Re: [PATCH 4/4] objtool: Don't print '.tmp_' prefix for .o files

From: Ingo Molnar
Date: Wed Jan 31 2018 - 01:17:40 EST



* Josh Poimboeuf <jpoimboe@xxxxxxxxxx> wrote:

> On Tue, Jan 30, 2018 at 10:58:31AM +0100, Peter Zijlstra wrote:
> > On Mon, Jan 29, 2018 at 10:00:42PM -0600, Josh Poimboeuf wrote:
> > > With the following commit:
> > >
> > > 2a0098d70640 ("objtool: Fix seg fault with gold linker")
> > >
> > > ... objtool warnings started showing the modversions '.tmp_' prefix in
> > > the .o file name, like:
> > >
> > > arch/x86/mm/.tmp_mem_encrypt_boot.o: warning: objtool: sme_encrypt_execute()+0x48: indirect call found in RETPOLINE build
> > >
> > > The prefix is confusing. Remove it from the printed 'objname' variable.
> >
> > This patch actually tripped me up today. Turns out I have both:
> >
> > build/kernel/sched/core.o
> > build/kernel/sched/.tmp_core.o
> >
> > and ended up staring at the wrong file and going WTF because the offsets
> > didn't match.
> >
> > I much prefer the actual real filename printed. Yes the .tmp_ crud is
> > weird, but at least its the real file.
>
> Good point, sorry for tripping you up there. I see it's been removed
> from -tip now. [...]

Yeah, and we had to rebase to a later kernel anyway so it was easy to remove it
for now.

Thanks,

Ingo