mirror of
https://gitlab.com/qemu-project/openbios.git
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4a2c065e4f
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@siriusit.co.uk> git-svn-id: svn://coreboot.org/openbios/trunk/openbios-devel@691 f158a5a8-5612-0410-a976-696ce0be7e32
93 lines
2.0 KiB
C
93 lines
2.0 KiB
C
#include "openbios/config.h"
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#include "libopenbios/bindings.h"
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#include "asm/types.h"
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/* program counter */
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extern ucell PC;
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extern unsigned char *dict;
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extern cell dicthead;
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extern ucell *last;
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struct eregs {
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uint32_t eax, ecx, edx, ebx, esp, ebp, esi, edi;
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uint32_t vector;
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uint32_t error_code;
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uint32_t eip;
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uint32_t cs;
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uint32_t eflags;
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};
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static const char * const exception_names[]= {
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"division by zero",
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"single step",
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"NMI",
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"breakpoint",
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"interrupt overflow",
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"bound range exceeded",
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"invalid opcode",
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"device unavailable",
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"double fault",
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"FPU segment overrun",
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"invalid TSS",
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"segment not present",
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"stack exception",
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"general protection fault",
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"page fault",
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"reserved",
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"floating point exception",
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"alignment check",
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"machine check exception",
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};
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void do_nothing(void);
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void do_nothing(void)
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{
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printk("Doing nothing\n");
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}
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void x86_exception(struct eregs *info);
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void x86_exception(struct eregs *info)
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{
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if(info->vector <= 18) {
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printk("\nUnexpected Exception: %s",
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exception_names[info->vector]);
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} else {
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printk("\nUnexpected Exception: %d", info->vector);
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}
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printk(
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" @ %02x:%08lx - Halting\n"
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"Code: %d eflags: %08lx\n"
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"eax: %08lx ebx: %08lx ecx: %08lx edx: %08lx\n"
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"edi: %08lx esi: %08lx ebp: %08lx esp: %08lx\n",
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info->cs, (unsigned long)info->eip,
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info->error_code, (unsigned long)info->eflags,
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(unsigned long)info->eax, (unsigned long)info->ebx,
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(unsigned long)info->ecx, (unsigned long)info->edx,
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(unsigned long)info->edi, (unsigned long)info->esi,
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(unsigned long)info->ebp, (unsigned long)info->esp);
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printk("\ndict=0x%x here=0x%x(dict+0x%x) pc=0x%x(dict+0x%x)\n",
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(ucell)dict, (ucell)dict + dicthead, dicthead, PC, PC - (ucell) dict);
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printk("dstackcnt=%d rstackcnt=%d\n",
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dstackcnt, rstackcnt);
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rstackcnt=0;
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dstackcnt=0;
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PC=findword("outer-interpreter");
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info->eip=(uint32_t)&do_nothing;
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/*
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for (;;)
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asm("hlt;");
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;
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*/
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}
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