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/projects/cubeos/src_current/libc/debug.c File Reference

#include "debug.h"
#include <signal.h>
#include <kio.h>

Include dependency graph for debug.c:

Go to the source code of this file.

Functions
void	set_mem_fault_trap ()
void	debuglog (int level, char *msg)
	print debug messages. More...
int	hex2digit (int digit)
	converts an ascii hex digit to a number. More...
char	digit2hex (int digit)
	convert number NIB to a hex digit. More...
unsigned char *	mem2hex (unsigned char *mem, unsigned char *buf, int count, int may_fault)
	converts a memory block to hex and stores it in buf. More...
unsigned char *	hex2mem (unsigned char *buf, unsigned char *mem, int count, int may_fault)
	Convert the hex array pointed to by buf into binary to be placed in mem. More...
int	hex2int (char **ptr, int *intValue)
	while we find nice hex chars, build an int. More...
void	getpacket (unsigned char *buffer)
	Scan for the sequence $<data>#<checksum>. More...
void	putpacket (unsigned char *buffer)
	Send the packet in buffer. More...
void	gdb_event_loop (int sigval, unsigned long *registers)
	This is the gdb event loop waiting for GDB commands. More...
ingroup GDBDEBUG *int	computeSignal (int tt)
	Convert the hardware trap type code to a unix signal number. More...
void	set_debug_traps ()
char *	make_return_packet (int val)
	make a return packet. More...
char *	gdb_read_registers ()
	g - read registers. More...
char *	gdb_write_registers (char *regs)
	G - write registers. More...
char *	gdb_read_memory (long addr, int nbytes)
	m - read memory. More...
char *	gdb_write_memory (long addr, int nbytes, char *mem)
	M write memory. More...
char *	gdb_continue (int sig, long addr)
	c - continue at address. More...
char *	gdb_step (int sig, long addr)
	s - step instruction(s). More...
char *	gdb_kill ()
	k - kill program. More...
char *	gdb_last_signal (int val)
	? - last signal. More...
char *	gdb_baudrate (int baud)
	b - change baud rate. More...
char *	gdb_dump_state ()
	T - dump state. More...
char *	gdb_detach ()
	D - host requests a detach. More...
char *	gdb_set_thread (int cmd, int tid)
	H - set thread. More...
char *	gdb_read_reg (int reg)
	p - read one register. More...
char *	gdb_write_reg (int reg, long val)
	P - write one register. More...
char *	gdb_exited ()
	W - process exited. More...
char *	gdb_terminated ()
	X - process terminated. More...
char *	gdb_hex (char *str, int nbytes)
	O - hex encoding. More...
char *	gdb_thread_alive (int tid)
	A - tread alive request. More...
char *	gdb_extended ()
	! - extended protocol. More...
char *	gdb_debug ()
	d - toggle gdb stub diagnostics. More...
char *	gdb_toggle ()
	d - toggle gdb stub. More...
char *	gdb_reset ()
	r - reset target. More...
char *	gdb_search (long addr, long pat, long mask)
	t - search backwards. More...
char *	gdb_get_query (char *query)
	q - general get query. More...
char *	gdb_set (char *query)
	Q - general set query. More...
Variables
char	packet_in_buf [BUFMAX]
	packet buffer for debug.c. More...
char	packet_out_buf [BUFMAX]
	packet buffer for debug.c. More...
int	packet_index
	packet index for debug.c. More...
volatile int	mem_err = 0
int	remote_debug = 0
int	initialized = 0
trap_info	hard_trap_info []

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Detailed Description

This file contains a debug interface to a gdb connected to a terminal. It has never been tested since we have the BDM, but it came with the newlib and looked like a very good idea at that time.

Definition in file debug.c.

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Function Documentation

ingroup GDBDEBUG* int computeSignal (  int    tt )

Convert the hardware trap type code to a unix signal number. Definition at line 513 of file debug.c. References trap_info::signo, and trap_info::tt.

void set_debug_traps (    )

Definition at line 528 of file debug.c. References _LIBC_outbyte, DEBUG, default_trap_hook, exception_handler, initialized, print, trap_info::signo, and trap_info::tt.

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Variable Documentation

char packet_in_buf[BUFMAX]

packet buffer for debug.c. Definition at line 67 of file debug.c. Referenced by gdb_event_loop.

int packet_index

packet index for debug.c. Definition at line 69 of file debug.c.

char packet_out_buf[BUFMAX]

packet buffer for debug.c. Definition at line 68 of file debug.c. Referenced by gdb_event_loop, gdb_last_signal, gdb_read_memory, and make_return_packet.

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