Commit Graph

799 Commits

Author SHA1 Message Date
Konstantin Belousov
96cdb0ab9d Annotate arm userspace assembler sources stating their tolerance to
the non-executable stack.

Reviewed by:	andrew
Sponsored by:	The FreeBSD Foundation
2015-09-29 16:09:58 +00:00
Pedro F. Giffuni
bc38441579 GCC: Add a new option "-fstack-protector-strong"
This includes additional functions to be protected: those that
have local array definitions, or have references to local frame
addresses. This is a new option in GCC-4.9 that was relicensed
by Han Shen from Google under GPLv2 for OpenBSD.

Obtained from:	OpenBSD (2014-01-14)
MFC after:	2 weeks
2015-07-30 14:31:09 +00:00
Adrian Chadd
872b4ed5ea Fix compilation of this macro under gcc-4.9 for MIPS32.
Some point after gcc-4.2 the MIPS inline assembly restrictions changed -
=h (hi register) disappeared from the list of restrictions and can no
longer be used.

So, until someone requires an assembly version of this function,
just use a non-assembly version and let the compiler sort it out.

Suggested by:	kan
2015-06-18 13:40:08 +00:00
Andrew Turner
b35f8350c2 Use a spelling of .thumb clang understands. 2015-05-31 07:28:34 +00:00
Sean Bruno
76da95eba4 Update intree gdb/kgdb to handle 2 dwarf types:
DW_OP_GNU_uninit
DW_OP_piece

This squashes the warnings about type 0x93 not known in kgdb when opening a kernel crash dump.

Upstream refs:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=87808bd699575a850139a1f916512ab7a47fd496
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=42be36b328ae784ae6981da7c7cab95b67ed7737
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=23572ecadc89af384c1804ad7692f32c55fbfc80

Differential Revision:	https://reviews.freebsd.org/D2534
Reviewed by:	emaste, jhb, davide
2015-05-17 15:49:38 +00:00
Ed Maste
640cba97d8 unwind-d2 build workaround for arm64
The __builtin_init_dwarf_reg_size_table function is unimplemented in
clang 3.6 for AArch64. Comment it out for now and replace it with
a message and abort.

Tracked in upstream LLVM PR 22997
https://llvm.org/bugs/show_bug.cgi?id=22997

Submitted by:	andrew
2015-03-31 13:37:32 +00:00
Andrew Turner
305d71de6e Also define DWARF_FRAME_REGISTERS. This is used to size arrays, without
this exceptions could write over the stack.

Sponsored by:	The FreeBSD Foundation
2015-03-26 18:25:53 +00:00
Andrew Turner
6dd9f5b375 Adda minimal gcc config. This is just enough to build the bits of csu we
get from gcc, and libgcc_eh.

Sponsored by:	The FreeBSD Foundation
2015-03-24 14:22:58 +00:00
Andrew Turner
573a66c3dc FreeBSD expects _Unwind_GetGR, _Unwind_SetGR, and _Unwind_SetIP to be
symbols and not macros. Make this so. This fixes a few ports that try to
link against these functions but fail as they previously didn't exist.
2015-02-01 09:50:33 +00:00
Ian Lepore
040610408e Allow -march=armv7a on the gcc command line, for compatibility with clang.
This will result in __ARM_ARCH_7A__ being defined during the compile.

When compiling with gcc, it will still only generate armv6 opcodes itself,
but should pass the arch to gas so that inline asm can use v7 opcodes.
2014-12-21 23:45:13 +00:00
Dimitry Andric
b42a6953a1 Pull in r174303 from upstream gcc trunk (by Jason Merrill):
PR c++/48211
  * name-lookup.h (cp_class_binding): Make base a pointer.
  * name-lookup.c (new_class_binding): Adjust.
  (poplevel_class): Adjust.

This fixes a potential segfault when compiling gold, a part of the
devel/binutils port, with gcc.  See also the upstream bug report:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48211

Thanks to Jason Merrill, Tom Callaway and Red Hat legal for approving
the use of this patch under the GNU GPL, version 2 or later.

