debuginfo issues

[Benjamin De Kosnik]

Hey Jakub!

I don't see any libstdc++-debuginfo packages, and am wondering... why?
The /usr/lib shared lib is stripped. What am I missing? Is this debug
info in another package (and not the obvious libstdc++-debuginfo
package)? I usually just debug with my own toolchain so hadn't noticed
this before.

I'm trying to figure out what to do with boost's empty debuginfo
package, so had looked around for other libs that were presumably doing
this correctly. I'm not quite sure what's up: I get this in my build
log when I do

rpmbuild -ba boost.spec

...
+ /usr/lib/rpm/find-debuginfo.sh /usr/src/redhat/BUILD/boost_1_33_1
0 blocks
find: /var/tmp/boost-1.33.1-root/usr/lib/debug: No such file or directory
...

I'm looking for some documentation on this stuff and am coming up empty
handed. I don't see any consensus in the kernel.spec or gcc41.spec
files, and no trail of obvious tricks either. I see that the
gmp-debuginfo package does what I'd expect it to do, but doesn't seem to
resort to any trickery to do it. The build log for gmp looks like:

...
+ /usr/lib/rpm/find-debuginfo.sh /usr/src/redhat/BUILD/gmp-4.1.4
extracting debug info from /var/tmp/gmp-4.1.4-root/usr/lib/libgmpxx.so.3.0.5
extracting debug info from /var/tmp/gmp-4.1.4-root/usr/lib/libgmp.so.3.3.3
extracting debug info from /var/tmp/gmp-4.1.4-root/usr/lib/libmp.so.3.1.7
cpio: gmp-4.1.4/base/cxx/<built-in>: No such file or directory
cpio: gmp-4.1.4/base/mpn/tmp-add_n.s: No such file or directory
cpio: gmp-4.1.4/base/mpn/tmp-addmul_1.s: No such file or directory
cpio: gmp-4.1.4/base/mpn/tmp-copyd.s: No such file or directory
cpio: gmp-4.1.4/base/mpn/tmp-copyi.s: No such file or directory
cpio: gmp-4.1.4/base/mpn/tmp-dive_1.s: No such file or directory
cpio: gmp-4.1.4/base/mpn/tmp-diveby3.s: No such file or directory
cpio: gmp-4.1.4/base/mpn/tmp-divrem_1.s: No such file or directory
cpio: gmp-4.1.4/base/mpn/tmp-lshift.s: No such file or directory
cpio: gmp-4.1.4/base/mpn/tmp-mod_1.s: No such file or directory
cpio: gmp-4.1.4/base/mpn/tmp-mod_34lsub1.s: No such file or directory
cpio: gmp-4.1.4/base/mpn/tmp-mul_1.s: No such file or directory
cpio: gmp-4.1.4/base/mpn/tmp-mul_basecase.s: No such file or directory
cpio: gmp-4.1.4/base/mpn/tmp-rshift.s: No such file or directory
cpio: gmp-4.1.4/base/mpn/tmp-sub_n.s: No such file or directory
cpio: gmp-4.1.4/base/mpn/tmp-submul_1.s: No such file or directory
cpio: gmp-4.1.4/base/mpn/tmp-udiv.s: No such file or directory
cpio: gmp-4.1.4/base/mpn/tmp-umul.s: No such file or directory
2702 blocks
...

The boost build procedure unfortunately doesn't use the standard GNU
make tools, so perhaps this is something related to build location, or
something not done?

-benjamin

[Hans de Goede]

Benjamin Kosnik wrote:
> Hey Jakub!
>
> I don't see any libstdc++-debuginfo packages, and am wondering... why?
> The /usr/lib shared lib is stripped. What am I missing? Is this debug
> info in another package (and not the obvious libstdc++-debuginfo
> package)? I usually just debug with my own toolchain so hadn't noticed
> this before.

