GDB, the GNU debugger.
Copyright 1997 Free Software Foundation, Inc.
-This file is part of GDB.
+ This file is part of GDB.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "gdbcore.h"
#include "gdb_string.h"
#include <time.h>
+/* Type of function passed to bfd_map_over_sections. */
+
+typedef void (*section_map_func) (bfd * abfd, asection * sect, PTR obj);
+
/* Packet escape character used by Densan monitor. */
#define PESC 0xdc
/* External functions. */
-extern void report_transfer_performance PARAMS ((unsigned long,
- time_t, time_t));
+extern void report_transfer_performance (unsigned long, time_t, time_t);
/* Certain registers are "bitmapped", in that the monitor can only display
them or let the user modify them as a series of named bitfields.
This structure describes a field in a bitmapped register. */
struct bit_field
-{
- char *prefix; /* string appearing before the value */
- char *suffix; /* string appearing after the value */
- char *user_name; /* name used by human when entering field value */
- int length; /* number of bits in the field */
- int start; /* starting (least significant) bit number of field */
-};
-
+ {
+ char *prefix; /* string appearing before the value */
+ char *suffix; /* string appearing after the value */
+ char *user_name; /* name used by human when entering field value */
+ int length; /* number of bits in the field */
+ int start; /* starting (least significant) bit number of field */
+ };
+
/* Local functions for register manipulation. */
-static void r3900_supply_register PARAMS ((char *regname, int regnamelen,
- char *val, int vallen));
-static void fetch_bad_vaddr PARAMS ((void));
-static unsigned long fetch_fields PARAMS ((struct bit_field *bf));
-static void fetch_bitmapped_register PARAMS ((int regno,
- struct bit_field *bf));
-static void r3900_fetch_registers PARAMS ((int regno));
-static void store_bitmapped_register PARAMS ((int regno,
- struct bit_field *bf));
-static void r3900_store_registers PARAMS ((int regno));
+static void r3900_supply_register (char *regname, int regnamelen,
+ char *val, int vallen);
+static void fetch_bad_vaddr (void);
+static unsigned long fetch_fields (struct bit_field *bf);
+static void fetch_bitmapped_register (int regno, struct bit_field *bf);
+static void r3900_fetch_registers (int regno);
+static void store_bitmapped_register (int regno, struct bit_field *bf);
+static void r3900_store_registers (int regno);
/* Local functions for fast binary loading. */
-static void write_long PARAMS ((char *buf, long n));
-static void write_long_le PARAMS ((char *buf, long n));
-static int debug_readchar PARAMS ((int hex));
-static void debug_write PARAMS ((unsigned char *buf, int buflen));
-static void ignore_packet PARAMS ((void));
-static void send_packet PARAMS ((char type, unsigned char *buf, int buflen,
- int seq));
-static void process_read_request PARAMS ((unsigned char *buf, int buflen));
-static void count_section PARAMS ((bfd *abfd, asection *s,
- unsigned int *section_count));
-static void load_section PARAMS ((bfd *abfd, asection *s,
- unsigned int *data_count));
-static void r3900_load PARAMS ((char *filename, int from_tty));
+static void write_long (char *buf, long n);
+static void write_long_le (char *buf, long n);
+static int debug_readchar (int hex);
+static void debug_write (unsigned char *buf, int buflen);
+static void ignore_packet (void);
+static void send_packet (char type, unsigned char *buf, int buflen, int seq);
+static void process_read_request (unsigned char *buf, int buflen);
+static void count_section (bfd * abfd, asection * s,
+ unsigned int *section_count);
+static void load_section (bfd * abfd, asection * s, unsigned int *data_count);
+static void r3900_load (char *filename, int from_tty);
/* Miscellaneous local functions. */
-static void r3900_open PARAMS ((char *args, int from_tty));
+static void r3900_open (char *args, int from_tty);
/* Pointers to static functions in monitor.c for fetching and storing
format, and those that can't be modified at all. In those cases
we have to use our own functions to fetch and store their values. */
-static void (*orig_monitor_fetch_registers) PARAMS ((int regno));
-static void (*orig_monitor_store_registers) PARAMS ((int regno));
+static void (*orig_monitor_fetch_registers) (int regno);
+static void (*orig_monitor_store_registers) (int regno);
/* Pointer to static function in monitor. for loading programs.
