--- /dev/null
+/* Definitions and macros for support of AMD's remote debugger, MiniMON.
+ Copyright (C) 1990, 1991 Free Software Foundation, Inc.
+
+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 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/*
+ * Some basic types. FIXME, this should be done by declaring bitfield
+ * sizes in the structs. We can't portably depend on a "long int" being
+ * 32 bits, etc.
+ */
+typedef long int INT32; /* 32 bit integer */
+typedef unsigned long int UINT32; /* 32 bit integer (unsigned) */
+typedef unsigned long int ADDR32; /* 32 bit address */
+typedef unsigned long int INST32; /* 32 bit instruction */
+typedef long int BOOLEAN; /* Boolean value (32 bit) */
+typedef unsigned char BYTE; /* byte (8 bit) */
+typedef short int INT16; /* 16 bit integer */
+typedef unsigned short int UINT16; /* 16 bit integer (unsigned) */
+
+/****************************************************************************/
+/************************* Message Information ******************************/
+/****************************************************************************/
+
+/*
+ * Error codes
+ */
+
+/* General errors */
+#define EMUSAGE 1 /* Bad args / flags */
+#define EMFAIL 2 /* Unrecoverable error */
+#define EMBADADDR 3 /* Illegal address */
+#define EMBADREG 4 /* Illegal register */
+#define EMSYNTAX 5 /* Illegal command syntax */
+#define EMACCESS 6 /* Could not access memory */
+#define EMALLOC 7 /* Could not allocate memory */
+#define EMTARGET 8 /* Unknown target type */
+#define EMHINIT 9 /* Could not initialize host */
+#define EMCOMM 10 /* Could not open communication channel */
+
+/* Message errors */
+#define EMBADMSG 11 /* Unknown message type */
+#define EMMSG2BIG 12 /* Message to large for buffer */
+#define EMNOSEND 13 /* Could not send message */
+#define EMNORECV 14 /* Could not receive message */
+
+#define EMRESET 15 /* Could not RESET target */
+#define EMCONFIG 16 /* Could not get target CONFIG */
+#define EMSTATUS 17 /* Could not get target STATUS */
+#define EMREAD 18 /* Could not READ target memory */
+#define EMWRITE 19 /* Could not WRITE target memory */
+#define EMBKPTSET 20 /* Could not set breakpoint */
+#define EMBKPTRM 21 /* Could not remove breakpoint */
+#define EMBKPTSTAT 22 /* Could not get breakpoint status */
+#define EMBKPTNONE 23 /* All breakpoints in use */
+#define EMBKPTUSED 24 /* Breakpoints already in use */
+#define EMCOPY 25 /* Could not COPY target memory */
+#define EMFILL 26 /* Could not FILL target memory */
+#define EMINIT 27 /* Could not initialize target memory */
+#define EMGO 28 /* Could not start execution */
+#define EMSTEP 29 /* Could not single step */
+#define EMBREAK 30 /* Could not BREAK */
+#define EMHIF 31 /* Could not perform HIF service */
+#define EMCHANNEL0 32 /* Could not read CHANNEL0 */
+#define EMCHANNEL1 33 /* Could not write CHANNEL1 */
+
+/* COFF file loader errors */
+#define EMOPEN 34 /* Could not open COFF file */
+#define EMHDR 35 /* Could not read COFF header */
+#define EMMAGIC 36 /* Bad magic number */
+#define EMAOUT 37 /* Could not read COFF a.out header */
+#define EMSCNHDR 38 /* Could not read COFF section header */
+#define EMSCN 39 /* Could not read COFF section */
+#define EMCLOSE 40 /* Could not close COFF file */
+
+/* Log file errors */
+#define EMLOGOPEN 41 /* Could not open log file */
+#define EMLOGREAD 42 /* Could not read log file */
+#define EMLOGWRITE 43 /* Could not write to log file */
+#define EMLOGCLOSE 44 /* Could not close log file */
+
+/* Command file errors */
+#define EMCMDOPEN 45 /* Could not open command file */
+#define EMCMDREAD 46 /* Could not read command file */
+#define EMCMDWRITE 47 /* Could not write to command file */
+#define EMCMDCLOSE 48 /* Could not close comand file */
+
+#define EMTIMEOUT 49 /* Host timed out waiting for a message */
+#define EMCOMMTYPE 50 /* A '-t' flag must be specified */
+#define EMCOMMERR 51 /* Communication error */
+#define EMBAUD 52 /* Invalid baud rate specified */
+/*
+ * Memory Spaces
+ */
+#define LOCAL_REG 0 /* Local processor register */
+#define GLOBAL_REG 1 /* Global processor register */
+#define SPECIAL_REG 2 /* Special processor register */
+#define TLB_REG 3 /* Translation Lookaside Buffer */
+#define COPROC_REG 4 /* Coprocessor register */
+#define I_MEM 5 /* Instruction Memory */
+#define D_MEM 6 /* Data Memory */
+#define I_ROM 7 /* Instruction ROM */
+#define D_ROM 8 /* Data ROM */
+#define I_O 9 /* Input/Output */
+#define I_CACHE 10 /* Instruction Cache */
+#define D_CACHE 11 /* Data Cache */
+
+/* To supress warnings for zero length array definitions */
+#define DUMMY 1
+
+/*
+** Host to target definitions
+*/
+
+#define RESET 0
+#define CONFIG_REQ 1
+#define STATUS_REQ 2
+#define READ_REQ 3
+#define WRITE_REQ 4
+#define BKPT_SET 5
+#define BKPT_RM 6
+#define BKPT_STAT 7
+#define COPY 8
+#define FILL 9
+#define INIT 10
+#define GO 11
+#define STEP 12
+#define BREAK 13
+
+#define HIF_CALL_RTN 64
+#define CHANNEL0 65
+#define CHANNEL1_ACK 66
+
+
+/*
+** Target to host definitions
+*/
+
+#define RESET_ACK 32
+#define CONFIG 33
+#define STATUS 34
+#define READ_ACK 35
+#define WRITE_ACK 36
+#define BKPT_SET_ACK 37
+#define BKPT_RM_ACK 38
+#define BKPT_STAT_ACK 39
+#define COPY_ACK 40
+#define FILL_ACK 41
+#define INIT_ACK 42
+#define HALT 43
+
+#define ERROR 63
+
+#define HIF_CALL 96
+#define CHANNEL0_ACK 97
+#define CHANNEL1 98
+
+
+/* A "generic" message */
+struct generic_msg_t {
+ INT32 code; /* generic */
+ INT32 length;
+ BYTE byte[DUMMY];
+};
+
+
+/* A "generic" message (with an INT32 array) */
+struct generic_int32_msg_t {
+ INT32 code; /* generic */
+ INT32 length;
+ INT32 int32[DUMMY];
+};
+
+
+/*
+** Host to target messages
+*/
+
+struct reset_msg_t {
+ INT32 code; /* 0 */
+ INT32 length;
+};
+
+
+struct config_req_msg_t {
+ INT32 code; /* 1 */
+ INT32 length;
+};
+
+
+struct status_req_msg_t {
+ INT32 code; /* 2 */
+ INT32 length;
+};
+
+
+struct read_req_msg_t {
+ INT32 code; /* 3 */
+ INT32 length;
+ INT32 memory_space;
+ ADDR32 address;
+ INT32 byte_count;
+};
+
+
+struct write_req_msg_t {
+ INT32 code; /* 4 */
+ INT32 length;
+ INT32 memory_space;
+ ADDR32 address;
+ INT32 byte_count;
+ BYTE data[DUMMY];
+};
+
+
+struct write_r_msg_t {
+ INT32 code; /* 4 */
+ INT32 length;
+ INT32 memory_space;
+ ADDR32 address;
+ INT32 byte_count;
+ INT32 data[DUMMY];
+};
+
+
+struct bkpt_set_msg_t {
+ INT32 code; /* 5 */
+ INT32 length;
+ INT32 memory_space;
+ ADDR32 bkpt_addr;
+ INT32 pass_count;
+ INT32 bkpt_type;
+};
+
+
+struct bkpt_rm_msg_t {
+ INT32 code; /* 6 */
+ INT32 length;
+ INT32 memory_space;
+ ADDR32 bkpt_addr;
+};
+
+
+struct bkpt_stat_msg_t {
+ INT32 code; /* 7 */
+ INT32 length;
+ INT32 memory_space;
+ ADDR32 bkpt_addr;
+};
+
+
+struct copy_msg_t {
+ INT32 code; /* 8 */
+ INT32 length;
+ INT32 source_space;
+ ADDR32 source_addr;
+ INT32 dest_space;
+ ADDR32 dest_addr;
+ INT32 byte_count;
+};
+
+
+struct fill_msg_t {
+ INT32 code; /* 9 */
+ INT32 length;
+ INT32 memory_space;
+ ADDR32 start_addr;
+ INT32 fill_count;
+ INT32 byte_count;
+ BYTE fill_data[DUMMY];
+};
+
+
+struct init_msg_t {
+ INT32 code; /* 10 */
+ INT32 length;
+ ADDR32 text_start;
+ ADDR32 text_end;
+ ADDR32 data_start;
+ ADDR32 data_end;
+ ADDR32 entry_point;
+ INT32 mem_stack_size;
+ INT32 reg_stack_size;
+ ADDR32 arg_start;
+ INT32 os_control;
+};
+
+
+struct go_msg_t {
+ INT32 code; /* 11 */
+ INT32 length;
+};
+
+
+struct step_msg_t {
+ INT32 code; /* 12 */
+ INT32 length;
+ INT32 count;
+};
+
+
+struct break_msg_t {
+ INT32 code; /* 13 */
+ INT32 length;
+};
+
+
+struct hif_call_rtn_msg_t {
+ INT32 code; /* 64 */
+ INT32 length;
+ INT32 service_number;
+ INT32 gr121;
+ INT32 gr96;
+ INT32 gr97;
+};
+
+
+struct channel0_msg_t {
+ INT32 code; /* 65 */
+ INT32 length;
+ BYTE data;
+};
+
+
+struct channel1_ack_msg_t {
+ INT32 code; /* 66 */
+ INT32 length;
+};
+
+
+/*
+** Target to host messages
+*/
+
+
+struct reset_ack_msg_t {
+ INT32 code; /* 32 */
+ INT32 length;
+};
+
+
+struct config_msg_t {
+ INT32 code; /* 33 */
+ INT32 length;
+ INT32 processor_id;
+ INT32 version;
+ ADDR32 I_mem_start;
+ INT32 I_mem_size;
+ ADDR32 D_mem_start;
+ INT32 D_mem_size;
+ ADDR32 ROM_start;
+ INT32 ROM_size;
+ INT32 max_msg_size;
+ INT32 max_bkpts;
+ INT32 coprocessor;
+ INT32 reserved;
+};
+
+
+struct status_msg_t {
+ INT32 code; /* 34 */
+ INT32 length;
+ INT32 msgs_sent;
+ INT32 msgs_received;
+ INT32 errors;
+ INT32 bkpts_hit;
+ INT32 bkpts_free;
+ INT32 traps;
+ INT32 fills;
+ INT32 spills;
+ INT32 cycles;
+ INT32 reserved;
+};
+
+
+struct read_ack_msg_t {
+ INT32 code; /* 35 */
+ INT32 length;
+ INT32 memory_space;
+ ADDR32 address;
+ INT32 byte_count;
+ BYTE data[DUMMY];
+};
+
+struct read_r_ack_msg_t {
+ INT32 code; /* 35 */
+ INT32 length;
+ INT32 memory_space;
+ ADDR32 address;
+ INT32 byte_count;
+ INT32 data[DUMMY];
+};
+
+
+struct write_ack_msg_t {
+ INT32 code; /* 36 */
+ INT32 length;
+ INT32 memory_space;
+ ADDR32 address;
+ INT32 byte_count;
+};
+
+
+struct bkpt_set_ack_msg_t {
+ INT32 code; /* 37 */
+ INT32 length;
+ INT32 memory_space;
+ ADDR32 address;
+ INT32 pass_count;
+ INT32 bkpt_type;
+};
+
+
+struct bkpt_rm_ack_msg_t {
+ INT32 code; /* 38 */
+ INT32 length;
+ INT32 memory_space;
+ ADDR32 address;
+};
+
+
+struct bkpt_stat_ack_msg_t {
+ INT32 code; /* 39 */
+ INT32 length;
+ INT32 memory_space;
+ ADDR32 address;
+ INT32 pass_count;
+ INT32 bkpt_type;
+};
+
+
+struct copy_ack_msg_t {
+ INT32 code; /* 40 */
+ INT32 length;
+ INT32 source_space;
+ ADDR32 source_addr;
+ INT32 dest_space;
+ ADDR32 dest_addr;
+ INT32 byte_count;
+};
+
+
+struct fill_ack_msg_t {
+ INT32 code; /* 41 */
+ INT32 length;
+ INT32 memory_space;
+ ADDR32 start_addr;
+ INT32 fill_count;
+ INT32 byte_count;
+};
+
+
+struct init_ack_msg_t {
+ INT32 code; /* 42 */
+ INT32 length;
+};
+
+
+struct halt_msg_t {
+ INT32 code; /* 43 */
+ INT32 length;
+ INT32 memory_space;
+ ADDR32 pc0;
+ ADDR32 pc1;
+ INT32 trap_number;
+};
+
+
+struct error_msg_t {
+ INT32 code; /* 63 */
+ INT32 length;
+ INT32 error_code;
+ INT32 memory_space;
+ ADDR32 address;
+};
+
+
+struct hif_call_msg_t {
+ INT32 code; /* 96 */
+ INT32 length;
+ INT32 service_number;
+ INT32 lr2;
+ INT32 lr3;
+ INT32 lr4;
+};
+
+
+struct channel0_ack_msg_t {
+ INT32 code; /* 97 */
+ INT32 length;
+};
+
+
+struct channel1_msg_t {
+ INT32 code; /* 98 */
+ INT32 length;
+ BYTE data[DUMMY];
+};
+
+
+
+/*
+** Union all of the message types together
+*/
+
+union msg_t {
+ struct generic_msg_t generic_msg;
+ struct generic_int32_msg_t generic_int32_msg;
+
+ struct reset_msg_t reset_msg;
+ struct config_req_msg_t config_req_msg;
+ struct status_req_msg_t status_req_msg;
+ struct read_req_msg_t read_req_msg;
+ struct write_req_msg_t write_req_msg;
+ struct write_r_msg_t write_r_msg;
+ struct bkpt_set_msg_t bkpt_set_msg;
+ struct bkpt_rm_msg_t bkpt_rm_msg;
+ struct bkpt_stat_msg_t bkpt_stat_msg;
+ struct copy_msg_t copy_msg;
+ struct fill_msg_t fill_msg;
+ struct init_msg_t init_msg;
+ struct go_msg_t go_msg;
+ struct step_msg_t step_msg;
+ struct break_msg_t break_msg;
+
+ struct hif_call_rtn_msg_t hif_call_rtn_msg;
+ struct channel0_msg_t channel0_msg;
+ struct channel1_ack_msg_t channel1_ack_msg;
+
+ struct reset_ack_msg_t reset_ack_msg;
+ struct config_msg_t config_msg;
+ struct status_msg_t status_msg;
+ struct read_ack_msg_t read_ack_msg;
+ struct read_r_ack_msg_t read_r_ack_msg;
+ struct write_ack_msg_t write_ack_msg;
+ struct bkpt_set_ack_msg_t bkpt_set_ack_msg;
+ struct bkpt_rm_ack_msg_t bkpt_rm_ack_msg;
+ struct bkpt_stat_ack_msg_t bkpt_stat_ack_msg;
+ struct copy_ack_msg_t copy_ack_msg;
+ struct fill_ack_msg_t fill_ack_msg;
+ struct init_ack_msg_t init_ack_msg;
+ struct halt_msg_t halt_msg;
+
+ struct error_msg_t error_msg;
+
+ struct hif_call_msg_t hif_call_msg;
+ struct channel0_ack_msg_t channel0_ack_msg;
+ struct channel1_msg_t channel1_msg;
+};
--- /dev/null
+/* Remote debugging interface for AMD 290*0 Adapt Monitor Version 2.1d18.
