Currently LoadedModule provides max_executable_address.
Replace it with just max_address.
It's only used for printing for human inspection and since
modules are non-overlapping, max_address is as good as max_executable_address
for matching addresses/PCs against modules (I assume it's used for that).
On the hand, max_address is more general and can used to match e.g. data addresses.
I want to use it for that purpose in future changes.
Reviewed By: melver
Differential Revision: https://reviews.llvm.org/D122906
Update the hardware CRC32 logic in scudo to support using `-mcrc32`
instead of `-msse4.2`. The CRC32 intrinsics use the former flag
in the newer compiler versions, e.g. in clang since 12fa608af44a.
With these versions of clang, passing `-msse4.2` is insufficient
to enable the instructions and causes build failures when `-march` does
not enable CRC32 implicitly:
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-14.0.0/work/compiler-rt/lib/scudo/scudo_crc32.cpp:20:10: error: always_inline function '_mm_crc32_u32' requires target feature 'crc32', but would be inlined into function 'computeHardwareCRC32' that is compiled without support for 'crc32'
return CRC32_INTRINSIC(Crc, Data);
^
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-14.0.0/work/compiler-rt/lib/scudo/scudo_crc32.h:27:27: note: expanded from macro 'CRC32_INTRINSIC'
# define CRC32_INTRINSIC FIRST_32_SECOND_64(_mm_crc32_u32, _mm_crc32_u64)
^
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-14.0.0/work/compiler-rt/lib/scudo/../sanitizer_common/sanitizer_platform.h:132:36: note: expanded from macro 'FIRST_32_SECOND_64'
# define FIRST_32_SECOND_64(a, b) (a)
^
1 error generated.
For backwards compatibility, use `-mcrc32` when available and fall back
to `-msse4.2`. The `<smmintrin.h>` header remains in use as it still
works and is compatible with GCC, while clang's `<crc32intrin.h>`
is not.
Use __builtin_ia32*() rather than _mm_crc32*() when using `-mcrc32`
to preserve compatibility with GCC. _mm_crc32*() are aliases
to __builtin_ia32*() in both compilers but GCC requires `-msse4.2`
for the former, while both use `-mcrc32` for the latter.
Originally reported in https://bugs.gentoo.org/835870.
Differential Revision: https://reviews.llvm.org/D122789
This reverts commit 09b53121c323f260ab97cecd067d4e7b3be1bf7c.
Breaks the build with GCC 11.2 on x86_64:
In file included from /home/npopov/repos/llvm-project/compiler-rt/lib/scudo/scudo_crc32.h:27,
from /home/npopov/repos/llvm-project/compiler-rt/lib/scudo/scudo_crc32.cpp:14:
/usr/lib/gcc/x86_64-redhat-linux/11/include/smmintrin.h: In function ‘__sanitizer::u32 __scudo::computeHardwareCRC32(__sanitizer::u32, __sanitizer::uptr)’:
/usr/lib/gcc/x86_64-redhat-linux/11/include/smmintrin.h:846:1: error: inlining failed in call to ‘always_inline’ ‘long long unsigned int _mm_crc32_u64(long long unsigned int, long long unsigned int)’: target specific option mismatch
846 | _mm_crc32_u64 (unsigned long long __C, unsigned long long __V)
Update the hardware CRC32 logic in scudo to support using `-mcrc32`
instead of `-msse4.2`. The CRC32 intrinsics use the former flag
in the newer compiler versions, e.g. in clang since 12fa608af44a.
With these compilers, passing `-msse4.2` is insufficient to enable
the instructions and causes build failures when `-march` does not enable
CRC32:
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-14.0.0/work/compiler-rt/lib/scudo/scudo_crc32.cpp:20:10: error: always_inline function '_mm_crc32_u32' requires target feature 'crc32', but would be inlined into function 'computeHardwareCRC32' that is compiled without support for 'crc32'
return CRC32_INTRINSIC(Crc, Data);
^
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-14.0.0/work/compiler-rt/lib/scudo/scudo_crc32.h:27:27: note: expanded from macro 'CRC32_INTRINSIC'
# define CRC32_INTRINSIC FIRST_32_SECOND_64(_mm_crc32_u32, _mm_crc32_u64)
^
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-14.0.0/work/compiler-rt/lib/scudo/../sanitizer_common/sanitizer_platform.h:132:36: note: expanded from macro 'FIRST_32_SECOND_64'
# define FIRST_32_SECOND_64(a, b) (a)
^
1 error generated.
For backwards compatibility, use `-mcrc32` when available and fall back
to `-msse4.2`. The `<smmintrin.h>` header remains in use as it still
works and is compatible with GCC, while clang's `<crc32intrin.h>`
is not.
Originally reported in https://bugs.gentoo.org/835870.
Differential Revision: https://reviews.llvm.org/D122789
dd9173420f06 (Add clear_cache implementation for ppc64. Fix buffer to
meet ppc64 alignment., 2017-07-28), adds an implementation for
__builtin___clear_cache on powerpc64, which was promptly ammended to
also be used with big endian mode in f67036b62c0c (This ppc64 implementation
of clear_cache works for both big and little endian., 2017-08-02)
clang will use this implementation for it's builtin on FreeBSD and result
in an abort() in the cases where 32-bit generation was requested (ex in
macppc or when the big endian powerpc64 build was done with "-m32") and as
reported[1] recently with pcre2, but there is no reason why the same code
couldn't be used in those cases, so use instead the more generic identifier
for the PowerPC architecture.
