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-rw-r--r--sysdeps/alpha/setjmp.S68
1 files changed, 58 insertions, 10 deletions
diff --git a/sysdeps/alpha/setjmp.S b/sysdeps/alpha/setjmp.S
index 4b2e147b15..48fe33b3ec 100644
--- a/sysdeps/alpha/setjmp.S
+++ b/sysdeps/alpha/setjmp.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992, 1994, 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1992, 1994, 1996, 1997 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -16,13 +16,21 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+#define __ASSEMBLY__
+
 #include <sysdep.h>
+#include <bits/setjmp.h>
+
+       .ent __sigsetjmp
+       .global __sigsetjmp
+__sigsetjmp:
+       ldgp    gp, 0(pv)
 
-/* The function __sigsetjmp_aux saves all the registers, but it can't
-   reliably access the stack or frame pointers, so we pass them in as
-   extra arguments.  */
-ENTRY (__sigsetjmp)
-	ldgp	$29, 0($27)
+$sigsetjmp_local:
+       subq    sp, 16, sp
+       .frame  sp, 16, ra, 0
+       stq     ra, 0(sp)
+       .mask   0x04000000, -16
 #ifdef PROF
 	.set noat
 	lda	AT, _mcount
@@ -31,8 +39,48 @@ ENTRY (__sigsetjmp)
 #endif
 	.prologue 1
 
-	bis	$30, $30, $18		/* Pass SP as 3rd arg.  */
-	bis	$15, $15, $19		/* Pass FP as 4th arg.  */
-	jmp	$31, __sigsetjmp_aux	/* Call __sigsetjmp_aux.  */
+	stq	s0, JB_S0*8(a0)
+	stq	s1, JB_S1*8(a0)
+	stq	s2, JB_S2*8(a0)
+	stq	s3, JB_S3*8(a0)
+	stq	s4, JB_S4*8(a0)
+	stq	s5, JB_S5*8(a0)
+	stq	ra, JB_PC*8(a0)
+	addq	sp, 16, t0
+	stq	fp, JB_FP*8(a0)
+	stq	t0, JB_SP*8(a0)
+	stt	$f2, JB_F2*8(a0)
+	stt	$f3, JB_F3*8(a0)
+	stt	$f4, JB_F4*8(a0)
+	stt	$f5, JB_F5*8(a0)
+	stt	$f6, JB_F6*8(a0)
+	stt	$f7, JB_F7*8(a0)
+	stt	$f8, JB_F8*8(a0)
+	stt	$f9, JB_F9*8(a0)
+
+	/* Call to C to (potentially) save our signal mask.  */
+	jsr	ra, __sigjmp_save
+
+	ldq	ra, 0(sp)
+	addq	sp, 16, sp
+	ret
+
+END(__sigsetjmp)
+
+/* Put these traditional entry points in the same file so that we can
+   elide much of the nonsense in trying to jmp to the real function.  */
+
+ENTRY(_setjmp)
+	ldgp	gp, 0(pv)
+	mov	0, a1
+	br	$sigsetjmp_local
+END(_setjmp)
+
+ENTRY(setjmp)
+	ldgp	gp, 0(pv)
+	mov	1, a1
+	br	$sigsetjmp_local
+END(setjmp)
 
-	END(__sigsetjmp)
+weak_extern(_setjmp)
+weak_extern(setjmp)