linux-kernel - [PATCH 1/3] kbuild: add dependency from vmlinux to resolve

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Message-Id: <20241123-resolve_btfids-v1-1-927700b641d1@weissschuh.net>
Date: Sat, 23 Nov 2024 14:33:37 +0100
From: Thomas Weißschuh <linux@...ssschuh.net>
To: Masahiro Yamada <masahiroy@...nel.org>, 
 Nathan Chancellor <nathan@...nel.org>, Nicolas Schier <nicolas@...sle.eu>, 
 Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, 
 Andrii Nakryiko <andrii@...nel.org>, 
 Martin KaFai Lau <martin.lau@...ux.dev>, 
 Eduard Zingerman <eddyz87@...il.com>, Song Liu <song@...nel.org>, 
 Yonghong Song <yonghong.song@...ux.dev>, 
 John Fastabend <john.fastabend@...il.com>, KP Singh <kpsingh@...nel.org>, 
 Stanislav Fomichev <sdf@...ichev.me>, Hao Luo <haoluo@...gle.com>, 
 Jiri Olsa <jolsa@...nel.org>
Cc: linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org, 
 bpf@...r.kernel.org, 
 Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH 1/3] kbuild: add dependency from vmlinux to resolve_btfids

resolve_btfids is used by link-vmlinux.sh.
In contrast to other configuration options and targets no transitive
dependency between resolve_btfids and vmlinux.
Add an explicit one.

Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
 scripts/Makefile.vmlinux | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/scripts/Makefile.vmlinux b/scripts/Makefile.vmlinux
index 1284f05555b97f726c6d167a09f6b92f20e120a2..599b486adb31cfb653e54707b7d77052d372b7c1 100644
--- a/scripts/Makefile.vmlinux
+++ b/scripts/Makefile.vmlinux
@@ -32,6 +32,9 @@ cmd_link_vmlinux =							\
 targets += vmlinux
 vmlinux: scripts/link-vmlinux.sh vmlinux.o $(KBUILD_LDS) FORCE
 	+$(call if_changed_dep,link_vmlinux)
+ifdef CONFIG_DEBUG_INFO_BTF
+vmlinux: $(RESOLVE_BTFIDS)
+endif
 
 # module.builtin.ranges
 # ---------------------------------------------------------------------------

-- 
2.47.0