[compiler-rt] r249337 - [lsan] [aarch64] Add support for AArch64

[Adhemerval Zanella via llvm-commits]

Author: azanella
Date: Mon Oct  5 14:16:09 2015
New Revision: 249337

URL: http://llvm.org/viewvc/llvm-project?rev=249337&view=rev
Log:
[lsan] [aarch64] Add support for AArch64

This patch add support for leak sanitizer for aarch64.  Similar to
MIPS it uses a SizeClassAllocator32 due VMA constraints (aarch64
currently supports 39 and 42-bit VMA).

Modified:
    compiler-rt/trunk/cmake/config-ix.cmake
    compiler-rt/trunk/lib/lsan/lsan_allocator.cc
    compiler-rt/trunk/lib/lsan/lsan_common.cc
    compiler-rt/trunk/lib/lsan/lsan_common.h
    compiler-rt/trunk/lib/sanitizer_common/sanitizer_linux.cc

Modified: compiler-rt/trunk/cmake/config-ix.cmake
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/cmake/config-ix.cmake?rev=249337&r1=249336&r2=249337&view=diff
==============================================================================
--- compiler-rt/trunk/cmake/config-ix.cmake (original)
+++ compiler-rt/trunk/cmake/config-ix.cmake Mon Oct  5 14:16:09 2015
@@ -266,7 +266,7 @@ set(ALL_SANITIZER_COMMON_SUPPORTED_ARCH
 set(ALL_ASAN_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64}
     ${MIPS32} ${MIPS64} ${PPC64})
 set(ALL_DFSAN_SUPPORTED_ARCH ${X86_64} ${MIPS64} ${ARM64})
-set(ALL_LSAN_SUPPORTED_ARCH ${X86_64} ${MIPS64})
+set(ALL_LSAN_SUPPORTED_ARCH ${X86_64} ${MIPS64} ${ARM64})
 set(ALL_MSAN_SUPPORTED_ARCH ${X86_64} ${MIPS64} ${ARM64})
 set(ALL_PROFILE_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64} ${PPC64}
     ${MIPS32} ${MIPS64})

Modified: compiler-rt/trunk/lib/lsan/lsan_allocator.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/lsan/lsan_allocator.cc?rev=249337&r1=249336&r2=249337&view=diff
==============================================================================
--- compiler-rt/trunk/lib/lsan/lsan_allocator.cc (original)
+++ compiler-rt/trunk/lib/lsan/lsan_allocator.cc Mon Oct  5 14:16:09 2015
@@ -32,7 +32,7 @@ struct ChunkMetadata {
   u32 stack_trace_id;
 };
 
-#if defined(__mips64)
+#if defined(__mips64) || defined(__aarch64__)
 static const uptr kMaxAllowedMallocSize = 4UL << 30;
 static const uptr kRegionSizeLog = 20;
 static const uptr kNumRegions = SANITIZER_MMAP_RANGE_SIZE >> kRegionSizeLog;

Modified: compiler-rt/trunk/lib/lsan/lsan_common.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/lsan/lsan_common.cc?rev=249337&r1=249336&r2=249337&view=diff
==============================================================================
--- compiler-rt/trunk/lib/lsan/lsan_common.cc (original)
+++ compiler-rt/trunk/lib/lsan/lsan_common.cc Mon Oct  5 14:16:09 2015
@@ -119,6 +119,8 @@ static inline bool CanBeAHeapPointer(upt
   return ((p >> 47) == 0);
 #elif defined(__mips64)
   return ((p >> 40) == 0);
+#elif defined(__aarch64__)
+  return ((p >> SANITIZER_AARCH64_VMA) == 0);
 #else
   return true;
 #endif

Modified: compiler-rt/trunk/lib/lsan/lsan_common.h
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/lsan/lsan_common.h?rev=249337&r1=249336&r2=249337&view=diff
==============================================================================
--- compiler-rt/trunk/lib/lsan/lsan_common.h (original)
+++ compiler-rt/trunk/lib/lsan/lsan_common.h Mon Oct  5 14:16:09 2015
@@ -22,8 +22,9 @@
 #include "sanitizer_common/sanitizer_stoptheworld.h"
 #include "sanitizer_common/sanitizer_symbolizer.h"
 
-#if SANITIZER_LINUX && (defined(__x86_64__) || defined(__mips64)) \
-    && (SANITIZER_WORDSIZE == 64)
+#if SANITIZER_LINUX && (SANITIZER_WORDSIZE == 64) && (defined(__x86_64__) \
+                                                  ||  defined(__mips64) \
+                                                  ||  defined(__aarch64__))
 #define CAN_SANITIZE_LEAKS 1
 #else
 #define CAN_SANITIZE_LEAKS 0

Modified: compiler-rt/trunk/lib/sanitizer_common/sanitizer_linux.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/sanitizer_linux.cc?rev=249337&r1=249336&r2=249337&view=diff
==============================================================================
--- compiler-rt/trunk/lib/sanitizer_common/sanitizer_linux.cc (original)
+++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_linux.cc Mon Oct  5 14:16:09 2015
@@ -497,7 +497,7 @@ void BlockingMutex::CheckLocked() {
 // Note that getdents64 uses a different structure format. We only provide the
 // 32-bit syscall here.
 struct linux_dirent {
-#if SANITIZER_X32
+#if SANITIZER_X32 || defined(__aarch64__)
   u64 d_ino;
   u64 d_off;
 #else
@@ -505,6 +505,9 @@ struct linux_dirent {
   unsigned long      d_off;
 #endif
   unsigned short     d_reclen;
+#ifdef __aarch64__
+  unsigned char      d_type;
+#endif
   char               d_name[256];
 };