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Date: Thu, 6 Feb 2014 07:51:42 -0500
From: Prarit Bhargava <prarit@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: Prarit Bhargava <prarit@...hat.com>, Michal Marek <mmarek@...e.cz>,
Andrew Morton <akpm@...ux-foundation.org>,
Kirill Tkhai <tkhai@...dex.ru>,
Michael Opdenacker <michael.opdenacker@...e-electrons.com>,
Rusty Russell <rusty@...tcorp.com.au>,
linux-kbuild@...r.kernel.org
Subject: [PATCH] Makefile, CONFIG_MODVERSIONS, export RCS_FIND_IGNORE and ignore *.mod.c files in tags creation
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@...rit linux]# make cscope
[prarit@...rit 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@...hat.com>
Cc: Michal Marek <mmarek@...e.cz>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Kirill Tkhai <tkhai@...dex.ru>
Cc: Michael Opdenacker <michael.opdenacker@...e-electrons.com>
Cc: Rusty Russell <rusty@...tcorp.com.au>
Cc: linux-kbuild@...r.kernel.org
---
Makefile | 5 +++--
scripts/tags.sh | 9 ++++-----
2 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/Makefile b/Makefile
index 606ef7c..2acd9dd 100644
--- a/Makefile
+++ b/Makefile
@@ -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
diff --git a/scripts/tags.sh b/scripts/tags.sh
index 58c4559..f2c5b00 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -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}
--
1.7.9.3
--
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