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100 lines
2.4 KiB
C
100 lines
2.4 KiB
C
/* Copyright (C) 2011-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
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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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#ifndef _SYS_UCONTEXT_H
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#define _SYS_UCONTEXT_H 1
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#include <features.h>
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#include <bits/types/sigset_t.h>
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#include <bits/types/stack_t.h>
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#ifdef __USE_MISC
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# define __ctx(fld) fld
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#else
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# define __ctx(fld) __ ## fld
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#endif
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#ifdef __USE_MISC
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/* Get register type and register names. */
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# include <arch/abi.h>
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/* Type for general register. */
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typedef uint_reg_t greg_t;
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/* Number of general registers. Must agree with <asm/ptrace.h>. */
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# define NGREG 64
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/* Container for all general registers. */
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typedef greg_t gregset_t[NGREG];
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#endif
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#ifdef __USE_GNU
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/* Names for interesting registers in the `gregset_t' array. */
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enum
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{
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/* ... r0 through r51 are just 0 through 51 ... */
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REG_FP = TREG_FP,
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# define REG_FP REG_FP
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REG_TP = TREG_TP,
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# define REG_TP REG_TP
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REG_SP = TREG_SP,
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# define REG_SP REG_SP
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REG_LR = TREG_LR,
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# define REG_LR REG_LR
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};
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#endif
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#define __need_int_reg_t
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#include <arch/abi.h>
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/* A machine context is exactly a sigcontext. */
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typedef struct
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{
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__extension__ union
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{
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__uint_reg_t __ctx(gregs)[56];
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__extension__ struct
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{
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__uint_reg_t __ctx(__gregs)[53];
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__uint_reg_t __ctx(tp);
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__uint_reg_t __ctx(sp);
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__uint_reg_t __ctx(lr);
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};
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};
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__uint_reg_t __ctx(pc);
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__uint_reg_t __ctx(ics);
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__uint_reg_t __ctx(faultnum);
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__uint_reg_t __glibc_reserved1[5];
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} mcontext_t;
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/* Userlevel context. */
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typedef struct ucontext_t
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{
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unsigned long int __ctx(uc_flags);
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struct ucontext_t *uc_link;
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stack_t uc_stack;
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mcontext_t uc_mcontext;
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sigset_t uc_sigmask;
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} ucontext_t;
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#undef __ctx
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#endif /* sys/ucontext.h */
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