commit 98df65432a63c76cfea0b784b0da7d60ff272a8f
author Kirill Stoimenov <kstoimenov@google.com> Wed Nov 02 20:58:36 2022 +0000
committer Copybara-Service <copybara-worker@google.com> Wed Nov 02 14:26:11 2022 -0700
tree ae9b57f4682502d21257c2dd21230522bb38e7d9
parent aa57ff3076cbc58d1ef013534d537e8b7e24ddf1

[Sanitizers] Modified __aarch64__ to use the 64 bit version of the allocator.

This change will switch SizeClassAllocator32 to SizeClassAllocator64 on ARM. This might potentially affect ARM platforms with 39-bit address space. This addresses [[ https://github.com/google/sanitizers/issues/703  | issues/703  ]], but unlike [[ https://reviews.llvm.org/D60243 | D60243 ]] it defaults to 64 bit allocator.

Reviewed By: vitalybuka, MaskRay

Differential Revision: https://reviews.llvm.org/D137136

GitOrigin-RevId: a588cfe37ea36ec4fae35a233a13d3557fba86e9

lib/sanitizer_common/sanitizer_platform.h

diff --git a/lib/sanitizer_common/sanitizer_platform.h b/lib/sanitizer_common/sanitizer_platform.h
index 32005ee..7ecc465 100644
--- a/lib/sanitizer_common/sanitizer_platform.h
+++ b/lib/sanitizer_common/sanitizer_platform.h
@@ -286,8 +286,8 @@
 #ifndef SANITIZER_CAN_USE_ALLOCATOR64
 #  if (SANITIZER_ANDROID && defined(__aarch64__)) || SANITIZER_FUCHSIA
 #    define SANITIZER_CAN_USE_ALLOCATOR64 1
-#  elif defined(__mips64) || defined(__aarch64__) || defined(__i386__) || \
-      defined(__arm__) || SANITIZER_RISCV64 || defined(__hexagon__)
+#  elif defined(__mips64) || defined(__arm__) || defined(__i386__) || \
+      SANITIZER_RISCV64 || defined(__hexagon__)
 #    define SANITIZER_CAN_USE_ALLOCATOR64 0
 #  else
 #    define SANITIZER_CAN_USE_ALLOCATOR64 (SANITIZER_WORDSIZE == 64)