jakub [Thu, 13 Oct 2016 10:42:36 +0000 (10:42 +0000)]
PR c/77946
* tree.h (FALLTHROUGH_LABEL_P): Use private_flag
instead of public_flag.
* varasm.c (default_binds_local_p_3): Formatting fix.
* c-c++-common/Wimplicit-fallthrough-34.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@241094
138bc75d-0d04-0410-961f-
82ee72b054a4
git-id:
c0f4422f26a07270ec6027df89b731e7b9977e14
Change-Id: Ied47aa4857f185e104b3ff29daf46ff11aee8f7d
Signed-off-by: Slava Barinov <v.barinov@samsung.com>
Martin Liska [Wed, 29 Jun 2016 12:12:56 +0000 (14:12 +0200)]
Mark -fstack-protect as optimization flag.
PR middle-end/71585
* common.opt (flag_stack_protect): Mark the flag as optimization
flag.
* ipa-inline-transform.c (inline_call): Remove unnecessary call
of build_optimization_node.
* gcc.dg/pr71585.c: New test.
* gcc.dg/pr71585-2.c: New test.
* gcc.dg/pr71585-3.c: New test.
From-SVN: r237845
Cherry-picked from upstream:
5c846a81ffb1fa4464f89d2884c85a690d75adf0
Change-Id: I07715b3b6c9b0dfd4ceca4e97c795108b70de9aa
Slava Barinov [Wed, 2 Sep 2020 11:40:15 +0000 (14:40 +0300)]
packaging: Enable configure-dumper
This enables running configure-dumper tool which allows comparison of toolchain
configuration between different builds
Change-Id: Icb04212f170c45c6c8bc3bdafe7aa4b9ce2d9efc
Signed-off-by: Slava Barinov <v.barinov@samsung.com>
(cherry picked from commit
71da6dd41f3c42924ed1da0743579aced450cca1)
Dongkyun Son [Mon, 4 Nov 2019 02:12:42 +0000 (11:12 +0900)]
Merge branch 'tizen_base' into tizen_5.5_base
- New sanitizer option to disable dlclose processing
- Enable linaro-gcc bootstrap with asan config.
- * libbacktrace/backtrace-rename.h (backtrace_uncompress_zdebug):
Change-Id: I5356ef5bb8d3ecdbfaa1eaffd690ab71feb129ee
Signed-off-by: Dongkyun Son <dongkyun.s@samsung.com>
Mikhail Kashkarov [Mon, 17 Jun 2019 17:27:16 +0000 (20:27 +0300)]
New sanitizer option to disable dlclose processing
This is a simple workaround for https://github.com/google/sanitizers/issues/89:
Avoid <unknown module> frames for functions from unloaded shared library.
Rtld will unload dynamically loaded shared objects, we are not preventing
unloading in this, just deferring it.
This could hide potential bugs like accesing library range addressing after
dlclose or some tricky cases for functions with __attribute__((__destructor__))
+ code that relies on explicit call to dlclose.
Change-Id: I14fb2b8846350e07040d6f9215b936d9b2956faa
Signed-off-by: Mikhail Kashkarov <m.kashkarov@partner.samsung.com>
Dongkyun Son [Fri, 1 Nov 2019 06:24:56 +0000 (06:24 +0000)]
Merge "Enable linaro-gcc bootstrap with asan config." into tizen_base
Dongkyun Son [Fri, 1 Nov 2019 06:24:50 +0000 (06:24 +0000)]
Merge " * libbacktrace/backtrace-rename.h (backtrace_uncompress_zdebug): Define." into tizen_base
Mikhail Kashkarov [Thu, 19 Sep 2019 15:13:05 +0000 (18:13 +0300)]
Adjust ISan overflow-mul testcase for x32 bits
2019-09-19 Mikhail Kashkarov <m.kashkarov@partner.samsung.com>
* c-c++-common/isan/overflow-mul.c: Support x32 archs.
Change-Id: Icdf0a59ed97aa2df8b3107a6c8f83f28d295236d
Mikhail Kashkarov [Thu, 19 Sep 2019 13:29:10 +0000 (16:29 +0300)]
Handle instrumented expr for unsigned-integer-overflow
2019-09-19 Mikhail Kashkarov <m.kashkarov@partner.samsung.com>
c-family/
* c-ubsan.c (ubsan_compound_instrumented_expr_p): New function.
* c-ubsan.h (ubsan_compound_instrumented_expr_p): New prototype.
c/
* c-typeck.c (build_binary_op): Handle instrumented expr for
SANITIZE_UI_OVERFLOW.
cp/
* typeck.c (cp_build_binary_op): Same.
testsuite/
* c-c++-common/isan/invalid-ui-oveflow-1.c: New testcase.
Change-Id: I8e0fbf443da866bf8756d848fd7bf2ab7e858f06
Mikhail Kashkarov [Thu, 1 Aug 2019 13:34:10 +0000 (16:34 +0300)]
Enable linaro-gcc bootstrap with asan config.
We couldn't verify linaro-gcc bootstrap with dynmaic ASan as we don't update
library pathes while running executables, so the compilation is performed with
the new instrumentations and the old external runtime from the build environment
is used during run.
And we'll also get runtime conflicts with 2 libasan.so version inside sanitized
environment, so it doesn't make sense to define 'asanbootstrap' with 'asan'.
If we really do want to test dynamic ASan, we could add the following to the
POSTSTAGE1_LDFLAGS:
"-rpath$$r/prev-$(TARGET_SUBDIR)/libsanitizer/asan/.libs"
and keep additional rpathes for final binaries or use patchelf tool.
Change-Id: I8783f0395521126f8e01125e24bc40ed457bc008
jakub [Mon, 2 Oct 2017 14:00:53 +0000 (14:00 +0000)]
* libbacktrace/backtrace-rename.h (backtrace_uncompress_zdebug):
Define.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@253351
138bc75d-0d04-0410-961f-
82ee72b054a4
(cherry-picked
8c7d7ad76d88b7af2fead665fb4c5dcaab8a4124)
Change-Id: I0a6f55dac17647ee34757a20a2e48541091a997d
Vyacheslav Cherkashin [Mon, 26 Aug 2019 15:34:02 +0000 (18:34 +0300)]
libsanitizer: Make delete safe via 'pointer_is_mine'
* libsanitizer/asan/asan_new_delete.cc: check pointers
before calling forwarding.
Part 2 for:
30255a5854a11a5e67c13b640d65a80411a34a39
This change will lead to possible failures inside glibc in cases of
delete'ing wild pointers.
In usual case ASan should handle this case and provide appropriate
backtrace and error report, but this mode is not compatible with
interceptor switching functional, so we explicitly disabling it.
Change-Id: Ic1f2a70bbc156420c27067bae8eb5097bbc477d6
Signed-off-by: Vyacheslav Cherkashin <v.cherkashin@samsung.com>
Signed-off-by: Slava Barinov <v.barinov@samsung.com>
Mikhail Kashkarov [Wed, 21 Aug 2019 21:20:39 +0000 (00:20 +0300)]
Fix up LSan allocator for x86_64/aarch64
Keep LSan assumption for allocator cache constrains.
Change-Id: I84ec778233a7285cd6da2e322de5db3ac0a9cb44
ebotcazou [Mon, 23 Apr 2018 20:19:39 +0000 (20:19 +0000)]
PR middle-end/85496
* expr.c (store_field): In the bitfield case, if the value comes from
a function call and is returned in registers by means of a PARALLEL,
do not change the mode of the temporary unless BLKmode and VOIDmode.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@259574
138bc75d-0d04-0410-961f-
82ee72b054a4
This Fix is from gcc-mainline (branch for gcc-6)
Bug report: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85496
Fix report: https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=259577
Related issue of tensorflow: https://github.com/tensorflow/tensorflow/issues/25323
Related build errors in Tizen (tensorflow / aarch64):
[ 3281s] exec env - \
[ 3281s] LD_LIBRARY_PATH=/usr/lib64 \
[ 3281s] PATH=/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/home/abuild/rpmbuild/BUILD/tensorflow-v1.13.1 \
[ 3281s] PWD=/proc/self/cwd \
[ 3281s] PYTHON_BIN_PATH=/bin/python \
[ 3281s] PYTHON_LIB_PATH=/usr/lib/python2.7/site-packages \
[ 3281s] TF_DOWNLOAD_CLANG=0 \
[ 3281s] TF_NEED_CUDA=0 \
[ 3281s] TF_NEED_OPENCL_SYCL=0 \
[ 3281s] TF_NEED_ROCM=0 \
[ 3281s] /bin/gcc -U_FORTIFY_SOURCE -fstack-protector -Wall -B/bin -B/usr/bin -Wunused-but-set-parameter -Wno-free-nonheap-object -fno-omit-frame-pointer -g0 -O2 '-D_FORTIFY_SOURCE=1' -DNDEBUG -ffunction-sections -fdata-sections '-std=c++0x' -MD -MF bazel-out/aarch64-opt/bin/tensorflow/compiler/xla/service/cpu/_objs/runtime_conv2d/runtime_conv2d.pic.d '-frandom-seed=bazel-out/aarch64-opt/bin/tensorflow/compiler/xla/service/cpu/_objs/runtime_conv2d/runtime_conv2d.pic.o' -fPIC -DEIGEN_MPL2_ONLY '-DEIGEN_MAX_ALIGN_BYTES=64' '-DEIGEN_HAS_TYPE_TRAITS=0' -iquote . -iquote bazel-out/aarch64-opt/genfiles -iquote bazel-out/aarch64-opt/bin -iquote external/nsync -iquote bazel-out/aarch64-opt/genfiles/external/nsync -iquote bazel-out/aarch64-opt/bin/external/nsync -iquote external/bazel_tools -iquote bazel-out/aarch64-opt/genfiles/external/bazel_tools -iquote bazel-out/aarch64-opt/bin/external/bazel_tools -iquote external/eigen_archive -iquote bazel-out/aarch64-opt/genfiles/external/eigen_archive -iquote bazel-out/aarch64-opt/bin/external/eigen_archive -iquote external/local_config_sycl -iquote bazel-out/aarch64-opt/genfiles/external/local_config_sycl -iquote bazel-out/aarch64-opt/bin/external/local_config_sycl -isystem external/nsync/public -isystem bazel-out/aarch64-opt/genfiles/external/nsync/public -isystem bazel-out/aarch64-opt/bin/external/nsync/public -isystem external/eigen_archive -isystem bazel-out/aarch64-opt/genfiles/external/eigen_archive -isystem bazel-out/aarch64-opt/bin/external/eigen_archive '-march=armv8-a+fp+simd+crc+crypto' -Wno-sign-compare '-D_GLIBCXX_USE_CXX11_ABI=0' '-std=c++11' -DEIGEN_AVOID_STL_ARRAY -fno-canonical-system-headers -Wno-builtin-macro-redefined '-D__DATE__="redacted"' '-D__TIMESTAMP__="redacted"' '-D__TIME__="redacted"' -c tensorflow/compiler/xla/service/cpu/runtime_conv2d.cc -o bazel-out/aarch64-opt/bin/tensorflow/compiler/xla/service/cpu/_objs/runtime_conv2d/runtime_conv2d.pic.o)
[ 3281s] In file included from external/eigen_archive/Eigen/Core:296:0,
[ 3281s] from ./third_party/eigen3/Eigen/Core:1,
[ 3281s] from ./tensorflow/compiler/xla/service/cpu/runtime_conv2d.h:19,
[ 3281s] from tensorflow/compiler/xla/service/cpu/runtime_conv2d.cc:16:
[ 3281s] external/eigen_archive/Eigen/src/Core/products/GeneralBlockPanelKernel.h: In member function 'void Eigen::internal::gebp_kernel<LhsScalar, RhsScalar, Index, DataMapper, mr, nr, ConjugateLhs, ConjugateRhs>::operator()(const DataMapper&, const LhsScalar*, const RhsScalar*, Index, Index, Index, Eigen::internal::gebp_kernel<LhsScalar, RhsScalar, Index, DataMapper, mr, nr, ConjugateLhs, ConjugateRhs>::ResScalar, Index, Index, Index, Index) [with LhsScalar = Eigen::half; RhsScalar = Eigen::half; Index = long int; DataMapper = Eigen::internal::blas_data_mapper<Eigen::half, long int, 0, 0>; int mr = 2; int nr = 4; bool ConjugateLhs = false; bool ConjugateRhs = false]':
[ 3281s] external/eigen_archive/Eigen/src/Core/products/GeneralBlockPanelKernel.h:1879:3: internal compiler error: in emit_move_insn, at expr.c:3547
[ 3281s] }
[ 3281s] ^
[ 3281s] Please submit a full bug report,
[ 3281s] with preprocessed source if appropriate.
