diff options
Diffstat (limited to 'lib/tsan/rtl/tsan_rtl_aarch64.S')
| -rw-r--r-- | lib/tsan/rtl/tsan_rtl_aarch64.S | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/lib/tsan/rtl/tsan_rtl_aarch64.S b/lib/tsan/rtl/tsan_rtl_aarch64.S new file mode 100644 index 000000000000..9cea3cf02800 --- /dev/null +++ b/lib/tsan/rtl/tsan_rtl_aarch64.S @@ -0,0 +1,206 @@ +#include "sanitizer_common/sanitizer_asm.h" +.section .text + +.hidden __tsan_setjmp +.comm _ZN14__interception11real_setjmpE,8,8 +.type setjmp, @function +setjmp: + CFI_STARTPROC + + // save env parameters for function call + stp x29, x30, [sp, -32]! + CFI_DEF_CFA_OFFSET (32) + CFI_OFFSET (29, -32) + CFI_OFFSET (30, -24) + + // Adjust the SP for previous frame + add x29, sp, 0 + CFI_DEF_CFA_REGISTER (29) + + // Save jmp_buf + str x19, [sp, 16] + CFI_OFFSET (19, -16) + mov x19, x0 + + // SP pointer mangling (see glibc setjmp) + adrp x2, :got:__pointer_chk_guard + ldr x2, [x2, #:got_lo12:__pointer_chk_guard] + add x0, x29, 32 + ldr x2, [x2] + eor x1, x2, x0 + + // call tsan interceptor + bl __tsan_setjmp + + // restore env parameter + mov x0, x19 + ldr x19, [sp, 16] + ldp x29, x30, [sp], 32 + CFI_RESTORE (30) + CFI_RESTORE (19) + CFI_DEF_CFA (31, 0) + + // tail jump to libc setjmp + adrp x1, :got:_ZN14__interception11real_setjmpE + ldr x1, [x1, #:got_lo12:_ZN14__interception11real_setjmpE] + ldr x1, [x1] + br x1 + + CFI_ENDPROC +.size setjmp, .-setjmp + +.comm _ZN14__interception12real__setjmpE,8,8 +.globl _setjmp +.type _setjmp, @function +_setjmp: + CFI_STARTPROC + + // save env parameters for function call + stp x29, x30, [sp, -32]! + CFI_DEF_CFA_OFFSET (32) + CFI_OFFSET (29, -32) + CFI_OFFSET (30, -24) + + // Adjust the SP for previous frame + add x29, sp, 0 + CFI_DEF_CFA_REGISTER (29) + + // Save jmp_buf + str x19, [sp, 16] + CFI_OFFSET (19, -16) + mov x19, x0 + + // SP pointer mangling (see glibc setjmp) + adrp x2, :got:__pointer_chk_guard + ldr x2, [x2, #:got_lo12:__pointer_chk_guard] + add x0, x29, 32 + ldr x2, [x2] + eor x1, x2, x0 + + // call tsan interceptor + bl __tsan_setjmp + + // Restore jmp_buf parameter + mov x0, x19 + ldr x19, [sp, 16] + ldp x29, x30, [sp], 32 + CFI_RESTORE (30) + CFI_RESTORE (19) + CFI_DEF_CFA (31, 0) + + // tail jump to libc setjmp + adrp x1, :got:_ZN14__interception12real__setjmpE + ldr x1, [x1, #:got_lo12:_ZN14__interception12real__setjmpE] + ldr x1, [x1] + br x1 + + CFI_ENDPROC +.size _setjmp, .-_setjmp + +.comm _ZN14__interception14real_sigsetjmpE,8,8 +.globl sigsetjmp +.type sigsetjmp, @function +sigsetjmp: + CFI_STARTPROC + + // save env parameters for function call + stp x29, x30, [sp, -32]! + CFI_DEF_CFA_OFFSET (32) + CFI_OFFSET (29, -32) + CFI_OFFSET (30, -24) + + // Adjust the SP for previous frame + add x29, sp, 0 + CFI_DEF_CFA_REGISTER (29) + + // Save jmp_buf and savesigs + stp x19, x20, [sp, 16] + CFI_OFFSET (19, -16) + CFI_OFFSET (20, -8) + mov w20, w1 + mov x19, x0 + + // SP pointer mangling (see glibc setjmp) + adrp x2, :got:__pointer_chk_guard + ldr x2, [x2, #:got_lo12:__pointer_chk_guard] + add x0, x29, 32 + ldr x2, [x2] + eor x1, x2, x0 + + // call tsan interceptor + bl __tsan_setjmp + + // restore env parameter + mov w1, w20 + mov x0, x19 + ldp x19, x20, [sp, 16] + ldp x29, x30, [sp], 32 + CFI_RESTORE (30) + CFI_RESTORE (29) + CFI_RESTORE (19) + CFI_RESTORE (20) + CFI_DEF_CFA (31, 0) + + // tail jump to libc sigsetjmp + adrp x2, :got:_ZN14__interception14real_sigsetjmpE + ldr x2, [x2, #:got_lo12:_ZN14__interception14real_sigsetjmpE] + ldr x2, [x2] + br x2 + CFI_ENDPROC +.size sigsetjmp, .-sigsetjmp + +.comm _ZN14__interception16real___sigsetjmpE,8,8 +.globl __sigsetjmp +.type __sigsetjmp, @function +__sigsetjmp: + CFI_STARTPROC + + // save env parameters for function call + stp x29, x30, [sp, -32]! + CFI_DEF_CFA_OFFSET (32) + CFI_OFFSET (29, -32) + CFI_OFFSET (30, -24) + + // Adjust the SP for previous frame + add x29, sp, 0 + CFI_DEF_CFA_REGISTER (29) + + // Save jmp_buf and savesigs + stp x19, x20, [sp, 16] + CFI_OFFSET (19, -16) + CFI_OFFSET (20, -8) + mov w20, w1 + mov x19, x0 + + // SP pointer mangling (see glibc setjmp) + adrp x2, :got:__pointer_chk_guard + ldr x2, [x2, #:got_lo12:__pointer_chk_guard] + add x0, x29, 32 + ldr x2, [x2] + eor x1, x2, x0 + + // call tsan interceptor + bl __tsan_setjmp + + mov w1, w20 + mov x0, x19 + ldp x19, x20, [sp, 16] + ldp x29, x30, [sp], 32 + CFI_RESTORE (30) + CFI_RESTORE (29) + CFI_RESTORE (19) + CFI_RESTORE (20) + CFI_DEF_CFA (31, 0) + + // tail jump to libc __sigsetjmp + adrp x2, :got:_ZN14__interception16real___sigsetjmpE + ldr x2, [x2, #:got_lo12:_ZN14__interception16real___sigsetjmpE] + ldr x2, [x2] + br x2 + CFI_ENDPROC +.size __sigsetjmp, .-__sigsetjmp + +#if defined(__linux__) +/* We do not need executable stack. */ +.section .note.GNU-stack,"",@progbits +#endif |