(typeWidth - significandBits)
lsrs r4, r4, #(typeWidth - significandBits - 3) /* aSignificand << 3 */
lsrs r4, r4, #(typeWidth - significandBits - 3) // aSignificand << 3
lsls r5, r1, #(typeWidth - significandBits)
lsrs r5, r5, #(typeWidth - significandBits - 3) /* bSignificand << 3 */
lsrs r5, r5, #(typeWidth - significandBits - 3) // bSignificand << 3
// Get the implicitBit.
movs r6, #1
@ -199,7 +198,7 @@ LOCAL_LABEL(do_substraction):
beq 1f
movs r7, #1
1:
lsrs r4, r6 /* aSignificand >> shift */
lsrs r4, r6 // aSignificand >> shift
orrs r4, r7
b LOCAL_LABEL(form_result)

7
contrib/compiler-rt/lib/builtins/arm/addsf3vfp.S
View File

@ -1,9 +1,8 @@
//===-- addsf3vfp.S - Implement addsf3vfp ---------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

7
contrib/compiler-rt/lib/builtins/arm/aeabi_cdcmp.S
View File

@ -1,9 +1,8 @@
//===-- aeabi_cdcmp.S - EABI cdcmp* implementation ------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

15
contrib/compiler-rt/lib/builtins/arm/aeabi_cdcmpeq_check_nan.c
View File

@ -1,16 +1,15 @@
//===-- lib/arm/aeabi_cdcmpeq_helper.c - Helper for cdcmpeq ---------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include <stdint.h>
#include "../int_lib.h"
#include <stdint.h>
AEABI_RTABI __attribute__((visibility("hidden")))
int __aeabi_cdcmpeq_check_nan(double a, double b) {
return __builtin_isnan(a) || __builtin_isnan(b);
AEABI_RTABI __attribute__((visibility("hidden"))) int
__aeabi_cdcmpeq_check_nan(double a, double b) {
return __builtin_isnan(a) || __builtin_isnan(b);
}

7
contrib/compiler-rt/lib/builtins/arm/aeabi_cfcmp.S
View File

@ -1,9 +1,8 @@
//===-- aeabi_cfcmp.S - EABI cfcmp* implementation ------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

15
contrib/compiler-rt/lib/builtins/arm/aeabi_cfcmpeq_check_nan.c
View File

@ -1,16 +1,15 @@
//===-- lib/arm/aeabi_cfcmpeq_helper.c - Helper for cdcmpeq ---------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include <stdint.h>
#include "../int_lib.h"
#include <stdint.h>
AEABI_RTABI __attribute__((visibility("hidden")))
int __aeabi_cfcmpeq_check_nan(float a, float b) {
return __builtin_isnan(a) || __builtin_isnan(b);
AEABI_RTABI __attribute__((visibility("hidden"))) int
__aeabi_cfcmpeq_check_nan(float a, float b) {
return __builtin_isnan(a) || __builtin_isnan(b);
}

7
contrib/compiler-rt/lib/builtins/arm/aeabi_dcmp.S
View File

@ -1,9 +1,8 @@
//===-- aeabi_dcmp.S - EABI dcmp* implementation ---------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

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