Function pmm_alloc_page_is_writable

tests/integration/platform_stdlib.rs:1094–1127

()

external kshutdown: (code: i64)

kmain: () {
    klog_warn("memory low".ptr)
    klog_error("disk failed".ptr)
    kshutdown(1)
}
"#,
    );
    assert_eq!(uart, "[ WARN ] memory low\n[ ERR  ] disk failed\n");
    assert_eq!(exit, Some(1));
}

#[test]
fn kernel_boot_string_labels_no_collision() {
    // Kernel stdlib (compiled with __kern_str_ prefix) and user code (str_ prefix)
    // both emit string literals. Verifies the two rodata namespaces don't collide.
    let (uart, exit) = run_kernel_hll(
        r#"
external klog_ok: (msg: u8*)
external klog_int: (label: u8*, val: i64)
external kshutdown: (code: i64)

kmain: () {
    klog_ok("user string A".ptr)
    klog_int("user string B".ptr, 99)
    kshutdown(0)
}
"#,
    );
    assert_eq!(uart, "[  OK  ] user string A\nuser string B: 99\n");
    assert_eq!(exit, Some(0));
}

const MY_KERNEL_EXAMPLE: &str = os_runtime::kernel::MY_KERNEL;

#[test]
fn my_kernel_example_program() {
    let (uart, exit) = run_kernel_hll(MY_KERNEL_EXAMPLE);