On Thu, 2012-02-23 at 13:00 +0100, Hector Oron wrote: > Hello, > > 2012/2/23 Jonathan Nieder <[email protected]>: > > > I don't know the emdebian cross tools well, but I believe they are > > built from the standard Debian binutils and gcc packages by setting > > appropriate variables at build time to request that they target > > another architecture. See > > https://wiki.debian.org/BuildingCrossCompilers for details.
They obviously target other architectures, i.e. CPUs, not OSes like GNU/kFreeBSD or GNU/Hurd. > Most underlying mechanisms assume Linux kernel, AFAICT, none has > attempted to change those to use another kernel, but that might be > possible changing Linux kernel headers by some other kernel headers. I've looked at this web page (and several other guides and web pages). The Debian web page does not help much in creating a cross compiler for another kernel than GNU/Linux. These steps I already have done and written down for the GNU/Hurd OS. Anybody interested? My questions and aims are: Assuming the cross and target build environment is available, as above. BUILD=x86_64-linux-gnu TARGET=i486-gnu TOOLS=/somewhere/cross_tools SYSROOT=/somewhere/target_tools Current method: =============== apt-get source package mkdir build-package cd build-package ../package/configure --build=$BUILD --host=$HOST (+ other options) make all make install No .deb package is created, all headers, libraries and executables are directly installed in $SYSROOT. With cross-build dpkg-support: ============================== Set up where the cross tools and target headers, libraries and executables are located. cd package DEB_BUILD_GNU_TYPE=$BUILD DEB_HOST_GNU_TYPE=$TARGET dpkg-buildpackage -b That will create .debs to be installed on the target box or in $SYSROOT. The gnat issue is related but separate from the above description. For gnat we have a chicken-and-egg situation (as often is the case with compilers). Thanks! -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/[email protected]
