summaryrefslogtreecommitdiffstats
path: root/meta/conf/machine/include/x86/README
diff options
context:
space:
mode:
Diffstat (limited to 'meta/conf/machine/include/x86/README')
-rw-r--r--meta/conf/machine/include/x86/README24
1 files changed, 24 insertions, 0 deletions
diff --git a/meta/conf/machine/include/x86/README b/meta/conf/machine/include/x86/README
new file mode 100644
index 0000000..2b6c46c
--- /dev/null
+++ b/meta/conf/machine/include/x86/README
@@ -0,0 +1,24 @@
12012/03/30 - Mark Hatle <mark.hatle@windriver.com>
2 - Initial version
3
4Most of the items for the X86 architectures are defined in the single
5arch-x86 file.
6
7Three ABIs are define, m32, mx32 and m64.
8
9The following is the list of X86 specific variables:
10
11X86ARCH32 - This is the 32-bit architecture GNU canonical arch, TUNE_ARCH.
12
13X86ARCH64 - This is the 64-bit architecture GNU canonical arch, TUNE_ARCH.
14
15The TUNE_PKGARCH is defined as follows:
16
17TUNE_PKGARCH = ${TUNE_PKGARCH_tune-${DEFAULTTUNE}}
18
19The package architecture for 32-bit targets is historical and generally
20set to to match the core compatible processor type, i.e. i386.
21
22For 64-bit architectures, the architecture is expected to end in '_64'.
23
24If the x32 ABI is used, then the _64 is further extended with a '_x32'.