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-rw-r--r--makefiles/toolchain_gnu-arm-eabi.mk4
1 files changed, 4 insertions, 0 deletions
diff --git a/makefiles/toolchain_gnu-arm-eabi.mk b/makefiles/toolchain_gnu-arm-eabi.mk
index d7e48f03b..2359a66b0 100644
--- a/makefiles/toolchain_gnu-arm-eabi.mk
+++ b/makefiles/toolchain_gnu-arm-eabi.mk
@@ -80,6 +80,8 @@ ARCHCPUFLAGS_CORTEXM3 = -mcpu=cortex-m3 \
-march=armv7-m \
-mfloat-abi=soft
+ifeq ($(CONFIG_ARMV7M_STACKCHECK),y)
+
ARCHINSTRUMENTATIONDEFINES_CORTEXM4F = -finstrument-functions \
-ffixed-r10
@@ -88,6 +90,8 @@ ARCHINSTRUMENTATIONDEFINES_CORTEXM4 = -finstrument-functions \
ARCHINSTRUMENTATIONDEFINES_CORTEXM3 =
+endif
+
# Pick the right set of flags for the architecture.
#
ARCHCPUFLAGS = $(ARCHCPUFLAGS_$(CONFIG_ARCH))