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-rw-r--r--include/kernel.mk27
1 files changed, 27 insertions, 0 deletions
diff --git a/include/kernel.mk b/include/kernel.mk
index 75797cf17e..f2099add53 100644
--- a/include/kernel.mk
+++ b/include/kernel.mk
@@ -123,6 +123,32 @@ ifdef CONFIG_USE_SPARSE
KERNEL_MAKEOPTS += C=1 CHECK=$(STAGING_DIR_HOST)/bin/sparse
endif
+PKG_EXTMOD_SUBDIRS ?= .
+
+define populate_module_symvers
+ cat /dev/null > $(PKG_INFO_DIR)/$(PKG_NAME).symvers; \
+ for subdir in $(PKG_EXTMOD_SUBDIRS); do \
+ cat $(PKG_INFO_DIR)/*.symvers 2>/dev/null > $(PKG_BUILD_DIR)/$$$$subdir/Module.symvers; \
+ done
+endef
+
+define collect_module_symvers
+ for subdir in $(PKG_EXTMOD_SUBDIRS); do \
+ grep -F $(PKG_BUILD_DIR) $(PKG_BUILD_DIR)/$$$$subdir/Module.symvers >> $(PKG_BUILD_DIR)/Module.symvers.tmp; \
+ done; \
+ sort -u $(PKG_BUILD_DIR)/Module.symvers.tmp > $(PKG_BUILD_DIR)/Module.symvers; \
+ mv $(PKG_BUILD_DIR)/Module.symvers $(PKG_INFO_DIR)/$(PKG_NAME).symvers
+endef
+
+define KernelPackage/hooks
+ ifneq ($(PKG_NAME),kernel)
+ Hooks/Compile/Pre += populate_module_symvers
+ Hooks/Compile/Post += collect_module_symvers
+ endif
+ define KernelPackage/hooks
+ endef
+endef
+
define KernelPackage/Defaults
FILES:=
AUTOLOAD:=
@@ -230,6 +256,7 @@ $(call KernelPackage/$(1)/config)
endif
$(call KernelPackage/depends)
+ $(call KernelPackage/hooks)
ifneq ($(if $(filter-out %=y %=n %=m,$(KCONFIG)),$(filter m y,$(foreach c,$(filter-out %=y %=n %=m,$(KCONFIG)),$($(c)))),.),)
ifneq ($(strip $(FILES)),)