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-rw-r--r--bits/sigstack.h36
1 files changed, 7 insertions, 29 deletions
diff --git a/bits/sigstack.h b/bits/sigstack.h
index b4b911e7d1..d3bcbd48e6 100644
--- a/bits/sigstack.h
+++ b/bits/sigstack.h
@@ -1,5 +1,5 @@
/* sigstack, sigaltstack definitions.
- Copyright (C) 1998-2016 Free Software Foundation, Inc.
+ Copyright (C) 1998-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -16,39 +16,17 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-#ifndef _SIGNAL_H
+#ifndef _BITS_SIGSTACK_H
+#define _BITS_SIGSTACK_H 1
+
+#if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H
# error "Never include this file directly. Use <signal.h> instead"
#endif
-
-/* Structure describing a signal stack (obsolete). */
-struct sigstack
- {
- __ptr_t ss_sp; /* Signal stack pointer. */
- int ss_onstack; /* Nonzero if executing on this stack. */
- };
-
-
-/* Alternate, preferred interface. */
-typedef struct sigaltstack
- {
- __ptr_t ss_sp;
- size_t ss_size;
- int ss_flags;
- } stack_t;
-
-
-/* Possible values for `ss_flags.'. */
-enum
-{
- SS_ONSTACK = 0x0001,
-#define SS_ONSTACK SS_ONSTACK
- SS_DISABLE = 0x0004
-#define SS_DISABLE SS_DISABLE
-};
-
/* Minumum stack size for a signal handler. */
#define MINSIGSTKSZ 8192
/* System default stack size. */
#define SIGSTKSZ (MINSIGSTKSZ + 32768)
+
+#endif /* bits/sigstack.h */