[src/trunk]: src/sys/arch/usermode/usermode Enhance system call prints by pri...

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

details:   https://anonhg.NetBSD.org/src/rev/82239cab6c39
branches:  trunk
changeset: 771983:82239cab6c39
user:      reinoud <reinoud%NetBSD.org@localhost>
date:      Mon Dec 12 15:05:36 2011 +0000

description:
Enhance system call prints by printing out the execve() arguments

diffstat:

 sys/arch/usermode/usermode/syscall.c |  28 ++++++++++++++++++++++++++--
 1 files changed, 26 insertions(+), 2 deletions(-)

diffs (56 lines):

diff -r c19d547c6b19 -r 82239cab6c39 sys/arch/usermode/usermode/syscall.c
--- a/sys/arch/usermode/usermode/syscall.c      Mon Dec 12 15:04:51 2011 +0000
+++ b/sys/arch/usermode/usermode/syscall.c      Mon Dec 12 15:05:36 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: syscall.c,v 1.15 2011/12/12 13:14:23 reinoud Exp $ */
+/* $NetBSD: syscall.c,v 1.16 2011/12/12 15:05:36 reinoud Exp $ */
 
 /*-
  * Copyright (c) 2007 Jared D. McNeill <jmcneill%invisible.ca@localhost>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: syscall.c,v 1.15 2011/12/12 13:14:23 reinoud Exp $");
+__KERNEL_RCSID(0, "$NetBSD: syscall.c,v 1.16 2011/12/12 15:05:36 reinoud Exp $");
 
 #include <sys/types.h>
 #include <sys/param.h>
@@ -157,6 +157,8 @@
 static void
 syscall_args_print(lwp_t *l, int code, int nargs, int argsize, register_t *args)
 {
+       char **argv, **envp;
+
 //return;
        if (code != 4) {
                printf("lwp %p, code %3d, nargs %d, argsize %3d\t%s(", 
@@ -173,6 +175,28 @@
                        break;
                case 58:
                        printf("\"%s\", %"PRIx32", %"PRIx32"", (char *) (args[0]), (uint) (args[1]), (uint) args[2]);
+                       break;
+               case 59:
+                       printf("\"%s\", [", (char *) (args[0]));
+                       argv = (char **) (args[1]);
+                       if (*argv) {
+                               while (*argv) {
+                                       printf("\"%s\", ", *argv);
+                                       argv++;
+                               }
+                               printf("\b\b");
+                       }
+                       printf("], [");
+                       envp = (char **) (args[2]);
+                       if (*envp) {
+                               while (*envp) {
+                                       printf("\"%s\", ", *envp);
+                                       envp++;
+                               }
+                               printf("\b\b");
+                       }
+                       printf("]");
+                       break;
                default:
                        for (int i = 0; i < nargs; i++)
                                printf("%"PRIx32", ", (uint) args[i]);