Re: Recompile QEMU with frame-pointers

[Salvatore Mazzarino]

I have compiled QEMU with the following flags

../configure \
    --enable-werror \
    --enable-trace-backend=simple \
    --enable-debug \
    --target-list="x86_64-softmmu" \
    --disable-gcrypt \
    --enable-nettle \
    --enable-docs \
    --enable-fdt=system \
    --enable-slirp=system \
    --enable-capstone=system


what I still get when I run perf command bcc/tools/profile is


qemu-system-x86;[unknown];[unknown];[unknown];[unknown];[unknown];[unknown];[unknown];[unknown];[unknown];[unknown];[unknown];[unknown];[unknown];[unknown];[unknown];[unknown]
1


Any idea?



On 27 January 2021 at 15:14:54, Salvatore Mazzarino (apocalips...@gmail.com)
wrote:

I’m trying to profile my QEMU process but what I get is a stack full of
unknown.

I would then need to recompile QEMU with -fno-omit-frame-pointer.

Do you know if there is a version already built for that purpose?

Thank you