How to make gradle print or write all executed compiler commands?

Question

I am trying to see the exact compiler commands (in my case gcc) used by gradle during all build tasks. Executing with --debugdoes not output these commands, and the output files in build / tmp also do not have them. I am currently using gradle 2.6

Answer 1

Cm. $projectDir/build/tmp

You should have a folder structure that looks something like this:

├───compileMainSharedLibraryMainCpp
│       options.txt
│       output.txt
│
├───compileMainStaticLibraryMainCpp
│       options.txt
│       output.txt
│
├───createMainStaticLibrary
│       options.txt
│       output.txt
│
└───linkMainSharedLibrary
        options.txt
        output.txt

options.txtcontains parameters passed to the compiler / linker, etc., and output.txtcontains the output of the compiler / linker.

Answer 2

The following snippet in build.gradle displays the parameters (not a complete command line):

toolChains {
    gcc(Gcc) {
        eachPlatform { 
            cppCompiler.withArguments { args ->
                println "----> C++ args: " + args
            }
        }
    }
}