[ 3281s] See <http://bugs.tizen.org/> for instructions.
[ 3284s] Target //tensorflow/tools/lib_package:libtensorflow failed to build
[ 3284s] INFO: Elapsed time: 3254.811s, Critical Path: 366.23s, Remote (0.00% of the time): [queue: 0.00%, setup: 0.00%, process: 0.00%]
[ 3284s] INFO: 1643 processes: 1643 local.
[ 3284s] FAILED: Build did NOT complete successfully
[ 3284s] FAILED: Build did NOT complete successfully
[ 3285s] error: Bad exit status from /var/tmp/rpm-tmp.YdwJ8i (%build)
Because this fix requires yet another older fix, part of the older fix
is merged from the following mainline commit.
Author: rsandifo <rsandifo@
138bc75d-0d04-0410-961f-
82ee72b054a4> 2017-08-30 20:10:44
Committer: rsandifo <rsandifo@
138bc75d-0d04-0410-961f-
82ee72b054a4> 2017-08-30 20:10:44
Parent:
2cf1bb2548bf9ce652251e4f7870e67b080acf56 ([18/77] Make int_mode_for_mode return an opt_scalar_int_mode)
Child:
8b449599ee018840a92725b17e06374b0f8787c0 ([20/77] Replace MODE_INT checks with is_int_mode)
[19/77] Add a smallest_int_mode_for_size helper function
Change-Id: I5e22ed657099d7a1ac19b451c436f8e4831c6c76
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Vyacheslav Cherkashin [Thu, 18 Jul 2019 14:47:42 +0000 (17:47 +0300)]
libsanitizer: Make malloc/realloc/free safe via 'pointer_is_mine'
* libsanitizer/asan/asan_malloc_linux.cc: check pointers
before calling forwarding.
This change will lead to possible failures inside glibc in cases of free()'ing
wild pointers.
In usual case ASan should handle this case and provide appropriate backtrace
and error report, but this mode is not compatible with interceptor switching
functional, so we explicitly disabling it.
Change-Id: I8fc40aad4d9e6094301f6b3f3060b99140a191da
Signed-off-by: Vyacheslav Cherkashin <v.cherkashin@samsung.com>
Slava Barinov [Wed, 24 Jul 2019 13:59:42 +0000 (16:59 +0300)]
libsanitizer: new libasansi.so for ASan with Switchable Interceptors
* packaging/linaro-gcc.spec: libasansi.so added to libasan
* libsanitizer/asan/Makefile.am: new file libasansi.so
* libsanitizer/sanitizer_common/Makefile.am: new file
libsanitizer_commonsi.so
* libsanitizer/configure.ac: same
* libsanitizer/configure: regenerated
* libsanitizer/Makefile.in: same
* libsanitizer/asan/Makefile.in: same
* libsanitizer/esan/Makefile.in: same
* libsanitizer/interception/Makefile.in: same
* libsanitizer/libbacktrace/Makefile.in: same
* libsanitizer/lsan/Makefile.in: same
* libsanitizer/sanitizer_common/Makefile.in: same
* libsanitizer/tsan/Makefile.in: same
* libsanitizer/ubsan/Makefile.in: same
* libsanitizer/sanitizer_common/Makefile.in: same
* packaging/gcc-aarch64.spec: same
* packaging/gcc-armv7hl.spec: same
* packaging/gcc-armv7l.spec : same
Change-Id: I8d842296e0aeacdfebb6df732eb98e624568979f
Signed-off-by: Slava Barinov <v.barinov@samsung.com>
Slava Barinov [Wed, 3 Jul 2019 13:21:19 +0000 (16:21 +0300)]
libsanitizer: add flag to control default value of calls forwarding.
* libsanitizer/sanitizer_common/sanitizer_flags.inc: declare flag
enable_interceptors
* libsanitizer/asan/asan_interceptors.cc: disable interceptors if
needed
* libsanitizer/asan/asan_flags.cc: report if interceptors are
disabled
Change-Id: I481c519a7568d3b56a9bfa757994aa3b3c2a94d1
Signed-off-by: Slava Barinov <v.barinov@samsung.com>
Signed-off-by: Andrey Drobyshev <a.drobyshev@samsung.com>
Slava Barinov [Fri, 26 Jul 2019 08:51:56 +0000 (11:51 +0300)]
testsuite: Fix pr64820.c for new ASan output format
* gcc/testsuite/c-c++-common/asan/pr64820.c: Fix lines to scan
Change-Id: I891b5aaad63d5f9c6894974b994c32decc92e786
Signed-off-by: Slava Barinov <v.barinov@samsung.com>
Andrey Drobyshev [Mon, 20 May 2019 17:48:56 +0000 (20:48 +0300)]
libsanitizer: use calls forwarding mechanism in common and asan interceptors.
* libsanitizer/asan/asan_allocator.cc: add (asan_pointer_is_mine)
* libsanitizer/asan/asan_allocator.h: declare (asan_pointer_is_mine)
* libsanitizer/asan/asan_interceptors.h: declare
(InitializeMallocInterceptors), (InitializeNewDeleteInterceptors)
* libsanitizer/asan/asan_new_delete.cc: intercept various new and
delete operators. Implement (InitializeNewDeleteInterceptors)
* libsanitizer/asan/asan_interceptors.cc: use MAYBE_FORWARD_TO_REAL
in interceptors
* libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:
likewise
* libsanitizer/asan/asan_malloc_linux.cc: likewise. Also implement
(InitializeMallocInterceptors)
* libsanitizer/asan/asan_mac.cc: add empty (InitializeMallocInterceptors)
* libsanitizer/asan/asan_win.cc: likewise
Change-Id: I53d8b5d8476716282fd1438cdafd7fcf030291ab
Signed-off-by: Andrey Drobyshev <a.drobyshev@samsung.com>
Andrey Drobyshev [Thu, 25 Apr 2019 09:20:00 +0000 (12:20 +0300)]
libsanitizer: introduce calls forwarding mechanism.
* libsanitizer/sanitizer_common/Makefile.am: add file
sanitizer_forward_calls.cc
* libsanitizer/sanitizer_common/Makefile.in: regenerated
* libsanitizer/sanitizer_common/sanitizer_forward_calls.cc: new file,
implementation of calls forwarding interface
* libsanitizer/sanitizer_common/sanitizer_forward_calls.h: new file,
macro MAYBE_FORWARD_TO_REAL used in interceptors
* libsanitizer/sanitizer_common/sanitizer_interface_internal.h:
add declarations of interface functions for enabling/disabling
interceptors
* libsanitizer/sanitizer_common/sanitizer_internal_defs.h: add
SANITIZER_CALLS_FORWARDING macro
Change-Id: I41367e63283798920a4cabc8a01f0192146b9057
Signed-off-by: Andrey Drobyshev <a.drobyshev@samsung.com>
Mikhail Kashkarov [Thu, 25 Jul 2019 18:14:24 +0000 (21:14 +0300)]
Fix annobin merge unresolved conflicts
Change-Id: If4169ae791fa6f3cdc1dec358cfdde80a2ae7b96
Mikhail Kashkarov [Fri, 12 Jul 2019 17:55:45 +0000 (20:55 +0300)]
Add support for compiler instrumentation with non-default ASan scale
* asan.c (asan_clear_shadow): Adjust for the custom ASAN_SHADOW_SHIFT.
(asan_redzone_buffer::emit_redzone_byte): Same.
(asan_redzone_buffer): New assert.
(asan_emit_stack_protection): New asserts for custom ASAN_SHADOW_SHIFT.
(asan_emit_stack_protection): Additional redzone flush for the high shadow
granularities.
(asan_expand_check_ifn): Adjust for custom ASAN_SHADOW_SHIFT.
(asan_expand_check_ifn): Same.
* asan.h (ASAN_RED_ZONE_SIZE): Adjust for custom ASAN_SHADOW_SHIFT.
(ASAN_MIN_RED_ZONE_SIZE): Same.
* cfgexpand.c (expand_used_vars): Remove cast.
Change-Id: I770677b502d8a83c765d34a1c5217a947d501693
Mikhail Kashkarov [Fri, 28 Jun 2019 18:31:32 +0000 (21:31 +0300)]
Enable build-tunable asan shadow scale size
Use the following for the project config (3 is default):
%define asan_shadow_scale 3
Macros:
asan_shadow_scale 3
:Macros
+ backport https://reviews.llvm.org/D39471 for x86_64 shadow offset
+ backport https://reviews.llvm.org/D39472 for minimum redzone size
+ backport https://reviews.llvm.org/D39473 for internal alloc min alignment
+ backport https://reviews.llvm.org/D39474 to avoid assert failure for non-default shadow scale
Change-Id: I23b231f03d6ab47c6b4264f8c7837eb1197f4cc4
ebotcazou [Fri, 15 Feb 2019 21:40:24 +0000 (21:40 +0000)]
* asan.c (asan_emit_stack_protection): Use full-sized mask to align
the base address on 64-bit strict-alignment platforms.
(cherry picked from
724165bd22886d1fa486513c1b695302b307726e)
Change-Id: I52f5266e8336b7959b655226ae8619afc35b2692
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@268949
138bc75d-0d04-0410-961f-
82ee72b054a4
ebotcazou [Tue, 12 Feb 2019 12:23:08 +0000 (12:23 +0000)]
* asan.c (asan_expand_mark_ifn): Take into account the alignment of
the object to pick the size of stores on strict-alignment platforms.
* config/sparc/sparc.md (*movsi_insn): Minor tweak.
(*movdi_insn_sp32): Likewise.
(*movdi_insn_sp64): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@268792
138bc75d-0d04-0410-961f-
82ee72b054a4
(backported
3f00a89f9cdb0f2838ce0d853ef3bf6ff6f5a3ad without config/sparc fixes)
Change-Id: Id53952131b13fe5eba6b6de1f6d40531833d19fd
jakub [Wed, 5 Dec 2018 08:26:06 +0000 (08:26 +0000)]
PR sanitizer/88333
* cfgexpand.c (expand_stack_vars): If asan_vec is empty, start with
aligning frame offset to ASAN_RED_ZONE_SIZE bytes.
* c-c++-common/asan/pr88333.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@266817
138bc75d-0d04-0410-961f-
82ee72b054a4
(backported
db93a9789e3993801a493fcde11da7f08f212f6e)
Change-Id: Ie0c2c8f000777190e316c4051e2e781a5be823ef
jakub [Sun, 2 Dec 2018 12:39:26 +0000 (12:39 +0000)]
PR sanitizer/88291
* asan.c (asan_clear_shadow): Move assert that len is multiple of 4
to the start of the function.
(asan_emit_stack_protection): When emitting clearing sequence for
epilogue, align offset down to ASAN_RED_ZONE_SIZE granularity,
add last_size_aligned which is last_size padded to multiples of
ASAN_RED_ZONE_SIZE and emit asan_clear_shadow always on 4 byte
boundaries.
* c-c++-common/asan/pr88291.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@266721
138bc75d-0d04-0410-961f-
82ee72b054a4
(cherry picked
b0d945ba743397d845ab6bc3c3834241f28bb91f)
Change-Id: I8a86e9d61617253e8439ca2c5659a2436604d30b
jakub [Sat, 1 Dec 2018 07:31:56 +0000 (07:31 +0000)]
PR sanitizer/88289
* asan.c (asan_redzone_buffer::flush_redzone_payload): Fix up
an off-by-one for BYTES_BIG_ENDIAN.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@266708
138bc75d-0d04-0410-961f-
82ee72b054a4
(cherry picked
ef0c2db0d6a9d324bca1f4d2d4478034a63d54a7)
Change-Id: Ied661ed605dc4d060c78e5c6db31763fd35e77e1
marxin [Fri, 30 Nov 2018 14:25:15 +0000 (14:25 +0000)]
Make red zone size more flexible for stack variables (PR sanitizer/81715).
