[PATCH] compat_sys_sigpending and compat_sys_sigprocmask

This creates compat_sys_sigpending and compat_sys_sigprocmask and
patches sent to maintainers remove all the arch specific versions.

diff --git a/kernel/compat.c b/kernel/compat.c
index 8a73858590bc9f2a935c52ba413e2962628d187f..0c51a4de67a8ba4bb30b3236369c82f887bf7ea0 100644 (file)
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -4,7 +4,7 @@
  *  Kernel compatibililty routines for e.g. 32 bit syscall support
  *  on 64 bit kernels.
  *
- *  Copyright (C) 2002 Stephen Rothwell, IBM Corporation
+ *  Copyright (C) 2002-2003 Stephen Rothwell, IBM Corporation
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License version 2 as
@@ -15,6 +15,7 @@
 #include <linux/compat.h>
 #include <linux/errno.h>
 #include <linux/time.h>
+#include <linux/signal.h>
 
 #include <asm/uaccess.h>
 
@@ -166,3 +167,44 @@ asmlinkage long compat_sys_times(struct compat_tms *tbuf)
        }
        return compat_jiffies_to_clock_t(jiffies);
 }
+
+/*
+ * Assumption: old_sigset_t and compat_old_sigset_t are both
+ * types that can be passed to put_user()/get_user().
+ */
+
+extern asmlinkage long sys_sigpending(old_sigset_t *);
+
+asmlinkage long compat_sys_sigpending(compat_old_sigset_t *set)
+{
+       old_sigset_t s;
+       long ret;
+       mm_segment_t old_fs = get_fs();
+
+       set_fs(KERNEL_DS);
+       ret = sys_sigpending(&s);
+       set_fs(old_fs);
+       if (ret == 0)
+               ret = put_user(s, set);
+       return ret;
+}
+
+extern asmlinkage long sys_sigprocmask(int, old_sigset_t *, old_sigset_t *);
+
+asmlinkage long compat_sys_sigprocmask(int how, compat_old_sigset_t *set,
+               compat_old_sigset_t *oset)
+{
+       old_sigset_t s;
+       long ret;
+       mm_segment_t old_fs;
+
+       if (set && get_user(s, set))
+               return -EFAULT;
+       old_fs = get_fs();
+       set_fs(KERNEL_DS);
+       ret = sys_sigprocmask(how, set ? &s : NULL, oset ? &s : NULL);
+       set_fs(old_fs);
+       if (ret == 0)
+               ret = put_user(s, oset);
+       return ret;
+}