[Buildroot] [git commit] linux: add BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL

Peter Korsgaard peter at korsgaard.com
Tue Mar 6 14:25:08 UTC 2018


commit: https://git.buildroot.net/buildroot/commit/?id=93a7edf4bc9bfcf821f608815870d06198eb2adf
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master

Some Linux kernel configuration options (such as
CONFIG_SYSTEM_TRUSTED_KEYRING) require building a host program called
extract-cert, which itself needs OpenSSL.

Users having OpenSSL installed on their system won't see a problem,
but users who don't have OpenSSL installed will get a build
failure. This commit adds a new option that allows users to indicate
that their Linux configuration requires building host-openssl.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni at bootlin.com>
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
---
 linux/Config.in | 13 +++++++++++++
 linux/linux.mk  |  4 ++++
 2 files changed, 17 insertions(+)

diff --git a/linux/Config.in b/linux/Config.in
index bc6cd1b5f7..57bb11c2cd 100644
--- a/linux/Config.in
+++ b/linux/Config.in
@@ -407,6 +407,19 @@ config BR2_LINUX_KERNEL_INSTALL_TARGET
 	  /boot if DTBs have been generated by the kernel build
 	  process.
 
+config BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL
+	bool "Needs host OpenSSL"
+	help
+	  Some Linux kernel configuration options (such as
+	  CONFIG_SYSTEM_TRUSTED_KEYRING) require building a host
+	  program called extract-cert, which itself needs
+	  OpenSSL. Enabling this option will ensure host-openssl gets
+	  built before the Linux kernel.
+
+	  Enable this option if you get a Linux kernel build failure
+	  such as "scripts/extract-cert.c:21:25: fatal error:
+	  openssl/bio.h: No such file or directory".
+
 # Linux extensions
 source "linux/Config.ext.in"
 
diff --git a/linux/linux.mk b/linux/linux.mk
index 3b69524663..91d8751a71 100644
--- a/linux/linux.mk
+++ b/linux/linux.mk
@@ -80,6 +80,10 @@ LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_LZMA) += CONFIG_KERNEL_LZMA
 LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_LZO) += CONFIG_KERNEL_LZO
 LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_XZ) += CONFIG_KERNEL_XZ
 
+ifeq ($(BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL),y)
+LINUX_DEPENDENCIES += host-openssl
+endif
+
 # If host-uboot-tools is selected by the user, assume it is needed to
 # create a custom image
 ifeq ($(BR2_PACKAGE_HOST_UBOOT_TOOLS),y)


More information about the buildroot mailing list