1 files changed, 88 insertions, 0 deletions
diff --git a/include/linux/signal_types.h b/include/linux/signal_types.h
new file mode 100644
index 000000000..a70b2bdbf
--- /dev/null
+++ b/include/linux/signal_types.h
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_SIGNAL_TYPES_H
+#define _LINUX_SIGNAL_TYPES_H
+
+/*
+ * Basic signal handling related data type definitions:
+ */
+
+#include <linux/list.h>
+#include <uapi/linux/signal.h>
+
+typedef struct kernel_siginfo {
+	__SIGINFO;
+} kernel_siginfo_t;
+
+struct ucounts;
+
+/*
+ * Real Time signals may be queued.
+ */
+
+struct sigqueue {
+	struct list_head list;
+	int flags;
+	kernel_siginfo_t info;
+	struct ucounts *ucounts;
+};
+
+/* flags values. */
+#define SIGQUEUE_PREALLOC	1
+
+struct sigpending {
+	struct list_head list;
+	sigset_t signal;
+};
+
+struct sigaction {
+#ifndef __ARCH_HAS_IRIX_SIGACTION
+	__sighandler_t	sa_handler;
+	unsigned long	sa_flags;
+#else
+	unsigned int	sa_flags;
+	__sighandler_t	sa_handler;
+#endif
+#ifdef __ARCH_HAS_SA_RESTORER
+	__sigrestore_t sa_restorer;
+#endif
+	sigset_t	sa_mask;	/* mask last for extensibility */
+};
+
+struct k_sigaction {
+	struct sigaction sa;
+#ifdef __ARCH_HAS_KA_RESTORER
+	__sigrestore_t ka_restorer;
+#endif
+};
+
+#ifdef CONFIG_OLD_SIGACTION
+struct old_sigaction {
+	__sighandler_t sa_handler;
+	old_sigset_t sa_mask;
+	unsigned long sa_flags;
+	__sigrestore_t sa_restorer;
+};
+#endif
+
+struct ksignal {
+	struct k_sigaction ka;
+	kernel_siginfo_t info;
+	int sig;
+};
+
+/* Used to kill the race between sigaction and forced signals */
+#define SA_IMMUTABLE		0x00800000
+
+#ifndef __ARCH_UAPI_SA_FLAGS
+#ifdef SA_RESTORER
+#define __ARCH_UAPI_SA_FLAGS	SA_RESTORER
+#else
+#define __ARCH_UAPI_SA_FLAGS	0
+#endif
+#endif
+
+#define UAPI_SA_FLAGS                                                          \
+	(SA_NOCLDSTOP | SA_NOCLDWAIT | SA_SIGINFO | SA_ONSTACK | SA_RESTART |  \
+	 SA_NODEFER | SA_RESETHAND | SA_EXPOSE_TAGBITS | __ARCH_UAPI_SA_FLAGS)
+
+#endif /* _LINUX_SIGNAL_TYPES_H */