/* brk on H8/300 by ysato */ /* * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> * * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ #include <errno.h> #include <unistd.h> #include <sys/syscall.h> /* This must be initialized data because commons can't have aliases. */ void *__curbrk attribute_hidden = 0; libc_hidden_proto(brk) int brk (void *addr) { void *newbrk; __asm__ ("mov.l %2,er1\n\t" "mov.l %1,er0\n\t" "trapa #0\n\t" "mov.l er0,%0" : "=r" (newbrk) : "0" (__NR_brk), "g" (addr) : "er0","er1"); __curbrk = newbrk; if (newbrk < addr) { __set_errno (ENOMEM); return -1; } return 0; } libc_hidden_def(brk)