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Vendor import of compiler-rt trunk r338536:

Browse Source 
https://llvm.org/svn/llvm-project/compiler-rt/trunk@338536
This commit is contained in:
Dimitry Andric 2018-08-02 17:33:19 +00:00
parent 93c1b73a09
commit 005b7ed8f7
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/vendor/compiler-rt/dist/; revision=337141
svn path=/vendor/compiler-rt/compiler-rt-trunk-r338536/; revision=337142; tag=vendor/compiler-rt/compiler-rt-trunk-r338536
35 changed files with 566 additions and 75 deletions
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2
lib/asan/asan_mapping.h
View File

@ -122,7 +122,7 @@
// || `[0x400000000000, 0x47ffffffffff]` || LowShadow ||
// || `[0x000000000000, 0x3fffffffffff]` || LowMem ||
//
// Shadow mapping on NerBSD/i386 with SHADOW_OFFSET == 0x40000000:
// Shadow mapping on NetBSD/i386 with SHADOW_OFFSET == 0x40000000:
// || `[0x60000000, 0xfffff000]` || HighMem ||
// || `[0x4c000000, 0x5fffffff]` || HighShadow ||
// || `[0x48000000, 0x4bffffff]` || ShadowGap ||

2
lib/asan/tests/asan_test.cc
View File

@ -963,7 +963,7 @@ TEST(AddressSanitizer, ThreadNamesTest) {
#if ASAN_NEEDS_SEGV
TEST(AddressSanitizer, ShadowGapTest) {
#if SANITIZER_WORDSIZE == 32
char *addr = (char*)0x22000000;
char *addr = (char*)0x23000000;
#else
# if defined(__powerpc64__)
char *addr = (char*)0x024000800000;

9
lib/builtins/CMakeLists.txt
View File

@ -567,6 +567,15 @@ else ()
set(_arch "arm")
endif()
# For ARM archs, exclude any VFP builtins if VFP is not supported
if (${arch} MATCHES "^(arm|armhf|armv7|armv7s|armv7k|armv7m|armv7em)$")
string(REPLACE ";" " " _TARGET_${arch}_CFLAGS "${TARGET_${arch}_CFLAGS}")
check_compile_definition(__VFP_FP__ "${CMAKE_C_FLAGS} ${_TARGET_${arch}_CFLAGS}" COMPILER_RT_HAS_${arch}_VFP)
if(NOT COMPILER_RT_HAS_${arch}_VFP)
list(REMOVE_ITEM ${arch}_SOURCES ${arm_Thumb1_VFPv2_SOURCES} ${arm_Thumb1_SjLj_EH_SOURCES})
endif()
endif()
# Filter out generic versions of routines that are re-implemented in
# architecture specific manner. This prevents multiple definitions of the
# same symbols, making the symbol selection non-deterministic.

11
lib/profile/InstrProfilingUtil.c
View File

@ -35,6 +35,8 @@
#include "InstrProfiling.h"
#include "InstrProfilingUtil.h"
COMPILER_RT_WEAK unsigned lprofDirMode = 0755;
COMPILER_RT_VISIBILITY
void __llvm_profile_recursive_mkdir(char *path) {
int i;
@ -47,12 +49,19 @@ void __llvm_profile_recursive_mkdir(char *path) {
#ifdef _WIN32
_mkdir(path);
#else
mkdir(path, 0755); /* Some of these will fail, ignore it. */
/* Some of these will fail, ignore it. */
mkdir(path, __llvm_profile_get_dir_mode());
#endif
path[i] = save;
}
}
COMPILER_RT_VISIBILITY
void __llvm_profile_set_dir_mode(unsigned Mode) { lprofDirMode = Mode; }
COMPILER_RT_VISIBILITY
unsigned __llvm_profile_get_dir_mode(void) { return lprofDirMode; }
#if COMPILER_RT_HAS_ATOMICS != 1
COMPILER_RT_VISIBILITY
uint32_t lprofBoolCmpXchg(void **Ptr, void *OldV, void *NewV) {

6
lib/profile/InstrProfilingUtil.h
View File

@ -16,6 +16,12 @@
/*! \brief Create a directory tree. */
void __llvm_profile_recursive_mkdir(char *Pathname);
/*! Set the mode used when creating profile directories. */
void __llvm_profile_set_dir_mode(unsigned Mode);
/*! Return the directory creation mode. */
unsigned __llvm_profile_get_dir_mode(void);
int lprofLockFd(int fd);
int lprofUnlockFd(int fd);

7
lib/sanitizer_common/sanitizer_mutex.h
View File

@ -73,13 +73,8 @@ class SpinMutex : public StaticSpinMutex {
class BlockingMutex {
public:
#if SANITIZER_WINDOWS
// Windows does not currently support LinkerInitialized
explicit BlockingMutex(LinkerInitialized);
#else
explicit constexpr BlockingMutex(LinkerInitialized)
: opaque_storage_ {0, }, owner_(0) {}
#endif
: opaque_storage_ {0, }, owner_ {0} {}
BlockingMutex();
void Lock();
void Unlock();

