mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-07-05 10:48:29 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Introduce FreeBSD ARM64 support

Browse source 
It's 100% passing test fleet. Solid as a rock.
This commit is contained in:
Justine Tunney 2023-12-29 20:11:23 -08:00
parent 43fe5956ad
commit 83107f78ed
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
455 changed files with 778 additions and 551 deletions
Download patch file Download diff file Expand all files Collapse all files

6
libc/proc/fork-sysv.c
View file

@ -60,7 +60,11 @@ int sys_fork(void) {
} else if (__syslib) {
return _sysret(__syslib->__fork());
} else {
return enosys();
int ax;
axdx_t ad;
ad = __sys_fork();
ax = ad.ax;
return ax;
}
#else

17
libc/proc/vfork.S
View file

@ -87,9 +87,9 @@ vfork:
#elif defined(__aarch64__)
adrp x0,__hostos
ldr w0,[x0,#:lo12:__hostos]
tbz x0,3,1f // bit 3 is xnu
adrp x8,__hostos
ldr w8,[x8,#:lo12:__hostos]
tbz x8,3,1f // bit 3 is xnu
b fork // which doesn't support vfork()
1:
@ -102,10 +102,19 @@ vfork:
ldp x29,x30,[sp],16
#endif
mov x8,#220 // __NR_clone
tbnz w8,5,1f // bit 5 is freebsd
mov x8,#220 // clone (linux)
mov x0,#0x4111 // SIGCHLD | CLONE_VM | CLONE_VFORK
mov x1,#0
svc 0
b 2f
1: mov x8,#66 // vfork (freebsd)
svc 0 // call kernel
bcc 2f // jump if not carry
neg x0,x0 // linux style errno
2:
// if (!rc) {
// __get_tls()->tib_flags |= TIB_FLAG_VFORKED;