Use thumb instructions for Cortex-M3 to avoid this gcc error:
'error: target CPU does not support ARM mode'.
Extracted from "Cortex-M3 Technical Reference Manual":
"The processor implements the ARM v7-M architecture. This includes the entire
16-bit Thumb instruction set and the base Thumb-2 32-bit instruction set
architecture. The processor cannot execute ARM instructions."
Signed-off-by: Andrei Gherzan <and...@gherzan.ro>
---
meta/conf/machine/include/tune-cortexm3.inc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/meta/conf/machine/include/tune-cortexm3.inc
b/meta/conf/machine/include/tune-cortexm3.inc
index cbc4c0d..780baf4 100644
--- a/meta/conf/machine/include/tune-cortexm3.inc
+++ b/meta/conf/machine/include/tune-cortexm3.inc
@@ -10,5 +10,5 @@ TUNE_CCARGS .= "${@bb.utils.contains("TUNE_FEATURES",
"armv7m", " -march=armv7-m
AVAILTUNES += "cortexm3"
ARMPKGARCH_tune-cortexm3 = "armv7m"
-TUNE_FEATURES_tune-cortexm3 = "armv7m vfp cortexm3"
+TUNE_FEATURES_tune-cortexm3 = "armv7m vfp cortexm3 thumb"
PACKAGE_EXTRA_ARCHS_tune-cortexm3 = "${PACKAGE_EXTRA_ARCHS_tune-armv7at}
armv7m-vfp"
--
1.8.1.4
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