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am 3fcc90c6: am c1c3f7d4: Merge "Remove as many hard-coded constants from the MIPS vfork.S as possible."

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* commit '3fcc90c6c0ed602aeaa51b592e7d8effdae74cc8':
  Remove as many hard-coded constants from the MIPS vfork.S as possible.
This commit is contained in:
Elliott Hughes 2014-01-03 22:45:25 +00:00 committed by Android Git Automerger
commit dd18a8dfd0
1 changed files with 16 additions and 8 deletions
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24
libc/arch-mips/bionic/vfork.S
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@ -27,11 +27,14 @@
*/
#include <asm/unistd.h>
#include <linux/sched.h>
// TODO: mips' uapi signal.h is missing #ifndef __ASSEMBLY__.
// #include <asm/signal.h>
#define SIGCHLD 18
.text
/* int vfork() implemented using clone() */
.type vfork, @function
.global vfork
.align 4
@ -40,17 +43,22 @@ vfork:
.set noreorder
.cpload $t9
li $a0, 0x4112 /* CLONE_VM | CLONE_VFORK | SIGCHLD */
move $a1, $sp
li $a0, (CLONE_VM | CLONE_VFORK | SIGCHLD)
li $a1, 0
li $a2, 0
li $a3, 0
subu $sp, 8
sw $0, 16($sp)
li $v0, __NR_clone
syscall
bnez $a3,1f
nop
addu $sp, 8
bnez $a3, 1f
move $a0, $v0
j $ra
nop
1:
la $t9,__set_errno
la $t9, __set_errno
j $t9
move $a0,$v0
nop
.end vfork