[x86] prepare kernel 2.6.32 support

[openwrt.git] / include / kernel-build.mk

diff --git a/include/kernel-build.mk b/include/kernel-build.mk
index d48f8b9..6214058 100644 (file)
--- a/include/kernel-build.mk
+++ b/include/kernel-build.mk
@@ -54,6 +54,28 @@ define BuildKernel
        $(Kernel/Prepare)
        touch $$@
 
+  $(KERNEL_BUILD_DIR)/symtab.txt: FORCE
+       find $(LINUX_DIR) $(STAGING_DIR_ROOT)/lib/modules -name \*.ko | \
+               xargs $(TARGET_CROSS)nm | \
+               awk '$$$$1 == "U" { print $$$$2 } ' | \
+               sort -u > $$@
+
+  $(KERNEL_BUILD_DIR)/symtab.h: $(KERNEL_BUILD_DIR)/symtab.txt
+       ( \
+               echo '#define SYMTAB_KEEP \'; \
+               cat $(KERNEL_BUILD_DIR)/symtab.txt | \
+                       awk '{print "*(__ksymtab." $$$$1 ") \\" }'; \
+               echo; \
+               echo '#define SYMTAB_KEEP_GPL \'; \
+               cat $(KERNEL_BUILD_DIR)/symtab.txt | \
+                       awk '{print "*(__ksymtab_gpl." $$$$1 ") \\" }'; \
+               echo; \
+               echo '#define SYMTAB_KEEP_STR \'; \
+               cat $(KERNEL_BUILD_DIR)/symtab.txt | \
+                       awk '{print "*(__ksymtab_strings." $$$$1 ") \\" }'; \
+               echo; \
+       ) > $$@
+
   $(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_CONFIG) $(GENERIC_LINUX_CONFIG) $(TOPDIR)/.config
        $(Kernel/Configure)
        touch $$@
@@ -62,7 +84,7 @@ define BuildKernel
        $(Kernel/CompileModules)
        touch $$@
 
-  $(LINUX_DIR)/.image: $(STAMP_CONFIGURED) FORCE
+  $(LINUX_DIR)/.image: $(STAMP_CONFIGURED) $(if $(CONFIG_STRIP_KERNEL_EXPORTS),$(KERNEL_BUILD_DIR)/symtab.h) FORCE
        $(Kernel/CompileImage)
        touch $$@
        
@@ -82,7 +104,9 @@ define BuildKernel
        $(LINUX_CONFCMD) > $(LINUX_DIR)/.config
        touch $(LINUX_CONFIG)
        $(_SINGLE)$(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) $$@
-       $(SCRIPT_DIR)/kconfig.pl '>' $(GENERIC_LINUX_CONFIG) $(LINUX_DIR)/.config > $(if $(LINUX_SUBCONFIG),$(LINUX_SUBCONFIG),$(LINUX_CONFIG))
+       $(SCRIPT_DIR)/kconfig.pl '>' $(if $(LINUX_SUBCONFIG),'+' $(GENERIC_LINUX_CONFIG) $(LINUX_CONFIG),$(GENERIC_LINUX_CONFIG)) \
+               $(LINUX_DIR)/.config > $(if $(LINUX_SUBCONFIG),$(LINUX_SUBCONFIG),$(LINUX_CONFIG))
+       LC_ALL='' sort $(if $(LINUX_SUBCONFIG),$(LINUX_SUBCONFIG),$(LINUX_CONFIG)) -o $(if $(LINUX_SUBCONFIG),$(LINUX_SUBCONFIG),$(LINUX_CONFIG))
        $(Kernel/Configure)
 
   install: $(LINUX_DIR)/.image