35
lib/sanitizer_common/sanitizer_win.cc
View File

@ -767,43 +767,22 @@ void *internal_start_thread(void (*func)(void *arg), void *arg) { return 0; }
void internal_join_thread(void *th) { }
// ---------------------- BlockingMutex ---------------- {{{1
const uptr LOCK_UNINITIALIZED = 0;
const uptr LOCK_READY = (uptr)-1;
BlockingMutex::BlockingMutex(LinkerInitialized li) {
// FIXME: see comments in BlockingMutex::Lock() for the details.
CHECK(li == LINKER_INITIALIZED || owner_ == LOCK_UNINITIALIZED);
CHECK(sizeof(CRITICAL_SECTION) <= sizeof(opaque_storage_));
InitializeCriticalSection((LPCRITICAL_SECTION)opaque_storage_);
owner_ = LOCK_READY;
}
BlockingMutex::BlockingMutex() {
CHECK(sizeof(CRITICAL_SECTION) <= sizeof(opaque_storage_));
InitializeCriticalSection((LPCRITICAL_SECTION)opaque_storage_);
owner_ = LOCK_READY;
CHECK(sizeof(SRWLOCK) <= sizeof(opaque_storage_));
internal_memset(this, 0, sizeof(*this));
}
void BlockingMutex::Lock() {
if (owner_ == LOCK_UNINITIALIZED) {
// FIXME: hm, global BlockingMutex objects are not initialized?!?
// This might be a side effect of the clang+cl+link Frankenbuild...
new(this) BlockingMutex((LinkerInitialized)(LINKER_INITIALIZED + 1));
// FIXME: If it turns out the linker doesn't invoke our
// constructors, we should probably manually Lock/Unlock all the global
// locks while we're starting in one thread to avoid double-init races.
}
EnterCriticalSection((LPCRITICAL_SECTION)opaque_storage_);
CHECK_EQ(owner_, LOCK_READY);
AcquireSRWLockExclusive((PSRWLOCK)opaque_storage_);
CHECK_EQ(owner_, 0);
owner_ = GetThreadSelf();
}
void BlockingMutex::Unlock() {
CHECK_EQ(owner_, GetThreadSelf());
owner_ = LOCK_READY;
LeaveCriticalSection((LPCRITICAL_SECTION)opaque_storage_);
CheckLocked();
owner_ = 0;
ReleaseSRWLockExclusive((PSRWLOCK)opaque_storage_);
}
void BlockingMutex::CheckLocked() {

2
lib/ubsan/ubsan_checks.inc
View File

@ -30,6 +30,8 @@ UBSAN_CHECK(IntegerDivideByZero, "integer-divide-by-zero",
"integer-divide-by-zero")
UBSAN_CHECK(FloatDivideByZero, "float-divide-by-zero", "float-divide-by-zero")
UBSAN_CHECK(InvalidBuiltin, "invalid-builtin-use", "invalid-builtin-use")
UBSAN_CHECK(ImplicitIntegerTruncation, "implicit-integer-truncation",
"implicit-integer-truncation")
UBSAN_CHECK(InvalidShiftBase, "invalid-shift-base", "shift-base")
UBSAN_CHECK(InvalidShiftExponent, "invalid-shift-exponent", "shift-exponent")
UBSAN_CHECK(OutOfBoundsIndex, "out-of-bounds-index", "bounds")

2
lib/ubsan/ubsan_diag.h
View File

@ -178,7 +178,7 @@ class Diag {
};
private:
static const unsigned MaxArgs = 5;
static const unsigned MaxArgs = 8;
static const unsigned MaxRanges = 1;
/// The arguments which have been added to this diagnostic so far.

43
lib/ubsan/ubsan_handlers.cc
View File

@ -451,6 +451,49 @@ void __ubsan::__ubsan_handle_load_invalid_value_abort(InvalidValueData *Data,
Die();
}
static void handleImplicitConversion(ImplicitConversionData *Data,
ReportOptions Opts, ValueHandle Src,
ValueHandle Dst) {
SourceLocation Loc = Data->Loc.acquire();
ErrorType ET = ErrorType::GenericUB;
switch (Data->Kind) {
case ICCK_IntegerTruncation:
ET = ErrorType::ImplicitIntegerTruncation;
break;
}
if (ignoreReport(Loc, Opts, ET))
return;
const TypeDescriptor &SrcTy = Data->FromType;
const TypeDescriptor &DstTy = Data->ToType;
ScopedReport R(Opts, Loc, ET);
// FIXME: is it possible to dump the values as hex with fixed width?
Diag(Loc, DL_Error, ET,
"implicit conversion from type %0 of value %1 (%2-bit, %3signed) to "
"type %4 changed the value to %5 (%6-bit, %7signed)")
<< SrcTy << Value(SrcTy, Src) << SrcTy.getIntegerBitWidth()
<< (SrcTy.isSignedIntegerTy() ? "" : "un") << DstTy << Value(DstTy, Dst)
<< DstTy.getIntegerBitWidth() << (DstTy.isSignedIntegerTy() ? "" : "un");
}
void __ubsan::__ubsan_handle_implicit_conversion(ImplicitConversionData *Data,
ValueHandle Src,
ValueHandle Dst) {
GET_REPORT_OPTIONS(false);
handleImplicitConversion(Data, Opts, Src, Dst);
}
void __ubsan::__ubsan_handle_implicit_conversion_abort(
ImplicitConversionData *Data, ValueHandle Src, ValueHandle Dst) {
GET_REPORT_OPTIONS(true);
handleImplicitConversion(Data, Opts, Src, Dst);
Die();
}
static void handleInvalidBuiltin(InvalidBuiltinData *Data, ReportOptions Opts) {
SourceLocation Loc = Data->Loc.acquire();
ErrorType ET = ErrorType::InvalidBuiltin;