We use this function for loading S-records via the serial link. */
-static void (*orig_monitor_load) PARAMS ((char *file, int from_tty));
+static void (*orig_monitor_load) (char *file, int from_tty);
/* This flag is set if a fast ethernet download should be used. */
static char *r3900_regnames[NUM_REGS] =
{
- "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
- "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
- "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
- "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
-
- "S", /* PS_REGNUM */
- "l", /* LO_REGNUM */
- "h", /* HI_REGNUM */
- "B", /* BADVADDR_REGNUM */
- "Pcause", /* CAUSE_REGNUM */
- "p" /* PC_REGNUM */
+ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
+ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
+ "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
+ "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
+
+ "S", /* PS_REGNUM */
+ "l", /* LO_REGNUM */
+ "h", /* HI_REGNUM */
+ "B", /* BADVADDR_REGNUM */
+ "Pcause", /* CAUSE_REGNUM */
+ "p" /* PC_REGNUM */
};
/* Table of register names produced by monitor's register dump command. */
static struct reg_entry
+ {
+ char *name;
+ int regno;
+ }
+reg_table[] =
{
- char *name;
- int regno;
-} reg_table[] =
-{
- { "r0_zero", 0 }, { "r1_at", 1 }, { "r2_v0", 2 }, { "r3_v1", 3 },
- { "r4_a0", 4 }, { "r5_a1", 5 }, { "r6_a2", 6 }, { "r7_a3", 7 },
- { "r8_t0", 8 }, { "r9_t1", 9 }, { "r10_t2", 10 }, { "r11_t3", 11 },
- { "r12_t4", 12 }, { "r13_t5", 13 }, { "r14_t6", 14 }, { "r15_t7", 15 },
- { "r16_s0", 16 }, { "r17_s1", 17 }, { "r18_s2", 18 }, { "r19_s3", 19 },
- { "r20_s4", 20 }, { "r21_s5", 21 }, { "r22_s6", 22 }, { "r23_s7", 23 },
- { "r24_t8", 24 }, { "r25_t9", 25 }, { "r26_k0", 26 }, { "r27_k1", 27 },
- { "r28_gp", 28 }, { "r29_sp", 29 }, { "r30_fp", 30 }, { "r31_ra", 31 },
- { "HI", HI_REGNUM },
- { "LO", LO_REGNUM },
- { "PC", PC_REGNUM },
- { "BadV", BADVADDR_REGNUM },
- { NULL, 0 }
+ {
+ "r0_zero", 0
+ }
+ ,
+ {
+ "r1_at", 1
+ }
+ ,
+ {
+ "r2_v0", 2
+ }
+ ,
+ {
+ "r3_v1", 3
+ }
+ ,
+ {
+ "r4_a0", 4
+ }
+ ,
+ {
+ "r5_a1", 5
+ }
+ ,
+ {
+ "r6_a2", 6
+ }
+ ,
+ {
+ "r7_a3", 7
+ }
+ ,
+ {
+ "r8_t0", 8
+ }
+ ,
+ {
+ "r9_t1", 9
+ }
+ ,
+ {
+ "r10_t2", 10
+ }
+ ,
+ {
+ "r11_t3", 11
+ }
+ ,
+ {
+ "r12_t4", 12
+ }
+ ,
+ {
+ "r13_t5", 13
+ }
+ ,
+ {
+ "r14_t6", 14
+ }
+ ,
+ {
+ "r15_t7", 15
+ }
+ ,
+ {
+ "r16_s0", 16
+ }
+ ,
+ {
+ "r17_s1", 17
+ }
+ ,
+ {
+ "r18_s2", 18
+ }
+ ,
+ {
+ "r19_s3", 19
+ }
+ ,
+ {
+ "r20_s4", 20
+ }
+ ,
+ {
+ "r21_s5", 21
+ }
+ ,
+ {
+ "r22_s6", 22
+ }
+ ,
+ {
+ "r23_s7", 23
+ }
+ ,
+ {
+ "r24_t8", 24
+ }
+ ,
+ {
+ "r25_t9", 25
+ }
+ ,
+ {
+ "r26_k0", 26
+ }
+ ,
+ {
+ "r27_k1", 27
+ }
+ ,
+ {
+ "r28_gp", 28
+ }
+ ,
+ {
+ "r29_sp", 29
+ }
+ ,
+ {
+ "r30_fp", 30
+ }
+ ,
+ {
+ "r31_ra", 31
+ }
+ ,
+ {
+ "HI", HI_REGNUM
+ }
+ ,
+ {
+ "LO", LO_REGNUM
+ }
+ ,
+ {
+ "PC", PC_REGNUM
+ }
+ ,
+ {
+ "BadV", BADVADDR_REGNUM
+ }
+ ,
+ {
+ NULL, 0
+ }
};
cache register that the monitor displays. Register fields that should
be ignored have a length of zero in the tables below. */
