diff options
| -rw-r--r-- | chip/nrf51/build.mk | 6 | ||||
| -rw-r--r-- | chip/stm32/build.mk | 6 |
2 files changed, 10 insertions, 2 deletions
diff --git a/chip/nrf51/build.mk b/chip/nrf51/build.mk index e5d8ed1b29..e1cf967168 100644 --- a/chip/nrf51/build.mk +++ b/chip/nrf51/build.mk @@ -8,7 +8,11 @@ CORE:=cortex-m0 # Force ARMv6-M ISA used by the Cortex-M0 -CFLAGS_CPU+=-march=armv6-m -mcpu=cortex-m0 +# For historical reasons gcc calls it armv6s-m: ARM used to have ARMv6-M +# without "svc" instruction, but that was short-lived. ARMv6S-M was the option +# with "svc". GCC kept that naming scheme even though the distinction is long +# gone. +CFLAGS_CPU+=-march=armv6s-m -mcpu=cortex-m0 chip-y+=gpio.o system.o uart.o chip-y+=watchdog.o ppi.o diff --git a/chip/stm32/build.mk b/chip/stm32/build.mk index 6e0c190667..9a6a280d81 100644 --- a/chip/stm32/build.mk +++ b/chip/stm32/build.mk @@ -10,7 +10,11 @@ ifeq ($(CHIP_FAMILY),stm32f0) # STM32F0xx sub-family has a Cortex-M0 ARM core CORE:=cortex-m0 # Force ARMv6-M ISA used by the Cortex-M0 -CFLAGS_CPU+=-march=armv6-m -mcpu=cortex-m0 +# For historical reasons gcc calls it armv6s-m: ARM used to have ARMv6-M +# without "svc" instruction, but that was short-lived. ARMv6S-M was the option +# with "svc". GCC kept that naming scheme even though the distinction is long +# gone. +CFLAGS_CPU+=-march=armv6s-m -mcpu=cortex-m0 else ifeq ($(CHIP_FAMILY),$(filter $(CHIP_FAMILY),stm32f3 stm32l4 stm32f4)) # STM32F3xx and STM32L4xx sub-family has a Cortex-M4 ARM core CORE:=cortex-m |