+ Copyright 1990, 1991 Free Software Foundation, Inc.
+ Contributed by David Wood at New York University (wood@lab.ultra.nyu.edu).
+ Adapted from work done at Cygnus Support in remote-eb.c.
+
+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 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* This is like remote.c but is for an esoteric situation--
+ having a 29k board attached to an Adapt inline monitor.
+ The monitor is connected via serial line to a unix machine
+ running gdb.
+
+ 3/91 - developed on Sun3 OS 4.1, by David Wood
+ o - I can't get binary coff to load.
+ o - I can't get 19200 baud rate to work.
+ 7/91 o - Freeze mode tracing can be done on a 29050. */
+
+#include <stdio.h>
+#include <string.h>
+#include "defs.h"
+#include "tm.h"
+#include "param-no-tm.h"
+#include "inferior.h"
+#include "wait.h"
+#include "value.h"
+#include <ctype.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <errno.h>
+#include "terminal.h"
+#include "target.h"
+#include "gdbcore.h"
+
+/* External data declarations */
+extern int stop_soon_quietly; /* for wait_for_inferior */
+
+/* External function declarations */
+extern struct value *call_function_by_hand();
+
+/* Forward data declarations */
+extern struct target_ops adapt_ops; /* Forward declaration */
+
+/* Forward function declarations */
+static void adapt_fetch_registers ();
+static int adapt_store_registers ();
+static void adapt_close ();
+
+/*
+ * Processor types. It is assumed that the adapt has the correct
+ * ROM for the given processor.
+ */
+#define TYPE_UNKNOWN 0
+#define TYPE_A29000 1
+#define TYPE_A29030 2
+#define TYPE_A29050 3
+static char *processor_name[] = { "Unknown", "A29000", "A29030", "A29050" };
+static int processor_type=TYPE_UNKNOWN;
+
+#define FREEZE_MODE (read_register(CPS_REGNUM) && 0x400)
+#define USE_SHADOW_PC ((processor_type == TYPE_A29050) && FREEZE_MODE)
+
+
+/* #define DEBUG /* */
+#ifdef DEBUG
+# define DENTER(NAME) (printf_filtered("Entering %s\n",NAME), fflush(stdout))
+# define DEXIT(NAME) (printf_filtered("Exiting %s\n",NAME), fflush(stdout))
+#else
+# define DENTER(NAME)
+# define DEXIT(NAME)
+#endif
+
+/* Can't seem to get binary coff working */
+#define ASCII_COFF /* Adapt will be downloaded with ascii coff */
+
+#define LOG_FILE "adapt.log"
+#if defined (LOG_FILE)
+FILE *log_file=NULL;
+#endif
+
+static int timeout = 5;
+static char *dev_name;
+
+/* Descriptor for I/O to remote machine. Initialize it to -1 so that
+ adapt_open knows that we don't have a file open when the program
+ starts. */
+int adapt_desc = -1;
+
+/* stream which is fdopen'd from adapt_desc. Only valid when
+ adapt_desc != -1. */
+FILE *adapt_stream;
+
+#define ON 1
+#define OFF 0
+static void
+rawmode(desc, turnon)
+int desc;
+int turnon;
+{
+ TERMINAL sg;
+
+ if (desc < 0)
+ return;
+
+ ioctl (desc, TIOCGETP, &sg);
+
+ if (turnon) {
+#ifdef HAVE_TERMIO
+ sg.c_lflag &= ~(ICANON);
+#else
+ sg.sg_flags |= RAW;
+#endif
+ } else {
+#ifdef HAVE_TERMIO
+ sg.c_lflag |= ICANON;
+#else
+ sg.sg_flags &= ~(RAW);
+#endif
+ }
+ ioctl (desc, TIOCSETP, &sg);
+}
+
+/* Suck up all the input from the adapt */
+slurp_input()
+{
+ char buf[8];
+
+#ifdef HAVE_TERMIO
+ /* termio does the timeout for us. */
+ while (read (adapt_desc, buf, 8) > 0);
+#else
+ alarm (timeout);
+ while (read (adapt_desc, buf, 8) > 0);
+ alarm (0);
+#endif
+}
+
+/* Read a character from the remote system, doing all the fancy
+ timeout stuff. */
+static int
+readchar ()
+{
+ char buf;
+
+ buf = '\0';
+#ifdef HAVE_TERMIO
+ /* termio does the timeout for us. */
+ read (adapt_desc, &buf, 1);
+#else
+ alarm (timeout);
+ if (read (adapt_desc, &buf, 1) < 0)
+ {
+ if (errno == EINTR)
+ error ("Timeout reading from remote system.");
+ else
+ perror_with_name ("remote");
+ }
+ alarm (0);
+#endif
+
+ if (buf == '\0')
+ error ("Timeout reading from remote system.");
+#if defined (LOG_FILE)
+ putc (buf & 0x7f, log_file);
+#endif
+ return buf & 0x7f;
+}
+
+/* Keep discarding input from the remote system, until STRING is found.
+ Let the user break out immediately. */
+static void
+expect (string)
+ char *string;
+{
+ char *p = string;
+
+ fflush(adapt_stream);
+ immediate_quit = 1;
+ while (1)
+ {
+ if (readchar() == *p)
+ {
+ p++;
+ if (*p == '\0')
+ {
+ immediate_quit = 0;
+ return;
+ }
+ }
+ else
+ p = string;
+ }
+}
+
+/* Keep discarding input until we see the adapt prompt.
+
+ The convention for dealing with the prompt is that you
+ o give your command
+ o *then* wait for the prompt.
+
+ Thus the last thing that a procedure does with the serial line
+ will be an expect_prompt(). Exception: adapt_resume does not
+ wait for the prompt, because the terminal is being handed over
+ to the inferior. However, the next thing which happens after that
+ is a adapt_wait which does wait for the prompt.
+ Note that this includes abnormal exit, e.g. error(). This is
+ necessary to prevent getting into states from which we can't
+ recover. */
+static void
+expect_prompt ()
+{
+#if defined (LOG_FILE)
+ /* This is a convenient place to do this. The idea is to do it often
+ enough that we never lose much data if we terminate abnormally. */
+ fflush (log_file);
+#endif
+ fflush(adapt_stream);
+ expect ("\n# ");
+}
+
+/* Get a hex digit from the remote system & return its value.
+ If ignore_space is nonzero, ignore spaces (not newline, tab, etc). */
+static int
+get_hex_digit (ignore_space)
+ int ignore_space;
+{
+ int ch;
+ while (1)
+ {
+ ch = readchar ();
+ if (ch >= '0' && ch <= '9')
+ return ch - '0';
+ else if (ch >= 'A' && ch <= 'F')
+ return ch - 'A' + 10;
+ else if (ch >= 'a' && ch <= 'f')
+ return ch - 'a' + 10;
+ else if (ch == ' ' && ignore_space)
+ ;
+ else
+ {
+ expect_prompt ();
+ error ("Invalid hex digit from remote system.");
+ }
+ }
+}
+
+/* Get a byte from adapt_desc and put it in *BYT. Accept any number
+ leading spaces. */
+static void
+get_hex_byte (byt)
+ char *byt;
+{
+ int val;
+
+ val = get_hex_digit (1) << 4;
+ val |= get_hex_digit (0);
+ *byt = val;
+}
+
+/* Read a 32-bit hex word from the adapt, preceded by a space */
+static long
+get_hex_word()
+{
+ long val;
+ int j;
+
+ val = 0;
+ for (j = 0; j < 8; j++)
+ val = (val << 4) + get_hex_digit (j == 0);
+ return val;
+}
+/* Get N 32-bit hex words from remote, each preceded by a space
+ and put them in registers starting at REGNO. */
+static void
+get_hex_regs (n, regno)
+ int n;
+ int regno;
+{
+ long val;
+ while (n--) {
+ val = get_hex_word();
+ supply_register(regno++,&val);
+ }
+}
+/* Called when SIGALRM signal sent due to alarm() timeout. */
+#ifndef HAVE_TERMIO
+
+#ifndef __STDC__
+# ifndef volatile
+# define volatile /**/
+# endif
+#endif
+volatile int n_alarms;
+
+void
+adapt_timer ()
+{
+#if 0
+ if (kiodebug)
+ printf ("adapt_timer called\n");
+#endif
+ n_alarms++;
+}
+#endif
+
+/* malloc'd name of the program on the remote system. */
+static char *prog_name = NULL;
+
+/* Number of SIGTRAPs we need to simulate. That is, the next
+ NEED_ARTIFICIAL_TRAP calls to adapt_wait should just return
+ SIGTRAP without actually waiting for anything. */
+
+static int need_artificial_trap = 0;
+
+void
+adapt_kill(arg,from_tty)
+char *arg;
+int from_tty;
+{
+ DENTER("adapt_kill()");
+ fprintf (adapt_stream, "K");
+ fprintf (adapt_stream, "\r");
+ expect_prompt ();
+ DEXIT("adapt_kill()");
+}
+/*
+ * Download a file specified in 'args', to the adapt.
+ * FIXME: Assumes the file to download is a binary coff file.
+ */
+static void
+adapt_load(args,fromtty)
+char *args;
+int fromtty;
+{
+ FILE *fp;
+ int n;
+ char buffer[1024];
+
+ DENTER("adapt_load()");
+ if (!adapt_stream) {
+ printf_filtered("Adapt not open. Use 'target' command to open adapt\n");
+ return;
+ }
+
+ /* OK, now read in the file. Y=read, C=COFF, T=dTe port
+ 0=start address. */
+
+#ifdef ASCII_COFF /* Ascii coff */
+ fprintf (adapt_stream, "YA T,0\r");
+ fflush(adapt_stream); /* Just in case */
+ /* FIXME: should check args for only 1 argument */
+ sprintf(buffer,"cat %s | btoa > /tmp/#adapt-btoa",args);
+ system(buffer);
+ fp = fopen("/tmp/#adapt-btoa","r");
+ rawmode(adapt_desc,OFF);
+ while (n=fread(buffer,1,1024,fp)) {
+ do { n -= write(adapt_desc,buffer,n); } while (n>0);
+ if (n<0) { perror("writing ascii coff"); break; }
+ }
+ fclose(fp);
+ rawmode(adapt_desc,ON);
+ system("rm /tmp/#adapt-btoa");
+#else /* Binary coff - can't get it to work .*/
+ fprintf (adapt_stream, "YC T,0\r");
+ fflush(adapt_stream); /* Just in case */
+ if (!(fp = fopen(args,"r"))) {
+ printf_filtered("Can't open %s\n",args);
+ return;
+ }
+ while (n=fread(buffer,1,512,fp)) {
+ do { n -= write(adapt_desc,buffer,n); } while (n>0);
+ if (n<0) { perror("writing ascii coff"); break; }
+ }
+ fclose(fp);
+#endif
+ expect_prompt (); /* Skip garbage that comes out */
+ fprintf (adapt_stream, "\r");
+ expect_prompt ();
+ DEXIT("adapt_load()");
+}
+
+/* This is called not only when we first attach, but also when the
+ user types "run" after having attached. */
+void
+adapt_create_inferior (execfile, args, env)
+ char *execfile;
+ char *args;
+ char **env;
+{
+ int entry_pt;
+
+ DENTER("adapt_create_inferior()");
+
+ if (args && *args)
+ error ("Can't pass arguments to remote adapt process.");
+
+ if (execfile == 0 || exec_bfd == 0)
+ error ("No exec file specified");
+
+ entry_pt = (int) bfd_get_start_address (exec_bfd);
+
+ if (adapt_stream) {
+ adapt_kill(NULL,NULL);
+ adapt_clear_breakpoints();
+ init_wait_for_inferior ();
+ /* Clear the input because what the adapt sends back is different
+ * depending on whether it was running or not.
