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#include "syscalls.h"
#include <errno.h>
#include "PIC.h"
.text
.type clone,@function
.weak clone
clone:
.type __clone,@function
.global __clone
__clone:
mov $-EINVAL, %eax
movl 4(%esp), %ecx /* have non null thread_funcion */
jecxz .Lclone_error
movl 8(%esp), %ecx /* have non null child_stack pointer */
jecxz .Lclone_error
/* put the parameter on thread stack */
subl $8, %ecx
movl 16(%esp), %eax /* arg */
movl %eax, 4(%ecx)
movl 4(%esp), %eax /* thread_func */
movl %eax, 0(%ecx)
/* the syscall */
pushl %ebx
movl 16(%esp), %ebx /* flags */
movl $__NR_clone, %eax
int $0x80
popl %ebx
testl %eax, %eax
jl .Lclone_error
jne .Lreturn
.Lstart_thread:
xorl %ebp,%ebp
call *%ebx
pushl %eax
call _exit
.Lclone_error:
negl %eax
pushl %eax
#ifdef PIC
pushl %ebx
PIC_INIT
call __errno_location@PLT
popl %ebx
#else
call __errno_location
#endif
popl %ecx
movl %ecx, (%eax)
orl $-1, %eax
.Lreturn:
ret
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