Yep, I commented the base version (uint32_t result=0;).
Because it was offending the GNU assembler with:
- strexh r0, r0, [r1]
- strexb r0, r0, [r1]
Then I replaced it by:
- register uint32_t result asm ("r2");
According to ARM documentation, for STREX, Rd must be different from both Rt
and Rn.
now the compiler output is:
- strexh r2, r0, [r1]
- strexb r2, r0, [r1]
With the above assembler code, the GNU assembler (GAS) doesn't complain
anymore.
I believe this is a great workaround for that problem.
--
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