-static struct bit_field status_fields [] =
+static struct bit_field status_fields[] =
{
/* Status register portion */
- { "SR[<CU=", " ", "cu", 4, 28 },
- { "RE=", " ", "re", 1, 25 },
- { "BEV=", " ", "bev", 1, 22 },
- { "TS=", " ", "ts", 1, 21 },
- { "Nmi=", " ", "nmi", 1, 20 },
- { "INT=", " ", "int", 6, 10 },
- { "SW=", ">]", "sw", 2, 8 },
- { "[<KUO=", " ", "kuo", 1, 5 },
- { "IEO=", " ", "ieo", 1, 4 },
- { "KUP=", " ", "kup", 1, 3 },
- { "IEP=", " ", "iep", 1, 2 },
- { "KUC=", " ", "kuc", 1, 1 },
- { "IEC=", ">]", "iec", 1, 0 },
+ {"SR[<CU=", " ", "cu", 4, 28},
+ {"RE=", " ", "re", 1, 25},
+ {"BEV=", " ", "bev", 1, 22},
+ {"TS=", " ", "ts", 1, 21},
+ {"Nmi=", " ", "nmi", 1, 20},
+ {"INT=", " ", "int", 6, 10},
+ {"SW=", ">]", "sw", 2, 8},
+ {"[<KUO=", " ", "kuo", 1, 5},
+ {"IEO=", " ", "ieo", 1, 4},
+ {"KUP=", " ", "kup", 1, 3},
+ {"IEP=", " ", "iep", 1, 2},
+ {"KUC=", " ", "kuc", 1, 1},
+ {"IEC=", ">]", "iec", 1, 0},
/* Cache register portion (dummy for parsing only) */
- { "CR[<IalO="," ", "ialo", 0, 13 },
- { "DalO=", " ", "dalo", 0, 12 },
- { "IalP=", " ", "ialp", 0, 11 },
- { "DalP=", " ", "dalp", 0, 10 },
- { "IalC=", " ", "ialc", 0, 9 },
- { "DalC=", ">] ", "dalc", 0, 8 },
-
- { NULL, NULL, 0, 0 } /* end of table marker */
+ {"CR[<IalO=", " ", "ialo", 0, 13},
+ {"DalO=", " ", "dalo", 0, 12},
+ {"IalP=", " ", "ialp", 0, 11},
+ {"DalP=", " ", "dalp", 0, 10},
+ {"IalC=", " ", "ialc", 0, 9},
+ {"DalC=", ">] ", "dalc", 0, 8},
+
+ {NULL, NULL, 0, 0} /* end of table marker */
};
-static struct bit_field cache_fields [] =
+#if 0 /* FIXME: Enable when we add support for modifying cache register. */
+static struct bit_field cache_fields[] =
{
/* Status register portion (dummy for parsing only) */
- { "SR[<CU=", " ", "cu", 0, 28 },
- { "RE=", " ", "re", 0, 25 },
- { "BEV=", " ", "bev", 0, 22 },
- { "TS=", " ", "ts", 0, 21 },
- { "Nmi=", " ", "nmi", 0, 20 },
- { "INT=", " ", "int", 0, 10 },
- { "SW=", ">]", "sw", 0, 8 },
- { "[<KUO=", " ", "kuo", 0, 5 },
- { "IEO=", " ", "ieo", 0, 4 },
- { "KUP=", " ", "kup", 0, 3 },
- { "IEP=", " ", "iep", 0, 2 },
- { "KUC=", " ", "kuc", 0, 1 },
- { "IEC=", ">]", "iec", 0, 0 },
+ {"SR[<CU=", " ", "cu", 0, 28},
+ {"RE=", " ", "re", 0, 25},
+ {"BEV=", " ", "bev", 0, 22},
+ {"TS=", " ", "ts", 0, 21},
+ {"Nmi=", " ", "nmi", 0, 20},
+ {"INT=", " ", "int", 0, 10},
+ {"SW=", ">]", "sw", 0, 8},
+ {"[<KUO=", " ", "kuo", 0, 5},
+ {"IEO=", " ", "ieo", 0, 4},
+ {"KUP=", " ", "kup", 0, 3},
+ {"IEP=", " ", "iep", 0, 2},
+ {"KUC=", " ", "kuc", 0, 1},
+ {"IEC=", ">]", "iec", 0, 0},
/* Cache register portion */
- { "CR[<IalO="," ", "ialo", 1, 13 },
- { "DalO=", " ", "dalo", 1, 12 },
- { "IalP=", " ", "ialp", 1, 11 },
- { "DalP=", " ", "dalp", 1, 10 },
- { "IalC=", " ", "ialc", 1, 9 },
- { "DalC=", ">] ", "dalc", 1, 8 },
-
- { NULL, NULL, NULL, 0, 0 } /* end of table marker */
+ {"CR[<IalO=", " ", "ialo", 1, 13},
+ {"DalO=", " ", "dalo", 1, 12},
+ {"IalP=", " ", "ialp", 1, 11},
+ {"DalP=", " ", "dalp", 1, 10},
+ {"IalC=", " ", "ialc", 1, 9},
+ {"DalC=", ">] ", "dalc", 1, 8},
