Difference between revisions of "How to use SystemView Heap Monitoring - Custom Heap"
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return p; |
return p; |
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} |
} |
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+ | </pre> |
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+ | Since there is no dedicated realloc SystemView API function, a combination of <code>SEGGER_SYSVIEW_HeapFree</code> and <code>SEGGER_SYSVIEW_HeapAlloc</code> is needed: |
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+ | <pre> |
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static void* _MyRealloc(void* p, size_t size) { |
static void* _MyRealloc(void* p, size_t size) { |
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void* rp = realloc(p, size); |
void* rp = realloc(p, size); |
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return rp; |
return rp; |
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} |
} |
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+ | </pre> |
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+ | <pre> |
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− | |||
static void _MyFree(void* p) { |
static void _MyFree(void* p) { |
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free(p); |
free(p); |
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SEGGER_SYSVIEW_HeapFree(__heap_start__, p); |
SEGGER_SYSVIEW_HeapFree(__heap_start__, p); |
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} |
} |
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− | |||
</pre> |
</pre> |
Revision as of 17:31, 18 July 2023
This article assumes a working SystemView setup. To gain some more info on this subject, please consult either the main article (How to use SystemView Heap_Monitoring) or the SystemView documentation.
static void* _MyMalloc(size_t size) { void* p = malloc(size); // SystemView needs the real internal heap block size, not the amount requested by the user SEGGER_SYSVIEW_HeapAlloc(__heap_start__, p, _GetAllocBlockSize(size)); return p; }
Since there is no dedicated realloc SystemView API function, a combination of SEGGER_SYSVIEW_HeapFree
and SEGGER_SYSVIEW_HeapAlloc
is needed:
static void* _MyRealloc(void* p, size_t size) { void* rp = realloc(p, size); SEGGER_SYSVIEW_HeapFree(__heap_start__, p); // SystemView needs the real internal heap block size, not the amount requested by the user SEGGER_SYSVIEW_HeapAlloc(__heap_start__, rp, _GetAllocBlockSize(size)); return rp; }
static void _MyFree(void* p) { free(p); SEGGER_SYSVIEW_HeapFree(__heap_start__, p); }