Changeset c31ae75 in clfs-embedded for BOOK

Timestamp:

Sep 18, 2012, 5:36:23 AM (12 years ago)

Author:

Andrew Bradford <andrew@…>

Branches:

master

Children:

295d48f

Parents:

2e5c4b9

Message:

cross-tools/arm/vars: Add recommended build vars

ARM build variable selection is confusing. There's too many
combinations of choices. Provide some recommendations for ARM9 and
Cortex-A{8,9} that generally hold true. ARM9 and Cortex-A{8,9} are
generally the processors people build for today.

Signed-off-by: Andrew Bradford <andrew@…>

File:

• BOOK/cross-tools/arm/variables.xml (modified) (2 diffs)

BOOK/cross-tools/arm/variables.xml

@@ -21 +21 @@
   tables at the bottom of this page as a reference.</para>
 
-  <para os="a1">First, set the host and target triplets:</para>
+  <para os="a1">Most ARM processors are little endian, it is a safe choice.
+  If your processor is an ARM9, good choices include: triplet of
+  armv5l-unknown-linux-uclibeabi, ARM arch of armv5t, float of softfp, and fpu
+  of either none or softvfp. ARM9 processors do not always have hardware
+  floating point abilities. If your processor is a Cortex-A8 or Cortex-A9, good
+  choices include: triplet of armv7a-unknown-linux-uclibceabi, ARM arch of
+  armv7-a, float of hard, and fpu of vfpv3-d16.</para>
+
+  <para os="a2">First, set the host and target triplets:</para>
 
   <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
@@ -217 +225 @@
         <row>
           <entry>neon-vfpv4</entry>
+          <entry>softvfp</entry>
+          <entry>none</entry>
         </row>
       </tbody>