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50 lines
1.8 KiB
C
50 lines
1.8 KiB
C
/* Copyright (C) 1999-2013 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Philip Blundell <philb@gnu.org>, 1999.
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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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<http://www.gnu.org/licenses/>. */
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#include <sys/ucontext.h>
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#include "kernel-features.h"
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#define SIGCONTEXT siginfo_t *_si, struct ucontext *
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#define SIGCONTEXT_EXTRA_ARGS _si,
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/* The sigcontext structure changed between 2.0 and 2.1 kernels. On any
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modern system we should be able to assume that the "new" format will be
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in use. */
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#define GET_PC(ctx) ((void *) (ctx)->uc_mcontext.arm_pc)
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#define GET_FRAME(ctx) ADVANCE_STACK_FRAME ((void *) ctx->uc_mcontext.arm_fp)
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#define GET_STACK(ctx) ((void *) (ctx)->uc_mcontext.arm_sp)
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#define ADVANCE_STACK_FRAME(frm) \
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((struct layout *)frm - 1)
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#define CALL_SIGHANDLER(handler, signo, ctx) \
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(handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))
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/* There is no reliable way to get the sigcontext unless we use a
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three-argument signal handler. */
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#define __sigaction(sig, act, oact) ({ \
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(act)->sa_flags |= SA_SIGINFO; \
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(__sigaction) (sig, act, oact); \
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})
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#define sigaction(sig, act, oact) ({ \
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(act)->sa_flags |= SA_SIGINFO; \
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(sigaction) (sig, act, oact); \
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})
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