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Do the work; don't call __setjmp_aux. Move _setjmp and setjmp from

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bsd-*.S.
This commit is contained in:
Ulrich Drepper 1997-09-11 03:14:40 +00:00
parent 33ec2a1c5e
commit 38a2fc1c51
1 changed files with 59 additions and 11 deletions
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70
sysdeps/alpha/setjmp.S
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@ -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. */
#include <sysdep.h>
#define __ASSEMBLY__
/* 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)
#include <sysdep.h>
#include <bits/setjmp.h>
.ent __sigsetjmp
.global __sigsetjmp
__sigsetjmp:
ldgp gp, 0(pv)
$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)
END(__sigsetjmp)
/* 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)
weak_extern(_setjmp)
weak_extern(setjmp)