Re: [Qemu-devel] Unable to Run Gprof Successfully on QEMU

["Atoosaah S" <atoosaah@gmail.com>]

[-- Attachment #1: Type: text/plain, Size: 1826 bytes --]

How do I enable debugging?

I checked the configure file and I do not see any options for compiling with
debugging, i.e. there is no --enable-debug option. I see that the "default
parameters" section of the configure file sets: gdbstub="yes" but other than
that i do not see any other reference to debugging.

Also, I am working with qemu source code, which I configure, make, make
install before every run.

Thank you again.


On 10/12/07, J. Mayer <l_indien@magic.fr> wrote:
>
> On Fri, 2007-10-12 at 01:00 -0700, Atoosaah S wrote:
> > I'd appreciate any input on how to run gprof successfully on qemu. I'm
> > new to gprof and am probably missing some steps.  I successfully ran
> > gprof on a sorting program available online, then I attempted to run
> > gprof on qemu.
> >
> > Here are the steps I take:
> >
> > I'm trying to run gprof on qemu, but am unsuccessful. my os is linux,
> > my qemu version is 0.8.2. I configure qemu with the options "configure
> > --prefix=/install_path --enable-gprof. Then I make and make install. I
> > run qemu successfully using the options /install_path/qemu -hda
> > diskimage.img -m 256 which results in the gmon.out file. My run of
> > qemu involved starting the image (virtual linux OS), running a few
> > simple commands and shutting the image down.
> >
> > Finally, I run gprof /intsall_path/qemu gmon.out > result.txt which
> > gives the error: gprof: file 'qemu' has no symbols'
> >
> > Are there any other configuration options required? Should the image
> > be run with differently?
>
> You need a qemu executable with debugging symbols. Distributed versions
> are usually stripped, which means the debug symbols are not present
> anymore.
> A way to get the debug symbol is to fetch the source and recompile it...
>
> --
> J. Mayer <l_indien@magic.fr>
> Never organized
>
>

[-- Attachment #2: Type: text/html, Size: 2327 bytes --]