To update your local copy of the repository, use git pull anywhere in the radare2 source code tree:
$ git pull
If you have local modifications of the source, you can revert them (and lose them!) with:
$ git reset --hard HEAD
Or send us a patch:
$ git diff > radare-foo.patch
The most common way to get r2 updated and installed system wide is by using:
$ sys/install.sh
There is also a work-in-progress support for Meson.
Using clang and ld.gold makes the build faster:
>CC=clang LDFLAGS=-fuse-ld=gold meson . release --buildtype=release --prefix ~/.local/stow/radare2/release
>ninja -C release
># ninja -C release install
Take a look at the scripts in sys/, they are used to automate stuff related to syncing, building and installing r2 and its bindings.
The most important one is sys/install.sh. It will pull, clean, build and symstall r2 system wide.
Symstalling is the process of installing all the programs, libraries, documentation and data files using symlinks instead of copying the files.
By default it will be installed in /usr/local, but you can specify a different prefix using the argument --prefix.
This is useful for developers, because it permits them to just run 'make' and try changes without having to run make install again.
Cleaning up the source tree is important to avoid problems like linking to old objects files or not updating objects after an ABI change.
The following commands may help you to get your git clone up to date:
$ git clean -xdf
$ git reset --hard @~10
$ git pull
If you want to remove previous installations from your system, you must run the following commands:
$ ./configure --prefix=/usr/local
$ make purge
Currently the core of radare2 can be compiled on many systems and architectures, but the main development is done on GNU/Linux with GCC, and on MacOS X with clang. Radare is also known to compile on many different systems and architectures (including TCC and SunStudio).
People often want to use radare as a debugger for reverse engineering. Currently, the debugger layer can be used on Windows, GNU/Linux (Intel x86 and x86_64, MIPS, and ARM), OS X, FreeBSD, NetBSD, and OpenBSD (Intel x86 and x86_64)..
Compared to core, the debugger feature is more restrictive portability-wise. If the debugger has not been ported to your favorite platform, you can disable the debugger layer with the --without-debugger configure script option when compiling radare2.
