[compiler-rt] r349730 - [HWASAN] Add support for memory intrinsics
Kostya Serebryany via llvm-commits
llvm-commits at lists.llvm.org
Thu Dec 20 10:57:58 PST 2018
The bot is failing, please fix or revert.
Or will it fix itself once the compiler change is committed?
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-android/builds/18269/steps/run%20lit%20tests%20%5Baarch64%2Fbullhead-user%2FOPM6.171019.030.B1%5D/logs/stdio
FAIL: HWAddressSanitizer-aarch64 :: TestCases/mem-intrinsics.c (444 of 1381)
******************** TEST 'HWAddressSanitizer-aarch64 ::
TestCases/mem-intrinsics.c' FAILED ********************
Script:
--
: 'RUN: at line 1';
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm/projects/compiler-rt/test/sanitizer_common/android_commands/android_compile.py
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm_build64/bin/clang
-fsanitize=hwaddress -mllvm -hwasan-generate-tags-with-calls
--target=aarch64-linux-android
--sysroot=/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/android_ndk/standalone-aarch64/sysroot
-B/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/android_ndk/standalone-aarch64
-pie -fuse-ld=gold -Wl,--enable-new-dtags -gline-tables-only
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm/projects/compiler-rt/test/hwasan/TestCases/mem-intrinsics.c
-DTEST_NO=1 -mllvm -hwasan-instrument-mem-intrinsics -o
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/compiler_rt_build_android_aarch64/test/hwasan/AARCH64/TestCases/Output/mem-intrinsics.c.tmp
&& not /var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/compiler_rt_build_android_aarch64/test/hwasan/AARCH64/TestCases/Output/mem-intrinsics.c.tmp
2>&1 | FileCheck
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm/projects/compiler-rt/test/hwasan/TestCases/mem-intrinsics.c
--check-prefix=WRITE
: 'RUN: at line 2';
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm/projects/compiler-rt/test/sanitizer_common/android_commands/android_compile.py
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm_build64/bin/clang
-fsanitize=hwaddress -mllvm -hwasan-generate-tags-with-calls
--target=aarch64-linux-android
--sysroot=/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/android_ndk/standalone-aarch64/sysroot
-B/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/android_ndk/standalone-aarch64
-pie -fuse-ld=gold -Wl,--enable-new-dtags -gline-tables-only
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm/projects/compiler-rt/test/hwasan/TestCases/mem-intrinsics.c
-DTEST_NO=2 -mllvm -hwasan-instrument-mem-intrinsics -o
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/compiler_rt_build_android_aarch64/test/hwasan/AARCH64/TestCases/Output/mem-intrinsics.c.tmp
&& not /var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/compiler_rt_build_android_aarch64/test/hwasan/AARCH64/TestCases/Output/mem-intrinsics.c.tmp
2>&1 | FileCheck
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm/projects/compiler-rt/test/hwasan/TestCases/mem-intrinsics.c
--check-prefix=READ
: 'RUN: at line 3';
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm/projects/compiler-rt/test/sanitizer_common/android_commands/android_compile.py
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm_build64/bin/clang
-fsanitize=hwaddress -mllvm -hwasan-generate-tags-with-calls
--target=aarch64-linux-android
--sysroot=/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/android_ndk/standalone-aarch64/sysroot
-B/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/android_ndk/standalone-aarch64
-pie -fuse-ld=gold -Wl,--enable-new-dtags -gline-tables-only
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm/projects/compiler-rt/test/hwasan/TestCases/mem-intrinsics.c
-DTEST_NO=3 -mllvm -hwasan-instrument-mem-intrinsics -o
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/compiler_rt_build_android_aarch64/test/hwasan/AARCH64/TestCases/Output/mem-intrinsics.c.tmp
&& not /var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/compiler_rt_build_android_aarch64/test/hwasan/AARCH64/TestCases/Output/mem-intrinsics.c.tmp
2>&1 | FileCheck
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm/projects/compiler-rt/test/hwasan/TestCases/mem-intrinsics.c
--check-prefix=WRITE: 'RUN: at line 4';
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm/projects/compiler-rt/test/sanitizer_common/android_commands/android_compile.py
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm_build64/bin/clang
-fsanitize=hwaddress -mllvm -hwasan-generate-tags-with-calls
--target=aarch64-linux-android
--sysroot=/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/android_ndk/standalone-aarch64/sysroot
-B/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/android_ndk/standalone-aarch64
-pie -fuse-ld=gold -Wl,--enable-new-dtags -gline-tables-only
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm/projects/compiler-rt/test/hwasan/TestCases/mem-intrinsics.c
-DTEST_NO=2 -mllvm -hwasan-instrument-mem-intrinsics -o
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/compiler_rt_build_android_aarch64/test/hwasan/AARCH64/TestCases/Output/mem-intrinsics.c.tmp
&& not env HWASAN_OPTIONS=disable_allocator_tagging=1:random_tags=0:abort_on_error=0:halt_on_error=0
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/compiler_rt_build_android_aarch64/test/hwasan/AARCH64/TestCases/Output/mem-intrinsics.c.tmp
2>&1 | FileCheck
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm/projects/compiler-rt/test/hwasan/TestCases/mem-intrinsics.c
--check-prefix=RECOVER
--
Exit Code: 1
Command Output (stderr):
--
clang (LLVM option parsing): Unknown command line argument
'-hwasan-instrument-mem-intrinsics'. Try: 'clang (LLVM option
parsing) -help'
clang (LLVM option parsing): Did you mean '-esan-instrument-memintrinsics'?
