[Buildroot] [PATCH] arch/arm: add support for thumb(1) mode

Peter Korsgaard jacmet at uclibc.org
Thu Jul 18 08:10:38 UTC 2013

>>>>> "Gustavo" == Gustavo Zacarias <gustavo at zacarias.com.ar> writes:

 Gustavo> On 07/17/2013 04:58 PM, Thomas Petazzoni wrote:
 >> Ok, so if I select "Thumb" for ARMv5T, but use a normal ARMv5
 >> external toolchain (compiled ARM, not Thumb), it should work. Am I
 >> correct?

 Gustavo> Yes, because at the moment it's a NOP, we don't do anything
 Gustavo> regarding thumb and external toolchains :) However if we did
 Gustavo> it must work, it's part of the spec and the gcc default as
 Gustavo> long as we are talking about a thumb-supporting cpu of course.

FYI, I just did a test build (arm926/thumb1/internal uclibc), and the
build dies in NPTL when it runs out of registers. Without threads it
builds and seems to work.

Bye, Peter Korsgaard

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