17
lib/ubsan/ubsan_handlers.h
View File

@ -122,6 +122,23 @@ struct InvalidValueData {
/// \brief Handle a load of an invalid value for the type.
RECOVERABLE(load_invalid_value, InvalidValueData *Data, ValueHandle Val)
/// Known implicit conversion check kinds.
/// Keep in sync with the enum of the same name in CGExprScalar.cpp
enum ImplicitConversionCheckKind : unsigned char {
ICCK_IntegerTruncation = 0,
};
struct ImplicitConversionData {
SourceLocation Loc;
const TypeDescriptor &FromType;
const TypeDescriptor &ToType;
/* ImplicitConversionCheckKind */ unsigned char Kind;
};
/// \brief Implict conversion that changed the value.
RECOVERABLE(implicit_conversion, ImplicitConversionData *Data, ValueHandle Src,
ValueHandle Dst)
/// Known builtin check kinds.
/// Keep in sync with the enum of the same name in CodeGenFunction.h
enum BuiltinCheckKind : unsigned char {

2
lib/ubsan/ubsan_interface.inc
View File

@ -22,6 +22,8 @@ INTERFACE_FUNCTION(__ubsan_handle_float_cast_overflow)
INTERFACE_FUNCTION(__ubsan_handle_float_cast_overflow_abort)
INTERFACE_FUNCTION(__ubsan_handle_function_type_mismatch)
INTERFACE_FUNCTION(__ubsan_handle_function_type_mismatch_abort)
INTERFACE_FUNCTION(__ubsan_handle_implicit_conversion)
INTERFACE_FUNCTION(__ubsan_handle_implicit_conversion_abort)
INTERFACE_FUNCTION(__ubsan_handle_invalid_builtin)
INTERFACE_FUNCTION(__ubsan_handle_invalid_builtin_abort)
INTERFACE_FUNCTION(__ubsan_handle_load_invalid_value)

1
lib/ubsan_minimal/ubsan_minimal_handlers.cc
View File

@ -109,6 +109,7 @@ HANDLER(float_cast_overflow, "float-cast-overflow")
HANDLER(load_invalid_value, "load-invalid-value")
HANDLER(invalid_builtin, "invalid-builtin")
HANDLER(function_type_mismatch, "function-type-mismatch")
HANDLER(implicit_conversion, "implicit-conversion")
HANDLER(nonnull_arg, "nonnull-arg")
HANDLER(nonnull_return, "nonnull-return")
HANDLER(nullability_arg, "nullability-arg")

36
lib/xray/tests/unit/profile_collector_test.cc
View File

@ -15,6 +15,8 @@
#include "xray_profile_collector.h"
#include "xray_profiling_flags.h"
#include <cstdint>
#include <cstring>
#include <memory>
#include <thread>
#include <utility>
#include <vector>
@ -24,6 +26,29 @@ namespace {
static constexpr auto kHeaderSize = 16u;
constexpr uptr ExpectedProfilingVersion = 0x20180424;
struct ExpectedProfilingFileHeader {
const u64 MagicBytes = 0x7872617970726f66; // Identifier for XRay profiling
// files 'xrayprof' in hex.
const u64 Version = ExpectedProfilingVersion;
u64 Timestamp = 0;
u64 PID = 0;
};
void ValidateFileHeaderBlock(XRayBuffer B) {
ASSERT_NE(static_cast<const void *>(B.Data), nullptr);
ASSERT_EQ(B.Size, sizeof(ExpectedProfilingFileHeader));
typename std::aligned_storage<sizeof(ExpectedProfilingFileHeader)>::type
FileHeaderStorage;
ExpectedProfilingFileHeader ExpectedHeader;
std::memcpy(&FileHeaderStorage, B.Data, B.Size);
auto &FileHeader =
*reinterpret_cast<ExpectedProfilingFileHeader *>(&FileHeaderStorage);
ASSERT_EQ(ExpectedHeader.MagicBytes, FileHeader.MagicBytes);
ASSERT_EQ(ExpectedHeader.Version, FileHeader.Version);
}
void ValidateBlock(XRayBuffer B) {
profilingFlags()->setDefaults();
ASSERT_NE(static_cast<const void *>(B.Data), nullptr);
@ -107,9 +132,13 @@ TEST(profileCollectorServiceTest, PostSerializeCollect) {
// Then we serialize the data.
profileCollectorService::serialize();
// Then we go through a single buffer to see whether we're getting the data we
// expect.
// Then we go through two buffers to see whether we're getting the data we
// expect. The first block must always be as large as a file header, which
// will have a fixed size.
auto B = profileCollectorService::nextBuffer({nullptr, 0});
ValidateFileHeaderBlock(B);
B = profileCollectorService::nextBuffer(B);
ValidateBlock(B);
u32 BlockSize;
u32 BlockNum;
@ -169,6 +198,9 @@ TEST(profileCollectorServiceTest, PostSerializeCollectMultipleThread) {
// Ensure that we see two buffers.
auto B = profileCollectorService::nextBuffer({nullptr, 0});
ValidateFileHeaderBlock(B);
B = profileCollectorService::nextBuffer(B);
ValidateBlock(B);
B = profileCollectorService::nextBuffer(B);

