[PATCH v4] tune-ppc: Update to pass glibc configure option to get cpu specific support

[PATCH v4] tune-ppc: Update to pass glibc configure option to get cpu specific support

[Kumar Gala]

We need --with-cpu based to glibc to get proper support on 603e & e500mc
to pickup proper math libs to deal with sqrt.  These core do not
implement the fsqrt[s] instructions that the normal PPC math libs
utilize.

This causes use to not set AVAILTUNES specifically to the sub-arch only
as we arent generically compatiable.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---
v4:
Clean version against upstream

 meta/conf/machine/include/tune-ppc603e.inc   |    5 ++++-
 meta/conf/machine/include/tune-ppce500mc.inc |    5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/meta/conf/machine/include/tune-ppc603e.inc b/meta/conf/machine/include/tune-ppc603e.inc
index da8114f..c743dde 100644
--- a/meta/conf/machine/include/tune-ppc603e.inc
+++ b/meta/conf/machine/include/tune-ppc603e.inc
@@ -6,6 +6,9 @@ TUNEVALID[ppc603e] = "Enable ppc603e specific processor optimizations"
 TUNE_CCARGS += "${@bb.utils.contains("TUNE_FEATURES", "ppc603e", "-mcpu=603e", "", d)}"
 TUNE_PKGARCH = "${@bb.utils.contains('TUNE_FEATURES', 'ppc603e', 'ppc603e', '${PPCPKGARCH}', d)}"
 
-AVAILTUNES += "ppc603e"
+AVAILTUNES = "ppc603e"
 TUNE_FEATURES_tune-ppc603e = "m32 fpu-hard ppc603e"
 PACKAGE_EXTRA_ARCHS_tune-ppc603e = "powerpc ppc603e"
+
+# glibc configure options to get 603e specific library (for sqrt)
+GLIBC_EXTRA_OECONF += "${@bb.utils.contains("TUNE_FEATURES", "ppc603e", "-with-cpu=603e", "", d)}"
diff --git a/meta/conf/machine/include/tune-ppce500mc.inc b/meta/conf/machine/include/tune-ppce500mc.inc
index 64e7bdc..33820ef 100644
--- a/meta/conf/machine/include/tune-ppce500mc.inc
+++ b/meta/conf/machine/include/tune-ppce500mc.inc
@@ -6,6 +6,9 @@ TUNEVALID[ppce500mc] = "Enable ppce500mc specific processor optimizations"
 TUNE_CCARGS += "${@bb.utils.contains("TUNE_FEATURES", "ppce500mc", "-mcpu=e500mc", "", d)}"
 TUNE_PKGARCH = "${@bb.utils.contains("TUNE_FEATURES", "ppce500mc", "ppce500mc", "${PPCPKGARCH}", d)}"
 
-AVAILTUNES += "ppce500mc"
+AVAILTUNES = "ppce500mc"
 TUNE_FEATURES_tune-ppce500mc = "m32 fpu-hard ppce500mc"
 PACKAGE_EXTRA_ARCHS_tune-ppce500mc = "powerpc ppce500mc"
+
+# glibc configure options to get e500mc specific library (for sqrt)
+GLIBC_EXTRA_OECONF += "${@bb.utils.contains("TUNE_FEATURES", "ppce500mc", "-with-cpu=e500mc", "", d)}"
-- 
1.7.3.4

Re: [PATCH v4] tune-ppc: Update to pass glibc configure option to get cpu specific support

[Richard Purdie]

On Thu, 2011-08-11 at 23:53 -0500, Kumar Gala wrote:
> We need --with-cpu based to glibc to get proper support on 603e & e500mc
> to pickup proper math libs to deal with sqrt.  These core do not
> implement the fsqrt[s] instructions that the normal PPC math libs
> utilize.
> 
> This causes use to not set AVAILTUNES specifically to the sub-arch only
> as we arent generically compatiable.
> 
> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

Merged to master, thanks.

Richard