Patchwork [17/50] gcc: Add gcc configure for PowerPC e500v2/SPE embedded floating point ABI

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Submitter Saul Wold
Date July 20, 2011, 8:28 a.m.
Message ID <9aa77dbbfdbafe3fd9200f5227f85510080754d9.1311150183.git.sgw@linux.intel.com>
Download mbox | patch
Permalink /patch/7973/
State New, archived
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Comments

Saul Wold - July 20, 2011, 8:28 a.m.
From: Kumar Gala <galak@kernel.crashing.org>

The e500v2 core utilizes a unique floating point programming model / ABI.
We utilize TARGET_FPU = "ppc-efd" to distinguish this choice (Embedded
scalar single-precision floating-point).  When building the toolchain for
this ABI we need configure gcc with --enable-e500_double.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---
 meta/recipes-devtools/gcc/gcc-4.6.inc    |    2 +-
 meta/recipes-devtools/gcc/gcc-common.inc |    2 ++
 2 files changed, 3 insertions(+), 1 deletions(-)

Patch

diff --git a/meta/recipes-devtools/gcc/gcc-4.6.inc b/meta/recipes-devtools/gcc/gcc-4.6.inc
index 8af5369..a636d32 100644
--- a/meta/recipes-devtools/gcc/gcc-4.6.inc
+++ b/meta/recipes-devtools/gcc/gcc-4.6.inc
@@ -1,6 +1,6 @@ 
 require gcc-common.inc
 
-PR = "r0"
+PR = "r1"
 
 # Third digit in PV should be incremented after a minor release
 # happens from this branch on gcc e.g. currently its 4.6.0
diff --git a/meta/recipes-devtools/gcc/gcc-common.inc b/meta/recipes-devtools/gcc/gcc-common.inc
index 7bf036c..1684e78 100644
--- a/meta/recipes-devtools/gcc/gcc-common.inc
+++ b/meta/recipes-devtools/gcc/gcc-common.inc
@@ -12,6 +12,8 @@  FILESDIR = "${@os.path.dirname(bb.data.getVar('FILE',d,1))}/gcc-${PV}"
 def get_gcc_fpu_setting(bb, d):
     if bb.data.getVar('TARGET_FPU', d, 1) in [ 'soft' ]:
         return "--with-float=soft"
+    if bb.data.getVar('TARGET_FPU', d, 1) in [ 'ppc-efd' ]:
+        return "--enable-e500_double"
     return ""
 
 def get_gcc_mips_plt_setting(bb, d):