Assembler error 'mrs r2,CPSR' not supported for processor

Vinit B. (vinitbidkar) OP 2008-09-29 09:35 #1174361

Environment details:

make:                3.18
binutils:            2.18
arm-elf-gcc:         4.2.2
newlib:              1.16.0
gdb:                 6.8.50-20080308-cvs
Controller           AT91SAM7X256

i am successfully able to compile the code for ARM mode (default mode).
But i am getting assembler error for thumb mode (-mthumb)

The error is:
selected processor does not support 'mrs r2,CPSR'

CFLAGS used in makefile are
## Compile options common for all C compilation units.
CFLAGS =  -mcpu=arm7tdmi -march=armv4t -mthumb
CFLAGS += -Wall -Werror -gdwarf-2 -std=gnu99 -fno-common -O0
CFLAGS += -MD -MP -MT objects/$(*F).o -MF dep/$(@F).d

One strange thing i find is that the instruction (mrs r2,CPSR) for which
the assembler is generating an error is no where used in my code

Am i missing any falg required for THUMB mode?

Reply Quote Edit Move Thread sperren Slow mode Anmeldepflicht aktivieren Anpinnen Delete topic Thread mit anderem zusammenführen Report Thanks

Vinit B. (vinitbidkar) OP 2008-09-29 11:56 #1174362

Vinit Bidkar wrote:
> Environment details:
>
> Am i missing any falg required for THUMB mode?

Problem solved. Solution is present in another thread.

Similar problem can be found in another thread called 'Thumb mode in
WinARM'.
To find this topic, put the string "msr" in the search path. You will
find a topic with this name.

Thanks
Vinit

Reply Quote Edit Delete Report Thanks

Vinit B. (vinitbidkar) OP 2008-09-29 11:59 #1174363

Vinit Bidkar wrote:
> Vinit Bidkar wrote:
>> Environment details:
>>
>> Am i missing any falg required for THUMB mode?
>
> Problem solved. Solution is present in another thread.
>
> Similar problem can be found in another thread called 'Thumb mode in
> WinARM'.
>
> Thanks
> Vinit

Here is the link to that thread
http://en.mikrocontroller.net/topic/74457#new

Reply Quote Edit Delete Report Thanks

Watch this topic

Reply

A question of your own? This thread is over 18 years old. Ask it in a thread of its own – more people read along there, and it gets answered more often and sooner.

Start a new thread

A fix, an addition or feedback on this thread? Then reply here.

Text *

Formatting

[c]C-Code[/c]
[code]code in other languages, ASCII drawings[/code]
[math]formula (LaTeX syntax)[/math]
[[Title]] – link to an article
Link to another post: right-click its post ID (#8078628), copy the address, paste it into the text

More about formatting

Attachments

Post long source code as an attachment, not in the text.

Your name and e-mail address

Already registered? Log in

First name *

Email address *

Not shown to anyone. We send you a link; your post appears once you confirm it there.

Watch this topic

By submitting you create a free account and accept the terms of use.