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65 lines
1.9 KiB
ArmAsm
65 lines
1.9 KiB
ArmAsm
/* Copyright (C) 1997-2020 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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<https://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#include "ucontext_i.h"
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/* int getcontext(ucontext_t *); */
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ENTRY(__getcontext)
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ldx [%o0 + UC_LINK], %o1 /* Preserve uc_link field, the
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trap clears it. */
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ta 0x6e
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1:
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ldx [%o0 + UC_M_PC], %o2
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ldx [%o0 + UC_M_NPC], %o3
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ldx [%o0 + __UC_SIGMASK], %o4
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stx %o1, [%o0 + UC_LINK]
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add %o2, 2f - 1b, %o2
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stx %o2, [%o0 + UC_M_PC]
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add %o3, 2f - 1b, %o3
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stx %o3, [%o0 + UC_M_NPC]
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#if SIGMASK_WORDS == 16
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stx %o4, [%o0 + UC_SIGMASK]
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stx %g0, [%o0 + UC_SIGMASK + 8]
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stx %g0, [%o0 + UC_SIGMASK + 16]
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stx %g0, [%o0 + UC_SIGMASK + 24]
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stx %g0, [%o0 + UC_SIGMASK + 32]
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stx %g0, [%o0 + UC_SIGMASK + 40]
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stx %g0, [%o0 + UC_SIGMASK + 48]
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stx %g0, [%o0 + UC_SIGMASK + 56]
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stx %g0, [%o0 + UC_SIGMASK + 64]
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stx %g0, [%o0 + UC_SIGMASK + 72]
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stx %g0, [%o0 + UC_SIGMASK + 80]
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stx %g0, [%o0 + UC_SIGMASK + 88]
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stx %g0, [%o0 + UC_SIGMASK + 96]
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stx %g0, [%o0 + UC_SIGMASK + 104]
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stx %g0, [%o0 + UC_SIGMASK + 112]
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stx %g0, [%o0 + UC_SIGMASK + 120]
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#else
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# error Adjust __getcontext
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#endif
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2:
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retl
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clr %o0
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END(__getcontext)
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weak_alias (__getcontext, getcontext)
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