55
lib/xray/xray_buffer_queue.cc
View File

@ -13,17 +13,50 @@
//
//===----------------------------------------------------------------------===//
#include "xray_buffer_queue.h"
#include "sanitizer_common/sanitizer_allocator_internal.h"
#include "sanitizer_common/sanitizer_common.h"
#include "sanitizer_common/sanitizer_libc.h"
#include "sanitizer_common/sanitizer_posix.h"
#include <memory>
#include <sys/mman.h>
#ifndef MAP_NORESERVE
// no-op on NetBSD (at least), unsupported flag on FreeBSD
#define MAP_NORESERVE 0
#endif
using namespace __xray;
using namespace __sanitizer;
template <class T> static T *allocRaw(size_t N) {
// TODO: Report errors?
// We use MAP_NORESERVE on platforms where it's supported to ensure that the
// pages we're allocating for XRay never end up in pages that can be swapped
// in/out. We're doing this because for FDR mode, we want to ensure that
// writes to the buffers stay resident in memory to prevent XRay itself from
// causing swapping/thrashing.
//
// In the case when XRay pages cannot be swapped in/out or there's not enough
// RAM to back these pages, we're willing to cause a segmentation fault
// instead of introducing latency in the measurement. We assume here that
// there are enough pages that are swappable in/out outside of the buffers
// being used by FDR mode (which are bounded and configurable anyway) to allow
// us to keep using always-resident memory.
//
// TODO: Make this configurable?
void *A = reinterpret_cast<void *>(
internal_mmap(NULL, N * sizeof(T), PROT_WRITE | PROT_READ,
MAP_ANONYMOUS | MAP_PRIVATE | MAP_NORESERVE, -1, 0));
return (A == MAP_FAILED) ? nullptr : reinterpret_cast<T *>(A);
}
template <class T> static void deallocRaw(T *ptr, size_t N) {
// TODO: Report errors?
if (ptr != nullptr)
internal_munmap(ptr, N);
}
template <class T> static T *initArray(size_t N) {
auto A = reinterpret_cast<T *>(
InternalAlloc(N * sizeof(T), nullptr, kCacheLineSize));
auto A = allocRaw<T>(N);
if (A != nullptr)
while (N > 0)
new (A + (--N)) T();
@ -42,19 +75,19 @@ BufferQueue::BufferQueue(size_t B, size_t N, bool &Success)
// Clean up the buffers we've already allocated.
for (auto B = Buffers, E = Buffers + BufferCount; B != E; ++B)
B->~BufferRep();
InternalFree(Buffers);
deallocRaw(Buffers, N);
Success = false;
return;
};
for (size_t i = 0; i < N; ++i) {
auto &T = Buffers[i];
void *Tmp = InternalAlloc(BufferSize, nullptr, 64);
void *Tmp = allocRaw<char>(BufferSize);
if (Tmp == nullptr) {
Success = false;
return;
}
void *Extents = InternalAlloc(sizeof(BufferExtents), nullptr, 64);
auto *Extents = allocRaw<BufferExtents>(1);
if (Extents == nullptr) {
Success = false;
return;
@ -62,7 +95,7 @@ BufferQueue::BufferQueue(size_t B, size_t N, bool &Success)
auto &Buf = T.Buff;
Buf.Data = Tmp;
Buf.Size = B;
Buf.Extents = reinterpret_cast<BufferExtents *>(Extents);
Buf.Extents = Extents;
OwnedBuffers[i] = Tmp;
}
Success = true;
@ -128,11 +161,11 @@ BufferQueue::~BufferQueue() {
for (auto I = Buffers, E = Buffers + BufferCount; I != E; ++I) {
auto &T = *I;
auto &Buf = T.Buff;
InternalFree(Buf.Data);
InternalFree(Buf.Extents);
deallocRaw(Buf.Data, Buf.Size);
deallocRaw(Buf.Extents, 1);
}
for (auto B = Buffers, E = Buffers + BufferCount; B != E; ++B)
B->~BufferRep();
InternalFree(Buffers);
InternalFree(OwnedBuffers);
deallocRaw(Buffers, BufferCount);
deallocRaw(OwnedBuffers, BufferCount);
}

30
lib/xray/xray_profile_collector.cc
View File

@ -37,6 +37,19 @@ struct ProfileBuffer {
size_t Size;
};
// Current version of the profile format.
constexpr u64 XRayProfilingVersion = 0x20180424;
// Identifier for XRay profiling files 'xrayprof' in hex.
constexpr u64 XRayMagicBytes = 0x7872617970726f66;
struct XRayProfilingFileHeader {
const u64 MagicBytes = XRayMagicBytes;
const u64 Version = XRayProfilingVersion;
u64 Timestamp = 0; // System time in nanoseconds.
u64 PID = 0; // Process ID.
};
struct BlockHeader {
u32 BlockSize;
u32 BlockNum;
@ -302,7 +315,22 @@ XRayBuffer nextBuffer(XRayBuffer B) {
if (ProfileBuffers == nullptr || ProfileBuffers->Size() == 0)
return {nullptr, 0};
if (B.Data == nullptr)
static pthread_once_t Once = PTHREAD_ONCE_INIT;
static typename std::aligned_storage<sizeof(XRayProfilingFileHeader)>::type
FileHeaderStorage;
pthread_once(&Once,
+[] { new (&FileHeaderStorage) XRayProfilingFileHeader{}; });
if (UNLIKELY(B.Data == nullptr)) {
// The first buffer should always contain the file header information.
auto &FileHeader =
*reinterpret_cast<XRayProfilingFileHeader *>(&FileHeaderStorage);
FileHeader.Timestamp = NanoTime();
FileHeader.PID = internal_getpid();
return {&FileHeaderStorage, sizeof(XRayProfilingFileHeader)};
}
if (UNLIKELY(B.Data == &FileHeaderStorage))
return {(*ProfileBuffers)[0].Data, (*ProfileBuffers)[0].Size};
BlockHeader Header;

