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Remove clrex instruction from Cortex-M ports again as it is implicit in interrupt entry.

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Richard Barry 2016-06-28 10:39:25 +00:00
parent c296e2cff8
commit bdbf347c22
14 changed files with 0 additions and 25 deletions
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FreeRTOS/Source/portable/GCC/ARM_CM4_MPU/port.c
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@ -477,7 +477,6 @@ void xPortPendSVHandler( void )
" mrs r1, control \n"
" stmdb r0!, {r1, r4-r11, r14} \n" /* Save the remaining registers. */
" str r0, [r2] \n" /* Save the new top of stack into the first member of the TCB. */
" clrex \n" /* Ensure thread safety of atomic operations. */
" \n"
" stmdb sp!, {r3} \n"
" mov r0, %0 \n"