--
********************
Testing: 0 .. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
Testing Time: 211.25s
********************
Failing Tests (1):
HWAddressSanitizer-aarch64 :: TestCases/mem-intrinsics.c
On Thu, Dec 20, 2018 at 1:13 AM Eugene Leviant via llvm-commits <
llvm-commits at lists.llvm.org> wrote:
> Author: evgeny777
> Date: Thu Dec 20 01:10:03 2018
> New Revision: 349730
>
> URL: http://llvm.org/viewvc/llvm-project?rev=349730&view=rev
> Log:
> [HWASAN] Add support for memory intrinsics
>
> This is patch complements D55117 implementing __hwasan_mem*
> functions in runtime
>
> Differential revision: https://reviews.llvm.org/D55554
>
> Added:
> compiler-rt/trunk/lib/hwasan/hwasan_checks.h
> compiler-rt/trunk/lib/hwasan/hwasan_memintrinsics.cc
> compiler-rt/trunk/test/hwasan/TestCases/mem-intrinsics.c
> Modified:
> compiler-rt/trunk/lib/hwasan/CMakeLists.txt
> compiler-rt/trunk/lib/hwasan/hwasan.cc
> compiler-rt/trunk/lib/hwasan/hwasan_interface_internal.h
>
> Modified: compiler-rt/trunk/lib/hwasan/CMakeLists.txt
> URL:
> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/hwasan/CMakeLists.txt?rev=349730&r1=349729&r2=349730&view=diff
>
> ==============================================================================
> --- compiler-rt/trunk/lib/hwasan/CMakeLists.txt (original)
> +++ compiler-rt/trunk/lib/hwasan/CMakeLists.txt Thu Dec 20 01:10:03 2018
> @@ -7,6 +7,7 @@ set(HWASAN_RTL_SOURCES
> hwasan_dynamic_shadow.cc
> hwasan_interceptors.cc
> hwasan_linux.cc
> + hwasan_memintrinsics.cc
> hwasan_poisoning.cc
> hwasan_report.cc
> hwasan_thread.cc
>
> Modified: compiler-rt/trunk/lib/hwasan/hwasan.cc
> URL:
> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/hwasan/hwasan.cc?rev=349730&r1=349729&r2=349730&view=diff
>
> ==============================================================================
> --- compiler-rt/trunk/lib/hwasan/hwasan.cc (original)
> +++ compiler-rt/trunk/lib/hwasan/hwasan.cc Thu Dec 20 01:10:03 2018
> @@ -13,20 +13,20 @@
>
> //===----------------------------------------------------------------------===//
>
> #include "hwasan.h"
> -#include "hwasan_mapping.h"
> +#include "hwasan_checks.h"
> #include "hwasan_poisoning.h"
> #include "hwasan_report.h"
> #include "hwasan_thread.h"
> #include "hwasan_thread_list.h"
> #include "sanitizer_common/sanitizer_atomic.h"
> #include "sanitizer_common/sanitizer_common.h"
> -#include "sanitizer_common/sanitizer_flags.h"
> #include "sanitizer_common/sanitizer_flag_parser.h"
> +#include "sanitizer_common/sanitizer_flags.h"
> #include "sanitizer_common/sanitizer_libc.h"
> #include "sanitizer_common/sanitizer_procmaps.h"
> +#include "sanitizer_common/sanitizer_stackdepot.h"
> #include "sanitizer_common/sanitizer_stacktrace.h"
> #include "sanitizer_common/sanitizer_symbolizer.h"
> -#include "sanitizer_common/sanitizer_stackdepot.h"
> #include "ubsan/ubsan_flags.h"
> #include "ubsan/ubsan_init.h"
>
> @@ -365,63 +365,6 @@ void __sanitizer_unaligned_store64(uu64
> *p = x;
> }
>
> -template<unsigned X>
> -__attribute__((always_inline))
> -static void SigTrap(uptr p) {
> -#if defined(__aarch64__)
> - (void)p;
> - // 0x900 is added to do not interfere with the kernel use of lower
> values of
> - // brk immediate.