19
lib/xray/xray_profiling.cc
View File

@ -32,16 +32,6 @@ namespace __xray {
namespace {
constexpr uptr XRayProfilingVersion = 0x20180424;
struct XRayProfilingFileHeader {
const u64 MagicBytes = 0x7872617970726f66; // Identifier for XRay profiling
// files 'xrayprof' in hex.
const uptr Version = XRayProfilingVersion;
uptr Timestamp = 0; // System time in nanoseconds.
uptr PID = 0; // Process ID.
};
atomic_sint32_t ProfilerLogFlushStatus = {
XRayLogFlushStatus::XRAY_LOG_NOT_FLUSHING};
@ -144,14 +134,7 @@ XRayLogFlushStatus profilingFlush() XRAY_NEVER_INSTRUMENT {
if (Verbosity())
Report("profiling: Failed to flush to file, dropping data.\n");
} else {
XRayProfilingFileHeader Header;
Header.Timestamp = NanoTime();
Header.PID = internal_getpid();
retryingWriteAll(Fd, reinterpret_cast<const char *>(&Header),
reinterpret_cast<const char *>(&Header) +
sizeof(Header));
// Now for each of the threads, write out the profile data as we would
// Now for each of the buffers, write out the profile data as we would
// see it in memory, verbatim.
while (B.Data != nullptr && B.Size != 0) {
retryingWriteAll(Fd, reinterpret_cast<const char *>(B.Data),

2
test/asan/TestCases/intercept-rethrow-exception.cc
View File

@ -1,7 +1,7 @@
// Regression test for
// https://bugs.llvm.org/show_bug.cgi?id=32434
// RUN: %clangxx_asan -O0 %s -o %t
// RUN: %clangxx_asan -fexceptions -O0 %s -o %t
// RUN: %run %t
#include <assert.h>

27
test/fuzzer/ImplicitIntegerTruncationTest.cpp Normal file
View File

@ -0,0 +1,27 @@
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Test for signed-integer-overflow.
#include <assert.h>
#include <climits>
#include <cstddef>
#include <cstdint>
#include <cstdlib>
#include <iostream>
static volatile int Sink;
static unsigned char Large = UINT8_MAX;
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
assert(Data);
if (Size > 0 && Data[0] == 'H') {
Sink = 1;
if (Size > 1 && Data[1] == 'i') {
Sink = 2;
if (Size > 2 && Data[2] == '!') {
Large = Large + 1; // 'char overflow'.
}
}
}
return 0;
}

5
test/fuzzer/fuzzer-implicit-integer-truncation.test Normal file
View File

@ -0,0 +1,5 @@
RUN: rm -f %t-ImplicitIntegerTruncationTest-Ubsan
RUN: %cpp_compiler -fsanitize=implicit-integer-truncation -fno-sanitize-recover=all %S/ImplicitIntegerTruncationTest.cpp -o %t-ImplicitIntegerTruncationTest-Ubsan
RUN: not %run %t-ImplicitIntegerTruncationTest-Ubsan 2>&1 | FileCheck %s
CHECK: runtime error: implicit conversion from type 'int' of value 256 (32-bit, signed) to type 'unsigned char' changed the value to 0 (8-bit, unsigned)
CHECK: Test unit written to ./crash-

15
test/profile/Inputs/instrprof-gcov-fork.c Normal file
View File

@ -0,0 +1,15 @@
#include <unistd.h>
void func1() {}
void func2() {}
int main(void)
{
func1();
fork();
func2();
return 0;
}

23
test/profile/Inputs/instrprof-gcov-fork.c.gcov Normal file
View File

@ -0,0 +1,23 @@
// CHECK: -: 0:Source:{{.*}}Inputs/instrprof-gcov-fork.c
// CHECK-NEXT: -: 0:Graph:instrprof-gcov-fork.gcno
// CHECK-NEXT: -: 0:Data:instrprof-gcov-fork.gcda
// CHECK-NEXT: -: 0:Runs:1
// CHECK-NEXT: -: 0:Programs:1
// CHECK-NEXT: -: 1:#include <unistd.h>
// CHECK-NEXT: -: 2:
// CHECK-NEXT:function func1 called 1 returned 100% blocks executed 100%
// CHECK-NEXT: 1: 3:void func1() {}
// CHECK-NEXT:function func2 called 2 returned 100% blocks executed 100%
// CHECK-NEXT: 2: 4:void func2() {}
// CHECK-NEXT: -: 5:
// CHECK-NEXT:function main called 1 returned 100% blocks executed 100%
// CHECK-NEXT: -: 6:int main(void)
// CHECK-NEXT: -: 7:{
// CHECK-NEXT: 1: 8: func1();
// CHECK-NEXT: -: 9:
// CHECK-NEXT: 1: 10: fork();
// CHECK-NEXT: -: 11:
// CHECK-NEXT: 2: 12: func2();
// CHECK-NEXT: -: 13:
// CHECK-NEXT: 2: 14: return 0;
// CHECK-NEXT: -: 15:}

18
test/profile/Inputs/instrprof-gcov-switch1.c Normal file
View File

@ -0,0 +1,18 @@
int main(void)
{
int i = 22;
switch (i) {
case 7:
break;
case 22:
i = 7;
break;
case 42:
break;
}
return 0;
}

