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@xxxxxxxxx> CC: Masahiro Yamada <masahiroy@xxxxxxxxxx> CC: Miguel Ojeda <ojeda@xxxxxxxxxx> CC: Nathan Chancellor <nathan@xxxxxxxxxx> --- 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
