120 lines
2.6 KiB
C
120 lines
2.6 KiB
C
#ifndef __ASM_COMPAT_SIGNAL_H
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#define __ASM_COMPAT_SIGNAL_H
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#include <linux/bug.h>
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#include <linux/compat.h>
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#include <linux/compiler.h>
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#include <asm/signal.h>
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#include <asm/siginfo.h>
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#include <asm/uaccess.h>
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#define SI_PAD_SIZE32 ((SI_MAX_SIZE/sizeof(int)) - 3)
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typedef struct compat_siginfo {
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int si_signo;
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int si_code;
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int si_errno;
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union {
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int _pad[SI_PAD_SIZE32];
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/* kill() */
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struct {
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compat_pid_t _pid; /* sender's pid */
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compat_uid_t _uid; /* sender's uid */
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} _kill;
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/* SIGCHLD */
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struct {
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compat_pid_t _pid; /* which child */
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compat_uid_t _uid; /* sender's uid */
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int _status; /* exit code */
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compat_clock_t _utime;
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compat_clock_t _stime;
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} _sigchld;
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/* IRIX SIGCHLD */
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struct {
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compat_pid_t _pid; /* which child */
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compat_clock_t _utime;
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int _status; /* exit code */
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compat_clock_t _stime;
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} _irix_sigchld;
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/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
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struct {
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s32 _addr; /* faulting insn/memory ref. */
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} _sigfault;
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/* SIGPOLL, SIGXFSZ (To do ...) */
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struct {
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int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
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int _fd;
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} _sigpoll;
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/* POSIX.1b timers */
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struct {
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timer_t _tid; /* timer id */
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int _overrun; /* overrun count */
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compat_sigval_t _sigval;/* same as below */
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int _sys_private; /* not to be passed to user */
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} _timer;
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/* POSIX.1b signals */
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struct {
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compat_pid_t _pid; /* sender's pid */
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compat_uid_t _uid; /* sender's uid */
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compat_sigval_t _sigval;
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} _rt;
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} _sifields;
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} compat_siginfo_t;
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static inline int __copy_conv_sigset_to_user(compat_sigset_t __user *d,
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const sigset_t *s)
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{
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int err;
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BUG_ON(sizeof(*d) != sizeof(*s));
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BUG_ON(_NSIG_WORDS != 2);
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err = __put_user(s->sig[0], &d->sig[0]);
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err |= __put_user(s->sig[0] >> 32, &d->sig[1]);
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err |= __put_user(s->sig[1], &d->sig[2]);
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err |= __put_user(s->sig[1] >> 32, &d->sig[3]);
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return err;
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}
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static inline int __copy_conv_sigset_from_user(sigset_t *d,
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const compat_sigset_t __user *s)
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{
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int err;
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union sigset_u {
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sigset_t s;
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compat_sigset_t c;
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} *u = (union sigset_u *) d;
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BUG_ON(sizeof(*d) != sizeof(*s));
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BUG_ON(_NSIG_WORDS != 2);
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#ifdef CONFIG_CPU_BIG_ENDIAN
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err = __get_user(u->c.sig[1], &s->sig[0]);
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err |= __get_user(u->c.sig[0], &s->sig[1]);
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err |= __get_user(u->c.sig[3], &s->sig[2]);
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err |= __get_user(u->c.sig[2], &s->sig[3]);
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#endif
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#ifdef CONFIG_CPU_LITTLE_ENDIAN
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err = __get_user(u->c.sig[0], &s->sig[0]);
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err |= __get_user(u->c.sig[1], &s->sig[1]);
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err |= __get_user(u->c.sig[2], &s->sig[2]);
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err |= __get_user(u->c.sig[3], &s->sig[3]);
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#endif
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return err;
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}
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#endif /* __ASM_COMPAT_SIGNAL_H */
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