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malloc test: fix out of memory problem for NUCLEO_F070RB #5338

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Nov 2, 2017
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malloc test: fix out of memory problem for NUCLEO_F070RB #5338

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9 changes: 7 additions & 2 deletions TESTS/mbedmicro-rtos-mbed/malloc/main.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -54,17 +54,22 @@ void task_using_malloc(void)

int main()
{
// static stack for threads to reduce heap usage on devices with small RAM
// and eliminate run out of heap memory problem
MBED_ALIGN(8) uint8_t stack[THREAD_STACK_SIZE * NUM_THREADS];
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The alignment isn't necessary with #5405.

If you make this a two dimensional array then the loop below will be clearer.

Declaration:

uint8_t stack[NUM_THREADS][THREAD_STACK_SIZE];

Loop:

thread_list[i] = new Thread(osPriorityNormal, THREAD_STACK_SIZE, stack[i]);


Thread *thread_list[NUM_THREADS];
int test_time = 15;
GREENTEA_SETUP(20, "default_auto");

// Allocate threads for the test
for (int i = 0; i < NUM_THREADS; i++) {
thread_list[i] = new Thread(osPriorityNormal, THREAD_STACK_SIZE);
thread_list[i] = new Thread(osPriorityNormal, THREAD_STACK_SIZE, stack + i * THREAD_STACK_SIZE);
if (NULL == thread_list[i]) {
allocation_failure = true;
} else {
thread_list[i]->start(task_using_malloc);
}
thread_list[i]->start(task_using_malloc);
}

// Give the test time to run
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