1d82b7898f
Most architectures with the exception of alpha, mips, parisc and sparc use the same values for these flags. Move their definitions into asm-generic/signal-defs.h and allow the architectures with non-standard values to override them. Also, document the non-standard flag values in order to make it easier to add new generic flags in the future. A consequence of this change is that on powerpc and x86, the constants' values aside from SA_RESETHAND change signedness from unsigned to signed. This is not expected to impact realistic use of these constants. In particular the typical use of the constants where they are or'ed together and assigned to sa_flags (or another int variable) would not be affected. Signed-off-by: Peter Collingbourne <pcc@google.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Reviewed-by: Dave Martin <Dave.Martin@arm.com> Link: https://linux-review.googlesource.com/id/Ia3849f18b8009bf41faca374e701cdca36974528 Link: https://lkml.kernel.org/r/b6d0d1ec34f9ee93e1105f14f288fba5f89d1f24.1605235762.git.pcc@google.com Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
113 lines
2.1 KiB
C
113 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _UAPI_ASM_X86_SIGNAL_H
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#define _UAPI_ASM_X86_SIGNAL_H
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#ifndef __ASSEMBLY__
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#include <linux/types.h>
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#include <linux/time.h>
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#include <linux/compiler.h>
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/* Avoid too many header ordering problems. */
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struct siginfo;
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#ifndef __KERNEL__
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/* Here we must cater to libcs that poke about in kernel headers. */
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#define NSIG 32
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typedef unsigned long sigset_t;
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#endif /* __KERNEL__ */
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#endif /* __ASSEMBLY__ */
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#define SIGHUP 1
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#define SIGINT 2
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#define SIGQUIT 3
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#define SIGILL 4
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#define SIGTRAP 5
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#define SIGABRT 6
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#define SIGIOT 6
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#define SIGBUS 7
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#define SIGFPE 8
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#define SIGKILL 9
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#define SIGUSR1 10
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#define SIGSEGV 11
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#define SIGUSR2 12
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#define SIGPIPE 13
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#define SIGALRM 14
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#define SIGTERM 15
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#define SIGSTKFLT 16
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#define SIGCHLD 17
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#define SIGCONT 18
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#define SIGSTOP 19
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#define SIGTSTP 20
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#define SIGTTIN 21
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#define SIGTTOU 22
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#define SIGURG 23
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#define SIGXCPU 24
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#define SIGXFSZ 25
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#define SIGVTALRM 26
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#define SIGPROF 27
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#define SIGWINCH 28
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#define SIGIO 29
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#define SIGPOLL SIGIO
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/*
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#define SIGLOST 29
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*/
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#define SIGPWR 30
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#define SIGSYS 31
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#define SIGUNUSED 31
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/* These should not be considered constants from userland. */
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#define SIGRTMIN 32
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#define SIGRTMAX _NSIG
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#define SA_RESTORER 0x04000000
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#define MINSIGSTKSZ 2048
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#define SIGSTKSZ 8192
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#include <asm-generic/signal-defs.h>
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#ifndef __ASSEMBLY__
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# ifndef __KERNEL__
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/* Here we must cater to libcs that poke about in kernel headers. */
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#ifdef __i386__
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struct sigaction {
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union {
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__sighandler_t _sa_handler;
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void (*_sa_sigaction)(int, struct siginfo *, void *);
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} _u;
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sigset_t sa_mask;
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unsigned long sa_flags;
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void (*sa_restorer)(void);
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};
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#define sa_handler _u._sa_handler
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#define sa_sigaction _u._sa_sigaction
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#else /* __i386__ */
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struct sigaction {
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__sighandler_t sa_handler;
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unsigned long sa_flags;
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__sigrestore_t sa_restorer;
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sigset_t sa_mask; /* mask last for extensibility */
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};
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#endif /* !__i386__ */
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# endif /* ! __KERNEL__ */
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typedef struct sigaltstack {
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void __user *ss_sp;
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int ss_flags;
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size_t ss_size;
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} stack_t;
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#endif /* __ASSEMBLY__ */
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#endif /* _UAPI_ASM_X86_SIGNAL_H */
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