gen-num-limits.cc (set_signals_handler): New function.

        * src/gen-num-limits.cc (set_signals_handler): New function.
        Factor out signals setting.  Set signal handler for SIGILL.

Co-Authored-By: Bert De Knuydt <Bert.Deknuydt@esat.kuleuven.ac.be>

From-SVN: r44139

libstdc++-v3/ChangeLog

+2001-07-19  Gabriel Dos Reis  <gdr@merlin.codesourcery.com>
+	    Bert De Knuydt <Bert.Deknuydt@esat.kuleuven.ac.be>
+
+	* src/gen-num-limits.cc (set_signals_handler): New function.
+	Factor out signals setting.  Set signal handler for SIGILL.
+
 2001-07-18  Phil Edwards  <pme@sources.redhat.com>
 
 	* docs/html/27_io/howto.html:  Fix typo.

libstdc++-v3/src/gen-num-limits.cc

@@ -157,15 +157,23 @@ template<typename T>
 
 template<typename T> struct underflow { };
 
+
+// Set various signals handler for trapping aritmetic ops.
+void set_signals_handler()
+{
+  signal_adapter(signal, SIGFPE, signal_handler);
+  signal_adapter(signal, SIGTRAP, signal_handler);
+  // This is necessary for Linux/SPARC.
+  signal_adapter(signal, SIGILL, signal_handler);
+}
+
 // traps
 template<typename T> void traps()
 {
   fflush(NULL);
-  signal_adapter (signal, SIGFPE, signal_handler);
-  signal_adapter (signal, SIGTRAP, signal_handler);
+  set_signals_handler();
   bool trap_flag = trapping(division_by_zero<T>());
-  signal_adapter (signal, SIGFPE, signal_handler);
-  signal_adapter (signal, SIGTRAP, signal_handler);
+  set_signals_handler();
   trap_flag = trap_flag || trapping(overflow<T>());
   const char* p = bool_alpha[trap_flag];
   printf("%s%s = %s;\n", tab2, "static const bool traps", p);    
@@ -175,8 +183,7 @@ template<typename T> void traps()
 template<> void traps< T >()                                            \
 {       								\
   fflush(NULL);                                                         \
-  signal_adapter (signal, SIGFPE, signal_handler);                      \
-  signal_adapter (signal, SIGTRAP, signal_handler);                     \
+  set_signals_handler();                                                \
   const char* p = bool_alpha[trapping(division_by_zero<T>())];          \
   printf("%s%s = %s;\n", tab2, "static const bool traps", p);           \
 }