how can I display all function name from cscope database?

问题

I am trying to find a way to dump ALL the functions name and it's path from cscope database. Is there a way to do that from cscope CLI?

Note: the cscope source code is available for download.

回答1:

Try the following:

cscope -R -L -2 ".*" | awk -F ' ' '{print $2 "#" $1}' | sort | uniq

1. The command cscope -R -L -2 ".*" will output functions called by any function (see explanation of the options below). For each reference found, cscope outputs a line consisting of the file name, function name, line number, and line text, separated by spaces.
2. Use awk to extract the function name $2 and file name $1 separated by #. Change $2, $1 and the separator # if you need other output fields or separator.
3. Sort the output with sort.
4. Get unique items with uniq.

cscope options (see http://cscope.sourceforge.net/cscope_man_page.html):

• -R Recurse subdirectories for source files.

• -L Do a single search with line-oriented output when used with the -num pattern option.

• -2 ".*" Go to input field num (here 0-based field 2) and find pattern (here .* for all). You can see the input fields in cscope's screen mode. This may vary depending on the version you are using. The fields for version 15.8a under debian are:

  • 0: Find this C symbol:
  • 1: Find this global definition:
  • 2: Find functions called by this function:
  • 3: Find functions calling this function:
  • 4: Find this text string:
  • 5: Change this text string:
  • 6: Find this egrep pattern:
  • 7: Find this file:
  • 8: Find files #including this file:

来源：https://stackoverflow.com/questions/23766566/how-can-i-display-all-function-name-from-cscope-database