23
test/profile/Inputs/instrprof-gcov-switch1.c.gcov Normal file
View File

@ -0,0 +1,23 @@
// CHECK: -: 0:Source:{{.*}}Inputs/instrprof-gcov-switch1.c
// CHECK-NEXT: -: 0:Graph:instrprof-gcov-switch1.gcno
// CHECK-NEXT: -: 0:Data:instrprof-gcov-switch1.gcda
// CHECK-NEXT: -: 0:Runs:1
// CHECK-NEXT: -: 0:Programs:1
// CHECK-NEXT: -: 1:int main(void)
// CHECK-NEXT: -: 2:{
// CHECK-NEXT: 2: 3: int i = 22;
// CHECK-NEXT: -: 4:
// CHECK-NEXT: 2: 5: switch (i) {
// CHECK-NEXT: -: 6: case 7:
// CHECK-NEXT: #####: 7: break;
// CHECK-NEXT: -: 8:
// CHECK-NEXT: -: 9: case 22:
// CHECK-NEXT: 1: 10: i = 7;
// CHECK-NEXT: 1: 11: break;
// CHECK-NEXT: -: 12:
// CHECK-NEXT: -: 13: case 42:
// CHECK-NEXT: #####: 14: break;
// CHECK-NEXT: -: 15: }
// CHECK-NEXT: -: 16:
// CHECK-NEXT: 1: 17: return 0;
// CHECK-NEXT: -: 18:}

18
test/profile/Inputs/instrprof-gcov-switch2.c Normal file
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@ -0,0 +1,18 @@
int main(void)
{
int i = 22;
switch (i) {
case 7:
break;
case 22:
i = 7;
case 42:
i = 22;
break;
}
return 0;
}

23
test/profile/Inputs/instrprof-gcov-switch2.c.gcov Normal file
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@ -0,0 +1,23 @@
// CHECK: -: 0:Source:{{.*}}Inputs/instrprof-gcov-switch2.c
// CHECK-NEXT: -: 0:Graph:instrprof-gcov-switch2.gcno
// CHECK-NEXT: -: 0:Data:instrprof-gcov-switch2.gcda
// CHECK-NEXT: -: 0:Runs:1
// CHECK-NEXT: -: 0:Programs:1
// CHECK-NEXT: -: 1:int main(void)
// CHECK-NEXT: -: 2:{
// CHECK-NEXT: 3: 3: int i = 22;
// CHECK-NEXT: -: 4:
// CHECK-NEXT: 3: 5: switch (i) {
// CHECK-NEXT: -: 6: case 7:
// CHECK-NEXT: #####: 7: break;
// CHECK-NEXT: -: 8:
// CHECK-NEXT: -: 9: case 22:
// CHECK-NEXT: 1: 10: i = 7;
// CHECK-NEXT: -: 11:
// CHECK-NEXT: -: 12: case 42:
// CHECK-NEXT: 1: 13: i = 22;
// CHECK-NEXT: 1: 14: break;
// CHECK-NEXT: -: 15: }
// CHECK-NEXT: -: 16:
// CHECK-NEXT: 1: 17: return 0;
// CHECK-NEXT: -: 18:}

12
test/profile/Posix/instrprof-gcov-fork.test Normal file
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@ -0,0 +1,12 @@
XFAIL: *
RUN: mkdir -p %t.d
RUN: cd %t.d
RUN: %clang --coverage -o %t %S/../Inputs/instrprof-gcov-fork.c
RUN: test -f instrprof-gcov-fork.gcno
RUN: rm -f instrprof-gcov-fork.gcda
RUN: %run %t
RUN: llvm-cov gcov -b -c instrprof-gcov-fork.gcda
RUN: FileCheck --match-full-lines --strict-whitespace --input-file instrprof-gcov-fork.c.gcov %S/../Inputs/instrprof-gcov-fork.c.gcov

16
test/profile/instrprof-gcov-switch.test Normal file
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@ -0,0 +1,16 @@
RUN: mkdir -p %t.d
RUN: cd %t.d
RUN: %clang --coverage -o %t %S/Inputs/instrprof-gcov-switch1.c
RUN: test -f instrprof-gcov-switch1.gcno
RUN: rm -f instrprof-gcov-switch1.gcda
RUN: %run %t
RUN: llvm-cov gcov instrprof-gcov-switch1.gcda
RUN: FileCheck --match-full-lines --strict-whitespace --input-file instrprof-gcov-switch1.c.gcov %S/Inputs/instrprof-gcov-switch1.c.gcov
RUN: %clang --coverage -o %t %S/Inputs/instrprof-gcov-switch2.c
RUN: test -f instrprof-gcov-switch2.gcno
RUN: rm -f instrprof-gcov-switch2.gcda
RUN: %run %t
RUN: llvm-cov gcov instrprof-gcov-switch2.gcda
RUN: FileCheck --match-full-lines --strict-whitespace --input-file instrprof-gcov-switch2.c.gcov %S/Inputs/instrprof-gcov-switch2.c.gcov