> - // FIXME: Add a constraint to put the pointer into x0, the same as x86
> branch.
> - asm("brk %0\n\t" ::"n"(0x900 + X));
> -#elif defined(__x86_64__)
> - // INT3 + NOP DWORD ptr [EAX + X] to pass X to our signal handler, 5
> bytes
> - // total. The pointer is passed via rdi.
> - // 0x40 is added as a safeguard, to help distinguish our trap from
> others and
> - // to avoid 0 offsets in the command (otherwise it'll be reduced to a
> - // different nop command, the three bytes one).
> - asm volatile(
> - "int3\n"
> - "nopl %c0(%%rax)\n"
> - :: "n"(0x40 + X), "D"(p));
> -#else
> - // FIXME: not always sigill.
> - __builtin_trap();
> -#endif
> - // __builtin_unreachable();
> -}
> -
> -enum class ErrorAction { Abort, Recover };
> -enum class AccessType { Load, Store };
> -
> -template <ErrorAction EA, AccessType AT, unsigned LogSize>
> -__attribute__((always_inline, nodebug)) static void CheckAddress(uptr p) {
> - tag_t ptr_tag = GetTagFromPointer(p);
> - uptr ptr_raw = p & ~kAddressTagMask;
> - tag_t mem_tag = *(tag_t *)MemToShadow(ptr_raw);
> - if (UNLIKELY(ptr_tag != mem_tag)) {
> - SigTrap<0x20 * (EA == ErrorAction::Recover) +
> - 0x10 * (AT == AccessType::Store) + LogSize>(p);
> - if (EA == ErrorAction::Abort) __builtin_unreachable();
> - }
> -}
> -
> -template <ErrorAction EA, AccessType AT>
> -__attribute__((always_inline, nodebug)) static void
> CheckAddressSized(uptr p,
> -
> uptr sz) {
> - CHECK_NE(0, sz);
> - tag_t ptr_tag = GetTagFromPointer(p);
> - uptr ptr_raw = p & ~kAddressTagMask;
> - tag_t *shadow_first = (tag_t *)MemToShadow(ptr_raw);
> - tag_t *shadow_last = (tag_t *)MemToShadow(ptr_raw + sz - 1);
> - for (tag_t *t = shadow_first; t <= shadow_last; ++t)
> - if (UNLIKELY(ptr_tag != *t)) {
> - SigTrap<0x20 * (EA == ErrorAction::Recover) +
> - 0x10 * (AT == AccessType::Store) + 0xf>(p);
> - if (EA == ErrorAction::Abort) __builtin_unreachable();
> - }
> -}
> -
> void __hwasan_loadN(uptr p, uptr sz) {
> CheckAddressSized<ErrorAction::Abort, AccessType::Load>(p, sz);
> }
>
> Added: compiler-rt/trunk/lib/hwasan/hwasan_checks.h
> URL:
> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/hwasan/hwasan_checks.h?rev=349730&view=auto
>
> ==============================================================================
> --- compiler-rt/trunk/lib/hwasan/hwasan_checks.h (added)
> +++ compiler-rt/trunk/lib/hwasan/hwasan_checks.h Thu Dec 20 01:10:03 2018
> @@ -0,0 +1,79 @@
> +//===-- hwasan_checks.h -----------------------------------------*- C++
> -*-===//
> +//
> +// The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
>
> +//===----------------------------------------------------------------------===//
> +//
> +// This file is a part of HWAddressSanitizer.
> +//
>
> +//===----------------------------------------------------------------------===//
> +
> +#ifndef HWASAN_CHECKS_H
> +#define HWASAN_CHECKS_H
> +
> +#include "hwasan_mapping.h"
> +
> +namespace __hwasan {
> +template <unsigned X>
> +__attribute__((always_inline)) static void SigTrap(uptr p) {
> +#if defined(__aarch64__)
> + (void)p;
> + // 0x900 is added to do not interfere with the kernel use of lower
> values of
> + // brk immediate.
> + // FIXME: Add a constraint to put the pointer into x0, the same as x86
> branch.
