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[/] [openrisc/] [trunk/] [gnu-stable/] [newlib-1.18.0/] [libgloss/] [debug.h] - Blame information for rev 829

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1 207 jeremybenn
/*
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 * Copyright (c) 1995, 1996 Cygnus Support
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 *
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 * The authors hereby grant permission to use, copy, modify, distribute,
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 * and license this software and its documentation for any purpose, provided
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 * that existing copyright notices are retained in all copies and that this
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 * notice is included verbatim in any distributions. No written agreement,
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 * license, or royalty fee is required for any of the authorized uses.
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 * Modifications to this software may be copyrighted by their authors
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 * and need not follow the licensing terms described here, provided that
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 * the new terms are clearly indicated on the first page of each file where
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 * they apply.
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 */
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static const char hexchars[]="0123456789abcdef";
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typedef void (*exception_t)(int);   /* pointer to function with int parm */
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/*
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 * This is the default function handler to be called with all exceptions.
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 */
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extern exception_t default_trap_hook;
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/* this is used to make Unix style signale nukbers to an exception */
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struct trap_info
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{
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  unsigned char tt;             /* exception number */
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  unsigned char signo;          /* corresponding signal number */
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};
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/*
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 * prototypes for the functions in debug.c. As these'll only be used with GCC,
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 * we don't worry about no stinkin K&R comilers.
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 */
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extern void exception_handler (int, unsigned long);
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extern unsigned char *mem2hex(unsigned char *, unsigned char *, int, int);
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extern unsigned char *hex2mem(unsigned char *, unsigned char *, int, int);
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extern void getpacket(unsigned char *);
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extern void putpacket(unsigned char *);
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extern char *make_return_packet(int);
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extern void set_debug_traps();
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extern int computeSignal(int);
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extern char digit2hex(int);
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extern int hex2digit(int);
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extern void debuglogs(int level, char *msg);
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extern int hex2int();
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extern char *int2hex(int);
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extern void gdb_event_loop(int, unsigned long *);
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extern char *gdb_read_registers();              /* g - read registers */
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extern char *gdb_write_registers(char *);       /* G - write registers */
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extern char *gdb_read_memory(long, int);        /* m - read memory */
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extern char *gdb_write_memory(long, int, char *);/* M write memory */
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extern char *gdb_continue(int, long );          /* c - continue */
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extern char *gdb_step(int, long);               /* s - step instruction(s) */
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extern char *gdb_kill();                        /* k - kill program */
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extern char *gdb_last_signal();                 /* ? - last signal */
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extern char *gdb_baudrate(int);                 /* b - change baud rate */
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extern char *gdb_dump_state();                  /* T - dump state */
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extern char *gdb_set_thread(int, int);          /* H - set thread */
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extern char *gdb_detach();                      /* D - detach */
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extern char *gdb_read_reg(int);                 /* p - read one register */
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extern char *gdb_write_reg(int, long);          /* P - write one register */
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extern char *gdb_exited();                      /* W - process exited */
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extern char *gdb_terminated();                  /* X - process terminated */
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extern char *gdb_hex();                         /* O - hex encoding */
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extern char *gdb_thread_alive(int);             /* A - tread alive request */
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extern char *gdb_extended();                    /* ! - extended protocol */
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extern char *gdb_debug();                       /* d - toggle stub diagnostics */
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extern char *gdb_toggle();                      /* unsupported, toggle stub on/off */
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extern char *gdb_reset();                       /* r - reset target */
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extern char *gdb_search(long, long, long);      /* t - search backwards */
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extern char *gdb_query(char *);                 /* q - general query */
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extern char *gdb_set(char *);                   /* Q - set value */
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/*
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 * indicate to caller of mem2hex or hex2mem that there has been an error.
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 * 0 means ok, 1 means error
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 */
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extern volatile int mem_err;
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/*
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 * indicate whether the debug vectors have been initialized
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 * 0 means not yet, 1 means yep, it's ready.
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 */
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extern int initialized;
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/*
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 * 1 means print debugging messages from the target, 0 means be quiet.
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 */
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extern int remote_debug;
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/*
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 * Set up the command processing required for GDB
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 */
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struct gdb_ops {
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  /*
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   * these functions are the most minimal working subset top get full
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   * functionality for remote debugging
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   */
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  char  *(*gdb_read_registers);                 /* g - read registers */
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  char  *(*gdb_write_registers)(char *);        /* G - write registers */
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  char  *(*gdb_read_memory)(long, int);         /* m - read memory */
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  char  *(*gdb_write_memory)(long, int, char *);/* M write memory */
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  char  *(*gdb_continue)(int, long );           /* c - continue */
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  char  *(*gdb_step)(int, long);                /* s - step instruction(s) */
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  char  *(*gdb_kill);                           /* k - kill program */
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  char  *(*gdb_last_signal);                    /* ? - last signal */
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  char  *(*gdb_baudrate)(int);                  /* b - change baud rate */
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  char  *(*gdb_dump_state);                     /* T - dump state */
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  /*
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   * these functions are for a more sophisticated target, typically
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   * running a simple RTOS.
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   */
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  char  *(*gdb_set_thread)(int, int);           /* H - set thread */
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  char  *(*gdb_detach);                         /* D - detach */
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  char  *(*gdb_read_reg)(int);                  /* p - read one register */
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  char  *(*gdb_write_reg)(int, long);           /* P - write one register */
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  char  *(*gdb_exited);                         /* W - process exited */
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  char  *(*gdb_terminated);                     /* X - process terminated */
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  char  *(*gdb_hex);                            /* O - hex encoding */
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  char  *(*gdb_thread_alive)(int);              /* A - tread alive request */
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                                                /* FIXME: not standard yet */
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  char  *(*gdb_extended);                       /* ! - extended protocol */
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  char  *(*gdb_debug);                          /* d - toggle stub diagnostics */
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  char  *(*gdb_toggle);                         /* unsupported, toggle stub on/off */
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  char  *(*gdb_reset);                          /* r - reset target */
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  char  *(*gdb_search)(long, long, long);       /* t - search backwards */
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  char  *(*gdb_query)(char *);                  /* q - general query */
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  char  *(*gdb_set)(long);                      /* Q - set value */
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};
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/*
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 * BUFMAX defines the maximum number of characters in inbound/outbound buffers
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 * at least NUMREGBYTES*2 are needed for register packets
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 */
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#define BUFMAX 2048
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extern char packet_in_buf[BUFMAX];
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extern char packet_out_buf[BUFMAX];
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extern int  packet_index;
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#define DEBUG(x, y)             debuglog(x, y);
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#define set_debug_level(x)      remote_debug = x;
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#define OK 0
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#define ERROR -1
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#define ENN(x) "x"
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#define MAY_FAULT 1
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#define NO_FAULT 0

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