Hi Stephen, On Wednesday, 23 September 2015, Stephen Warren <swar...@wwwdotorg.org> wrote: > > Simon, > > I have 3 different ARM toolchains installed into /usr/bin via distro > packages. How do I tell buildman which of those to use? > > I had originally thought that ~/.buildman's [toolchain] section contained > CROSS_COMPILE-like values, so I tried: > >> [toolchain] >> root: / >> arm0-not-installed: arm-none-gnueabi- >> arm1: arm-none-eabi- >> arm2: arm-linux-gnueabihf- >> arm3: arm-linux-gnueabi- >> arch64: aarch64-linux-gnu- >> >> [toolchain-alias] >> arm: arm1 >> aarch64: aarch64 > > > (I intended to change the "arm: arm1" line to point at arm1/2/3 based on > which I wanted to use at a particular time). > > However, running "buildman --list-toolchains" and re-reading the docs shows > me that the [toolchain] values are absolute directories that buildman > searches for files named *-gcc: > >> - scanning path 'arm-none-gnueabi-' >> - looking in 'arm-none-gnueabi-/.' >> - looking in 'arm-none-gnueabi-/bin' >> - looking in 'arm-none-gnueabi-/usr/bin' > > > If buildman finds multiple toolchains, there doesn't seem to be a way to tell > it which one to use. Am I missing something? > > I suppose a solution wouuld be to move the compiler binaries into different > separate directories, and only list one of those directories in ~/.buildman. > However, I can't do that for distro-packaged toolchains (well, I suppose I > could manually mv everything all over the place, but that's really fragile > since it'd break any time the package got upgraded or removed and > re-installed). > > I think it makes sense to add new syntax into ~/.buildman to specify "don't > do automagical searching, just use this CROSS_COMPILE value that I say". Does > that sound reasonable? Automagic stuff makes for great defaults, but if it > can't be overridden, it sucks when you actually know what you want.
Yes I think it would be fine to add an option to use CROSS_COMPILE (of course it would fail if you tried to build the board with the wrong arch). The option other option at present is -G which lets you use multiple .buildman files. You could have one of these for each toolchain. Regards, Simon _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