[hans@shalem devel]$ rpm -qi libstdc++
libstdc++-4.1.1-20.i386
Name        : libstdc++                    Relocations: (not relocatable)
Version     : 4.1.1                             Vendor: Red Hat, Inc.
Release     : 20                            Build Date: Tue 29 Aug 2006
12:24:58 AM CEST
Install Date: Thu 14 Sep 2006 10:55:47 PM CEST      Build Host:
hs20-bc1-6.build.redhat.com
Group       : System Environment/Libraries   Source RPM:
gcc-4.1.1-20.src.rpm
Size        : 929584                           License: GPL
Signature   : DSA/SHA1, Wed 13 Sep 2006 02:31:00 PM CEST, Key ID
fd372689897da07a
Packager    : Red Hat, Inc. http://bugzilla.redhat.com/bugzilla
URL         : http://gcc.gnu.org
Summary     : GNU Standard C++ Library
Description :
The libstdc++ package contains a rewritten standard compliant GCC Standard
C++ Library.
libstdc++-4.1.1-27.x86_64
Name        : libstdc++                    Relocations: (not relocatable)
Version     : 4.1.1                             Vendor: Red Hat, Inc.
Release     : 27                            Build Date: Fri 29 Sep 2006
12:48:17 AM CEST
Install Date: Mon 02 Oct 2006 09:31:20 AM CEST      Build Host:
hs20-bc1-5.build.redhat.com
Group       : System Environment/Libraries   Source RPM:
gcc-4.1.1-27.src.rpm
Size        : 981840                           License: GPL
Signature   : (none)
Packager    : Red Hat, Inc. http://bugzilla.redhat.com/bugzilla
URL         : http://gcc.gnu.org
Summary     : GNU Standard C++ Library
Description :
The libstdc++ package contains a rewritten standard compliant GCC Standard
C++ Library.
[hans@shalem devel]$

Notice the "Source RPM: gcc-4.1.1-27.src.rpm", thus gcc-debuginfo is
what you want.

Regards,

Hans

[Caolán McNamara]

On Tue, 2006-11-14 at 23:28 +0100, Benjamin Kosnik wrote:
> I'm trying to figure out what to do with boost's empty debuginfo
> package, so had looked around for other libs that were presumably doing
> this correctly. I'm not quite sure what's up: I get this in my build
> log when I do
>
> rpmbuild -ba boost.spec
>
> ...
> /usr/lib/rpm/find-debuginfo.sh /usr/src/redhat/BUILD/boost_1_33_1
>
> 0 blocks
> find: /var/tmp/boost-1.33.1-root/usr/lib/debug: No such file or directory
> The boost build procedure unfortunately doesn't use the standard GNU
> make tools, so perhaps this is something related to build location, or
> something not done?

Any chance that the boost make install has a custom pre-strip which
installs stripped .sos ? That would explain a worthless empty debuginfo
package.

C.

[Jakub Jelinek]

On Tue, Nov 14, 2006 at 11:28:32PM +0100, Benjamin Kosnik wrote:
> I don't see any libstdc++-debuginfo packages, and am wondering... why?

gcc-debuginfo.
> rpmbuild -ba boost.spec
>
> ...
> /usr/lib/rpm/find-debuginfo.sh /usr/src/redhat/BUILD/boost_1_33_1
>
> 0 blocks
> find: /var/tmp/boost-1.33.1-root/usr/lib/debug: No such file or directory
> ...

Most probably your Makefiles or spec stripped everything before reaching
debuginfo generation or wasn't even compiled with -g.
Make sure you don't strip anything you want debuginfo generated for
and that is has been compiled with debug enabled (-g is among RPM_OPT_FLAGS,
so if the package honors that, it shouldn't be any extra effort).
> I'm looking for some documentation on this stuff and am coming up empty
> handed. I don't see any consensus in the kernel.spec or gcc41.spec
> files, and no trail of obvious tricks either. I see that the

Don't look at kernel.spec or glibc.spec for debuginfo details, these
two packages build debuginfo specially on their own.  But AFAIK
all other packages use the standard thing.

Jakub