diff options
| author | Roland McGrath <roland@gnu.org> | 1995-04-05 21:25:11 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 1995-04-05 21:25:11 +0000 |
| commit | f9720d8b686749a1ed99c5e1944d37186093ac6d (patch) | |
| tree | f138e546e9a40ebbea8c7de620887a05adc8019c | |
| parent | 036f13b91f049f564a3a9803c4b01134df39ce29 (diff) | |
Check for errors.
| -rw-r--r-- | boot/syscall.S | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/boot/syscall.S b/boot/syscall.S index ab392c9e..1f6b7307 100644 --- a/boot/syscall.S +++ b/boot/syscall.S @@ -1,5 +1,5 @@ /* Temporary.... - Copyright (C) 1993 Free Software Foundation + Copyright (C) 1993, 1995 Free Software Foundation This file is part of the GNU Hurd. @@ -17,10 +17,7 @@ You should have received a copy of the GNU General Public License along with the GNU Hurd; see the file COPYING. If not, write to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ -/* Written by Michael I. Bushnell. */ - -/* This does not handle errors */ - + .globl _errno .text .globl _syscall .align 4 @@ -28,5 +25,10 @@ _syscall: pop %ecx pop %eax push %ecx - .byte 0x9a, 0, 0, 0, 0, 7, 0 + lcall $7, $0 + jb error + ret +error: + movl %eax,_errno + movl $-1,%eax ret |