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Message-Id: <20240115001606.15477-1-richard.weiyang@gmail.com>
Date: Mon, 15 Jan 2024 00:16:06 +0000
From: Wei Yang <richard.weiyang@...il.com>
To: masahiroy@...nel.org,
nathan@...nel.org,
nicolas@...sle.eu
Cc: linux-kbuild@...r.kernel.org,
linux-kernel@...r.kernel.org,
Wei Yang <richard.weiyang@...il.com>,
Miguel Ojeda <ojeda@...nel.org>
Subject: [PATCH] kbuild: take vmlinux.[ao] out of single-targets
For current kernel, when we make vmlinux.a or vmlinux.o, following
message would display.
$make vmlinux.o
/dir/to/kernel/Makefile:1887: warning: overriding recipe for target 'vmlinux.o'
/dir/to/kernel/Makefile:1138: warning: ignoring old recipe for target 'vmlinux.o'
CALL scripts/checksyscalls.sh
DESCEND objtool
INSTALL libsubcmd_headers
make[2]: Nothing to be done for 'vmlinux.o'.
The reason is vmlinux.[ao] is treated as single target, while the rule
is written in root Makefile.
This patch fixes this by take them out of single-targets.
Signed-off-by: Wei Yang <richard.weiyang@...il.com>
CC: Masahiro Yamada <masahiroy@...nel.org>
CC: Miguel Ojeda <ojeda@...nel.org>
CC: Nathan Chancellor <nathan@...nel.org>
---
Makefile | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
index f1b2fd977275..66fb08f6d971 100644
--- a/Makefile
+++ b/Makefile
@@ -280,6 +280,7 @@ no-dot-config-targets := $(clean-targets) \
no-sync-config-targets := $(no-dot-config-targets) %install modules_sign kernelrelease \
image_name
single-targets := %.a %.i %.ko %.lds %.ll %.lst %.mod %.o %.rsi %.s %.symtypes %/
+no-single-targets := vmlinux.o vmlinux.a
config-build :=
mixed-build :=
@@ -315,11 +316,14 @@ ifeq ($(KBUILD_EXTMOD),)
endif
# We cannot build single targets and the others at the same time
-ifneq ($(filter $(single-targets), $(MAKECMDGOALS)),)
+ifneq ($(filter-out $(no-single-targets), $(filter $(single-targets), $(MAKECMDGOALS))),)
single-build := 1
ifneq ($(filter-out $(single-targets), $(MAKECMDGOALS)),)
mixed-build := 1
endif
+ ifneq ($(filter $(no-single-targets), $(MAKECMDGOALS)),)
+ mixed-build := 1
+ endif
endif
# For "make -j clean all", "make -j mrproper defconfig all", etc.
--
2.34.1
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