:: limine / common / lib / panic.s2.c 2.0 KB raw

#include <stddef.h>

#include <stdbool.h>

#include <stdnoreturn.h>

#include <lib/print.h>

#include <lib/real.h>

#include <lib/trace.h>

#if defined (UEFI)

#   include <efi.h>

#endif

#include <lib/misc.h>

#include <lib/getchar.h>

#include <lib/gterm.h>

#include <lib/term.h>

#include <mm/pmm.h>

#include <menu.h>

​

noreturn void panic(bool allow_menu, const char *fmt, ...) {

    va_list args;

​

    va_start(args, fmt);

​

#if defined (UEFI)

    // Don't return to the menu under measured boot: a partial boot may

    // have already dirtied the TPM PCRs.

    if (measured_boot) {

        allow_menu = false;

    }

#endif

​

    quiet = false;

​

    FOR_TERM(TERM->autoflush = true);

​

    if (

#if defined (BIOS)

      stage3_loaded == true &&

#endif

      term_backend == _NOT_READY) {

        term_fallback();

    }

​

    if (

#if defined (BIOS)

      stage3_loaded == true &&

#endif

      term_backend != FALLBACK) {

        print("\033[31mPANIC\033[37;1m\033[0m: ");

    } else {

        print("PANIC: ");

    }

    vprint(fmt, args);

​

    va_end(args);

​

    print("\n");

    print_stacktrace(NULL);

​

    if (

#if defined (BIOS)

      stage3_loaded == true &&

#elif defined (UEFI)

      efi_boot_services_exited == false &&

#endif

      allow_menu == true) {

        print("Press a key to return to %s.", booting_from_editor ? "editor" : "menu");

​

        getchar();

​

        // This fixes a crash

        term_notready();

​

        menu(false);

/*

        fb_clear(&fbinfo);

        // release all uefi memory and return to firmware

        pmm_release_uefi_mem();

        gBS->Exit(efi_image_handle, EFI_ABORTED, 0, NULL);

*/

    } else {

#if defined (BIOS)

        print("Press CTRL+ALT+DEL to reboot.");

        rm_hcf();

#elif defined (UEFI)

        print("System halted.");

        for (;;) {

#if defined (__x86_64__) || defined (__i386__)

            asm ("hlt");

#elif defined (__aarch64__) || defined (__riscv)

            asm ("wfi");

#elif defined (__loongarch64)

            asm ("idle 0");

#else

#error Unknown architecture

#endif

        }

#endif

    }

}