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sim: add windows64 setjmp/longjmp support

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Signed-off-by: chenxiaoyi <chenxiaoyi@xiaomi.com>
This commit is contained in:
chenxiaoyi 2024-07-09 09:57:24 +08:00 committed by Xiang Xiao
parent 835aac23b7
commit a23ed77782
2 changed files with 90 additions and 1 deletions
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4
libs/libc/machine/sim/CMakeLists.txt
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@ -40,9 +40,13 @@ if(CONFIG_HOST_X86_64)
list(APPEND SRCS arch_elf64.c)
endif()
if(CONFIG_ARCH_SETJMP_H)
if(WIN32)
list(APPEND SRCS arch_setjmp_x86_64.asm)
else()
list(APPEND SRCS arch_setjmp_x86_64.S)
endif()
endif()
endif()
elseif(CONFIG_HOST_X86)
if(CONFIG_LIBC_ARCH_ELF)

85
libs/libc/machine/sim/arch_setjmp_x86_64.asm Normal file
View File

@ -0,0 +1,85 @@
;***************************************************************************
; libs/libc/machine/sim/arch_setjmp_x86_64.asm
;
; Licensed to the Apache Software Foundation (ASF) under one or more
; contributor license agreements. See the NOTICE file distributed with
; this work for additional information regarding copyright ownership. The
; ASF licenses this file to you under the Apache License, Version 2.0 (the
; "License"); you may not use this file except in compliance with the
; License. You may obtain a copy of the License at
;
; http://www.apache.org/licenses/LICENSE-2.0
;
; Unless required by applicable law or agreed to in writing, software
; distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
; WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
; License for the specific language governing permissions and limitations
; under the License.
;
;***************************************************************************
;***************************************************************************
; Public Functions
;***************************************************************************
.code
public setjmp
public longjmp
setjmp:
; Get the return address, adjusting the stack pointer
pop rsi
; Set up the return value
xor rax, rax
; Save 1: rbx
mov [rcx], rbx
; Save 2: Value of the rsp *after* returning
mov [rcx+8], rsp
; Fix up the return stack
push rsi
; Save registers
; Storage order: %rbx, %rsp, %rbp, %r12, %r13, %r14, %r15, %rip
mov [rcx+10h], rbp
mov [rcx+18h], r12
mov [rcx+20h], r13
mov [rcx+28h], r14
mov [rcx+30h], r15
mov [rcx+38h], rsi
ret
longjmp:
; Setup return value
mov rax, rdx
; Restore registers
mov rbx, [rcx]
mov rsp, [rcx+8]
mov rbp, [rcx+10h]
mov r12, [rcx+18h]
mov r13, [rcx+20h]
mov r14, [rcx+28h]
mov r15, [rcx+30h]
; Jump to the saved return address (rsi)
jmp qword ptr [rcx+38h]
end