URL https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk

Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [tags/] [gnu-src/] [newlib-1.18.0/] [newlib-1.18.0-or32-1.0rc1/] [libgloss/] [mn10200/] [sbrk.c] - Diff between revs 207 and 345

Rev 207	Rev 345
`#include <_ansi.h>`	`#include <_ansi.h>`
`#include <sys/types.h>`	`#include <sys/types.h>`
`#include <sys/stat.h>`	`#include <sys/stat.h>`
`#include "trap.h"`	`#include "trap.h"`


`caddr_t`	`caddr_t`
`_sbrk (size_t incr)`	`_sbrk (size_t incr)`
`{`	`{`
`extern char end; /* Defined by the linker */`	`extern char end; /* Defined by the linker */`
`static char *heap_end;`	`static char *heap_end;`
`char *prev_heap_end;`	`char *prev_heap_end;`
`#if 0`	`#if 0`
`char sp = (char )stack_ptr;`	`char sp = (char )stack_ptr;`
`#else`	`#else`
`char sp = (char )&sp;`	`char sp = (char )&sp;`
`#endif`	`#endif`

`if (heap_end == 0)`	`if (heap_end == 0)`
`{`	`{`
`heap_end = &end;`	`heap_end = &end;`
`}`	`}`
`prev_heap_end = heap_end;`	`prev_heap_end = heap_end;`
`heap_end += incr;`	`heap_end += incr;`
`if (heap_end > sp)`	`if (heap_end > sp)`
`{`	`{`
`_write (1, "Heap and stack collision\n", 25);`	`_write (1, "Heap and stack collision\n", 25);`
`abort ();`	`abort ();`
`}`	`}`
`return (caddr_t) prev_heap_end;`	`return (caddr_t) prev_heap_end;`
`}`	`}`