#include <linux/timex.h>
#include <linux/migrate.h>
#include <linux/posix-timers.h>
+#include <linux/times.h>
+#include <linux/ptrace.h>
+#include <linux/gfp.h>
#include <asm/uaccess.h>
+/*
+ * Note that the native side is already converted to a timespec, because
+ * that's what we want anyway.
+ */
+static int compat_get_timeval(struct timespec *o,
+ struct compat_timeval __user *i)
+{
+ long usec;
+
+ if (get_user(o->tv_sec, &i->tv_sec) ||
+ get_user(usec, &i->tv_usec))
+ return -EFAULT;
+ o->tv_nsec = usec * 1000;
+ return 0;
+}
+
+static int compat_put_timeval(struct compat_timeval __user *o,
+ struct timeval *i)
+{
+ return (put_user(i->tv_sec, &o->tv_sec) ||
+ put_user(i->tv_usec, &o->tv_usec)) ? -EFAULT : 0;
+}
+
+asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,
+ struct timezone __user *tz)
+{
+ if (tv) {
+ struct timeval ktv;
+ do_gettimeofday(&ktv);
+ if (compat_put_timeval(tv, &ktv))
+ return -EFAULT;
+ }
+ if (tz) {
+ if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
+ struct timezone __user *tz)
+{
+ struct timespec kts;
+ struct timezone ktz;
+
+ if (tv) {
+ if (compat_get_timeval(&kts, tv))
+ return -EFAULT;
+ }
+ if (tz) {
+ if (copy_from_user(&ktz, tz, sizeof(ktz)))
+ return -EFAULT;
+ }
+
+ return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
+}
+
int get_compat_timespec(struct timespec *ts, const struct compat_timespec __user *cts)
{
return (!access_ok(VERIFY_READ, cts, sizeof(*cts)) ||
return 0;
}
+static compat_clock_t clock_t_to_compat_clock_t(clock_t x)
+{
+ return compat_jiffies_to_clock_t(clock_t_to_jiffies(x));
+}
+
asmlinkage long compat_sys_times(struct compat_tms __user *tbuf)
{
- /*
- * In the SMP world we might just be unlucky and have one of
- * the times increment as we use it. Since the value is an
- * atomically safe type this is just fine. Conceptually its
- * as if the syscall took an instant longer to occur.
- */
if (tbuf) {
+ struct tms tms;
struct compat_tms tmp;
- struct task_struct *tsk = current;
- struct task_struct *t;
- cputime_t utime, stime, cutime, cstime;
-
- read_lock(&tasklist_lock);
- utime = tsk->signal->utime;
- stime = tsk->signal->stime;
- t = tsk;
- do {
- utime = cputime_add(utime, t->utime);
- stime = cputime_add(stime, t->stime);
- t = next_thread(t);
- } while (t != tsk);
-
- /*
- * While we have tasklist_lock read-locked, no dying thread
- * can be updating current->signal->[us]time. Instead,
- * we got their counts included in the live thread loop.
- * However, another thread can come in right now and
- * do a wait call that updates current->signal->c[us]time.
- * To make sure we always see that pair updated atomically,
- * we take the siglock around fetching them.
