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authorAndreas Schwab <schwab@suse.de>2002-12-27 22:15:56 +0000
committerAndreas Schwab <schwab@suse.de>2002-12-27 22:15:56 +0000
commit4f172c25f1c39e86b433075d36f3e6c19e06f136 (patch)
tree9d325e034d5c7125028d6da3fceae77fb1caf6df /sysdeps
parent9f2567656cc8feb171bf241c06f378d57dc1cd1f (diff)
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*** empty log message ***
2002-12-27 Andreas Schwab <schwab@suse.de> * sysdeps/unix/sysv/linux/m68k/socket.S: Add cancellation support.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/unix/sysv/linux/m68k/socket.S42
1 files changed, 41 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/m68k/socket.S b/sysdeps/unix/sysv/linux/m68k/socket.S
index 3592d2a580..1d10f33e17 100644
--- a/sysdeps/unix/sysv/linux/m68k/socket.S
+++ b/sysdeps/unix/sysv/linux/m68k/socket.S
@@ -16,7 +16,7 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
-#include <sysdep.h>
+#include <sysdep-cancel.h>
#include <socketcall.h>
#define P(a, b) P2(a, b)
@@ -41,6 +41,10 @@
.globl __socket
ENTRY (__socket)
+#if defined NEED_CANCELLATION && defined CENABLE
+ SINGLE_THREAD_P
+ jne 1f
+#endif
/* Save registers. */
move.l %d2, %a0
@@ -64,6 +68,42 @@ ENTRY (__socket)
/* Successful; return the syscall's value. */
rts
+
+#if defined NEED_CANCELLATION && defined CENABLE
+1: /* Enable asynchronous cancellation. */
+ CENABLE
+
+ /* Save registers. */
+ move.l %d2, -(%sp)
+ move.l %d0, -(%sp)
+
+ move.l #SYS_ify (socketcall), %d0 /* System call number in %d0. */
+
+ /* Use ## so `socket' is a separate token that might be #define'd. */
+ move.l #P (SOCKOP_,socket), %d1 /* Subcode is first arg to syscall. */
+ lea 4+8(%sp), %a1 /* Address of args is 2nd arg. */
+ move.l %a1, %d2
+
+ /* Do the system call trap. */
+ trap #0
+
+ /* Restore cancellation. */
+ move.l %d0, %d2
+ CDISABLE
+ addq.l #4, %sp
+ move.l %d2, %d0
+
+ /* Restore registers. */
+ move.l (%sp)+, %d2
+
+ /* %d0 is < 0 if there was an error. */
+ tst.l %d0
+ jmi SYSCALL_ERROR_LABEL
+
+ /* Successful; return the syscall's value. */
+ rts
+#endif
+
PSEUDO_END (__socket)
#ifndef NO_WEAK_ALIAS