Basic implementation of 'make headers_check'
Based on the 'headers_install' target, this performs a basic sanity check
on the exported headers -- so far only checking that they do not include
any other headers which aren't selected for import, but easily extendable.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index 688f8cb..aa9990a 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -78,6 +78,11 @@
cmd_unifdef = $(UNIFDEF) $(srctree)/$(obj)/$@ | $(HDRSED) \
> $(INSTALL_HDR_PATH)/$(_dst)/$@ || :
+quiet_cmd_check = CHECK $(_dst)/$@
+ cmd_check = $(srctree)/scripts/hdrcheck.sh \
+ $(INSTALL_HDR_PATH)/include \
+ $(INSTALL_HDR_PATH)/$(_dst)/$@
+
quiet_cmd_mkdir = MKDIR $@
cmd_mkdir = mkdir -p $(INSTALL_HDR_PATH)/$@
@@ -112,6 +117,11 @@
.PHONY: $(header-y) $(unifdef-y) $(subdir-y)
+ifdef HDRCHECK
+# Rules for checking headers
+$(objhdr-y) $(header-y) $(unifdef-y):
+ $(call cmd,check)
+else
# Rules for installing headers
$(objhdr-y) $(subdir-y) $(header-y) $(unifdef-y): $(_dst)
@@ -134,6 +144,7 @@
$(unifdef-y):
$(call cmd,unifdef)
endif
+endif
hdrinst := -rR -f $(srctree)/scripts/Makefile.headersinst obj
diff --git a/scripts/hdrcheck.sh b/scripts/hdrcheck.sh
new file mode 100755
index 0000000..b3bb683
--- /dev/null
+++ b/scripts/hdrcheck.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+for FILE in `grep '^#include <' $2 | cut -f2 -d\< | cut -f1 -d\> | egrep ^linux\|^asm` ; do
+ if [ ! -r $1/$FILE ]; then
+ echo $2 requires $FILE, which does not exist
+ exit 1
+ fi
+done