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Re: ARM Thumb mode
- From: Jonathan Larmour <jifl at eCosCentric dot com>
- To: sensitron medical <sensitronnet at yahoo dot com>
- Cc: ecos <ecos-discuss at sources dot redhat dot com>
- Date: Fri, 25 Apr 2003 19:54:04 +0100
- Subject: Re: [ECOS] ARM Thumb mode
- References: <20030423180509.36639.qmail@web14811.mail.yahoo.com>
sensitron medical wrote:
I am trying to build an ARM app with thumb
instructions. I selected "Enable Thumb instruction
set" under eCos HAL:ARM architecture on the GUI, but I
don't see that the -mthumb flag is being passed to the compiler.
Not all targets have been tested with thumb, so they haven't got the
correct CDL to enable operation with thumb e.g. by adding -mthumb.
But we've also had some difficulty getting thumb tools to work at all, so
haven't been able to do much verification anyway. Admittedly this may be
fixed in later GCC code. GCC 3.2.3 is now out for example, but we're still
using 3.2.1. If you want to try GCC 3.2.3 let us know how it goes! It
could be a good motivation for us to move on.
Jifl
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eCosCentric http://www.eCosCentric.com/ The eCos and RedBoot experts
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