From 5da3a65d2d1ba333d61999640ef241f150c69c6b Mon Sep 17 00:00:00 2001 From: Maxim Kuvyrkov Date: Wed, 23 Dec 2009 11:28:42 -0800 Subject: [PATCH] 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 Signed-off-by: Geert Uytterhoeven --- arch/m68k/include/asm/siginfo.h | 91 --------------------------------- 1 file changed, 91 deletions(-) diff --git a/arch/m68k/include/asm/siginfo.h b/arch/m68k/include/asm/siginfo.h index ca7dde8fd223..851d3d784b53 100644 --- 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 -#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 - -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 -- 2.20.1