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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/scripts/decodecode
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/scripts/decodecode')
-rwxr-xr-xkernel/scripts/decodecode104
1 files changed, 104 insertions, 0 deletions
diff --git a/kernel/scripts/decodecode b/kernel/scripts/decodecode
new file mode 100755
index 000000000..d8824f37a
--- /dev/null
+++ b/kernel/scripts/decodecode
@@ -0,0 +1,104 @@
+#!/bin/sh
+# Disassemble the Code: line in Linux oopses
+# usage: decodecode < oops.file
+#
+# options: set env. variable AFLAGS=options to pass options to "as";
+# e.g., to decode an i386 oops on an x86_64 system, use:
+# AFLAGS=--32 decodecode < 386.oops
+
+cleanup() {
+ rm -f $T $T.s $T.o $T.oo $T.aa $T.dis
+ exit 1
+}
+
+die() {
+ echo "$@"
+ exit 1
+}
+
+trap cleanup EXIT
+
+T=`mktemp` || die "cannot create temp file"
+code=
+
+while read i ; do
+
+case "$i" in
+*Code:*)
+ code=$i
+ ;;
+esac
+
+done
+
+if [ -z "$code" ]; then
+ rm $T
+ exit
+fi
+
+echo $code
+code=`echo $code | sed -e 's/.*Code: //'`
+
+width=`expr index "$code" ' '`
+width=$((($width-1)/2))
+case $width in
+1) type=byte ;;
+2) type=2byte ;;
+4) type=4byte ;;
+esac
+
+disas() {
+ ${CROSS_COMPILE}as $AFLAGS -o $1.o $1.s > /dev/null 2>&1
+
+ if [ "$ARCH" = "arm" ]; then
+ if [ $width -eq 2 ]; then
+ OBJDUMPFLAGS="-M force-thumb"
+ fi
+
+ ${CROSS_COMPILE}strip $1.o
+ fi
+
+ ${CROSS_COMPILE}objdump $OBJDUMPFLAGS -S $1.o | \
+ grep -v "/tmp\|Disassembly\|\.text\|^$" > $1.dis 2>&1
+}
+
+marker=`expr index "$code" "\<"`
+if [ $marker -eq 0 ]; then
+ marker=`expr index "$code" "\("`
+fi
+
+touch $T.oo
+if [ $marker -ne 0 ]; then
+ echo All code >> $T.oo
+ echo ======== >> $T.oo
+ beforemark=`echo "$code"`
+ echo -n " .$type 0x" > $T.s
+ echo $beforemark | sed -e 's/ /,0x/g; s/[<>()]//g' >> $T.s
+ disas $T
+ cat $T.dis >> $T.oo
+ rm -f $T.o $T.s $T.dis
+
+# and fix code at-and-after marker
+ code=`echo "$code" | cut -c$((${marker} + 1))-`
+fi
+echo Code starting with the faulting instruction > $T.aa
+echo =========================================== >> $T.aa
+code=`echo $code | sed -e 's/ [<(]/ /;s/[>)] / /;s/ /,0x/g; s/[>)]$//'`
+echo -n " .$type 0x" > $T.s
+echo $code >> $T.s
+disas $T
+cat $T.dis >> $T.aa
+
+# (lines of whole $T.oo) - (lines of $T.aa, i.e. "Code starting") + 3,
+# i.e. the title + the "===..=" line (sed is counting from 1, 0 address is
+# special)
+faultlinenum=$(( $(wc -l $T.oo | cut -d" " -f1) - \
+ $(wc -l $T.aa | cut -d" " -f1) + 3))
+
+faultline=`cat $T.dis | head -1 | cut -d":" -f2-`
+faultline=`echo "$faultline" | sed -e 's/\[/\\\[/g; s/\]/\\\]/g'`
+
+cat $T.oo | sed -e "${faultlinenum}s/^\(.*:\)\(.*\)/\1\*\2\t\t<-- trapping instruction/"
+echo
+cat $T.aa
+cleanup