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commit a23ed77782302898787441605c46ecb6810382ac Author: chenxiaoyi <[email protected]> AuthorDate: Tue Jul 9 09:57:24 2024 +0800 sim: add windows64 setjmp/longjmp support Signed-off-by: chenxiaoyi <[email protected]> --- libs/libc/machine/sim/CMakeLists.txt | 6 +- libs/libc/machine/sim/arch_setjmp_x86_64.asm | 85 ++++++++++++++++++++++++++++ 2 files changed, 90 insertions(+), 1 deletion(-) diff --git a/libs/libc/machine/sim/CMakeLists.txt b/libs/libc/machine/sim/CMakeLists.txt index 22ccff0bdb..4cdcf8cfda 100644 --- a/libs/libc/machine/sim/CMakeLists.txt +++ b/libs/libc/machine/sim/CMakeLists.txt @@ -40,7 +40,11 @@ if(CONFIG_HOST_X86_64) list(APPEND SRCS arch_elf64.c) endif() if(CONFIG_ARCH_SETJMP_H) - list(APPEND SRCS arch_setjmp_x86_64.S) + if(WIN32) + list(APPEND SRCS arch_setjmp_x86_64.asm) + else() + list(APPEND SRCS arch_setjmp_x86_64.S) + endif() endif() endif() diff --git a/libs/libc/machine/sim/arch_setjmp_x86_64.asm b/libs/libc/machine/sim/arch_setjmp_x86_64.asm new file mode 100644 index 0000000000..2ef7f529fd --- /dev/null +++ b/libs/libc/machine/sim/arch_setjmp_x86_64.asm @@ -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 +