+ */
+ slurp_input(); /* After this there should be a prompt */
+ fprintf(adapt_stream,"\r");
+ expect_prompt();
+ printf_filtered("Do you want to download '%s' (y/n)? [y] : ",prog_name);
+ {
+ char buffer[10];
+ gets(buffer);
+ if (*buffer != 'n') {
+ adapt_load(prog_name,0);
+ }
+ }
+
+#ifdef NOTDEF
+ /* Set the PC and wait for a go/cont */
+ fprintf (adapt_stream, "G %x,N\r",entry_pt);
+ printf_filtered("Now use the 'continue' command to start.\n");
+ expect_prompt ();
+#else
+ insert_breakpoints (); /* Needed to get correct instruction in cache */
+ proceed(entry_pt, -1, 0);
+#endif
+
+ } else {
+ printf_filtered("Adapt not open yet.\n");
+ }
+ DEXIT("adapt_create_inferior()");
+}
+
+/* Translate baud rates from integers to damn B_codes. Unix should
+ have outgrown this crap years ago, but even POSIX wouldn't buck it. */
+
+#ifndef B19200
+#define B19200 EXTA
+#endif
+#ifndef B38400
+#define B38400 EXTB
+#endif
+
+static struct {int rate, damn_b;} baudtab[] = {
+ {0, B0},
+ {50, B50},
+ {75, B75},
+ {110, B110},
+ {134, B134},
+ {150, B150},
+ {200, B200},
+ {300, B300},
+ {600, B600},
+ {1200, B1200},
+ {1800, B1800},
+ {2400, B2400},
+ {4800, B4800},
+ {9600, B9600},
+ {19200, B19200},
+ {38400, B38400},
+ {-1, -1},
+};
+
+static int damn_b (rate)
+ int rate;
+{
+ int i;
+
+ for (i = 0; baudtab[i].rate != -1; i++)
+ if (rate == baudtab[i].rate) return baudtab[i].damn_b;
+ return B38400; /* Random */
+}
+
+
+/* Open a connection to a remote debugger.
+ NAME is the filename used for communication, then a space,
+ then the baud rate.
+ */
+
+static int baudrate = 9600;
+static void
+adapt_open (name, from_tty)
+ char *name;
+ int from_tty;
+{
+ TERMINAL sg;
+ unsigned int prl;
+ char *p;
+
+ DENTER("adapt_open()");
+ /* Find the first whitespace character, it separates dev_name from
+ prog_name. */
+ if (name == 0)
+ goto erroid;
+
+ for (p = name;
+ *p != '\0' && !isspace (*p); p++)
+ ;
+ if (*p == '\0')
+erroid:
+ error ("\
+Please include the name of the device for the serial port,\n\
+the baud rate, and the name of the program to run on the remote system.");
+ dev_name = (char*)malloc(p - name + 1);
+ strncpy (dev_name, name, p - name);
+ dev_name[p - name] = '\0';
+
+ /* Skip over the whitespace after dev_name */
+ for (; isspace (*p); p++)
+ /*EMPTY*/;
+
+ if (1 != sscanf (p, "%d ", &baudrate))
+ goto erroid;
+
+ /* Skip the number and then the spaces */
+ for (; isdigit (*p); p++)
+ /*EMPTY*/;
+ for (; isspace (*p); p++)
+ /*EMPTY*/;
+
+ if (prog_name != NULL)
+ free (prog_name);
+ prog_name = savestring (p, strlen (p));
+
+ adapt_close (0);
+
+ adapt_desc = open (dev_name, O_RDWR);
+ if (adapt_desc < 0)
+ perror_with_name (dev_name);
+ ioctl (adapt_desc, TIOCGETP, &sg);
+#ifdef HAVE_TERMIO
+ sg.c_cc[VMIN] = 0; /* read with timeout. */
+ sg.c_cc[VTIME] = timeout * 10;
+ sg.c_lflag &= ~(ICANON | ECHO);
+ sg.c_cflag = (sg.c_cflag & ~CBAUD) | damn_b (baudrate);
+#else
+ sg.sg_ispeed = damn_b (baudrate);
+ sg.sg_ospeed = damn_b (baudrate);
+ sg.sg_flags |= RAW | ANYP;
+ sg.sg_flags &= ~ECHO;
+#endif
+
+ ioctl (adapt_desc, TIOCSETP, &sg);
+ adapt_stream = fdopen (adapt_desc, "r+");
+
+ push_target (&adapt_ops);
+ /* start_remote (); /* Initialize gdb process mechanisms */
+
+
+#ifndef HAVE_TERMIO
+#ifndef NO_SIGINTERRUPT
+ /* Cause SIGALRM's to make reads fail with EINTR instead of resuming
+ the read. */
+ if (siginterrupt (SIGALRM, 1) != 0)
+ perror ("adapt_open: error in siginterrupt");
+#endif
+
+ /* Set up read timeout timer. */
+ if ((void (*)) signal (SIGALRM, adapt_timer) == (void (*)) -1)
+ perror ("adapt_open: error in signal");
+#endif
+
+#if defined (LOG_FILE)
+ log_file = fopen (LOG_FILE, "w");
+ if (log_file == NULL)
+ perror_with_name (LOG_FILE);
+#endif
+
+ /* Put this port into NORMAL mode, send the 'normal' character */
+ write(adapt_desc, "\ 1", 1); /* Control A */
+ write(adapt_desc, "\r", 1);
+ expect_prompt ();
+
+ /* Hello? Are you there? */
+ write (adapt_desc, "\r", 1);
+
+ expect_prompt ();
+
+ /* Clear any break points */
+ adapt_clear_breakpoints();
+
+ /* Determine the processor revision level */
+ prl = (unsigned int)read_register(CFG_REGNUM) >> 24;
+ if (prl == 0x03) {
+ processor_type = TYPE_A29000;
+ } else if ((prl&0xf0) == 0x40) { /* 29030 = 0x4* */
+ processor_type = TYPE_A29030;
+ fprintf_filtered(stderr,"WARNING: debugging of A29030 not tested.\n");
+ } else if ((prl&0xf0) == 0x20) { /* 29050 = 0x2* */
+ processor_type = TYPE_A29050;
+ fprintf_filtered(stderr,"WARNING: debugging of A29050 not tested.\n");
+ } else {
+ processor_type = TYPE_UNKNOWN;
+ fprintf_filtered(stderr,"WARNING: processor type unknown.\n");
+ }
+
+ /* Print out some stuff, letting the user now what's going on */
+ printf_filtered("Remote debugging on an %s connect to an Adapt via %s.\n",
+ processor_name[processor_type],dev_name);
+ /* FIXME: can this restriction be removed? */
+ printf_filtered("Remote debugging using virtual addresses works only\n");
+ printf_filtered("\twhen virtual addresses map 1:1 to physical addresses.\n");
+ if (processor_type != TYPE_A29050) {
+ fprintf_filtered(stderr,
+ "Freeze-mode debugging not available, and can only be done on an A29050.\n");
+ }
+ DEXIT("adapt_open()");
+}
+
+/* Close out all files and local state before this target loses control. */
+
+static void
+adapt_close (quitting)
+ int quitting;
+{
+
+ DENTER("adapt_close()");
+
+ /* Clear any break points */
+ adapt_clear_breakpoints();
+
+ /* Put this port back into REMOTE mode */
+ if (adapt_stream) {
+ fflush(adapt_stream);
+ sleep(1); /* Let any output make it all the way back */
+ write(adapt_desc, "R\r", 2);
+ }
+
+ /* Due to a bug in Unix, fclose closes not only the stdio stream,
+ but also the file descriptor. So we don't actually close
+ adapt_desc. */
+ if (adapt_stream)
+ fclose (adapt_stream); /* This also closes adapt_desc */
+ if (adapt_desc >= 0)
+ /* close (adapt_desc); */
+
+ /* Do not try to close adapt_desc again, later in the program. */
+ adapt_stream = NULL;
+ adapt_desc = -1;
+
+#if defined (LOG_FILE)
+ if (log_file) {
+ if (ferror (log_file))
+ printf_filtered ("Error writing log file.\n");
+ if (fclose (log_file) != 0)
+ printf_filtered ("Error closing log file.\n");
+ log_file = NULL;
+ }
+#endif
+ DEXIT("adapt_close()");
+}
+
+/* Attach to the target that is already loaded and possibly running */
+static void
+adapt_attach (args, from_tty)
+ char *args;
+ int from_tty;
+{
+
+ DENTER("adapt_attach()");
+ if (from_tty)
+ printf_filtered ("Attaching to remote program %s.\n", prog_name);
+
+ /* push_target(&adapt_ops); /* This done in adapt_open() */
+
+ mark_breakpoints_out ();
+
+ /* Send the adapt a kill. It is ok if it is not already running */
+ fprintf(adapt_stream, "K\r"); fflush(adapt_stream);
+ expect_prompt(); /* Slurp the echo */
+
+ /* We will get a task spawn event immediately. */
+ init_wait_for_inferior ();
+ clear_proceed_status ();
+ stop_soon_quietly = 1;
+ wait_for_inferior ();
+ stop_soon_quietly = 0;
+ normal_stop ();
+ DEXIT("adapt_attach()");
+}
+
+
+/* Terminate the open connection to the remote debugger.
+ Use this when you want to detach and do something else
+ with your gdb. */
+void
+adapt_detach (args,from_tty)
+ char *args;
+ int from_tty;
+{
+ DENTER("adapt_detach()");
+ if (adapt_stream) { /* Send it on its way (tell it to continue) */
+ adapt_clear_breakpoints();
+ fprintf(adapt_stream,"G\r");
+ }
+
+ pop_target(); /* calls adapt_close to do the real work */
+ if (from_tty)
+ printf_filtered ("Ending remote %s debugging\n", target_shortname);
+ DEXIT("adapt_detach()");
+}
+
+/* Tell the remote machine to resume. */
+
+void
+adapt_resume (step, sig)
+ int step, sig;
+{
+ DENTER("adapt_resume()");
+ if (step)
+ {
+ write (adapt_desc, "t 1,s\r", 6);
+ /* Wait for the echo. */
+ expect ("t 1,s\r\n");
+ /* Then comes a line containing the instruction we stepped to. */
+ expect ("@");
+ /* Then we get the prompt. */
+ expect_prompt ();
+
+ /* Force the next adapt_wait to return a trap. Not doing anything
+ about I/O from the target means that the user has to type
+ "continue" to see any. FIXME, this should be fixed. */
+ need_artificial_trap = 1;
+ }
+ else
+ {
+ write (adapt_desc, "G\r", 2);
+ /* Swallow the echo. */
+ expect_prompt();
+ }
+ DEXIT("adapt_resume()");
+}
+
+/* Wait until the remote machine stops, then return,
+ storing status in STATUS just as `wait' would. */
+
+int
+adapt_wait (status)
+ WAITTYPE *status;
+{
+ /* Strings to look for. '?' means match any single character.
+ Note that with the algorithm we use, the initial character
+ of the string cannot recur in the string, or we will not
+ find some cases of the string in the input. */
+
+ static char bpt[] = "@";
+ /* It would be tempting to look for "\n[__exit + 0x8]\n"
+ but that requires loading symbols with "yc i" and even if
+ we did do that we don't know that the file has symbols. */
+ static char exitmsg[] = "@????????I JMPTI GR121,LR0";
+ char *bp = bpt;
+ char *ep = exitmsg;
+
+ /* Large enough for either sizeof (bpt) or sizeof (exitmsg) chars. */
+ char swallowed[50];
+ /* Current position in swallowed. */
+ char *swallowed_p = swallowed;
+
+ int ch;
+ int ch_handled;
+ int old_timeout = timeout;
+ int old_immediate_quit = immediate_quit;
+
+ DENTER("adapt_wait()");
+
+ WSETEXIT ((*status), 0);
+
+ if (need_artificial_trap != 0)
+ {
+ WSETSTOP ((*status), SIGTRAP);
+ need_artificial_trap--;
+ return 0;
+ }
+
+ timeout = 0; /* Don't time out -- user program is running. */
+ immediate_quit = 1; /* Helps ability to QUIT */
+ while (1) {
+ QUIT; /* Let user quit and leave process running */
+ ch_handled = 0;
+ ch = readchar ();
+ if (ch == *bp) {
+ bp++;
+ if (*bp == '\0')
+ break;
+ ch_handled = 1;
+
+ *swallowed_p++ = ch;
+ } else
+ bp = bpt;
+ if (ch == *ep || *ep == '?') {
+ ep++;
+ if (*ep == '\0')
+ break;
+
+ if (!ch_handled)
+ *swallowed_p++ = ch;
+ ch_handled = 1;
+ } else
+ ep = exitmsg;
+ if (!ch_handled) {
+ char *p;
+ /* Print out any characters which have been swallowed. */
+ for (p = swallowed; p < swallowed_p; ++p)
+ putc (*p, stdout);
+ swallowed_p = swallowed;
+ putc (ch, stdout);
+ }
+ }
+ expect_prompt ();
+ if (*bp== '\0')
+ WSETSTOP ((*status), SIGTRAP);
+ else
+ WSETEXIT ((*status), 0);
+ timeout = old_timeout;
+ immediate_quit = old_immediate_quit;
+ DEXIT("adapt_wait()");
+ return 0;
+}
+
+/* Return the name of register number REGNO
+ in the form input and output by adapt.
