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c66b29f9cc
sys/ucontext.h unconditionally uses stack_t, and it does not make sense to change that. But signal.h only declares stack_t under __USE_XOPEN_EXTENDED || __USE_XOPEN2K8. The actual definition is already in a bits header, bits/sigstack.h, but that header insists on only being included by signal.h, so we have to change that as well as all of the sys/ucontext.h variants. (Some but not all variants of bits/sigcontext.h, which sys/ucontext.h may also need, had already received this adjustment; for consistency, I made them all the same, even if that's not strictly necessary in some configurations.) bits/sigcontext.h and bits/sigstack.h also all need to receive multiple inclusion guards. * sysdeps/generic/sys/ucontext.h * sysdeps/arm/sys/ucontext.h * sysdeps/i386/sys/ucontext.h * sysdeps/m68k/sys/ucontext.h * sysdeps/mips/sys/ucontext.h * sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h * sysdeps/unix/sysv/linux/alpha/sys/ucontext.h * sysdeps/unix/sysv/linux/arm/sys/ucontext.h * sysdeps/unix/sysv/linux/hppa/sys/ucontext.h * sysdeps/unix/sysv/linux/ia64/sys/ucontext.h * sysdeps/unix/sysv/linux/m68k/sys/ucontext.h * sysdeps/unix/sysv/linux/mips/sys/ucontext.h * sysdeps/unix/sysv/linux/nios2/sys/ucontext.h * sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h * sysdeps/unix/sysv/linux/s390/sys/ucontext.h * sysdeps/unix/sysv/linux/sh/sys/ucontext.h * sysdeps/unix/sysv/linux/sparc/sys/ucontext.h * sysdeps/unix/sysv/linux/tile/sys/ucontext.h * sysdeps/unix/sysv/linux/x86/sys/ucontext.h: Include both bits/sigcontext.h and bits/sigstack.h. Fix grammar error in comment, if present. * bits/sigstack.h * sysdeps/unix/sysv/linux/aarch64/bits/sigstack.h * sysdeps/unix/sysv/linux/alpha/bits/sigstack.h * sysdeps/unix/sysv/linux/bits/sigstack.h * sysdeps/unix/sysv/linux/ia64/bits/sigstack.h * sysdeps/unix/sysv/linux/mips/bits/sigstack.h * sysdeps/unix/sysv/linux/powerpc/bits/sigstack.h * sysdeps/unix/sysv/linux/sparc/bits/sigstack.h * bits/sigcontext.h * sysdeps/mach/hurd/i386/bits/sigcontext.h * sysdeps/unix/sysv/linux/bits/sigcontext.h * sysdeps/unix/sysv/linux/ia64/bits/sigcontext.h * sysdeps/unix/sysv/linux/sparc/bits/sigcontext.h: Add multiple inclusion guard. Permit inclusion by sys/ucontext.h as well as signal.h, if this was not already allowed. Request definition of size_t if necessary. Minimize semantically-null differences across files.
119 lines
2.5 KiB
C
119 lines
2.5 KiB
C
/* Copyright (C) 1997-2016 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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<http://www.gnu.org/licenses/>. */
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/* System V/m68k ABI compliant context switching support. */
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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 <signal.h>
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/* We need the signal context definitions even if they are not exposed
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by <signal.h>. */
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#include <bits/sigcontext.h>
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#include <bits/sigstack.h>
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/* Type for general register. */
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typedef int greg_t;
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/* Number of general registers. */
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#define NGREG 18
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/* Container for all general registers. */
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typedef greg_t gregset_t[NGREG];
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/* Number of each register is the `gregset_t' array. */
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enum
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{
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R_D0 = 0,
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#define R_D0 R_D0
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R_D1 = 1,
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#define R_D1 R_D1
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R_D2 = 2,
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#define R_D2 R_D2
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R_D3 = 3,
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#define R_D3 R_D3
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R_D4 = 4,
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#define R_D4 R_D4
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R_D5 = 5,
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#define R_D5 R_D5
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R_D6 = 6,
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#define R_D6 R_D6
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R_D7 = 7,
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#define R_D7 R_D7
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R_A0 = 8,
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#define R_A0 R_A0
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R_A1 = 9,
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#define R_A1 R_A1
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R_A2 = 10,
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#define R_A2 R_A2
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R_A3 = 11,
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#define R_A3 R_A3
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R_A4 = 12,
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#define R_A4 R_A4
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R_A5 = 13,
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#define R_A5 R_A5
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R_A6 = 14,
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#define R_A6 R_A6
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R_A7 = 15,
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#define R_A7 R_A7
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R_SP = 15,
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#define R_SP R_SP
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R_PC = 16,
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#define R_PC R_PC
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R_PS = 17
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#define R_PS R_PS
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};
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/* Structure to describe FPU registers. */
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typedef struct fpregset
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{
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int f_pcr;
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int f_psr;
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int f_fpiaddr;
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#ifdef __mcoldfire__
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int f_fpregs[8][2];
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#else
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int f_fpregs[8][3];
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#endif
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} fpregset_t;
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/* Context to describe whole processor state. */
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typedef struct
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{
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int version;
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gregset_t gregs;
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fpregset_t fpregs;
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} mcontext_t;
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#define MCONTEXT_VERSION 2
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/* Userlevel context. */
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typedef struct ucontext
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{
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unsigned long uc_flags;
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struct ucontext *uc_link;
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stack_t uc_stack;
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mcontext_t uc_mcontext;
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unsigned long uc_filler[80];
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__sigset_t uc_sigmask;
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} ucontext_t;
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#endif /* sys/ucontext.h */
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