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52 lines
1.9 KiB
ArmAsm
52 lines
1.9 KiB
ArmAsm
/* Swap two contexts. OpenRISC version.
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Copyright (C) 2022-2025 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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#include <shlib-compat.h>
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#include <sysdep.h>
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#include "ucontext_i.h"
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#define __CONTEXT_FUNC_NAME __swapcontext
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#define __CONTEXT_ENABLE_FPCSR 1
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#define __CONTEXT_SIGMASK_OFFSET UCONTEXT_SIGMASK
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#include "swapcontext-common.S"
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versioned_symbol (libc, __swapcontext, swapcontext, GLIBC_2_40)
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#if SHLIB_COMPAT (libc, GLIBC_2_35, GLIBC_2_40)
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/* Define a compat version of swapcontext for glibc's before the fpcsr
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field was added to mcontext_t. The offset sigmask changed with this
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introduction, the change was done because glibc's definition of
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ucontext_t was initially defined incompatible with the Linux
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definition of ucontext_t. We keep the compatability definition to
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allow getcontext, setcontext and swapcontext to work in older
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binaries. */
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# undef __CONTEXT_FUNC_NAME
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# undef __CONTEXT_ENABLE_FPCSR
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# undef __CONTEXT_SIGMASK_OFFSET
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# define __CONTEXT_FUNC_NAME __swapcontext_nofpcsr
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# define __CONTEXT_SIGMASK_OFFSET (UCONTEXT_SIGMASK - 4)
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# include "swapcontext-common.S"
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compat_symbol (libc, __swapcontext_nofpcsr, swapcontext, GLIBC_2_35)
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#endif
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