/* Signal support for 32-bit kernel builds
*
* Copyright (C) 2001 Matthew Wilcox <willy at parisc-linux.org>
+ * Copyright (C) 2006 Kyle McMartin <kyle at parisc-linux.org>
+ *
* Code was mostly borrowed from kernel/signal.c.
* See kernel/signal.c for additional Copyrights.
*
*/
#include <linux/compat.h>
-#include <linux/slab.h>
#include <linux/module.h>
#include <linux/unistd.h>
-#include <linux/smp_lock.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/syscalls.h>
&sc->sc_iaoq[0], compat_reg);
/* Store upper half */
- compat_reg = (compat_uint_t)(regs->gr[32] >> 32);
+ compat_reg = (compat_uint_t)(regs->gr[31] >> 32);
err |= __put_user(compat_reg, &rf->rf_iaoq[0]);
DBG(2,"setup_sigcontext32: upper half iaoq[0] = %#x\n", compat_reg);
DBG(2,"setup_sigcontext32: sc->sc_iaoq[1] = %p <= %#x\n",
&sc->sc_iaoq[1], compat_reg);
/* Store upper half */
- compat_reg = (compat_uint_t)((regs->gr[32]+4) >> 32);
+ compat_reg = (compat_uint_t)((regs->gr[31]+4) >> 32);
err |= __put_user(compat_reg, &rf->rf_iaoq[1]);
DBG(2,"setup_sigcontext32: upper half iaoq[1] = %#x\n", compat_reg);
int
copy_siginfo_from_user32 (siginfo_t *to, compat_siginfo_t __user *from)
{
- unsigned long tmp;
+ compat_uptr_t addr;
int err;
if (!access_ok(VERIFY_READ, from, sizeof(compat_siginfo_t)))
err |= __get_user(to->si_uid, &from->si_uid);
break;
case __SI_FAULT >> 16:
- err |= __get_user(tmp, &from->si_addr);
- to->si_addr = (void __user *) tmp;
+ err |= __get_user(addr, &from->si_addr);
+ to->si_addr = compat_ptr(addr);
break;
case __SI_POLL >> 16:
err |= __get_user(to->si_band, &from->si_band);
int
copy_siginfo_to_user32 (compat_siginfo_t __user *to, siginfo_t *from)
{
- unsigned int addr;
+ compat_uptr_t addr;
+ compat_int_t val;
int err;
if (!access_ok(VERIFY_WRITE, to, sizeof(compat_siginfo_t)))
err |= __put_user(from->si_uid, &to->si_uid);
break;
case __SI_FAULT >> 16:
- /* avoid type-checking warnings by copying _pad[0] in lieu of si_addr... */
- err |= __put_user(from->_sifields._pad[0], &to->si_addr);
+ addr = ptr_to_compat(from->si_addr);
+ err |= __put_user(addr, &to->si_addr);
break;
case __SI_POLL >> 16:
err |= __put_user(from->si_band, &to->si_band);
case __SI_TIMER >> 16:
err |= __put_user(from->si_tid, &to->si_tid);
err |= __put_user(from->si_overrun, &to->si_overrun);
- addr = (unsigned long) from->si_ptr;
- err |= __put_user(addr, &to->si_ptr);
+ val = (compat_int_t)from->si_int;
+ err |= __put_user(val, &to->si_int);
break;
case __SI_RT >> 16: /* Not generated by the kernel as of now. */
case __SI_MESGQ >> 16:
err |= __put_user(from->si_uid, &to->si_uid);
err |= __put_user(from->si_pid, &to->si_pid);
- addr = (unsigned long) from->si_ptr;
- err |= __put_user(addr, &to->si_ptr);
+ val = (compat_int_t)from->si_int;
+ err |= __put_user(val, &to->si_int);
break;
}
}
return err;
}
+
+asmlinkage long compat_sys_rt_sigqueueinfo(int pid, int sig,
+ struct compat_siginfo __user *uinfo)
+{
+ siginfo_t info;
+
+ if (copy_siginfo_from_user32(&info, uinfo))
+ return -EFAULT;
+
+ /* Not even root can pretend to send signals from the kernel.
+ Nor can they impersonate a kill(), which adds source info. */
+ if (info.si_code >= 0)
+ return -EPERM;
+ info.si_signo = sig;
+
+ /* POSIX.1b doesn't mention process groups. */
+ return kill_proc_info(sig, &info, pid);
+}
+