MFC after:	1 week
2014-12-04 17:26:04 +00:00
Andrew Turner
f9867ad74d Use the floating-point instruction on ARMv7 as the clang 3.5 integrated
assembler doesn't allow these two instructions to use co-processor 11.

MFC after:	1 Week
Sponsored by:	ABT Systems Ltd
2014-12-01 21:13:47 +00:00
Andrew Turner
b4ce9f7856 There is no need to use FUNC_END with aeabi_ldiv0 or aeabi_idiv0 as they
are aliases.

Sponsored by:	ABT Systems Ltd
2014-11-30 17:29:49 +00:00
Dimitry Andric
74346cb90d Supplement r259111 by also using correct casts in gcc's emmintrin.h for
the first argument of the following builtin function:

* __builtin_ia32_psrlqi128() takes __v2di instead of __v4si

This should fix the following errors when building the graphics/webp
port with base gcc:

lossless_sse2.c:403: error: incompatible type for argument 1 of '__builtin_ia32_psrlqi128'
lossless_sse2.c:404: error: incompatible type for argument 1 of '__builtin_ia32_psrlqi128'

Reported by:	Jos Chrispijn <ports@webrz.net>
MFC after:	3 days
2014-08-13 16:42:44 +00:00
Ian Lepore
fc6840cc02 Add FreeBSD to the list of environments that needs to handle R_ARM_TARGET2
relocations in unwind data as pc-relative indirect references.

MFC after:	1 week
2014-07-22 20:49:58 +00:00
Gavin Atkinson
ad3afeea16 With the move away from GNATS, point end users to a better web page
detailing how to report bugs.

Hat:		bugmeister
MFC after:	3 days
2014-06-14 18:45:40 +00:00
Pedro F. Giffuni
cd85ba9385 gcc: fix strict alignment.
From the OpenBSD log:

x86-64 ABI requires arrays greater than 16 bytes to be aligned to
16byte boundary.  However, GCC 16-byte aligns arrays of >=16 BITS,
not BYTES.

This diff improves bug detectability for code which has local arrays
of [16 .. 127] bits:  in those cases SSP will now detect even 1-byte
overflows.

Obtained from:	OpenBSD (CVS rev 1.4)
MFC after:	1 week
2014-05-02 16:15:34 +00:00
Pedro F. Giffuni
8fb9488054 gcc: define __block when block support is enabled
This mimics the behaviour in clang and lets us build cleanly
the libdispatch port on platforms where the base gcc is still
the default compiler.

Bump __FreeBSD_version for ports.

Tested by:	theraven
MFC after:	3 days
2014-04-04 15:49:23 +00:00
Dimitry Andric
f5e6413717 Similar to r211505 for x86, remove unneeded casts in inline assembly for
sparc64 from contrib/gcc/longlong.h, which are considered "heinous" GNU
extensions by clang.
2014-02-20 23:08:01 +00:00
Dimitry Andric
f785676f2a Upgrade our copy of llvm/clang to 3.4 release. This version supports
all of the features in the current working draft of the upcoming C++
standard, provisionally named C++1y.

The code generator's performance is greatly increased, and the loop
auto-vectorizer is now enabled at -Os and -O2 in addition to -O3.  The
PowerPC backend has made several major improvements to code generation
quality and compile time, and the X86, SPARC, ARM32, Aarch64 and SystemZ
backends have all seen major feature work.

Release notes for llvm and clang can be found here:
<http://llvm.org/releases/3.4/docs/ReleaseNotes.html>
<http://llvm.org/releases/3.4/tools/clang/docs/ReleaseNotes.html>

MFC after:	1 month
2014-02-16 19:44:07 +00:00
Pedro F. Giffuni
321c39ba84 gcc: Add support for -Wmissing-prototypes in C++
Support for warnings about missing prototypes in C++ was added by Apple
GCC (Radar 6261539).  Most of the code crept into r260311 so it felt
natural to make use of it.

