Documentation/devtools/maemo5/sp-rich-core
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| - | After copying the ''crasher'' program to your device and having installed the sp-rich-core | + | After copying the ''crasher'' program to your device and having installed the tool ''crash-reporter'' package (hereby fetching sp-rich-core as dependency), you can now run the program. |
| - | NOTE: The daemon /usr/bin/crash_reporter_daemon that is installed with | + | NOTE: The daemon /usr/bin/crash_reporter_daemon that is installed with crash-reporter package will create the /home/user/MyDocs/core-dumps directory and also on all MMC media, so if you are not seeing any files appear in /home/user/MyDocs/core-dumps/ then check the locations /media/mmc*/core-dumps/ as well. |
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Latest revision as of 20:15, 17 October 2014
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This article documents a developer tool. A list of available devtools is available, together with installation instructions. |
Contents |
[edit] Description
sp-rich-core is a package that installs an init script that pipes core dumps through a script. This script collects lots of information from the system and then saves that and the core dump data compressed into a file. The collected information includes process SMAPS data, most of /proc data, last lines from syslog, df and ifconfig output etc.
Compressing the core dumps (with lzo) actually speeds up saving them.
Use rich-core-extract (from sp-rich-core-postproc package) to extract the information from a rich core dump.
[edit] Packages
source: sp-rich-core
binary: sp-rich-core, sp-rich-core-postproc
[edit] Usage Examples
Create a small program that's sure to crash:
- - - snip crasher.c - - -
#include <string.h>
int main()
{
char *p = 0;
memcpy(p, 0x00, sizeof(p));
}
- - - snap crasher.c - - -
# gcc -g -o crasher crasher.c
After copying the crasher program to your device and having installed the tool crash-reporter package (hereby fetching sp-rich-core as dependency), you can now run the program.
NOTE: The daemon /usr/bin/crash_reporter_daemon that is installed with crash-reporter package will create the /home/user/MyDocs/core-dumps directory and also on all MMC media, so if you are not seeing any files appear in /home/user/MyDocs/core-dumps/ then check the locations /media/mmc*/core-dumps/ as well.
Nokia-N900-40-12:~# ./crasher Segmentation fault (core dumped) Nokia-N900-40-12:~# cd /home/user/MyDocs/core-dumps/ Nokia-N900-40-12:/home/user/MyDocs/core-dumps# rich-core-extract crasher-7764-11-2887.rcore.lzo # by default this will create a directory of the same name without the suffix Nokia-N900-40-12:/home/user/MyDocs/core-dumps# ls -l crasher-7764-11-2887 -rw-r--r-- 1 user root 9 Oct 6 12:18 cmdline -rw-r--r-- 1 user root 74 Oct 6 12:18 component_version -rw-r--r-- 1 user root 135168 Oct 6 12:18 coredump -rw-r--r-- 1 user root 31 Oct 6 12:18 date -rw-r--r-- 1 user root 646 Oct 6 12:18 df -rw-r--r-- 1 user root 217 Oct 6 12:18 fd -rw-r--r-- 1 user root 2665 Oct 6 12:18 ifconfig -rw-r--r-- 1 user root 1860 Oct 6 12:18 ls_proc -rw-r--r-- 1 user root 403 Oct 6 12:18 osso-product-info -rw-r--r-- 1 user root 34 Oct 6 12:18 osso_software_version -rw-r--r-- 1 user root 21495 Oct 6 12:18 packagelist -rw-r--r-- 1 user root 78002 Oct 6 12:18 proc2csv -rw-r--r-- 1 user root 5449 Oct 6 12:18 slabinfo -rw-r--r-- 1 user root 3723 Oct 6 12:18 smaps
The directory will contain lots of potentially useful information in addition to the core dump file.
[edit] Links
[rich-core-dumper man page](/development/documentation/man_pages/rich-core-dumper.html)
[rich-core-extract man page](/development/documentation/man_pages/rich-core-extract.html)
[edit] See Also
- This page was last modified on 17 October 2014, at 20:15.
- This page has been accessed 17,203 times.