mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-26 12:41:05 +00:00
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.
60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
/* sigstack, sigaltstack definitions.
|
|
Copyright (C) 1998-2016 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _BITS_SIGSTACK_H
|
|
#define _BITS_SIGSTACK_H 1
|
|
|
|
#if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H
|
|
# error "Never include this file directly. Use <signal.h> instead"
|
|
#endif
|
|
|
|
|
|
/* Structure describing a signal stack (obsolete). */
|
|
struct sigstack
|
|
{
|
|
__ptr_t ss_sp; /* Signal stack pointer. */
|
|
int ss_onstack; /* Nonzero if executing on this stack. */
|
|
};
|
|
|
|
|
|
/* Alternate, preferred interface. */
|
|
typedef struct sigaltstack
|
|
{
|
|
__ptr_t ss_sp;
|
|
size_t ss_size;
|
|
int ss_flags;
|
|
} stack_t;
|
|
|
|
|
|
/* Possible values for `ss_flags.'. */
|
|
enum
|
|
{
|
|
SS_ONSTACK = 0x0001,
|
|
#define SS_ONSTACK SS_ONSTACK
|
|
SS_DISABLE = 0x0004
|
|
#define SS_DISABLE SS_DISABLE
|
|
};
|
|
|
|
/* Minumum stack size for a signal handler. */
|
|
#define MINSIGSTKSZ 8192
|
|
|
|
/* System default stack size. */
|
|
#define SIGSTKSZ (MINSIGSTKSZ + 32768)
|
|
|
|
#endif /* bits/sigstack.h */
|