Stub out some functions that are not provided (and unneeded)

--- a/lib/malloc.c
+++ b/lib/malloc.c
@@ -64,6 +64,15 @@ void *malloc (unsigned int size)
     return caddr;
 }
 
+/* Calloc wrapper for malloc */
+void *memset(void *s, int c, size_t n);
+void *calloc(size_t nmemb, size_t size) {
+	void *caddr;
+	caddr = malloc(nmemb * size);
+	memset(caddr, 0, nmemb * size);
+	return caddr;
+}
+
 /* Do not fall back to the malloc above as posix_memalign is needed by
  * external libraries not yaboot */
 int posix_memalign(void **memptr, size_t alignment, size_t size)
--- a/lib/nonstd.c
+++ b/lib/nonstd.c
@@ -65,3 +65,208 @@
 {
 	return NULL;
 }
+
+int lseek(int fd, int offset, int whence) {
+	// XXX: This whence addition seems wrong ..
+	return prom_lseek((void *)fd, whence + offset);
+}
+
+int lseek64(int fd, int64_t offset, int whence) {
+	return lseek(fd, offset, whence);
+}
+
+int open(const char *pathname, int flags) {
+	return (int) prom_open((char *)pathname);
+}
+
+int open64(const char *pathname, int flags) {
+	return open(pathname, flags);
+}
+
+// Internal glibc fortify calls.
+int __open64_2(const char *path, int flags) {
+	return open64(path, flags);
+}
+
+int read(int fd, void *buf, size_t count) {
+	return prom_read((void *)fd, buf, count);
+}
+
+int write(int fd, const void *buf, size_t count) {
+	return prom_write((void *)fd, (void *)buf, count);
+}
+
+int close(int fd) {
+	prom_close((void *)fd);
+	return 0;
+}
+
+int pread(int fd, void *buf, size_t count, int32_t offset) {
+	int curr = lseek(fd, 0, 0 /*SEEK_CUR*/);
+	lseek(fd, offset, 0 /*SEEK_SET*/);
+	int ret = read(fd, buf, count);
+	lseek(fd, curr, 0 /*SEEK_SET*/);
+	return ret;
+}
+
+int pread64(int fd, void *buf, int64_t count, int64_t offset) {
+	return pread(fd, buf, count, offset);
+}
+
+int pwrite(int fd, const void *buf, size_t count, int32_t offset) {
+	int curr = lseek(fd, 0, 0 /*SEEK_CUR*/);
+	lseek(fd, offset, 0 /*SEEK_SET*/);
+	int ret = write(fd, buf, count);
+	lseek(fd, curr, 0 /*SEEK_SET*/);
+	return ret;
+}
+
+int pwrite64(int fd, const void *buf, int64_t count, int64_t offset) {
+	return pwrite(fd, buf, count, offset);
+}
+
+// No fsync, just assume we've sync'd
+int fsync(int fd) {
+	return 0;
+}
+
+// ext2 libs only use this to turn off caches currently
+int fcntl(int fd, int cmd, ...) {
+	return 0;
+}
+
+void exit(int status) {
+	prom_exit();
+}
+
+int __printf_chk(int flag, const char *format, ...) {
+	va_list ap;
+	va_start (ap, format);
+	prom_vfprintf (prom_stdout, format, ap);
+	va_end (ap);
+
+	return 0;
+}
+
+int __sprintf_chk(char * str, int flag, size_t strlen, const char * format, ...) {
+	va_list ap;
+	va_start(ap, format);
+	// No sprintf? :(
+	va_end(ap);
+	return 0;
+
+}
+
+int __fprintf_chk(FILE *stream, int flag, const char *format, ...) {
+	va_list ap;
+	va_start (ap, format);
+	prom_vfprintf (prom_stdout, format, ap);
+	va_end (ap);
+
+	return 0;
+}
+
+void *memcpy(void *dest, const void *src, size_t n);
+void *__memcpy_chk(void *dest, const void *src, size_t n, size_t destlen) {
+	return memcpy(dest, src, n);
+}
+
+// But these are all dummy functions
+int __xstat64 (int __ver, const char *__filename, void *__stat_buf) {
+	return 0;
+}
+
+int stat64(const char *path, void *stat_buf) {
+	return 0;
+}
+
+int fstat64(int fildes, void *stat_buf) {
+	return 0;
+}
+
+int __fxstat64 (int __ver, int __filedesc, void *__stat_buf) {
+	return 0;
+}
+
+signed int random(void) {
+	return 0;
+}
+
+void srandom(unsigned int seed) {
+	return;
+}
+
+int rand(void) {
+	return 0;
+}
+
+void srand(unsigned int seed) {
+	return;
+}
+
+unsigned int sleep(unsigned int seconds) {
+	return 0;
+}
+
+int gettimeofday(void *tv, void *tz) {
+	return 0;
+}
+
+long sysconf(int name) {
+	return 0;
+}
+
+int getpagesize(void) {
+	return 0;
+}
+
+int gethostname(char *name, size_t len) {
+	return 0;
+}
+
+int getpid(void) {
+	return 0;
+}
+
+int getuid(void) {
+	return 0;
+}
+
+void qsort(void *base, size_t nmemb, size_t size, int(*compar)(const void *, const void *)) {
+	return;
+}
+
+int * __errno_location(void) {
+	return 0;
+}
+
+size_t fwrite(const void *ptr, size_t size, size_t nmemb, void *stream) {
+	return 0;
+}
+
+int ioctl(int d, int request, ...) {
+	return 0;
+}
+
+int fallocate(int fd, int mode, unsigned int offset, unsigned int len) {
+	return 0;
+}
+
+int uname(void *buf) {
+	return 0;
+}
+
+int setrlimit(int resource, void *rlim) {
+	return 0;
+}
+
+unsigned long long int strtoull(const char *nptr, char **endptr, int base) {
+	return 0;
+}
+
+int getrlimit(int resource, void *rlim) {
+	return 0;
+}
+
+int stderr = 0;
+int perror = 0;