From efce79f09ae6daa77cd322df0d532beec3f445f5 Mon Sep 17 00:00:00 2001 From: Bernhard Reutner-Fischer Date: Wed, 26 Mar 2008 13:40:36 +0000 Subject: Paul Brook writes: The attached patch adds support for compiling arm uClibc as pure Thumb code. This is needed because some recent ARM codes do not implement traditional ARM mode. Specifically: * Cortex-M1 - An extremely minimal FPGA based core that only implements Thumb-1 (aka ARMv6-M). * Cortex-M3 - A Thumb-2 only ARMv7-M core. Most of uClibc already builds in Thumb mode, all that is left are a handful of assembly bits. Tested on arm-uclinuxeabi. --- Rules.mak | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Rules.mak') diff --git a/Rules.mak b/Rules.mak index a6c0c3735..2535b0907 100644 --- a/Rules.mak +++ b/Rules.mak @@ -219,6 +219,8 @@ ifeq ($(TARGET_ARCH),arm) CPU_CFLAGS-$(CONFIG_ARM_XSCALE)+=$(call check_gcc,-mtune=xscale,-mtune=strongarm110) CPU_CFLAGS-$(CONFIG_ARM_XSCALE)+=-march=armv5te -Wa,-mcpu=xscale CPU_CFLAGS-$(CONFIG_ARM_IWMMXT)+=-march=iwmmxt -Wa,-mcpu=iwmmxt -mabi=iwmmxt + CPU_CFLAGS-$(CONFIG_ARM_CORTEX_M3)+=-mcpu=cortex-m3 -mthumb + CPU_CFLAGS-$(CONFIG_ARM_CORTEX_M1)+=-mcpu=cortex-m1 -mthumb endif ifeq ($(TARGET_ARCH),mips) -- cgit v1.2.3