From: Denis ChengRq <crquan@gmail.com>
Date: Mon, 4 Aug 2008 01:51:40 +0000 (+0800)
Subject: kbuild: a better way to generate cscope database change
X-Git-Tag: v2.6.27-rc3~82^2
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=64a99d2a8c3ed5c4e39f3ae1cc682aa8fd3977fc;p=linux-2.6

kbuild: a better way to generate cscope database change

It's a problem about cscope target of kernel Makefile, and the cscope
plugin of emacs:
1. `make cscope` will generate cscope.files cscope.{in,po,}.out;
2. the cscope plugin expect a cscope.out.{in,po,};
3. the default `cscope -b` would generate cscope.{in,po,}.out;

There are three approach to solve it:
1. modify the cscope C code;
2. modify the cscope emacs plugin lisp code;
3. modify the Makefile;

I have tried to communicate with the cscope upstream, but later I
realize the third approach is most meaningful.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---

diff --git a/Makefile b/Makefile
index 343ec4774b..f3e206509e 100644
--- a/Makefile
+++ b/Makefile
@@ -1492,7 +1492,7 @@ quiet_cmd_cscope-file = FILELST cscope.files
       cmd_cscope-file = (echo \-k; echo \-q; $(all-sources)) > cscope.files
 
 quiet_cmd_cscope = MAKE    cscope.out
-      cmd_cscope = cscope -b
+      cmd_cscope = cscope -b -f cscope.out
 
 cscope: FORCE
 	$(call cmd,cscope-file)