Commit ae63b2d7 authored Feb 06, 2014 by Prarit Bhargava Committed by Michal Marek Feb 06, 2014

scripts/tags.sh: Ignore *.mod.c



CONFIG_MODVERSIONS=y results in a .mod.c for every compiled file in the
kernel. Issuing a 'make cscope' on a compiled kernel tree results in
the cscope files containing *.mod.c files.

[prarit@prarit linux]# make cscope
[prarit@prarit linux]# cat cscope.files | grep mod.c | wc -l
4807

These files are not useful for cscope and should be ignored. For example,

   #   line  filename / context / line
   1    105  arch/x86/kvm/kvm-intel.mod.c <<GLOBAL>>
             { 0x618911fc, __VMLINUX_SYMBOL_STR(numa_node) },
   2    508  drivers/block/mtip32xx/mtip32xx.h <<GLOBAL>>
             int numa_node;
   3     55  drivers/block/mtip32xx/mtip32xx.mod.c <<GLOBAL>>
             { 0x618911fc, __VMLINUX_SYMBOL_STR(numa_node) },
   4     37  drivers/cpufreq/acpi-cpufreq.mod.c <<GLOBAL>>
             { 0x618911fc, __VMLINUX_SYMBOL_STR(numa_node) },
   <snip>

Add an export to RCS_FIND_IGNORE so it can be used in scripts/tags.sh
and add explicitly ignore *.mod.c files.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Kirill Tkhai <tkhai@yandex.ru>
Cc: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Michal Marek <mmarek@suse.cz>

parent 38dbfb59

Makefile

+3 −2

Original line number	Diff line number	Diff line
		@@ -414,8 +414,9 @@ export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_ve

		# Files to ignore in find ... statements

		RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \
		-o -name .pc -o -name .hg -o -name .git \) -prune -o
		export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
		-name CVS -o -name .pc -o -name .hg -o -name .git \) \
		-prune -o
		export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
		--exclude CVS --exclude .pc --exclude .hg --exclude .git

scripts/tags.sh

+4 −5

Original line number	Diff line number	Diff line
		@@ -11,11 +11,10 @@ if [ "$KBUILD_VERBOSE" = "1" ]; then
		set -x
		fi

		# This is a duplicate of RCS_FIND_IGNORE without escaped '()'
		ignore="( -name SCCS -o -name BitKeeper -o -name .svn -o \
		-name CVS -o -name .pc -o -name .hg -o \
		-name .git ) \
		-prune -o"
		# RCS_FIND_IGNORE has escaped ()s -- remove them.
		ignore="$(echo "$RCS_FIND_IGNORE" \| sed 's\|\\\|\|g' )"
		# tags and cscope files should also ignore MODVERSION *.mod.c files
		ignore="$ignore ( -name *.mod.c ) -prune -o"

		# Do not use full path if we do not use O=.. builds
		# Use make O=. {tags\|cscope}

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