#include #include #include #include // takes a cstring and copies it right before a page boundary const char *multipageify(const char *str) { static char buf[0x2000] __attribute__((section("text"))); char *out = (void*)((uintptr_t)buf & ~0xFFF) + 0xFFF; char *cur = out; do { *cur++ = *str; } while (*str++ != '\0'); return out; } #define mount(fd, path) _syscall_fd_mount(fd, path, sizeof(path)-1) int main(void) { int fd; mount(0, "/some/where"); mount(0, "/some"); _syscall_fs_open( // should fail multipageify("/some/where/file"), sizeof("/some/where/file") - 1); fd = _syscall_fs_open( multipageify("/tty"), sizeof("/tty") - 1); // TODO don't dispatch /ttywhatever to the tty driver if (fd < 0) { _syscall_exit("couldn't open tty", sizeof("couldn't open tty") - 1); } _syscall_fd_write(fd, "fd test ", 8); _syscall_fd_close(fd); _syscall_fd_write(fd, "fd test ", 8); // should fail _syscall_exit("bye from init! ", sizeof("bye from init! ") - 1); }