glibc/sysdeps/mips/bsd-setjmp.S

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/* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. MIPS version.
Copyright (C) 1996-2018 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 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.
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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
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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
<http://www.gnu.org/licenses/>. */
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/* This just does a tail-call to `__sigsetjmp (ARG, 1)'.
We cannot do it in C because it must be a tail-call, so frame-unwinding
in setjmp doesn't clobber the state restored by longjmp. */
#include <sysdep.h>
.set nomips16
#ifdef __PIC__
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.option pic2
#endif
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ENTRY (setjmp)
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.set noreorder
#ifdef __PIC__
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.cpload t9
.set reorder
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la t9, C_SYMBOL_NAME (__sigsetjmp)
#endif
li a1, 1 /* Pass a second argument of one. */
#ifdef __PIC__
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jr t9
#else
j C_SYMBOL_NAME (__sigsetjmp)
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#endif
END (setjmp)