Comment 16 for bug 1722849

I have tested the new CMSIS_5 code (commit 3520562) with my test case (a bit more involved than the distilled version posted in the original description in #1) and it seems to work correctly.

Specifically, I tested the critical section defined as follows (see also post #10):

#define CRIT_ENTRY(primask_) do { \
    (primask_) = __get_PRIMASK(); \
    __disable_irq(); \
} while (0)

#define CRIT_EXIT(primask_) __set_PRIMASK((primask_))

I first tested the unmodified CMSIS_5 and verified that the problem exists when compiled with the flags -mcpu=cortex-m0plus -O.

Next, I replaced the old "cmsis_gcc.h" with the new version (commit 3520562) and recompiled my test code. The problem was fixed.

--MMS