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-rw-r--r--bits/signum.h72
1 files changed, 10 insertions, 62 deletions
diff --git a/bits/signum.h b/bits/signum.h
index 9fccd9c70c..bd9fe29cff 100644
--- a/bits/signum.h
+++ b/bits/signum.h
@@ -1,5 +1,5 @@
/* Signal number constants. Generic version.
- Copyright (C) 1991-2016 Free Software Foundation, Inc.
+ Copyright (C) 2017-2018 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
@@ -16,69 +16,17 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-#ifdef _SIGNAL_H
+#ifndef _BITS_SIGNUM_H
+#define _BITS_SIGNUM_H 1
-/* Fake signal functions. */
-
-#define SIG_ERR ((__sighandler_t) -1) /* Error return. */
-#define SIG_DFL ((__sighandler_t) 0) /* Default action. */
-#define SIG_IGN ((__sighandler_t) 1) /* Ignore signal. */
-
-#ifdef __USE_UNIX98
-# define SIG_HOLD ((__sighandler_t) 2) /* Add signal to hold mask. */
+#ifndef _SIGNAL_H
+#error "Never include <bits/signum.h> directly; use <signal.h> instead."
#endif
-/* We define here all the signal names listed in POSIX (1003.1-2008);
- as of 1003.1-2013, no additional signals have been added by POSIX.
- We also define here signal names that historically exist in every
- real-world POSIX variant (e.g. SIGWINCH).
-
- Signals in the 1-15 range are defined with their historical numbers.
- For other signals, we use the BSD numbers. */
-
-/* ISO C99 signals. */
-#define SIGINT 2 /* Interactive attention signal. */
-#define SIGILL 4 /* Illegal instruction. */
-#define SIGABRT 6 /* Abnormal termination. */
-#define SIGFPE 8 /* Erroneous arithmetic operation. */
-#define SIGSEGV 11 /* Invalid access to storage. */
-#define SIGTERM 15 /* Termination request. */
-
-/* Historical signals specified by POSIX. */
-#define SIGHUP 1 /* Hangup. */
-#define SIGQUIT 3 /* Quit. */
-#define SIGTRAP 5 /* Trace/breakpoint trap. */
-#define SIGKILL 9 /* Killed. */
-#define SIGBUS 10 /* Bus error. */
-#define SIGSYS 12 /* Bad system call. */
-#define SIGPIPE 13 /* Broken pipe. */
-#define SIGALRM 14 /* Alarm clock. */
-
-/* New(er) POSIX signals (1003.1-2008, 1003.1-2013). */
-#define SIGURG 16 /* High bandwidth data is available at a socket. */
-#define SIGSTOP 17 /* Stopped (signal). */
-#define SIGTSTP 18 /* Stopped. */
-#define SIGCONT 19 /* Continued. */
-#define SIGCHLD 20 /* Child terminated or stopped. */
-#define SIGTTIN 21 /* Background read from control terminal. */
-#define SIGTTOU 22 /* Background write to control terminal. */
-#define SIGPOLL 23 /* Pollable event occurred (System V). */
-#define SIGIO SIGPOLL /* I/O now possible (4.2 BSD). */
-#define SIGXCPU 24 /* CPU time limit exceeded. */
-#define SIGXFSZ 25 /* File size limit exceeded. */
-#define SIGVTALRM 26 /* Virtual timer expired. */
-#define SIGPROF 27 /* Profiling timer expired. */
-#define SIGUSR1 30 /* User-defined signal 1. */
-#define SIGUSR2 31 /* User-defined signal 2. */
-
-/* Nonstandard signals found in all modern POSIX systems
- (including both BSD and Linux). */
-#define SIGWINCH 28 /* Window size change (4.3 BSD, Sun). */
-
-#define _NSIG 32
+#include <bits/signum-generic.h>
-/* Archaic names for compatibility. */
-#define SIGIOT SIGABRT /* IOT instruction, abort() on a PDP-11. */
-#define SIGCLD SIGCHLD /* Old System V name */
+/* This operating system does not need to override any of the generic
+ signal number assignments in bits/signum-generic.h, nor to add any
+ additional signal constants. */
-#endif /* <signal.h> included. */
+#endif /* bits/signum.h. */