Subversion Repositories or1k

#include <unistd.h>

#include <sys/syscall.h>

#include <errno.h>

#include "sysdep.h"

extern void * ___brk_addr;

extern int __init_brk (void);

int brk(void * end_data_seg)

{

        if (__init_brk () == 0) {

                /*

                 * Notice that we don't need to save/restore the GOT

                 * register since that is not call clobbered by the syscall.

                 */

                asm ("move.d %1,$r10\n\t"

                     "movu.w " STR(__NR_brk) ",$r9\n\t"

                     "break 13\n\t"

                     "move.d $r10, %0"

                     : "=r" (___brk_addr)

                     : "g" (end_data_seg)

                     : "r9", "r10");

                if (___brk_addr == end_data_seg)

                        return 0;

                __set_errno(ENOMEM);

        }

        return -1;

}