+
+ Returns a pointer to a static buffer containing the answer. */
+static char *
+get_reg_name (regno)
+ int regno;
+{
+ static char buf[80];
+ if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32 )
+ sprintf (buf, "GR%03d", regno - GR96_REGNUM + 96);
+#if defined(GR64_REGNUM)
+ else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32 )
+ sprintf (buf, "GR%03d", regno - GR64_REGNUM + 64);
+#endif
+ else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128)
+ sprintf (buf, "LR%03d", regno - LR0_REGNUM);
+ else if (regno == Q_REGNUM)
+ strcpy (buf, "SR131");
+ else if (regno >= BP_REGNUM && regno <= CR_REGNUM)
+ sprintf (buf, "SR%03d", regno - BP_REGNUM + 133);
+ else if (regno == ALU_REGNUM)
+ strcpy (buf, "SR132");
+ else if (regno >= IPC_REGNUM && regno <= IPB_REGNUM)
+ sprintf (buf, "SR%03d", regno - IPC_REGNUM + 128);
+ else if (regno >= VAB_REGNUM && regno <= LRU_REGNUM) {
+ /* When a 29050 is in freeze-mode, read shadow pcs instead */
+ if ((regno >= NPC_REGNUM && regno <= PC2_REGNUM) && USE_SHADOW_PC)
+ sprintf (buf, "SR%03d", regno - NPC_REGNUM + 20);
+ else
+ sprintf (buf, "SR%03d", regno - VAB_REGNUM);
+ }
+ else if (regno == GR1_REGNUM)
+ strcpy (buf, "GR001");
+ return buf;
+}
+
+/* Read the remote registers. */
+
+static void
+adapt_fetch_registers ()
+{
+ int reg_index;
+ int regnum_index;
+ char tempbuf[10];
+ int sreg_buf[16];
+ int i,j;
+
+ DENTER("adapt_fetch_registers()");
+
+/*
+ * Global registers
+ */
+#if defined(GR64_REGNUM)
+ write (adapt_desc, "dw gr64,gr95\r", 13);
+ for (reg_index = 64, regnum_index = GR64_REGNUM;
+ reg_index < 96;
+ reg_index += 4, regnum_index += 4)
+ {
+ sprintf (tempbuf, "GR%03d ", reg_index);
+ expect (tempbuf);
+ get_hex_regs (4, regnum_index);
+ expect ("\n");
+ }
+#endif
+ write (adapt_desc, "dw gr96,gr127\r", 14);
+ for (reg_index = 96, regnum_index = GR96_REGNUM;
+ reg_index < 128;
+ reg_index += 4, regnum_index += 4)
+ {
+ sprintf (tempbuf, "GR%03d ", reg_index);
+ expect (tempbuf);
+ get_hex_regs (4, regnum_index);
+ expect ("\n");
+ }
+
+/*
+ * Local registers
+ */
+ for (i = 0; i < 128; i += 32)
+ {
+ /* The PC has a tendency to hang if we get these
+ all in one fell swoop ("dw lr0,lr127"). */
+ sprintf (tempbuf, "dw lr%d\r", i);
+ write (adapt_desc, tempbuf, strlen (tempbuf));
+ for (reg_index = i, regnum_index = LR0_REGNUM + i;
+ reg_index < i + 32;
+ reg_index += 4, regnum_index += 4)
+ {
+ sprintf (tempbuf, "LR%03d ", reg_index);
+ expect (tempbuf);
+ get_hex_regs (4, regnum_index);
+ expect ("\n");
+ }
+ }
+
+/*
+ * Special registers
+ */
+ sprintf (tempbuf, "dw sr0\r");
+ write (adapt_desc, tempbuf, strlen (tempbuf));
+ for (i=0 ; i<4 ; i++) { /* SR0 - SR14 */
+ sprintf (tempbuf, "SR%3d",i*4);
+ expect(tempbuf);
+ for (j=0 ; j < (i==3 ? 3 : 4) ; j++)
+ sreg_buf[i*4 + j] = get_hex_word();
+ }
+ expect_prompt();
+ /*
+ * Read the pcs individually if we are in freeze mode.
+ * See get_reg_name(), it translates the register names for the pcs to
+ * the names of the shadow pcs.
+ */
+ if (USE_SHADOW_PC) {
+ sreg_buf[10] = read_register(NPC_REGNUM); /* pc0 */
+ sreg_buf[11] = read_register(PC_REGNUM); /* pc1 */
+ sreg_buf[12] = read_register(PC2_REGNUM); /* pc2 */
+ }
+ for (i=0 ; i<14 ; i++) /* Supply vab -> lru */
+ supply_register(VAB_REGNUM+i,&sreg_buf[i]);
+ sprintf (tempbuf, "dw sr128\r");
+ write (adapt_desc, tempbuf, strlen (tempbuf));
+ for (i=0 ; i<2 ; i++) { /* SR128 - SR135 */
+ sprintf (tempbuf, "SR%3d",128 + i*4);
+ expect(tempbuf);
+ for (j=0 ; j<4 ; j++)
+ sreg_buf[i*4 + j] = get_hex_word();
+ }
+ expect_prompt();
+ supply_register(IPC_REGNUM,&sreg_buf[0]);
+ supply_register(IPA_REGNUM,&sreg_buf[1]);
+ supply_register(IPB_REGNUM,&sreg_buf[2]);
+ supply_register(Q_REGNUM, &sreg_buf[3]);
+ /* Skip ALU */
+ supply_register(BP_REGNUM, &sreg_buf[5]);
+ supply_register(FC_REGNUM, &sreg_buf[6]);
+ supply_register(CR_REGNUM, &sreg_buf[7]);
+
+ /* There doesn't seem to be any way to get these. */
+ {
+ int val = -1;
+ supply_register (FPE_REGNUM, &val);
+ supply_register (INT_REGNUM, &val);
+ supply_register (FPS_REGNUM, &val);
+ supply_register (EXO_REGNUM, &val);
+ }
+
+ write (adapt_desc, "dw gr1,gr1\r", 11);
+ expect ("GR001 ");
+ get_hex_regs (1, GR1_REGNUM);
+ expect_prompt ();
+
+ DEXIT("adapt_fetch_registers()");
+}
+
+/* Fetch register REGNO, or all registers if REGNO is -1.
+ */
+static void
+adapt_fetch_register (regno)
+ int regno;
+{
+ DENTER("adapt_fetch_register()");
+ if (regno == -1)
+ adapt_fetch_registers ();
+ else
+ {
+ char *name = get_reg_name (regno);
+ fprintf (adapt_stream, "dw %s,%s\r", name, name);
+ expect (name);
+ expect (" ");
+ get_hex_regs (1, regno);
+ expect_prompt ();
+ }
+ DEXIT("adapt_fetch_register()");
+}
+
+/* Store the remote registers from the contents of the block REGS. */
+
+static int
+adapt_store_registers ()
+{
+ int i, j;
+
+ DENTER("adapt_store_registers()");
+ fprintf (adapt_stream, "s gr1,%x\r", read_register (GR1_REGNUM));
+ expect_prompt ();
+
+#if defined(GR64_REGNUM)
+ for (j = 0; j < 32; j += 16)
+ {
+ fprintf (adapt_stream, "s gr%d,", j + 64);
+ for (i = 0; i < 15; ++i)
+ fprintf (adapt_stream, "%x,", read_register (GR64_REGNUM + j + i));
+ fprintf (adapt_stream, "%x\r", read_register (GR64_REGNUM + j + 15));
+ expect_prompt ();
+ }
+#endif
+ for (j = 0; j < 32; j += 16)
+ {
+ fprintf (adapt_stream, "s gr%d,", j + 96);
+ for (i = 0; i < 15; ++i)
+ fprintf (adapt_stream, "%x,", read_register (GR96_REGNUM + j + i));
+ fprintf (adapt_stream, "%x\r", read_register (GR96_REGNUM + j + 15));
+ expect_prompt ();
+ }
+
+ for (j = 0; j < 128; j += 16)
+ {
+ fprintf (adapt_stream, "s lr%d,", j);
+ for (i = 0; i < 15; ++i)
+ fprintf (adapt_stream, "%x,", read_register (LR0_REGNUM + j + i));
+ fprintf (adapt_stream, "%x\r", read_register (LR0_REGNUM + j + 15));
+ expect_prompt ();
+ }
+
+ fprintf (adapt_stream, "s sr128,%x,%x,%x\r", read_register (IPC_REGNUM),
+ read_register (IPA_REGNUM), read_register (IPB_REGNUM));
+ expect_prompt ();
+ fprintf (adapt_stream, "s sr133,%x,%x,%x\r", read_register (BP_REGNUM),
+ read_register (FC_REGNUM), read_register (CR_REGNUM));
+ expect_prompt ();
+ fprintf (adapt_stream, "s sr131,%x\r", read_register (Q_REGNUM));
+ expect_prompt ();
+ fprintf (adapt_stream, "s sr0,");
+ for (i=0 ; i<7 ; ++i)
+ fprintf (adapt_stream, "%x,", read_register (VAB_REGNUM + i));
+ expect_prompt ();
+ fprintf (adapt_stream, "s sr7,");
+ for (i=7; i<14 ; ++i)
+ fprintf (adapt_stream, "%x,", read_register (VAB_REGNUM + i));
+ expect_prompt ();
+}
+
+/* Store register REGNO, or all if REGNO == -1.
+ Return errno value. */
+int
+adapt_store_register (regno)
+ int regno;
+{
+ /* printf("adapt_store_register() called.\n"); fflush(stdout); /* */
+ if (regno == -1)
+ adapt_store_registers ();
+ else
+ {
+ char *name = get_reg_name (regno);
+ fprintf (adapt_stream, "s %s,%x\r", name, read_register (regno));
+ /* Setting GR1 changes the numbers of all the locals, so
+ invalidate the register cache. Do this *after* calling
+ read_register, because we want read_register to return the
+ value that write_register has just stuffed into the registers
+ array, not the value of the register fetched from the
+ inferior. */
+ if (regno == GR1_REGNUM)
+ registers_changed ();
+ expect_prompt ();
+ }
+ DEXIT("adapt_store_registers()");
+ return 0;
+}
+
+/* Get ready to modify the registers array. On machines which store
+ individual registers, this doesn't need to do anything. On machines
+ which store all the registers in one fell swoop, this makes sure
+ that registers contains all the registers from the program being
+ debugged. */
+
+void
+adapt_prepare_to_store ()
+{
+ /* Do nothing, since we can store individual regs */
+}
+
+static CORE_ADDR
+translate_addr(addr)
+CORE_ADDR addr;
+{
+#if defined(KERNEL_DEBUGGING)
+ /* Check for a virtual address in the kernel */
+ /* Assume physical address of ublock is in paddr_u register */
+ if (addr >= UVADDR) {
+ /* PADDR_U register holds the physical address of the ublock */
+ CORE_ADDR i = (CORE_ADDR)read_register(PADDR_U_REGNUM);
+ return(i + addr - (CORE_ADDR)UVADDR);
+ } else {
+ return(addr);
+ }
+#else
+ return(addr);
+#endif
+}
+
+
+/* FIXME! Merge these two. */
+int
+adapt_xfer_inferior_memory (memaddr, myaddr, len, write)
+ CORE_ADDR memaddr;
+ char *myaddr;
+ int len;
+ int write;
+{
+
+ memaddr = translate_addr(memaddr);
+
+ if (write)
+ return adapt_write_inferior_memory (memaddr, myaddr, len);
+ else
+ return adapt_read_inferior_memory (memaddr, myaddr, len);
+}
+
+void
+adapt_files_info ()
+{
+ printf_filtered("\tAttached to %s at %d baud and running program %s\n",
+ dev_name, baudrate, prog_name);
+ printf_filtered("\ton an %s processor.\n", processor_name[processor_type]);
+}
+
+/* Copy LEN bytes of data from debugger memory at MYADDR
+ to inferior's memory at MEMADDR. Returns errno value.
+ * sb/sh instructions don't work on unaligned addresses, when TU=1.