+
+ {NULL, NULL, NULL, 0, 0} /* end of table marker */
};
+#endif
-static struct bit_field cause_fields[] =
+
+static struct bit_field cause_fields[] =
{
- { "<BD=", " ", "bd", 1, 31 },
- { "CE=", " ", "ce", 2, 28 },
- { "IP=", " ", "ip", 6, 10 },
- { "SW=", " ", "sw", 2, 8 },
- { "EC=", ">]" , "ec", 5, 2 },
+ {"<BD=", " ", "bd", 1, 31},
+ {"CE=", " ", "ce", 2, 28},
+ {"IP=", " ", "ip", 6, 10},
+ {"SW=", " ", "sw", 2, 8},
+ {"EC=", ">]", "ec", 5, 2},
- { NULL, NULL, NULL, 0, 0 } /* end of table marker */
+ {NULL, NULL, NULL, 0, 0} /* end of table marker */
};
/* The monitor prints register values in the form
- regname = xxxx xxxx
+ regname = xxxx xxxx
We look up the register name in a table, and remove the embedded space in
the hex value before passing it to monitor_supply_register. */
static void
-r3900_supply_register (regname, regnamelen, val, vallen)
- char *regname;
- int regnamelen;
- char *val;
- int vallen;
+r3900_supply_register (char *regname, int regnamelen, char *val, int vallen)
{
int regno = -1;
int i;
monitor_supply_register (regno, valbuf);
}
+
/* Fetch the BadVaddr register. Unlike the other registers, this
one can't be modified, and the monitor won't even prompt to let
you modify it. */
static void
-fetch_bad_vaddr()
+fetch_bad_vaddr (void)
{
char buf[20];
monitor_printf ("xB\r");
monitor_expect ("BadV=", NULL, 0);
- monitor_expect_prompt (buf, sizeof(buf));
+ monitor_expect_prompt (buf, sizeof (buf));
monitor_supply_register (BADVADDR_REGNUM, buf);
}
-
+
/* Read a series of bit fields from the monitor, and return their
combined binary value. */
static unsigned long
-fetch_fields (bf)
- struct bit_field *bf;
+fetch_fields (struct bit_field *bf)
{
char buf[20];
unsigned long val = 0;
unsigned long bits;
- for ( ; bf->prefix != NULL; bf++)
+ for (; bf->prefix != NULL; bf++)
{
- monitor_expect (bf->prefix, NULL, 0); /* get prefix */
+ monitor_expect (bf->prefix, NULL, 0); /* get prefix */
monitor_expect (bf->suffix, buf, sizeof (buf)); /* hex value, suffix */
if (bf->length != 0)
- {
+ {
bits = strtoul (buf, NULL, 16); /* get field value */
bits &= ((1 << bf->length) - 1); /* mask out useless bits */
- val |= bits << bf->start; /* insert into register */
+ val |= bits << bf->start; /* insert into register */
}
-
+
}
return val;
}
+
static void
-fetch_bitmapped_register (regno, bf)
- int regno;
- struct bit_field *bf;
+fetch_bitmapped_register (int regno, struct bit_field *bf)
{
unsigned long val;
unsigned char regbuf[MAX_REGISTER_RAW_SIZE];
}
+
/* Fetch all registers (if regno is -1), or one register from the
monitor. For most registers, we can use the generic monitor_
monitor_fetch_registers function. But others are displayed in
- very unusual fashion and must be handled specially. */
+ a very unusual fashion by the monitor, and must be handled specially. */
static void
-r3900_fetch_registers (regno)
- int regno;
+r3900_fetch_registers (int regno)
{
switch (regno)
{
/* Write the new value of the bitmapped register to the monitor. */
static void
-store_bitmapped_register (regno, bf)
