GNU Global is a great code browser.

1. Install

Please install lastest version global-6.5 from source code.

2. Quick start

$ cd kernel
$ gtags -v # make tag files: GTAGS,GRTAGS,GSYMS
...
$ global
Usage: global [-aGilnqrstTvx][-e] pattern
global -c[qrsv] prefix
global -f[anqrstvx] files
global -g[aGilnoOqtvx][-e] pattern
global -I[ailnqtvx][-e] pattern
global -P[aGilnoOqtvx][-e] pattern
global -p[qrv]
global -u[qv]
$ global -s main
drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
drivers/scsi/aic7xxx/aicasm/aicasm.c
drivers/staging/rtl8188eu/hal/HalPhyRf_8188e.c
drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h

3. Code Browser in Web Browser

$　htags --suggest # make hypertext: HTML/

Then add HTML/ folder into web server(apache/nginx). For dynamic searching in browser, we could configure web server CGI to HTML/cgi-bin folder with -f parameters of htags.

4. Support more languages

Using Pygments Plug-in Parser for GNU GLOBAL, global could parse other language by symbol match(no semantic understanding).This plugin is now bundled with GLOBAL-6.3.2 or later, but we should change the default configure through ~/.globalrc file, as mention in project page.

5. Interactive with Emacs

Using ggtags or emacs helm gtags. For example, press M-x helm-gtags-mode [RET] to enable minor mode:

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