+ */
+int
+adapt_write_inferior_memory (memaddr, myaddr, len)
+ CORE_ADDR memaddr;
+ char *myaddr;
+ int len;
+{
+ int i;
+ unsigned int cps;
+
+ /* DENTER("adapt_write_inferior_memory()"); */
+
+/* Turn TU bit off so we can do 'sb' commands */
+ cps = read_register(CPS_REGNUM);
+ if (cps & 0x00000800)
+ write_register(CPS_REGNUM,cps&~(0x00000800));
+
+ for (i = 0; i < len; i++)
+ {
+ if ((i % 16) == 0)
+ fprintf (adapt_stream, "sb %x,", memaddr + i);
+ if ((i % 16) == 15 || i == len - 1)
+ {
+ fprintf (adapt_stream, "%x\r", ((unsigned char *)myaddr)[i]);
+ expect_prompt ();
+ }
+ else
+ fprintf (adapt_stream, "%x,", ((unsigned char *)myaddr)[i]);
+ }
+ /* Restore the old value of cps if the TU bit was on */
+ if (cps & 0x00000800)
+ write_register(CPS_REGNUM,cps);
+ /* DEXIT("adapt_write_inferior_memory()"); */
+ return len;
+}
+
+/* Read LEN bytes from inferior memory at MEMADDR. Put the result
+ at debugger address MYADDR. Returns errno value. */
+int
+adapt_read_inferior_memory(memaddr, myaddr, len)
+ CORE_ADDR memaddr;
+ char *myaddr;
+ int len;
+{
+ int i;
+
+ /* Number of bytes read so far. */
+ int count;
+
+ /* Starting address of this pass. */
+ unsigned long startaddr;
+
+ /* Number of bytes to read in this pass. */
+ int len_this_pass;
+
+ /* Note that this code works correctly if startaddr is just less
+ than UINT_MAX (well, really CORE_ADDR_MAX if there was such a
+ thing). That is, something like
+ adapt_read_bytes (CORE_ADDR_MAX - 4, foo, 4)
+ works--it never adds len to memaddr and gets 0. */
+ /* However, something like
+ adapt_read_bytes (CORE_ADDR_MAX - 3, foo, 4)
+ doesn't need to work. Detect it and give up if there's an attempt
+ to do that. */
+ /* DENTER("adapt_read_inferior_memory()"); */
+
+ if (((memaddr - 1) + len) < memaddr)
+ return EIO;
+
+ startaddr = memaddr;
+ count = 0;
+ while (count < len)
+ {
+ len_this_pass = 16;
+ if ((startaddr % 16) != 0)
+ len_this_pass -= startaddr % 16;
+ if (len_this_pass > (len - count))
+ len_this_pass = (len - count);
+
+ fprintf (adapt_stream, "db %x,%x\r", startaddr,
+ (startaddr - 1) + len_this_pass);
+
+#ifdef NOTDEF /* Why do this */
+ expect ("\n");
+ /* Look for 8 hex digits. */
+ i = 0;
+ while (1)
+ {
+ if (isxdigit (readchar ()))
+ ++i;
+ else
+ {
+ expect_prompt ();
+ error ("Hex digit expected from remote system.");
+ }
+ if (i >= 8)
+ break;
+ }
+#endif /* NOTDEF */
+
+ expect (" ");
+
+ for (i = 0; i < len_this_pass; i++)
+ get_hex_byte (&myaddr[count++]);
+
+ expect_prompt ();
+
+ startaddr += len_this_pass;
+ }
+
+ /* DEXIT("adapt_read_inferior_memory()"); */
+ return count;
+}
+
+#define MAX_BREAKS 8
+static int num_brkpts=0;
+static int
+adapt_insert_breakpoint(addr, save)
+CORE_ADDR addr;
+char *save; /* Throw away, let adapt save instructions */
+{
+ DENTER("adapt_insert_breakpoint()");
+ if (num_brkpts < MAX_BREAKS) {
+ num_brkpts++;
+ fprintf (adapt_stream, "B %x", addr);
+ fprintf (adapt_stream, "\r");
+ expect_prompt ();
+ DEXIT("adapt_insert_breakpoint() success");
+ return(0); /* Success */
+ } else {
+ fprintf_filtered(stderr,
+ "Too many break points, break point not installed\n");
+ DEXIT("adapt_insert_breakpoint() failure");
+ return(1); /* Failure */
+ }
+
+}
+static int
+adapt_remove_breakpoint(addr, save)
+CORE_ADDR addr;
+char *save; /* Throw away, let adapt save instructions */
+{
+ DENTER("adapt_remove_breakpoint()");
+ if (num_brkpts > 0) {
+ num_brkpts--;
+ fprintf (adapt_stream, "BR %x", addr);
+ fprintf (adapt_stream, "\r");
+ fflush (adapt_stream);
+ expect_prompt ();
+ }
+ DEXIT("adapt_remove_breakpoint()");
+ return(0);
+}
+
+/* Clear the adapts notion of what the break points are */
+static int
+adapt_clear_breakpoints()
+{
+ DENTER("adapt_clear_breakpoint()");
+ if (adapt_stream) {
+ fprintf (adapt_stream, "BR"); /* Clear all break points */
+ fprintf (adapt_stream, "\r");
+ fflush(adapt_stream);
+ expect_prompt ();
+ }
+ num_brkpts = 0;
+ DEXIT("adapt_clear_breakpoint()");
+}
+static void
+adapt_mourn()
+{
+ DENTER("adapt_mourn()");
+ adapt_clear_breakpoints();
+ pop_target (); /* Pop back to no-child state */
+ generic_mourn_inferior ();
+ DEXIT("adapt_mourn()");
+}
+
+/* Display everthing we read in from the adapt until we match/see the
+ * specified string
+ */
+static int
+display_until(str)
+char *str;
+{
+ int i=0,j,c;
+
+ while (c=readchar()) {
+ if (c==str[i]) {
+ i++;
+ if (i == strlen(str)) return;
+ } else {
+ if (i) {
+ for (j=0 ; j<i ; j++) /* Put everthing we matched */
+ putchar(str[j]);
+ i=0;
+ }
+ putchar(c);
+ }
+ }
+
+}
+
+
+/* Put a command string, in args, out to the adapt. The adapt is assumed to
+ be in raw mode, all writing/reading done through adapt_desc.
+ Ouput from the adapt is placed on the users terminal until the
+ prompt from the adapt is seen.
+ FIXME: Can't handle commands that take input. */
+
+void
+adapt_com (args, fromtty)
+ char *args;
+ int fromtty;
+{
+ if (!adapt_stream) {
+ printf_filtered("Adapt not open. Use the 'target' command to open.\n");
+ return;
+ }
+
+ /* Clear all input so only command relative output is displayed */
+ slurp_input();
+
+ switch(islower(args[0]) ? toupper(args[0]) : args[0]) {
+ default:
+ printf_filtered("Unknown/Unimplemented adapt command '%s'\n",args);
+ break;
+ case 'G': /* Go, begin execution */
+ write(adapt_desc,args,strlen(args));
+ write(adapt_desc,"\r",1);
+ expect_prompt();
+ break;
+ case 'B': /* Break points, B or BR */
+ case 'C': /* Check current 29k status (running/halted) */
+ case 'D': /* Display data/registers */
+ case 'I': /* Input from i/o space */
+ case 'J': /* Jam an instruction */
+ case 'K': /* Kill, stop execution */
+ case 'L': /* Disassemble */
+ case 'O': /* Output to i/o space */
+ case 'T': /* Trace */
+ case 'P': /* Pulse an input line */
+ case 'X': /* Examine special purpose registers */
+ case 'Z': /* Display trace buffer */
+ write(adapt_desc,args,strlen(args));
+ write(adapt_desc,"\r",1);
+ expect(args); /* Don't display the command */
+ display_until("# ");
+ break;
+ /* Begin commands that take input in the form 'c x,y[,z...]' */
+ case 'S': /* Set memory or register */
+ if (index(args,',')) { /* Assume it is properly formatted */
+ write(adapt_desc,args,strlen(args));
+ write(adapt_desc,"\r",1);
+ expect_prompt();
+ }
+ break;
+ }
+}
+
+/* Define the target subroutine names */
+
+struct target_ops adapt_ops = {
+ "adapt", "Remote AMD `Adapt' target",
+ "Remote debug an AMD 290*0 using an `Adapt' monitor via RS232",
+ adapt_open, adapt_close,
+ adapt_attach, adapt_detach, adapt_resume, adapt_wait,
+ adapt_fetch_register, adapt_store_register,
+ adapt_prepare_to_store, 0, 0, /* conv_to, conv_from */
+ adapt_xfer_inferior_memory,
+ adapt_files_info,
+ adapt_insert_breakpoint, adapt_remove_breakpoint, /* Breakpoints */
+ 0, 0, 0, 0, 0, /* Terminal handling */
+ adapt_kill, /* FIXME, kill */
+ adapt_load,
+ call_function_by_hand,
+ 0, /* lookup_symbol */
+ adapt_create_inferior, /* create_inferior */
+ adapt_mourn, /* mourn_inferior FIXME */
+ process_stratum, 0, /* next */
+ 1, 1, 1, 1, 1, /* all mem, mem, stack, regs, exec */
+ 0,0, /* Section pointers */
+ OPS_MAGIC, /* Always the last thing */
+};
+
+void
+_initialize_remote_adapt ()
+{
+ add_target (&adapt_ops);
+ add_com ("adapt <command>", class_obscure, adapt_com,
+ "Send a command to the AMD Adapt remote monitor.");
+}
--- /dev/null
+/* Remote debugging interface for Am290*0 running MiniMON monitor, for GDB.
+ Copyright (C) 1990, 1991 Free Software Foundation, Inc.
+ Originally written by Daniel Mann at AMD.
+
+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 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* This is like remote.c but ecpects MiniMON to be running on the Am29000
+ target hardware.
+ - David Wood (wood@lab.ultra.nyu.edu) at New York University adapted this
+ file to gdb 3.95. I was unable to get this working on sun3os4
+ with termio, only with sgtty. Because we are only attempting to
+ use this module to debug our kernel, which is already loaded when
+ gdb is started up, I did not code up the file downloading facilities.
+ As a result this module has only the stubs to download files.
+ You should get tagged at compile time if you need to make any
+ changes/additions. */
+
+#include <stdio.h>
+#include "defs.h"
+#include "inferior.h"
+#include "wait.h"
+#include "value.h"
+#include <ctype.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <errno.h>
+#include <string.h>
+#include "terminal.h"
+#include "minimon.h"
+#include "target.h"
+
+/* Offset of member MEMBER in a struct of type TYPE. */
+#define offsetof(TYPE, MEMBER) ((int) &((TYPE *)0)->MEMBER)
+
+/* #define DEBUG 1 /* */
+#ifdef DEBUG
+# define DENTER(NAME) (printf("Entering %s\n",NAME), fflush(stdout))
+# define DEXIT(NAME) (printf("Exiting %s\n",NAME), fflush(stdout))
+#else
+# define DENTER(NAME)
+# define DEXIT(NAME)
+#endif
+
+#define DRAIN_INPUT() (msg_recv_serial((union msg_t*)0))
+
+extern int stop_soon_quietly; /* for wait_for_inferior */
+
+extern struct value *call_function_by_hand();
+
+static void mm_resume();
+static void mm_fetch_registers ();
+static int fetch_register ();
+static int mm_store_registers ();
+static int store_register ();
+static int regnum_to_srnum();
+static void mm_close ();
+static char* msg_str();
+static char* error_msg_str();
+static int expect_msg();
+static void init_target_mm();
+static int mm_memory_space();
+
+/*
+ * Processor types.
+ */
+#define TYPE_UNKNOWN 0
+#define TYPE_A29000 1
+#define TYPE_A29030 2
+#define TYPE_A29050 3
+static char *processor_name[] = { "Unknown", "A29000", "A29030", "A29050" };
+static int processor_type=TYPE_UNKNOWN;
+#define FREEZE_MODE (read_register(CPS_REGNUM) && 0x400)
+#define USE_SHADOW_PC ((processor_type == TYPE_A29050) && FREEZE_MODE)
+
+#define LLOG_FILE "minimon.log"
+#if defined (LOG_FILE)
+FILE *log_file;
+#endif
+
+/*
+ * Size of message buffers. I couldn't get memory reads to work when
+ * the byte_count was larger than 512 (it may be a baud rate problem).
+ */
+#define BUFER_SIZE 512
+/*
+ * Size of data area in message buffer on the TARGET (remote system).
+ */
+#define MAXDATA_T (target_config.max_msg_size - \
+ offsetof(struct write_r_msg_t,data[0]))
+/*
+ * Size of data area in message buffer on the HOST (gdb).
+ */
+#define MAXDATA_H (BUFER_SIZE - offsetof(struct write_r_msg_t,data[0]))
+/*
+ * Defined as the minimum size of data areas of the two message buffers
+ */
+#define MAXDATA (MAXDATA_H < MAXDATA_T ? MAXDATA_H : MAXDATA_T)
+
+static char out_buf[BUFER_SIZE];
+static char in_buf[BUFER_SIZE];
+
+int msg_recv_serial();
+int msg_send_serial();
+
+#define MAX_RETRIES 5000
+extern struct target_ops mm_ops; /* Forward declaration */
+struct config_msg_t target_config; /* HIF needs this */
+union msg_t *out_msg_buf = (union msg_t*)out_buf;
+union msg_t *in_msg_buf = (union msg_t*)in_buf;
+
+static int timeout = 5;
+
+/* Descriptor for I/O to remote machine. Initialize it to -1 so that
+ mm_open knows that we don't have a file open when the program
+ starts. */
+int mm_desc = -1;
+
+/* stream which is fdopen'd from mm_desc. Only valid when
+ mm_desc != -1. */
+FILE *mm_stream;
+
+/* Called when SIGALRM signal sent due to alarm() timeout. */
+#ifndef HAVE_TERMIO
+
+#ifndef __STDC__
+# ifndef volatile
+# define volatile /**/
+# endif
+#endif
+volatile int n_alarms;
+
+static void
+mm_timer ()
+{
+#if 0
+ if (kiodebug)
+ printf ("mm_timer called\n");
+#endif
+ n_alarms++;
+}
+#endif /* HAVE_TERMIO */
+
+/* malloc'd name of the program on the remote system. */
+static char *prog_name = NULL;
+
+
+/* Number of SIGTRAPs we need to simulate. That is, the next
+ NEED_ARTIFICIAL_TRAP calls to mm_wait should just return
+ SIGTRAP without actually waiting for anything. */
+
+/**************************************************** REMOTE_CREATE_INFERIOR */
+/* This is called not only when we first attach, but also when the
+ user types "run" after having attached. */
+static void
+mm_create_inferior (execfile, args, env)
+ char *execfile;
+ char *args;
+ char **env;
+{
+#define MAX_TOKENS 25
+#define BUFFER_SIZE 256
+ int token_count;
+ int result;
+ char *token[MAX_TOKENS];
+ char cmd_line[BUFFER_SIZE];
+
+ DENTER("mm_create_inferior()");
+
+ if (args && *args)
+ error ("Can't pass arguments to remote mm process (yet).");
+
+ if (execfile == 0 /* || exec_bfd == 0 */ )
+ error ("No exec file specified");
+
+ if (!mm_stream) {
+ printf("Minimon not open yet.\n");
+ return;
+ }
+
+ /* On ultra3 (NYU) we assume the kernel is already running so there is
+ no file to download.