2018-11-30 Martin Liska <mliska@suse.cz>
PR sanitizer/81715
* asan.c (asan_shadow_cst): Remove, partially transform
into flush_redzone_payload.
(RZ_BUFFER_SIZE): New.
(struct asan_redzone_buffer): New.
(asan_redzone_buffer::emit_redzone_byte): Likewise.
(asan_redzone_buffer::flush_redzone_payload): Likewise.
(asan_redzone_buffer::flush_if_full): Likewise.
(asan_emit_stack_protection): Use asan_redzone_buffer class
that is responsible for proper aligned stores and flushing
of shadow memory payload.
* asan.h (ASAN_MIN_RED_ZONE_SIZE): New.
(asan_var_and_redzone_size): Likewise.
* cfgexpand.c (expand_stack_vars): Use smaller alignment
(ASAN_MIN_RED_ZONE_SIZE) in order to make shadow memory
for automatic variables more compact.
2018-11-30 Martin Liska <mliska@suse.cz>
PR sanitizer/81715
* c-c++-common/asan/asan-stack-small.c: New test.
(backported
57e4ba18100)
Change-Id: I58d73faf84206c26d8459b265e98c97cc242ea4a
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@266664
138bc75d-0d04-0410-961f-
82ee72b054a4
marxin [Tue, 9 Oct 2018 08:34:52 +0000 (08:34 +0000)]
ASAN: emit line information of stack variables.
2018-10-09 Martin Liska <mliska@suse.cz>
* asan.c (asan_emit_stack_protection): If a stack variable
is located in a same file as current function, then emit
line info into variable definition string.
2018-10-09 Martin Liska <mliska@suse.cz>
* c-c++-common/asan/pr64820.c: Add line number to scanned
pattern.
* c-c++-common/asan/use-after-return-1.c: Likewise.
* g++.dg/asan/function-argument-1.C (main): Likewise.
* g++.dg/asan/function-argument-2.C (main): Likewise.
* g++.dg/asan/function-argument-3.C (main): Likewise.
* g++.dg/asan/use-after-scope-1.C (main): Likewise.
* g++.dg/asan/use-after-scope-2.C (main): Likewise.
* g++.dg/asan/use-after-scope-types-1.C (main): Likewise.
* g++.dg/asan/use-after-scope-types-2.C (main): Likewise.
* g++.dg/asan/use-after-scope-types-3.C (main): Likewise.
* g++.dg/asan/use-after-scope-types-4.C (main): Likewise.
* g++.dg/asan/use-after-scope-types-5.C (main): Likewise.
* gcc.dg/asan/pr78541.c (main): Likewise.
* gcc.dg/asan/use-after-scope-1.c (main): Likewise.
* gcc.dg/asan/use-after-scope-10.c (main): Likewise.
* gcc.dg/asan/use-after-scope-2.c (main): Likewise.
* gcc.dg/asan/use-after-scope-3.c (main): Likewise.
* gcc.dg/asan/use-after-scope-5.c (main): Likewise.
* gcc.dg/asan/use-after-scope-9.c (main): Likewise.
(backported
1db5adee4f01d05f3f1b9c09c04b9b772ace6859 without
* g++.dg/asan/function-argument-1.C
* g++.dg/asan/function-argument-2.C
* g++.dg/asan/function-argument-3.C
* gcc.dg/asan/pr78541.c
* gcc.dg/asan/use-after-scope-10.c
test)
Change-Id: I03162f42275c2f3c0b92c6bfb397dbc91229a917
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@264951
138bc75d-0d04-0410-961f-
82ee72b054a4
marxin [Tue, 9 Jan 2018 11:47:26 +0000 (11:47 +0000)]
Add gcc_assert about stack alignment (PR sanitizer/82517).
2018-01-09 Martin Liska <mliska@suse.cz>
PR sanitizer/82517
* asan.c (shadow_mem_size): Add gcc_assert.
(cherry picked from
e56a070cadd948b81a5b769e17c8c1162829de27)
Change-Id: I0f97457dfc30b6afbde93ff53e2b5d923946a122
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@256378
138bc75d-0d04-0410-961f-
82ee72b054a4
marxin [Mon, 3 Jul 2017 09:26:31 +0000 (09:26 +0000)]
Make stack epilogue more efficient
2017-07-03 Martin Liska <mliska@suse.cz>
* asan.c (asan_emit_stack_protection): Unpoison just red zones
and shadow memory of auto variables which are subject of
use-after-scope sanitization.
(asan_expand_mark_ifn): Add do set only when is_poison.
(cherry picked
355c17620ce)
Change-Id: Ib36a512acb3e0dcb9e7dbfbd9a55661694e7e749
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@249900
138bc75d-0d04-0410-961f-
82ee72b054a4
Mikhail Kashkarov [Tue, 9 Jul 2019 19:40:49 +0000 (22:40 +0300)]
Add binary annotations support (based on annobin plugin)
Change-Id: Ib3571622cd090992ce42305b7c5985fd322322d4
Dongkyun Son [Wed, 5 Jun 2019 06:56:45 +0000 (15:56 +0900)]
* gcc.dg/pr83623.c: Add additional options on hppa*-&-hpux* and arm*-*-*.
(includes
5839d47d0d65a35fa4791220ef57f50912ca40d5)
Change-Id: Icd2eab553e9fd30d4317301a93b2d5e2c56a27e4
Signed-off-by: Dongkyun Son <dongkyun.s@samsung.com>
jakub [Sun, 31 Dec 2017 23:50:32 +0000 (23:50 +0000)]
PR middle-end/83623
* expmed.c (expand_shift_1): For 2-byte rotates by BITS_PER_UNIT,
check for bswap in mode rather than HImode and use that in expand_unop
too.
* gcc.dg/pr83623.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@256051
138bc75d-0d04-0410-961f-
82ee72b054a4
(cherry picked from commit
2876a3f3bbe119fb2fd0c1f414fa5048367b2ff8)
Change-Id: I9adfbbc9525351281742494c6872bca70da2e373
Dongkyun Son [Wed, 8 Nov 2017 01:49:50 +0000 (10:49 +0900)]
packaging: add release information to pkgversion string.
gcc (Tizen/Linaro GCC %{version} %{gcc_release} %{release}) BASEVER DATESTAMP
%{release} can provide more information(revision, build count).
Change-Id: I73e4da88ebcee0269c6875b6ef40d5690dc4de67
Signed-off-by: Dongkyun Son <dongkyun.s@samsung.com>
marxin [Thu, 27 Dec 2018 09:47:20 +0000 (09:47 +0000)]
Cherry pick libsanitizer patch (https://reviews.llvm.org/D54856).
2018-12-27 Martin Liska <mliska@suse.cz>
PR sanitizer/86229
* asan/asan_errors.cc (ErrorAllocTypeMismatch::Print): Cherry
pick rL350085.
* asan/asan_errors.h (struct ErrorAllocTypeMismatch): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@267432
138bc75d-0d04-0410-961f-
82ee72b054a4
(cherry picked from commit
27e7ab5c4e8aa2c89a5e9b91d1b4eb60a435b14f)
Change-Id: I016920774a6215f7a638cab88f268baeff049601
Mikhail Kashkarov [Thu, 27 Dec 2018 09:42:37 +0000 (12:42 +0300)]
[asan] Add __libc_siglongjmp/__libc_longjmp interceptors
Change-Id: Ic247cb33f17743fa597b3a74baf7cf31c075165d
Andrey Drobyshev [Tue, 18 Dec 2018 12:44:59 +0000 (15:44 +0300)]
libsanitizer: fix SVACE warnings.
* lsan_thread.cc: return value of a function '__lsan::CurrentThreadContext'
is dereferenced without checking.
* sanitizer_libc.cc: casting a signed value which has type 'char' to a
bigger unsigned integer type 'unsigned int' while initializing a
variable.
* sanitizer_libignore.cc: constructor may not initialize class members of
'__sanitizer::LibIgnore'.
* sanitizer_printf.cc: 'minimal_num_length' with type 'u8', is promoted to
type 'int' 32b in 'minimal_num_length - pos', then sign-extended to type
'unsigned long' 64b.
* sanitizer_symbolizer_posix_libcdep.cc: after having been compared to NULL
value, pointer (...)->path is passed as 1st parameter in call to function
'__sanitizer::LLVMSymbolizer::LLVMSymbolizer', where it is dereferenced.
Change-Id: I9ebcd68362d68be8d738f4b9d5eaad3fae796f6a
Signed-off-by: Andrey Drobyshev <a.drobyshev@samsung.com>
Andrey Drobyshev [Fri, 30 Nov 2018 15:30:55 +0000 (18:30 +0300)]
libsanitizer: add filtering of sleep intervals for BackgroundThread.
Previously sleep interval length of BackgroundThread was determined by a
hardcoded value, thus limiting time resolution of dependent tools, such
as Heap Profiler. This commit implements simple algorithm which remembers
last several sleeps (namely 2), their durations and whether or not they
were followed by some interesting events (i.e. delivery of some memory
usage statistics). Then it tries to predict an optimal sleep length for
the next time, changing it dynamically.
Change-Id: I6fc3865cbf4b9e8c5dd6ad4222eac2085a612b51
Signed-off-by: Andrey Drobyshev <a.drobyshev@samsung.com>
Dmitriy Evgenevich Gonzha [Wed, 14 Mar 2018 10:47:05 +0000 (13:47 +0300)]
libsanitizer: re-implement heap profiler.
In the previos heap profiler implementation HeapProfile instance was
created every time BackgroundThread wanted to collect statistical data.
This commit simply applies the singleton pattern: now there's only one
HeapProfile object which can both decide wether it's time to collect the
statistics and print profiling data.
Signed-off-by: Andrey Drobyshev <a.drobyshev@samsung.com>
Change-Id: I8dfa245d826c52749564346a2cd50788c5d91124
rearnsha [Tue, 6 Nov 2018 17:18:37 +0000 (17:18 +0000)]
aarch64 - Set the mode for the unspec in speculation_tracker insn.
The speculation tracker insn in my recent patch set for CVE-2017-5753
was missing a mode on the UNSPEC. Although this didn't break the
build, it did cause an unnecessary warning from the MD parsing
mechanism that I missed at the time. It's a trivial fix, as follows:
* config/aarch64/aarch64.md (speculation_tracker): Set the mode for
the UNSPEC.
(backported
1ce555a208bf8e3422eadd9c1e3eb0b1b120a81b)
Change-Id: I525ae85eeafc2e9f42b365957abdb7b494a286c2
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@265849
138bc75d-0d04-0410-961f-
82ee72b054a4
rearnsha [Fri, 2 Nov 2018 13:36:31 +0000 (13:36 +0000)]
Although there's no fundamental reason why shrink wrapping and
speculation tracking are incompatible, a phase-ordering requirement
(we need to do speculation tracking before the final basic block
clean-up) means that the shrink wrapping pass can undo some of the
changes the speculation tracking pass makes. The result is that the
tracking, while still safe is less comprehensive than we really want.
So to keep things simple, and because the tracking code is quite
expensive anyway, it seems best to just disable that pass when we are
tracking speculative execution.
* config/aarch64/aarch64.c (aarch64_override_options): Disable
shrink-wrapping when -mtrack-speculation.
(backported
3024ac6836fa5a0f8ab539a0823bfb609aef0e93)
Change-Id: I894aa3562b8ddfc951e2eb33c15bd9d79c423c0f
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@265747
138bc75d-0d04-0410-961f-
82ee72b054a4
rearnsha [Thu, 23 Aug 2018 09:47:34 +0000 (09:47 +0000)]
PR target/86951 arm - Handle speculation barriers on pre-armv7 CPUs
The AArch32 instruction sets prior to Armv7 do not define the ISB and
DSB instructions that are needed to form a speculation barrier. While
I do not know of any instances of cores based on those instruction
sets being vulnerable to speculative side channel attacks it is
possible to run code built for those ISAs on more recent hardware
where they would become vulnerable.
This patch works around this by using a library call added to libgcc.
That code can then take any platform-specific actions necessary to
ensure safety.
For the moment I've only handled two cases: the library code being
built for armv7 or later anyway and running on Linux.
