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/*
Copyright 2002, 2015 Yoshinori Sato <ysato@users.sourceforge.jp>
*/
#include <sys/syscall.h>
#ifdef __H8300S__
.h8300s
#else
.h8300h
#endif
.text
.align 2
.globl __vfork
.hidden __vfork
.type __vfork,@function
__vfork:
#ifdef __NR_vfork
mov.l @sp+, er1
sub.l er0,er0
mov.b #__NR_vfork,r0l
trapa #0
mov.l #-4096, er2
cmp.l er0,er2
bcs fix_errno
jmp @er1 /* don't return, just jmp directly */
fix_errno:
neg.l er0
# if !defined(__PIC__)
mov.l er0,@_errno
# else
mov.l @(_errno@GOTOFF,er5),er2
mov.l er0,@er2
# endif
sub.l er0,er0
dec.l #1,er0
jmp @er1 /* don't return, just jmp directly */
#else
mov.l @sp+,er2 /* er2 = return address */
mov.l #vfork_args,er1
sub.l er0,er0
mov.b #__NR_clone,r0l
trapa #0
mov.l #-4096,er1
cmp.l er0,er1
bcc done
neg.l er0
# if !defined(__PIC__)
mov.l er0,@errno
# else
mov.l @(errno@GOTOFF,er5),er1
mov.l er0,@er1
# endif
sub.l er0,er0
dec.l #1,er0
done:
jmp @er2
vfork_args:
.long 0x00004111 /* CLONE_VFORK | CLONE_VM | SIGCHLD */
.long 0
.long 0
.long 0
.long 0
#endif
weak_alias(__vfork,vfork)
libc_hidden_def(vfork)
.end
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