diff options
Diffstat (limited to 'libc/sysdeps/linux/m68k/vfork.S')
| -rw-r--r-- | libc/sysdeps/linux/m68k/vfork.S | 30 |
1 files changed, 12 insertions, 18 deletions
diff --git a/libc/sysdeps/linux/m68k/vfork.S b/libc/sysdeps/linux/m68k/vfork.S index bde9d5a3a..eb1639e37 100644 --- a/libc/sysdeps/linux/m68k/vfork.S +++ b/libc/sysdeps/linux/m68k/vfork.S @@ -10,8 +10,6 @@ #define __NR_vfork __NR_fork /* uClinux-2.0 only has fork which is vfork */ #endif -#define IMM # - .text .align 2 .globl __vfork @@ -19,26 +17,22 @@ .type __vfork,@function __vfork: - movl %sp@+, %a1 /* save the return address for later */ - movl IMM __NR_vfork,%d0 + /* Pop the return PC value into A0. */ + movel %sp@+, %a0 + + /* Stuff the syscall number in D0 and trap into the kernel. */ + movel #SYS_ify (vfork), %d0 trap #0 - movl %a1, -(%sp) - cmpil #-4096,%d0 - blss 1f + tstl %d0 + jmi .Lerror /* Branch forward if it failed. */ - neg.l %d0 -#ifndef __PIC__ /* needs handling as the other archs */ - movl errno, %a0 -#else - movl errno@GOT(%a5), %a0 -#endif - movl %d0, %a0@ - move.l #-1, %d0 + /* Jump to the return PC. */ + jmp %a0@ -1: - move.l %d0, %a0 - rts +.Lerror: + /* Push back the return PC. */ + movel %a0,%sp@- .size __vfork,.-__vfork weak_alias(__vfork,vfork) |