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* Added support for the "--help" argument to some debugger commands.

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* The kernel debugger does now define some temporary variables when
  entered (current thread and team, etc.).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23549 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold
2008-01-16 01:14:40 +00:00
parent 13ab80745a
commit 15f1e19781
2 changed files with 81 additions and 10 deletions
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src/system/kernel/debug/debug.cpp
+46 -2
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@@ -497,6 +497,15 @@ kernel_debugger_loop(void)
int32 previousCPU = sDebuggerOnCPU;
sDebuggerOnCPU = smp_get_current_cpu();
// set a few temporary debug variables
if (struct thread* thread = thread_get_current_thread()) {
set_debug_variable("_thread", (uint64)(addr_t)thread);
set_debug_variable("_threadID", thread->id);
set_debug_variable("_team", (uint64)(addr_t)thread->team);
set_debug_variable("_teamID", thread->team->id);
set_debug_variable("_cpu", sDebuggerOnCPU);
}
kprintf("Welcome to Kernel Debugging Land...\n");
kprintf("Running on CPU %ld\n", sDebuggerOnCPU);
@@ -549,6 +558,13 @@ kernel_debugger_loop(void)
static int
cmd_reboot(int argc, char **argv)
{
static const char* usage = "usage: %s\n"
"Reboots the system.\n";
if (argc > 1 && strcmp(argv[1], "--help") == 0) {
kprintf(usage, argv[0]);
return 0;
}
arch_cpu_shutdown(true);
return 0;
// I'll be really suprised if this line ever runs! ;-)
@@ -558,6 +574,13 @@ cmd_reboot(int argc, char **argv)
static int
cmd_shutdown(int argc, char **argv)
{
static const char* usage = "usage: %s\n"
"Shuts down the system.\n";
if (argc > 1 && strcmp(argv[1], "--help") == 0) {
kprintf(usage, argv[0]);
return 0;
}
arch_cpu_shutdown(false);
return 0;
}
@@ -566,6 +589,13 @@ cmd_shutdown(int argc, char **argv)
static int
cmd_help(int argc, char **argv)
{
static const char* usage = "usage: %s\n"
"Lists all debugger commands.\n";
if (argc > 1 && strcmp(argv[1], "--help") == 0) {
kprintf(usage, argv[0]);
return 0;
}
debugger_command *command, *specified = NULL;
const char *start = NULL;
int32 startLength = 0;
@@ -604,6 +634,13 @@ cmd_help(int argc, char **argv)
static int
cmd_continue(int argc, char **argv)
{
static const char* usage = "usage: %s\n"
"Leaves kernel debugger.\n";
if (argc > 1 && strcmp(argv[1], "--help") == 0) {
kprintf(usage, argv[0]);
return 0;
}
return B_KDEBUG_QUIT;
}
@@ -611,6 +648,13 @@ cmd_continue(int argc, char **argv)
static int
cmd_dump_kdl_message(int argc, char **argv)
{
static const char* usage = "usage: %s\n"
"Reprints the message printed when entering KDL.\n";
if (argc > 1 && strcmp(argv[1], "--help") == 0) {
kprintf(usage, argv[0]);
return 0;
}
if (sCurrentKernelDebuggerMessage) {
kputs(sCurrentKernelDebuggerMessage);
kputchar('\n');
@@ -622,10 +666,10 @@ cmd_dump_kdl_message(int argc, char **argv)
static int
cmd_expr(int argc, char **argv)
{
static const char* usage = "usage: expr <expression>\n"
static const char* usage = "usage: %s <expression>\n"
"Evaluates the given expression and prints the result.\n";
if (argc != 2 || strcmp(argv[1], "--help") == 0) {
kprintf(usage);
kprintf(usage, argv[0]);
return 0;
}