Update.

[platform/upstream/glibc.git] / sysdeps / alpha / setjmp.S

diff --git a/sysdeps/alpha/setjmp.S b/sysdeps/alpha/setjmp.S
index 4b2e147..48fe33b 100644 (file)
--- 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)