diff options
Diffstat (limited to 'libgloss/mips/syscalls.c')
-rw-r--r-- | libgloss/mips/syscalls.c | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/libgloss/mips/syscalls.c b/libgloss/mips/syscalls.c deleted file mode 100644 index 3ab543674..000000000 --- a/libgloss/mips/syscalls.c +++ /dev/null @@ -1,45 +0,0 @@ -#include <_ansi.h> -#include <sys/types.h> -#include <sys/stat.h> - -#include "regs.S" - -extern char _end[]; - -/* FIXME: This is not ideal, since we do a get_mem_info() call for - every sbrk() call. */ -char * -sbrk (nbytes) - int nbytes; -{ - static char *heap_ptr = _end; - static char *heap_start = _end; - char *base; - struct s_mem { - unsigned int size; - unsigned int icsize; - unsigned int dcsize; - } mem; - unsigned int avail = 0; - - /* The sizeof (s_mem.size) must be 4 bytes. The compiler should be - able to eliminate this check */ - if (sizeof (unsigned int) != 4) - return (char *)-1; - - get_mem_info(&mem); - /* NOTE: The value returned from the get_mem_info call is the amount - of memory, and not the address of the (last byte + 1) */ - - if (((size_t)heap_ptr >= heap_start) && ((size_t)heap_ptr < (heap_start + mem.size))) { - avail = (heap_start + mem.size) - (size_t)heap_ptr; - base = heap_ptr; - } /* else will fail since "nbytes" will be greater than zeroed "avail" value */ - - if ((nbytes > avail) || (heap_ptr + nbytes < _end)) - base = (char *)-1; - else - heap_ptr += nbytes; - - return base; -} |