diff options
Diffstat (limited to 'libgloss/mn10300/sbrk.c')
-rw-r--r-- | libgloss/mn10300/sbrk.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/libgloss/mn10300/sbrk.c b/libgloss/mn10300/sbrk.c new file mode 100644 index 000000000..376fd3285 --- /dev/null +++ b/libgloss/mn10300/sbrk.c @@ -0,0 +1,31 @@ +#include <_ansi.h> +#include <sys/types.h> +#include <sys/stat.h> +#include "trap.h" + + +caddr_t +_sbrk (size_t incr) +{ + extern char end; /* Defined by the linker */ + static char *heap_end; + char *prev_heap_end; +#if 0 + char *sp = (char *)stack_ptr; +#else + char *sp = (char *)&sp; +#endif + + if (heap_end == 0) + { + heap_end = &end; + } + prev_heap_end = heap_end; + heap_end += incr; + if (heap_end > sp) + { + _write (1, "Heap and stack collision\n", 25); + abort (); + } + return (caddr_t) prev_heap_end; +} |