On Linux we can handle this by calling the kernel function that will
flush a small amount of cache. Such a sequence ends with a ISB+DSB
sequence if running on an Armv7 or later CPU.
gcc:
PR target/86951
* config/arm/arm-protos.h (arm_emit_speculation_barrier): New
prototype.
* config/arm/arm.c (speculation_barrier_libfunc): New static
variable.
(arm_init_libfuncs): Initialize it.
(arm_emit_speculation_barrier): New function.
* config/arm/arm.md (speculation_barrier): Call
arm_emit_speculation_barrier for architectures that do not have
DSB or ISB.
(speculation_barrier_insn): Only match on Armv7 or later.
libgcc:
PR target/86951
* config/arm/lib1funcs.asm (speculation_barrier): New function.
* config/arm/t-arm (LIB1ASMFUNCS): Add it to list of functions
to build.
(backported
a7852b351bded1c6885e36e3ba70c298afcd1699)
Change-Id: I4b77551dad3effbe49b06ff8bdd20daae69869e3
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@263806
138bc75d-0d04-0410-961f-
82ee72b054a4
rearnsha [Wed, 1 Aug 2018 08:16:38 +0000 (08:16 +0000)]
x86 - add speculation_barrier pattern
This patch adds a speculation barrier for x86, based on my
understanding of the required mitigation for that CPU, which is to use
an lfence instruction.
This patch needs some review by an x86 expert and if adjustments are
needed, I'd appreciate it if they could be picked up by the port
maintainer. This is supposed to serve as an example of how to deploy
the new __builtin_speculation_safe_value() intrinsic on this
architecture.
* config/i386/i386.md (unspecv): Add UNSPECV_SPECULATION_BARRIER.
(speculation_barrier): New insn.
(backported
5812770a029b1a49b72cabf08b2f202d2d00dc69)
Change-Id: I94d1aacb04c9288a0fbeb38109aeb80a59ca47e6
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@263196
138bc75d-0d04-0410-961f-
82ee72b054a4
ian [Tue, 31 Jul 2018 20:51:06 +0000 (20:51 +0000)]
* targhooks.c (default_have_speculation_safe_value): Add
ATTRIBUTE_UNUSED.
(backported
30929ff6997501127e0d09e4917eef3f42d33899)
Change-Id: I59da0b5a1f07516058eacb291a436e80fc2d52d5
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@263180
138bc75d-0d04-0410-961f-
82ee72b054a4
rearnsha [Tue, 31 Jul 2018 17:36:36 +0000 (17:36 +0000)]
targhooks - provide an alternative hook for targets that never execute speculatively
This hook adds an alternative implementation for the target hook
TARGET_HAVE_SPECULATION_SAFE_VALUE; it can be used by targets that have no
CPU implementations that execute code speculatively. All that is needed for
such targets now is to add:
#undef TARGET_HAVE_SPECULATION_SAFE_VALUE
#define TARGET_HAVE_SPECULATION_SAFE_VALUE speculation_safe_value_not_needed.
to where you have your other target hooks and you're done.
gcc:
* targhooks.h (speculation_safe_value_not_needed): New prototype.
* targhooks.c (speculation_safe_value_not_needed): New function.
* target.def (have_speculation_safe_value): Update documentation.
* doc/tm.texi: Regenerated.
(backported
3e3448a9ae57194db317a72e68a3266a4cbdb39d)
Change-Id: I4532e9bc21029d5e452868dbe95c25a41d1f4a5c
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@263175
138bc75d-0d04-0410-961f-
82ee72b054a4
rearnsha [Tue, 31 Jul 2018 17:36:26 +0000 (17:36 +0000)]
AArch64 - use CSDB based sequences if speculation tracking is enabled
In this final patch, now that we can track speculation through conditional
branches, we can use this information to use a less expensive CSDB based
speculation barrier.
* config/aarch64/iterators.md (ALLI_TI): New iterator.
* config/aarch64/aarch64.md (despeculate_copy<ALLI_TI:mode>): New
expand.
(despeculate_copy<ALLI:mode>_insn): New insn.
(despeculate_copyti_insn): New insn.
(despeculate_simple<ALLI:mode>): New insn
(despeculate_simpleti): New insn.
* config/aarch64/aarch64.c (aarch64_speculation_safe_value): New
function.
(TARGET_SPECULATION_SAFE_VALUE): Redefine to
aarch64_speculation_safe_value.
(aarch64_print_operand): Handle const0_rtx in modifier 'H'.
(backported
ce52014acef8b301ede901792f9d25035cb727bf)
Change-Id: I0ea1ea8e425820a71d252d239ffb53a82162302c
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@263174
138bc75d-0d04-0410-961f-
82ee72b054a4
rearnsha [Tue, 31 Jul 2018 17:36:18 +0000 (17:36 +0000)]
AArch64 - new pass to add conditional-branch speculation tracking
This patch is the main part of the speculation tracking code. It adds
a new target-specific pass that is run just before the final branch
reorg pass (so that it can clean up any new edge insertions we make).
The pass is only run with -mtrack-speculation is passed on the command
line.
One thing that did come to light as part of this was that the stack pointer
register was not being permitted in comparision instructions. We rely on
that for moving the tracking state between SP and the scratch register at
function call boundaries.
* config/aarch64/aarch64-speculation.cc: New file.
* config/aarch64/aarch64-passes.def (pass_track_speculation): Add before
pass_reorder_blocks.
* config/aarch64/aarch64-protos.h (make_pass_track_speculation): Add
prototype.
* config/aarch64/aarch64.c (aarch64_conditional_register_usage): Fix
X14 and X15 when tracking speculation.
* config/aarch64/aarch64.md (register name constants): Add
SPECULATION_TRACKER_REGNUM and SPECULATION_SCRATCH_REGNUM.
(unspec): Add UNSPEC_SPECULATION_TRACKER.
(speculation_barrier): New insn attribute.
(cmp<mode>): Allow SP in comparisons.
(speculation_tracker): New insn.
(speculation_barrier): Add speculation_barrier attribute.
* config/aarch64/t-aarch64: Add make rule for aarch64-speculation.o.
* config.gcc (aarch64*-*-*): Add aarch64-speculation.o to extra_objs.
* doc/invoke.texi (AArch64 Options): Document -mtrack-speculation.
(backported
b19562a81626f3e6adc5a5d4a185b36548539a4f)
Change-Id: Icece830281b0131f2a151bb43aa1aa3f94463836
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@263173
138bc75d-0d04-0410-961f-
82ee72b054a4
rearnsha [Tue, 31 Jul 2018 17:36:09 +0000 (17:36 +0000)]
AArch64 - disable CB[N]Z TB[N]Z when tracking speculation
The CB[N]Z and TB[N]Z instructions do not expose the comparison through
the condition code flags. This makes it impossible to track speculative
execution through such a branch. We can handle this relatively easily
by simply disabling the patterns in this case.
A side effect of this is that the split patterns for the atomic operations
need to also avoid generating these instructions. They mostly have simple
fall-backs for this already.
* config/aarch64/aarch64.md (cb<optab><mode>1): Disable when
aarch64_track_speculation is true.
(tb<optab><mode>1): Likewise.
* config/aarch64/aarch64.c (aarch64_split_compare_regs): Do not
generate CB[N]Z when tracking speculation.
(aarch64_split_compare_and_swap): Likewise.
(aarch64_split_atomic_op): Likewise.
(backported
eaf891585b16ef84046ae73a01bb1c7189c682e9)
Change-Id: I0d0a090ef7bcf074b9e4d6ee115e71faa157962f
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@263172
138bc75d-0d04-0410-961f-
82ee72b054a4
rearnsha [Tue, 31 Jul 2018 17:36:00 +0000 (17:36 +0000)]
AArch64 - Add new option -mtrack-speculation
This patch doesn't do anything useful, it simply adds a new command-line
option -mtrack-speculation to AArch64. Subsequent patches build on this.
* config/aarch64/aarch64.opt (mtrack-speculation): New target option.
(backported
97eb2b8649e777da576598448d9d68afcfe69b54)
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@263171
138bc75d-0d04-0410-961f-
82ee72b054a4
Change-Id: I70cf2047662fa73e3d7090d62392210bac872591
rearnsha [Tue, 31 Jul 2018 17:35:50 +0000 (17:35 +0000)]
AArch64 - add speculation barrier
Similar to Arm, this adds an unconditional speculation barrier for AArch64.
* config/aarch64.md (unspecv): Add UNSPECV_SPECULAION_BARRIER.
(speculation_barrier): New insn.
(backported
f9d2906f0b6803c42b2200da5e32e331930fc306)
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@263170
138bc75d-0d04-0410-961f-
82ee72b054a4
Change-Id: Ic9a1826c24f8597033716cec3d02de12fdb57dba
rearnsha [Tue, 31 Jul 2018 17:35:41 +0000 (17:35 +0000)]
Arm - add speculation_barrier pattern
This patch defines a speculation barrier for AArch32.
* config/arm/unspecs.md (unspecv): Add VUNSPEC_SPECULATION_BARRIER.
* config/arm/arm.md (speculation_barrier): New expand.
(speculation_barrier_insn): New pattern.
(backported
be626997e0edc646c17e9e1eadabf97152e82eeb)
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@263169
138bc75d-0d04-0410-961f-
82ee72b054a4
Change-Id: I5f587e22dd1a92440a6a208e2baca189427557da
rearnsha [Tue, 31 Jul 2018 17:35:32 +0000 (17:35 +0000)]
Add __builtin_speculation_safe_value
This patch defines a new intrinsic function
__builtin_speculation_safe_value. A generic default implementation is
defined which will attempt to use the backend pattern
"speculation_safe_barrier". If this pattern is not defined, or if it
is not available, then the compiler will emit a warning, but
compilation will continue.
Note that the test spec-barrier-1.c will currently fail on all
targets. This is deliberate, the failure will go away when
appropriate action is taken for each target backend.
gcc:
* builtin-types.def (BT_FN_PTR_PTR_VAR): New function type.
(BT_FN_I1_I1_VAR, BT_FN_I2_I2_VAR, BT_FN_I4_I4_VAR): Likewise.
(BT_FN_I8_I8_VAR, BT_FN_I16_I16_VAR): Likewise.
* builtin-attrs.def (ATTR_NOVOPS_NOTHROW_LEAF_LIST): New attribute
list.
* builtins.def (BUILT_IN_SPECULATION_SAFE_VALUE_N): New builtin.
(BUILT_IN_SPECULATION_SAFE_VALUE_PTR): New internal builtin.
(BUILT_IN_SPECULATION_SAFE_VALUE_1): Likewise.
(BUILT_IN_SPECULATION_SAFE_VALUE_2): Likewise.
(BUILT_IN_SPECULATION_SAFE_VALUE_4): Likewise.
(BUILT_IN_SPECULATION_SAFE_VALUE_8): Likewise.
(BUILT_IN_SPECULATION_SAFE_VALUE_16): Likewise.
* builtins.c (expand_speculation_safe_value): New function.
(expand_builtin): Call it.
* doc/cpp.texi: Document predefine __HAVE_SPECULATION_SAFE_VALUE.
* doc/extend.texi: Document __builtin_speculation_safe_value.
* doc/md.texi: Document "speculation_barrier" pattern.
* doc/tm.texi.in: Pull in TARGET_SPECULATION_SAFE_VALUE and
TARGET_HAVE_SPECULATION_SAFE_VALUE.
* doc/tm.texi: Regenerated.
* target.def (have_speculation_safe_value, speculation_safe_value): New
hooks.
* targhooks.c (default_have_speculation_safe_value): New function.
(default_speculation_safe_value): New function.
* targhooks.h (default_have_speculation_safe_value): Add prototype.
(default_speculation_safe_value): Add prototype.
c-family:
* c-common.c (speculation_safe_resolve_call): New function.
(speculation_safe_resolve_params): New function.
(speculation_safe_resolve_return): New function.
(resolve_overloaded_builtin): Handle __builtin_speculation_safe_value.
* c-cppbuiltin.c (c_cpp_builtins): Add pre-define for
__HAVE_SPECULATION_SAFE_VALUE.
testsuite:
* c-c++-common/spec-barrier-1.c: New test.
* c-c++-common/spec-barrier-2.c: New test.
