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* fixed a bug in sbrk() by changing the counter variable from local to global

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This commit is contained in:
Oleg Hahm 2013-05-16 17:10:14 +02:00
parent 336667a43a
commit cdad71d6e3
1 changed files with 3 additions and 2 deletions
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5
cpu/arm_common/syscalls.c
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@ -80,7 +80,8 @@ static caddr_t heap[NUM_HEAPS] = {(caddr_t)&__heap1_start,(caddr_t)&__heap3_star
static const caddr_t heap_max[NUM_HEAPS] = {(caddr_t)&__heap1_max,(caddr_t)&__heap3_max,(caddr_t)&__heap2_max};
// start position in heap
static const caddr_t heap_start[NUM_HEAPS] = {(caddr_t)&__heap1_start,(caddr_t)&__heap3_start,(caddr_t)&__heap2_start};
// current heap in use
volatile static uint8_t iUsedHeap = 0;
/** @} */
@ -120,7 +121,7 @@ caddr_t _sbrk_r(struct _reent *r, size_t incr)
uint32_t cpsr = disableIRQ();
/* check all heaps for a chunk of the requested size */
for (volatile uint8_t iUsedHeap = 0; iUsedHeap < NUM_HEAPS; iUsedHeap++ ) {
for (; iUsedHeap < NUM_HEAPS; iUsedHeap++ ) {
caddr_t new_heap = heap[iUsedHeap] + incr;
#ifdef MODULE_TRACELOG