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| author | Thomas Petazzoni <thomas.petazzoni@bootlin.com> | 2018-03-04 22:31:16 +0100 |
|---|---|---|
| committer | Peter Korsgaard <peter@korsgaard.com> | 2018-03-06 15:25:08 +0100 |
| commit | f7cd72b3d4e2b1d993c293e355e350bedbed4eab (patch) | |
| tree | 741037e8ef8f981e130d6493b1d1c49f717174d8 | |
| parent | 93a7edf4bc9bfcf821f608815870d06198eb2adf (diff) | |
| download | buildroot-f7cd72b3d4e2b1d993c293e355e350bedbed4eab.tar.gz buildroot-f7cd72b3d4e2b1d993c293e355e350bedbed4eab.zip | |
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>
| -rw-r--r-- | linux/Config.in | 13 | ||||
| -rw-r--r-- | linux/linux.mk | 4 |
2 files changed, 17 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" diff --git a/linux/linux.mk b/linux/linux.mk index 91d8751a71..28d799f946 100644 --- a/linux/linux.mk +++ b/linux/linux.mk @@ -84,6 +84,10 @@ ifeq ($(BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL),y) LINUX_DEPENDENCIES += host-openssl endif +ifeq ($(BR2_LINUX_KERNEL_NEEDS_HOST_LIBELF),y) +LINUX_DEPENDENCIES += host-elfutils +endif + # If host-uboot-tools is selected by the user, assume it is needed to # create a custom image ifeq ($(BR2_PACKAGE_HOST_UBOOT_TOOLS),y) |
