From: Francis Laniel <flaniel@linux.microsoft.com>
To: buildroot@buildroot.org
Cc: Francis Laniel <flaniel@linux.microsoft.com>,
Samuel Martin <s.martin49@gmail.com>
Subject: [Buildroot] [RFC PATCH v1 2/2] linux: Add host-pahole as linux dependencies if selected by user.
Date: Tue, 21 Dec 2021 15:54:29 +0100 [thread overview]
Message-ID: <20211221145428.43829-3-flaniel@linux.microsoft.com> (raw)
In-Reply-To: <20211221145428.43829-1-flaniel@linux.microsoft.com>
If user set BR2_PACKAGE_HOST_PAHOLE, we add host-pahole to linux dependencies in
case the user also wants to compile the kernel with CONFIG_DEBUG_BTF_INFO which
relies on pahole to generate BTF information used by CO-RE BPF tools.
Signed-off-by: Francis Laniel <flaniel@linux.microsoft.com>
---
linux/linux.mk | 6 ++++++
package/pahole/Config.in.host | 2 ++
2 files changed, 8 insertions(+)
diff --git a/linux/linux.mk b/linux/linux.mk
index 61fdc0c76c..057d898c86 100644
--- a/linux/linux.mk
+++ b/linux/linux.mk
@@ -120,6 +120,12 @@ ifeq ($(BR2_PACKAGE_HOST_UBOOT_TOOLS),y)
LINUX_DEPENDENCIES += host-uboot-tools
endif
+# If host-pahole is selected by the user, assume it is needed to create a custom
+# kernel with CONFIG_DEBUG_INFO_BTF.
+ifeq ($(BR2_PACKAGE_HOST_PAHOLE),y)
+LINUX_DEPENDENCIES += host-pahole
+endif
+
ifneq ($(ARCH_XTENSA_OVERLAY_FILE),)
define LINUX_XTENSA_OVERLAY_EXTRACT
$(call arch-xtensa-overlay-extract,$(@D),linux)
diff --git a/package/pahole/Config.in.host b/package/pahole/Config.in.host
index e427629632..521874961b 100644
--- a/package/pahole/Config.in.host
+++ b/package/pahole/Config.in.host
@@ -3,4 +3,6 @@ config BR2_PACKAGE_HOST_PAHOLE
help
Pahole and other DWARF utils.
+ Select this if you want to build a kernel with CONFIG_DEBUG_INFO_BTF set.
+
https://git.kernel.org/pub/scm/devel/pahole/pahole.git
--
2.30.2
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next prev parent reply other threads:[~2021-12-21 15:01 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-21 14:54 [Buildroot] [RFC PATCH v1 0/2] Enable BTF headers for Linux kernel Francis Laniel
2021-12-21 14:54 ` [Buildroot] [RFC PATCH v1 1/2] package/pahole: new host package Francis Laniel
2021-12-21 21:44 ` Arnout Vandecappelle
2021-12-22 17:32 ` Francis Laniel
2021-12-21 14:54 ` Francis Laniel [this message]
2021-12-21 21:58 ` [Buildroot] [RFC PATCH v1 2/2] linux: Add host-pahole as linux dependencies if selected by user Arnout Vandecappelle
2021-12-22 17:33 ` Francis Laniel
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