diff options
Diffstat (limited to 'gcc-4.9/libsanitizer/tsan/tsan_rtl_amd64.S')
| -rw-r--r-- | gcc-4.9/libsanitizer/tsan/tsan_rtl_amd64.S | 302 |
1 files changed, 302 insertions, 0 deletions
diff --git a/gcc-4.9/libsanitizer/tsan/tsan_rtl_amd64.S b/gcc-4.9/libsanitizer/tsan/tsan_rtl_amd64.S new file mode 100644 index 000000000..71a2ecda9 --- /dev/null +++ b/gcc-4.9/libsanitizer/tsan/tsan_rtl_amd64.S @@ -0,0 +1,302 @@ +#include "sanitizer_common/sanitizer_asm.h" +.hidden __tsan_trace_switch +.globl __tsan_trace_switch_thunk +__tsan_trace_switch_thunk: + CFI_STARTPROC + # Save scratch registers. + push %rax + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%rax, 0) + push %rcx + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%rcx, 0) + push %rdx + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%rdx, 0) + push %rsi + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%rsi, 0) + push %rdi + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%rdi, 0) + push %r8 + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%r8, 0) + push %r9 + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%r9, 0) + push %r10 + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%r10, 0) + push %r11 + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%r11, 0) + # Align stack frame. + push %rbx # non-scratch + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%rbx, 0) + mov %rsp, %rbx # save current rsp + CFI_DEF_CFA_REGISTER(%rbx) + shr $4, %rsp # clear 4 lsb, align to 16 + shl $4, %rsp + + call __tsan_trace_switch + + # Unalign stack frame back. + mov %rbx, %rsp # restore the original rsp + CFI_DEF_CFA_REGISTER(%rsp) + pop %rbx + CFI_ADJUST_CFA_OFFSET(-8) + # Restore scratch registers. + pop %r11 + CFI_ADJUST_CFA_OFFSET(-8) + pop %r10 + CFI_ADJUST_CFA_OFFSET(-8) + pop %r9 + CFI_ADJUST_CFA_OFFSET(-8) + pop %r8 + CFI_ADJUST_CFA_OFFSET(-8) + pop %rdi + CFI_ADJUST_CFA_OFFSET(-8) + pop %rsi + CFI_ADJUST_CFA_OFFSET(-8) + pop %rdx + CFI_ADJUST_CFA_OFFSET(-8) + pop %rcx + CFI_ADJUST_CFA_OFFSET(-8) + pop %rax + CFI_ADJUST_CFA_OFFSET(-8) + CFI_RESTORE(%rax) + CFI_RESTORE(%rbx) + CFI_RESTORE(%rcx) + CFI_RESTORE(%rdx) + CFI_RESTORE(%rsi) + CFI_RESTORE(%rdi) + CFI_RESTORE(%r8) + CFI_RESTORE(%r9) + CFI_RESTORE(%r10) + CFI_RESTORE(%r11) + ret + CFI_ENDPROC + +.hidden __tsan_report_race +.globl __tsan_report_race_thunk +__tsan_report_race_thunk: + CFI_STARTPROC + # Save scratch registers. + push %rax + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%rax, 0) + push %rcx + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%rcx, 0) + push %rdx + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%rdx, 0) + push %rsi + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%rsi, 0) + push %rdi + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%rdi, 0) + push %r8 + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%r8, 0) + push %r9 + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%r9, 0) + push %r10 + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%r10, 0) + push %r11 + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%r11, 0) + # Align stack frame. + push %rbx # non-scratch + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%rbx, 0) + mov %rsp, %rbx # save current rsp + CFI_DEF_CFA_REGISTER(%rbx) + shr $4, %rsp # clear 4 lsb, align to 16 + shl $4, %rsp + + call __tsan_report_race + + # Unalign stack frame back. + mov %rbx, %rsp # restore the original rsp + CFI_DEF_CFA_REGISTER(%rsp) + pop %rbx + CFI_ADJUST_CFA_OFFSET(-8) + # Restore scratch registers. + pop %r11 + CFI_ADJUST_CFA_OFFSET(-8) + pop %r10 + CFI_ADJUST_CFA_OFFSET(-8) + pop %r9 + CFI_ADJUST_CFA_OFFSET(-8) + pop %r8 + CFI_ADJUST_CFA_OFFSET(-8) + pop %rdi + CFI_ADJUST_CFA_OFFSET(-8) + pop %rsi + CFI_ADJUST_CFA_OFFSET(-8) + pop %rdx + CFI_ADJUST_CFA_OFFSET(-8) + pop %rcx + CFI_ADJUST_CFA_OFFSET(-8) + pop %rax + CFI_ADJUST_CFA_OFFSET(-8) + CFI_RESTORE(%rax) + CFI_RESTORE(%rbx) + CFI_RESTORE(%rcx) + CFI_RESTORE(%rdx) + CFI_RESTORE(%rsi) + CFI_RESTORE(%rdi) + CFI_RESTORE(%r8) + CFI_RESTORE(%r9) + CFI_RESTORE(%r10) + CFI_RESTORE(%r11) + ret + CFI_ENDPROC + +.hidden __tsan_setjmp +.comm _ZN14__interception11real_setjmpE,8,8 +.globl setjmp +.type setjmp, @function +setjmp: + CFI_STARTPROC + // save env parameter + push %rdi + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%rdi, 0) + // obtain %rsp + lea 16(%rsp), %rdi + mov %rdi, %rsi + xor %fs:0x30, %rsi // magic mangling of rsp (see libc setjmp) + rol $0x11, %rsi + // call tsan interceptor + call __tsan_setjmp + // restore env parameter + pop %rdi + CFI_ADJUST_CFA_OFFSET(-8) + CFI_RESTORE(%rdi) + // tail jump to libc setjmp + movl $0, %eax + movq _ZN14__interception11real_setjmpE@GOTPCREL(%rip), %rdx + jmp *(%rdx) + CFI_ENDPROC +.size setjmp, .-setjmp + +.comm _ZN14__interception12real__setjmpE,8,8 +.globl _setjmp +.type _setjmp, @function +_setjmp: + CFI_STARTPROC + // save env parameter + push %rdi + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%rdi, 0) + // obtain %rsp + lea 16(%rsp), %rdi + mov %rdi, %rsi + xor %fs:0x30, %rsi // magic mangling of rsp (see libc setjmp) + rol $0x11, %rsi + // call tsan interceptor + call __tsan_setjmp + // restore env parameter + pop %rdi + CFI_ADJUST_CFA_OFFSET(-8) + CFI_RESTORE(%rdi) + // tail jump to libc setjmp + movl $0, %eax + movq _ZN14__interception12real__setjmpE@GOTPCREL(%rip), %rdx + jmp *(%rdx) + CFI_ENDPROC +.size _setjmp, .-_setjmp + +.comm _ZN14__interception14real_sigsetjmpE,8,8 +.globl sigsetjmp +.type sigsetjmp, @function +sigsetjmp: + CFI_STARTPROC + // save env parameter + push %rdi + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%rdi, 0) + // save savesigs parameter + push %rsi + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%rsi, 0) + // align stack frame + sub $8, %rsp + CFI_ADJUST_CFA_OFFSET(8) + // obtain %rsp + lea 32(%rsp), %rdi + mov %rdi, %rsi + xor %fs:0x30, %rsi // magic mangling of rsp (see libc setjmp) + rol $0x11, %rsi + // call tsan interceptor + call __tsan_setjmp + // unalign stack frame + add $8, %rsp + CFI_ADJUST_CFA_OFFSET(-8) + // restore savesigs parameter + pop %rsi + CFI_ADJUST_CFA_OFFSET(-8) + CFI_RESTORE(%rsi) + // restore env parameter + pop %rdi + CFI_ADJUST_CFA_OFFSET(-8) + CFI_RESTORE(%rdi) + // tail jump to libc sigsetjmp + movl $0, %eax + movq _ZN14__interception14real_sigsetjmpE@GOTPCREL(%rip), %rdx + jmp *(%rdx) + CFI_ENDPROC +.size sigsetjmp, .-sigsetjmp + +.comm _ZN14__interception16real___sigsetjmpE,8,8 +.globl __sigsetjmp +.type __sigsetjmp, @function +__sigsetjmp: + CFI_STARTPROC + // save env parameter + push %rdi + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%rdi, 0) + // save savesigs parameter + push %rsi + CFI_ADJUST_CFA_OFFSET(8) + CFI_REL_OFFSET(%rsi, 0) + // align stack frame + sub $8, %rsp + CFI_ADJUST_CFA_OFFSET(8) + // obtain %rsp + lea 32(%rsp), %rdi + mov %rdi, %rsi + xor %fs:0x30, %rsi // magic mangling of rsp (see libc setjmp) + rol $0x11, %rsi + // call tsan interceptor + call __tsan_setjmp + // unalign stack frame + add $8, %rsp + CFI_ADJUST_CFA_OFFSET(-8) + // restore savesigs parameter + pop %rsi + CFI_ADJUST_CFA_OFFSET(-8) + CFI_RESTORE(%rsi) + // restore env parameter + pop %rdi + CFI_ADJUST_CFA_OFFSET(-8) + CFI_RESTORE(%rdi) + // tail jump to libc sigsetjmp + movl $0, %eax + movq _ZN14__interception16real___sigsetjmpE@GOTPCREL(%rip), %rdx + jmp *(%rdx) + CFI_ENDPROC +.size __sigsetjmp, .-__sigsetjmp + +#ifdef __linux__ +/* We do not need executable stack. */ +.section .note.GNU-stack,"",@progbits +#endif |