- int regno;
- struct bit_field *bf;
+store_bitmapped_register (int regno, struct bit_field *bf)
{
unsigned long oldval, newval;
newval = read_register (regno);
/* To save time, write just the fields that have changed. */
- for ( ; bf->prefix != NULL; bf++)
+ for (; bf->prefix != NULL; bf++)
{
if (bf->length != 0)
- {
+ {
unsigned long oldbits, newbits, mask;
mask = (1 << bf->length) - 1;
oldbits = (oldval >> bf->start) & mask;
newbits = (newval >> bf->start) & mask;
if (oldbits != newbits)
- monitor_printf ("%s %x ", bf->user_name, newbits);
+ monitor_printf ("%s %lx ", bf->user_name, newbits);
}
}
monitor_expect_prompt (NULL, 0);
}
+
static void
-r3900_store_registers (regno)
- int regno;
+r3900_store_registers (int regno)
{
switch (regno)
{
/* Write a 4-byte integer to the buffer in big-endian order. */
static void
-write_long (buf, n)
- char *buf;
- long n;
+write_long (char *buf, long n)
{
buf[0] = (n >> 24) & 0xff;
buf[1] = (n >> 16) & 0xff;
/* Write a 4-byte integer to the buffer in little-endian order. */
static void
-write_long_le (buf, n)
- char *buf;
- long n;
+write_long_le (char *buf, long n)
{
buf[0] = n & 0xff;
buf[1] = (n >> 8) & 0xff;
/* Read a character from the monitor. If remote debugging is on,
print the received character. If HEX is non-zero, print the
- character in hexadecimal; otherwise, print it in ascii. */
+ character in hexadecimal; otherwise, print it in ASCII. */
static int
-debug_readchar (hex)
- int hex;
+debug_readchar (int hex)
{
- char buf [10];
+ char buf[10];
int c = monitor_readchar ();
if (remote_debug > 0)
sprintf (buf, "[%02x]", c & 0xff);
else if (c == '\0')
strcpy (buf, "\\0");
- else
+ else
{
buf[0] = c;
buf[1] = '\0';
print the sent buffer in hex. */
static void
-debug_write (buf, buflen)
- unsigned char *buf;
- int buflen;
+debug_write (unsigned char *buf, int buflen)
{
char s[10];
when its console is in "communications interface" mode. A packet
is of this form:
- start of packet flag (one byte: 0xdc)
- packet type (one byte)
- length (low byte)
- length (high byte)
- data (length bytes)
-*/
+ start of packet flag (one byte: 0xdc)
+ packet type (one byte)
+ length (low byte)
+ length (high byte)
+ data (length bytes)
+
+ The last two bytes of the data field are a checksum, but we don't
+ bother to verify it.
+ */
static void
-ignore_packet ()
+ignore_packet (void)
{
int c;
- int len;
+ int len;
/* Ignore lots of trash (messages about section addresses, for example)
until we see the start of a packet. */
error ("Packet header byte not found; %02x seen instead.", c);
/* Read the packet type and length. */
- c = debug_readchar (1); /* type */
+ c = debug_readchar (1); /* type */
- c = debug_readchar (1); /* low byte of length */
+ c = debug_readchar (1); /* low byte of length */
len = c & 0xff;
- c = debug_readchar (1); /* high byte of length */
+ c = debug_readchar (1); /* high byte of length */
len += (c & 0xff) << 8;
/* Ignore the rest of the packet. */
}
-/* Send a packet to the monitor. */
+/* Encapsulate some data into a packet and send it to the monitor.