* gcc.dg/spec-barrier-3.c: New test.
(backported
123081efd41261af8830d6c796a9b12435806bac)
Change-Id: I1d0e777c8e098f5a1d30aa5fa3090c8ce6b3dbee
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@263168
138bc75d-0d04-0410-961f-
82ee72b054a4
ktkachov [Fri, 2 Jun 2017 14:41:52 +0000 (14:41 +0000)]
[AArch64] Emit tighter strong atomic compare-exchange loop when comparing against zero
* config/aarch64/aarch64.c (aarch64_split_compare_and_swap):
Emit CBNZ inside loop when doing a strong exchange and comparing
against zero. Generate the CC flags after the loop.
* gcc.target/aarch64/atomic_cmp_exchange_zero_strong_1.c: New test.
(backported
c5dcf8e544c5e98f1160ec390111b28d11d73b68)
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@248832
138bc75d-0d04-0410-961f-
82ee72b054a4
Change-Id: I5204c56a8d3c11b0fde6697007d601cbafdb3ccf
ktkachov [Tue, 14 Feb 2017 10:33:50 +0000 (10:33 +0000)]
[ARM] PR rtl-optimization/68664 Implement TARGET_SCHED_CAN_SPECULATE_INSN hook
PR rtl-optimization/68664
* config/arm/arm.c (arm_sched_can_speculate_insn):
New function. Declare prototype.
(TARGET_SCHED_CAN_SPECULATE_INSN): Define.
(backported
a705f613f2fe0ff13b18fdf92af1dc5574c963d3)
Change-Id: I1eb8f369ebf3d85662df78e9da62cf0be35d8b5a
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@245425
138bc75d-0d04-0410-961f-
82ee72b054a4
ktkachov [Mon, 17 Oct 2016 16:37:38 +0000 (16:37 +0000)]
[AArch64] Use new target pass registration framework for FMA steering pass
* config/aarch64/aarch64.c: Delete inclusion of
cortex-a57-fma-steering.h.
(aarch64_override_options): Delete call
to aarch64_register_fma_steering.
* config/aarch64/aarch64-protos.h (make_pass_fma_steering): Declare.
* config/aarch64/cortex-a57-fma-steering.h: Delete.
* config/aarch64/aarch64-passes.def: New file.
* config/aarch64/cortex-a57-fma-steering.c
(aarch64_register_fma_steering): Delete definition.
(make_pass_fma_steering): Remove static qualifier.
* config/aarch64/t-aarch64 (PASSES_EXTRA): New directive.
(cortex-a57-fma-steering.o): Remove dependency on
cortex-a57-fma-steering.h.
(backported
e8ebfb45f2e320c6a1e810c9d7ca1c40e2b26e6b)
Change-Id: I608f6d880296473c76c203e387c96791be9e50f2
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@241248
138bc75d-0d04-0410-961f-
82ee72b054a4
Denis Khalikov [Fri, 14 Sep 2018 10:43:20 +0000 (13:43 +0300)]
[ESan] Fix typo for the testsuite.
Change-Id: I4fc5c6f0978b4be6aa286c42e06b34c687574a6c
Vyacheslav Cherkashin [Wed, 12 Dec 2018 15:11:52 +0000 (18:11 +0300)]
[LSan] Export a LSan API for use it third party
This API is needed to use LSan in conjunction with SWAP
Change-Id: Iff1ceaca9242a889b0b68f672302f8a0b3808411
Signed-off-by: Vyacheslav Cherkashin <v.cherkashin@samsung.com>
Vyacheslav Cherkashin [Wed, 31 Oct 2018 14:52:22 +0000 (17:52 +0300)]
[LSan] Add dynamic loading support for LSan library
The LSan library has very big static TLS section
Problem:
- LSan library could not be loaded dynamically because it had a very
big static TLS section.
AllocatorCache: ~15KB for 32bit
~53KB for 64bit
Solution:
- Store in the TLS section only a pointer to the AllocatorCache and
dynamically allocate memory for it.
Change-Id: I6e90e6682e277c90825938f5732867b6564d62b4
Signed-off-by: Vyacheslav Cherkashin <v.cherkashin@samsung.com>
Francis Ricci [Thu, 25 Oct 2018 11:26:37 +0000 (14:26 +0300)]
[LSan] Factor lsan allocator cache accesses into a function
Summary:
This patch is the first step towards allows us to move away from using
__thread for the allocator cache on darwin,
which is requiring for building lsan for darwin on ios version 7
and on iossim i386.
This will be followed by patches to move the function into OS-specific files.
Reviewers: kubamracek, kcc
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D29994
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@298537
91177308-0d34-0410-b5e6-
96231b3b80d8
Backport:
http://llvm.org/git/compiler-rt
65ede46c
Change-Id: Icd528cc4e96c63489c7d25cbb3af100a32d4a26f
Signed-off-by: Vyacheslav Cherkashin <v.cherkashin@samsung.com>
Alex Shlyapnikov [Mon, 15 May 2017 23:11:01 +0000 (23:11 +0000)]
[LSan] Report the missing linker only when the linker is actually missing.
Reviewers: eugenis
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D33218
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@303129
91177308-0d34-0410-b5e6-
96231b3b80d8
Backport:
http://llvm.org/git/compiler-rt 4ba4036
Change-Id: I1c01e8679206af77fcd971a8fed5b8dde0e42b15
Mikhail Kashkarov [Fri, 26 Oct 2018 19:06:18 +0000 (22:06 +0300)]
Move asan/pr80659.c to gcc/testsuite folder
Fix testcase placement after
e2cd7f1b
Change-Id: Idd0d622ca66573c5a8005d139fbbff033bc8abe3
Dongkyun Son [Fri, 19 Oct 2018 01:40:34 +0000 (10:40 +0900)]
packaging: set %arm(armv7l and armv7hl) to esan_arch
Change-Id: I5afa3a89fe3dbffc71a4883f02ef6ac95fe8eeb4
Signed-off-by: Dongkyun Son <dongkyun.s@samsung.com>
Denis Khalikov [Wed, 22 Aug 2018 10:48:13 +0000 (13:48 +0300)]
packaging: Enable gcc build with mthumb-fp
Change-Id: Ib433b7163a1541134ed7bbf4b446a70fb5a2f34a
Slava Barinov [Mon, 22 Oct 2018 08:16:29 +0000 (11:16 +0300)]
Switch off -Wswitch-unreachable by default (move to Wextra)
Change-Id: I17f651eadbea96d8a48a72d0be7b345955383b2f
Signed-off-by: Slava Barinov <v.barinov@samsung.com>
Denis Khalikov [Fri, 5 Oct 2018 08:57:28 +0000 (11:57 +0300)]
[Sanitizers] Disable use-after-scope by default.
So, until the patch "Speed up use-after-scope (v2): rewrite into SSA"
is not implemented, we set use-after-scope disabled by default.
Change-Id: Ia84ce0652ce68bc7c269d72a2a4613cb0806bcf4
marxin [Mon, 19 Jun 2017 13:27:48 +0000 (13:27 +0000)]
Initialize live_switch_vars for SWITCH_BODY == STATEMENT_LIST (PR sanitizer/80879).
2017-06-19 Martin Liska <mliska@suse.cz>
PR sanitizer/80879
* gimplify.c (gimplify_switch_expr):
Initialize live_switch_vars for SWITCH_BODY == STATEMENT_LIST.
2017-06-19 Martin Liska <mliska@suse.cz>
PR sanitizer/80879
* gcc.dg/asan/use-after-scope-switch-4.c: New test.
upstream hash:
dfbe80905a8674b4b1be4bf9181e824b37ffa33a
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@249368
138bc75d-0d04-0410-961f-
82ee72b054a4
Change-Id: I64057623544d67381f52230ba75a9fa804eb6eb2
marxin [Tue, 13 Dec 2016 09:14:47 +0000 (09:14 +0000)]
Add pretty printer for ASAN_MARK and add a helper fn
* asan.c (asan_mark_poison_p): Remove.
(asan_mark_p): New function.
(transform_statements): Use the function.
(asan_expand_mark_ifn): Do not use masked enum.
* asan.h (enum asan_mark_flags): Declare it via a macro.
* gimple-pretty-print.c (dump_gimple_call_args): Dump first
argument of ASAN_MARK.
* gimplify.c (build_asan_poison_call_expr): Use new enum values.
(asan_poison_variable): Likewise.
* gcc.dg/asan/use-after-scope-goto-1.c: Update first argument of
scanned pattern ASAN_MARK.
* gcc.dg/asan/use-after-scope-goto-2.c: Likewise.
* gcc.dg/asan/use-after-scope-switch-1.c: Likewise.
* gcc.dg/asan/use-after-scope-switch-2.c: Likewise.
* gcc.dg/asan/use-after-scope-switch-3.c: Likewise.
Change-Id: Ife3e6037a03ec2b25a15d45bb301f43b750e6649
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@
243597138bc75d-0d04-0410-961f-
82ee72b054a4
mpolacek [Wed, 17 May 2017 09:59:20 +0000 (09:59 +0000)]
PR sanitizer/80659
* c-decl.c (build_compound_literal): Set DECL_ARTIFICIAL and
DECL_IGNORED_P even for non-static compound literals.
* gcc.dg/asan/pr80659.c: New test.
Change-Id: I7565aba65e49836947e0faf2eb5ea668b46a0d87
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@
248143138bc75d-0d04-0410-961f-
82ee72b054a4
marxin [Wed, 16 Nov 2016 11:56:58 +0000 (11:56 +0000)]
Fix PR sanitizer/78270 (part 2)
PR sanitizer/78270
* gimplify.c (gimplify_switch_expr): Always save previous
gimplify_ctxp->live_switch_vars.
PR sanitizer/78270
* gcc.dg/asan/pr78270.c: Update comment style.
* gcc.dg/asan/pr78270-2.c: New test.
upstream hash:
904e262bdb88c2cf1eefeb4997c8d4ed2a888d55
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@242485
138bc75d-0d04-0410-961f-
82ee72b054a4
Change-Id: I760170bff746390269035dd2c10afff960d06445
marxin [Thu, 10 Nov 2016 11:21:03 +0000 (11:21 +0000)]
Create live_switch_vars conditionally (PR sanitizer/78270)
PR sanitizer/78270
* gcc.dg/asan/pr78270.c: New test.
PR sanitizer/78270
* gimplify.c (gimplify_switch_expr): Create live_switch_vars
only when SWITCH_BODY is a BIND_EXPR.
upstream hash:
65dc25166f86f75a85141e56344f482d41f3b024
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@242036
138bc75d-0d04-0410-961f-
82ee72b054a4
Change-Id: I8bc4e10c86602e72321af171755f7c54e6bd164c
marxin [Tue, 8 Nov 2016 12:28:33 +0000 (12:28 +0000)]
use-after-scope fallout
PR testsuite/78242
* g++.dg/asan/use-after-scope-4.C: New test.
* g++.dg/asan/use-after-scope-types-4.C: Update scanned pattern.
* gcc.dg/asan/use-after-scope-8.c: Remove.
PR testsuite/78242
* dbgcnt.def: Add new debug counter asan_use_after_scope.
* gimplify.c (gimplify_decl_expr): Do not sanitize vars
with a value expr. Do not add artificial variables to
live_switch_vars. Use the debug counter.
(gimplify_target_expr): Use the debug counter.
* internal-fn.def: Remove ECF_TM_PURE from ASAN_MARK builtin.
* sanitizer.def: Set ATTR_NOTHROW_LEAF_LIST to
BUILT_IN_ASAN_CLOBBER_N and BUILT_IN_ASAN_UNCLOBBER_N.
upstream hash:
d71fcb4d6c78c38912a87df7e0aa09407b691f79
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@241961
138bc75d-0d04-0410-961f-
82ee72b054a4
Change-Id: I9e5609ee7f9015cfd0951ad8aedd1437d90dca9d
marxin [Mon, 7 Nov 2016 10:25:18 +0000 (10:25 +0000)]
Introduce tests for -fsanitize-address-use-after-scope
* c-c++-common/asan/force-inline-opt0-1.c: Disable
-f-sanitize-address-use-after-scope.
* c-c++-common/asan/inc.c: Change number of expected ASAN_CHECK
internal fn calls.