Obtained from:	Apple GCC - 5646
MFC after:	5 days
2014-01-26 02:36:06 +00:00
Pedro F. Giffuni
3cb44b3f65 gcc: Drop useless objc change from r260311.
Among some of the objc changes from Apple that crept into r260311,
Radar 5355344 is incomplete and is not used since we don't carry
ObjC in the base system.

The dead code seems to have caused issues in some Tinderboxes so
get rid of it altogether.

Reported by:	luigi
MFC after:	9 days
2014-01-17 21:21:28 +00:00
Andrew Turner
0b55a5a4af Fix gcc with EABI on big-endian ARM by setting the endian correctly.
Without this gcc would generate byte loads for a little-endian core.

MFC after:	1 week
2014-01-12 15:35:03 +00:00
Pedro F. Giffuni
02f1bd6b8d Fix optimization bug.
GCC-PR rtl-optimization/34628
	* combine.c (try_combine): Stop and undo after the first combination
	if an autoincrement side-effect on the first insn has effectively
	been lost.

The issue was detected in OpenBSD but their fix was not very good. Huge
thanks to the upstream author, Eric Botcazou, for permitting the use of
this patch under GPLv2.

MFC after:	5 days
2014-01-06 00:52:39 +00:00
Pedro F. Giffuni
ab07951c0c gcc: backport some fixes from llvm-gcc
llvm-gcc backported some patches from gcc trunk:

http://gcc.gnu.org/ml/gcc-cvs/2007-05/msg00662.html
http://gcc.gnu.org/ml/gcc-cvs/2007-07/msg00019.html
http://gcc.gnu.org/ml/gcc-cvs/2007-08/msg00240.html
http://gcc.gnu.org/ml/gcc-cvs/2007-08/msg00493.html

The first two were always GPL2. The last two were
added after the GPL3 transition, but were written
by aaw@google.com and Rafael Espíndola got permission
to relicense them under the GPL2 for inclusion in
llvm-gcc.

This fixes GCC-PR c++/31749

Obtained from:	llvm-gcc (rev. 75463; GPLv2)
MFC after:	2 weeks
2014-01-05 20:33:44 +00:00
Pedro F. Giffuni
5bfc7db451 gcc: Add support for Apple's Block extension
Block objects [1] are a C-level syntactic and runtime feature. They
are similar to standard C functions, but in addition to executable
code they may also contain variable bindings to automatic (stack)
or managed (heap) memory. A block can therefore maintain a set of
state (data) that it can use to impact behavior when executed.

This port is based on Apple's GCC 5646 with some bugfixes from
Apple GCC 5666.3. It has some small differences with the support
in clang, which remains the recommended compiler.

Perhaps the most notable difference is that in GCC that __block
is not actually a keyword, but a macro. There will be workaround
for this issue in a near future. Other issues can be consulted in
the clang documentation [2]

For better compatiblity with Apple's GCC and llvm-gcc some related
fixes and features from Apple have been included. Support for the
non-standard nested functions in GCC is now off by default.

No effort was made to update the ObjC support since FreeBSD doesn't
carry ObjC in the base system, but some of the code crept in and
was more difficult to remove than to adjust.

Reference:
[1]
https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html
[2]
http://clang.llvm.org/compatibility.html#block-variable-initialization

Obtained from:	Apple GCC 4.2
MFC after:	3 weeks
2014-01-05 00:43:28 +00:00
Pedro F. Giffuni
e1b3bb5380 libcpp: misc fixes from Apple's GCC.
Fixes some bugs detected by Apple:
#error with unmatched quotes
pragma mark

Obtained from:	Apple GCC 4.2 - 5553
MFC after:	1 week
2014-01-05 00:32:38 +00:00
Pedro F. Giffuni
d096f2f5a8 Revert r260073; small diff reduction wrt gcc43 and Apple GCC.
Unfortunately this causes ICE on powerpc and sparc64.

