powerpc e500: set -mfloat-gprs=double

Use of FPRs instead of GPRs is incompatible with e500/SPE, so let's be
explicit about the use of GPRs to avoid potential errors. For example, with
the Sourcery G++ toolchain, one can hit: conftest.c:1:0: error: E500 and FPRs
not supported.

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/conf/machine/include/tune-ppce500.inc b/meta/conf/machine/include/tune-ppce500.inc
index 1326720834295dde2122e784f6b5919c73e7e642..feb1967b4f83b4dd4da6fd636fbc50242db1815b 100644 (file)
--- a/meta/conf/machine/include/tune-ppce500.inc
+++ b/meta/conf/machine/include/tune-ppce500.inc
@@ -7,7 +7,7 @@ TUNE_CCARGS += "${@bb.utils.contains("TUNE_FEATURES", "ppce500", "-mcpu=8540", "
 TUNE_PKGARCH_tune-ppce500 = "ppce500"
 
 TUNEVALID[spe] = "Enable SPE ABI extensions"
-TUNE_CCARGS += "${@bb.utils.contains("TUNE_FEATURES", "spe", "-mabi=spe -mspe", "", d)}"
+TUNE_CCARGS += "${@bb.utils.contains("TUNE_FEATURES", "spe", "-mabi=spe -mspe -mfloat-gprs=double", "", d)}"
 
 TARGET_FPU = "ppc-efs"
 

diff --git a/meta/conf/machine/include/tune-ppce500v2.inc b/meta/conf/machine/include/tune-ppce500v2.inc
index e7b51c6d0355061198ea96544e400a6ef40a80a4..f0158d0440fc89542b972ab70f01416b3a0d7102 100644 (file)
--- a/meta/conf/machine/include/tune-ppce500v2.inc
+++ b/meta/conf/machine/include/tune-ppce500v2.inc
@@ -7,7 +7,7 @@ TUNE_CCARGS += "${@bb.utils.contains("TUNE_FEATURES", "ppce500v2", "-mcpu=8548",
 TUNE_PKGARCH_tune-ppce500v2 = "ppce500v2"
 
 TUNEVALID[spe] = "Enable SPE ABI extensions"
-TUNE_CCARGS += "${@bb.utils.contains("TUNE_FEATURES", "spe", "-mabi=spe -mspe", "", d)}"
+TUNE_CCARGS += '${@bb.utils.contains("TUNE_FEATURES", "spe", "-mabi=spe -mspe -mfloat-gprs=double", "", d)}'
 
 TARGET_FPU = "ppc-efd"