diff options
Diffstat (limited to 'sysdeps/alpha/setjmp.S')
| -rw-r--r-- | sysdeps/alpha/setjmp.S | 68 |
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) |