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Katayama Hirofumi MZ 2025-03-30 06:40:22 +09:00
parent c71052bade
commit a8cadbab8d
1 changed files with 6 additions and 6 deletions
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12
sdk/lib/crt/setjmp/amd64/setjmp.s
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@ -63,7 +63,7 @@ FUNC _setjmp
mov [rcx + JUMP_BUFFER_R13], r13 /* Store r13 */
mov [rcx + JUMP_BUFFER_R14], r14 /* Store r14 */
mov [rcx + JUMP_BUFFER_R15], r15 /* Store r15 */
lea rax, [rip + LABEL1] /* Get the return address (LABEL1 below) */
lea rax, [rip + JKRET] /* Get the return address (see JKRET below) */
mov [rcx + JUMP_BUFFER_Rip], rax /* Store rip (return address) */
mov rax, [rsp + 8] /* Get frame pointer */
mov [rcx + JUMP_BUFFER_Frame], rax /* Store frame pointer */
@ -80,7 +80,7 @@ FUNC _setjmp
mov rsp, rbp /* Restore original rsp */
pop rbp /* Restore original rbp */
xor eax, eax /* Return 0 on first (_setjmp) return */
LABEL1:
JKRET:
ret
ENDFUNC
@ -109,7 +109,7 @@ FUNC _setjmpex
mov [rcx + JUMP_BUFFER_R13], r13 /* Store r13 */
mov [rcx + JUMP_BUFFER_R14], r14 /* Store r14 */
mov [rcx + JUMP_BUFFER_R15], r15 /* Store r15 */
lea rax, [rip + LABEL2] /* Get the return address (LABEL2 below) */
lea rax, [rip + JKXRET] /* Get the return address (see JKXRET below) */
mov [rcx + JUMP_BUFFER_Rip], rax /* Store rip (return address) */
mov [rcx + JUMP_BUFFER_Frame], rdx /* Store frame */
movdqu [rcx + JUMP_BUFFER_Xmm6], xmm6 /* Store xmm6 */
@ -125,7 +125,7 @@ FUNC _setjmpex
mov rsp, rbp /* Restore original rsp */
pop rbp /* Restore original rbp */
xor eax, eax /* Return 0 on first (_setjmpex) return */
LABEL2:
JKXRET:
ret
ENDFUNC
@ -166,9 +166,9 @@ FUNC longjmp
movdqu xmm15, [rcx + JUMP_BUFFER_Xmm15] /* Restore xmm15 */
mov rax, rdx /* Move val into rax (return value) */
test rax, rax /* Check if val is 0 */
jz LABEL3 /* If val is 0, jump to LABEL3 */
jz LJRET /* If val is 0, jump to LJRET */
jmp qword ptr [rcx + JUMP_BUFFER_Rip] /* Jump to the stored return address (rip) */
LABEL3:
LJRET:
mov rax, 1 /* If val was 0, return 1 on second (longjmp) return */
jmp qword ptr [rcx + JUMP_BUFFER_Rip] /* Jump to the stored return address (rip) */
ENDFUNC