diff mbox

pkg-kernel-module: Die when kernel modules are disabled

Message ID 1439546322-21504-1-git-send-email-nrubinstein@aldebaran.com
State Superseded
Headers show

Commit Message

=?UTF-8?q?No=C3=A9=20Rubinstein?= Aug. 14, 2015, 9:58 a.m. UTC
Test the config of the kernel to see if loadable module support is
enabled, and error out otherwise. This makes the build failure less
confusing.

Signed-off-by: Noé Rubinstein <nrubinstein@aldebaran.com>
---
 package/pkg-kernel-module.mk | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Yann E. MORIN Aug. 14, 2015, 10:53 p.m. UTC | #1
Noé, All,

On 2015-08-14 11:58 +0200, Noé Rubinstein spake thusly:
> Test the config of the kernel to see if loadable module support is
> enabled, and error out otherwise. This makes the build failure less
> confusing.
> 
> Signed-off-by: Noé Rubinstein <nrubinstein@aldebaran.com>
> ---
>  package/pkg-kernel-module.mk | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/package/pkg-kernel-module.mk b/package/pkg-kernel-module.mk
> index 5fb19be..e7dc33e 100644
> --- a/package/pkg-kernel-module.mk
> +++ b/package/pkg-kernel-module.mk
> @@ -60,6 +60,10 @@ $(2)_MODULE_SUBDIRS ?= .
>  # includes and other support files (Booo!)
>  define $(2)_KERNEL_MODULES_BUILD
>  	@$$(call MESSAGE,"Building kernel module(s)")
> +	@if ! grep -Fqx 'CONFIG_MODULES=y' $(LINUX_DIR)/.config; then \
> +		echo ERROR: Kernel does not support loadable modules; \

Message should be quoted (and my presonal preference is to use printf,
but echo is OK):

    echo "ERROR: Kernel does not support loadable modules"; \

> +		false; \

I prefer we 'exit 1' instead, it's much obvious what the intent is. And
that's what we used about anywhere else when we do sanity checks (see
for example toolchain/helpers.mk, most "exit 1", while a few "exit -1").

Please use "exit 1", fix the quoting, add my acked-by, and respin:

    Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

Regards,
Yann E. MORIN.

> +	fi
>  	$$(foreach d,$$($(2)_MODULE_SUBDIRS), \
>  		$$(LINUX_MAKE_ENV) $$($$(PKG)_MAKE) \
>  			-C $$(LINUX_DIR) \
> -- 
> 2.1.4
> 
> _______________________________________________
> buildroot mailing list
> buildroot@busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot
diff mbox

Patch

diff --git a/package/pkg-kernel-module.mk b/package/pkg-kernel-module.mk
index 5fb19be..e7dc33e 100644
--- a/package/pkg-kernel-module.mk
+++ b/package/pkg-kernel-module.mk
@@ -60,6 +60,10 @@  $(2)_MODULE_SUBDIRS ?= .
 # includes and other support files (Booo!)
 define $(2)_KERNEL_MODULES_BUILD
 	@$$(call MESSAGE,"Building kernel module(s)")
+	@if ! grep -Fqx 'CONFIG_MODULES=y' $(LINUX_DIR)/.config; then \
+		echo ERROR: Kernel does not support loadable modules; \
+		false; \
+	fi
 	$$(foreach d,$$($(2)_MODULE_SUBDIRS), \
 		$$(LINUX_MAKE_ENV) $$($$(PKG)_MAKE) \
 			-C $$(LINUX_DIR) \