Re: [LTP] lcov error

[Nigel H. <nh...@us...>]

Ville, this looks like a mismatch between the gcov format produced by the=20
compiler and the format expected by lcov.  What architecture are you=20
working on, and are you using the vanilla GNU compiler?=20

Thanks.

ltp...@li... wrote on 04/13/2005 05:05:26 PM:

> hi!
>=20
> I have a problem using lcov program.
> when I run it this I receive this message
> # lcov --capture --output-file kernel.info
> Copying kernel data to temporary directory /tmp/tmpdir627
> Capturing coverage data from /tmp/tmpdir627
> Found gcov version: 3.3.5
> Scanning /tmp/tmpdir627 for .da files ...
> ERROR: no .da files found in /tmp/tmpdir627!
> Removing temporary directory /tmp/tmpdir627
>=20
> my kernel compilation process was:
> =3D-=3D-=3D-
> # tar xjvf linux-2.6.8.tar.bz2
> # cd linux-2.6.8
> # patch -p1 < ../gcov-2.6.8.patch
> # make menuconfig
>=20
> apply this options
> CONFIG=5FGCOV=5FPROFILE=3Dy=20
> CONFIG=5FGCOV=5FALL=3Dy
> CONFIG=5FGCOV=5FPROC=3Dm
>=20
> # make-kpkg --rootcmd fakeroot --revision=3D0.2 --initrd kernel=5Fimage
>=20
> install and reboot the machine...
>=20
> # modeprobe gcov-proc
>=20
> I looked into /proc/gcov and I saw that all of files is prefeixed with
> "./tmp=5F", look.
>=20
> # cd /proc/gcov/kernel/
> # ls -a
> .
> ..
> .tmp=5Facct.bb
> .tmp=5Facct.bbg
> .tmp=5Facct.c
> .tmp=5Facct.da
> .tmp=5Fcapability.bb
> .tmp=5Fcapability.bbg
> .tmp=5Fcapability.c
> ...
>=20
> when I remove that prefix and apply the gcov it works so good but lcov
> don't work because this.
>=20
> What is the problem?
> How can I resove it?
>=20
>=20
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