source:
trunk/libs/newlib/src/libgloss/m68k/fido-sbrk.c
@
668
| Last change on this file since 668 was 444, checked in by , 6 years ago | |
|---|---|
| File size: 275 bytes | |
| Line | |
|---|---|
| 1 | #include <stddef.h> |
| 2 | |
| 3 | extern char _end[]; |
| 4 | static char *curbrk = _end; |
| 5 | extern char _heapend; /* End of heap */ |
| 6 | |
| 7 | void * |
| 8 | sbrk (ptrdiff_t incr) |
| 9 | { |
| 10 | char *oldbrk = curbrk; |
| 11 | if (curbrk + incr > &_heapend) |
| 12 | return (void *) -1; |
| 13 | curbrk += incr; |
| 14 | return oldbrk; |
| 15 | } |
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