Use sys_siglist[] to print out signal names for signal exits, rather

than just numbers.

configure

@@ -15600,6 +15600,68 @@ fi
 rm -f conftest.err conftest.$ac_objext \
       conftest$ac_exeext conftest.$ac_ext
 
+echo "$as_me:$LINENO: checking for sys_siglist" >&5
+echo $ECHO_N "checking for sys_siglist... $ECHO_C" >&6
+if test "${pgac_cv_var_sys_siglist+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <signal.h>
+int
+main ()
+{
+extern char *sys_siglist[]; (void)sys_siglist[0];
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  pgac_cv_var_sys_siglist=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+pgac_cv_var_sys_siglist=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $pgac_cv_var_sys_siglist" >&5
+echo "${ECHO_T}$pgac_cv_var_sys_siglist" >&6
+if test x"$pgac_cv_var_sys_siglist" = x"yes"; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_SYS_SIGLIST 1
+_ACEOF
+
+fi
+
 echo "$as_me:$LINENO: checking for syslog" >&5
 echo $ECHO_N "checking for syslog... $ECHO_C" >&6
 if test "${ac_cv_func_syslog+set}" = set; then

configure.in

 dnl Process this file with autoconf to produce a configure script.
-dnl $PostgreSQL: pgsql/configure.in,v 1.497 2007/01/18 14:07:31 petere Exp $
+dnl $PostgreSQL: pgsql/configure.in,v 1.498 2007/01/28 01:12:05 momjian Exp $
 dnl
 dnl Developers, please strive to achieve this order:
 dnl
@@ -1059,6 +1059,15 @@ AC_TRY_LINK([#include <setjmp.h>],
 AC_MSG_RESULT(yes)],
             [AC_MSG_RESULT(no)])
 
+AC_CACHE_CHECK([for sys_siglist], pgac_cv_var_sys_siglist,
+[AC_TRY_LINK([#include <signal.h>],
+  [extern char *sys_siglist[]; (void)sys_siglist[0];],
+  [pgac_cv_var_sys_siglist=yes],
+  [pgac_cv_var_sys_siglist=no])])
+if test x"$pgac_cv_var_sys_siglist" = x"yes"; then
+  AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define to 1 if you have the global variable 'char *sys_siglist[]'.])
+fi
+
 AC_CHECK_FUNC(syslog,
               [AC_CHECK_HEADER(syslog.h,
                                [AC_DEFINE(HAVE_SYSLOG, 1, [Define to 1 if you have the syslog interface.])])])

src/backend/postmaster/postmaster.c

@@ -37,7 +37,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.512 2007/01/23 03:28:49 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.513 2007/01/28 01:12:05 momjian Exp $
  *
  * NOTES
  *
@@ -2421,23 +2421,33 @@ LogChildExit(int lev, const char *procname, int pid, int exitstatus)
 				(errmsg("%s (PID %d) exited with exit code %d",
 						procname, pid, WEXITSTATUS(exitstatus))));
 	else if (WIFSIGNALED(exitstatus))
-#ifndef WIN32
+#if defined(WIN32)
 		ereport(lev,
 
 		/*------
 		  translator: %s is a noun phrase describing a child process, such as
 		  "server process" */
-				(errmsg("%s (PID %d) was terminated by signal %d",
-						procname, pid, WTERMSIG(exitstatus))));
+				(errmsg("%s (PID %d) was terminated by exception %X",
+						procname, pid, WTERMSIG(exitstatus)),
+				 errhint("See C include file \"ntstatus.h\" for a description of the hex value.")));
+#elif defined(HAVE_SYS_SIGLIST)
+		ereport(lev,
+
+		/*------
+		  translator: %s is a noun phrase describing a child process, such as
+		  "server process" */
+				(errmsg("%s (PID %d) was terminated by signal: %s (%d)",
+						procname, pid, WTERMSIG(exitstatus) < NSIG ?
+						sys_siglist[WTERMSIG(exitstatus)] : "unknown signal",
+						WTERMSIG(exitstatus))));
 #else
 		ereport(lev,
 
 		/*------
 		  translator: %s is a noun phrase describing a child process, such as
 		  "server process" */
-				(errmsg("%s (PID %d) was terminated by exception %X",
-						procname, pid, WTERMSIG(exitstatus)),
-				 errhint("See /include/ntstatus.h for a description of the hex value.")));
+				(errmsg("%s (PID %d) was terminated by signal %d",
+						procname, pid, WTERMSIG(exitstatus))));
 #endif
 	else
 		ereport(lev,

src/include/pg_config.h.in

@@ -478,6 +478,9 @@
 /* Define to 1 if you have the <sys/shm.h> header file. */
 #undef HAVE_SYS_SHM_H
 
+/* Define to 1 if you have the global variable 'char *sys_siglist[]'. */
+#undef HAVE_SYS_SIGLIST
+
 /* Define to 1 if you have the <sys/socket.h> header file. */
 #undef HAVE_SYS_SOCKET_H
 

src/port/exec.c

@@ -9,7 +9,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/port/exec.c,v 1.48 2007/01/23 03:31:33 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/port/exec.c,v 1.49 2007/01/28 01:12:05 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -582,11 +582,15 @@ pclose_check(FILE *stream)
 		log_error(_("child process exited with exit code %d"),
 				  WEXITSTATUS(exitstatus));
 	else if (WIFSIGNALED(exitstatus))
-#ifndef WIN32
-		log_error(_("child process was terminated by signal %d"),
+#if defined(WIN32)
+		log_error(_("child process was terminated by exception %X\nSee C include file \"ntstatus.h\" for a description of the hex value."),
 				  WTERMSIG(exitstatus));
+#elif defined(HAVE_SYS_SIGLIST)
+		log_error(_("child process was terminated by signal: %s"),
+					WTERMSIG(exitstatus) < NSIG ?
+					sys_siglist[WTERMSIG(exitstatus)] : "unknown signal");
 #else
-		log_error(_("child process was terminated by exception %X\nSee /include/ntstatus.h for a description of the hex value."),
+		log_error(_("child process was terminated by signal %d"),
 				  WTERMSIG(exitstatus));
 #endif
 	else