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[PATCH] powerpc: Merge signal.h

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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>
This commit is contained in:
David Gibson 2005-11-09 11:21:07 +11:00 committed by Paul Mackerras
parent 31e7f1ff3c
commit c5ff700116
5 changed files with 22 additions and 156 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/powerpc/kernel/ppc_ksyms.c
View File

@ -44,6 +44,7 @@
#include <asm/cputable.h>
#include <asm/btext.h>
#include <asm/div64.h>
#include <asm/signal.h>
#ifdef CONFIG_8xx
#include <asm/commproc.h>
@ -56,7 +57,6 @@ extern void machine_check_exception(struct pt_regs *regs);
extern void alignment_exception(struct pt_regs *regs);
extern void program_check_exception(struct pt_regs *regs);
extern void single_step_exception(struct pt_regs *regs);
extern int do_signal(sigset_t *, struct pt_regs *);
extern int pmac_newworld;
extern int sys_sigreturn(struct pt_regs *regs);

1
arch/powerpc/kernel/signal_32.c
View File

@ -42,6 +42,7 @@
#include <asm/uaccess.h>
#include <asm/cacheflush.h>
#include <asm/sigcontext.h>
#ifdef CONFIG_PPC64
#include "ppc32.h"
#include <asm/unistd.h>

2
arch/ppc/kernel/ppc_ksyms.c
View File

@ -46,6 +46,7 @@
#include <asm/btext.h>
#include <asm/div64.h>
#include <asm/xmon.h>
#include <asm/signal.h>
#ifdef CONFIG_8xx
#include <asm/commproc.h>
@ -57,7 +58,6 @@ extern void machine_check_exception(struct pt_regs *regs);
extern void alignment_exception(struct pt_regs *regs);
extern void program_check_exception(struct pt_regs *regs);
extern void single_step_exception(struct pt_regs *regs);
extern int do_signal(sigset_t *, struct pt_regs *);
extern int pmac_newworld;
extern int sys_sigreturn(struct pt_regs *regs);

41
include/asm-ppc/signal.h → include/asm-powerpc/signal.h
View File

@ -1,18 +1,11 @@
#ifndef _ASMPPC_SIGNAL_H
#define _ASMPPC_SIGNAL_H
#ifndef _ASM_POWERPC_SIGNAL_H
#define _ASM_POWERPC_SIGNAL_H
#ifdef __KERNEL__
#include <linux/types.h>
#endif /* __KERNEL__ */
/* Avoid too many header ordering problems. */
struct siginfo;
/* Most things should be clean enough to redefine this at will, if care
is taken to make libc match. */
#include <linux/config.h>
#define _NSIG 64
#define _NSIG_BPW 32
#define _NSIG_BPW BITS_PER_LONG
#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
typedef unsigned long old_sigset_t; /* at least 32 bits */
@ -77,19 +70,19 @@ typedef struct {
* SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
* Unix names RESETHAND and NODEFER respectively.
*/
#define SA_NOCLDSTOP 0x00000001
#define SA_NOCLDWAIT 0x00000002
#define SA_SIGINFO 0x00000004
#define SA_ONSTACK 0x08000000
#define SA_RESTART 0x10000000
#define SA_NODEFER 0x40000000
#define SA_RESETHAND 0x80000000
#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_INTERRUPT 0x20000000 /* dummy -- ignored */
#define SA_INTERRUPT 0x20000000u /* dummy -- ignored */
#define SA_RESTORER 0x04000000
#define SA_RESTORER 0x04000000U
/*
* sigaltstack controls
@ -127,10 +120,13 @@ typedef struct sigaltstack {
} stack_t;
#ifdef __KERNEL__
#include <asm/sigcontext.h>
struct pt_regs;
extern int do_signal(sigset_t *oldset, struct pt_regs *regs);
extern int do_signal32(sigset_t *oldset, struct pt_regs *regs);
#define ptrace_signal_deliver(regs, cookie) do { } while (0)
#endif /* __KERNEL__ */
#ifndef __powerpc64__
/*
* These are parameters to dbg_sigreturn syscall. They enable or
* disable certain debugging things that can be done from signal
@ -149,5 +145,6 @@ struct sig_dbg_op {
/* Enable or disable branch tracing. The value sets the state. */
#define SIG_DBG_BRANCH_TRACING 2
#endif /* ! __powerpc64__ */
#endif
#endif /* _ASM_POWERPC_SIGNAL_H */

132
include/asm-ppc64/signal.h
View File

@ -1,132 +0,0 @@
#ifndef _ASMPPC64_SIGNAL_H
#define _ASMPPC64_SIGNAL_H
#include <linux/types.h>
#include <linux/compiler.h>
#include <asm/siginfo.h>
/* Avoid too many header ordering problems. */
struct siginfo;
#define _NSIG 64
#define _NSIG_BPW 64
#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_INTERRUPT is a no-op, but left due to historical reasons. Use the
* 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_INTERRUPT 0x20000000u /* dummy -- ignored */
#define SA_RESTORER 0x04000000u
/*
* sigaltstack controls
*/
#define SS_ONSTACK 1
#define SS_DISABLE 2
#define MINSIGSTKSZ 2048
#define SIGSTKSZ 8192
#include <asm-generic/signal.h>
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 */
};
struct k_sigaction {
struct sigaction sa;
};
typedef struct sigaltstack {
void __user *ss_sp;
int ss_flags;
size_t ss_size;
} stack_t;
struct pt_regs;
struct timespec;
extern int do_signal(sigset_t *oldset, struct pt_regs *regs);
extern int do_signal32(sigset_t *oldset, struct pt_regs *regs);
#define ptrace_signal_deliver(regs, cookie) do { } while (0)
#endif /* _ASMPPC64_SIGNAL_H */