48
test/profile/instrprof-set-dir-mode.c Normal file
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@ -0,0 +1,48 @@
// UNSUPPORTED: windows
// RUN: %clang_pgogen -o %t.bin %s -DTESTPATH=\"%t.dir\"
// RUN: rm -rf %t.dir
// RUN: %run %t.bin
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
void __llvm_profile_set_dir_mode(unsigned Mode);
unsigned __llvm_profile_get_dir_mode(void);
void __llvm_profile_recursive_mkdir(char *Path);
static int test(unsigned Mode, const char *TestDir) {
int Ret = 0;
/* Create a dir and set the mode accordingly. */
char *Dir = strdup(TestDir);
if (!Dir)
return -1;
__llvm_profile_set_dir_mode(Mode);
__llvm_profile_recursive_mkdir(Dir);
if (Mode != __llvm_profile_get_dir_mode())
Ret = -1;
else {
const unsigned Expected = ~umask(0) & Mode;
struct stat DirSt;
if (stat(Dir, &DirSt) == -1)
Ret = -1;
else if (DirSt.st_mode != Expected) {
printf("Modes do not match: Expected %o but found %o (%s)\n", Expected,
DirSt.st_mode, Dir);
Ret = -1;
}
}
free(Dir);
return Ret;
}
int main(void) {
if (test(S_IFDIR | 0777, TESTPATH "/foo/bar/baz/") ||
test(S_IFDIR | 0666, TESTPATH "/foo/bar/qux/"))
return -1;
return 0;
}

20
test/ubsan/TestCases/ImplicitConversion/integer-truncation-blacklist.c Normal file
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@ -0,0 +1,20 @@
// FIXME: https://code.google.com/p/address-sanitizer/issues/detail?id=316
// I'm not sure this is actually *that* issue, but this seems oddly similar to the other XFAIL'ed cases.
// XFAIL: android
// UNSUPPORTED: ios
// RUN: rm -f %tmp
// RUN: echo "[implicit-integer-truncation]" >> %tmp
// RUN: echo "fun:*implicitTruncation*" >> %tmp
// RUN: %clang -fsanitize=implicit-integer-truncation -fno-sanitize-recover=implicit-integer-truncation -fsanitize-blacklist=%tmp -O0 %s -o %t && not %run %t 2>&1
// RUN: %clang -fsanitize=implicit-integer-truncation -fno-sanitize-recover=implicit-integer-truncation -fsanitize-blacklist=%tmp -O1 %s -o %t && not %run %t 2>&1
// RUN: %clang -fsanitize=implicit-integer-truncation -fno-sanitize-recover=implicit-integer-truncation -fsanitize-blacklist=%tmp -O2 %s -o %t && not %run %t 2>&1
// RUN: %clang -fsanitize=implicit-integer-truncation -fno-sanitize-recover=implicit-integer-truncation -fsanitize-blacklist=%tmp -O3 %s -o %t && not %run %t 2>&1
unsigned char implicitTruncation(unsigned int argc) {
return argc; // BOOM
}
int main(int argc, char **argv) {
return implicitTruncation(~0U);
}

13
test/ubsan/TestCases/ImplicitConversion/integer-truncation-summary.cpp Normal file
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@ -0,0 +1,13 @@
// RUN: %clangxx -fsanitize=implicit-integer-truncation %s -o %t
// RUN: %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-NOTYPE
// RUN: %env_ubsan_opts=report_error_type=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-TYPE
// REQUIRES: !ubsan-standalone && !ubsan-standalone-static
#include <stdint.h>
int main() {
uint8_t t0 = (~(uint32_t(0)));
// CHECK-NOTYPE: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior {{.*}}summary.cpp:[[@LINE-1]]:16
// CHECK-TYPE: SUMMARY: UndefinedBehaviorSanitizer: implicit-integer-truncation {{.*}}summary.cpp:[[@LINE-2]]:16
return 0;
}

