__msan_unpoison uses intercepted memset which currently leads to a SEGV
when linking with libc++ under CentOS 7.
Differential Revision: http://reviews.llvm.org/D17263
llvm-svn: 261073
FreeBSD also needs to have sanitizer_linux_libcdep.cc included,
otherwise linking will fail with "undefined reference to
`__sanitizer::GetRSS()'".
While here, tabify the FreeBSD part, similar to the other parts.
llvm-svn: 260839
r260695 caused extra push/pop instruction pair in __tsan_read1
implementation. Still, that change in InstCombine is believed to
be good, as it reduces the number of instructions performed.
Adjust the expectations to match the newly generated code.
llvm-svn: 260775
Summary:
In some cases stack pointer register (SP) doesn't point into the thread
stack: e.g. if one is using swapcontext(). In this case LSan
conservatively tries to scan the whole thread stack for pointers.
However, thread stack (at least in glibc implementation) may also
include guard pages, causing LSan to crash when it's reading from them.
One of the solutions is to use a pthread_attr_getguardsize() to adjust
the calculated stack boundaries. However, here we're just using
IsAccessibleMemoryRange to skip guard pages and make the code (slightly)
less platform-specific.
Reviewers: kcc
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D17116
llvm-svn: 260554
It thinks that these functions don't match the function pointer type
that they are passed with:
GCDAProfiling.c(578) : warning C4113: 'void (__cdecl *)()' differs in parameter lists from 'void (__cdecl *)(void)'
GCDAProfiling.c(579) : warning C4113: 'void (__cdecl *)()' differs in parameter lists from 'void (__cdecl *)(void)'
GCDAProfiling.c(580) : warning C4113: 'void (__cdecl *)()' differs in parameter lists from 'void (__cdecl *)(void)'
llvm-svn: 260475
that's not true in general. Instead, use a preference order to pick the
standard C++ signature 'char*(char*, int)' where possible and fall back to the
C signature 'char*(const char*, int)' only when it's unavailable.
llvm-svn: 260425
This reduces sizes of instrumented object files, final binaries,
process images, and raw profile data.
The format of the indexed profile data remain the same.
Differential Revision: http://reviews.llvm.org/D16388
llvm-svn: 260118
This is a compiler-rt part of this http://reviews.llvm.org/D15642 patch. Here,
we add a new approach for ODR violation detection.
Instead of using __asan_region_is_poisoned(g->beg, g->size_with_redzone) on
global address (that would return false now due to using private alias), we can
use new globally visible indicator symbol to perform the check.
Differential Revision: http://reviews.llvm.org/D15644
llvm-svn: 260076
The "sanitizer-windows" buildbot has been failing for two days because of this:
FAILED: cl.exe asan_report.cc
asan_scariness_score.h(60) : error C2536:
'__asan::ScarinessScore::__asan::ScarinessScore::descr' :
cannot specify explicit initializer for arrays
asan_scariness_score.h(60) : see declaration of '__asan::ScarinessScore::descr'
llvm-svn: 260059
On FreeBSD, the uc_mcontext member of ucontext_t has a member called
mc_err, which corresponds to the Linux member gregs[REG_ERR].
Reviewed by: rdivacky@FreeBSD.org
llvm-svn: 260046
The type of size and align in struct __emutls_control must be
typedef unsigned int gcc_word __attribute__((mode(word)));
to match GCC. When gcc_word is larger than size_t, which is the case
for x32, the upper extra bits are all zeros. We can use variables of
size_t to operate on size and align.
Fix one trivial C99 warning about mixed declaration and code.
Differential Revision: http://reviews.llvm.org/D16886
llvm-svn: 259824
Avoid crashing when printing diagnostics for vtable-related CFI
errors. In diagnostic mode, the frontend does an additional check of
the vtable pointer against the set of all known vtable addresses and
lets the runtime handler know if it is safe to inspect the vtable.
http://reviews.llvm.org/D16824
llvm-svn: 259717
Summary:
This is a workaround to a problem in the 3.8 release that affects MIPS and
possibly other targets where the default is not supported but a sibling is
supported.
When TSAN_SUPPORTED_ARCH is not empty, cmake currently attempts to build a
tsan'd libcxx as well as test tsan for the default target regardless of whether
the default target is supported or not. This causes problems on MIPS32 since
tsan is supported for MIPS64 but not MIPS32.
This patch causes cmake to only build the libcxx and run the lit test-suite for
archictures in ${TSAN_SUPPORTED_ARCH}
This re-commit fixes an issue where 'check-tsan' continued to look for the
tsan'd libc++ in the directory it used to be built in.
Reviewers: hans, samsonov
Subscribers: tberghammer, llvm-commits, danalbert, srhines, dvyukov
Differential Revision: http://reviews.llvm.org/D16685
llvm-svn: 259542
Summary:
Since the prototype of mremap is
```
void *mremap(void *old_address, size_t old_size, size_t new_size,
int flags, ... /* void *new_address*/);
```
we need to cast new_address to void * when calling mremap. Otherwise,
the wrong value will be passed to mremap on x32.
Patch by H.J Lu!
Reviewers: kcc, eugenis, samsonov
Subscribers: samsonov, llvm-commits
Differential Revision: http://reviews.llvm.org/D16805
llvm-svn: 259540
check-tsan does not pick up the correct libc++.so. It succeeded on my machine
by picking up the libc++.so that was built before making this change.
llvm-svn: 259519
Summary:
This is a workaround to a problem in the 3.8 release that affects MIPS and
possibly other targets where the default is not supported but a sibling is
supported.
When TSAN_SUPPORTED_ARCH is not empty, cmake currently attempts to build a
tsan'd libcxx as well as test tsan for the default target regardless of whether
the default target is supported or not. This causes problems on MIPS32 since
tsan is supported for MIPS64 but not MIPS32.
This patch causes cmake to only build the libcxx and run the lit test-suite for
archictures in ${TSAN_SUPPORTED_ARCH}
Reviewers: hans, samsonov
Subscribers: tberghammer, llvm-commits, danalbert, srhines, dvyukov
Differential Revision: http://reviews.llvm.org/D16685
llvm-svn: 259512
This patch adds support for expanding "%h" out to the machine hostname
in the LLVM_PROFILE_FILE environment variable.
Patch by Daniel Waters!
Differential Revision: http://reviews.llvm.org/D16371
llvm-svn: 259272
Ed Maste