m68k: Switch to generic siginfo layout

This patch switches m68k to generic siginfo layout.  The custom layout
of m68k's `struct siginfo' had several issues due to not considering
aliasing of members in the union, e.g., _uid32 was at different offsets
in ._kill, ._rt and ._sigchld.

Signed-off-by: Maxim Kuvyrkov <maxim@codesourcery.com>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

diff --git a/arch/m68k/include/asm/siginfo.h b/arch/m68k/include/asm/siginfo.h
index ca7dde8..851d3d7 100644 (file)
--- a/arch/m68k/include/asm/siginfo.h
+++ b/arch/m68k/include/asm/siginfo.h
@@ -1,97 +1,6 @@
 #ifndef _M68K_SIGINFO_H
 #define _M68K_SIGINFO_H
 
-#ifndef __uClinux__
-#define HAVE_ARCH_SIGINFO_T
-#define HAVE_ARCH_COPY_SIGINFO
-#endif
-
 #include <asm-generic/siginfo.h>
 
-#ifndef __uClinux__
-
-typedef struct siginfo {
-       int si_signo;
-       int si_errno;
-       int si_code;
-
-       union {
-               int _pad[SI_PAD_SIZE];
-
-               /* kill() */
-               struct {
-                       __kernel_pid_t _pid;    /* sender's pid */
-                       __kernel_uid_t _uid;    /* backwards compatibility */
-                       __kernel_uid32_t _uid32; /* sender's uid */
-               } _kill;
-
-               /* POSIX.1b timers */
-               struct {
-                       timer_t _tid;           /* timer id */
-                       int _overrun;           /* overrun count */
-                       char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)];
-                       sigval_t _sigval;       /* same as below */
-                       int _sys_private;       /* not to be passed to user */
-               } _timer;
-
-               /* POSIX.1b signals */
-               struct {
-                       __kernel_pid_t _pid;    /* sender's pid */
-                       __kernel_uid_t _uid;    /* backwards compatibility */
-                       sigval_t _sigval;
-                       __kernel_uid32_t _uid32; /* sender's uid */
-               } _rt;
-
-               /* SIGCHLD */
-               struct {
-                       __kernel_pid_t _pid;    /* which child */
-                       __kernel_uid_t _uid;    /* backwards compatibility */
-                       int _status;            /* exit code */
-                       clock_t _utime;
-                       clock_t _stime;
-                       __kernel_uid32_t _uid32; /* sender's uid */
-               } _sigchld;
-
-               /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
-               struct {
-                       void *_addr; /* faulting insn/memory ref. */
-               } _sigfault;
-
-               /* SIGPOLL */
-               struct {
-                       int _band;      /* POLL_IN, POLL_OUT, POLL_MSG */
-                       int _fd;
-               } _sigpoll;
-       } _sifields;
-} siginfo_t;
-
-#define UID16_SIGINFO_COMPAT_NEEDED
-
-/*
- * How these fields are to be accessed.
- */
-#undef si_uid
-#ifdef __KERNEL__
-#define si_uid         _sifields._kill._uid32
-#define si_uid16       _sifields._kill._uid
-#else
-#define si_uid         _sifields._kill._uid
-#endif
-
-#ifdef __KERNEL__
-
-#include <linux/string.h>
-
-static inline void copy_siginfo(struct siginfo *to, struct siginfo *from)
-{
-       if (from->si_code < 0)
-               memcpy(to, from, sizeof(*to));
-       else
-               /* _sigchld is currently the largest know union member */
-               memcpy(to, from, 3*sizeof(int) + sizeof(from->_sifields._sigchld));
-}
-
-#endif /* __KERNEL__ */
-#endif /* !__uClinux__ */
-
 #endif