- */
- spin_lock_irq(&tsk->sighand->siglock);
- cutime = tsk->signal->cutime;
- cstime = tsk->signal->cstime;
- spin_unlock_irq(&tsk->sighand->siglock);
- read_unlock(&tasklist_lock);
-
- tmp.tms_utime = compat_jiffies_to_clock_t(cputime_to_jiffies(utime));
- tmp.tms_stime = compat_jiffies_to_clock_t(cputime_to_jiffies(stime));
- tmp.tms_cutime = compat_jiffies_to_clock_t(cputime_to_jiffies(cutime));
- tmp.tms_cstime = compat_jiffies_to_clock_t(cputime_to_jiffies(cstime));
+
+ do_sys_times(&tms);
+ /* Convert our struct tms to the compat version. */
+ tmp.tms_utime = clock_t_to_compat_clock_t(tms.tms_utime);
+ tmp.tms_stime = clock_t_to_compat_clock_t(tms.tms_stime);
+ tmp.tms_cutime = clock_t_to_compat_clock_t(tms.tms_cutime);
+ tmp.tms_cstime = clock_t_to_compat_clock_t(tms.tms_cstime);
if (copy_to_user(tbuf, &tmp, sizeof(tmp)))
return -EFAULT;
}
+ force_successful_syscall_return();
return compat_jiffies_to_clock_t(jiffies);
}
}
static int compat_get_user_cpu_mask(compat_ulong_t __user *user_mask_ptr,
- unsigned len, cpumask_t *new_mask)
+ unsigned len, struct cpumask *new_mask)
{
unsigned long *k;
- if (len < sizeof(cpumask_t))
- memset(new_mask, 0, sizeof(cpumask_t));
- else if (len > sizeof(cpumask_t))
- len = sizeof(cpumask_t);
+ if (len < cpumask_size())
+ memset(new_mask, 0, cpumask_size());
+ else if (len > cpumask_size())
+ len = cpumask_size();
- k = cpus_addr(*new_mask);
+ k = cpumask_bits(new_mask);
return compat_get_bitmap(k, user_mask_ptr, len * 8);
}
unsigned int len,
compat_ulong_t __user *user_mask_ptr)
{
- cpumask_t new_mask;
+ cpumask_var_t new_mask;
int retval;
- retval = compat_get_user_cpu_mask(user_mask_ptr, len, &new_mask);
+ if (!alloc_cpumask_var(&new_mask, GFP_KERNEL))
+ return -ENOMEM;
+
+ retval = compat_get_user_cpu_mask(user_mask_ptr, len, new_mask);
if (retval)
- return retval;
+ goto out;
- return sched_setaffinity(pid, &new_mask);
+ retval = sched_setaffinity(pid, new_mask);
+out:
+ free_cpumask_var(new_mask);
+ return retval;
}
asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid, unsigned int len,
compat_ulong_t __user *user_mask_ptr)
{
int ret;
- cpumask_t mask;
- unsigned long *k;
- unsigned int min_length = sizeof(cpumask_t);
-
- if (NR_CPUS <= BITS_PER_COMPAT_LONG)
- min_length = sizeof(compat_ulong_t);
+ cpumask_var_t mask;
- if (len < min_length)
+ if ((len * BITS_PER_BYTE) < nr_cpu_ids)
+ return -EINVAL;
+ if (len & (sizeof(compat_ulong_t)-1))
return -EINVAL;
- ret = sched_getaffinity(pid, &mask);
- if (ret < 0)
- return ret;
+ if (!alloc_cpumask_var(&mask, GFP_KERNEL))
+ return -ENOMEM;
- k = cpus_addr(mask);
- ret = compat_put_bitmap(user_mask_ptr, k, min_length * 8);
- if (ret)
- return ret;
+ ret = sched_getaffinity(pid, mask);
+ if (ret == 0) {
+ size_t retlen = min_t(size_t, len, cpumask_size());
+
+ if (compat_put_bitmap(user_mask_ptr, cpumask_bits(mask), retlen * 8))
+ ret = -EFAULT;
+ else
+ ret = retlen;
+ }
+ free_cpumask_var(mask);
- return min_length;
+ return ret;
}
int get_compat_itimerspec(struct itimerspec *dst,
}
+asmlinkage long
+compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig,
+ struct compat_siginfo __user *uinfo)
+{
+ siginfo_t info;
+
+ if (copy_siginfo_from_user32(&info, uinfo))
+ return -EFAULT;
+ return do_rt_tgsigqueueinfo(tgid, pid, sig, &info);
+}
+
#ifdef __ARCH_WANT_COMPAT_SYS_TIME
/* compat_time_t is a 32 bit "long" and needs to get converted. */
if (tloc) {
if (put_user(i,tloc))
- i = -EFAULT;
+ return -EFAULT;
}
+ force_successful_syscall_return();
return i;
}
current->state = TASK_INTERRUPTIBLE;
schedule();
- set_thread_flag(TIF_RESTORE_SIGMASK);
+ set_restore_sigmask();
return -ERESTARTNOHAND;
}
#endif /* __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND */
__put_user(txc.jitcnt, &utp->jitcnt) ||
__put_user(txc.calcnt, &utp->calcnt) ||
__put_user(txc.errcnt, &utp->errcnt) ||
- __put_user(txc.stbcnt, &utp->stbcnt))
+ __put_user(txc.stbcnt, &utp->stbcnt) ||
+ __put_user(txc.tai, &utp->tai))
ret = -EFAULT;
return ret;
return 0;
}
-