While at it, update the comment to reflect that POWER8/9 have a 128 byte
wide cache line and so the code could instead use 64 byte windows instead
but that possible optimization has been punted for now.
[1] https://github.com/PhilipHazel/pcre2/issues/92
Reviewed By: jhibbits, #powerpc, MaskRay
Differential Revision: https://reviews.llvm.org/D122640
* Support compiling with clang-5
* Check for `LLVM_DISABLE_ASSEMBLY_FILES` and have it set by
`compiler-rt/lib/sanitizer_common/symbolizer/scripts/build_symbolizer.sh`
which wants to receive and process only bitcode files.
This is a re-land of https://reviews.llvm.org/D86171 with fix.
Fuchsia's system libraries are instrumented and use the lsan
allocator for internal purposes. So leak checking needs to run
after all atexit hooks and after the system libraries' internal
exit-time hooks. The <zircon/sanitizer.h> hook API calls the
__sanitizer_process_exit_hook function at exactly the right time.
Reviewed By: vitalybuka
Differential Revision: https://reviews.llvm.org/D88248
Add include to resolve compiler warning about no previous extern declaration for non-static HashAlgorithm
Differential Revision: https://reviews.llvm.org/D122630
Compiler warns about HeaderPos possibly being uninitialized which should not be possible, but just initialize it anyway
Differential Revision: https://reviews.llvm.org/D122632
Use Fuchsia's zx_system_get_features API to determine
whether LSE atomics are available on the machine.
Reviewed By: abrachet
Differential Revision: https://reviews.llvm.org/D118839
This has never really been used in practice. Fuchsia is moving
away from the support this requires, so don't use it.
Reviewed By: phosek
Differential Revision: https://reviews.llvm.org/D122500
After landing D121813 the binary size increase introduced by this change can be minimized by using --gc-sections link options. D121813 allows each individual callbacks to be optimized out if not used.
Reviewed By: vitalybuka, MaskRay
Differential Revision: https://reviews.llvm.org/D122407
Currently, we only print how threads involved in data race are created from their parent threads.
Add a runtime flag 'print_full_thread_history' to print thread creation stacks for the threads involved in the data race and their ancestors up to the main thread.
Reviewed By: dvyukov
Differential Revision: https://reviews.llvm.org/D122131
For errno spoiling reports we only print the stack
where the signal handler is invoked. And the top
frame is the signal handler function, which is supposed
to give the info for debugging.
But in same cases the top frame can be some common thunk,
which does not give much info. E.g. for Go/cgo it's always
runtime.cgoSigtramp.
Print the signal number.
This is what we can easily gather and it may give at least
some hints regarding the issue.
Reviewed By: melver, vitalybuka
Differential Revision: https://reviews.llvm.org/D121979
Explicitly specify the class name to avoid selecting the wrong Run function, and inherit from the correct Test parent
Differential Revision: https://reviews.llvm.org/D121854
Tests can register multiple allocators, but only the first will initialize since it initializes the TSDRegistrySharedT. Then, destruction of subsequent allocator may end up unmapping a nullptr PrimaryBase with non-zero PrimarySize.
Differential Revision: https://reviews.llvm.org/D121858
glibc >= 2.33 uses shared functions for stat family functions.
D111984 added support for non-64 bit variants but they
do not appear to be enough as we have been noticing msan
errors on 64-bit stat variants on Chrome OS.
Reviewed By: vitalybuka
Differential Revision: https://reviews.llvm.org/D121652
If sanitizer cannot determine name of the module it
will use "<unknown module>". Then it can be suppressed
if needed.
Reviewed By: kda
Differential Revision: https://reviews.llvm.org/D121674
Fix darwin interface test after D121464. asan_rtl_x86_64.S is not
available on Darwin.
Reviewed By: kstoimenov
Differential Revision: https://reviews.llvm.org/D121636
For ppc64 PIE, it seems that [0xa00000000000,0xc00000000000) may be occupied
which will lead to a segfault in certain kernel configurations
(clang-ppc64le-rhel). Use the `!kUsingConstantSpaceBeg` code path like Fuchsia.
Reviewed By: jsji
Differential Revision: https://reviews.llvm.org/D121257
.thumb_func was not switching mode until [1]
so it did not show up but now that .thumb_func (without argument) is
switching mode, its causing build failures on armv6 ( rpi0 ) even when
build is explicitly asking for this file to be built with -marm (ARM
mode), therefore use DEFINE_COMPILERRT_FUNCTION macro to add function
header which considers arch and mode from compiler cmdline to decide if
the function is built using thumb mode or arm mode.
[1] https://reviews.llvm.org/D101975
Note that it also needs https://reviews.llvm.org/D99282
Reviewed By: peter.smith, MaskRay
Differential Revision: https://reviews.llvm.org/D104183
This is a part of optimized callback reverts. This is needed to export the callbacks from the rt-asan libraries.
Reviewed By: kstoimenov
Differential Revision: https://reviews.llvm.org/D121464
