diff options
Diffstat (limited to 'libgloss/libnosys/sbrk.c')
-rw-r--r-- | libgloss/libnosys/sbrk.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/libgloss/libnosys/sbrk.c b/libgloss/libnosys/sbrk.c new file mode 100644 index 000000000..8091d7083 --- /dev/null +++ b/libgloss/libnosys/sbrk.c @@ -0,0 +1,27 @@ +/* + * Version of sbrk for no operating system. + */ + +#include "config.h" +#include <_ansi.h> +#include <_syslist.h> +#include <sys/types.h> +#include <errno.h> +#undef errno +extern int errno; + +caddr_t +_DEFUN (_sbrk, (incr), + int incr) +{ + extern char end; /* set by linker */ + static char *heap_end; + char *prev_heap_end; + + if (heap_end == 0) { + heap_end = &end; + } + prev_heap_end = heap_end; + heap_end += incr; + return (caddr_t) prev_heap_end; +} |