Brian Koropoff wrote:
As far as I know, crossdev only builds a cross compiler which runs on
your build system but generates executables for another
processor/architecture. I've already used crossdev sucessfully to
generate such a compiler for arm. What I want to do now is build a
compiler that *runs* on arm and creates arm executables (that is, both
the host and target platform is arm, not just the target). This should
be as simple as using portage with my crossdev-built cross-compiler and
emerging it, but the build fails. Is there any trick to getting portage
to build a native gcc to be included in the arm root fs?
If I'm reading this right, then what you want to do is impossible. You can't
build a gcc that runs on arm, and builds for arm, on a cross-host. gcc has a
rather strange build phase, wherein it rebuilds itself 2-3 times (if you watch a
gcc build closely, you'll see an "xgcc" and references to stage1 and stage2
bootstraps). As such, if you want to build a native compiler, you have to build
on the native architecture. This is because when the initial bootstrap
completes, and gcc kicks off it's stage1 xgcc run, that xgcc is an arm binary,
and it tries to build a stage2 xgcc arm binary. If performed on a fast x86 box,
this will fail.
--Kumba
--
Gentoo/MIPS Team Lead
Gentoo Foundation Board of Trustees
"Such is oft the course of deeds that move the wheels of the world: small hands
do them because they must, while the eyes of the great are elsewhere." --Elrond
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