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Make stack sp aligned

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princewen 2019-12-09 19:08:10 +08:00
parent c79e3e8869
commit 58651e99e8
1 changed files with 2 additions and 2 deletions
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4
coctx.cpp
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@ -108,8 +108,8 @@ int coctx_make(coctx_t* ctx, coctx_pfn_t pfn, const void* s, const void* s1) {
} }
#elif defined(__x86_64__) #elif defined(__x86_64__)
int coctx_make(coctx_t* ctx, coctx_pfn_t pfn, const void* s, const void* s1) { int coctx_make(coctx_t* ctx, coctx_pfn_t pfn, const void* s, const void* s1) {
char* sp = ctx->ss_sp + ctx->ss_size; char* sp = ctx->ss_sp + ctx->ss_size - sizeof(void*);
sp = (char*)((unsigned long)sp & -16LL) - sizeof(void*); sp = (char*)((unsigned long)sp & -16LL);
memset(ctx->regs, 0, sizeof(ctx->regs)); memset(ctx->regs, 0, sizeof(ctx->regs));
void** ret_addr = (void**)(sp); void** ret_addr = (void**)(sp);