sync with glibc (and shrinks the object code nicely by like half)

1 files changed, 44 insertions, 0 deletions

diff --git a/libc/signal/sigset-cvt-mask.h b/libc/signal/sigset-cvt-mask.h
new file mode 100644
index 000000000..ca4774dbd
--- /dev/null
+++ b/libc/signal/sigset-cvt-mask.h
@@ -0,0 +1,44 @@
+/* Convert between lowlevel sigmask and libc representation of sigset_t.
+   Linux version.
+   Copyright (C) 1998, 2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Joe Keane <jgk@jgk.org>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+static inline int __attribute__ ((unused))
+sigset_set_old_mask (sigset_t *set, int mask)
+{
+  unsigned long int *ptr;
+  int cnt;
+
+  ptr = &set->__val[0];
+
+  *ptr++ = (unsigned int) mask;
+
+  cnt = _SIGSET_NWORDS - 2;
+  do
+    *ptr++ = 0ul;
+  while (--cnt >= 0);
+
+  return 0;
+}
+
+static inline int __attribute__ ((unused))
+sigset_get_old_mask (const sigset_t *set)
+{
+  return (unsigned int) set->__val[0];
+}