#ifndef __LUNAIX_ARCH_FAILSAFE_H
#define __LUNAIX_ARCH_FAILSAFE_H

#define STACK_SANITY            0xbeefc0de

#ifndef __ASM__

#include <lunaix/types.h>

static inline bool
check_bootstack_sanity()
{
    extern unsigned int __kinit_stack_end[];

    return ( __kinit_stack_end[0] 
           | __kinit_stack_end[1]
           | __kinit_stack_end[2]
           | __kinit_stack_end[3]) == STACK_SANITY;
}

static inline void must_inline noret
failsafe_diagnostic() {
    // asm ("jmp __fatal_state");
    extern int failsafe_stack_top[];
#ifdef CONFIG_ARCH_X86_64
     asm (
        "movq %%rsp, %%rax\n"
        "movq %%rbp, %%rbx\n"

        "movq %0, %%rsp\n"

        "pushq %%rax\n"
        "pushq %%rbx\n"
        
        "call do_failsafe_unrecoverable\n"
        ::"r"(failsafe_stack_top) 
        :"memory"
    );
#else
     asm (
        "movl %%esp, %%eax\n"
        "movl %%ebp, %%ebx\n"

        "movl %0, %%esp\n"

        "pushl %%eax\n"
        "pushl %%ebx\n"
        
        "call do_failsafe_unrecoverable\n"
        ::"r"(failsafe_stack_top) 
        :"memory"
    );
#endif
    unreachable;
}

#endif

#endif /* __LUNAIX_FAILSAFE_H */