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Douglas Royds
f6c639f578
The python function icecc_path() was being invoked inline by set_icecc_env(), meaning that it was being invoked at recipe-parsing time. As a side-effect, icecc_path() was creating the recipe-sysroot directory and symlinking icecc into it. Because this was done at parsing time (rather than configure time), we were generating otherwise-empty WORKDIRs for *all* parsed recipes, and for all virtual classes (-native, -nativesdk). In my build, this generated more than 800 of these otherwise-empty WORKDIRs. I have simplified icecc_path() to return only the intended path to the icecc symlinks in the recipe-sysroot, with no side-effect. We then create the directory and the icecc symlinks at configure time. Because get_cross_kernel_cc() is still invoked at parse-time, it needs a guard-clause for the non-kernel case. We are now finding the host icecc at do_configure time, so icecc needs to be in the HOSTTOOLS. I have made this non-fatal, so that we can still inherit icecc without icecc installed. (From OE-Core rev: d2fcaeb153fdc3f8d7143ea823139f1537055ff1) Signed-off-by: Douglas Royds <douglas.royds@taitradio.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
QEMU Emulation Targets ====================== To simplify development, the build system supports building images to work with the QEMU emulator in system emulation mode. Several architectures are currently supported in 32 and 64 bit variants: * ARM (qemuarm + qemuarm64) * x86 (qemux86 + qemux86-64) * PowerPC (qemuppc only) * MIPS (qemumips + qemumips64) Use of the QEMU images is covered in the Yocto Project Reference Manual. The appropriate MACHINE variable value corresponding to the target is given in brackets.