Creating dump header for IBM systems
-Adding dump header script:
-Changes are related to IBM specific systems only, no
impact on the existing dump package format without
dump header. In package function only for IBM systems
the generated header will be added to the dump, for
remaining systems the existing dump format remains same.
-Adding dump header which will be added on top of the
the <obmc file>.tar.xz, only on IBM systems
Note: If user wants to extract the dump, they need to remove
the header from the dump using dd command.
Example
dd bs=628 skip=1 if=<input_dump_file> of=<output_file>
Result:
Tested the dump header using busctl command and dreport script.
Able to add dump header on top of the <obmcdump>.tar.xz file.
Separated out the header from the output file using dd command:
dd bs=628 skip=1 if=<obmc dump>.tar.xz of=openbmc.tar.xz
The new output file doesn't have the header now and can be unzipped.
Post unzipping the files in the dump can be seen.
hexdump ooutput of the dump header:-
00000000 46 49 4c 45 20 20 20 20 00 40 00 00 00 00 00 00 |FILE .@......|
00000010 00 00 00 00 00 01 00 0f 42 4d 50 44 55 4d 50 2e |........BMPDUMP.|
00000020 53 49 4d 50 31 30 52 2e 30 30 30 30 30 30 30 36 |SIMP10R.00000006|
00000030 2e 32 30 32 30 30 39 32 39 31 31 31 30 34 33 00 |.20200929111043.|
00000040 53 45 43 54 49 4f 4e 20 00 30 00 00 00 00 00 00 |SECTION .0......|
00000050 00 00 00 01 00 02 00 00 00 00 00 00 00 02 ad dc |................|
00000060 42 4d 43 44 55 4d 50 00 00 00 00 00 00 00 00 00 |BMCDUMP.........|
00000070 42 4d 43 20 44 55 4d 50 00 00 00 00 00 00 00 00 |BMC DUMP........|
00000080 00 00 00 00 02 10 02 00 00 00 00 00 00 02 ad dc |................|
00000090 39 31 30 35 2d 32 32 41 00 00 00 00 00 00 00 00 |9105-22A........|
000000a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000000b0 53 65 72 76 65 72 2d 39 31 30 35 2d 32 32 41 2d |Server-9105-22A-|
000000c0 53 4e 2d 53 49 4d 50 31 30 52 00 00 00 00 00 00 |SN-SIMP10R......|
000000d0 00 53 49 4d 50 31 30 52 00 00 00 00 00 70 00 00 |.SIMP10R.....p..|
000000e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
00000270 01 01 00 00 fd 37 7a 58 5a 00 00 04 e6 d6 b4 46 |.....7zXZ......F|
Signed-off-by: Chirag Sharma <chirshar@in.ibm.com>
Change-Id: I27bffdd96a6da0777d88e3c7f93eee92cffbfd6e
diff --git a/tools/dreport.d/dreport b/tools/dreport.d/dreport
index 165e11e..d831191 100755
--- a/tools/dreport.d/dreport
+++ b/tools/dreport.d/dreport
@@ -54,6 +54,7 @@
declare -rx DREPORT_INCLUDE="$DREPORT_SOURCE/include.d"
declare -rx ZERO="0"
declare -rx JOURNAL_LINE_LIMIT="500"
+declare -rx HEADER_EXTENSION="$DREPORT_INCLUDE/gendumpheader"
#Error Codes
declare -rx SUCCESS="0"
@@ -224,8 +225,17 @@
fi
#tar and compress the files.
- tar -Jcf "$name_dir.tar.xz" -C \
- $(dirname "$name_dir") $(basename "$name_dir")
+ if [ -f "$HEADER_EXTENSION" ]; then
+ tar -Jcf "$name_dir.tar.xz" -C \
+ $(dirname "$name_dir") $(basename "$name_dir")
+ echo "Adding Dump Header :"$HEADER_EXTENSION
+ ("$HEADER_EXTENSION")
+ cat "$name_dir.tar.xz" | tee -a "/tmp/dumpheader_$EPOCHTIME" > /dev/null
+ mv "/tmp/dumpheader_$EPOCHTIME" "$name_dir.tar.xz"
+ else
+ tar -Jcf "$name_dir.tar.xz" -C \
+ $(dirname "$name_dir") $(basename "$name_dir")
+ fi
if [ $? -ne 0 ]; then
echo $($TIME_STAMP) "Could not create the compressed tar file"