* g++.dg/asan/use-after-scope-1.C: New test.
* g++.dg/asan/use-after-scope-2.C: Likewise.
* g++.dg/asan/use-after-scope-3.C: Likewise.
* g++.dg/asan/use-after-scope-types-1.C: Likewise.
* g++.dg/asan/use-after-scope-types-2.C: Likewise.
* g++.dg/asan/use-after-scope-types-3.C: Likewise.
* g++.dg/asan/use-after-scope-types-4.C: Likewise.
* g++.dg/asan/use-after-scope-types-5.C: Likewise.
* g++.dg/asan/use-after-scope-types.h: Likewise.
* gcc.dg/asan/use-after-scope-1.c: Likewise.
* gcc.dg/asan/use-after-scope-2.c: Likewise.
* gcc.dg/asan/use-after-scope-3.c: Likewise.
* gcc.dg/asan/use-after-scope-4.c: Likewise.
* gcc.dg/asan/use-after-scope-5.c: Likewise.
* gcc.dg/asan/use-after-scope-6.c: Likewise.
* gcc.dg/asan/use-after-scope-7.c: Likewise.
* gcc.dg/asan/use-after-scope-8.c: Likewise.
* gcc.dg/asan/use-after-scope-9.c: Likewise.
* gcc.dg/asan/use-after-scope-switch-1.c: Likewise.
* gcc.dg/asan/use-after-scope-switch-2.c: Likewise.
* gcc.dg/asan/use-after-scope-switch-3.c: Likewise.
* gcc.dg/asan/use-after-scope-goto-1.c: Likewise.
* gcc.dg/asan/use-after-scope-goto-2.c: Likewise.
upstream hash:
ea86011c3ffb79f3a8ce8f1ffe0f89abfb8d7ace
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@241897
138bc75d-0d04-0410-961f-
82ee72b054a4
Change-Id: Ibab662fa2a192a856c195377cb08796bcad7112f
marxin [Mon, 7 Nov 2016 10:23:38 +0000 (10:23 +0000)]
Introduce -fsanitize-address-use-after-scope
* c-warn.c (warn_for_unused_label): Save all labels used
in goto or in &label.
* asan.c (enum asan_check_flags): Move the enum to header file.
(asan_init_shadow_ptr_types): Make type creation more generic.
(shadow_mem_size): New function.
(asan_emit_stack_protection): Use newly added ASAN_SHADOW_GRANULARITY.
Rewritten stack unpoisoning code.
(build_shadow_mem_access): Add new argument return_address.
(instrument_derefs): Instrument local variables if use after scope
sanitization is enabled.
(asan_store_shadow_bytes): New function.
(asan_expand_mark_ifn): Likewise.
(asan_sanitize_stack_p): Moved from asan_sanitize_stack_p.
* asan.h (enum asan_mark_flags): Moved here from asan.c
(asan_protect_stack_decl): Protect all declaration that need
to live in memory.
(asan_sanitize_use_after_scope): New function.
(asan_no_sanitize_address_p): Likewise.
* cfgexpand.c (partition_stack_vars): Consider
asan_sanitize_use_after_scope in condition.
(expand_stack_vars): Likewise.
* common.opt (-fsanitize-address-use-after-scope): New option.
* doc/invoke.texi (use-after-scope-direct-emission-threshold):
Explain the parameter.
* flag-types.h (enum sanitize_code): Define SANITIZE_USE_AFTER_SCOPE.
* gimplify.c (build_asan_poison_call_expr): New function.
(asan_poison_variable): Likewise.
(gimplify_bind_expr): Generate poisoning/unpoisoning for local
variables that have address taken.
(gimplify_decl_expr): Likewise.
(gimplify_target_expr): Likewise for C++ temporaries.
(sort_by_decl_uid): New function.
(gimplify_expr): Unpoison all variables for a label we can jump
from outside of a scope.
(gimplify_switch_expr): Unpoison variables defined in the switch
context.
(gimplify_function_tree): Clear asan_poisoned_variables.
(asan_poison_variables): New function.
(warn_switch_unreachable_r): Handle IFN_ASAN_MARK.
* internal-fn.c (expand_ASAN_MARK): New function.
* internal-fn.def (ASAN_MARK): Declare.
* opts.c (finish_options): Handle -fstack-reuse if
-fsanitize-address-use-after-scope is enabled.
(common_handle_option): Enable address sanitization if
-fsanitize-address-use-after-scope is enabled.
* params.def (PARAM_USE_AFTER_SCOPE_DIRECT_EMISSION_THRESHOLD):
New parameter.
* params.h: Likewise.
* sancov.c (pass_sanopt::execute): Handle IFN_ASAN_MARK.
* sanitizer.def: Define __asan_poison_stack_memory and
__asan_unpoison_stack_memory functions.
* asan.c (asan_mark_poison_p): New function.
(transform_statements): Handle asan_mark_poison_p calls.
* gimple.c (nonfreeing_call_p): Handle IFN_ASAN_MARK.
With fixes for tizen linaro-gcc by Dmitriy Gonzha
Change-Id: Ia39cbdfadac97f339dceb973872e15ee0d67ea19
upstream hash:
629b6abce95170a3ee8417479e82615fa1e4b67e
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@241896
138bc75d-0d04-0410-961f-
82ee72b054a4
mpolacek [Mon, 26 Sep 2016 09:42:50 +0000 (09:42 +0000)]
Implement -Wimplicit-fallthrough.
With fixes for tizen linaro-gcc by Dmitriy Gonzha.
Not fully implement implicit-fallthrough. Some tests are fail.
Because of possible errors turned off from -Wextra and renamed to
"-Wimplicit-fallthrough-disabled".
Required for -fsanitize-address-use-after-scope
Change-Id: I088b82dce350c017ecb3933c1cba3b2b01dde3f7
upstream hash:
3c77f69c50d3377491c917808fbfc4b9787acd6f
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@240485
138bc75d-0d04-0410-961f-
82ee72b054a4
mpolacek [Fri, 12 Aug 2016 10:30:47 +0000 (10:30 +0000)]
PR c/7652
gcc/
* alias.c (find_base_value): Adjust fall through comment.
* cfgexpand.c (expand_debug_expr): Likewise.
* combine.c (find_split_point): Likewise.
(expand_compound_operation): Likewise. Add FALLTHRU.
(make_compound_operation): Adjust fall through comment.
(canon_reg_for_combine): Add FALLTHRU.
(force_to_mode): Adjust fall through comment.
(simplify_shift_const_1): Likewise.
(simplify_comparison): Likewise.
* config/aarch64/aarch64-builtins.c (aarch64_simd_expand_args): Add
FALLTHRU.
* config/aarch64/predicates.md: Likewise.
* config/i386/i386.c (function_arg_advance_32): Likewise.
(ix86_gimplify_va_arg): Likewise.
(print_reg): Likewise.
(ix86_print_operand): Likewise.
(ix86_build_const_vector): Likewise.
(ix86_expand_branch): Likewise.
(ix86_sched_init_global): Adjust fall through comment.
(ix86_expand_args_builtin): Add FALLTHRU.
(ix86_expand_builtin): Likewise.
(ix86_expand_vector_init_one_var): Likewise.
* config/rs6000/rs6000.c (rs6000_emit_vector_compare_inner): Likewise.
(rs6000_adjust_cost): Likewise.
(insn_must_be_first_in_group): Likewise.
* config/rs6000/rs6000.md: Likewise. Adjust fall through comment.
* dbxout.c (dbxout_symbol): Adjust fall through comment.
* df-scan.c (df_uses_record): Likewise.
* dojump.c (do_jump): Add FALLTHRU.
* dwarf2out.c (mem_loc_descriptor): Likewise. Adjust fall through
comment.
(resolve_args_picking_1): Adjust fall through comment.
(loc_list_from_tree_1): Likewise.
* expmed.c (make_tree): Likewise.
* expr.c (expand_expr_real_2): Add FALLTHRU.
(expand_expr_real_1): Likewise. Adjust fall through comment.
* fold-const.c (const_binop): Adjust fall through comment.
(fold_truth_not_expr): Likewise.
(fold_cond_expr_with_comparison): Add FALLTHRU.
(fold_binary_loc): Likewise.
(contains_label_1): Adjust fall through comment.
(multiple_of_p): Likewise.
* gcov-tool.c (process_args): Add FALLTHRU.
* genattrtab.c (check_attr_test): Likewise.
(write_test_expr): Likewise.
* genconfig.c (walk_insn_part): Likewise.
* genpreds.c (validate_exp): Adjust fall through comment.
(needs_variable): Likewise.
* gensupport.c (get_alternatives_number): Add FALLTHRU.
(subst_dup): Likewise.
* gimple-pretty-print.c (dump_gimple_assign): Likewise.
* gimplify.c (gimplify_addr_expr): Adjust fall through comment.
(gimplify_scan_omp_clauses): Add FALLTHRU.
(goa_stabilize_expr): Likewise.
* graphite-isl-ast-to-gimple.c (substitute_ssa_name): Adjust fall
through comment.
* hsa-gen.c (get_address_from_value): Likewise.
* ipa-icf.c (sem_function::hash_stmt): Likewise.
* ira.c (ira_setup_alts): Add FALLTHRU.
* lra-eliminations.c (lra_eliminate_regs_1): Adjust fall through
comment.
* lto-streamer-out.c (lto_output_tree_ref): Add FALLTHRU.
* opts.c (common_handle_option): Likewise.
* read-rtl.c (read_rtx_code): Likewise.
* real.c (round_for_format): Likewise.
* recog.c (asm_operand_ok): Likewise.
* reginfo.c (reg_scan_mark_refs): Adjust fall through comment.
* reload1.c (set_label_offsets): Likewise.
(eliminate_regs_1): Likewise.
(reload_reg_reaches_end_p): Likewise.
* rtlanal.c (commutative_operand_precedence): Add FALLTHRU.
(rtx_cost): Likewise.
* sched-rgn.c (is_exception_free): Likewise.
* simplify-rtx.c (simplify_rtx): Adjust fall through comment.
* stor-layout.c (int_mode_for_mode): Likewise.
* toplev.c (print_to_asm_out_file): Likewise.
(print_to_stderr): Likewise.
* tree-cfg.c (gimple_verify_flow_info): Likewise.
* tree-chrec.c (chrec_fold_plus_1): Add FALLTHRU.
(chrec_fold_multiply): Likewise.
(evolution_function_is_invariant_rec_p): Likewise.
(for_each_scev_op): Likewise.
* tree-data-ref.c (siv_subscript_p): Likewise.
(get_references_in_stmt): Likewise.
* tree.c (find_placeholder_in_expr): Adjust fall through comment.
(substitute_in_expr): Likewise.
(type_cache_hasher::equal): Likewise.
(walk_type_fields): Likewise.
* var-tracking.c (adjust_mems): Add FALLTHRU.
(set_dv_changed): Adjust fall through comment.
* varasm.c (default_function_section): Add FALLTHRU.
gcc/c-family/
* c-common.c (scalar_to_vector): Adjust fall through comment.
* c-opts.c (c_common_handle_option): Likewise.
* c-pragma.c (handle_pragma_pack): Add FALLTHRU.
* c-pretty-print.c (c_pretty_printer::postfix_expression): Adjust
fall through comment.
* cilk.c (extract_free_variables): Add FALLTHRU.
gcc/c/
* c-parser.c (c_parser_external_declaration): Add FALLTHRU.
(c_parser_postfix_expression): Likewise.
* c-typeck.c (build_unary_op): Adjust fall through comment.
(c_mark_addressable): Likewise.
gcc/cp/
* call.c (add_builtin_candidate): Add FALLTHRU.
(build_integral_nontype_arg_conv): Adjust fall through comment.
(build_new_op_1): Add FALLTHRU.
(convert_like_real): Adjust fall through comment.
* class.c (fixed_type_or_null): Likewise.
* constexpr.c (cxx_eval_constant_expression): Likewise.
(potential_constant_expression_1): Likewise. Add FALLTHRU.
* cp-gimplify.c (cp_gimplify_expr): Adjust fall through comment.
(cp_fold): Add FALLTHRU.
* cvt.c (build_expr_type_conversion): Adjust fall through comment.
