Backport from mainline
2018-03-19 Jakub Jelinek <jakub@redhat.com>
PR sanitizer/84761
* sanitizer_common/sanitizer_linux_libcdep.cc (__GLIBC_PREREQ):
Define if not defined.
(DL_INTERNAL_FUNCTION): Don't define.
(InitTlsSize): For __i386__ if not compiled against glibc 2.27+
determine at runtime whether to use regparm(3), stdcall calling
convention for older glibcs or normal calling convention for
newer glibcs for call to _dl_get_tls_static_info.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@265164 138bc75d-0d04-0410-961f-82ee72b054a4
Backported from the gcc-7-branch:
2018-05-24 H.J. Lu <hongjiu.lu@intel.com>
PR sanitizer/85835
* sanitizer_common/sanitizer_platform_limits_posix.cc: Don't
include <sys/ustat.h> for Linux.
(SIZEOF_STRUCT_USTAT): New.
(struct_ustat_sz): Use SIZEOF_STRUCT_USTAT for Linux.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@264457 138bc75d-0d04-0410-961f-82ee72b054a4
When one uses ld.gold to build gcc, the thread sanitizer doesn't work,
because gold is more conservative when applying TLS relaxations than
ld.bfd. In this case a missing initial-exec attribute on a declaration
causes gcc to assume the general dynamic model. With ld.bfd this gets
relaxed to initial exec when linking the shared library, so the missing
attribute doesn't matter. But ld.gold doesn't perform this optimization
and this leads to crashes on tsan instrumented binaries.
See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78294
and: https://sourceware.org/bugzilla/show_bug.cgi?id=20805
The fix is easy, just add the missing attribute.
PR sanitizer/78294
* tsan/tsan_rtl.cc: Add missing attribute.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@242482 138bc75d-0d04-0410-961f-82ee72b054a4
* configure.ac: Replace the hard-coded -ldl requirement for
link_sanitizer_common with a configure time check for -ldl.
* configure: Regenerate.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@232385 138bc75d-0d04-0410-961f-82ee72b054a4
New obstack uses sensible types, size_t instead of int for length
params. Since libsanitizer does not use prototypes from obstack.h to
call the real functions, it's necessary to update the libsanitizer
function declarations emitted by the INTERCEPTOR macro.
* sanitizer_common/sanitizer_common_interceptors.inc: Update size
params for _obstack_begin_1, _obstack_begin, _obstack_newchunk
interceptors.
* configure.ac: Substitute OBSTACK_DEFS.
* asan/Makefile.am: Add OBSTACK_DEFS to DEFS.
* tsan/Makefile.am: Likewise.
* configure: Regenerate.
* Makefile.in: Regenerate.
* asan/Makefile.in: Regenerate.
* interception/Makefile.in: Regenerate.
* libbacktrace/Makefile.in: Regenerate.
* lsan/Makefile.in: Regenerate.
* sanitizer_common/Makefile.in: Regenerate.
* tsan/Makefile.in: Regenerate.
* ubsan/Makefile.in: Regenerate.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@229986 138bc75d-0d04-0410-961f-82ee72b054a4
libsanitizer/
PR bootstrap/68041
* configure.ac (link_sanitizer_common): Link against librt only if it
contains shm_open, required by sanitizers.
(CXX_ABI_NEEDED): Remove variable.
* configure: Regenerate.
* ubsan/Makefile.am (libubsan_la_LIBADD): Do not add -lc++abi anymore.
* ubsan/Makefile.in: Regenerate.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@229168 138bc75d-0d04-0410-961f-82ee72b054a4
* sanitizer_common/sanitizer_stacktrace.cc (GetCanonicFrame): Assume we
compiled code with GCC when extracting the caller PC for ARM if no
valid frame pointer is available.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@229115 138bc75d-0d04-0410-961f-82ee72b054a4
PR bootstrap/63888
Reapply:
2015-02-20 Jakub Jelinek <jakub@redhat.com>
* asan/asan_globals.cc (RegisterGlobal): Disable detect_odr_violation
support until it is rewritten upstream.
* c-c++-common/asan/pr63888.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@229114 138bc75d-0d04-0410-961f-82ee72b054a4
PR sanitizer/63958
Reapply:
2014-10-14 David S. Miller <davem@davemloft.net>
* sanitizer_common/sanitizer_platform_limits_linux.cc (time_t):
Define at __kernel_time_t, as needed for sparc.
(struct __old_kernel_stat): Don't check if __sparc__ is defined.
* libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
(__sanitizer): Define struct___old_kernel_stat_sz,
struct_kernel_stat_sz, and struct_kernel_stat64_sz for sparc.
(__sanitizer_ipc_perm): Adjust for sparc targets.
(__sanitizer_shmid_ds): Likewsie.
(__sanitizer_sigaction): Likewise.
(IOC_SIZE): Likewsie.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@229113 138bc75d-0d04-0410-961f-82ee72b054a4
PR sanitizer/67258
* ubsan/ubsan_type_hash.cc: Cherry pick upstream r244101.
Upstraem patch:
commit 1d2477faafda9ad2cc19927b3c31efd22747f013
Author: Alexey Samsonov <vonosmas@gmail.com>
Date: Wed Aug 5 19:35:46 2015 +0000
[UBSan] Fix UBSan-vptr false positive.
Offset from vptr to the start of most-derived object can actually
be positive in some virtual base class vtables.
Patch by Stephan Bergmann!
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@244101 91177308-0d34-0410-b5e6-96231b3b80d8
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227591 138bc75d-0d04-0410-961f-82ee72b054a4
2015-07-29 Markus Trippelsdorf <markus@trippelsdorf.de>
PR sanitizer/63927
* sanitizer_common/sanitizer_stacktrace.h: Use fast unwinder
for PowerPC.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@226338 138bc75d-0d04-0410-961f-82ee72b054a4
PR sanitizer/63927
* sanitizer_common/sanitizer_stacktrace.cc
(BufferedStackTrace::FastUnwindStack): Fix code for PowerPC to
find the link register at an offset of 16 from the base of the
caller's stack frame.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@226335 138bc75d-0d04-0410-961f-82ee72b054a4
Reapply:
2014-10-14 David S. Miller <davem@davemloft.net>
* sanitizer_common/sanitizer_platform_limits_linux.cc (time_t):
Define at __kernel_time_t, as needed for sparc.
(struct __old_kernel_stat): Don't check if __sparc__ is defined.
* libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
(__sanitizer): Define struct___old_kernel_stat_sz,
struct_kernel_stat_sz, and struct_kernel_stat64_sz for sparc.
(__sanitizer_ipc_perm): Adjust for sparc targets.
(__sanitizer_shmid_ds): Likewsie.
(__sanitizer_sigaction): Likewise.
(IOC_SIZE): Likewsie.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@221283 138bc75d-0d04-0410-961f-82ee72b054a4
* wide-int.cc (wi::mul_internal): For the umul_ppmm optimization,
if val[1] < 0, clear also val[2] and return 3.
* gcc.c-torture/execute/pr65170.c: New test.
* gcc.dg/tree-ssa/vrp96.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@220931 138bc75d-0d04-0410-961f-82ee72b054a4
* asan/asan_globals.cc (RegisterGlobal): Disable detect_odr_violation
support until it is rewritten upstream.
* c-c++-common/asan/pr63888.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@220919 138bc75d-0d04-0410-961f-82ee72b054a4
