2010-05-11 Joel Sherrill <joel.sherrill@oarcorp.com>

        * libc/string/strsignal.c: New file.
        * libc/string/Makefile.am: Add support for strsignal.
        * libc/string/strings.tex: Ditto.
        * libc/string/Makefile.in: Regenerated.

1 files changed, 256 insertions, 0 deletions

diff --git a/newlib/libc/string/strsignal.c b/newlib/libc/string/strsignal.c
new file mode 100644
index 000000000..6d39e8b75
--- /dev/null
+++ b/newlib/libc/string/strsignal.c
@@ -0,0 +1,256 @@
+/*
+FUNCTION
+	<<strsignal>>---convert signal number to string
+
+INDEX
+	strsignal
+
+ANSI_SYNOPSIS
+	#include <string.h>
+	char *strsignal(int <[signal]>);
+
+TRAD_SYNOPSIS
+	#include <string.h>
+	char *strsignal(<[signal]>)
+	int <[signal]>;
+
+DESCRIPTION
+<<strsignal>> converts the signal number <[signal]> into a
+string.  If <[signal]> is not a known signal number, the result
+will be of the form "Unknown signal NN" where NN is the <[signal]>
+is a decimal number.
+
+RETURNS
+This function returns a pointer to a string.  Your application must
+not modify that string.
+
+PORTABILITY
+POSIX.1-2008 C requires <<strsignal>>, but does not specify the strings used
+for each signal number.
+
+<<strsignal>> requires no supporting OS subroutines.
+
+QUICKREF
+	strsignal pure
+*/
+
+/*
+ *  Written by Joel Sherrill <joel.sherrill@OARcorp.com>.
+ *
+ *  COPYRIGHT (c) 2010.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  Permission to use, copy, modify, and distribute this software for any
+ *  purpose without fee is hereby granted, provided that this entire notice
+ *  is included in all copies of any software which is or includes a copy
+ *  or modification of this software.
+ *
+ *  THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
+ *  WARRANTY.  IN PARTICULAR,  THE AUTHOR MAKES NO REPRESENTATION
+ *  OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY OF THIS
+ *  SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
+ *
+ *  $Id$
+ */
+
+#include <string.h>
+#include <signal.h>
+#include <stdio.h>
+#include <reent.h>
+
+char *
+_DEFUN (strsignal, (signal),
+	int signal)
+{
+  char *buffer;
+  struct _reent *ptr;
+
+  ptr = _REENT;
+
+  _REENT_CHECK_SIGNAL_BUF(ptr);
+  buffer = _REENT_SIGNAL_BUF(ptr);
+
+#if defined(SIGRTMIN) && defined(SIGRTMAX)
+  if ((signal >= SIGRTMIN) || (signal <= SIGRTMAX)) {
+    siprintf (buffer, "Real-time signal %d", signal - SIGRTMIN);
+    return buffer;
+  }
+#endif
+
+  switch (signal) {
+#ifdef SIGHUP
+    case SIGHUP:
+      buffer = "Hangup";
+      break;
+#endif
+#ifdef SIGINT
+    case SIGINT:
+      buffer = "Interrupt";
+      break;
+#endif
+#ifdef SIGQUIT
+    case SIGQUIT:
+      buffer = "Quit";
+      break;
+#endif
+#ifdef SIGILL
+    case SIGILL:
+      buffer = "Illegal instruction";
+      break;
+#endif
+#ifdef SIGTRAP
+    case SIGTRAP:
+      buffer = "Trace/breakpoint trap";
+      break;
+#endif
+#ifdef SIGIOT
+  #if  defined(SIGABRT) && (SIGIOT != SIGABRT)
+    case SIGABRT:
+  #endif
+    case SIGIOT:
+      buffer = "IOT trap";
+      break;
+#endif
+#ifdef SIGEMT
+    case SIGEMT:
+      buffer = "EMT trap";
+      break;
+#endif
+#ifdef SIGFPE
+    case SIGFPE:
+      buffer = "Floating point exception";
+      break;
+#endif
+#ifdef SIGKILL
+    case SIGKILL:
+      buffer = "Killed";
+      break;
+#endif
+#ifdef SIGBUS
+    case SIGBUS:
+      buffer = "Bus error";
+      break;
+#endif
+#ifdef SIGSEGV
+    case SIGSEGV:
+      buffer = "Segmentation fault";
+      break;
+#endif
+#ifdef SIGSYS
+    case SIGSYS:
+      buffer = "Bad system call";
+      break;
+#endif
+#ifdef SIGPIPE
+    case SIGPIPE:
+      buffer = "Broken pipe";
+      break;
+#endif
+#ifdef SIGALRM
+    case SIGALRM:
+      buffer = "Alarm clock";
+      break;
+#endif
+#ifdef SIGTERM
+    case SIGTERM:
+      buffer = "Terminated";
+      break;
+#endif
+#ifdef SIGURG
+    case SIGURG:
+      buffer = "Urgent I/O condition";
+      break;
+#endif
+#ifdef SIGSTOP
+    case SIGSTOP:
+      buffer = "Stopped (signal)";
+      break;
+#endif
+#ifdef SIGTSTP
+    case SIGTSTP:
+      buffer = "Stopped";
+      break;
+#endif
+#ifdef SIGCONT
+    case SIGCONT:
+      buffer = "Continued";
+      break;
+#endif
+#ifdef SIGCHLD
+  #if  defined(SIGCLD) && (SIGCHLD != SIGCLD)
+    case SIGCLD:
+  #endif
+    case SIGCHLD:
+      buffer = "Child exited";
+      break;
+#endif
+#ifdef SIGTTIN
+    case SIGTTIN:
+      buffer = "Stopped (tty input)";
+      break;
+#endif
+#ifdef SIGTTOUT
+    case SIGTTOUT:
+      buffer = "Stopped (tty output)";
+      break;
+#endif
+#ifdef SIGIO
+  #if  defined(SIGPOLL) && (SIGIO != SIGPOLL)
+    case SIGPOLL:
+  #endif
+    case SIGIO:
+      buffer = "I/O possible";
+      break;
+#endif
+#ifdef SIGWINCH
+    case SIGWINCH:
+      buffer = "Window changed";
+      break;
+#endif
+#ifdef SIGUSR1
+    case SIGUSR1:
+      buffer = "User defined signal 1";
+      break;
+#endif
+#ifdef SIGUSR2
+    case SIGUSR2:
+      buffer = "User defined signal 2";
+      break;
+#endif
+#ifdef SIGPWR
+    case SIGPWR:
+      buffer = "Power Failure";
+      break;
+#endif
+#ifdef SIGXCPU
+    case SIGXCPU:
+      buffer = "CPU time limit exceeded";
+      break;
+#endif
+#ifdef SIGXFSZ
+    case SIGXFSZ:
+      buffer = "File size limit exceeded";
+      break;
+#endif
+#ifdef SIGVTALRM 
+    case SIGVTALRM :
+      buffer = "Virtual timer expired";
+      break;
+#endif
+#ifdef SIGPROF
+    case SIGPROF:
+      buffer = "Profiling timer expired";
+      break;
+#endif
+#ifdef SIGLOST
+    case SIGLOST:
+      buffer = "Resource lost";
+      break;
+#endif
+    default:
+      siprintf (buffer, "Unknown signal %d", signal);
+      break;
+  }
+
+  return buffer;
+}