From 6ce7ab198a85eb94b3ba9733a2b824203611e151 Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Thu, 16 Jul 1998 23:08:48 +0000
Subject: Update.

1998-07-16 23:06  Ulrich Drepper  <drepper@cygnus.com>

	* debug/Makefile (distribute): Add sigcontextinfo.h.
	Add rules to generate and install catchsegv.
	* debug/catchsegv.sh: New file.
---
 debug/Makefile     | 13 ++++++++-
 debug/catchsegv.sh | 84 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 96 insertions(+), 1 deletion(-)
 create mode 100755 debug/catchsegv.sh

(limited to 'debug')

diff --git a/debug/Makefile b/debug/Makefile
index 3ee7a9f..0826b99 100644
--- a/debug/Makefile
+++ b/debug/Makefile
@@ -22,6 +22,7 @@
 subdir	:= debug
 
 headers	:= execinfo.h
+distribute = sigcontextinfo.h
 
 routines := backtrace backtracesyms backtracesymsfd
 
@@ -29,14 +30,24 @@ CFLAGS-backtrace.c = -fno-omit-frame-pointer
 
 tests = backtrace-tst
 
-extra-libs	= libSegFault
+extra-libs = libSegFault
 extra-libs-others = $(extra-libs)
 
 libSegFault-routines = segfault
 libSegFault-inhibit-o = $(filter-out .os,$(object-suffixes))
 
+distribute += catchsegv.sh
+install-bin = catchsegv
+generated = catchsegv
+
 include ../Rules
 
+$(objpfx)catchsegv: catchsegv.sh $(common-objpfx)soversions.mk \
+		    $(common-objpfx)config.make
+	sed 's/@VERSION@/$(version)/;s/@SLIB@/$(slibdir)/' $< > $@.new
+	chmod 555 $@.new
+	mv -f $@.new $@
+
 # Depend on libc.so so a DT_NEEDED is generated in the shared objects.
 # This ensures they will load libc.so for needed symbols if loaded by
 # a statically-linked program that hasn't already loaded it.
diff --git a/debug/catchsegv.sh b/debug/catchsegv.sh
new file mode 100755
index 0000000..765242e
--- /dev/null
+++ b/debug/catchsegv.sh
@@ -0,0 +1,84 @@
+#! /bin/sh
+
+# Copyright (C) 1998 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+# Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Library General Public License as
+# published by the Free Software Foundation; either version 2 of the
+# License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Library General Public License for more details.
+
+# You should have received a copy of the GNU Library General Public
+# License along with the GNU C Library; see the file COPYING.LIB.  If not,
+# write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+
+prog="$1"
+shift
+args="$*"
+
+if test $# -eq 0; then
+  case "$args" in
+    --h | --he | --hel | --help)
+      echo 'Usage: catchsegv PROGRAM ARGS...'
+      echo '  --help      print this help, then exit'
+      echo '  --version   print version number, then exit'
+      echo "Report bugs using the \`glibcbug' script to <bugs@gnu.org>."
+      exit 0
+      ;;
+    --v | --ve | --ver | --vers | --versi | --versio | --version)
+      echo 'catchsegv (GNU libc) @VERSION@'
+      echo 'Copyright (C) 1998 Free Software Foundation, Inc.
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+Written by Ulrich Drepper.'
+      exit 0
+      ;;
+    *)
+      ;;
+  esac
+fi
+
+LD_PRELOAD="${LD_PRELOAD:+${LD_PRELOAD}:}@SLIB@/libSegFault.so"
+export LD_PRELOAD
+SEGFAULT_USE_ALTSTACK=1
+export SEGFAULT_USE_ALTSTACK
+SEGFAULT_OUTPUT_NAME="$prog.segv.$$"
+export SEGFAULT_OUTPUT_NAME
+
+$prog $args
+exval=$?
+
+unset LD_PRELOAD
+# Check for an segmentation fault.
+if test $exval -eq 139; then
+  # We caught a segmentation error.  The output is in the file with the
+  # name we have in SEGFAULT_OUTPUT_NAME.  In the output the names of
+  # functions in shared objects are available, but names in the static
+  # part of the program are not.  We use addr2line to get this information.
+  (read line; echo "$line"
+   read line; echo "$line"
+   while read line; do
+     case "$line" in
+       [*) addr="`echo $line | sed 's/^[\(.*\)]$/\1/'`"
+           complete="`addr2line -f -e $prog $addr 2>/dev/null|`"
+           if $? -eq 0; then
+             echo "`echo $complete|sed 'N;s/\(.*\)\n\(.*\)/\2(\1)/;'`$line"
+           else
+             echo "$line"
+           fi
+           ;;
+        *) echo "$line"
+           ;;
+     esac
+   done) < $SEGFAULT_OUTPUT_NAME
+   rm $SEGFAULT_OUTPUT_NAME
+fi
+
+exit $exval
-- 
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