From: Thomas Petazzoni Date: Fri, 18 Mar 2016 21:08:04 +0000 (+0100) Subject: arch/arm: Cortex-M3 provides only Thumb-2 X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=41bcc440b1a4a85530b45c2b2a30662e6a823b75;p=buildroot.git arch/arm: Cortex-M3 provides only Thumb-2 The Cortex-M cores only support Thumb-2, not Thumb. In fact, Thumb-2 is a superset of Thumb, and we could have a single option for both in Buildroot, since -mthumb on ARMv4/v5 means original Thumb, while -mthumb on ARMv7 means Thumb 2. However, for clarity, it makes sense to have two separate options. But in this case, Cortex-M3 should not advertise that it supports Thumb, as in fact selecting Thumb would generate Thumb-2 code. Signed-off-by: Thomas Petazzoni Reviewed-by: "Yann E. MORIN" Reviewed-by: Arnout Vandecappelle (Essensium/Mind) Signed-off-by: Thomas Petazzoni --- diff --git a/arch/Config.in.arm b/arch/Config.in.arm index 33f763a306..cd1ec33b18 100644 --- a/arch/Config.in.arm +++ b/arch/Config.in.arm @@ -172,7 +172,6 @@ config BR2_cortex_a17 select BR2_ARCH_HAS_MMU_OPTIONAL config BR2_cortex_m3 bool "cortex-M3" - select BR2_ARM_CPU_HAS_THUMB select BR2_ARM_CPU_HAS_THUMB2 select BR2_ARM_CPU_ARMV7M config BR2_fa526