summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/include/uapi/asm/signal.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/include/uapi/asm/signal.h')
-rw-r--r--arch/powerpc/include/uapi/asm/signal.h138
1 files changed, 138 insertions, 0 deletions
diff --git a/arch/powerpc/include/uapi/asm/signal.h b/arch/powerpc/include/uapi/asm/signal.h
new file mode 100644
index 000000000..85b0a7aa4
--- /dev/null
+++ b/arch/powerpc/include/uapi/asm/signal.h
@@ -0,0 +1,138 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_POWERPC_SIGNAL_H
+#define _UAPI_ASM_POWERPC_SIGNAL_H
+
+#include <linux/types.h>
+
+#define _NSIG 64
+#ifdef __powerpc64__
+#define _NSIG_BPW 64
+#else
+#define _NSIG_BPW 32
+#endif
+#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
+
+typedef unsigned long old_sigset_t; /* at least 32 bits */
+
+typedef struct {
+ unsigned long sig[_NSIG_WORDS];
+} sigset_t;
+
+#define SIGHUP 1
+#define SIGINT 2
+#define SIGQUIT 3
+#define SIGILL 4
+#define SIGTRAP 5
+#define SIGABRT 6
+#define SIGIOT 6
+#define SIGBUS 7
+#define SIGFPE 8
+#define SIGKILL 9
+#define SIGUSR1 10
+#define SIGSEGV 11
+#define SIGUSR2 12
+#define SIGPIPE 13
+#define SIGALRM 14
+#define SIGTERM 15
+#define SIGSTKFLT 16
+#define SIGCHLD 17
+#define SIGCONT 18
+#define SIGSTOP 19
+#define SIGTSTP 20
+#define SIGTTIN 21
+#define SIGTTOU 22
+#define SIGURG 23
+#define SIGXCPU 24
+#define SIGXFSZ 25
+#define SIGVTALRM 26
+#define SIGPROF 27
+#define SIGWINCH 28
+#define SIGIO 29
+#define SIGPOLL SIGIO
+/*
+#define SIGLOST 29
+*/
+#define SIGPWR 30
+#define SIGSYS 31
+#define SIGUNUSED 31
+
+/* These should not be considered constants from userland. */
+#define SIGRTMIN 32
+#define SIGRTMAX _NSIG
+
+/*
+ * SA_FLAGS values:
+ *
+ * SA_ONSTACK is not currently supported, but will allow sigaltstack(2).
+ * SA_RESTART flag to get restarting signals (which were the default long ago)
+ * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
+ * SA_RESETHAND clears the handler when the signal is delivered.
+ * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
+ * SA_NODEFER prevents the current signal from being masked in the handler.
+ *
+ * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
+ * Unix names RESETHAND and NODEFER respectively.
+ */
+#define SA_NOCLDSTOP 0x00000001U
+#define SA_NOCLDWAIT 0x00000002U
+#define SA_SIGINFO 0x00000004U
+#define SA_ONSTACK 0x08000000U
+#define SA_RESTART 0x10000000U
+#define SA_NODEFER 0x40000000U
+#define SA_RESETHAND 0x80000000U
+
+#define SA_NOMASK SA_NODEFER
+#define SA_ONESHOT SA_RESETHAND
+
+#define SA_RESTORER 0x04000000U
+
+#define MINSIGSTKSZ 2048
+#define SIGSTKSZ 8192
+
+#include <asm-generic/signal-defs.h>
+
+#ifndef __KERNEL__
+struct old_sigaction {
+ __sighandler_t sa_handler;
+ old_sigset_t sa_mask;
+ unsigned long sa_flags;
+ __sigrestore_t sa_restorer;
+};
+
+struct sigaction {
+ __sighandler_t sa_handler;
+ unsigned long sa_flags;
+ __sigrestore_t sa_restorer;
+ sigset_t sa_mask; /* mask last for extensibility */
+};
+#endif
+
+typedef struct sigaltstack {
+ void __user *ss_sp;
+ int ss_flags;
+ size_t ss_size;
+} stack_t;
+
+
+#ifndef __powerpc64__
+/*
+ * These are parameters to dbg_sigreturn syscall. They enable or
+ * disable certain debugging things that can be done from signal
+ * handlers. The dbg_sigreturn syscall *must* be called from a
+ * SA_SIGINFO signal so the ucontext can be passed to it. It takes an
+ * array of struct sig_dbg_op, which has the debug operations to
+ * perform before returning from the signal.
+ */
+struct sig_dbg_op {
+ int dbg_type;
+ unsigned long dbg_value;
+};
+
+/* Enable or disable single-stepping. The value sets the state. */
+#define SIG_DBG_SINGLE_STEPPING 1
+
+/* Enable or disable branch tracing. The value sets the state. */
+#define SIG_DBG_BRANCH_TRACING 2
+#endif /* ! __powerpc64__ */
+
+#endif /* _UAPI_ASM_POWERPC_SIGNAL_H */