kern: src/panic.c annotate

kern

annotate src/panic.c @ 13:6c9138a87e02

added register dump in panic()

author	John Tsiombikas <nuclear@member.fsf.org>
date	Wed, 23 Feb 2011 00:12:36 +0200
parents	cccaa40f5432
children	5f6c5751ae05

rev	line source
nuclear@11	1 #include <stdio.h>
nuclear@13	2 #include <string.h>
nuclear@11	3 #include <stdarg.h>
nuclear@11	4 #include "asmops.h"
nuclear@11	5
nuclear@13	6 struct registers {
nuclear@13	7 uint32_t eax, ebx, ecx, edx;
nuclear@13	8 uint32_t esp, ebp, esi, edi;
nuclear@13	9 uint32_t eflags;
nuclear@13	10 uint32_t cs, ss, ds, es, fs, gs;
nuclear@13	11 uint32_t cr0, cr1, cr2, cr3;
nuclear@13	12 };
nuclear@13	13
nuclear@13	14 /* defined in regs.S */
nuclear@13	15 void get_regs(struct registers *regs);
nuclear@13	16
nuclear@11	17 void panic(const char *fmt, ...)
nuclear@11	18 {
nuclear@11	19 va_list ap;
nuclear@13	20 struct registers regs;
nuclear@13	21
nuclear@13	22 disable_intr();
nuclear@13	23
nuclear@13	24 memset(&regs, 0, sizeof regs);
nuclear@13	25 get_regs(&regs);
nuclear@11	26
nuclear@11	27 printf("~~~~~ kernel panic ~~~~~\n");
nuclear@11	28 va_start(ap, fmt);
nuclear@11	29 vprintf(fmt, ap);
nuclear@11	30 va_end(ap);
nuclear@11	31
nuclear@13	32 printf("\nRegisters:\n");
nuclear@13	33 printf("eax: %x, ebx: %x, ecx: %x, edx: %x\n", regs.eax, regs.ebx, regs.ecx, regs.edx);
nuclear@13	34 printf("esp: %x, ebp: %x, esi: %x, edi: %x\n", regs.esp, regs.ebp, regs.esi, regs.edi);
nuclear@13	35 printf("eflags: %x\n", regs.eflags);
nuclear@13	36 printf("cr0: %x, cr1: %x, cr2: %x, cr3: %x\n", regs.cr0, regs.cr1, regs.cr2, regs.cr3);
nuclear@13	37 printf("cs: %x (%d\|%d)\n", regs.cs, regs.cs >> 3, regs.cs & 3);
nuclear@13	38 printf("ss: %x (%d\|%d)\n", regs.ss, regs.ss >> 3, regs.ss & 3);
nuclear@13	39 printf("ds: %x (%d\|%d)\n", regs.ds, regs.ds >> 3, regs.ds & 3);
nuclear@13	40 printf("es: %x (%d\|%d)\n", regs.es, regs.es >> 3, regs.es & 3);
nuclear@13	41 printf("fs: %x (%d\|%d)\n", regs.fs, regs.fs >> 3, regs.fs & 3);
nuclear@13	42 printf("gs: %x (%d\|%d)\n", regs.gs, regs.gs >> 3, regs.gs & 3);
nuclear@13	43
nuclear@11	44 halt_cpu();
nuclear@11	45 }