* cxx-pretty-print.c (pp_cxx_unqualified_id): Add FALLTHRU.
(pp_cxx_qualified_id): Likewise.
(cxx_pretty_printer::constant): Adjust fall through comment.
(cxx_pretty_printer::primary_expression): Add FALLTHRU.
(pp_cxx_pm_expression): Adjust fall through comment.
(cxx_pretty_printer::expression): Add FALLTHRU.
(cxx_pretty_printer::declaration_specifiers): Reformat code.
(pp_cxx_type_specifier_seq): Adjust fall through comment.
(pp_cxx_ptr_operator): Likewise. Add FALLTHRU.
* error.c (dump_type): Adjust fall through comment.
(dump_decl): Likewise.
* mangle.c (write_type): Likewise.
* method.c (synthesized_method_walk): Add FALLTHRU.
* name-lookup.c (arg_assoc_type): Likewise.
* parser.c (cp_lexer_print_token): Adjust fall through comment.
(cp_parser_primary_expression): Add FALLTHRU.
(cp_parser_operator): Likewise.
* pt.c (find_parameter_packs_r): Likewise.
(tsubst_aggr_type): Adjust fall through comment.
* semantics.c (finish_omp_clauses): Add FALLTHRU.
* tree.c (lvalue_kind): Likewise.
gcc/fortran/
* decl.c (match_attr_spec): Add FALLTHRU.
* primary.c (match_arg_list_function): Likewise.
* resolve.c (resolve_operator): Adjust fall through comment.
(fixup_charlen): Add FALLTHRU.
(resolve_allocate_expr): Adjust fall through comment.
* trans-array.c (gfc_conv_ss_startstride): Add FALLTHRU.
* trans-intrinsic.c (gfc_conv_intrinsic_len): Adjust fall through
comment.
gcc/java/
* expr.c (java_truthvalue_conversion): Adjust fall through comment.
* jcf-io.c (verify_constant_pool): Likewise.
* typeck.c (promote_type): Likewise.
gcc/objc/
* objc-encoding.c (encode_type): Add FALLTHRU.
libcpp/
* lex.c (search_line_fast): Add FALLTHRU.
(_cpp_lex_direct): Likewise.
(cpp_token_val_index): Adjust fall through comment.
* macro.c (parse_params): Add FALLTHRU.
* pch.c (count_defs): Adjust fall through comment.
(write_defs): Likewise.
libiberty/
* cp-demangle.c (d_print_mod): Add FALLTHRU.
upstream hash:
e3533433b8efa642ea08f2704b1dd7b7f741fbc3
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239410
138bc75d-0d04-0410-961f-
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Change-Id: I4ebe40df8514b8ec4a6d5c701b2b672107fcc40c
matz [Mon, 18 Apr 2016 20:36:27 +0000 (20:36 +0000)]
* tree.h (TYPE_ALIGN, DECL_ALIGN): Return shifted amount.
(SET_TYPE_ALIGN, SET_DECL_ALIGN): New.
* tree-core.h (tree_type_common.align): Use bit-field.
(tree_type_common.spare): New.
(tree_decl_common.off_align): Make smaller.
(tree_decl_common.align): Use bit-field.
* expr.c (expand_expr_addr_expr_1): Use SET_TYPE_ALIGN.
* omp-low.c (install_var_field): Use SET_DECL_ALIGN.
(scan_sharing_clauses): Ditto.
(finish_taskreg_scan): Use SET_DECL_ALIGN and SET_TYPE_ALIGN.
(omp_finish_file): Ditto.
* stor-layout.c (do_type_align): Use SET_DECL_ALIGN.
(layout_decl): Ditto.
(relayout_decl): Ditto.
(finalize_record_size): Use SET_TYPE_ALIGN.
(finalize_type_size): Ditto.
(finish_builtin_struct): Ditto.
(layout_type): Ditto.
(initialize_sizetypes): Ditto.
* targhooks.c (std_gimplify_va_arg_expr): Use SET_TYPE_ALIGN.
* tree-nested.c (insert_field_into_struct): Use SET_TYPE_ALIGN.
(lookup_field_for_decl): Use SET_DECL_ALIGN.
(get_chain_field): Ditto.
(get_trampoline_type): Ditto.
(get_nl_goto_field): Ditto.
* tree-streamer-in.c (unpack_ts_decl_common_value_fields): Use
SET_DECL_ALIGN.
(unpack_ts_type_common_value_fields): Use SET_TYPE_ALIGN.
* gimple-expr.c (copy_var_decl): Use SET_DECL_ALIGN.
* tree.c (make_node_stat): Use SET_DECL_ALIGN and SET_TYPE_ALIGN.
(build_qualified_type): Use SET_TYPE_ALIGN.
(build_aligned_type, build_range_type_1): Ditto.
(build_atomic_base): Ditto.
(build_common_tree_nodes): Ditto.
* cfgexpand.c (align_local_variable): Use SET_DECL_ALIGN.
(expand_one_stack_var_at): Ditto.
* coverage.c (build_var): Use SET_DECL_ALIGN.
* except.c (init_eh): Ditto.
* function.c (assign_parm_setup_block): Ditto.
* symtab.c (increase_alignment_1): Ditto.
* tree-ssa-ccp.c (fold_builtin_alloca_with_align): Ditto.
* tree-vect-stmts.c (ensure_base_align): Ditto.
* varasm.c (align_variable): Ditto.
(assemble_variable): Ditto.
(build_constant_desc): Ditto.
(output_constant_def_contents): Ditto.
* config/arm/arm.c (arm_relayout_function): Use SET_DECL_ALIGN.
* config/avr/avr.c (avr_adjust_type_node): Use SET_TYPE_ALIGN.
* config/mips/mips.c (mips_std_gimplify_va_arg_expr): Ditto.
* config/msp430/msp430.c (msp430_gimplify_va_arg_expr): Ditto.
* config/spu/spu.c (spu_build_builtin_va_list): Use SET_DECL_ALIGN.
ada/
* gcc-interface/decl.c (gnat_to_gnu_entity): Use SET_TYPE_ALIGN.
(gnat_to_gnu_field): Ditto.
(components_to_record): Ditto.
(create_variant_part_from): Ditto.
(copy_and_substitute_in_size): Ditto.
(substitute_in_type): Ditto.
* gcc-interface/utils.c (make_aligning_type): Use SET_TYPE_ALIGN.
(make_packable_type): Ditto.
(maybe_pad_type): Ditto.
(finish_fat_pointer_type): Ditto.
(finish_record_type): Ditto and use SET_DECL_ALIGN.
(rest_of_record_type_compilation): Use SET_TYPE_ALIGN.
(create_field_decl): Use SET_DECL_ALIGN.
c-family/
* c-common.c (handle_aligned_attribute): Use SET_TYPE_ALIGN
and SET_DECL_ALIGN.
c/
* c-decl.c (merge_decls): Use SET_DECL_ALIGN and SET_TYPE_ALIGN.
(grokdeclarator, parser_xref_tag, finish_enum): Use SET_TYPE_ALIGN.
cp/
* class.c (build_vtable): Use SET_DECL_ALIGN and SET_TYPE_ALIGN.
(layout_class_type): Ditto.
(build_base_field): Use SET_DECL_ALIGN.
(fixup_attribute_variants): Use SET_TYPE_ALIGN.
* decl.c (duplicate_decls): Use SET_DECL_ALIGN.
(record_unknown_type): Use SET_TYPE_ALIGN.
(cxx_init_decl_processing): Ditto.
(copy_type_enum): Ditto.
(grokfndecl): Use SET_DECL_ALIGN.
(copy_type_enum): Use SET_TYPE_ALIGN.
* pt.c (instantiate_class_template_1): Use SET_TYPE_ALIGN.
(tsubst): Ditto.
* tree.c (cp_build_qualified_type_real): Use SET_TYPE_ALIGN.
* lambda.c (maybe_add_lambda_conv_op): Use SET_DECL_ALIGN.
* method.c (implicitly_declare_fn): Use SET_DECL_ALIGN.
* rtti.c (emit_tinfo_decl): Ditto.
fortran/
* trans-io.c (gfc_build_io_library_fndecls): Use SET_TYPE_ALIGN.
* trans-common.c (build_common_decl): Use SET_DECL_ALIGN.
* trans-types.c (gfc_add_field_to_struct): Use SET_DECL_ALIGN.
go/
* go-gcc.cc (Gcc_backend::implicit_variable): Use SET_DECL_ALIGN.
java/
* class.c (add_method_1): Use SET_DECL_ALIGN.
(make_class_data): Ditto.
(emit_register_classes_in_jcr_section): Ditto.
* typeck.c (build_java_array_type): Ditto.
objc/
* objc-act.c (objc_build_struct): Use SET_DECL_ALIGN.
libcc1/
* plugin.cc (plugin_finish_record_or_union): Use SET_TYPE_ALIGN.
upstream hash:
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235172
138bc75d-0d04-0410-961f-
82ee72b054a4
Change-Id: Ia135e37556ac5bc0e2db4cc2a940d8d31e243ade
tschwinge [Thu, 4 Aug 2016 13:35:19 +0000 (13:35 +0000)]
C/C++: Simplify handling of location information for OpenACC routine directives
gcc/c/
* c-parser.c (struct oacc_routine_data): New.
(c_parser_declaration_or_fndef, c_parser_oacc_routine): Use it.
Simplify code.
(c_finish_oacc_routine): Likewise. Don't attach clauses to "omp
declare target" attribute.
gcc/cp/
* parser.h (struct cp_omp_declare_simd_data): New.
(struct cp_parser): Use it for oacc_routine member.
* parser.c (cp_ensure_no_oacc_routine, cp_parser_oacc_routine)
(cp_parser_late_parsing_oacc_routine, cp_finalize_oacc_routine):
Use it. Simplify code.
(cp_parser_new): Initialize all members pointing to special
parsing data structures.
(cp_parser_cilk_simd_fn_vector_attrs): Initialize
parser->cilk_simd_fn_info->clauses.
(cp_parser_omp_declare_simd): Initialize
parser->omp_declare_simd->clauses.
(cp_parser_late_parsing_omp_declare_simd): Simplify code.
upstream hash:
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239127
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Change-Id: I6e8b2ad2102b50798fd0fb7b373e6c4ccb17acd7
mpolacek [Mon, 13 Jun 2016 08:57:02 +0000 (08:57 +0000)]
PR middle-end/71476
* gimplify.c (maybe_warn_switch_unreachable): Factored out of
gimplify_switch_expr.
(warn_switch_unreachable_r): New function.
* c-c++-common/Wswitch-unreachable-4.c: New test.
* gcc.dg/Wswitch-unreachable-2.c: New test.
* g++.dg/tm/jump1.C: Move dg-warning.
upstream hash:
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@237367
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Change-Id: Ie8bc6fb965fdb08c7e76ee02fe01eec4707336b0
mpolacek [Tue, 31 May 2016 14:55:05 +0000 (14:55 +0000)]
* gimplify.c (gimplify_switch_expr): Also handle GIMPLE_TRY.
* c-c++-common/Wswitch-unreachable-3.c: New test.
* g++.dg/warn/Wswitch-unreachable-1.C: New test.
upstream hash:
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@236924
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Change-Id: Ic1e69ef6931e9f4051060cc37bd33c9a86ad2df3
mpolacek [Tue, 24 May 2016 16:22:31 +0000 (16:22 +0000)]
PR c/71249
* gimplify.c (gimplify_switch_expr): Look into the innermost lexical
scope.
* c-c++-common/Wswitch-unreachable-2.c: New test.
upstream hash:
6ef0143d8a1ce423db0ae0da55760b4fb82f3bdf
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@236649
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Change-Id: I1270c2aea4e4561f72a9801607bcdfc5edab9a03
mpolacek [Mon, 23 May 2016 15:37:09 +0000 (15:37 +0000)]
PR c/49859
* common.opt (Wswitch-unreachable): New option.
* doc/invoke.texi: Document -Wswitch-unreachable.
* gimplify.c (gimplify_switch_expr): Implement the -Wswitch-unreachable warning.
* c-c++-common/Wswitch-unreachable-1.c: New test.
* gcc.dg/Wswitch-unreachable-1.c: New test.
* c-c++-common/goacc/sb-2.c (void foo): Add dg-warning.
