On 11 Feb 2015, at 12:48, Björn Schreiber wrote:
Some new information: the manufacturer of the SOM did a analysis of
the compiled program. We were told that the program makes use of the
SWP instruction which is deprecated since ARMv6 and was deactivated
in the kernel we used. They build a new kernel with the deprecated
instruction activated which is running the test program without any
error.
Now we can use this new kernel for further tests.
Is there any compiler switch to control the generated code and
therefore the chance to avoid this deprecated instruction?
The swp instruction is in the RTL. It will not be included if you
compile the RTL for an architecture that does not support this
instruction. The Cortex-A5 is an ARMv7 class cpu, so adding -Cparmv7
to your cross-options when building the RTL should work.
Jonas
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