+
+ The 'p' packet is a special case. This is a packet we send
+ in response to a read ('r') packet from the monitor. This function
+ appends a one-byte sequence number to the data field of such a packet.
+ */
static void
-send_packet (type, buf, buflen, seq)
- char type;
- unsigned char *buf;
- int buflen, seq;
+send_packet (char type, unsigned char *buf, int buflen, int seq)
{
unsigned char hdr[4];
int len = buflen;
sum += tmp << 8;
}
if (type == 'p')
- {
+ {
if (buflen & 1)
sum += (seq & 0xff);
else
}
sum = (sum & 0xffff) + ((sum >> 16) & 0xffff);
sum += (sum >> 16) & 1;
- sum = ~sum;
+ sum = ~sum;
hdr[0] = (sum >> 8) & 0xff;
hdr[1] = sum & 0xff;
/* Respond to an expected read request from the monitor by sending
- data in chunks. Handle all acknowledgements and handshaking packets. */
+ data in chunks. Handle all acknowledgements and handshaking packets.
+
+ The monitor expects a response consisting of a one or more 'p' packets,
+ each followed by a portion of the data requested. The 'p' packet
+ contains only a four-byte integer, the value of which is the number
+ of bytes of data we are about to send. Following the 'p' packet,
+ the monitor expects the data bytes themselves in raw, unpacketized,
+ form, without even a checksum.
+ */
static void
-process_read_request (buf, buflen)
- unsigned char *buf;
- int buflen;
+process_read_request (unsigned char *buf, int buflen)
{
unsigned char len[4];
int i, chunk;
unsigned char seq;
- /* Discard the read request. We have to hope it's for
- the exact number of bytes we want to send. */
+ /* Discard the read request. FIXME: we have to hope it's for
+ the exact number of bytes we want to send; should check for this. */
ignore_packet ();
for (i = chunk = 0, seq = 0; i < buflen; i += chunk, seq++)
{
- /* Don't send more than 256 bytes at a time. */
+ /* Don't send more than MAXPSIZE bytes at a time. */
chunk = buflen - i;
if (chunk > MAXPSIZE)
chunk = MAXPSIZE;
/* Count loadable sections (helper function for r3900_load). */
static void
-count_section (abfd, s, section_count)
- bfd *abfd;
- asection *s;
- unsigned int *section_count;
+count_section (bfd *abfd, asection *s, unsigned int *section_count)
{
if (s->flags & SEC_LOAD && bfd_section_size (abfd, s) != 0)
(*section_count)++;
packets containing read requests, but rather than respond
to them in an general way, we expect them to following
a certain pattern.
-
+
For example, we know that the monitor will start loading by
issuing an 8-byte read request for the binary file header.
We know this is coming and ignore the actual contents
of the read request packet.
-*/
+ */
static void
-load_section (abfd, s, data_count)
- bfd *abfd;
- asection *s;
- unsigned int *data_count;
+load_section (bfd *abfd, asection *s, unsigned int *data_count)
{
if (s->flags & SEC_LOAD)
{
bfd_size_type section_size = bfd_section_size (abfd, s);
- bfd_vma section_base = bfd_section_lma (abfd, s);
+ bfd_vma section_base = bfd_section_lma (abfd, s);
unsigned char *buffer;
unsigned char header[8];
/* Don't output zero-length sections. */
if (section_size == 0)
- return;
+ return;
if (data_count)
*data_count += section_size;
/* Print some fluff about the section being loaded. */
printf_filtered ("Loading section %s, size 0x%lx lma ",
- bfd_section_name (abfd, s), (long)section_size);
+ bfd_section_name (abfd, s), (long) section_size);
print_address_numeric (section_base, 1, gdb_stdout);
printf_filtered ("\n");
gdb_flush (gdb_stdout);
/* Write the section header (location and size). */
- write_long (&header[0], (long)section_base);
- write_long (&header[4], (long)section_size);
+ write_long (&header[0], (long) section_base);
+ write_long (&header[4], (long) section_size);
process_read_request (header, sizeof (header));
/* Read the section contents into a buffer, write it out,
buffer = (unsigned char *) xmalloc (section_size);
bfd_get_section_contents (abfd, s, buffer, 0, section_size);
process_read_request (buffer, section_size);
- free (buffer);
- }
+ xfree (buffer);
+ }
}
we can use the "Rm" command to do a fast binary load. The format
of the download data is:
- number of sections (4 bytes)
- starting address (4 bytes)
- repeat for each section:
- location address (4 bytes)
- section size (4 bytes)
- binary data
+ number of sections (4 bytes)
+ starting address (4 bytes)
+ repeat for each section:
+ location address (4 bytes)
+ section size (4 bytes)
+ binary data
The 4-byte fields are all in big-endian order.
