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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>
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@ -1492,7 +1492,7 @@ quiet_cmd_cscope-file = FILELST cscope.files
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cmd_cscope-file = (echo \-k; echo \-q; $(all-sources)) > cscope.files
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quiet_cmd_cscope = MAKE cscope.out
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cmd_cscope = cscope -b
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cmd_cscope = cscope -b -f cscope.out
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cscope: FORCE
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$(call cmd,cscope-file)
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