| Message ID | 20240115001606.15477-1-richard.weiyang@gmail.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | kbuild: take vmlinux.[ao] out of single-targets | expand |
On Mon, Jan 15, 2024 at 9:17 AM Wei Yang <richard.weiyang@gmail.com> wrote: > > 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@gmail.com> > CC: Masahiro Yamada <masahiroy@kernel.org> > CC: Miguel Ojeda <ojeda@kernel.org> > CC: Nathan Chancellor <nathan@kernel.org> > --- Not all targets can be built by the single-target. Just do not do "make vmlinux.o". > 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 >
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.
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@gmail.com> CC: Masahiro Yamada <masahiroy@kernel.org> CC: Miguel Ojeda <ojeda@kernel.org> CC: Nathan Chancellor <nathan@kernel.org> --- Makefile | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)