290e3dd228
debugger and added respective getter/setter methods
debug_{get,set}_debugged_thread(). By default the currently debugged
thread is the thread that dropped into the kernel debugger, but commands
like "in_context" can change it.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27164 a95241bf-73f2-0310-859d-f6bbb57e9c96
142 lines
4.1 KiB
C
142 lines
4.1 KiB
C
/*
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* Copyright 2002-2008, Axel Dörfler, axeld@pinc-software.de
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* Distributed under the terms of the Haiku License.
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*
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* Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
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* Distributed under the terms of the NewOS License.
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*/
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#ifndef _KERNEL_DEBUG_H
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#define _KERNEL_DEBUG_H
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#include <KernelExport.h>
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#include <module.h>
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#define KDEBUG 1
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#if DEBUG
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/*
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* The kernel debug level.
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* Level 1 is usual asserts, > 1 should be used for very expensive runtime checks
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*/
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# define KDEBUG 1
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#endif
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#define ASSERT_ALWAYS(x) \
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do { if (!(x)) { panic("ASSERT FAILED (%s:%d): %s\n", __FILE__, __LINE__, #x); } } while (0)
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#define ASSERT_ALWAYS_PRINT(x, format...) \
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do { \
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if (!(x)) { \
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dprintf_no_syslog(format); \
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panic("ASSERT FAILED (%s:%d): %s\n", __FILE__, __LINE__, #x); \
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} \
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} while (0)
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#if KDEBUG
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# define ASSERT(x) ASSERT_ALWAYS(x)
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# define ASSERT_PRINT(x, format...) ASSERT_ALWAYS_PRINT(x, format)
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#else
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# define ASSERT(x) do { } while(0)
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# define ASSERT_PRINT(x, format...) do { } while(0)
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#endif
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#if KDEBUG
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# define KDEBUG_ONLY(x) x
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#else
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# define KDEBUG_ONLY(x) /* nothing */
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#endif
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// command return value
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#define B_KDEBUG_ERROR 4
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// command flags
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#define B_KDEBUG_DONT_PARSE_ARGUMENTS (0x01)
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#define B_KDEBUG_PIPE_FINAL_RERUN (0x02)
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struct debugger_module_info {
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module_info info;
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void (*enter_debugger)(void);
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void (*exit_debugger)(void);
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// io hooks
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int (*debugger_puts)(const char *str, int32 length);
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int (*debugger_getchar)(void);
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// TODO: add hooks for tunnelling gdb ?
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};
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extern int dbg_register_file[B_MAX_CPU_COUNT][14];
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typedef struct debug_page_fault_info {
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addr_t fault_address;
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addr_t pc;
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uint32 flags;
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} debug_page_fault_info;
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// debug_page_fault_info::flags
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#define DEBUG_PAGE_FAULT_WRITE 0x01 /* write fault */
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#define DEBUG_PAGE_FAULT_NO_INFO 0x02 /* fault address and read/write
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unknown */
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct kernel_args;
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extern status_t debug_init(struct kernel_args *args);
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extern status_t debug_init_post_vm(struct kernel_args *args);
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extern status_t debug_init_post_modules(struct kernel_args *args);
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extern void debug_early_boot_message(const char *string);
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extern void debug_puts(const char *s, int32 length);
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extern bool debug_debugger_running(void);
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extern bool debug_screen_output_enabled(void);
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extern void debug_stop_screen_debug_output(void);
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extern void debug_set_page_fault_info(addr_t faultAddress, addr_t pc,
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uint32 flags);
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extern debug_page_fault_info* debug_get_page_fault_info();
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extern void kputs(const char *string);
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extern void kputs_unfiltered(const char *string);
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extern void kprintf_unfiltered(const char *format, ...)
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__attribute__ ((format (__printf__, 1, 2)));
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extern void dprintf_no_syslog(const char *format, ...)
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__attribute__ ((format (__printf__, 1, 2)));
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extern bool is_debug_variable_defined(const char* variableName);
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extern bool set_debug_variable(const char* variableName, uint64 value);
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extern uint64 get_debug_variable(const char* variableName,
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uint64 defaultValue);
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extern bool unset_debug_variable(const char* variableName);
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extern void unset_all_debug_variables();
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extern bool evaluate_debug_expression(const char* expression,
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uint64* result, bool silent);
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extern int evaluate_debug_command(const char* command);
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extern status_t parse_next_debug_command_argument(const char** expressionString,
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char* buffer, size_t bufferSize);
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extern status_t add_debugger_command_etc(const char* name,
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debugger_command_hook func, const char* description,
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const char* usage, uint32 flags);
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extern status_t add_debugger_command_alias(const char* newName,
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const char* oldName, const char* description);
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extern bool print_debugger_command_usage(const char* command);
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extern void debug_set_demangle_hook(const char *(*hook)(const char *));
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extern const char *debug_demangle(const char *);
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extern struct thread* debug_set_debugged_thread(struct thread* thread);
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extern struct thread* debug_get_debugged_thread();
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extern void _user_debug_output(const char *userString);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _KERNEL_DEBUG_H */
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