#include #include #include #include #include #include #include #include extern int errno; extern int __io_putchar(int ch) __attribute__((weak)); extern int __io_getchar(void) __attribute__((weak)); register char * stack_ptr asm("sp"); char *__env[1] = { 0 }; char **environ = __env; void initialise_monitor_handles() { } int _getpid(void) { return 1; } int _kill(int pid, int sig) { errno = EINVAL; return -1; } void _exit (int status) { _kill(status, -1); while (1) {} /* Make sure we hang here */ } __attribute__((weak)) int _read(int file, char *ptr, int len) { int DataIdx; for (DataIdx = 0; DataIdx < len; DataIdx++) { *ptr++ = __io_getchar(); } return len; } __attribute__((weak)) int _write(int file, char *ptr, int len) { int DataIdx; for (DataIdx = 0; DataIdx < len; DataIdx++) { __io_putchar(*ptr++); } return len; } int _close(int file) { return -1; } int _fstat(int file, struct stat *st) { st->st_mode = S_IFCHR; return 0; } int _isatty(int file) { return 1; } int _lseek(int file, int ptr, int dir) { return 0; } int _open(char *path, int flags, ...) { /* Pretend like we always fail */ return -1; } int _wait(int *status) { errno = ECHILD; return -1; } int _unlink(char *name) { errno = ENOENT; return -1; } int _times(struct tms *buf) { return -1; } int _stat(char *file, struct stat *st) { st->st_mode = S_IFCHR; return 0; } int _link(char *old, char *new) { errno = EMLINK; return -1; } int _fork(void) { errno = EAGAIN; return -1; } int _execve(char *name, char **argv, char **env) { errno = ENOMEM; return -1; }