c5ff700116
Having already merged the ppc and ppc64 versions of signal.c, this patch finishes the job by merging signal.h. The two versions were almost identical already. Notable changes: - We use BITS_PER_LONG to correctly size sigset_t - Remove some uneeded #includes and struct forward declarations. This does mean adding an include to signal_32.c which relied on the indirect inclusion of sigcontext.h - As the ppc64 version, the merged signal.h has prototypes for do_signal() and do_signal32(). Thus remove extra prototypes from ppc_ksyms.c which had them directly. Built and booted on POWER5 LPAR (ARCH=ppc64 and ARCH=powerpc). Built for 32-bit powermac (ARCH=ppc and ARCH=powerpc) and Walnut (ARCH=ppc). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
150 lines
3.6 KiB
C
150 lines
3.6 KiB
C
#ifndef _ASM_POWERPC_SIGNAL_H
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#define _ASM_POWERPC_SIGNAL_H
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#include <linux/types.h>
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#include <linux/config.h>
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#define _NSIG 64
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#define _NSIG_BPW BITS_PER_LONG
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#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
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typedef unsigned long old_sigset_t; /* at least 32 bits */
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typedef struct {
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unsigned long sig[_NSIG_WORDS];
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} sigset_t;
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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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/*
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* SA_FLAGS values:
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*
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* SA_ONSTACK is not currently supported, but will allow sigaltstack(2).
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* SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
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* SA_RESTART flag to get restarting signals (which were the default long ago)
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* SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
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* SA_RESETHAND clears the handler when the signal is delivered.
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* SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
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* SA_NODEFER prevents the current signal from being masked in the handler.
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*
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* SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
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* Unix names RESETHAND and NODEFER respectively.
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*/
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#define SA_NOCLDSTOP 0x00000001U
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#define SA_NOCLDWAIT 0x00000002U
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#define SA_SIGINFO 0x00000004U
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#define SA_ONSTACK 0x08000000U
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#define SA_RESTART 0x10000000U
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#define SA_NODEFER 0x40000000U
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#define SA_RESETHAND 0x80000000U
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#define SA_NOMASK SA_NODEFER
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#define SA_ONESHOT SA_RESETHAND
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#define SA_INTERRUPT 0x20000000u /* dummy -- ignored */
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#define SA_RESTORER 0x04000000U
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/*
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* sigaltstack controls
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*/
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#define SS_ONSTACK 1
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#define SS_DISABLE 2
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#define MINSIGSTKSZ 2048
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#define SIGSTKSZ 8192
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#include <asm-generic/signal.h>
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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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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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struct k_sigaction {
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struct sigaction sa;
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};
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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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#ifdef __KERNEL__
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struct pt_regs;
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extern int do_signal(sigset_t *oldset, struct pt_regs *regs);
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extern int do_signal32(sigset_t *oldset, struct pt_regs *regs);
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#define ptrace_signal_deliver(regs, cookie) do { } while (0)
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#endif /* __KERNEL__ */
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#ifndef __powerpc64__
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/*
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* These are parameters to dbg_sigreturn syscall. They enable or
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* disable certain debugging things that can be done from signal
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* handlers. The dbg_sigreturn syscall *must* be called from a
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* SA_SIGINFO signal so the ucontext can be passed to it. It takes an
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* array of struct sig_dbg_op, which has the debug operations to
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* perform before returning from the signal.
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*/
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struct sig_dbg_op {
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int dbg_type;
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unsigned long dbg_value;
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};
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/* Enable or disable single-stepping. The value sets the state. */
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#define SIG_DBG_SINGLE_STEPPING 1
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/* Enable or disable branch tracing. The value sets the state. */
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#define SIG_DBG_BRANCH_TRACING 2
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#endif /* ! __powerpc64__ */
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#endif /* _ASM_POWERPC_SIGNAL_H */
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