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update from main archive 961113

This commit is contained in:
Ulrich Drepper 1996-11-14 02:04:01 +00:00
parent dd4b8913cd
commit 6acf09f471
2 changed files with 4 additions and 6 deletions
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5
sysdeps/unix/sysv/linux/m68k/syscall.S
View File

@ -19,7 +19,7 @@
#include <sysdep.h>
/* Please consult the file sysdeps/unix/sysv/linux/m68k/sysdep.h for
more information about the value -4096 used below.*/
more information about the value -4095 used below.*/
.text
ENTRY (syscall)
@ -27,8 +27,7 @@ ENTRY (syscall)
_DOARGS_5 (24) /* Frob arguments. */
trap &0 /* Do the system call. */
UNDOARGS_5 /* Unfrob arguments. */
moveq.l &-4096, %d1
cmp.l %d1, %d0 /* Check %d0 for error. */
cmp.l &-4095, %d0 /* Check %d0 for error. */
jcc syscall_error /* Jump to error handler if negative. */
rts /* Return to caller. */
PSEUDO_END (syscall)

5
sysdeps/unix/sysv/linux/m68k/sysdep.h
View File

@ -75,13 +75,12 @@ Cambridge, MA 02139, USA. */
a large offset. Therefore we must not anymore test for < 0, but test
for a real error by making sure the value in %d0 is a real error
number. Linus said he will make sure the no syscall returns a value
in -1 .. -4095 as a valid result so we can savely test with -4096. */
in -1 .. -4095 as a valid result so we can savely test with -4095. */
#define PSEUDO(name, syscall_name, args) \
.text; \
ENTRY (name) \
DO_CALL (&SYS_ify (syscall_name), args); \
moveq.l &-4096, %d1; \
cmp.l %d1, %d0; \
cmp.l &-4095, %d0; \
jcc syscall_error
#undef PSEUDO_END