From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: buildroot@busybox.net
Subject: [Buildroot] Problem compiling kernel module
Date: Fri, 4 Dec 2015 14:58:08 +0100 [thread overview]
Message-ID: <20151204145808.5a0f2d9e@free-electrons.com> (raw)
In-Reply-To: <980213507.13505384.1449236247504.JavaMail.zimbra@datacom.ind.br>
Carlos,
On Fri, 4 Dec 2015 11:37:27 -0200 (BRST), Carlos Santos wrote:
> Does anybody know a better workaround? Should we try to improve
> buildroot in order to solve the problem?
The kernel Makefile uses a variable called "CF", which allows you to
pass arguments down to sparse. Can you try something like:
diff --git a/linux/linux.mk b/linux/linux.mk
index 9507837..6406d92 100644
--- a/linux/linux.mk
+++ b/linux/linux.mk
@@ -68,7 +68,8 @@ LINUX_MAKE_FLAGS = \
ARCH=$(KERNEL_ARCH) \
INSTALL_MOD_PATH=$(TARGET_DIR) \
CROSS_COMPILE="$(TARGET_CROSS)" \
- DEPMOD=$(HOST_DIR)/sbin/depmod
+ DEPMOD=$(HOST_DIR)/sbin/depmod \
+ CF="-gcc-base-dir $(STAGING_DIR)/usr"
LINUX_MAKE_ENV = \
$(TARGET_MAKE_ENV) \
This is completely untested, so you might need to adjust things a bit,
but it gives an initial idea.
Best regards,
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
prev parent reply other threads:[~2015-12-04 13:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-04 13:37 [Buildroot] Problem compiling kernel module Carlos Santos
2015-12-04 13:58 ` Thomas Petazzoni [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20151204145808.5a0f2d9e@free-electrons.com \
--to=thomas.petazzoni@free-electrons.com \
--cc=buildroot@busybox.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox