From ea837f1c050344c3f884531a195c6e339b1a54e8 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg <sam@neptun.ravnborg.org> Date: Sun, 1 Oct 2006 11:35:24 +0200 Subject: [PATCH] kbuild: make modpost processing configurable On request from Al Viro make modpost processing configurable. KBUILD_MODPOST_WARN can be set to make modpost warn instead of error out in case on unresolved symbols in final module link. KBUILD_MODPOST_NOFINAL can be set to avoid the final and timeconsuming .c file generation and link of .ko files. This is solely useful for speeding up when doing compile checks with for example allmodconfig Signed-off-by: Sam Ravnborg <sam@ravnborg.org> --- scripts/Makefile.modpost | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost index 4b2721ca97da3..6c5469b1473be 100644 --- a/scripts/Makefile.modpost +++ b/scripts/Makefile.modpost @@ -32,6 +32,10 @@ # Step 4 is solely used to allow module versioning in external modules, # where the CRC of each module is retrieved from the Module.symers file. +# KBUILD_MODPOST_WARN can be set to avoid error out in case of undefined +# symbols in the final module linking stage +# KBUILD_MODPOST_NOFINAL can be set to skip the final link of modules. +# This is solely usefull to speed up test compiles PHONY := _modpost _modpost: __modpost @@ -46,7 +50,8 @@ modulesymfile := $(KBUILD_EXTMOD)/Module.symvers __modules := $(sort $(shell grep -h '\.ko' /dev/null $(wildcard $(MODVERDIR)/*.mod))) modules := $(patsubst %.o,%.ko, $(wildcard $(__modules:.ko=.o))) -_modpost: $(modules) +# Stop after building .o files if NOFINAL is set. Makes compile tests quicker +_modpost: $(if $(KBUILD_MODPOST_NOFINAL), $(modules:.ko:.o),$(modules)) # Step 2), invoke modpost @@ -58,7 +63,7 @@ quiet_cmd_modpost = MODPOST $(words $(filter-out vmlinux FORCE, $^)) modules $(if $(KBUILD_EXTMOD),-i,-o) $(kernelsymfile) \ $(if $(KBUILD_EXTMOD),-I $(modulesymfile)) \ $(if $(KBUILD_EXTMOD),-o $(modulesymfile)) \ - $(if $(KBUILD_EXTMOD),-w) \ + $(if $(KBUILD_EXTMOD)$(KBUILD_MODPOST_WARN),-w) \ $(wildcard vmlinux) $(filter-out FORCE,$^) PHONY += __modpost @@ -92,7 +97,7 @@ targets += $(modules:.ko=.mod.o) # Step 6), final link of the modules quiet_cmd_ld_ko_o = LD [M] $@ - cmd_ld_ko_o = $(LD) $(LDFLAGS) $(LDFLAGS_MODULE) -o $@ \ + cmd_ld_ko_o = $(LD) $(LDFLAGS) $(LDFLAGS_MODULE) -o $@ \ $(filter-out FORCE,$^) $(modules): %.ko :%.o %.mod.o FORCE -- GitLab