diff --git a/src/runtime/libfuzzer_arm64.s b/src/runtime/libfuzzer_arm64.s index 9da94be03e..37b35173c3 100644 --- a/src/runtime/libfuzzer_arm64.s +++ b/src/runtime/libfuzzer_arm64.s @@ -43,8 +43,8 @@ TEXT runtime·libfuzzerCallTraceIntCmp(SB), NOSPLIT, $8-32 MOVD R12, RSP call: // Load address of the ret sled into the default register for the return - // address (offset of four instructions, which means 16 bytes). - ADR $16, R30 + // address. + ADR ret_sled, R30 // Clear the lowest 2 bits of fakePC. All ARM64 instructions are four // bytes long, so we cannot get better return address granularity than // multiples of 4. @@ -60,8 +60,9 @@ call: // has the same byte length of 4 * 128 = 512 as the x86_64 sled, but // coarser granularity. #define RET_SLED \ - JMP end_of_function; + JMP end_of_function; +ret_sled: REPEAT_128(RET_SLED); end_of_function: