[gentoo-user] Re: What does it take to get debug symbols from /lib/ld-2.9.so?

2009-09-06 Thread Nikos Chantziaras 

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).

Re: [gentoo-user] Re: What does it take to get debug symbols from /lib/ld-2.9.so?

2009-09-06 Thread Graham Murray 
Nikos Chantziaras rea...@arcor.de 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

Re: [gentoo-user] Re: What does it take to get debug symbols from /lib/ld-2.9.so?

2009-09-06 Thread Erik 
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?

[gentoo-user] Re: What does it take to get debug symbols from /lib/ld-2.9.so?

2009-09-06 Thread Nikos Chantziaras 

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?

2009-09-06 Thread Erik 
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.