Date: Wed, 27 Jul 2016 17:55:40 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r303403 - in stable: 10/usr.sbin/crashinfo 9/usr.sbin/crashinfo Message-ID: <201607271755.u6RHtekp030589@repo.freebsd.org>
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Author: jhb Date: Wed Jul 27 17:55:40 2016 New Revision: 303403 URL: https://svnweb.freebsd.org/changeset/base/303403 Log: MFC 303109: Update crashinfo to work with newer gdb from ports. If gdb from ports is installed, use it instead of the base system gdb to extract variables from a kernel. Note that base gdb and ports gdb do not support the same options for invoking a single command in batch mode, so a wrapper shell function is used. In addition, prefer kgdb from ports when generating a backtrace if present. PR: 193335 Modified: stable/10/usr.sbin/crashinfo/crashinfo.sh Directory Properties: stable/10/ (props changed) Changes in other areas also in this revision: Modified: stable/9/usr.sbin/crashinfo/crashinfo.sh Directory Properties: stable/9/usr.sbin/crashinfo/ (props changed) Modified: stable/10/usr.sbin/crashinfo/crashinfo.sh ============================================================================== --- stable/10/usr.sbin/crashinfo/crashinfo.sh Wed Jul 27 17:55:14 2016 (r303402) +++ stable/10/usr.sbin/crashinfo/crashinfo.sh Wed Jul 27 17:55:40 2016 (r303403) @@ -35,6 +35,22 @@ usage() exit 1 } +# Run a single gdb command against a kernel file in batch mode. +# The kernel file is specified as the first argument and the command +# is given in the remaining arguments. +gdb_command() +{ + local k + + k=$1 ; shift + + if [ -x /usr/local/bin/gdb ]; then + /usr/local/bin/gdb -batch -ex "$@" $k + else + echo -e "$@" | /usr/bin/gdb -x /dev/stdin -batch $k + fi +} + find_kernel() { local ivers k kvers @@ -55,8 +71,8 @@ find_kernel() # Look for a matching kernel version. for k in `sysctl -n kern.bootfile` $(ls -t /boot/*/kernel); do - kvers=$(echo 'printf " Version String: %s", version' | \ - gdb -x /dev/stdin -batch $k 2>/dev/null) + kvers=$(gdb_command $k 'printf " Version String: %s", version' \ + 2>/dev/null) if [ "$ivers" = "$kvers" ]; then KERNEL=$k break @@ -151,11 +167,10 @@ echo "Writing crash summary to $FILE." umask 077 # Simulate uname -ostype=$(echo -e printf '"%s", ostype' | gdb -x /dev/stdin -batch $KERNEL) -osrelease=$(echo -e printf '"%s", osrelease' | gdb -x /dev/stdin -batch $KERNEL) -version=$(echo -e printf '"%s", version' | gdb -x /dev/stdin -batch $KERNEL | \ - tr '\t\n' ' ') -machine=$(echo -e printf '"%s", machine' | gdb -x /dev/stdin -batch $KERNEL) +ostype=$(gdb_command $KERNEL 'printf "%s", ostype') +osrelease=$(gdb_command $KERNEL 'printf "%s", osrelease') +version=$(gdb_command $KERNEL 'printf "%s", version' | tr '\t\n' ' ') +machine=$(gdb_command $KERNEL 'printf "%s", machine') exec > $FILE 2>&1 @@ -174,7 +189,11 @@ file=`mktemp /tmp/crashinfo.XXXXXX` if [ $? -eq 0 ]; then echo "bt" >> $file echo "quit" >> $file - kgdb $KERNEL $VMCORE < $file + if [ -x /usr/local/bin/kgdb ]; then + /usr/local/bin/kgdb $KERNEL $VMCORE < $file + else + kgdb $KERNEL $VMCORE < $file + fi rm -f $file echo fi
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