63
test/ubsan/TestCases/ImplicitConversion/integer-truncation.c Normal file
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@ -0,0 +1,63 @@
// RUN: %clang -x c -fsanitize=implicit-integer-truncation %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK
// RUN: %clangxx -x c++ -fsanitize=implicit-integer-truncation %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK
#include <stdint.h>
#if !defined(__cplusplus)
#define bool _Bool
#endif
int main() {
// CHECK-NOT: integer-truncation.c
// Negative tests. Even if they produce unexpected results, this sanitizer does not care.
int8_t n0 = (~((uint32_t)0)); // ~0 -> -1, but do not warn.
uint8_t n2 = 128;
uint8_t n3 = 255;
// Bools do not count
bool b0 = (~((uint32_t)0));
bool b1 = 255;
// Explicit and-ing of bits will silence it.
uint8_t nc0 = (~((uint32_t)0)) & 255;
// Explicit casts
uint8_t i0 = (uint8_t)(~((uint32_t)0));
#if defined(__cplusplus)
uint8_t i1 = uint8_t(~(uint32_t(0)));
uint8_t i2 = static_cast<uint8_t>(~(uint32_t(0)));
#endif
// Positive tests.
uint8_t t_b0 = (~((uint16_t)(0)));
// CHECK: {{.*}}integer-truncation.c:[[@LINE-1]]:18: runtime error: implicit conversion from type 'int' of value -1 (32-bit, signed) to type 'uint8_t' (aka 'unsigned char') changed the value to 255 (8-bit, unsigned)
uint8_t t_b1 = (~((uint32_t)0));
// CHECK: {{.*}}integer-truncation.c:[[@LINE-1]]:18: runtime error: implicit conversion from type 'uint32_t' (aka 'unsigned int') of value 4294967295 (32-bit, unsigned) to type 'uint8_t' (aka 'unsigned char') changed the value to 255 (8-bit, unsigned)
uint16_t t_b2 = (~((uint32_t)0));
// CHECK: {{.*}}integer-truncation.c:[[@LINE-1]]:19: runtime error: implicit conversion from type 'uint32_t' (aka 'unsigned int') of value 4294967295 (32-bit, unsigned) to type 'uint16_t' (aka 'unsigned short') changed the value to 65535 (16-bit, unsigned)
uint8_t t_b3 = ~((uint64_t)0);
// CHECK: {{.*}}integer-truncation.c:[[@LINE-1]]:18: runtime error: implicit conversion from type 'uint64_t' (aka 'unsigned long{{[^']*}}') of value 18446744073709551615 (64-bit, unsigned) to type 'uint8_t' (aka 'unsigned char') changed the value to 255 (8-bit, unsigned)
uint16_t t_b4 = ~((uint64_t)0);
// CHECK: {{.*}}integer-truncation.c:[[@LINE-1]]:19: runtime error: implicit conversion from type 'uint64_t' (aka 'unsigned long{{[^']*}}') of value 18446744073709551615 (64-bit, unsigned) to type 'uint16_t' (aka 'unsigned short') changed the value to 65535 (16-bit, unsigned)
uint32_t t_b5 = ~((uint64_t)0);
// CHECK: {{.*}}integer-truncation.c:[[@LINE-1]]:19: runtime error: implicit conversion from type 'uint64_t' (aka 'unsigned long{{[^']*}}') of value 18446744073709551615 (64-bit, unsigned) to type 'uint32_t' (aka 'unsigned int') changed the value to 4294967295 (32-bit, unsigned)
int8_t t1 = 255;
// CHECK: {{.*}}integer-truncation.c:[[@LINE-1]]:15: runtime error: implicit conversion from type 'int' of value 255 (32-bit, signed) to type 'int8_t' (aka 'signed char') changed the value to -1 (8-bit, signed)
uint8_t t2 = 256;
// CHECK: {{.*}}integer-truncation.c:[[@LINE-1]]:16: runtime error: implicit conversion from type 'int' of value 256 (32-bit, signed) to type 'uint8_t' (aka 'unsigned char') changed the value to 0 (8-bit, unsigned)
int8_t t3 = 256;
// CHECK: {{.*}}integer-truncation.c:[[@LINE-1]]:15: runtime error: implicit conversion from type 'int' of value 256 (32-bit, signed) to type 'int8_t' (aka 'signed char') changed the value to 0 (8-bit, signed)
uint8_t t4 = 257;
// CHECK: {{.*}}integer-truncation.c:[[@LINE-1]]:16: runtime error: implicit conversion from type 'int' of value 257 (32-bit, signed) to type 'uint8_t' (aka 'unsigned char') changed the value to 1 (8-bit, unsigned)
int8_t t5 = 257;
// CHECK: {{.*}}integer-truncation.c:[[@LINE-1]]:15: runtime error: implicit conversion from type 'int' of value 257 (32-bit, signed) to type 'int8_t' (aka 'signed char') changed the value to 1 (8-bit, signed)
int8_t t6 = 128;
// CHECK: {{.*}}integer-truncation.c:[[@LINE-1]]:15: runtime error: implicit conversion from type 'int' of value 128 (32-bit, signed) to type 'int8_t' (aka 'signed char') changed the value to -128 (8-bit, signed)
return 0;
}

24
test/ubsan_minimal/TestCases/implicit-integer-truncation.c Normal file
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@ -0,0 +1,24 @@
// RUN: %clang -fsanitize=implicit-integer-truncation %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK
#include <stdint.h>
int main() {
// CHECK-NOT: integer-truncation.c
// Negative tests. Even if they produce unexpected results, this sanitizer does not care.
int8_t n0 = (~((uint32_t)(0))); // ~0 -> -1, but do not warn.
uint8_t n2 = 128;
uint8_t n3 = 255;
// Bools do not count
_Bool b0 = (~((uint32_t)(0)));
_Bool b1 = 255;
// Explicit and-ing of bits will silence it.
uint8_t nc0 = ((~((uint32_t)(0))) & 255);
// Positive tests.
uint8_t t0 = (~((uint32_t)(0)));
// CHECK: implicit-conversion
return 0;
}

5
test/xray/TestCases/Posix/profiling-multi-threaded.cc
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@ -51,7 +51,8 @@ volatile int buffer_counter = 0;
assert(__xray_log_finalize() == XRayLogInitStatus::XRAY_LOG_FINALIZED);
assert(__xray_log_process_buffers(process_buffer) ==
XRayLogFlushStatus::XRAY_LOG_FLUSHED);
// We're running three threds, so we expect three buffers.
assert(buffer_counter == 3);
// We're running three threads, so we expect four buffers (including the file
// header buffer).
assert(buffer_counter == 4);
assert(__xray_log_flushLog() == XRayLogFlushStatus::XRAY_LOG_FLUSHED);
}

7
test/xray/TestCases/Posix/profiling-single-threaded.cc
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@ -47,7 +47,10 @@ volatile int buffer_counter = 0;
f0();
assert(__xray_log_process_buffers(process_buffer) ==
XRayLogFlushStatus::XRAY_LOG_FLUSHED);
assert(buffer_counter == 1);
// There's always at least one buffer, containing the profile file header. We
// assert that we have two, to indicate that we're expecting exactly one
// thread's worth of data.
assert(buffer_counter == 2);
assert(__xray_log_flushLog() == XRayLogFlushStatus::XRAY_LOG_FLUSHED);
// Let's reset the counter.
@ -60,6 +63,6 @@ volatile int buffer_counter = 0;
f0();
assert(__xray_log_process_buffers(process_buffer) ==
XRayLogFlushStatus::XRAY_LOG_FLUSHED);
assert(buffer_counter == 1);
assert(buffer_counter == 2);
assert(__xray_log_flushLog() == XRayLogFlushStatus::XRAY_LOG_FLUSHED);
}