Cleanup of the debug stuff, prepared for blue screen debugging.

kernel_debugger() didn't do enough before; panic() did all the work - but
since the former is a public function as well, I moved all the functionality
to it. Also fixed a possible buffer overrun in panic().
Renamed dbg_* to debug_*.
"serial_debug_port" setting did not ignore negative values.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12889 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/arch/dbg_console.h

@@ -18,13 +18,13 @@ struct kernel_args;
 extern "C" {
 #endif
 
-char arch_dbg_con_read(void);
-char arch_dbg_con_putch(char c);
-void arch_dbg_con_puts(const char *s);
+char arch_debug_serial_getchar(void);
+char arch_debug_serial_putchar(char c);
+void arch_debug_serial_puts(const char *s);
+void arch_debug_serial_early_boot_message(const char *string);
 
-void arch_dbg_con_early_boot_message(const char *string);
-status_t arch_dbg_con_init(struct kernel_args *args);
-status_t arch_dbg_con_init_settings(struct kernel_args *args);
+status_t arch_debug_console_init(struct kernel_args *args, char (**blueScreenGetChar)(void));
+status_t arch_debug_console_init_settings(struct kernel_args *args);
 
 #ifdef __cplusplus
 }

headers/private/kernel/arch/debug.h

@@ -18,9 +18,9 @@ struct kernel_args;
 extern "C" {
 #endif
 
-status_t arch_dbg_init(kernel_args *args);
-void *arch_get_caller(void);
-void arch_dbg_save_registers(int *);
+status_t arch_debug_init(kernel_args *args);
+void *arch_debug_get_caller(void);
+void arch_debug_save_registers(int *);
 
 #ifdef __cplusplus
 }