Messages in this thread | | | From | Brendan Higgins <> | Date | Mon, 27 Jan 2020 23:25:03 -0800 | Subject | Re: [RFC v1 1/2] kbuild: add arch specific dependency for BTF support |
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On Mon, Jan 27, 2020 at 7:28 PM Masahiro Yamada <masahiroy@kernel.org> wrote: > > Hi. > > On Tue, Jan 28, 2020 at 4:36 AM Brendan Higgins > <brendanhiggins@google.com> wrote: > > > > Some archs (like UM) do not build with CONFIG_DEBUG_INFO_BTF=y, so add > > an options for archs to select to opt-in or out of BTF typeinfo support. > > > Could you use a different subject prefix (e.g. "btf:") ? > > This is unrelated to kbuild.
Sure. My apologies, I just used the kbuild subject prefix because that's what the previous commit that touched BTF used. Will fix in next revision.
Thanks!
> > Signed-off-by: Brendan Higgins <brendanhiggins@google.com> > > --- > > lib/Kconfig.debug | 5 ++++- > > 1 file changed, 4 insertions(+), 1 deletion(-) > > > > diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug > > index e4676b992eae9..f5bcb391f1b7d 100644 > > --- a/lib/Kconfig.debug > > +++ b/lib/Kconfig.debug > > @@ -238,9 +238,12 @@ config DEBUG_INFO_DWARF4 > > But it significantly improves the success of resolving > > variables in gdb on optimized code. > > > > +config ARCH_NO_BTF_TYPEINFO > > + bool > > + > > config DEBUG_INFO_BTF > > bool "Generate BTF typeinfo" > > - depends on DEBUG_INFO > > + depends on DEBUG_INFO && !ARCH_NO_BTF_TYPEINFO > > help > > Generate deduplicated BTF type information from DWARF debug info. > > Turning this on expects presence of pahole tool, which will convert > > -- > > 2.25.0.341.g760bfbb309-goog > > > > > -- > Best Regards > Masahiro Yamada
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