Build dbgsyms for use by systemtap

[Jani Monoses]

Allow using systemtap on the omap4 kernel as with the default ubuntu x86 ones.

[Tim Gardner (timg-tpi)]

All of the config options required for Systemtap appear to be enabled according to this article: http://www.ibm.com/developerworks/linux/library/l-systemtap/index.html, e.g., CONFIG_RELAY, CONFIG_DEBUG_FS, CONFIG_DEBUG_INFO, and CONFIG_KPROBES. What do you think is missing?

[Jani Monoses (jani)]

Thanks, I just did not find the ddebs path initally.
http://ddebs.ubuntu.com/pool/main/l/linux-ti-omap4/

[Paolo Pisati (p-pisati)]

everything should be already in place:

flag@omap:~$ uname -a
Linux omap 3.0.0-1203-omap4 #8-Ubuntu SMP PREEMPT Tue Aug 23 13:25:47 UTC 2011 armv7l armv7l armv7l GNU/Linux
flag@omap:~$ wget http://ddebs.ubuntu.com/pool/main/l/linux-ti-omap4/linux-image-3.0.0-1203-omap4-dbgsym_3.0.0-1203.8_armel.ddeb
[snip]
flag@omap:~$ sudo dpkg -i linux-image-3.0.0-1203-omap4-dbgsym_3.0.0-1203.8_armel.ddeb
[snip]

(i assume linux-headers-3.0.0-1203-omap4 were already installed)

flag@omap:~$ sudo ln -s /usr/src/linux-headers-3.0.0-1203-omap4/ /lib/modules/3.0.0-1203-omap4/build

flag@omap:~$ cat hello.stp
probe begin
{
printf("Hello world\n")
exit()
}
flag@omap:~$ sudo stap hello.stp
Hello world
flag@omap:~$