lkml.org 
[lkml]   [2022]   [May]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC PATCH v2 5/7] objtool: Enable objtool to run only on files with ftrace enabled
On Tue, May 24, 2022 at 08:01:39PM +0200, Peter Zijlstra wrote:
> On Tue, May 24, 2022 at 03:17:45PM +0200, Christophe Leroy wrote:
> > From: Sathvika Vasireddy <sv@linux.ibm.com>
> >
> > This patch makes sure objtool runs only on the object files
> > that have ftrace enabled, instead of running on all the object
> > files.
> >
> > Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
> > Signed-off-by: Sathvika Vasireddy <sv@linux.ibm.com>
> > Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
> > ---
> > scripts/Makefile.build | 4 ++--
> > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/scripts/Makefile.build b/scripts/Makefile.build
> > index 2e0c3f9c1459..06ceffd92921 100644
> > --- a/scripts/Makefile.build
> > +++ b/scripts/Makefile.build
> > @@ -258,8 +258,8 @@ else
> > # 'OBJECT_FILES_NON_STANDARD_foo.o := 'y': skip objtool checking for a file
> > # 'OBJECT_FILES_NON_STANDARD_foo.o := 'n': override directory skip for a file
> >
> > -$(obj)/%.o: objtool-enabled = $(if $(filter-out y%, \
> > - $(OBJECT_FILES_NON_STANDARD_$(basetarget).o)$(OBJECT_FILES_NON_STANDARD)n),y)
> > +$(obj)/%.o: objtool-enabled = $(and $(if $(filter-out y%, $(OBJECT_FILES_NON_STANDARD_$(basetarget).o)$(OBJECT_FILES_NON_STANDARD)n),y), \
> > + $(if $(findstring $(strip $(CC_FLAGS_FTRACE)),$(_c_flags)),y),y)
>
> I think this breaks x86, quite a bit of files have ftrace disabled but
> very much must run objtool anyway.

Also; since the Changelog gives 0 clue as to what problem it's trying to
solve, I can't suggest anything.

\
 
 \ /
  Last update: 2022-05-24 20:03    [W:0.075 / U:1.196 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site