diff options
Diffstat (limited to 'scripts/Makefile.modpost')
| -rw-r--r-- | scripts/Makefile.modpost | 75 |
1 files changed, 53 insertions, 22 deletions
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost index 957eed6a17a5..3651cbf6ad49 100644 --- a/scripts/Makefile.modpost +++ b/scripts/Makefile.modpost @@ -43,34 +43,30 @@ __modpost: include include/config/auto.conf include scripts/Kbuild.include -kernelsymfile := $(objtree)/Module.symvers -modulesymfile := $(firstword $(KBUILD_EXTMOD))/Module.symvers - MODPOST = scripts/mod/modpost \ $(if $(CONFIG_MODVERSIONS),-m) \ $(if $(CONFIG_MODULE_SRCVERSION_ALL),-a) \ - $(if $(KBUILD_EXTMOD),-i,-o) $(kernelsymfile) \ - $(if $(KBUILD_EXTMOD),$(addprefix -e ,$(KBUILD_EXTRA_SYMBOLS))) \ - $(if $(KBUILD_EXTMOD),-o $(modulesymfile)) \ $(if $(CONFIG_SECTION_MISMATCH_WARN_ONLY),,-E) \ - $(if $(CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS)$(KBUILD_NSDEPS),-N) \ - $(if $(KBUILD_MODPOST_WARN),-w) + $(if $(KBUILD_MODPOST_WARN),-w) \ + -o $@ ifdef MODPOST_VMLINUX -quiet_cmd_modpost = MODPOST vmlinux.o - cmd_modpost = $(MODPOST) vmlinux.o +quiet_cmd_modpost = MODPOST $@ + cmd_modpost = $(MODPOST) $< -__modpost: +vmlinux.symvers: vmlinux.o $(call cmd,modpost) -else +__modpost: vmlinux.symvers -MODPOST += $(subst -i,-n,$(filter -i,$(MAKEFLAGS))) -s -T - \ - $(if $(KBUILD_NSDEPS),-d $(MODULES_NSDEPS)) +else ifeq ($(KBUILD_EXTMOD),) -MODPOST += $(wildcard vmlinux) + +input-symdump := vmlinux.symvers +output-symdump := Module.symvers + else # set src + obj - they may be used in the modules's Makefile @@ -80,22 +76,57 @@ src := $(obj) # Include the module's Makefile to find KBUILD_EXTRA_SYMBOLS include $(if $(wildcard $(KBUILD_EXTMOD)/Kbuild), \ $(KBUILD_EXTMOD)/Kbuild, $(KBUILD_EXTMOD)/Makefile) + +# modpost option for external modules +MODPOST += -e + +input-symdump := Module.symvers $(KBUILD_EXTRA_SYMBOLS) +output-symdump := $(KBUILD_EXTMOD)/Module.symvers + +endif + +# modpost options for modules (both in-kernel and external) +MODPOST += \ + $(addprefix -i ,$(wildcard $(input-symdump))) \ + $(if $(KBUILD_NSDEPS),-d $(MODULES_NSDEPS)) \ + $(if $(CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS)$(KBUILD_NSDEPS),-N) + +# 'make -i -k' ignores compile errors, and builds as many modules as possible. +ifneq ($(findstring i,$(filter-out --%,$(MAKEFLAGS))),) +MODPOST += -n endif -# find all modules listed in modules.order -modules := $(sort $(shell cat $(MODORDER))) +# Clear VPATH to not search for *.symvers in $(srctree). Check only $(objtree). +VPATH := +$(input-symdump): + @echo >&2 'WARNING: Symbol version dump "$@" is missing.' + @echo >&2 ' Modules may not have dependencies or modversions.' -# Read out modules.order instead of expanding $(modules) to pass in modpost. +# Read out modules.order to pass in modpost. # Otherwise, allmodconfig would fail with "Argument list too long". -quiet_cmd_modpost = MODPOST $(words $(modules)) modules - cmd_modpost = sed 's/ko$$/o/' $(MODORDER) | $(MODPOST) +quiet_cmd_modpost = MODPOST $@ + cmd_modpost = sed 's/ko$$/o/' $< | $(MODPOST) -T - -__modpost: - $(call cmd,modpost) +$(output-symdump): $(MODORDER) $(input-symdump) FORCE + $(call if_changed,modpost) + +targets += $(output-symdump) + +__modpost: $(output-symdump) ifneq ($(KBUILD_MODPOST_NOFINAL),1) $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modfinal endif +PHONY += FORCE +FORCE: + +existing-targets := $(wildcard $(sort $(targets))) + +-include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd) + +PHONY += FORCE +FORCE: + endif .PHONY: $(PHONY) |