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https://github.com/Mathewnd/Astral.git
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Matheus
50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
#include <arch/panic.h>
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#include <arch/idt.h>
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#include <arch/regs.h>
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#include <stdio.h>
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#include <stddef.h>
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#include <arch/smp.h>
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#define TRACE_MAXDEPTH 10
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static void tracestack(uint64_t** addr){
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for(size_t depth = 0; depth < TRACE_MAXDEPTH; ++depth){
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uint64_t *calleeaddr = *(addr + 1);
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addr = (uint64_t**)*addr;
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printf("%lu: %p\n", depth, calleeaddr);
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if(depth == TRACE_MAXDEPTH || calleeaddr == 0) break;
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}
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}
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__attribute((noreturn)) void _panic(char* reason, arch_regs *reg){
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printf("PANIC: %s\n", reason);
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// XXX maybe this should be an NMI?
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arch_smp_sendipi(0, VECTOR_PANIC, IPI_CPU_ALLBUTSELF);
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if(reg){
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printf("Register dump:\nRAX: %p RBX: %p RCX: %p RDX: %p R8: %p R9: %p R10: %p R11: %p R12: %p R13: %p R14: %p R15: %p RDI: %p RSP: %p RBP: %p DS: %p ES: %p FS: %p GS: %p CR2: %p ERR: %p RIP: %p CS: %p RFLAGS: %p SS: %p\n",
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reg->rax, reg->rbx, reg->rcx, reg->rdx, reg->r8, reg->r9, reg->r10,
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reg->r11, reg->r12, reg->r13, reg->r14, reg->r15, reg->rdi, reg->rsp, reg->rbp, reg->ds, reg->es, reg->fs, reg->gs, reg->cr2, reg->error, reg->rip, reg->cs, reg->rflags, reg->ss
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);
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printf("Panic location: %p\n", reg->rip);
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if(reg->rbp != 0 && reg->cs == 0x28){
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printf("Stack trace:\n");
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tracestack((uint64_t**)reg->rbp);
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}
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}
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while(1){
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asm("cli;hlt;");
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}
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}
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