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Diffstat (limited to 'arch/mips/include/asm/compat-signal.h')
-rw-r--r--arch/mips/include/asm/compat-signal.h119
1 files changed, 119 insertions, 0 deletions
diff --git a/arch/mips/include/asm/compat-signal.h b/arch/mips/include/asm/compat-signal.h
new file mode 100644
index 000000000000..368a99e5c3e1
--- /dev/null
+++ b/arch/mips/include/asm/compat-signal.h
@@ -0,0 +1,119 @@
+#ifndef __ASM_COMPAT_SIGNAL_H
+#define __ASM_COMPAT_SIGNAL_H
+
+#include <linux/bug.h>
+#include <linux/compat.h>
+#include <linux/compiler.h>
+
+#include <asm/signal.h>
+#include <asm/siginfo.h>
+
+#include <asm/uaccess.h>
+
+#define SI_PAD_SIZE32 ((SI_MAX_SIZE/sizeof(int)) - 3)
+
+typedef struct compat_siginfo {
+ int si_signo;
+ int si_code;
+ int si_errno;
+
+ union {
+ int _pad[SI_PAD_SIZE32];
+
+ /* kill() */
+ struct {
+ compat_pid_t _pid; /* sender's pid */
+ compat_uid_t _uid; /* sender's uid */
+ } _kill;
+
+ /* SIGCHLD */
+ struct {
+ compat_pid_t _pid; /* which child */
+ compat_uid_t _uid; /* sender's uid */
+ int _status; /* exit code */
+ compat_clock_t _utime;
+ compat_clock_t _stime;
+ } _sigchld;
+
+ /* IRIX SIGCHLD */
+ struct {
+ compat_pid_t _pid; /* which child */
+ compat_clock_t _utime;
+ int _status; /* exit code */
+ compat_clock_t _stime;
+ } _irix_sigchld;
+
+ /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
+ struct {
+ s32 _addr; /* faulting insn/memory ref. */
+ } _sigfault;
+
+ /* SIGPOLL, SIGXFSZ (To do ...) */
+ struct {
+ int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
+ int _fd;
+ } _sigpoll;
+
+ /* POSIX.1b timers */
+ struct {
+ timer_t _tid; /* timer id */
+ int _overrun; /* overrun count */
+ compat_sigval_t _sigval;/* same as below */
+ int _sys_private; /* not to be passed to user */
+ } _timer;
+
+ /* POSIX.1b signals */
+ struct {
+ compat_pid_t _pid; /* sender's pid */
+ compat_uid_t _uid; /* sender's uid */
+ compat_sigval_t _sigval;
+ } _rt;
+
+ } _sifields;
+} compat_siginfo_t;
+
+static inline int __copy_conv_sigset_to_user(compat_sigset_t __user *d,
+ const sigset_t *s)
+{
+ int err;
+
+ BUG_ON(sizeof(*d) != sizeof(*s));
+ BUG_ON(_NSIG_WORDS != 2);
+
+ err = __put_user(s->sig[0], &d->sig[0]);
+ err |= __put_user(s->sig[0] >> 32, &d->sig[1]);
+ err |= __put_user(s->sig[1], &d->sig[2]);
+ err |= __put_user(s->sig[1] >> 32, &d->sig[3]);
+
+ return err;
+}
+
+static inline int __copy_conv_sigset_from_user(sigset_t *d,
+ const compat_sigset_t __user *s)
+{
+ int err;
+ union sigset_u {
+ sigset_t s;
+ compat_sigset_t c;
+ } *u = (union sigset_u *) d;
+
+ BUG_ON(sizeof(*d) != sizeof(*s));
+ BUG_ON(_NSIG_WORDS != 2);
+
+#ifdef CONFIG_CPU_BIG_ENDIAN
+ err = __get_user(u->c.sig[1], &s->sig[0]);
+ err |= __get_user(u->c.sig[0], &s->sig[1]);
+ err |= __get_user(u->c.sig[3], &s->sig[2]);
+ err |= __get_user(u->c.sig[2], &s->sig[3]);
+#endif
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+ err = __get_user(u->c.sig[0], &s->sig[0]);
+ err |= __get_user(u->c.sig[1], &s->sig[1]);
+ err |= __get_user(u->c.sig[2], &s->sig[2]);
+ err |= __get_user(u->c.sig[3], &s->sig[3]);
+#endif
+
+ return err;
+}
+
+#endif /* __ASM_COMPAT_SIGNAL_H */