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Fixed a typo; dbg_init2() called dbg_init() instead of arch_dbg_init(), causing

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many kernel debugger commands to be removed accidently...
Added a message if you entered an unknown command.
Some cleanups.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@758 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2002-08-14 00:04:59 +00:00
parent c65ac9cbe8
commit 6057f25bc6
1 changed files with 34 additions and 35 deletions
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69
src/kernel/core/debug.c
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@ -62,9 +62,9 @@ debug_read_line(char *buf, int max_len)
bool done = false;
int cur_history_spot = cur_line;
while(!done) {
while (!done) {
c = arch_dbg_con_read();
switch(c) {
switch (c) {
case '\n':
case '\r':
buf[ptr++] = '\0';
@ -72,7 +72,7 @@ debug_read_line(char *buf, int max_len)
done = true;
break;
case 8: // backspace
if(ptr > 0) {
if (ptr > 0) {
dbg_puts("\x1b[1D"); // move to the left one
dbg_putch(' ');
dbg_puts("\x1b[1D"); // move to the left one
@ -82,13 +82,13 @@ debug_read_line(char *buf, int max_len)
case 27: // escape sequence
c = arch_dbg_con_read(); // should be '['
c = arch_dbg_con_read();
switch(c) {
switch (c) {
case 67: // right arrow acts like space
buf[ptr++] = ' ';
dbg_putch(' ');
break;
case 68: // left arrow acts like backspace
if(ptr > 0) {
if (ptr > 0) {
dbg_puts("\x1b[1D"); // move to the left one
dbg_putch(' ');
dbg_puts("\x1b[1D"); // move to the left one
@ -102,20 +102,19 @@ debug_read_line(char *buf, int max_len)
// dprintf("1c %d h %d ch %d\n", cur_line, history_line, cur_history_spot);
if(c == 65) {
if (c == 65) {
// up arrow
history_line = cur_history_spot - 1;
if(history_line < 0)
if (history_line < 0)
history_line = HISTORY_SIZE - 1;
} else {
// down arrow
if(cur_history_spot != cur_line) {
if (cur_history_spot != cur_line) {
history_line = cur_history_spot + 1;
if(history_line >= HISTORY_SIZE)
history_line = 0;
} else {
} else
break; // nothing to do here
}
}
// dprintf("2c %d h %d ch %d\n", cur_line, history_line, cur_history_spot);
@ -141,7 +140,7 @@ debug_read_line(char *buf, int max_len)
* If we get a $ at the beginning of the line
* we assume we are talking with GDB
*/
if(ptr == 0) {
if (ptr == 0) {
strcpy(buf, "gdb");
ptr= 4;
done= true;
@ -153,7 +152,7 @@ debug_read_line(char *buf, int max_len)
buf[ptr++] = c;
dbg_putch(c);
}
if(ptr >= max_len - 2) {
if (ptr >= max_len - 2) {
buf[ptr++] = '\0';
dbg_puts("\n");
done = true;
@ -174,22 +173,21 @@ debug_parse_line(char *buf, char **argv, int *argc, int max_args)
if (!isspace(parse_line[0])) {
argv[0] = parse_line;
*argc = 1;
} else {
} else
*argc = 0;
}
while (parse_line[pos] != '\0') {
if (isspace(parse_line[pos])) {
parse_line[pos] = '\0';
// scan all of the whitespace out of this
while(isspace(parse_line[++pos]))
while (isspace(parse_line[++pos]))
;
if(parse_line[pos] == '\0')
if (parse_line[pos] == '\0')
break;
argv[*argc] = &parse_line[pos];
(*argc)++;
if(*argc >= max_args - 1)
if (*argc >= max_args - 1)
break;
}
pos++;
@ -214,21 +212,24 @@ kernel_debugger_loop()
dprintf("kdebug> ");
debug_read_line(line_buf[cur_line], LINE_BUF_SIZE);
debug_parse_line(line_buf[cur_line], args, &argc, MAX_ARGS);
if(argc <= 0)
if (argc <= 0)
continue;
debugger_on_cpu = smp_get_current_cpu();
cmd = commands;
while(cmd != NULL) {
if(strcmp(args[0], cmd->name) == 0) {
while (cmd != NULL) {
if (strcmp(args[0], cmd->name) == 0) {
cmd->func(argc, args);
break;
}
cmd = cmd->next;
}
if (cmd == NULL)
dprintf("unknown command, enter \"help\" to get a list of all supported commands\n");
cur_line++;
if(cur_line >= HISTORY_SIZE)
if (cur_line >= HISTORY_SIZE)
cur_line = 0;
}
}
@ -267,7 +268,7 @@ panic(const char *fmt, ...)
dprintf("PANIC%d: %s", smp_get_current_cpu(), temp);
if(debugger_on_cpu != smp_get_current_cpu()) {
if (debugger_on_cpu != smp_get_current_cpu()) {
// halt all of the other cpus
// XXX need to flush current smp mailbox to make sure this goes
@ -289,7 +290,7 @@ dprintf(const char *fmt, ...)
char temp[512];
int ret = 0;
if(serial_debug_on) {
if (serial_debug_on) {
va_start(args, fmt);
ret = vsprintf(temp, fmt, args);
va_end(args);
@ -307,7 +308,7 @@ dbg_putch(char c)
int flags = disable_interrupts();
acquire_spinlock(&dbg_spinlock);
if(serial_debug_on)
if (serial_debug_on)
ret = arch_dbg_con_putch(c);
else
ret = c;
@ -325,7 +326,7 @@ dbg_puts(const char *s)
int flags = disable_interrupts();
acquire_spinlock(&dbg_spinlock);
if(serial_debug_on)
if (serial_debug_on)
arch_dbg_con_puts(s);
release_spinlock(&dbg_spinlock);
@ -334,12 +335,12 @@ dbg_puts(const char *s)
int
add_debugger_command(const char * name, int (*func)(int, char **), const char * desc)
add_debugger_command(const char *name, int (*func)(int, char **), const char *desc)
{
int flags;
struct debugger_command *cmd;
cmd = (struct debugger_command *) kmalloc(sizeof(struct debugger_command));
cmd = (struct debugger_command *)kmalloc(sizeof(struct debugger_command));
if (cmd == NULL)
return ENOMEM;
@ -378,14 +379,14 @@ remove_debugger_command(const char * name, int (*func)(int, char **))
break;
prev = cmd;
cmd = cmd->next;
};
}
if (cmd) {
if (cmd == commands)
commands = cmd->next;
else
prev->next = cmd->next;
};
}
release_spinlock(&dbg_spinlock);
restore_interrupts(flags);
@ -393,7 +394,7 @@ remove_debugger_command(const char * name, int (*func)(int, char **))
if (cmd) {
kfree(cmd);
return B_NO_ERROR;
};
}
return B_NAME_NOT_FOUND;
}
@ -414,11 +415,11 @@ cmd_help(int argc, char **argv)
dprintf("debugger commands:\n");
cmd = commands;
while(cmd != NULL) {
while (cmd != NULL) {
dprintf(" %-32s\t\t%s\n", cmd->name, cmd->description);
cmd = cmd->next;
}
return 0;
}
@ -439,9 +440,7 @@ dbg_init2(kernel_args *ka)
add_debugger_command("reboot", &cmd_reboot, "Reboot");
add_debugger_command("gdb", &cmd_gdb, "Connect to remote gdb");
dbg_init(ka);
return B_NO_ERROR;
return arch_dbg_init(ka);
}