> + asm("brk %0\n\t" ::"n"(0x900 + X));
> +#elif defined(__x86_64__)
> + // INT3 + NOP DWORD ptr [EAX + X] to pass X to our signal handler, 5
> bytes
> + // total. The pointer is passed via rdi.
> + // 0x40 is added as a safeguard, to help distinguish our trap from
> others and
> + // to avoid 0 offsets in the command (otherwise it'll be reduced to a
> + // different nop command, the three bytes one).
> + asm volatile(
> + "int3\n"
> + "nopl %c0(%%rax)\n" ::"n"(0x40 + X),
> + "D"(p));
> +#else
> + // FIXME: not always sigill.
> + __builtin_trap();
> +#endif
> + // __builtin_unreachable();
> +}
> +
> +enum class ErrorAction { Abort, Recover };
> +enum class AccessType { Load, Store };
> +
> +template <ErrorAction EA, AccessType AT, unsigned LogSize>
> +__attribute__((always_inline, nodebug)) static void CheckAddress(uptr p) {
> + tag_t ptr_tag = GetTagFromPointer(p);
> + uptr ptr_raw = p & ~kAddressTagMask;
> + tag_t mem_tag = *(tag_t *)MemToShadow(ptr_raw);
> + if (UNLIKELY(ptr_tag != mem_tag)) {
> + SigTrap<0x20 * (EA == ErrorAction::Recover) +
> + 0x10 * (AT == AccessType::Store) + LogSize>(p);
> + if (EA == ErrorAction::Abort)
> + __builtin_unreachable();
> + }
> +}
> +
> +template <ErrorAction EA, AccessType AT>
> +__attribute__((always_inline, nodebug)) static void
> CheckAddressSized(uptr p,
> +
> uptr sz) {
> + CHECK_NE(0, sz);
> + tag_t ptr_tag = GetTagFromPointer(p);
> + uptr ptr_raw = p & ~kAddressTagMask;
> + tag_t *shadow_first = (tag_t *)MemToShadow(ptr_raw);
> + tag_t *shadow_last = (tag_t *)MemToShadow(ptr_raw + sz - 1);
> + for (tag_t *t = shadow_first; t <= shadow_last; ++t)
> + if (UNLIKELY(ptr_tag != *t)) {
> + SigTrap<0x20 * (EA == ErrorAction::Recover) +
> + 0x10 * (AT == AccessType::Store) + 0xf>(p);
> + if (EA == ErrorAction::Abort)
> + __builtin_unreachable();
> + }
> +}
> +} // end namespace __hwasan
> +
> +#endif // HWASAN_CHECKS_H
>
> Modified: compiler-rt/trunk/lib/hwasan/hwasan_interface_internal.h
> URL:
> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/hwasan/hwasan_interface_internal.h?rev=349730&r1=349729&r2=349730&view=diff
>
> ==============================================================================
> --- compiler-rt/trunk/lib/hwasan/hwasan_interface_internal.h (original)
> +++ compiler-rt/trunk/lib/hwasan/hwasan_interface_internal.h Thu Dec 20
> 01:10:03 2018
> @@ -194,6 +194,13 @@ void * __sanitizer_realloc(void *ptr, up
>
> SANITIZER_INTERFACE_ATTRIBUTE
> void * __sanitizer_malloc(uptr size);
> +
> +SANITIZER_INTERFACE_ATTRIBUTE
> +void *__hwasan_memcpy(void *dst, const void *src, uptr size);
> +SANITIZER_INTERFACE_ATTRIBUTE
> +void *__hwasan_memset(void *s, int c, uptr n);
> +SANITIZER_INTERFACE_ATTRIBUTE
> +void *__hwasan_memmove(void *dest, const void *src, uptr n);
> } // extern "C"
>
> #endif // HWASAN_INTERFACE_INTERNAL_H
>
> Added: compiler-rt/trunk/lib/hwasan/hwasan_memintrinsics.cc
> URL:
> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/hwasan/hwasan_memintrinsics.cc?rev=349730&view=auto
>
> ==============================================================================
> --- compiler-rt/trunk/lib/hwasan/hwasan_memintrinsics.cc (added)
> +++ compiler-rt/trunk/lib/hwasan/hwasan_memintrinsics.cc Thu Dec 20
> 01:10:03 2018
> @@ -0,0 +1,45 @@
> +//===-- hwasan_memintrinsics.cc ---------------------------------*- C++
> -*-===//
> +//
> +// The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
>
> +//===----------------------------------------------------------------------===//
