From: Roland McGrath <roland@gnu.org>
Date: Mon, 17 May 1993 02:08:01 +0000 (+0000)
Subject: Formerly unix/bsd/sequent/i386/__sigvec.S.~3~
X-Git-Tag: glibc-2.16-ports-before-merge~4275
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=671631d4b1a8be06ff1596194be2d09faf114c23;p=thirdparty%2Fglibc.git

Formerly unix/bsd/sequent/i386/__sigvec.S.~3~
---

diff --git a/sysdeps/unix/bsd/sequent/i386/sigvec.S b/sysdeps/unix/bsd/sequent/i386/sigvec.S
index 53aade43930..9a9a13e0797 100644
--- a/sysdeps/unix/bsd/sequent/i386/sigvec.S
+++ b/sysdeps/unix/bsd/sequent/i386/sigvec.S
@@ -32,14 +32,12 @@ trampoline:
 
 .globl syscall_error
 ENTRY (__sigvec)
-	/* Put the address of the trampoline in a scratch register.  */
-	mov $trampoline, scratch
-	/* Now exchange this register with the fourth word on the stack,
-	   where the fourth argument to the system call would go.  */
-	xchg 16(%esp), scratch
+	pushl $trampoline	/* Push fourth arg: trampoline address.  */
+	pushl 16(%esp)		/* Push third arg: our third arg.  */
+	pushl 16(%esp)		/* Push second arg: our second arg.  */
+	pushl 16(%esp)		/* Push first arg: our first arg.  */
 	ARGS_4	 		/* Point the syscall at the arguments.  */
 	DO_CALL (sigvec, 4)	/* Do the system call.  */
-	/* Exchange again, restoring the stack word.  */
-	xchg 16(%esp), scratch
+	addl %esp, $16		/* Pop those four args.  */
 	jb syscall_error	/* Check for error.  */
 	ret