+ FIXME: Fixed required here -> load your program, possibly with mm_load().
+ */
+ printf_filtered ("\n\
+Assuming you are at NYU debuging a kernel, i.e., no need to download.\n\n");
+
+ /* We will get a task spawn event immediately. */
+#ifdef NOTDEF /* start_remote() now does a wait without a resume
+ so don't use it*/
+ start_remote ();
+#else
+ init_wait_for_inferior ();
+ clear_proceed_status ();
+ stop_soon_quietly = 1;
+ proceed(-1,-1,0);
+ normal_stop ();
+#endif
+ DEXIT("mm_create_inferior()");
+}
+/**************************************************** REMOTE_MOURN_INFERIOR */
+static void
+mm_mourn()
+{
+ DENTER("mm_mourn()");
+ pop_target (); /* Pop back to no-child state */
+ generic_mourn_inferior ();
+ DEXIT("mm_mourn()");
+}
+
+/********************************************************************** damn_b
+*/
+/* Translate baud rates from integers to damn B_codes. Unix should
+ have outgrown this crap years ago, but even POSIX wouldn't buck it. */
+
+#ifndef B19200
+#define B19200 EXTA
+#endif
+#ifndef B38400
+#define B38400 EXTB
+#endif
+
+static struct {int rate, damn_b;} baudtab[] = {
+ {0, B0},
+ {50, B50},
+ {75, B75},
+ {110, B110},
+ {134, B134},
+ {150, B150},
+ {200, B200},
+ {300, B300},
+ {600, B600},
+ {1200, B1200},
+ {1800, B1800},
+ {2400, B2400},
+ {4800, B4800},
+ {9600, B9600},
+ {19200, B19200},
+ {38400, B38400},
+ {-1, -1},
+};
+
+static int damn_b (rate)
+ int rate;
+{
+ int i;
+
+ for (i = 0; baudtab[i].rate != -1; i++)
+ if (rate == baudtab[i].rate) return baudtab[i].damn_b;
+ return B38400; /* Random */
+}
+
+
+/***************************************************************** REMOTE_OPEN
+** Open a connection to remote minimon.
+ NAME is the filename used for communication, then a space,
+ then the baud rate.
+ 'target adapt /dev/ttya 9600 [prognam]' for example.
+ */
+
+static char *dev_name;
+int baudrate = 9600;
+static void
+mm_open (name, from_tty)
+ char *name;
+ int from_tty;
+{
+ TERMINAL sg;
+ unsigned int prl;
+ char *p;
+
+ DENTER("mm_open()");
+
+ /* Find the first whitespace character, it separates dev_name from
+ prog_name. */
+ for (p = name;
+ *p != '\0' && !isspace (*p); p++)
+ ;
+ if (*p == '\0')
+erroid:
+ error ("Usage : <command> <serial-device> <baud-rate> [progname]");
+ dev_name = (char*)malloc (p - name + 1);
+ strncpy (dev_name, name, p - name);
+ dev_name[p - name] = '\0';
+
+ /* Skip over the whitespace after dev_name */
+ for (; isspace (*p); p++)
+ /*EMPTY*/;
+
+ if (1 != sscanf (p, "%d ", &baudrate))
+ goto erroid;
+
+ /* Skip the number and then the spaces */
+ for (; isdigit (*p); p++)
+ /*EMPTY*/;
+ for (; isspace (*p); p++)
+ /*EMPTY*/;
+
+ if (prog_name != NULL)
+ free (prog_name);
+ prog_name = savestring (p, strlen (p));
+
+
+ if (mm_desc >= 0)
+ close (mm_desc);
+
+ mm_desc = open (dev_name, O_RDWR);
+ if (mm_desc < 0)
+ perror_with_name (dev_name);
+ ioctl (mm_desc, TIOCGETP, &sg);
+#ifdef HAVE_TERMIO
+ sg.c_cc[VMIN] = 0; /* read with timeout. */
+ sg.c_cc[VTIME] = timeout * 10;
+ sg.c_lflag &= ~(ICANON | ECHO);
+ sg.c_cflag = (sg.c_cflag & ~CBAUD) | damn_b (baudrate);
+#else
+ sg.sg_ispeed = damn_b (baudrate);
+ sg.sg_ospeed = damn_b (baudrate);
+ sg.sg_flags |= RAW;
+ sg.sg_flags |= ANYP;
+ sg.sg_flags &= ~ECHO;
+#endif
+
+
+ ioctl (mm_desc, TIOCSETP, &sg);
+ mm_stream = fdopen (mm_desc, "r+");
+
+ push_target (&mm_ops);
+
+#ifndef HAVE_TERMIO
+#ifndef NO_SIGINTERRUPT
+ /* Cause SIGALRM's to make reads fail with EINTR instead of resuming
+ the read. */
+ if (siginterrupt (SIGALRM, 1) != 0)
+ perror ("mm_open: error in siginterrupt");
+#endif
+
+ /* Set up read timeout timer. */
+ if ((void (*)) signal (SIGALRM, mm_timer) == (void (*)) -1)
+ perror ("mm_open: error in signal");
+#endif
+
+#if defined (LOG_FILE)
+ log_file = fopen (LOG_FILE, "w");
+ if (log_file == NULL)
+ perror_with_name (LOG_FILE);
+#endif
+ /*
+ ** Initialize target configuration structure (global)
+ */
+ DRAIN_INPUT();
+ out_msg_buf->config_req_msg.code = CONFIG_REQ;
+ out_msg_buf->config_req_msg.length = 4*0;
+ msg_send_serial(out_msg_buf); /* send config request message */
+
+ expect_msg(CONFIG,in_msg_buf,1);
+
+ /* Determine the processor revision level */
+ /* FIXME: this code is the same as in remote-adapt.c */
+ prl = (unsigned int)read_register(CFG_REGNUM) >> 24;
+ if (prl == 0x03) {
+ processor_type = TYPE_A29000;
+ } else if ((prl&0xf0) == 0x40) { /* 29030 = 0x4* */
+ processor_type = TYPE_A29030;
+ fprintf_filtered(stderr,"WARNING: debugging of A29030 not tested.\n");
+ } else if ((prl&0xf0) == 0x20) { /* 29050 = 0x2* */
+ processor_type = TYPE_A29050;
+ fprintf_filtered(stderr,"WARNING: debugging of A29050 not tested.\n");
+ } else {
+ processor_type = TYPE_UNKNOWN;
+ fprintf_filtered(stderr,"WARNING: processor type unknown.\n");
+ }
+
+ /* Print out some stuff, letting the user now what's going on */
+ printf_filtered("Remote debugging on an %s connect to MiniMon via %s.\n",
+ processor_name[processor_type],dev_name);
+ /* FIXME: can this restriction be removed? */
+ printf_filtered("Remote debugging using virtual addresses works only\n");
+ printf_filtered("\twhen virtual addresses map 1:1 to physical addresses.\n")
+;
+ if (processor_type != TYPE_A29050) {
+ fprintf_filtered(stderr,
+ "Freeze-mode debugging not available, and can only be done on an A29050.\n");
+ }
+
+ target_config.code = CONFIG;
+ target_config.length = 0;
+ target_config.processor_id = in_msg_buf->config_msg.processor_id;
+ target_config.version = in_msg_buf->config_msg.version;
+ target_config.I_mem_start = in_msg_buf->config_msg.I_mem_start;
+ target_config.I_mem_size = in_msg_buf->config_msg.I_mem_size;
+ target_config.D_mem_start = in_msg_buf->config_msg.D_mem_start;
+ target_config.D_mem_size = in_msg_buf->config_msg.D_mem_size;
+ target_config.ROM_start = in_msg_buf->config_msg.ROM_start;
+ target_config.ROM_size = in_msg_buf->config_msg.ROM_size;
+ target_config.max_msg_size = in_msg_buf->config_msg.max_msg_size;
+ target_config.max_bkpts = in_msg_buf->config_msg.max_bkpts;
+ target_config.coprocessor = in_msg_buf->config_msg.coprocessor;
+ target_config.reserved = in_msg_buf->config_msg.reserved;
+ if (from_tty) {
+ printf("Connected to MiniMON :\n");
+ printf(" Debugcore version %d.%d\n",
+ 0x0f & (target_config.version >> 4),
+ 0x0f & (target_config.version ) );
+ printf(" Configuration version %d.%d\n",
+ 0x0f & (target_config.version >> 12),
+ 0x0f & (target_config.version >> 8) );
+ printf(" Message system version %d.%d\n",
+ 0x0f & (target_config.version >> 20),
+ 0x0f & (target_config.version >> 16) );
+ printf(" Communication driver version %d.%d\n",
+ 0x0f & (target_config.version >> 28),
+ 0x0f & (target_config.version >> 24) );
+ }
+
+ /* Leave the target running...
+ * The above message stopped the target in the dbg core (MiniMon),
+ * so restart the target out of MiniMon,
+ */
+ out_msg_buf->go_msg.code = GO;
+ out_msg_buf->go_msg.length = 0;
+ msg_send_serial(out_msg_buf);
+ /* No message to expect after a GO */
+
+ DEXIT("mm_open()");
+}
+
+/**************************************************************** REMOTE_CLOSE
+** Close the open connection to the minimon debugger.
+ Use this when you want to detach and do something else
+ with your gdb. */
+static void
+mm_close (quitting) /*FIXME: how is quitting used */
+ int quitting;
+{
+ DENTER("mm_close()");
+
+ if (mm_desc < 0)
+ error ("Can't close remote connection: not debugging remotely.");
+
+ /* We should never get here if there isn't something valid in
+ mm_desc and mm_stream.
+
+ Due to a bug in Unix, fclose closes not only the stdio stream,
+ but also the file descriptor. So we don't actually close
+ mm_desc. */
+ DRAIN_INPUT();
+ fclose (mm_stream);
+ /* close (mm_desc); */
+
+ /* Do not try to close mm_desc again, later in the program. */
+ mm_stream = NULL;
+ mm_desc = -1;
+
+#if defined (LOG_FILE)
+ if (ferror (log_file))
+ printf ("Error writing log file.\n");
+ if (fclose (log_file) != 0)
+ printf ("Error closing log file.\n");
+#endif
+
+ printf ("Ending remote debugging\n");
+
+ DEXIT("mm_close()");
+
+}
+
+/************************************************************* REMOTE_ATACH */
+/* Attach to a program that is already loaded and running
+ * Upon exiting the process's execution is stopped.
+ */
+static void
+mm_attach (args, from_tty)
+ char *args;
+ int from_tty;
+{
+
+ DENTER("mm_attach()");
+
+ if (!mm_stream)
+ printf ("MiniMon not opened yet, use the 'target minimon' command.\n");
+
+ dont_repeat();
+
+ if (from_tty)
+ printf ("Attaching to remote program %s...\n", prog_name);
+
+
+ /* Make sure the target is currently running, it is supposed to be. */
+ /* FIXME: is it ok to send MiniMon a BREAK if it is already stopped in
+ * the dbg core. If so, we don't need to send this GO.
+ */
+ out_msg_buf->go_msg.code = GO;
+ out_msg_buf->go_msg.length = 0;
+ msg_send_serial(out_msg_buf);
+ sleep(2); /* At the worst it will stop, receive a message, continue */
+
+ /* Send the mm a break. */
+ out_msg_buf->break_msg.code = BREAK;
+ out_msg_buf->break_msg.length = 0;
+ msg_send_serial(out_msg_buf);
+
+ mark_breakpoints_out ();
+ init_wait_for_inferior ();
+ clear_proceed_status ();
+ stop_soon_quietly = 1;
+ wait_for_inferior ();
+ stop_soon_quietly = 0;
+ normal_stop ();
+
+ DEXIT("mm_attach()");
+}
+/********************************************************** REMOTE_DETACH */
+/* Terminate the open connection to the remote debugger.
