Various scripts related to GCC development

Prerequisites and configuration

The scripts require sh python package (interface for subprocess module). Installation on Debian-like distributions:

$ sudo apt-get install -y python-pip
$ sudo pip install sh

Various options (such as path to your GCC working tree) are configured via config.py script. Use config.py.example as a boilerplate to create your own configuration, i.e.

$ cp config.py.example config.py
$ vim config.py

Build

These scripts are wrappers for GCC build system.

build.py

build.py is a shortcut for running GCC build from scratch. Essentially it runs configure and make with various commonly used options.

Run

$ ./build.py -h

to get full list of options.

Usage examples

Build the compiler proper for C and C++ languages (native):

$ ./build.py

Same for aarch64-linux target:

$ ./build.py --target aarch64-linux

Build debuggable version of the compiler (-Og -ggdb3):

$ ./build.py -g

Bootstrap and install GCC to /opt (edit config.py to change default path):

$ ./build.py --bootstrap --install

Run profiled bootstrap with --enable-checking="release":

$ ./build.py --release --fdo

Build and install C, C++ and Fortran compilers and libgccjit:

$ ./build.py --languages=c,c++,lto,fortran,jit --bootstrap --install

tarball_build.py

tarball_build.py - download GCC tarball (either released version or development snapshot), extract tarball, build and install. Directory for tarballs and installation path should be specified in config.py.

Run

$ ./tarball_build.py -h

to get full list of options.

Usage examples

Download, build and install GCC 5.3.0:

$ ./tarball_build.py --version 5.3.0

Download, build and install latest snapshot of GCC 5 branch with --enable-checking="yes":

$ ./tarball_build.py --branch 5 --checking

List GCC versions available on FTP server:

$ ./tarball_build.py -l

Testing

Scripts for bug triage (and to certain extent, debugging) are located in testing subdirectory.