M7350/bootable/bootloader/lk/arch/x86/faults.c
2024-09-09 08:52:07 +00:00

78 lines
2.6 KiB
C

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