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authorGravatar Thomas Petazzoni <thomas.petazzoni@bootlin.com>2018-03-04 22:31:16 +0100
committerGravatar Peter Korsgaard <peter@korsgaard.com>2018-03-06 15:25:08 +0100
commitf7cd72b3d4e2b1d993c293e355e350bedbed4eab (patch)
tree741037e8ef8f981e130d6493b1d1c49f717174d8 /linux/Config.in
parent93a7edf4bc9bfcf821f608815870d06198eb2adf (diff)
downloadbuildroot-f7cd72b3d4e2b1d993c293e355e350bedbed4eab.tar.gz
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linux: add BR2_LINUX_KERNEL_NEEDS_HOST_LIBELF
Some Linux kernel configuration options (such as CONFIG_UNWINDER_ORC) require building a host program that needs libelf. Users who have libelf installed on their system won't see a problem, but users who don't have libelf installed will get a build failure. Therefore, this commit adds an option that allows a user to indicate that his Linux kernel configuration requires libelf. When this option is enabled, we add host-elfutils to the dependencies of the linux package (host-elfutils provides the libelf library). Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Diffstat (limited to 'linux/Config.in')
-rw-r--r--linux/Config.in13
1 files changed, 13 insertions, 0 deletions
diff --git a/linux/Config.in b/linux/Config.in
index 57bb11c2cd..e299af4008 100644
--- a/linux/Config.in
+++ b/linux/Config.in
@@ -420,6 +420,19 @@ config BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL
such as "scripts/extract-cert.c:21:25: fatal error:
openssl/bio.h: No such file or directory".
+config BR2_LINUX_KERNEL_NEEDS_HOST_LIBELF
+ bool "Needs host libelf"
+ help
+ Some Linux kernel configuration options (such as
+ CONFIG_UNWINDER_ORC) require building a host program that
+ needs libelf. Enabling this option will ensure host-elfutils
+ (which provides libelf) gets built before the Linux kernel.
+
+ Enable this option if you get a Linux kernel build failure
+ such as "Cannot generate ORC metadata for
+ CONFIG_UNWINDER_ORC=y, please install libelf-dev,
+ libelf-devel or elfutils-libelf-devel".
+
# Linux extensions
source "linux/Config.ext.in"