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author | Mark Hatle <mark.hatle@windriver.com> | 2012-03-30 14:27:58 -0500 |
---|---|---|
committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2012-04-04 17:17:54 +0100 |
commit | d6e7ebb20934a4c4822898b4f4adfcde7f7f4049 (patch) | |
tree | 1f79149b8e634975a631a277f281e1099705d981 /meta/conf/machine/include/ia32/README | |
parent | 62331ff46bd63067dbcdf672460a9aeda18a6e7e (diff) | |
download | poky-d6e7ebb20934a4c4822898b4f4adfcde7f7f4049.tar.gz |
conf/machine/include: Cleanup IA tunings to match README
We perform a basic cleanup of the IA32 architecture and related
tunings in order to match the rules and descriptions within the
new tuning README file.
A number of small issues were corrected in the "c3" tuning to
bring it inline with the README.
(From OE-Core rev: ab77d3401908964f3249c761969600b5ec1bfbd0)
Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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 @@ | |||
1 | 2012/03/30 - Mark Hatle <mark.hatle@windriver.com> | ||
2 | - Initial version | ||
3 | |||
4 | Most of the items for the IA architecture are defined in the single | ||
5 | arch-ia32 file. | ||
6 | |||
7 | Three ABIs are define, m32, mx32 and m64. | ||
8 | |||
9 | The following is the list of ia32 specific variables: | ||
10 | |||
11 | X86ARCH32 - This is the 32-bit architecture GNU canonical arch, TUNE_ARCH. | ||
12 | |||
13 | X86ARCH64 - This is the 64-bit architecture GNU canonical arch, TUNE_ARCH. | ||
14 | |||
15 | The TUNE_PKGARCH is defined as follows: | ||
16 | |||
17 | TUNE_PKGARCH = ${TUNE_PKGARCH_tune-${DEFAULTTUNE}} | ||
18 | |||
19 | The package architecture for 32-bit targets is historical and generally | ||
20 | set to to match the core compatible processor type, i.e. i386. | ||
21 | |||
22 | For 64-bit architectures, the architecture is expected to end in '_64'. | ||
23 | |||
24 | If the x32 ABI is used, then the _64 is further extended with a '_x32'. | ||