+ Use this when you want to detach and do something else
+ with your gdb. Leave remote process running (with no breakpoints set). */
+static void
+mm_detach (args,from_tty)
+ char *args;
+ int from_tty;
+{
+ DENTER("mm_dettach()");
+ remove_breakpoints(); /* Just in case there were any left in */
+ out_msg_buf->go_msg.code = GO;
+ out_msg_buf->go_msg.length = 0;
+ msg_send_serial(out_msg_buf);
+ pop_target(); /* calls mm_close to do the real work */
+ DEXIT("mm_dettach()");
+}
+
+
+/*************************************************************** REMOTE_RESUME
+** Tell the remote machine to resume. */
+
+static void
+mm_resume (step, sig)
+ int step, sig;
+{
+ DENTER("mm_resume()");
+
+ if (sig)
+ error ("Can't send signals to a remote MiniMon system.");
+
+ if (step) {
+ out_msg_buf->step_msg.code= STEP;
+ out_msg_buf->step_msg.length = 1*4;
+ out_msg_buf->step_msg.count = 1; /* step 1 instruction */
+ msg_send_serial(out_msg_buf);
+ } else {
+ out_msg_buf->go_msg.code= GO;
+ out_msg_buf->go_msg.length = 0;
+ msg_send_serial(out_msg_buf);
+ }
+
+ DEXIT("mm_resume()");
+}
+
+/***************************************************************** REMOTE_WAIT
+** Wait until the remote machine stops, then return,
+ storing status in STATUS just as `wait' would. */
+
+static int
+mm_wait (status)
+ WAITTYPE *status;
+{
+ int i, result;
+ int old_timeout = timeout;
+ int old_immediate_quit = immediate_quit;
+
+ DENTER("mm_wait()");
+ WSETEXIT ((*status), 0);
+
+
+/* wait for message to arrive. It should be:
+ - A HIF service request.
+ - A HIF exit service request.
+ - A CHANNEL0_ACK.
+ - A CHANNEL1 request.
+ - a debugcore HALT message.
+ HIF services must be responded too, and while-looping continued.
+ If the target stops executing, mm_wait() should return.
+*/
+ timeout = 0; /* Wait indefinetly for a message */
+ immediate_quit = 1; /* Helps ability to QUIT */
+ while(1)
+ {
+ while(msg_recv_serial(in_msg_buf)) {
+ QUIT; /* Let user quit if they want */
+ }
+ switch (in_msg_buf->halt_msg.code)
+ {
+ case HIF_CALL:
+ i = in_msg_buf->hif_call_rtn_msg.service_number;
+ result=service_HIF(in_msg_buf);
+ if(i == 1) /* EXIT */
+ goto exit;
+ if(result)
+ printf("Warning: failure during HIF service %d\n", i);
+ break;
+ case CHANNEL0_ACK:
+ service_HIF(in_msg_buf);
+ break;
+ case CHANNEL1:
+ i=in_msg_buf->channel1_msg.length;
+ in_msg_buf->channel1_msg.data[i] = '\0';
+ printf("%s", in_msg_buf->channel1_msg.data);
+ fflush(stdout);
+ /* Send CHANNEL1_ACK message */
+ out_msg_buf->channel1_ack_msg.code = CHANNEL1_ACK;
+ out_msg_buf->channel1_ack_msg.length = 0;
+ result = msg_send_serial(out_msg_buf);
+ break;
+ case HALT:
+ goto halted;
+ default:
+ goto halted;
+ }
+ }
+halted:
+ /* FIXME, these printfs should not be here. This is a source level
+ debugger, guys! */
+ if (in_msg_buf->halt_msg.trap_number== 0)
+ { printf("Am290*0 received vector number %d (break point)\n",
+ in_msg_buf->halt_msg.trap_number);
+ WSETSTOP ((*status), SIGTRAP);
+ }
+ else if (in_msg_buf->halt_msg.trap_number== 1)
+ { printf("Am290*0 received vector number %d\n",
+ in_msg_buf->halt_msg.trap_number);
+ WSETSTOP ((*status), SIGBUS);
+ }
+ else if (in_msg_buf->halt_msg.trap_number== 3
+ || in_msg_buf->halt_msg.trap_number== 4)
+ { printf("Am290*0 received vector number %d\n",
+ in_msg_buf->halt_msg.trap_number);
+ WSETSTOP ((*status), SIGFPE);
+ }
+ else if (in_msg_buf->halt_msg.trap_number== 5)
+ { printf("Am290*0 received vector number %d\n",
+ in_msg_buf->halt_msg.trap_number);
+ WSETSTOP ((*status), SIGILL);
+ }
+ else if (in_msg_buf->halt_msg.trap_number >= 6
+ && in_msg_buf->halt_msg.trap_number <= 11)
+ { printf("Am290*0 received vector number %d\n",
+ in_msg_buf->halt_msg.trap_number);
+ WSETSTOP ((*status), SIGSEGV);
+ }
+ else if (in_msg_buf->halt_msg.trap_number== 12
+ || in_msg_buf->halt_msg.trap_number== 13)
+ { printf("Am290*0 received vector number %d\n",
+ in_msg_buf->halt_msg.trap_number);
+ WSETSTOP ((*status), SIGILL);
+ }
+ else if (in_msg_buf->halt_msg.trap_number== 14)
+ { printf("Am290*0 received vector number %d\n",
+ in_msg_buf->halt_msg.trap_number);
+ WSETSTOP ((*status), SIGALRM);
+ }
+ else if (in_msg_buf->halt_msg.trap_number== 15)
+ WSETSTOP ((*status), SIGTRAP);
+ else if (in_msg_buf->halt_msg.trap_number >= 16
+ && in_msg_buf->halt_msg.trap_number <= 21)
+ { printf("Am290*0 received vector number %d\n",
+ in_msg_buf->halt_msg.trap_number);
+ WSETSTOP ((*status), SIGINT);
+ }
+ else if (in_msg_buf->halt_msg.trap_number== 22)
+ { printf("Am290*0 received vector number %d\n",
+ in_msg_buf->halt_msg.trap_number);
+ WSETSTOP ((*status), SIGILL);
+ } /* BREAK message was sent */
+ else if (in_msg_buf->halt_msg.trap_number== 75)
+ WSETSTOP ((*status), SIGTRAP);
+ else
+exit:
+ WSETEXIT ((*status), 0);
+
+ timeout = old_timeout; /* Restore original timeout value */
+ immediate_quit = old_immediate_quit;
+ DEXIT("mm_wait()");
+ return 0;
+}
+
+/******************************************************* REMOTE_FETCH_REGISTERS
+ * Read a remote register 'regno'.
+ * If regno==-1 then read all the registers.
+ */
+static void
+mm_fetch_registers (regno)
+int regno;
+{
+ INT32 *data_p;
+
+ if (regno >= 0) {
+ fetch_register(regno);
+ return;
+ }
+
+ DENTER("mm_fetch_registers()");
+
+/* Gr1/rsp */
+ out_msg_buf->read_req_msg.byte_count = 4*1;
+ out_msg_buf->read_req_msg.memory_space = GLOBAL_REG;
+ out_msg_buf->read_req_msg.address = 1;
+ msg_send_serial(out_msg_buf);
+ expect_msg(READ_ACK,in_msg_buf,1);
+ data_p = &(in_msg_buf->read_r_ack_msg.data[0]);
+ supply_register (GR1_REGNUM , data_p);
+
+#if defined(GR64_REGNUM) /* Read gr64-127 */
+/* Global Registers gr64-gr95 */
+ out_msg_buf->read_req_msg.code= READ_REQ;
+ out_msg_buf->read_req_msg.length = 4*3;
+ out_msg_buf->read_req_msg.byte_count = 4*32;
+ out_msg_buf->read_req_msg.memory_space = GLOBAL_REG;
+ out_msg_buf->read_req_msg.address = 64;
+ msg_send_serial(out_msg_buf);
+ expect_msg(READ_ACK,in_msg_buf,1);
+ data_p = &(in_msg_buf->read_r_ack_msg.data[0]);
+
+ for (regno=GR64_REGNUM; regno<GR64_REGNUM+32; regno++) {
+ supply_register (regno, data_p++);
+ }
+#endif /* GR64_REGNUM */
+
+/* Global Registers gr96-gr127 */
+ out_msg_buf->read_req_msg.code= READ_REQ;
+ out_msg_buf->read_req_msg.length = 4*3;
+ out_msg_buf->read_req_msg.byte_count = 4 * 32;
+ out_msg_buf->read_req_msg.memory_space = GLOBAL_REG;
+ out_msg_buf->read_req_msg.address = 96;
+ msg_send_serial(out_msg_buf);
+ expect_msg(READ_ACK,in_msg_buf,1);
+ data_p = &(in_msg_buf->read_r_ack_msg.data[0]);
+
+ for (regno=GR96_REGNUM; regno<GR96_REGNUM+32; regno++) {
+ supply_register (regno, data_p++);
+ }
+
+/* Local Registers */
+ out_msg_buf->read_req_msg.byte_count = 4 * (128);
+ out_msg_buf->read_req_msg.memory_space = LOCAL_REG;
+ out_msg_buf->read_req_msg.address = 0;
+ msg_send_serial(out_msg_buf);
+ expect_msg(READ_ACK,in_msg_buf,1);
+ data_p = &(in_msg_buf->read_r_ack_msg.data[0]);
+
+ for (regno=LR0_REGNUM; regno<LR0_REGNUM+128; regno++) {
+ supply_register (regno, data_p++);
+ }
+
+/* Protected Special Registers */
+ out_msg_buf->read_req_msg.byte_count = 4*15;
+ out_msg_buf->read_req_msg.memory_space = SPECIAL_REG;
+ out_msg_buf->read_req_msg.address = 0;
+ msg_send_serial( out_msg_buf);
+ expect_msg(READ_ACK,in_msg_buf,1);
+ data_p = &(in_msg_buf->read_r_ack_msg.data[0]);
+
+ for (regno=0; regno<=14; regno++) {
+ supply_register (SR_REGNUM(regno), data_p++);
+ }
+ if (USE_SHADOW_PC) { /* Let regno_to_srnum() handle the register number */
+ fetch_register(NPC_REGNUM);
+ fetch_register(PC_REGNUM);
+ fetch_register(PC2_REGNUM);
+ }
+
+/* Unprotected Special Registers */
+ out_msg_buf->read_req_msg.byte_count = 4*8;
+ out_msg_buf->read_req_msg.memory_space = SPECIAL_REG;
+ out_msg_buf->read_req_msg.address = 128;
+ msg_send_serial( out_msg_buf);
+ expect_msg(READ_ACK,in_msg_buf,1);
+ data_p = &(in_msg_buf->read_r_ack_msg.data[0]);
+
+ for (regno=128; regno<=135; regno++) {
+ supply_register (SR_REGNUM(regno), data_p++);
+ }
+
+ /* There doesn't seem to be any way to get these. */
+ {
+ int val = -1;
+ supply_register (FPE_REGNUM, &val);
+ supply_register (INT_REGNUM, &val);
+ supply_register (FPS_REGNUM, &val);
+ supply_register (EXO_REGNUM, &val);
+ }
+
+ DEXIT("mm_fetch_registerS()");
+}
+
+
+/****************************************************** REMOTE_STORE_REGISTERS
+** Store register regno into the target.
+ * If regno==-1 then store all the registers.