Reducing these differences against upstream is not important
anymore so hopefully I have finished breaking the compiler
occasionally.
2014-01-02 13:53:53 +00:00
Pedro F. Giffuni
1b9906c757 gcc: Fix issue with "unavailable" attribute.
While here, point where we dropped the support for objc from r260014.

MFC after:	3 weeks
2013-12-30 20:24:05 +00:00
Pedro F. Giffuni
fdcd8bc639 gcc: small diff reduction wrt gcc43 and Apple GCC.
Obtained from:	gcc 4.3 (rev. 121464, 122528, 124106; GPLv2)
MFC after:	3 weeks
2013-12-30 02:52:43 +00:00
Pedro F. Giffuni
2d278bb89e gcc: Add support for label attributes and "unavailable" attribute.
Apple GCC has extensions to support for both label attributes and
an "unavailable" attribute. These are critical for objc but are
also useful in regular C/C++.

Apparently at least the label attributes might have found their way to
upstream GCC but the code doesn't seem available on the GPLv2 tree so
we are taking the code directly from Apple. To make this clearer we
are preserving the annoying "APPLE LOCAL" tags and the ChangeLogs
when they are available.

Obtained from:	Apple GCC 4.2 - 5531
MFC after:	3 weeks
2013-12-28 20:30:31 +00:00
Pedro F. Giffuni
4707030025 gcc: merge small upstream change.
Backport from mainline:
2007-04-24  Hui-May Chang <hm.chang@apple.com>

* reload1.c (merge_assigned_reloads) : Do not merge a RELOAD_OTHER
instruction with a RELOAD_FOR_OPERAND_ADDRESS instruction.

Obtained from:	gcc 4.3 (rev. r124115: GPLv2)
MFC after:	1 week
2013-12-27 15:15:49 +00:00
Pedro F. Giffuni
99dee3f5ae gcc: Implement -Wmost for compatibility with clang.
This is equivalent to -Wall -Wno-parentheses.

Obtained from:	Apple GCC 4.2 - 5531
MFC after:	1 week
2013-12-26 18:09:16 +00:00
Pedro F. Giffuni
8adb8fac02 gcc: small enhancements for the arm support.
Very small updates: fixes GCC-PR target/31152

Tested by building the cross-compiler.

Obtained from:	gcc 4.3 (rev. r118461, 125973: GPLv2)
MFC after:	2 weeks
2013-12-25 16:01:48 +00:00
Pedro F. Giffuni
29c20022de gcc: Add ability to generate DWARF pubtypes section if
DEBUG_PUBTYPES_SECTION is defined.

Obtained from:	gcc 4.3 (rev. 118826; GPLv2)

MFC after:	2 weeks
2013-12-24 20:42:48 +00:00
Pedro F. Giffuni
860701960d gcc: warnings from -Wformat-security
Minor mismatch in r259666.

Obtained from:	Apple GCC 4.2 - 5646 (Radar 5764921)
MFC after:	1 week
2013-12-21 19:53:51 +00:00
Pedro F. Giffuni
5c3c610835 gcc: clean some warnings from -Wformat-security
Obtained from:	Apple GCC 4.2 - 5646 (Radar 5764921)
MFC after:	1 week
2013-12-20 20:57:13 +00:00
Pedro F. Giffuni
b078889a6b Revert r259619:
Fixes GCC libstdc++/29286

The fix seems to work for amd64 but causes segfaults on powerpc.
At this time gcc is much more important on powerpc than on amd64.

