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I think this lock dates from before we had sstate for do_packagedata. Since WORKDIR is recipe specific and we write into WORKDIR, we no longer need any write locks in the do_packagedata code itself, its handled by the sstate task lock for the final copy in at the end. The final write lock can be simply removed. The only time we need read locking is when actually reading data from the shared directory. We can therefore reduce the window the lock is held significantly as well, hence improving the speed of packagedata tasks running in parallel. (From OE-Core rev: f7106cdf2190d9ec59132a1cb2bb431d653cd9c5) (From OE-Core rev: 1af1e9c23965637ab4a23b3eaf64192694c5448d) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> Signed-off-by: Armin Kuster <akuster808@gmail.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.