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authorUlrich Drepper <drepper@redhat.com>1998-07-16 23:08:48 +0000
committerUlrich Drepper <drepper@redhat.com>1998-07-16 23:08:48 +0000
commit6ce7ab198a85eb94b3ba9733a2b824203611e151 (patch)
treee55a5c7563a28e0d97b6edd50887cc236a4636f6 /debug
parenteb0e1178c54f29cc51c5a035ea035f634d348fd1 (diff)
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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.
Diffstat (limited to 'debug')
-rw-r--r--debug/Makefile13
-rwxr-xr-xdebug/catchsegv.sh84
2 files changed, 96 insertions, 1 deletions
diff --git a/debug/Makefile b/debug/Makefile
index 3ee7a9f94d..0826b9983a 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 0000000000..765242ecf8
--- /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