50 lines
1.7 KiB
ArmAsm
50 lines
1.7 KiB
ArmAsm
/* Copyright (C) 1991, 1993, 1994, 1996, 1997 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 <sysdep.h>
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#define _ASM 1
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#include <jmp_buf.h>
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ENTRY (__sigsetjmp)
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/* Save our SP and FP; in the delay slot of the jump, save our
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return PC. Save the signal mask if requested with a tail-call
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for simplicity; it always returns zero. */
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#ifdef PIC
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2:
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jmpl 1f,%g2
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nop
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1:
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sethi %hi(_GLOBAL_OFFSET_TABLE_-(2b-.)),%l7
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sethi %hi(C_SYMBOL_NAME (__sigjmp_save)), %g3
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st %sp, [%o0 + (JB_SP * 4)]
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or %l7,%lo(_GLOBAL_OFFSET_TABLE_-(2b-.)),%l7
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or %g3,%lo(C_SYMBOL_NAME (__sigjmp_save)), %g3
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st %fp, [%o0 + (JB_FP * 4)]
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ld [%l7+%g3],%g1
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jmp %g1
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st %o7, [%o0+(JB_PC*4)]
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#else
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sethi %hi(C_SYMBOL_NAME (__sigjmp_save)), %g1
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st %sp, [%o0 + (JB_SP*4)]
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or %lo(C_SYMBOL_NAME (__sigjmp_save)), %g1, %g1
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st %fp, [%o0 + (JB_FP*4)]
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jmp %g1
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st %o7, [%o0 + (JB_PC*4)]
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#endif /* PIC */
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