Il gio 6 mar 2025, 13:20 Alex Bennée <[email protected]> ha scritto:

> Paolo Bonzini <[email protected]> writes:
>
> > Il gio 6 mar 2025, 11:53 Alex Bennée <[email protected]> ha
> scritto:
> >
> >  -option_cflags = (get_option('debug') ? ['-g'] : [])
> >  +option_cflags = []
> >  +if get_option('debug')
> >  +  option_cflags += get_option('split_debug') ? ['-gsplit-dwarf'] :
> ['-g']
> >  +endif
> >
> > option_cflags does nothing, it's only for clarity in the final summary.
> So you need
> >
> > if get_option('debug') and get_option('split_debug')
> >   qemu_cflags += '-gsplit-dwarf'
> > endif
>
> Should I update the optimization field as well? is this the reason why I
> wasn't seeing changes occur for the tests that meson builds?
>

I am not sure what you mean by optimization field; anyway, qemu_cflags
applies to all C sources and qemu_ldflags to all programs linked with the C
compiler. As I understand it, '-gsplit-dwarf' should go in qemu_cflags.

Paolo


> >
> > (I wonder if it should be implemented in meson instead... It should be
> beneficial for other projects surely).
> >
> > Paolo
> >
> >   if get_option('optimization') != 'plain'
> >     option_cflags += ['-O' + get_option('optimization')]
> >   endif
> >  diff --git a/meson_options.txt b/meson_options.txt
> >  index 59d973bca0..3432123fee 100644
> >  --- a/meson_options.txt
> >  +++ b/meson_options.txt
> >  @@ -362,6 +362,8 @@ option('debug_mutex', type: 'boolean', value: false,
> >          description: 'mutex debugging support')
> >   option('debug_stack_usage', type: 'boolean', value: false,
> >          description: 'measure coroutine stack usage')
> >  +option('split_debug', type: 'boolean', value: true,
> >  +       description: 'split debug info from object files')
> >   option('qom_cast_debug', type: 'boolean', value: true,
> >          description: 'cast debugging support')
> >   option('slirp_smbd', type : 'feature', value : 'auto',
> >  diff --git a/scripts/meson-buildoptions.sh
> b/scripts/meson-buildoptions.sh
> >  index 3e8e00852b..aca6e68830 100644
> >  --- a/scripts/meson-buildoptions.sh
> >  +++ b/scripts/meson-buildoptions.sh
> >  @@ -504,6 +504,8 @@ _meson_option_parse() {
> >       --disable-strict-rust-lints) printf "%s" -Dstrict_rust_lints=false
> ;;
> >       --enable-strip) printf "%s" -Dstrip=true ;;
> >       --disable-strip) printf "%s" -Dstrip=false ;;
> >  +    --enable-split-debug) printf "%s" -Dsplit_debug=true ;;
> >  +    --disable-split-debug) printf "%s" -Dsplit_debug=false ;;
> >       --sysconfdir=*) quote_sh "-Dsysconfdir=$2" ;;
> >       --enable-tcg) printf "%s" -Dtcg=enabled ;;
> >       --disable-tcg) printf "%s" -Dtcg=disabled ;;
> >  --
> >  2.39.5
>
> --
> Alex Bennée
> Virtualisation Tech Lead @ Linaro
>
>

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