kbuild: add headerdep used to detect inclusion cycles in header files

[linux-2.6-block.git] / Makefile

diff --git a/Makefile b/Makefile
index 95160e5c70e8ba33cda63e76b09afbc9bff98991..e1c5ae8a8162845b1e76c7d80542d8cf5b1a0652 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1026,6 +1026,10 @@ include/linux/version.h: $(srctree)/Makefile FORCE
 include/linux/utsrelease.h: include/config/kernel.release FORCE
        $(call filechk,utsrelease.h)
 
+PHONY += headerdep
+headerdep:
+       $(Q)find include/ -name '*.h' | xargs --max-args 1 scripts/headerdep.pl
+
 # ---------------------------------------------------------------------------
 
 PHONY += depend dep
@@ -1274,7 +1278,8 @@ help:
        @echo  '  versioncheck    - Sanity check on version.h usage'
        @echo  '  includecheck    - Check for duplicate included header files'
        @echo  '  export_report   - List the usages of all exported symbols'
-       @echo  '  headers_check   - Sanity check on exported headers'; \
+       @echo  '  headers_check   - Sanity check on exported headers'
+       @echo  '  headerdep       - Detect inclusion cycles in headers'; \
         echo  ''
        @echo  'Kernel packaging:'
        @$(MAKE) $(build)=$(package-dir) help