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Cleanup i386 register printing and opcode extraction

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This commit is contained in:
reinoud 2011-12-14 19:40:02 +00:00
parent 6ac9c16da0
commit 9e0268f305
1 changed files with 13 additions and 5 deletions
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18
sys/arch/usermode/usermode/machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: machdep.c,v 1.36 2011/12/14 18:51:39 reinoud Exp $ */
/* $NetBSD: machdep.c,v 1.37 2011/12/14 19:40:02 reinoud Exp $ */
/*-
* Copyright (c) 2011 Reinoud Zandijk <reinoud@netbsd.org>
@ -32,7 +32,7 @@
#include "opt_urkelvisor.h"
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.36 2011/12/14 18:51:39 reinoud Exp $");
__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.37 2011/12/14 19:40:02 reinoud Exp $");
#include <sys/types.h>
#include <sys/param.h>
@ -167,18 +167,20 @@ mm_md_physacc(paddr_t pa, vm_prot_t prog)
#ifdef __i386__
#if 0
static void dump_regs(ucontext_t *ctx);
static void dump_regs(register_t *reg);;
static void
dump_regs(register_t *reg)
{
int i;
/* register dump before call */
const char *name[] = {"GS", "FS", "ES", "DS", "EDI", "ESI", "EBP", "ESP",
"EBX", "EDX", "ECX", "EAX", "TRAPNO", "ERR", "EIP", "CS", "EFL",
"UESP", "SS"};
for (i =0; i < 19; i++)
printf("reg[%02d] (%6s) = %"PRIx32"\n", i, name[i], reg[i]);
printf("reg[%02d] (%6s) = %"PRIx32"\n", i, name[i], (uint32_t) reg[i]);
}
#endif
@ -277,6 +279,12 @@ int
md_syscall_check_opcode(ucontext_t *ucp)
{
uint32_t opcode;
#if 0
register_t *reg;
reg = (register_t *) &ucp->uc_mcontext;
dump_regs(reg);
#endif
md_syscall_get_opcode(ucp, &opcode);
@ -293,7 +301,7 @@ md_syscall_check_opcode(ucontext_t *ucp)
void
md_syscall_get_opcode(ucontext_t *ucp, uint32_t *opcode)
{
uint *reg = (int *) &ucp->uc_mcontext;
register_t *reg = (register_t *) &ucp->uc_mcontext;
// uint8_t *p8 = (uint8_t *) (reg[14]);
uint16_t *p16 = (uint16_t*) (reg[14]);