Reported by:	andreast
2013-12-20 18:16:02 +00:00
Pedro F. Giffuni
cc1a345c65 gcc: revert Rvalue references.
They are very useful but at this time I prefer not to figure out
some  minor conflicts with the bigger Apple's blocks support
patch that is being worked on for current.
2013-12-20 18:09:34 +00:00
Pedro F. Giffuni
a5fd0716f8 gcc: merge upstream fix and new feature.
Fix for PR c++/29928

Add support for Rvalue references as described here:
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2118.html

Obtained from:	gcc 4.3 (rev. 124724, 125211; GPLv2)
MFC after:	2 weeks
2013-12-20 16:01:02 +00:00
Pedro F. Giffuni
62f78f3261 gcc: more diff reductions against Apple GCC.
Mostly cosmetical changes to aid further merges.

Obtained from:	gcc 4.3 (rev. 120611, 124839; GPLv2)
MFC after:	1 week
2013-12-20 14:56:52 +00:00
Pedro F. Giffuni
915b4b42ae gcc: backport upstream fix for issue with C++'s placement new
Fixes GCC libstdc++/29286

Obtained from:	gcc 4.3 (rev. 125603, 125653; GPLv2)
MFC after:	2 weeks
2013-12-19 18:27:32 +00:00
Pedro F. Giffuni
505ca70a65 gcc: add Apple compatible -Wnewline-eof
Fix document: "Apple compatible" suits better the origin.

MFC after:	1 week
2013-12-18 15:27:48 +00:00
Pedro F. Giffuni
cfbe5d01ee gcc: add Apple compatible -Wnewline-eof
GCC 4.2 and previous have always warned about
"No newline at end of file".

Upstream GCC removed the warning completely but
Apple made it an optional warning. Adopt it for
compatibility with older GCC and clang.

While here, add comment to complement r258712.

Obtained from:	Apple Inc. (Apple GCC 4.2 - 5531)
MFC after:	1 week
2013-12-18 14:53:36 +00:00
Pedro F. Giffuni
9596cafea0 gcc: point to our address for bug reports.
As recommended by the FSF in gcc/version.c :

"If you distribute a modified version of GCC, please change
this to refer to a document giving instructions for reporting
bugs to you, not us."

MFC after:	2 weeks
2013-12-18 00:10:30 +00:00
Pedro F. Giffuni
2dcaa2963d gcc: small merges from upstream
Solves GCC issues:
PR middle-end/32602
PR middle-end/32603

Updates the to documentation and processing
improvement.

Obtained from:	gcc 4.3 (rev. 119427, 126278, 126422; GPLv2)
MFC after:	2 weeks
2013-12-17 23:31:51 +00:00
Pedro F. Giffuni
5244c21dd0 gcc: fix ICE in rs600 when using -fno-trapping-math.
Solve build issue with previous change.

Obtained from:	gcc 4.3 (rev. 120902; GPLv2)
MFC after:	2 weeks
2013-12-17 21:39:40 +00:00
Pedro F. Giffuni
08fd2c8bd7 gcc: fix ICE in rs600 when using -fno-trapping-math.
Solves GCC-PR target/30485

Obtained from:	gcc 4.3 (rev. 120902; GPLv2)
MFC after:	2 weeks
2013-12-17 20:53:22 +00:00
Dimitry Andric
8b3d3bafec Use correct casts in gcc's emmintrin.h for the first arguments of the
following builtin functions:

* __builtin_ia32_pslldi128() takes __v4si instead of __v8hi
* __builtin_ia32_psllqi128() takes __v2di instead of __v8hi
* __builtin_ia32_psradi128() takes __v4si instead of __v8hi

This should fix the following errors when building the LINT kernel with
gcc:

sys/crypto/aesni/aesni_wrap.c:191: error: incompatible type for argument 1 of
'__builtin_ia32_psradi128'
sys/crypto/aesni/aesni_wrap.c:195: error: incompatible type for argument 1 of
'__builtin_ia32_pslldi128'

MFC after:	3 days
2013-12-08 23:24:32 +00:00
Pedro F. Giffuni
5dab84a07c gcc: new fvisibility-ms-compat option
Obtained from:	gcc 4.3 (rev. 126088; GPLv2)
MFC after:	3 weeks
2013-12-08 03:02:44 +00:00