*/
static void
-r3900_load (filename, from_tty)
- char *filename;
- int from_tty;
+r3900_load (char *filename, int from_tty)
{
bfd *abfd;
unsigned int data_count = 0;
monitor_printf ("Rm\r");
ignore_packet ();
send_packet ('a', "", 0, 0);
-
+
/* Output the fast load header (number of sections and starting address). */
- bfd_map_over_sections ((bfd *) abfd, count_section, §ion_count);
- write_long (&buffer[0], (long)section_count);
+ bfd_map_over_sections ((bfd *) abfd, (section_map_func) count_section,
+ §ion_count);
+ write_long (&buffer[0], (long) section_count);
if (exec_bfd)
- write_long (&buffer[4], (long)bfd_get_start_address (exec_bfd));
+ write_long (&buffer[4], (long) bfd_get_start_address (exec_bfd));
else
write_long (&buffer[4], 0);
process_read_request (buffer, sizeof (buffer));
/* Output the section data. */
start_time = time (NULL);
- bfd_map_over_sections (abfd, load_section, &data_count);
+ bfd_map_over_sections (abfd, (section_map_func) load_section, &data_count);
end_time = time (NULL);
/* Acknowledge the close packet and put the monitor back into
monitor_printf ("vconsx\r");
monitor_expect_prompt (NULL, 0);
- /* Print download performance information. */
- printf_filtered ("Start address 0x%lx\n", (long)bfd_get_start_address (abfd));
+ /* Print start address and download performance information. */
+ printf_filtered ("Start address 0x%lx\n", (long) bfd_get_start_address (abfd));
report_transfer_performance (data_count, start_time, end_time);
/* Finally, make the PC point at the start address */
if (exec_bfd)
write_pc (bfd_get_start_address (exec_bfd));
- inferior_pid = 0; /* No process now */
+ inferior_pid = 0; /* No process now */
/* This is necessary because many things were based on the PC at the
time that we attached to the monitor, which is no longer valid
Another way to do this might be to call normal_stop, except that
the stack may not be valid, and things would get horribly
confused... */
-
clear_symtab_users ();
}
-static struct target_ops r3900_ops;
-
/* Commands to send to the monitor when first connecting:
- * The bare carriage return forces a prompt from the monitor
- (monitor doesn't prompt after a reset).
- * The "vconsx" switches the monitor back to interactive mode
- in case an aborted download had left it in packet mode.
- * The "Xtr" command causes subsequent "t" (trace) commands to display
- the general registers only.
- * The "Xxr" command does the same thing for the "x" (examine
- registers) command.
- * The "bx" command clears all breakpoints.
-*/
-
-static char *r3900_inits[] = {"\r", "vconsx\r", "Xtr\r", "Xxr\r", "bx\r", NULL};
-static char *dummy_inits[] = { NULL };
+ * The bare carriage return forces a prompt from the monitor
+ (monitor doesn't prompt immediately after a reset).
+ * The "vconsx" switches the monitor back to interactive mode
+ in case an aborted download had left it in packet mode.
+ * The "Xtr" command causes subsequent "t" (trace) commands to display
+ the general registers only.
+ * The "Xxr" command does the same thing for the "x" (examine
+ registers) command.
+ * The "bx" command clears all breakpoints.