* g++.dg/cpp0x/lambda/lambda-switch.C (main): Likewise.
* g++.dg/gomp/block-10.C: Likewise.
* gcc.dg/gomp/block-10.c: Likewise.
* g++.dg/gomp/block-9.C: Likewise.
* gcc.dg/gomp/block-9.c: Likewise.
* g++.dg/gomp/target-1.C: Likewise.
* g++.dg/gomp/target-2.C: Likewise.
* gcc.dg/gomp/target-1.c: Likewise.
* gcc.dg/gomp/target-2.c: Likewise.
* g++.dg/gomp/taskgroup-1.C: Likewise.
* gcc.dg/gomp/taskgroup-1.c: Likewise.
* gcc.dg/gomp/teams-1.c: Likewise.
* g++.dg/gomp/teams-1.C: Likewise.
* g++.dg/overload/error3.C: Likewise.
* g++.dg/tm/jump1.C: Likewise.
* g++.dg/torture/pr40335.C: Likewise.
* gcc.dg/c99-vla-jump-5.c: Likewise.
* gcc.dg/switch-warn-1.c: Likewise.
* gcc.dg/Wjump-misses-init-1.c: Use -Wno-switch-unreachable.
* gcc.dg/nested-func-1.c: Likewise.
* gcc.dg/pr67784-4.c: Likewise.
upstream hash:
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@236597
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Change-Id: I8f3be300f4bbb9695c6a4257cf47851241c19fe7
mpolacek [Tue, 26 Apr 2016 14:59:40 +0000 (14:59 +0000)]
PR c/67784
* c-parser.c (c_parser_maybe_reclassify_token): New function factored out of ...
(c_parser_for_statement): ... here.
(c_parser_if_statement): Use it.
(c_parser_switch_statement): Use it.
(c_parser_while_statement): Use it.
* gcc.dg/pr67784-3.c: New test.
* gcc.dg/pr67784-4.c: New test.
* gcc.dg/pr67784-5.c: New test.
upstream hash:
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235446
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Change-Id: I3f6bb239a239135d2e498842b6de8390fc9eeaa5
Denis Khalikov [Thu, 30 Aug 2018 15:57:41 +0000 (18:57 +0300)]
[THUMB2] Frame pointer for arm with THUMB2 mode.
Set frame pointer to the predictable location in the stack frame
for arm with THUMB2 mode.
Denis Khalikov <d.khalikov@partner.samsung.com>
* config/arm/arm.c (arm_emit_multi_reg_pop_no_return): New function.
(arm_compute_initial_elimination_offset): Add support for
TARGET_THUMB_STACK_UNWIND.
(arm_expand_prologue): Emit function prologue related to
TARGET_THUMB_STACK_UNWIND.
(thumb2_expand_return): Emit function epilogue related to
TARGET_THUMB_STACK_UNWIND.
(arm_expand_epilogue): Emit function epilogue related to
TARGET_THUMB_STACK_UNWIND.
* config/arm/arm.h (TARGET_THUMB_STACK_UNWIND): New define.
(INITIAL_ELIMINATION_OFFSET): Add support for
TARGET_THUMB_STACK_UNWIND.
* config/arm/arm.opt: Add compile-time option THUMB_FP.
* gcc/testsuite/c-c++-common/asan/fast-unwind-thumb.c: New tests.
Change-Id: I45a68a1216f3115c5199e5cea14c344fabe11fc1
Michail Kashkarov [Wed, 15 Nov 2017 17:50:30 +0000 (20:50 +0300)]
[ASan] Add support for lsan background leak checking thread.
Change-Id: I61dbebdecd0f608736e8a1649595868cc119a8e4
Michail Kashkarov [Thu, 19 Oct 2017 19:02:41 +0000 (22:02 +0300)]
[LSan] Add new experimental option for checking long-running processes.
New LSan option: leak_check_interval_s:
Spawns a background thread at startup which periodically do recoverable
leak check with given interval.
Report files (if log_path option != stderr|stdout) are appended with
prefix "in-progress" and for the DoLeakCheck() call at exit -
are restores back.
System daemons can be leak sanitized right after system startup by adding
"Environment=LSAN_OPTIONS=...:leak_check_interval_s=60"
field in the systemd service file for leak checking every 60 seconds.
Change-Id: Ia78044ec45092f0de96818bd0114d4c7a49cb7e1
Slava Barinov [Fri, 27 Jul 2018 09:13:41 +0000 (12:13 +0300)]
[Test] Switch off cilkplus testing
Intel-only proprietary cilkplus is not needed in Tizen and is not support, we
don't need to run the tests.
gcc/testsuite/g++.dg/dg.exp: remove cilk-plus.exp running
Change-Id: Iccb0153f76ec0eceb7afade0dbf5e43d3c9dd6b3
Signed-off-by: Slava Barinov <v.barinov@samsung.com>
Mikhail Kashkarov [Thu, 30 Aug 2018 09:20:25 +0000 (12:20 +0300)]
packaging: Add macroses to test linaro-gcc on target device
- run_tests_on_device:
1. Turn on linaro-gcc tests.
2. Do not remove 'obj/' directory.
3. Skip configure/make commands in the %build stage.
- exit_on_make_finish:
Exit right after "make BOOT_CFLAGS=..." step.
Change-Id: I77a85befa7756922963b63488aaf8cdc431fec0f
Denis Khalikov [Tue, 21 Aug 2018 13:17:34 +0000 (16:17 +0300)]
[Sanitizers] GCC fails to build libasan with -mthumb and -fno-omit-frame-pointer
GCC does not allow to have frame pointer register as a clobber register
for inline assembler, when flag -fno-omit-frame-pointer is added.
By default, arm with mthumb mode uses r7 as a frame pointer register.
https://reviews.llvm.org/D50180
Change-Id: I5f5a3c695353ba2fe4195fd6054aedb7ee11e1af
Mikhail Kashkarov [Fri, 13 Jul 2018 14:05:21 +0000 (17:05 +0300)]
Repair collecting files for testresults rpm package.
Different .log files with the same name from gmp/mpfr are overwriting on copy,
put the in the separate directories.
Change-Id: I77761f1ff589252b4e8816dc12e9025d360fc5a0
Mikhail Kashkarov [Thu, 17 May 2018 13:32:19 +0000 (16:32 +0300)]
packaging: Add -Wformat options to disable warnings and tests FAIL.
"-Wformat-..." options generate warnings like:
cc1: warning: -Wformat-security ignored without -Wformat [-Wformat-security]
that makes a lot of unexpected failures in testsuite while checking produced
output (FAIL: .. test for excess errors) and also results comparison is messed
up for the new tests.
Insert -Wformat if it's missing.
Change-Id: Ia61f256b1f8c3fe5b3ee3c02d363eb901c68adbe
Denis Khalikov [Wed, 29 Nov 2017 11:21:07 +0000 (14:21 +0300)]
[ASan] Add FORTIFY_SOURCE interceptors
List of interceptors:
__strcat_chk,
__strncat_chk,
__strcpy_chk,
__strncpy_chk.
__poll_chk,
__ppoll_chk,
__read_chk,
__recv_chk,
__recvfrom_chk,
__pread_chk,
__pread64_chk.
__getgroups_chk,
__getcwd_chk,
__realpath_chk,
__confstr_chk.
__mbstowcs_chk,
__mbsrtowcs_chk,
__mbsnrtowcs_chk,
__wcstombs_chk,
__wcsrtombs_chk,
__wcsnrtombs_chk,
__wcrtomb_chk,
__ttyname_r_chk.
Change-Id: I16ef4d2d80089b96e5c51ea5160b706b35f9ce18
Kuba Mracek [Fri, 22 Jun 2018 12:56:46 +0000 (15:56 +0300)]
[asan] Use linker initialization for the allocator
This saves ~2 MB of dirty memory footprint. Can be a big deal on mobile devices especially when running multiple processes with ASan.
Differential Revision: https://reviews.llvm.org/D40627
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@320660
91177308-0d34-0410-b5e6-
96231b3b80d8
Change-Id: I409b9dc7f73e13248987dd38d96a074ffc2ff044
Alex Shlyapnikov [Fri, 22 Jun 2018 12:33:11 +0000 (15:33 +0300)]
[Sanitizers] Move cached allocator_may_return_null flag to sanitizer_allocator
Summary:
Move cached allocator_may_return_null flag to sanitizer_allocator.cc and
provide API to consolidate and unify the behavior of all specific allocators.
Make all sanitizers using CombinedAllocator to follow
AllocatorReturnNullOrDieOnOOM() rules to behave the same way when OOM
happens.
When OOM happens, turn allocator_out_of_memory flag on regardless of
allocator_may_return_null flag value (it used to not to be set when
allocator_may_return_null == true).
release_to_os_interval_ms and rss_limit_exceeded will likely be moved to
sanitizer_allocator.cc too (later).
Reviewers: eugenis
Subscribers: srhines, kubamracek, llvm-commits
Differential Revision: https://reviews.llvm.org/D34310
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@305858
91177308-0d34-0410-b5e6-
96231b3b80d8
Change-Id: I29ae28a1f9c569d69666936111e307c3aecf9314
Alex Shlyapnikov [Fri, 22 Jun 2018 12:30:32 +0000 (15:30 +0300)]
[Sanitizer] Remove CombinedAllocator::Allocate's 'cleared' parameter
Summary:
CombinedAllocator::Allocate cleared parameter is not used anywhere and
seem to be obsolete.
Reviewers: eugenis
Subscribers: llvm-commits, kubamracek
Differential Revision: https://reviews.llvm.org/D34289
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@305590
91177308-0d34-0410-b5e6-
96231b3b80d8
Change-Id: I57958f6ea291bb31027070f93ad652598c69d1fe
Alex Shlyapnikov [Fri, 22 Jun 2018 12:27:29 +0000 (15:27 +0300)]
[ASan] Move rss_limit_is_exceeded_ flag to ASan.
Summary:
Move the OOM decision based on RSS limits out of generic allocator to
ASan allocator, where it makes more sense at the moment.
Reviewers: eugenis
Subscribers: kubamracek, llvm-commits
Differential Revision: https://reviews.llvm.org/D34180
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@305342
91177308-0d34-0410-b5e6-
96231b3b80d8
Change-Id: I2c7ccdfbfd420b74cbc5c96a50933bace9b88ccf
Kostya Kortchinsky [Fri, 22 Jun 2018 12:26:11 +0000 (15:26 +0300)]
Corrected D27428: Do not use the alignment-rounded-up size with secondary
Summary:
I atually had an integer overflow on 32-bit with D27428 that didn't reproduce
locally, as the test servers would manage allocate addresses in the 0xffffxxxx
range, which led to some issues when rounding addresses.
At this point, I feel that Scudo could benefit from having its own combined
allocator, as we don't get any benefit from the current one, but have to work
around some hurdles (alignment checks, rounding up that is no longer needed,
extraneous code).
Reviewers: kcc, alekseyshl
Subscribers: llvm-commits, kubabrecka
Differential Revision: https://reviews.llvm.org/D27681
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@289572
91177308-0d34-0410-b5e6-
96231b3b80d8
Change-Id: If9f3b384566cffa0bdd1740ef2266a6a9d5f6fa4
Evgeniy Stepanov [Fri, 22 Jun 2018 12:21:18 +0000 (15:21 +0300)]
Return memory to OS right after free (not in the async thread).
Summary:
In order to avoid starting a separate thread to return unused memory to
the system (the thread interferes with process startup on Android,
Zygota waits for all threads to exit before fork, but this thread never
exits), try to return it right after free.
Reviewers: eugenis
Subscribers: cryptoad, filcab, danalbert, kubabrecka, llvm-commits
Patch by Aleksey Shlyapnikov.
Differential Revision: https://reviews.llvm.org/D27003
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@288091
91177308-0d34-0410-b5e6-
96231b3b80d8
Change-Id: I2e01818bbdf3a0b9f0855b28d963b8016000abc8
Denis Khalikov [Tue, 19 Jun 2018 10:12:36 +0000 (13:12 +0300)]
PR other/86198
* elf.c (elf_add): Increase ".note.gnu.build-id" section size
checking up to 36 bytes.
Change-Id: I5a6046a551395ad61c8013a347c875ad22b33599