mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-08-09 19:30:29 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Fix deterministic startup stack setup, especially for bare metal

Browse source
This commit is contained in:
tkchia 2022-08-09 09:13:07 +00:00
parent d4744048ba
commit e24f7afd10
1 changed files with 5 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

7
libc/runtime/cosmo.S
View file

@ -99,6 +99,8 @@ cosmo: push %rbp
.init.start 304,_init_stack .init.start 304,_init_stack
testb IsWindows() testb IsWindows()
jnz 9f jnz 9f
testb IsMetal()
jnz 9f
push %rdi push %rdi
push %rsi push %rsi
// allocate stack // allocate stack
@ -120,8 +122,9 @@ cosmo: push %rbp
leave leave
pop %rcx pop %rcx
lea (%rax,%r8),%rsp lea (%rax,%r8),%rsp
sub $ape_stack_align,%rsp # openbsd:stackbound mov $ape_stack_align,%eax # openbsd:stackbound
mov %rbp,(%rsp) neg %rax
and %rax,%rsp
push %rcx push %rcx
push %rbp push %rbp
mov %rsp,%rbp mov %rsp,%rbp