/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_SIGNAL_TYPES_H
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#define _LINUX_SIGNAL_TYPES_H
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/*
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* Basic signal handling related data type definitions:
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*/
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#include <linux/list.h>
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#include <uapi/linux/signal.h>
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typedef struct kernel_siginfo {
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__SIGINFO;
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} kernel_siginfo_t;
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/*
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* Real Time signals may be queued.
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*/
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struct sigqueue {
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struct list_head list;
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int flags;
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kernel_siginfo_t info;
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struct user_struct *user;
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};
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/* flags values. */
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#define SIGQUEUE_PREALLOC 1
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struct sigpending {
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struct list_head list;
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sigset_t signal;
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};
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struct sigaction {
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#ifndef __ARCH_HAS_IRIX_SIGACTION
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__sighandler_t sa_handler;
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unsigned long sa_flags;
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#else
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unsigned int sa_flags;
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__sighandler_t sa_handler;
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#endif
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#ifdef __ARCH_HAS_SA_RESTORER
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__sigrestore_t sa_restorer;
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#endif
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sigset_t sa_mask; /* mask last for extensibility */
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};
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struct k_sigaction {
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struct sigaction sa;
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#ifdef __ARCH_HAS_KA_RESTORER
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__sigrestore_t ka_restorer;
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#endif
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};
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#ifdef CONFIG_OLD_SIGACTION
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struct old_sigaction {
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__sighandler_t sa_handler;
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old_sigset_t sa_mask;
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unsigned long sa_flags;
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__sigrestore_t sa_restorer;
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};
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#endif
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struct ksignal {
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struct k_sigaction ka;
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kernel_siginfo_t info;
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int sig;
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};
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#ifndef __ARCH_UAPI_SA_FLAGS
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#ifdef SA_RESTORER
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#define __ARCH_UAPI_SA_FLAGS SA_RESTORER
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#else
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#define __ARCH_UAPI_SA_FLAGS 0
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#endif
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#endif
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#define UAPI_SA_FLAGS \
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(SA_NOCLDSTOP | SA_NOCLDWAIT | SA_SIGINFO | SA_ONSTACK | SA_RESTART | \
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SA_NODEFER | SA_RESETHAND | SA_EXPOSE_TAGBITS | __ARCH_UAPI_SA_FLAGS)
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#endif /* _LINUX_SIGNAL_TYPES_H */
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