debug.c File Reference

#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <signal.h>
#include "asm.h"
#include "processor.h"
#include "spinlock.h"
#include "lwp.h"
#include "lwp_threads.h"
#include "sys_state.h"
#include "context.h"
#include "cache.h"
#include "video.h"
#include "ogcsys.h"
#include "lwp_config.h"
#include "tcpip.h"
#include "geckousb.h"
#include "debug_if.h"
#include "debug_supp.h"

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Classes
struct	hard_trap_info
struct	bp_entry

Macros
#define	GEKKO_MAX_BP   256
#define	SP_REGNUM   1
#define	PC_REGNUM   64
#define	BUFMAX   2048
#define	BPCODE   0x7d821008
#define	highhex(x)   hexchars [((x)>>4)&0xf]
#define	lowhex(x)   hexchars [(x)&0xf]
#define	UIP_LOG(m)

Functions
void	__breakinst ()
void	c_debug_handler (frame_context *ctx)
void	dbg_exceptionhandler ()
void	__exception_sethandler (u32 nExcept, void(*pHndl)(frame_context *))
void	__clr_iabr ()
void	__enable_iabr ()
void	__disable_iabr ()
void	__set_iabr (void *)
static __inline__ void	bp_init ()
static s32	hex (char ch)
static s32	hexToInt (char **ptr, s32 *ival)
static s32	computeSignal (s32 excpt)
static u32	insert_bp (void *mem)
static u32	remove_bp (void *mem)
static char	getdbgchar ()
static void	putdbgchar (char ch)
static void	putdbgstr (const char *str)
static void	putpacket (const char *buffer)
static void	getpacket (char *buffer)
static void	process_query (const char *inp, char *outp, s32 thread)
static s32	gdbstub_setthreadregs (s32 thread, frame_context *frame)
static s32	gdbstub_getthreadregs (s32 thread, frame_context *frame)
static void	gdbstub_report_exception (frame_context *frame, s32 thread)
void	_break (void)
	Stub function to insert the hardware break instruction. This function is used to enter the debug stub and to connect with the host. The developer is free to insert this function at any position in project's source code. More...
void	DEBUG_Init (s32 device_type, s32 channel_port)
	Performs the initialization of the debug stub. More...

Variables
static s32	dbg_active = 0
static s32	dbg_instep = 0
static s32	dbg_initialized = 0
static struct dbginterface *	current_device = NULL
static char	remcomInBuffer [BUFMAX]
static char	remcomOutBuffer [BUFMAX]
const char	hexchars [] ="0123456789abcdef"
static struct hard_trap_info	hard_trap_info []
static struct bp_entry	bp_entries [GEKKO_MAX_BP]
static struct bp_entry *	p_bpentries = NULL
static frame_context	current_thread_registers
const char *	tcp_localip
const char *	tcp_netmask
const char *	tcp_gateway
u8	__text_start []
u8	__data_start []
u8	__bss_start []
u8	__text_fstart []
u8	__data_fstart []
u8	__bss_fstart []

Macro Definition Documentation

BPCODE

#define BPCODE   0x7d821008

BUFMAX

#define BUFMAX   2048

GEKKO_MAX_BP

#define GEKKO_MAX_BP   256

highhex

#define highhex

(

x

)

hexchars [((x)>>4)&0xf]

lowhex

#define lowhex

(

x

)

hexchars [(x)&0xf]

PC_REGNUM

#define PC_REGNUM   64

SP_REGNUM

#define SP_REGNUM   1

UIP_LOG

#define UIP_LOG

(

m

)

Function Documentation

__breakinst()

void __breakinst

(

)

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__clr_iabr()

void __clr_iabr

(

)

__disable_iabr()

void __disable_iabr

(

)

__enable_iabr()

void __enable_iabr

(

)

__exception_sethandler()

void __exception_sethandler	(	u32	nExcept,
		void(*)(frame_context *)	pHndl
	)

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__set_iabr()

void __set_iabr

(

void *

)

_break()

void _break

(

void

)

Stub function to insert the hardware break instruction. This function is used to enter the debug stub and to connect with the host. The developer is free to insert this function at any position in project's source code.

Returns

none.

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bp_init()

static __inline__ void bp_init ( )

static

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c_debug_handler()

void c_debug_handler

(

frame_context *

ctx

)

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computeSignal()

static s32 computeSignal ( s32  excpt )

static

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dbg_exceptionhandler()

void dbg_exceptionhandler

(

)

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DEBUG_Init()

void DEBUG_Init	(	s32	device_type,
		s32	channel_port
	)

Performs the initialization of the debug stub.

Parameters

[in]	device_type	type of device to use. can be either USB or TCP.
[in]	channel_port	depending on the used device this can be either the EXI channel or the TCP port.

Returns

none.

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gdbstub_getthreadregs()

static s32 gdbstub_getthreadregs ( s32  thread, frame_context *  frame  )

static

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gdbstub_report_exception()

static void gdbstub_report_exception ( frame_context *  frame, s32  thread  )

static

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gdbstub_setthreadregs()

static s32 gdbstub_setthreadregs ( s32  thread, frame_context *  frame  )

static

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getdbgchar()

static char getdbgchar ( )

static

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getpacket()

static void getpacket ( char *  buffer )

static

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hex()

static s32 hex ( char  ch )

static

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hexToInt()

static s32 hexToInt ( char **  ptr, s32 *  ival  )

static

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insert_bp()

static u32 insert_bp ( void *  mem )

static

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process_query()

static void process_query ( const char *  inp, char *  outp, s32  thread  )

static

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putdbgchar()

static void putdbgchar ( char  ch )

static

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putdbgstr()

static void putdbgstr ( const char *  str )

static

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putpacket()

static void putpacket ( const char *  buffer )

static

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remove_bp()

static u32 remove_bp ( void *  mem )

static

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Variable Documentation

__bss_fstart

u8 __bss_fstart[]

__bss_start

u8 __bss_start[]

__data_fstart

u8 __data_fstart[]

__data_start

u8 __data_start[]

__text_fstart

u8 __text_fstart[]

__text_start

u8 __text_start[]

bp_entries

struct bp_entry bp_entries[GEKKO_MAX_BP]

static

current_device

struct dbginterface* current_device = NULL

static

current_thread_registers

frame_context current_thread_registers

static

dbg_active

s32 dbg_active = 0

static

dbg_initialized

s32 dbg_initialized = 0

static

dbg_instep

s32 dbg_instep = 0

static

hard_trap_info

struct hard_trap_info hard_trap_info[]

static

Initial value:

= {
    {EX_MACH_CHECK,SIGSEGV},
    {EX_DSI,SIGSEGV},       
    {EX_ISI,SIGBUS},        
    {EX_INT,SIGINT},        
    {EX_ALIGN,SIGBUS},      
    {EX_PRG,SIGTRAP},       
    {EX_FP,SIGFPE},         
    {EX_DEC,SIGALRM},       
    {EX_SYS_CALL,SIGSYS},   
    {EX_TRACE,SIGTRAP},     
    {0xB,SIGILL},           
    {EX_IABR,SIGTRAP},      
    {0xD,SIGFPE},           
    {0,0}                   
}

hexchars

const char hexchars[] ="0123456789abcdef"

p_bpentries

struct bp_entry* p_bpentries = NULL

static

remcomInBuffer

char remcomInBuffer[BUFMAX]

static

remcomOutBuffer

char remcomOutBuffer[BUFMAX]

static

tcp_gateway

const char* tcp_gateway

tcp_localip

const char* tcp_localip

tcp_netmask

const char* tcp_netmask