> +///
> +/// \file
> +/// This file is a part of HWAddressSanitizer and contains HWASAN
> versions of
> +/// memset, memcpy and memmove
> +///
>
> +//===----------------------------------------------------------------------===//
> +
> +#include <string.h>
> +#include "hwasan.h"
> +#include "hwasan_checks.h"
> +#include "hwasan_flags.h"
> +#include "hwasan_interface_internal.h"
> +#include "sanitizer_common/sanitizer_libc.h"
> +
> +using namespace __hwasan;
> +
> +void *__hwasan_memset(void *block, int c, uptr size) {
> + CheckAddressSized<ErrorAction::Recover, AccessType::Store>(
> + reinterpret_cast<uptr>(block), size);
> + return memset(UntagPtr(block), c, size);
> +}
> +
> +void *__hwasan_memcpy(void *to, const void *from, uptr size) {
> + CheckAddressSized<ErrorAction::Recover, AccessType::Store>(
> + reinterpret_cast<uptr>(to), size);
> + CheckAddressSized<ErrorAction::Recover, AccessType::Load>(
> + reinterpret_cast<uptr>(from), size);
> + return memcpy(UntagPtr(to), UntagPtr(from), size);
> +}
> +
> +void *__hwasan_memmove(void *to, const void *from, uptr size) {
> + CheckAddressSized<ErrorAction::Recover, AccessType::Store>(
> + reinterpret_cast<uptr>(to), size);
> + CheckAddressSized<ErrorAction::Recover, AccessType::Load>(
> + reinterpret_cast<uptr>(from), size);
> + return memmove(UntagPtr(to), UntagPtr(from), size);
> +}
>
> Added: compiler-rt/trunk/test/hwasan/TestCases/mem-intrinsics.c
> URL:
> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/hwasan/TestCases/mem-intrinsics.c?rev=349730&view=auto
>
> ==============================================================================
> --- compiler-rt/trunk/test/hwasan/TestCases/mem-intrinsics.c (added)
> +++ compiler-rt/trunk/test/hwasan/TestCases/mem-intrinsics.c Thu Dec 20
> 01:10:03 2018
> @@ -0,0 +1,37 @@
> +// RUN: %clang_hwasan %s -DTEST_NO=1 -mllvm
> -hwasan-instrument-mem-intrinsics -o %t && not %run %t 2>&1 | FileCheck %s
> --check-prefix=WRITE
> +// RUN: %clang_hwasan %s -DTEST_NO=2 -mllvm
> -hwasan-instrument-mem-intrinsics -o %t && not %run %t 2>&1 | FileCheck %s
> --check-prefix=READ
> +// RUN: %clang_hwasan %s -DTEST_NO=3 -mllvm
> -hwasan-instrument-mem-intrinsics -o %t && not %run %t 2>&1 | FileCheck %s
> --check-prefix=WRITE
> +// RUN: %clang_hwasan %s -DTEST_NO=2 -mllvm
> -hwasan-instrument-mem-intrinsics -o %t && not
> %env_hwasan_opts=halt_on_error=0 %run %t 2>&1 | FileCheck %s
> --check-prefix=RECOVER
> +
> +// REQUIRES: stable-runtime
> +
> +#include <stdio.h>
> +#include <stdlib.h>
> +#include <unistd.h>
> +
> +int main() {
> + char Q[16];
> + char P[16];
> +#if TEST_NO == 1
> + memset(Q, 0, 32);
> +#elif TEST_NO == 2
> + memmove(Q, Q + 16, 16);
> +#elif TEST_NO == 3
> + memcpy(Q, P, 32);
> +#endif
> + write(STDOUT_FILENO, "recovered\n", 10);
> + // WRITE: ERROR: HWAddressSanitizer: tag-mismatch on address
> + // WRITE: WRITE {{.*}} tags: [[PTR_TAG:..]]/[[MEM_TAG:..]] (ptr/mem)
> + // WRITE: Memory tags around the buggy address (one tag corresponds to
> 16 bytes):
> + // WRITE: =>{{.*}}[[MEM_TAG]]
> + // WRITE-NOT: recovered
> +
> + // READ: ERROR: HWAddressSanitizer: tag-mismatch on address
> + // READ: READ {{.*}} tags: [[PTR_TAG:..]]/[[MEM_TAG:..]] (ptr/mem)
> + // READ: Memory tags around the buggy address (one tag corresponds to
> 16 bytes):
> + // READ: =>{{.*}}[[MEM_TAG]]
> + // READ-NOT: recovered
> +
> + // RECOVER: recovered
> + return 0;
> +}
>
>
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