[PATCH v1 0/1] scripts: Fix "make gtags" for O= kernel builds

[Ahmed S. Darwish]

Hi,

make gtags for O= kernel builds is currently broken. For example, when doing:

   make O=../build/ x86_64_defconfig
   make O=../build/ gtags

gtags generates a warning for each kernel source file to be indexed:

   make[1]: Entering directory '/home/darwi/build'
     GEN     gtags
   Warning: '/home/darwi/linux/arch/x86/include/asm/qspinlock.h' is out of source tree. ignored.
   Warning: '/home/darwi/linux/arch/x86/include/asm/hpet.h' is out of source tree. ignored.
   ...
   Warning: '/home/darwi/linux/virt/lib/irqbypass.c' is out of source tree. ignored.
   make[1]: Leaving directory '/home/darwi/build/'

and then generates an empty index:

   $ du -hs ~/build/G*
   16K	/home/darwi/build/GPATH
   16K	/home/darwi/build/GRTAGS
   16K	/home/darwi/build/GTAGS

This series includes a proposed fix. After applying it:

   $ make O=../build/ gtags
   make[1]: Entering directory '/home/darwi/build'
     GEN     gtags
   make[1]: Leaving directory '/home/darwi/build'

   $ du -hs ~/build/G*
   9.1M	/home/darwi/build/GPATH
   506M	/home/darwi/build/GRTAGS
   696M	/home/darwi/build/GTAGS

The generated files can then be integrated with editors or IDEs as
usual.

Thanks,

=>

Ahmed S. Darwish (1):
  scripts/tags.sh: Fix gtags generation for O= kernel builds

 scripts/tags.sh | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

base-commit: 1a5304fecee523060f26e2778d9d8e33c0562df3
--
2.30.2