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Effectively revert "qemux86-64: build for x86-64-v3 (2013 Haswell and later) rather than Core 2 from 2006" (commit 6f2af1e5d1537b4d31e14946292bf58f0fd76fc9) Much as I'd love us to use the latest tuning, we do have some autobuilder hardware which isn't ready for this yet which breaks KVM and some qemu user mode usage as there appear to be TCG bugs too. I suspect we're not the only ones with such hardware. Drop the tune back to core2-64, anyone can easily customise it themselves if they need it. We can revisit this in a year or two as we should be ready then. It has beena good test of the rest of the support which all seems ready. I'd have preferred to use corei7-64 but that causes runqemu.RunqemuTests.test_boot_machine_iso to hang. Leave the newer tune file inclusion so people can change tunes more easily. (From OE-Core rev: 369b1dfa28b1791d45f068acc765190defecd460) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2012/03/30 - Mark Hatle mark.hatle@windriver.com
- Initial version
Most of the items for the X86 architectures are defined in the single arch-x86 file.
Three ABIs are define, m32, mx32 and m64.
The following is the list of X86 specific variables:
X86ARCH32 - This is the 32-bit architecture GNU canonical arch, TUNE_ARCH.
X86ARCH64 - This is the 64-bit architecture GNU canonical arch, TUNE_ARCH.
The TUNE_PKGARCH is defined as follows:
TUNE_PKGARCH = ${TUNE_PKGARCH:tune-${DEFAULTTUNE}}
The package architecture for 32-bit targets is historical and generally set to to match the core compatible processor type, i.e. i386.
For 64-bit architectures, the architecture is expected to end in '_64'.
If the x32 ABI is used, then the _64 is further extended with a '_x32'.