may be you can try apt-build ? $ cat /etc/apt/apt-build.conf build-dir = /var/cache/apt-build/build repository-dir = /var/cache/apt-build/repository Olevel = -O3 march = -march=pentium2 mcpu = -mcpu=pentium2 options = As you can see, there you can rebuild packages in an automatic way with whatever option you need.
Hope it will help, xavier ----------------original message----------------- De: "brian m. carlson" sand...@crustytoothpaste.net A: debian-powerpc@lists.debian.org Date: Fri, 17 Sep 2010 16:24:41 +0000 ------------------------------------------------- > On Fri, Sep 17, 2010 at 01:48:19PM +0400, Sergei Poselenov wrote: >> - What exact target CPU it is built for? I see here >> http://www.debian.org/ports/powerpc/inst/install the list of >> supported machines, but how can I understand will the Debian binaries >> work on my board with the specific CPU? >> Is it possible, knowing only the specific CPU type (440, 603, 8540, >> 8560, etc) to say will it run Debian PowerPC Distro or not? >> (I understand that there should be a kernel supporting the specific >> board; I'm rather interested in the instructions set used by GCC to >> build the binary images for Debian powerpc distro. In short - what >> "-mcpu=" GCC option is used for build?) > > I believe "-mcpu=generic" is used, except for perhaps certain kernels. > As you pointed out, if there's a kernel for it, Debian powerpc will run > on that type of chip. There may be specially-compiled versions of some > packages that use Altivec, but there should be a generic version for > those as well. > > You can try running "gcc -v" and see what host, build, target, and > with-tune are set to. > >> - We are considering to rebuild the Debian distribution, to >> tune the packages for the specific CPU type (enable hardware FP >> support, etc). >> I now the Debian powerpc distro is built natively. Are there any >> details of the build process available, so we could use it in our >> build system? > > Normally when you build a package with dpkg-buildpackage, it sets > certain environment variables to a default value (for example, CFLAGS=-g > -O2). You may be able to modify that slightly for your needs. Note > that that doesn't guarantee that the package in question won't override > it. > > -- > brian m. carlson / brian with sandals: Houston, Texas, US > +1 832 623 2791 | http://www.crustytoothpaste.net/~bmc | My opinion only > OpenPGP: RSA v4 4096b: 88AC E9B2 9196 305B A994 7552 F1BA 225C 0223 B187 > -- To UNSUBSCRIBE, email to debian-powerpc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/b9a039f90c4a8f15b22c4980b7eaf...@ipnagenda.in2p3.fr
