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Diffstat (limited to 'microkernel/mach/gnumach/building.mdwn')
| -rw-r--r-- | microkernel/mach/gnumach/building.mdwn | 80 |
1 files changed, 32 insertions, 48 deletions
diff --git a/microkernel/mach/gnumach/building.mdwn b/microkernel/mach/gnumach/building.mdwn index 8284639b..24a73608 100644 --- a/microkernel/mach/gnumach/building.mdwn +++ b/microkernel/mach/gnumach/building.mdwn @@ -8,11 +8,11 @@ enabled) is around 50 MiB. ## Getting the Source Code -You can either use the git repository (see <http://savannah.gnu.org/git/?group=hurd>), +You can either use the git repository (see <http://git.savannah.gnu.org/cgit/hurd/>), $ git clone git.savannah.gnu.org:/srv/git/hurd/gnumach.git -... or Debian sources, if you're using Debian. (See +... or get the Debian sources, if you're using Debian. (See [here](http://packages.debian.net/source/unstable/gnumach).) $ apt-get source gnumach @@ -23,16 +23,15 @@ Please see the Debian [[running/debian/FAQ]] before using `apt-get source`. ### Preparing for the Build -Building GNU Mach requires the *build-essential* and *fakeroot* packages, their -dependencies and additional packages that are specified by the source gnumach -package: +Building GNU Mach requires the *build-essential* and *fakeroot* packages, +and some additional dependencies specified by the gnumach source package: # apt-get install build-essential fakeroot # apt-get build-dep gnumach ### Building and Installing ... Debian `.deb` files -Change into the directory with the downloaded / unpacked GNU Mach sources, e.g. +Change into the directory with the downloaded / unpacked GNU Mach sources, $ cd gnumach-XXXXXXXX @@ -42,7 +41,7 @@ Start the build process with [[GNU_Mach|gnumach]] is now building. To use the new kernel, you must install the resulting `.deb` package which is located one directory above the build -directory and has a similar name as the build directory, e.g. +directory and has a similar name as the build directory: # dpkg -i ../gnumach_XXXXXXXX-X_hurd-i386.deb @@ -52,64 +51,43 @@ You can now reboot your computer and enjoy the new kernel. ### Preparing for the Build -Building GNU Mach requires a C compiler, a _static_ 32 bit standard C library and +Building GNU Mach requires a C compiler, a _static_ 32 bit standard C library, your favourite flavor of awk (gawk) and GNU make. -### Installing the Header Files First - -In order to build GNU Mach, you must build and install MIG, which requires that -you install the GNU Mach header files: - First, create the configuartion files: $ cd gnumach $ autoreconf --install -GNU Mach and its headers should be built in a subdirectory: +GNU Mach (and the associated headers) need be built in a separate build directory: - $ mkdir gnumach-build - $ cd gnumach-build + $ mkdir build + $ cd build -Find the path to your GNU Mach sources (`..`) and configure it: +Run configure: $ ../configure --prefix= -Use the --host flag on 64 bit systems: - - $ ../configure --prefix= --host=i686-unknown-linux-gnu - -Install the header files into e.g. `~/gnu/include/`: - - $ make DESTDIR=~/gnu install-data - -### Building and Installing - -After you've already installed the header files (above), as well as the the -Mach Interface Generator, you may finish building GNU Mach. (See -[[building_MIG|mig/gnu_mig/building]], then come back here.) - -GNU Mach should be built in a subdirectory create it if you have not already. - - $ mkdir gnumach-build - $ cd gnumach-build +If building on a 64 bit host system, +you need a number of additional settings to force a 32 bit build: -If you previously ran ../configure for installing the header files, you may run -into a bug when you configure and run make below. If that is the case, empty -the _build_ directory, and reconfigure. + $ CPP='gcc -m32 -E -x c -undef -ansi' CC='gcc -m32' LD='ld -melf_i386' ../configure --prefix= --host=i686-unknown-linux-gnu - $ cd gnumach-build - $ rm -rf * +### Installing the Header Files First -Find the path to your GNU Mach sources (`..`) and configure it: +In order to build GNU Mach, you will need a working MIG. +Building MIG in turn requires the GNU Mach header files to be already present. +So for bootstrapping MIG, you have to install the Mach headers first, +for example into `~/gnu/include/`: - $ ../configure + $ make DESTDIR=~/gnu install-data -If you are building on a 64 bit system, do the following instead: +Now you can [[build_MIG|mig/gnu_mig/building]]. +Once you are done with that, come back here to finish the Mach build. - $ CPP='gcc -m32 -E -x c -undef -ansi' CC='gcc -m32' LD='ld -melf_i386' - $ ../configure --host=i686-unknown-linux-gnu +### Building and Installing -Build the kernel image: +With MIG present, now build the kernel image: $ make gnumach.gz @@ -117,8 +95,14 @@ Optionally run the (tiny) test suite: $ make check -You can now install and use `gnumach.gz`. +It's a good idea to make a backup of the previously installed kernel, in case +you can't boot using the new one. That way, you can restore it after booting +from a rescue media (or mounting the disk image used by your vm). + + # cp /boot/gnumach.gz /boot/gnumach.gz.bak -[TODO] +GNU Mach can now be moved into place, typically `/boot/gnumach.gz`, so that you +can boot your system with the new kernel. + # cp gnumach.gz /boot |