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Diffstat (limited to 'meta/conf/machine/include/ia32/README')
| -rw-r--r-- | meta/conf/machine/include/ia32/README | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/meta/conf/machine/include/ia32/README b/meta/conf/machine/include/ia32/README new file mode 100644 index 0000000000..8f80a5ba94 --- /dev/null +++ b/meta/conf/machine/include/ia32/README @@ -0,0 +1,24 @@ +2012/03/30 - Mark Hatle <mark.hatle@windriver.com> + - Initial version + +Most of the items for the IA architecture are defined in the single +arch-ia32 file. + +Three ABIs are define, m32, mx32 and m64. + +The following is the list of ia32 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'. |