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https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
Subversion Repositories openrisc_2011-10-31
[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [libgloss/] [mcore/] [sbrk.c] - Rev 148
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/* sbrk.c -- allocate memory dynamically. * * Copyright (c) 1995,1996,1999 Cygnus Support * * The authors hereby grant permission to use, copy, modify, distribute, * and license this software and its documentation for any purpose, provided * that existing copyright notices are retained in all copies and that this * notice is included verbatim in any distributions. No written agreement, * license, or royalty fee is required for any of the authorized uses. * Modifications to this software may be copyrighted by their authors * and need not follow the licensing terms described here, provided that * the new terms are clearly indicated on the first page of each file where * they apply. */ #include <sys/types.h> #include <sys/stat.h> #include "glue.h" caddr_t _sbrk (size_t incr) { static char *heap_end; char *prev_heap_end; char *sp = (char *)&sp; if (heap_end == 0) { heap_end = _end; } prev_heap_end = heap_end; if (heap_end > sp) { _write (1, "Heap and stack collision\n", 25); #if 0 /* Calling abort brings in the signal handling code. */ abort (); #else exit (1); #endif } heap_end += incr; return (caddr_t) prev_heap_end; }
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