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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1702 | - | 1 | // -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: t -*- |
| 2 | |||
| 3 | // |
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| 4 | // C++ runtime support not provided by Arduino |
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| 5 | // |
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| 6 | // Note: use new/delete with caution. The heap is small and |
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| 7 | // easily fragmented. |
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| 8 | // |
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| 9 | |||
| 10 | #include <stdlib.h> |
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| 11 | #include "c++.h" |
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| 12 | #if defined(ARDUINO) && ARDUINO >= 100 |
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| 13 | #include "Arduino.h" |
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| 14 | #else |
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| 15 | #include "WProgram.h" |
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| 16 | #endif |
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| 17 | |||
| 18 | void * operator new(size_t size) |
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| 19 | { |
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| 20 | #ifdef AP_DISPLAYMEM |
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| 21 | displayMemory(); |
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| 22 | #endif |
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| 23 | return(calloc(size, 1)); |
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| 24 | } |
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| 25 | |||
| 26 | void operator delete(void *p) |
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| 27 | { |
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| 28 | if (p) free(p); |
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| 29 | } |
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| 30 | |||
| 31 | extern "C" void __cxa_pure_virtual() |
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| 32 | { |
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| 33 | while (1) |
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| 34 | { |
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| 35 | Serial.println("Error: pure virtual call"); |
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| 36 | delay(1000); |
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| 37 | } |
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| 38 | } |
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| 39 | |||
| 40 | void * operator new[](size_t size) |
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| 41 | { |
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| 42 | #ifdef AP_DISPLAYMEM |
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| 43 | displayMemory(); |
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| 44 | #endif |
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| 45 | return(calloc(size, 1)); |
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| 46 | } |
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| 47 | |||
| 48 | void operator delete[](void * ptr) |
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| 49 | { |
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| 50 | if (ptr) free(ptr); |
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| 51 | } |
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| 52 | |||
| 53 | __extension__ typedef int __guard __attribute__((mode (__DI__))); |
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| 54 | |||
| 55 | int __cxa_guard_acquire(__guard *g) |
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| 56 | { |
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| 57 | return !*(char *)(g); |
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| 58 | }; |
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| 59 | |||
| 60 | void __cxa_guard_release (__guard *g) |
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| 61 | { |
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| 62 | *(char *)g = 1; |
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| 63 | }; |
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| 64 | |||
| 65 | void __cxa_guard_abort (__guard *) {}; |
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| 66 | |||
| 67 | // free memory |
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| 68 | extern unsigned int __bss_end; |
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| 69 | extern void *__brkval; |
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| 70 | |||
| 71 | void displayMemory() |
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| 72 | { |
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| 73 | static int minMemFree=0; |
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| 74 | if (minMemFree<=0 || freeMemory()<minMemFree) { |
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| 75 | minMemFree = freeMemory(); |
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| 76 | Serial.print("bytes free: "); |
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| 77 | Serial.println(minMemFree); |
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| 78 | } |
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| 79 | } |
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| 80 | |||
| 81 | int freeMemory() |
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| 82 | { |
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| 83 | int free_memory; |
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| 84 | |||
| 85 | if ((intptr_t)__brkval == 0) |
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| 86 | free_memory = ((intptr_t)&free_memory) - ((intptr_t)&__bss_end); |
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| 87 | else |
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| 88 | free_memory = ((intptr_t)&free_memory) - ((intptr_t)__brkval); |
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| 89 | |||
| 90 | return free_memory; |
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| 91 | } |