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/* Copyright (C) 1997-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson (rth@tamu.edu).
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
/* __sigsetjmp is implemented in terms of the getcontext trap on
Linux/Sparc64. */
#include <sysdep.h>
/* Offsets into the jmp_buf structure. */
#define O_mask_was_saved 512
#define O_gregs 32
#define O_g1 (O_gregs + 4*8)
/* int _setjmp(jmp_buf) */
ENTRY(_setjmp)
ba __sigsetjmp_local
set 0, %o1
END(_setjmp)
libc_hidden_def (_setjmp)
/* int setjmp(jmp_buf) */
ENTRY(setjmp)
ba,pt %xcc, __sigsetjmp_local
set 1, %o1
END(setjmp)
/* int __sigsetjmp(jmp_buf, savemask) */
ENTRY(__sigsetjmp)
__sigsetjmp_local:
/* Record whether the user is intending to save the sigmask. */
st %o1, [%o0 + O_mask_was_saved]
/* Load up our return value, as longjmp is going to override
the jmp_buf on its way back. */
mov %g0, %g1
/* And call getcontext! */
ta 0x6e
retl
mov %g1, %o0
END(__sigsetjmp)
hidden_def (__sigsetjmp)
weak_extern(_setjmp)
weak_extern(setjmp)
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