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[/] [or1k_old/] [trunk/] [linux/] [uClibc/] [libc/] [sysdeps/] [linux/] [sh/] [setjmp.S] - Blame information for rev 1765

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Line No. Rev Author Line
1 1325 phoenix
/* setjmp for SH3.
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   Copyright (C) 1999, 2000 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Library General Public License as
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   published by the Free Software Foundation; either version 2 of the
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   License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Library General Public License for more details.
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   You should have received a copy of the GNU Library General Public
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   License along with the GNU C Library; see the file COPYING.LIB.  If not,
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   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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   Boston, MA 02111-1307, USA.  */
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#include 
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#define _SETJMP_H
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#define _ASM
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#include 
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        .text
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/* This just does a tail-call to `__sigsetjmp (ARG, 0)'.
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   We cannot do it in C because it must be a tail-call, so frame-unwinding
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   in setjmp doesn't clobber the state restored by longjmp.  */
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        .align 4
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        .type   _setjmp,@function
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        .globl  _setjmp;
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_setjmp:
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        bra     __sigsetjmp_intern
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         mov    #0, r1
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        .size _setjmp,.-_setjmp;
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/* This just does a tail-call to `__sigsetjmp (ARG, 1)'.
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   We cannot do it in C because it must be a tail-call, so frame-unwinding
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   in setjmp doesn't clobber the state restored by longjmp.  */
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        .align 4
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        .type   setjmp,@function
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        .globl  setjmp;
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setjmp:
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        bra     __sigsetjmp_intern
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         mov    #1, r1
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        .size setjmp,.-setjmp;
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        .align 4
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        .type   __sigsetjmp,@function
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        .globl  __sigsetjmp;
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__sigsetjmp:
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        mov     r0, r1
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        nop             /* align this guy */
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__sigsetjmp_intern:
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        /* Save registers */
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#if defined __UCLIBC_HAS_FLOATS__ && ! defined __UCLIBC_HAS_SOFT_FLOAT__
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        add     #(JB_SIZE), r4
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        fmov.s  fr15, @-r4
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        fmov.s  fr14, @-r4
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        fmov.s  fr13, @-r4
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        fmov.s  fr12, @-r4
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        sts.l   fpscr, @-r4
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#else
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        add     #(JB_SIZE-(5*4)), r4 /* this code doesn't do FP yet */
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#endif
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        stc.l   gbr, @-r4
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        sts.l   pr, @-r4
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        mov.l   r15, @-r4
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        mov.l   r14, @-r4
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        mov.l   r13, @-r4
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        mov.l   r12, @-r4
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        mov.l   r11, @-r4
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        mov.l   r10, @-r4
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        mov.l   r9, @-r4
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        mov.l   r8, @-r4
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#if defined __HAVE_ELF__ && defined __HAVE_SHARED__
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        mov.l   .LG, r2
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        mova    .LG, r0
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        add     r0, r2
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        /* Make a tail call to __sigjmp_save; it takes the same args.  */
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        mov.l   .L1, r0
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        mov.l   @(r0,r2),r0
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        jmp     @r0
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         mov     r1, r0
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        .align  2
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.LG:    .long   _GLOBAL_OFFSET_TABLE_
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.L1:    .long   __sigjmp_save@GOT
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#else
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        /* Make a tail call to __sigjmp_save; it takes the same args.  */
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        mov.l   .L1, r0
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        braf    r0
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         mov     r1, r0
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.jmp_loc:
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        .align  2
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.L1:    .long   __sigjmp_save - .jmp_loc
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#endif
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        .size __sigsetjmp,.-__sigsetjmp;

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