diff options
Diffstat (limited to 'i386/util/trap_dump.c')
| -rw-r--r-- | i386/util/trap_dump.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/i386/util/trap_dump.c b/i386/util/trap_dump.c new file mode 100644 index 0000000..62540d5 --- /dev/null +++ b/i386/util/trap_dump.c @@ -0,0 +1,63 @@ +/* + * Copyright (c) 1994 The University of Utah and + * the Center for Software Science (CSS). All rights reserved. + * + * Permission to use, copy, modify and distribute this software and its + * documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * THE UNIVERSITY OF UTAH AND CSS ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS + * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSS DISCLAIM ANY LIABILITY OF + * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * CSS requests users of this software to return to css-dist@cs.utah.edu any + * improvements that they make and grant CSS redistribution rights. + * + * Author: Bryan Ford, University of Utah CSS + */ + +#include <mach/machine/eflags.h> +#include <mach/machine/proc_reg.h> + +#include "vm_param.h" +#include "trap.h" + +void trap_dump(struct trap_state *st) +{ + short flags; + int from_user = (st->cs & 3) || (st->eflags & EFL_VM); + unsigned *dump_sp = 0; + int i; + + printf("Dump of trap_state at %08x:\n", st); + printf("EAX %08x EBX %08x ECX %08x EDX %08x\n", + st->eax, st->ebx, st->ecx, st->edx); + printf("ESI %08x EDI %08x EBP %08x ESP %08x\n", + st->esi, st->edi, st->ebp, + from_user ? st->esp : (unsigned)&st->esp); + printf("EIP %08x EFLAGS %08x\n", st->eip, st->eflags); + printf("CS %04x SS %04x DS %04x ES %04x FS %04x GS %04x\n", + st->cs & 0xffff, from_user ? st->ss & 0xffff : get_ss(), + st->ds & 0xffff, st->es & 0xffff, + st->fs & 0xffff, st->gs & 0xffff); + printf("v86: DS %04x ES %04x FS %04x GS %04x\n", + st->v86_ds & 0xffff, st->v86_es & 0xffff, + st->v86_gs & 0xffff, st->v86_gs & 0xffff); + printf("trapno %d, error %08x, from %s mode\n", + st->trapno, st->err, from_user ? "user" : "kernel"); + if (st->trapno == T_PAGE_FAULT) + printf("page fault linear address %08x\n", st->cr2); + + /* Dump the top of the stack too. */ + if (!from_user) + { + for (i = 0; i < 32; i++) + { + printf("%08x%c", (&st->esp)[i], + ((i & 7) == 7) ? '\n' : ' '); + } + } +} + |