Extempt calculate_gnu_hash_neon from hwasan.

Bug: 227630703 Change-Id: I525c99796c87252050b46faffb3058f7e8b5866c
2022-03-31 22:46:52 +00:00 · 2022-03-31 22:46:52 +00:00 · 6e8f3a76ee
commit 6e8f3a76ee
parent 6bdefa6ca2
1 changed files with 2 additions and 0 deletions
--- a/linker/arch/arm_neon/linker_gnu_hash_neon.cpp
+++ b/linker/arch/arm_neon/linker_gnu_hash_neon.cpp
@ -81,6 +81,8 @@ constexpr uint32_t kStepN7 = kStepN6 * 0x3e0f83e1;
 //      return h;
 //    }
 //
+// This does an within-alignment out-of-bounds read for performance reasons.
+__attribute__((no_sanitize("hwaddress")))
 std::pair<uint32_t, uint32_t> calculate_gnu_hash_neon(const char* name) {

  // The input string may be misaligned by 0-7 bytes (K). This function loads the first aligned