Question

I have a very large code, a lot of which is legacy code.
I want to know which of all these files are taking part in the compilation.
The code is written in GNU compilers and mostly in C/C++, but some in other programs too.
Any advice will be highly appreciated.

Thanks,

Moshe.

I am compiling under linux with a mix of scripts/makefiles. I want to somehow ‘wrap’ this build with a tool which will give an output of all the source files used in the build, preferably with absolute path names.

What do you say?

Answer 1

Two options come to mind.

1. Parse the compilation log

   Run a build, save the log, and then search in the log.

2. Find the files that are opened during the compilation time.

   A way to do that might be to use a system tracing tool like strace or library tracing tool like ltrace and then look out for file open calls.

   See also How can I detect file accesses in Linux?