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; $Id: setjmp.asm $
;; @file
; IPRT - No-CRT setjmp & longjmp - AMD64 & X86.
;
;
; Copyright (C) 2006-2023 Oracle and/or its affiliates.
;
; This file is part of VirtualBox base platform packages, as
; available from https://www.virtualbox.org.
;
; This program is free software; you can redistribute it and/or
; modify it under the terms of the GNU General Public License
; as published by the Free Software Foundation, in version 3 of the
; License.
;
; This program is distributed in the hope that it will be useful, but
; WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
; General Public License for more details.
;
; You should have received a copy of the GNU General Public License
; along with this program; if not, see <https://www.gnu.org/licenses>.
;
; The contents of this file may alternatively be used under the terms
; of the Common Development and Distribution License Version 1.0
; (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
; in the VirtualBox distribution, in which case the provisions of the
; CDDL are applicable instead of those of the GPL.
;
; You may elect to license modified versions of this file under the
; terms and conditions of either the GPL or the CDDL or both.
;
; SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
;
%include "iprt/asmdefs.mac"
BEGINCODE
;;
; @param x86:[esp+4] msc:rcx gcc:rdi The jump buffer pointer.
RT_NOCRT_BEGINPROC setjmp
%ifdef RT_ARCH_AMD64
%ifndef ASM_CALL64_MSC
mov rcx, rdi
%endif
mov rax, [rsp]
mov [rcx + 0h*8], rax ; 0 - rip
lea rdx, [rsp + 8]
mov [rcx + 1h*8], rdx ; 1 - rsp
mov [rcx + 2h*8], rbp
mov [rcx + 3h*8], r15
mov [rcx + 4h*8], r14
mov [rcx + 5h*8], r13
mov [rcx + 6h*8], r12
mov [rcx + 7h*8], rbx
%ifdef ASM_CALL64_MSC
mov [rcx + 8h*8], rsi
mov [rcx + 9h*8], rdi
movdqa [rcx + 0ah*8], xmm6
movdqa [rcx + 0ch*8], xmm7
movdqa [rcx + 0eh*8], xmm8
movdqa [rcx + 10h*8], xmm9
movdqa [rcx + 12h*8], xmm10
movdqa [rcx + 14h*8], xmm11
movdqa [rcx + 16h*8], xmm12
movdqa [rcx + 18h*8], xmm13
movdqa [rcx + 1ah*8], xmm14
movdqa [rcx + 1ch*8], xmm15
%ifndef RT_OS_WINDOWS
%error "Fix setjmp.h"
%endif
%endif
%else
mov edx, [esp + 4h]
mov eax, [esp]
mov [edx + 0h*4], eax ; eip
lea ecx, [esp + 4h]
mov [edx + 1h*4], ecx ; esp
mov [edx + 2h*4], ebp
mov [edx + 3h*4], ebx
mov [edx + 4h*4], edi
mov [edx + 5h*4], esi
%endif
xor eax, eax
ret
ENDPROC RT_NOCRT(setjmp)
;;
; @param x86:[esp+4] msc:rcx gcc:rdi The jump buffer pointer.
; @param x86:[esp+8] msc:rdx gcc:rsi Return value.
RT_NOCRT_BEGINPROC longjmp
%ifdef RT_ARCH_AMD64
%ifdef ASM_CALL64_MSC
mov eax, edx ; ret
%else
mov rcx, rdi ; jmp_buf
mov eax, esi ; ret
%endif
mov rbp, [rcx + 2h*8]
mov r15, [rcx + 3h*8]
mov r14, [rcx + 4h*8]
mov r13, [rcx + 5h*8]
mov r12, [rcx + 6h*8]
mov rbx, [rcx + 7h*8]
%ifdef ASM_CALL64_MSC
mov rsi, [rcx + 8h*8]
mov rdi, [rcx + 9h*8]
movdqa xmm6, [rcx + 0ah*8]
movdqa xmm7, [rcx + 0ch*8]
movdqa xmm8, [rcx + 0eh*8]
movdqa xmm9, [rcx + 10h*8]
movdqa xmm10, [rcx + 12h*8]
movdqa xmm11, [rcx + 14h*8]
movdqa xmm12, [rcx + 16h*8]
movdqa xmm13, [rcx + 18h*8]
movdqa xmm14, [rcx + 1ah*8]
movdqa xmm15, [rcx + 1ch*8]
%ifndef RT_OS_WINDOWS
%error "Fix setjmp.h"
%endif
%endif
test eax, eax
jnz .fine
inc al
.fine:
mov rsp, [rcx + 1h*8]
jmp qword [rcx + 0h*8]
%else
mov edx, [esp + 4h] ; jmp_buf
mov eax, [esp + 8h] ; ret
mov esi, [edx + 5h*4]
mov edi, [edx + 4h*4]
mov ebx, [edx + 3h*4]
mov ebp, [edx + 2h*4]
test eax, eax
jnz .fine
inc al
.fine:
mov esp, [edx + 1h*4]
jmp dword [edx+ 0h*4]
%endif
ENDPROC RT_NOCRT(longjmp)
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