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70d45632ad
In the !defined __PIC__ case, we cannot guarantee that the delay slot is properly filled at the final `j` instuction without reordering active. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
44 lines
1.3 KiB
ArmAsm
44 lines
1.3 KiB
ArmAsm
/* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. MIPS version.
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Copyright (C) 1996-2025 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
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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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<https://www.gnu.org/licenses/>. */
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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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#include <sysdep.h>
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.set nomips16
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#ifdef __PIC__
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.option pic2
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#endif
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ENTRY (setjmp)
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#ifdef __PIC__
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.set noreorder
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.cpload t9
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.set reorder
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la t9, C_SYMBOL_NAME (__sigsetjmp)
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#endif
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li a1, 1 /* Pass a second argument of one. */
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#ifdef __PIC__
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jr t9
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#else
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j C_SYMBOL_NAME (__sigsetjmp)
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#endif
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END (setjmp)
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