+ */
+static char *r3900_inits[] =
+{"\r", "vconsx\r", "Xtr\r", "Xxr\r", "bx\r", NULL};
+static char *dummy_inits[] =
+{NULL};
+
+static struct target_ops r3900_ops;
static struct monitor_ops r3900_cmds;
static void
-r3900_open (args, from_tty)
- char *args;
- int from_tty;
+r3900_open (char *args, int from_tty)
{
char buf[64];
int i;
ethernet = 0;
monitor_printf ("v\r");
if (monitor_expect ("console device :", NULL, 0) != -1)
- if (monitor_expect ("\n", buf, sizeof (buf)) != -1)
- if (strstr (buf, "ethernet") != NULL)
- ethernet = 1;
+ if (monitor_expect ("\n", buf, sizeof (buf)) != -1)
+ if (strstr (buf, "ethernet") != NULL)
+ ethernet = 1;
monitor_expect_prompt (NULL, 0);
}
void
-_initialize_r3900_rom ()
+_initialize_r3900_rom (void)
{
r3900_cmds.flags = MO_NO_ECHO_ON_OPEN |
- MO_ADDR_BITS_REMOVE |
- MO_CLR_BREAK_USES_ADDR |
- MO_PRINT_PROGRAM_OUTPUT;
+ MO_ADDR_BITS_REMOVE |
+ MO_CLR_BREAK_USES_ADDR |
+ MO_GETMEM_READ_SINGLE |
+ MO_PRINT_PROGRAM_OUTPUT;
r3900_cmds.init = dummy_inits;
r3900_cmds.cont = "g\r";
r3900_cmds.step = "t\r";
- r3900_cmds.set_break = "b %Lx\r"; /* COREADDR */
- r3900_cmds.clr_break = "b %Lx,0\r"; /* COREADDR */
- r3900_cmds.fill = "fx %Lx s %x %x\r"; /* COREADDR, len, val */
+ r3900_cmds.set_break = "b %A\r"; /* COREADDR */
+ r3900_cmds.clr_break = "b %A,0\r"; /* COREADDR */
+ r3900_cmds.fill = "fx %A s %x %x\r"; /* COREADDR, len, val */
- r3900_cmds.setmem.cmdb = "sx %Lx %x\r"; /* COREADDR, val */
- r3900_cmds.setmem.cmdw = "sh %Lx %x\r"; /* COREADDR, val */
- r3900_cmds.setmem.cmdl = "sw %Lx %x\r"; /* COREADDR, val */
+ r3900_cmds.setmem.cmdb = "sx %A %x\r"; /* COREADDR, val */
+ r3900_cmds.setmem.cmdw = "sh %A %x\r"; /* COREADDR, val */
+ r3900_cmds.setmem.cmdl = "sw %A %x\r"; /* COREADDR, val */
- r3900_cmds.getmem.cmdb = "dx %Lx s %x\r"; /* COREADDR, len */
+ r3900_cmds.getmem.cmdb = "sx %A\r"; /* COREADDR */
+ r3900_cmds.getmem.cmdw = "sh %A\r"; /* COREADDR */
+ r3900_cmds.getmem.cmdl = "sw %A\r"; /* COREADDR */
r3900_cmds.getmem.resp_delim = " : ";
+ r3900_cmds.getmem.term = " ";
+ r3900_cmds.getmem.term_cmd = ".\r";
- r3900_cmds.setreg.cmd = "x%s %x\r"; /* regname, val */
+ r3900_cmds.setreg.cmd = "x%s %x\r"; /* regname, val */
- r3900_cmds.getreg.cmd = "x%s\r"; /* regname */
+ r3900_cmds.getreg.cmd = "x%s\r"; /* regname */
r3900_cmds.getreg.resp_delim = "=";
r3900_cmds.getreg.term = " ";
r3900_cmds.getreg.term_cmd = ".\r";
r3900_cmds.dump_registers = "x\r";
r3900_cmds.register_pattern =
- "\\([a-zA-Z0-9_]+\\) *=\\([0-9a-f]+ [0-9a-f]+\\b\\)";
+ "\\([a-zA-Z0-9_]+\\) *=\\([0-9a-f]+ [0-9a-f]+\\b\\)";
r3900_cmds.supply_register = r3900_supply_register;
/* S-record download, via "keyboard port". */
r3900_cmds.load = "r0\r";