YCM-Generator returns "ERROR: No commands were logged to the build log" about ycm-generator

[rdnetto]

Try running ./config_gen.py -v $PRJROOT in the terminal, and paste the output from that here.
The -v flag will display all output from the build process, which should contain whatever error is causing it to fail.

[jeromesun14]

I got "System not configured - see README" when I used -v flag. I used grep -r "System not configure" or other key word to find where this log was printed, but it outputed nothing.

Here is the log with -v option:

sunyongfeng@syf ~/.vim/bundle/YCM-Generator $ ./config_gen.py -v ~/src/uboot/
Preparing build directory...
$ make clean

Running make...
$ make -i -j2
System not configured - see README
make: [all] Error 1 (ignored)
Build completed in 0.09 sec
ERROR: No commands were logged to the build log (/tmp/tmpjFSs7K).
Your build system may not be compatible.
sunyongfeng@syf ~/.vim/bundle/YCM-Generator $ 

And also, there may be another issue: the default clang command is clang-3.6, but YCM-Generator cannot recognize it automatically, and I have to make a soft link myself to make YCM-Generator get the clang command.

sunyongfeng@syf ~/.vim/bundle/YCM-Generator $ ./config_gen.py -v ~/src/uboot/
ERROR: Could not find clang. Please make sure it is installed and is either in your path, or specified with --compiler.
sunyongfeng@syf ~/.vim/bundle/YCM-Generator $ 
sunyongfeng@syf ~/.vim/bundle/YCM-Generator $ sudo ln -s /usr/bin/clang-3.6 /usr/bin/clang
sunyongfeng@syf ~/.vim/bundle/YCM-Generator $ ls -al /usr/bin/clang
lrwxrwxrwx 1 root root 18  5月 10 12:41 /usr/bin/clang -> /usr/bin/clang-3.6

[rdnetto]

OK, that explains it. "System not configured" is an error from uboot. If I understand your first post correctly, uboot expects those variables to be defined and fails if they aren't. The solution is to use the -e flag, which preserves existing environment variables.

As an alternative to manually creating a symlink for clang, you can also use -c clang-3.6.

[jeromesun14]

There is no -e flag supported.

sunyongfeng@syf ~/.vim/bundle/YCM-Generator $ ./config_gen.py -v -e ~/src/uboot/
usage: config_gen.py [-h] [-v] [-m MAKE] [-c COMPILER] [-C CONFIGURE_OPTS]
                     [-M MAKE_FLAGS] [-o OUTPUT] [--out-of-tree]
                     PROJECT_DIR
config_gen.py: error: unrecognized arguments: -e

[rdnetto]

Oops, I forgot that was still on the development branch. Just merged it into stable - run git pull and try again.

[jeromesun14]

It can generate YCM configuration file now, but when I use vim, autocomplete members of a structure failed. I will try to find out what's wrong.

Another question: ./config_gen.py -v -e ~/src/uboot/ seems to compile all the files, it's a real compile process but not the fake one as you mentioned, and that takes really too much time.

[rdnetto]

Interesting. Can you give me a link to the git repo? Uboot is big enough that it's possible they're using their own infrastructure for determining the compiler...

[jeromesun14]

Sorry, the code I used is not the original uboot, and I cannot distribute it by my own. I will try the kernel source to check if there is something wrong with my operations.

[rdnetto]

OK, that's fair enough. Let me know if you can reproduce the problem with the original, otherwise I'm not going to be able to be of much help.