* Re: [PATCH] kbuild: fix bug with modpost Makefile warn flag inclusion
[not found] <CA+1_+FO=65Hbd1bcTgb6WS4OwdF6W38fyiE1C2rWiU+=s_CHQQ@mail.gmail.com>
@ 2014-08-19 7:00 ` Michal Marek
0 siblings, 0 replies; 3+ messages in thread
From: Michal Marek @ 2014-08-19 7:00 UTC (permalink / raw)
To: Mike Ton; +Cc: linux-kbuild
On 2014-08-18 21:52, Mike Ton wrote:
> From: Michael Ton <linuxham@gmail.com <mailto:linuxham@gmail.com>>
>
> The current Makefile.modpost file includes a warn (-w) flag to modpost
> if KBUILD_EXTMOD or KBUILD_MODPOST_WARN. This flag should only be added
> if both flags are true.
Why?
> Whenever KBUILD_MODPOST is true, modpost
> currently only prints warnings and does not exit on error (such as on an
> undefined symbol).
Yes, that's what Documentation/kbuild/kbuild.txt and the comment at the
beginning of the Makefile say.
Michal
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH] kbuild: fix bug with modpost Makefile warn flag inclusion
@ 2014-08-18 20:20 Michael Ton
2014-08-19 4:35 ` Sam Ravnborg
0 siblings, 1 reply; 3+ messages in thread
From: Michael Ton @ 2014-08-18 20:20 UTC (permalink / raw)
To: linux-kbuild
From: Michael Ton <linuxham@gmail.com>
The current Makefile.modpost file includes a warn (-w) flag to modpost
if KBUILD_EXTMOD or KBUILD_MODPOST_WARN. This flag should only be added
if both flags are true. Whenever KBUILD_MODPOST is true, modpost
currently only prints warnings and does not exit on error (such as on an
undefined symbol).
Signed-off-by: Michael Ton <linuxham@gmail.com>
---
--- scripts/Makefile.modpost.orig 2014-08-18 13:18:18.704048707 -0600
+++ scripts/Makefile.modpost 2014-08-18 13:24:20.902520603 -0600
@@ -77,7 +77,7 @@ modpost = scripts/mod/modpost
$(if $(KBUILD_EXTRA_SYMBOLS), $(patsubst %, -e
%,$(KBUILD_EXTRA_SYMBOLS))) \
$(if $(KBUILD_EXTMOD),-o $(modulesymfile)) \
$(if $(CONFIG_DEBUG_SECTION_MISMATCH),,-S) \
- $(if $(KBUILD_EXTMOD)$(KBUILD_MODPOST_WARN),-w)
+ $(if $(KBUILD_EXTMOD), $(if $(KBUILD_MODPOST_WARN),-w))
MODPOST_OPT=$(subst -i,-n,$(filter -i,$(MAKEFLAGS)))
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] kbuild: fix bug with modpost Makefile warn flag inclusion
2014-08-18 20:20 Michael Ton
@ 2014-08-19 4:35 ` Sam Ravnborg
0 siblings, 0 replies; 3+ messages in thread
From: Sam Ravnborg @ 2014-08-19 4:35 UTC (permalink / raw)
To: Michael Ton; +Cc: linux-kbuild
On Mon, Aug 18, 2014 at 02:20:53PM -0600, Michael Ton wrote:
> From: Michael Ton <linuxham@gmail.com>
>
> The current Makefile.modpost file includes a warn (-w) flag to modpost if
> KBUILD_EXTMOD or KBUILD_MODPOST_WARN. This flag should only be added if
> both flags are true. Whenever KBUILD_MODPOST is true, modpost currently
> only prints warnings and does not exit on error (such as on an undefined
> symbol).
From the documentation:
KBUILD_MODPOST_WARN
--------------------------------------------------
KBUILD_MODPOST_WARN can be set to avoid errors in case of undefined
symbols in the final module linking stage. It changes such errors
into warnings.
Nothing here say that we need KBUILD_EXTMOD to use this.
Why did you conclude that KBUILD_MODPOST_WARN is only relevant for
KBUILD_EXTMOD? Something must have triggerede the patch...
Sam
^ permalink raw reply [flat|nested] 3+ messages in thread
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[not found] <CA+1_+FO=65Hbd1bcTgb6WS4OwdF6W38fyiE1C2rWiU+=s_CHQQ@mail.gmail.com>
2014-08-19 7:00 ` [PATCH] kbuild: fix bug with modpost Makefile warn flag inclusion Michal Marek
2014-08-18 20:20 Michael Ton
2014-08-19 4:35 ` Sam Ravnborg
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