[src/trunk]: src/sys/arch/usermode/usermode Print the byte codes that failed

[reinoud <reinoud%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/4a181df0f563
branches:  trunk
changeset: 769367:4a181df0f563
user:      reinoud <reinoud%NetBSD.org@localhost>
date:      Wed Sep 07 10:00:19 2011 +0000

description:
Print the byte codes that failed

State actions to implement.

diffstat:

 sys/arch/usermode/usermode/trap.c |  20 +++++++++++---------
 1 files changed, 11 insertions(+), 9 deletions(-)

diffs (55 lines):

diff -r c0733791c341 -r 4a181df0f563 sys/arch/usermode/usermode/trap.c
--- a/sys/arch/usermode/usermode/trap.c Wed Sep 07 09:24:55 2011 +0000
+++ b/sys/arch/usermode/usermode/trap.c Wed Sep 07 10:00:19 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: trap.c,v 1.30 2011/09/06 09:55:04 jmcneill Exp $ */
+/* $NetBSD: trap.c,v 1.31 2011/09/07 10:00:19 reinoud Exp $ */
 
 /*-
  * Copyright (c) 2011 Reinoud Zandijk <reinoud%netbsd.org@localhost>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: trap.c,v 1.30 2011/09/06 09:55:04 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: trap.c,v 1.31 2011/09/07 10:00:19 reinoud Exp $");
 
 #include <sys/types.h>
 #include <sys/param.h>
@@ -233,15 +233,11 @@
 static void
 illegal_instruction_handler(int sig, siginfo_t *info, void *ctx)
 {
-       static volatile int recurse = 0;
        struct proc *p;
        struct lwp *l;
        struct pcb *pcb;
        vaddr_t va;
 
-       recurse++;
-       if (recurse > 1)
-               printf("enter trap recursion level %d\n", recurse);
        if (info->si_signo == SIGILL) {
                l = curlwp;
                p = l->l_proc;
@@ -278,11 +274,17 @@
                        printf("\t\tInternal stack error");
                printf("\tsi_addr = %p\n", info->si_addr);
                printf("\tsi_trap = %d\n", info->si_trap);
+
+               printf("%p : ", info->si_addr);
+               for (int i = 0; i < 10; i++)
+                       printf("%02x ", *((uint8_t *) info->si_addr + i));
+               printf("\n");
 #endif
 
-               if (recurse > 1)
-                       printf("leaving trap recursion level %d\n", recurse);
-               recurse--;
+               /* TODO MD host to NetBSD MD ucontext fixup */
+               /* TODO MD syscall pre-fixup  */
+               /* TODO system call issueing  */
+               /* TODO MD syscall post-fixup */
 
                panic("illegal instruction encountered\n");
        }