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67 lines
1.7 KiB
ArmAsm
67 lines
1.7 KiB
ArmAsm
/* Copyright (C) 1997-2013 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Richard Henderson (rth@tamu.edu).
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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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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/* __sigsetjmp is implemented in terms of the getcontext trap on
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Linux/Sparc64. */
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#include <sysdep.h>
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/* Offsets into the jmp_buf structure. */
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#define O_mask_was_saved 512
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#define O_gregs 32
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#define O_g1 (O_gregs + 4*8)
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/* int _setjmp(jmp_buf) */
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ENTRY(_setjmp)
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ba __sigsetjmp_local
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set 0, %o1
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END(_setjmp)
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libc_hidden_def (_setjmp)
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/* int setjmp(jmp_buf) */
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ENTRY(setjmp)
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ba,pt %xcc, __sigsetjmp_local
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set 1, %o1
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END(setjmp)
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/* int __sigsetjmp(jmp_buf, savemask) */
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ENTRY(__sigsetjmp)
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__sigsetjmp_local:
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/* Record whether the user is intending to save the sigmask. */
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st %o1, [%o0 + O_mask_was_saved]
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/* Load up our return value, as longjmp is going to override
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the jmp_buf on its way back. */
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mov %g0, %g1
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/* And call getcontext! */
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ta 0x6e
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retl
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mov %g1, %o0
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END(__sigsetjmp)
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weak_extern(_setjmp)
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weak_extern(setjmp)
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