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#include <cstdint>
#include <arch/x86_64/interrupts/idt.hpp>
#include <etc/logging.hpp>
#include <arch/x86_64/cpu/data.hpp>
#include <generic/locks/spinlock.hpp>
#include <etc/bootloaderinfo.hpp>
#include <generic/mm/vmm.hpp>
#include <arch/x86_64/scheduling.hpp>
#include <generic/mm/paging.hpp>
typedef struct stackframe {
struct stackframe* rbp;
uint64_t rip;
} __attribute__((packed)) stackframe_t;
int is_panic = 0;
int last_sys = 0;
void panic(int_frame_t* ctx, const char* msg) {
memory::paging::enablekernel();
if(is_panic)
asm volatile("hlt");
if(ctx) {
if(ctx->cs != 0x08)
asm volatile("swapgs");
}
arch::x86_64::process_t* proc = arch::x86_64::cpu::data()->temp.proc;
if(proc && 1) {
uint64_t cr2;
asm volatile("mov %%cr2, %0" : "=r"(cr2) : : "memory");
vmm_obj_t* current1 = (vmm_obj_t*)proc->vmm_start;
current1->lock.unlock();
vmm_obj_t* obj = memory::vmm::getlen(proc,ctx->rip);
// if(ctx->vec == 14) {
// vmm_obj_t* obj0 = memory::vmm::getlen(proc,cr2);
// if(obj0) {
// if(obj0->cow_connect && !obj0->is_own_page && obj0->base != 0 ) {
// Log::SerialDisplay(LEVEL_MESSAGE_INFO,"trying to cow 0x%p\n",cr2);
// //memory::vmm::cow(proc,cr2);
// if(ctx->cs & 3)
// ctx->ss |= 3;
// if(ctx->ss & 3)
// ctx->cs |= 3;
// if(ctx->cs == 0x20)
// ctx->cs |= 3;
// if(ctx->ss == 0x18)
// ctx->ss |= 3;
// if(ctx->cs != 0x08)
// asm volatile("swapgs");
// schedulingEnd(ctx);
// } else if(obj0->is_mapped) {
// obj0->flags |= PTE_RW;
// memory::paging::maprangeid(proc->original_cr3,obj0->phys,obj0->base,obj0->len,obj0->flags,*proc->vmm_id);
// if(ctx->cs & 3)
// ctx->ss |= 3;
// if(ctx->ss & 3)
// ctx->cs |= 3;
// if(ctx->cs == 0x20)
// ctx->cs |= 3;
// if(ctx->ss == 0x18)
// ctx->ss |= 3;
// if(ctx->cs != 0x08)
// asm volatile("swapgs");
// schedulingEnd(ctx);
// }
// }
// }
Log::SerialDisplay(LEVEL_MESSAGE_FAIL,"process %d fired cpu exception with vec %d, rip 0x%p (offset 0x%p), cr2 0x%p, error code 0x%p, lastsys %d, rdx 0x%p rbp 0x%p\n",proc->id,ctx->vec,ctx->rip,ctx->rip - 0x41400000,cr2,ctx->err_code,proc->sys,ctx->rdx,ctx->rbp);
vmm_obj_t* current = (vmm_obj_t*)proc->vmm_start;
while(1) {
Log::SerialDisplay(LEVEL_MESSAGE_INFO,"Memory 0x%p-0x%p (with offset rip 0x%p)\n",current->base,current->base + current->src_len, ctx->rip - current->base);
if (current->base == (std::uint64_t)Other::toVirt(0) - 4096)
break;
current = current->next;
}
stackframe_t* rbp = (stackframe_t*)ctx->rbp;
memory::paging::enablepaging(ctx->cr3);
Log::SerialDisplay(LEVEL_MESSAGE_INFO,"[0] - 0x%016llX (current rip)\n",ctx->rip);
for (int i = 1; i < 25 && rbp; ++i) {
std::uint64_t ret_addr = rbp->rip;
Log::SerialDisplay(LEVEL_MESSAGE_INFO,"[%d] - 0x%016llX\n", i, ret_addr);
rbp = (stackframe_t*)rbp->rbp;
}
memory::paging::enablekernel();
arch::x86_64::scheduling::kill(proc);
schedulingSchedule(0);
}
int_frame_t test_ctx = {0};
if(!ctx)
ctx = &test_ctx;
is_panic = 1;
extern locks::spinlock log_lock;
log_lock.unlock();
uint64_t cr2;
asm volatile("mov %%cr2, %0" : "=r"(cr2) : : "memory");
Log::Display(LEVEL_MESSAGE_FAIL,R"EOF(
)
( /( ( (
)\()) ( ) ( ( ( ( )\ ) ( ) )\ )
((_)\ )( ( /( ( )\))( ))\ )\ ( (()/( ))\( /( (()/( __
((_)(()\ )(_)) )\ )((_))\ /((_) ((_))\ ((_))((_)(_)) ((_)) _ / /
/ _ \ ((_|(_)_ _(_/( (()(_|_)) (_|(_) _| (_))((_)_ _| | (_) |
| (_) | '_/ _` | ' \)) _` |/ -_) | (_-< / _` / -_) _` / _` | _| |
\___/|_| \__,_|_||_|\__, |\___| |_/__/ \__,_\___\__,_\__,_| (_)\_\
|___/
)EOF");
Log::Raw("Kernel panic\n\nReason: %s\n",msg);
Log::Raw("RAX: 0x%016llX RBX: 0x%016llX RDX: 0x%016llX RCX: 0x%016llX RDI: 0x%016llX\n"
"RSI: 0x%016llX R8: 0x%016llX R9: 0x%016llX R10: 0x%016llX R11: 0x%016llX\n"
"R12: 0x%016llX R13: 0x%016llX R14: 0x%016llX R15: 0x%016llX RBP: 0x%016llX\n"
"RSP: 0x%016llX CR2: 0x%016llX CR3: 0x%016llX\n"
"CPU: %d Vec: %d Err: %d Last Syscall: %d\n",
ctx->rax, ctx->rbx, ctx->rdx, ctx->rcx, ctx->rdi,
ctx->rsi, ctx->r8, ctx->r9, ctx->r10, ctx->r11,
ctx->r12, ctx->r13, ctx->r14, ctx->r15, ctx->rbp,
ctx->rsp, cr2, ctx->cr3,
arch::x86_64::cpu::data()->smp.cpu_id, ctx->vec, ctx->err_code,arch::x86_64::cpu::data()->last_sys);
Log::Raw("\n Stacktrace\n\n");
stackframe_t* rbp = (stackframe_t*)ctx->rbp;
Log::Raw("[0] - 0x%016llX (current rip)\n",ctx->rip);
for (int i = 1; i < 5 && rbp; ++i) {
std::uint64_t ret_addr = rbp->rip;
Log::Raw("[%d] - 0x%016llX\n", i, ret_addr);
rbp = (stackframe_t*)rbp->rbp;
}
asm volatile("hlt");
}
extern "C" void CPUKernelPanic(int_frame_t* ctx) {
panic(ctx,"\"cpu exception\"");
}
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