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Add strace to aarch64 vfork()

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Justine Tunney 2023-11-05 09:34:49 -08:00
parent 4f100d2aad
commit 20c794a353
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2 changed files with 12 additions and 28 deletions
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13
libc/proc/vfork.S
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@ -91,7 +91,18 @@ vfork:
ldr w0,[x0,#:lo12:__hostos]
tbz x0,3,1f // bit 3 is xnu
b fork // which doesn't support vfork()
1: mov x8,#220 // __NR_clone
1:
#ifdef SYSDEBUG
stp x29,x30,[sp,-16]!
adrp x0,.Llog
add x0,x0,:lo12:.Llog
mov x29,sp
bl __stracef
ldp x29,x30,[sp],16
#endif
mov x8,#220 // __NR_clone
mov x0,#0x4111 // SIGCHLD | CLONE_VM | CLONE_VFORK
mov x1,#0
svc 0