Re: [gentoo-user] Re: What does it take to get debug symbols from /lib/ld-2.9.so?
Nikos Chantziaras skrev:
> On 09/06/2009 11:22 AM, Erik wrote:
>> Nikos Chantziaras skrev:
>>> On 09/06/2009 09:43 AM, Erik wrote:
I have emerged glibc with "debug -glibc-omitfp" and restarted the
system. But when I execute "valgrind
/usr/lib/mozilla-firefox/firefox" I
only see things like this:
Invalid read of size 4
at 0x4018620: (within /lib/ld-2.9.so)
No filename:linenumber here. What does it take to get debug symbols
from
/lib/ld-2.9.so?
>>>
>>> Don't emerge with "debug -glibc-omitfp". Emerge with "splitdebug" in
>>> FEATURES.
>> Done:
>> Conditional jump or move depends on uninitialised value(s)
>> at 0x400C0AC: _dl_relocate_object (in /lib/ld-2.9.so)
>>
>> Now it at least shows the function name. But still no
>> filename:linenumber. Maybe I need "debug" for that after all?
>
> Just "-g" in CFLAGS.
Ok, I added this to /etc/portage/env/sys-libs/glibc-2.9_p20081201-r2:
pre_pkg_setup() {
if ! hasq -g $CFLAGS ; then
elog "Adding -g to CFLAGS for $PN-$PV to locate errors
reported by Valgrind."
CFLAGS="$CFLAGS -g"
fi
}
Then I emerged glibc. It printed the elog message that I added and
included -g in the compile commands. Then I restarted the system. But
still no filename:linenumber in Valgrind.
[gentoo-user] Re: What does it take to get debug symbols from /lib/ld-2.9.so?
On 09/06/2009 11:22 AM, Erik wrote: Nikos Chantziaras skrev: On 09/06/2009 09:43 AM, Erik wrote: I have emerged glibc with "debug -glibc-omitfp" and restarted the system. But when I execute "valgrind /usr/lib/mozilla-firefox/firefox" I only see things like this: Invalid read of size 4 at 0x4018620: (within /lib/ld-2.9.so) No filename:linenumber here. What does it take to get debug symbols from /lib/ld-2.9.so? Don't emerge with "debug -glibc-omitfp". Emerge with "splitdebug" in FEATURES. Done: Conditional jump or move depends on uninitialised value(s) at 0x400C0AC: _dl_relocate_object (in /lib/ld-2.9.so) Now it at least shows the function name. But still no filename:linenumber. Maybe I need "debug" for that after all? Just "-g" in CFLAGS.
Re: [gentoo-user] Re: What does it take to get debug symbols from /lib/ld-2.9.so?
Nikos Chantziaras skrev: > On 09/06/2009 09:43 AM, Erik wrote: >> I have emerged glibc with "debug -glibc-omitfp" and restarted the >> system. But when I execute "valgrind /usr/lib/mozilla-firefox/firefox" I >> only see things like this: >> Invalid read of size 4 >> at 0x4018620: (within /lib/ld-2.9.so) >> >> No filename:linenumber here. What does it take to get debug symbols from >> /lib/ld-2.9.so? > > Don't emerge with "debug -glibc-omitfp". Emerge with "splitdebug" in > FEATURES. Done: Conditional jump or move depends on uninitialised value(s) at 0x400C0AC: _dl_relocate_object (in /lib/ld-2.9.so) Now it at least shows the function name. But still no filename:linenumber. Maybe I need "debug" for that after all?
Re: [gentoo-user] Re: What does it take to get debug symbols from /lib/ld-2.9.so?
Nikos Chantziaras writes: > Don't emerge with "debug -glibc-omitfp". Emerge with "splitdebug" in > FEATURES. And make sure you include a -g option (eg -ggdb) in CFLAGS
[gentoo-user] Re: What does it take to get debug symbols from /lib/ld-2.9.so?
On 09/06/2009 09:43 AM, Erik wrote: I have emerged glibc with "debug -glibc-omitfp" and restarted the system. But when I execute "valgrind /usr/lib/mozilla-firefox/firefox" I only see things like this: Invalid read of size 4 at 0x4018620: (within /lib/ld-2.9.so) No filename:linenumber here. What does it take to get debug symbols from /lib/ld-2.9.so? Don't emerge with "debug -glibc-omitfp". Emerge with "splitdebug" in FEATURES. See http://www.gentoo.org/proj/en/qa/backtraces.xml (scroll down to where splitdebug is described).
