78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
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/*
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* Copyright (c) 2009 Corey Tabaka
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <debug.h>
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#include <arch/x86.h>
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#include <kernel/thread.h>
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static void dump_fault_frame(struct x86_iframe *frame)
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{
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dprintf(CRITICAL, " CS: %04x EIP: %08x EFL: %08x CR2: %08x\n",
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frame->cs, frame->eip, frame->eflags, x86_get_cr2());
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dprintf(CRITICAL, "EAX: %08x ECX: %08x EDX: %08x EBX: %08x\n",
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frame->eax, frame->ecx, frame->edx, frame->ebx);
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dprintf(CRITICAL, "ESP: %08x EBP: %08x ESI: %08x EDI: %08x\n",
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frame->esp, frame->ebp, frame->esi, frame->edi);
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dprintf(CRITICAL, " DS: %04x ES: %04x FS: %04x GS: %04x\n",
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frame->ds, frame->es, frame->fs, frame->gs);
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// dump the bottom of the current stack
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addr_t stack = (addr_t) frame; //(addr_t) (((uint32_t *) frame) + (sizeof(struct x86_iframe) / sizeof(uint32_t) - 1));
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if (stack != 0) {
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dprintf(CRITICAL, "bottom of stack at 0x%08x:\n", (unsigned int)stack);
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hexdump((void *)stack, 192);
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}
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}
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static void exception_die(struct x86_iframe *frame, const char *msg)
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{
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inc_critical_section();
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dprintf(CRITICAL, msg);
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dump_fault_frame(frame);
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for (;;) {
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x86_cli();
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x86_hlt();
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}
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}
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void x86_syscall_handler(struct x86_iframe *frame)
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{
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exception_die(frame, "unhandled syscall, halting\n");
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}
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void x86_gpf_handler(struct x86_iframe *frame)
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{
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exception_die(frame, "unhandled gpf, halting\n");
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}
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void x86_invop_handler(struct x86_iframe *frame)
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{
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exception_die(frame, "unhandled invalid op, halting\n");
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}
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void x86_unhandled_exception(struct x86_iframe *frame)
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{
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exception_die(frame, "unhandled exception, halting\n");
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}
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