+ */
+
+static int
+mm_store_registers (regno)
+int regno;
+{
+
+ if (regno >= 0)
+ return(store_register(regno));
+
+ DENTER("mm_store_registers()");
+
+ out_msg_buf->write_r_msg.code= WRITE_REQ;
+
+/* Gr1/rsp */
+ out_msg_buf->write_r_msg.byte_count = 4*1;
+ out_msg_buf->write_r_msg.length = 3*4 + out_msg_buf->write_r_msg.byte_count;
+ out_msg_buf->write_r_msg.memory_space = GLOBAL_REG;
+ out_msg_buf->write_r_msg.address = 1;
+ out_msg_buf->write_r_msg.data[0] = read_register (GR1_REGNUM);
+
+ msg_send_serial( out_msg_buf);
+ expect_msg(WRITE_ACK,in_msg_buf,1);
+
+#if defined(GR64_REGNUM)
+/* Global registers gr64-gr95 */
+ out_msg_buf->write_r_msg.byte_count = 4* (32);
+ out_msg_buf->write_r_msg.length = 3*4 + out_msg_buf->write_r_msg.byte_count;
+ out_msg_buf->write_r_msg.address = 64;
+
+ for (regno=GR64_REGNUM ; regno<GR64_REGNUM+32 ; regno++)
+ {
+ out_msg_buf->write_r_msg.data[regno-GR64_REGNUM] = read_register (regno);
+ }
+ msg_send_serial(out_msg_buf);
+ expect_msg(WRITE_ACK,in_msg_buf,1);
+#endif /* GR64_REGNUM */
+
+/* Global registers gr96-gr127 */
+ out_msg_buf->write_r_msg.byte_count = 4* (32);
+ out_msg_buf->write_r_msg.length = 3*4 + out_msg_buf->write_r_msg.byte_count;
+ out_msg_buf->write_r_msg.address = 96;
+ for (regno=GR96_REGNUM ; regno<GR96_REGNUM+32 ; regno++)
+ {
+ out_msg_buf->write_r_msg.data[regno-GR96_REGNUM] = read_register (regno);
+ }
+ msg_send_serial( out_msg_buf);
+ expect_msg(WRITE_ACK,in_msg_buf,1);
+
+/* Local Registers */
+ out_msg_buf->write_r_msg.memory_space = LOCAL_REG;
+ out_msg_buf->write_r_msg.byte_count = 4*128;
+ out_msg_buf->write_r_msg.length = 3*4 + out_msg_buf->write_r_msg.byte_count;
+ out_msg_buf->write_r_msg.address = 0;
+
+ for (regno = LR0_REGNUM ; regno < LR0_REGNUM+128 ; regno++)
+ {
+ out_msg_buf->write_r_msg.data[regno-LR0_REGNUM] = read_register (regno);
+ }
+ msg_send_serial( out_msg_buf);
+ expect_msg(WRITE_ACK,in_msg_buf,1);
+
+/* Protected Special Registers */
+ /* VAB through TMR */
+ out_msg_buf->write_r_msg.memory_space = SPECIAL_REG;
+ out_msg_buf->write_r_msg.byte_count = 4* 10;
+ out_msg_buf->write_r_msg.length = 3*4 + out_msg_buf->write_r_msg.byte_count;
+ out_msg_buf->write_r_msg.address = 0;
+ for (regno = 0 ; regno<=9 ; regno++) /* VAB through TMR */
+ out_msg_buf->write_r_msg.data[regno] = read_register (SR_REGNUM(regno));
+ msg_send_serial( out_msg_buf);
+ expect_msg(WRITE_ACK,in_msg_buf,1);
+
+ /* PC0, PC1, PC2 possibly as shadow registers */
+ out_msg_buf->write_r_msg.byte_count = 4* 3;
+ out_msg_buf->write_r_msg.length = 3*4 + out_msg_buf->write_r_msg.byte_count;
+ for (regno=10 ; regno<=12 ; regno++) /* LRU and MMU */
+ out_msg_buf->write_r_msg.data[regno-10] = read_register (SR_REGNUM(regno));
+ if (USE_SHADOW_PC)
+ out_msg_buf->write_r_msg.address = 20; /* SPC0 */
+ else
+ out_msg_buf->write_r_msg.address = 10; /* PC0 */
+ msg_send_serial( out_msg_buf);
+ expect_msg(WRITE_ACK,in_msg_buf,1);
+
+ /* LRU and MMU */
+ out_msg_buf->write_r_msg.byte_count = 4* 2;
+ out_msg_buf->write_r_msg.length = 3*4 + out_msg_buf->write_r_msg.byte_count;
+ out_msg_buf->write_r_msg.address = 13;
+ for (regno=13 ; regno<=14 ; regno++) /* LRU and MMU */
+ out_msg_buf->write_r_msg.data[regno-13] = read_register (SR_REGNUM(regno));
+ msg_send_serial( out_msg_buf);
+ expect_msg(WRITE_ACK,in_msg_buf,1);
+
+/* Unprotected Special Registers */
+ out_msg_buf->write_r_msg.byte_count = 4*8;
+ out_msg_buf->write_r_msg.length = 3*4 + out_msg_buf->write_r_msg.byte_count;
+ out_msg_buf->write_r_msg.address = 128;
+ for (regno = 128 ; regno<=135 ; regno++)
+ out_msg_buf->write_r_msg.data[regno-128] = read_register(SR_REGNUM(regno));
+ msg_send_serial( out_msg_buf);
+ expect_msg(WRITE_ACK,in_msg_buf,1);
+
+ registers_changed ();
+ DEXIT("mm_store_registers()");
+}
+
+/*************************************************** REMOTE_PREPARE_TO_STORE */
+/* Get ready to modify the registers array. On machines which store
+ individual registers, this doesn't need to do anything. On machines
+ which store all the registers in one fell swoop, this makes sure
+ that registers contains all the registers from the program being
+ debugged. */
+
+static void
+mm_prepare_to_store ()
+{
+ /* Do nothing, since we can store individual regs */
+}
+
+/******************************************************* REMOTE_XFER_MEMORY */
+static CORE_ADDR
+translate_addr(addr)
+CORE_ADDR addr;
+{
+#if defined(KERNEL_DEBUGGING)
+ /* Check for a virtual address in the kernel */
+ /* Assume physical address of ublock is in paddr_u register */
+ /* FIXME: doesn't work for user virtual addresses */
+ if (addr >= UVADDR) {
+ /* PADDR_U register holds the physical address of the ublock */
+ CORE_ADDR i = (CORE_ADDR)read_register(PADDR_U_REGNUM);
+ return(i + addr - (CORE_ADDR)UVADDR);
+ } else {
+ return(addr);
+ }
+#else
+ return(addr);
+#endif
+}
+/* FIXME! Merge these two. */
+static int
+mm_xfer_inferior_memory (memaddr, myaddr, len, write)
+ CORE_ADDR memaddr;
+ char *myaddr;
+ int len;
+ int write;
+{
+
+ memaddr = translate_addr(memaddr);
+
+ if (write)
+ return mm_write_inferior_memory (memaddr, myaddr, len);
+ else
+ return mm_read_inferior_memory (memaddr, myaddr, len);
+}
+
+/******************************************************* REMOTE_FILES_INFO */
+static void
+mm_files_info ()
+{
+ printf ("\tAttached to %s at %d baud and running program %s.\n",
+ dev_name, baudrate, prog_name);
+}
+
+/************************************************* REMOTE_INSERT_BREAKPOINT */
+static int
+mm_insert_breakpoint (addr, contents_cache)
+ CORE_ADDR addr;
+ char *contents_cache;
+{
+ DENTER("mm_insert_breakpoint()");
+ out_msg_buf->bkpt_set_msg.code = BKPT_SET;
+ out_msg_buf->bkpt_set_msg.length = 4*4;
+ out_msg_buf->bkpt_set_msg.memory_space = I_MEM;
+ out_msg_buf->bkpt_set_msg.bkpt_addr = (ADDR32) addr;
+ out_msg_buf->bkpt_set_msg.pass_count = 1;
+ out_msg_buf->bkpt_set_msg.bkpt_type = -1; /* use illop for 29000 */
+ msg_send_serial( out_msg_buf);
+ if (expect_msg(BKPT_SET_ACK,in_msg_buf,1)) {
+ DEXIT("mm_insert_breakpoint() success");
+ return 0; /* Success */
+ } else {
+ DEXIT("mm_insert_breakpoint() failure");
+ return 1; /* Failure */
+ }
+}
+
+/************************************************* REMOTE_DELETE_BREAKPOINT */
+static int
+mm_remove_breakpoint (addr, contents_cache)
+ CORE_ADDR addr;
+ char *contents_cache;
+{
+ DENTER("mm_remove_breakpoint()");
+ out_msg_buf->bkpt_rm_msg.code = BKPT_RM;
+ out_msg_buf->bkpt_rm_msg.length = 4*3;
+ out_msg_buf->bkpt_rm_msg.memory_space = I_MEM;
+ out_msg_buf->bkpt_rm_msg.bkpt_addr = (ADDR32) addr;
+ msg_send_serial( out_msg_buf);
+ if (expect_msg(BKPT_RM_ACK,in_msg_buf,1)) {
+ DEXIT("mm_remove_breakpoint()");
+ return 0; /* Success */
+ } else {
+ DEXIT("mm_remove_breakpoint()");
+ return 1; /* Failure */
+ }
+}
+
+
+/******************************************************* REMOTE_KILL */
+static void
+mm_kill(arg,from_tty)
+char *arg;
+int from_tty;
+{
+ char buf[4];
+
+ DENTER("mm_kill()");
+#if defined(KERNEL_DEBUGGING)
+ /* We don't ever kill the kernel */
+ if (from_tty) {
+ printf("Kernel not killed, but left in current state.\n");
+ printf("Use detach to leave kernel running.\n");
+ }
+#else
+ out_msg_buf->break_msg.code = BREAK;
+ out_msg_buf->bkpt_set_msg.length = 4*0;
+ expect_msg(HALT,in_msg_buf,from_tty);
+ if (from_tty) {
+ printf("Target has been stopped.");
+ printf("Would you like to do a hardware reset (y/n) [n] ");
+ fgets(buf,3,stdin);
+ if (buf[0] == 'y') {
+ out_msg_buf->reset_msg.code = RESET;
+ out_msg_buf->bkpt_set_msg.length = 4*0;
+ expect_msg(RESET_ACK,in_msg_buf,from_tty);
+ printf("Target has been reset.");
+ }
+ }
+ pop_target();
+#endif
+ DEXIT("mm_kill()");
+}
+
+
+
+/***************************************************************************/
+/*
+ * Load a program into the target.
+ */
+static void
+mm_load(arg_string,from_tty)
+char *arg_string;
+int from_tty;
+{
+ dont_repeat ();
+
+#if defined(KERNEL_DEBUGGING)
+ printf("The kernel had better be loaded already! Loading not done.\n");
+#else
+ if (arg_string == 0)
+ error ("The load command takes a file name");
+
+ arg_string = tilde_expand (arg_string);
+ make_cleanup (free, arg_string);
+ QUIT;
+ immediate_quit++;
+ error("File loading is not yet supported for MiniMon.");
+ /* FIXME, code to load your file here... */
+ /* You may need to do an init_target_mm() */
+ /* init_target_mm(?,?,?,?,?,?,?,?); */
+ immediate_quit--;
+ symbol_file_add (arg_string, from_tty, text_addr, 0);
+#endif
+
+}
+
+/************************************************ REMOTE_WRITE_INFERIOR_MEMORY
+** Copy LEN bytes of data from debugger memory at MYADDR
+ to inferior's memory at MEMADDR. Returns number of bytes written. */
+static int
+mm_write_inferior_memory (memaddr, myaddr, len)
+ CORE_ADDR memaddr;
+ char *myaddr;
+ int len;
+{
+ int i,nwritten;
+
+ /* DENTER("mm_write_inferior_memory()"); */
+ out_msg_buf->write_req_msg.code= WRITE_REQ;
+ out_msg_buf->write_req_msg.memory_space = mm_memory_space(memaddr);
+
+ nwritten=0;
+ while (nwritten < len) {
+ int num_to_write = len - nwritten;
+ if (num_to_write > MAXDATA) num_to_write = MAXDATA;
+ for (i=0 ; i < num_to_write ; i++)
+ out_msg_buf->write_req_msg.data[i] = myaddr[i+nwritten];
+ out_msg_buf->write_req_msg.byte_count = num_to_write;
+ out_msg_buf->write_req_msg.length = 3*4 + num_to_write;
+ out_msg_buf->write_req_msg.address = memaddr + nwritten;
+ msg_send_serial(out_msg_buf);
+
+ if (expect_msg(WRITE_ACK,in_msg_buf,1)) {
+ nwritten += in_msg_buf->write_ack_msg.byte_count;
+ } else {
+ break;
+ }
+ }
+ /* DEXIT("mm_write_inferior_memory()"); */
+ return(nwritten);
+}
+
+/************************************************* REMOTE_READ_INFERIOR_MEMORY
+** Read LEN bytes from inferior memory at MEMADDR. Put the result
+ at debugger address MYADDR. Returns number of bytes read. */
+static int
+mm_read_inferior_memory(memaddr, myaddr, len)
+ CORE_ADDR memaddr;
+ char *myaddr;
+ int len;
+{
+ int i,nread;
+
+ /* DENTER("mm_read_inferior_memory()"); */
+ out_msg_buf->read_req_msg.code= READ_REQ;
+ out_msg_buf->read_req_msg.memory_space = mm_memory_space(memaddr);
+
+ nread=0;
+ while (nread < len) {
+ int num_to_read = (len - nread);
+ if (num_to_read > MAXDATA) num_to_read = MAXDATA;
+ out_msg_buf->read_req_msg.byte_count = num_to_read;
+ out_msg_buf->read_req_msg.length = 3*4 + num_to_read;
+ out_msg_buf->read_req_msg.address = memaddr + nread;
+ msg_send_serial(out_msg_buf);
+
+ if (expect_msg(READ_ACK,in_msg_buf,1)) {
+ for (i=0 ; i<in_msg_buf->read_ack_msg.byte_count ; i++)
+ myaddr[i+nread] = in_msg_buf->read_ack_msg.data[i];
+ nread += in_msg_buf->read_ack_msg.byte_count;
+ } else {
+ break;
+ }
+ }
+ return(nread);
+}
+
+/********************************************************** MSG_SEND_SERIAL
+** This function is used to send a message over the
+** serial line.
+**
+** If the message is successfully sent, a zero is
+** returned. If the message was not sendable, a -1
+** is returned. This function blocks. That is, it
+** does not return until the message is completely
+** sent, or until an error is encountered.
+**
+*/
+
+int
+msg_send_serial(msg_ptr)
+ union msg_t *msg_ptr;
+{
+ INT32 message_size;
+ int byte_count;
+ int result;
+ char c;
+
+ /* Send message header */
+ byte_count = 0;
+ message_size = msg_ptr->generic_msg.length + (2 * sizeof(INT32));
+ do {
+ c = *((char *)msg_ptr+byte_count);
+ result = write(mm_desc, &c, 1);
+ if (result == 1) {
+ byte_count = byte_count + 1;
+ }
+ } while ((byte_count < message_size) );
+
+ return(0);
+} /* end msg_send_serial() */
+
+/********************************************************** MSG_RECV_SERIAL
+** This function is used to receive a message over a
+** serial line.
+**
+** If the message is waiting in the buffer, a zero is
+** returned and the buffer pointed to by msg_ptr is filled
+** in. If no message was available, a -1 is returned.
+** If timeout==0, wait indefinetly for a character.
+**
+*/
+
+int
+msg_recv_serial(msg_ptr)
+union msg_t *msg_ptr;
+{
+ static INT32 length=0;
+ static INT32 byte_count=0;
+ int result;
+ char c;
+ if(msg_ptr == 0) /* re-sync request */
+ { length=0;
+ byte_count=0;
+#ifdef HAVE_TERMIO
+ /* The timeout here is the prevailing timeout set with VTIME */
+ ->"timeout==0 semantics not supported"
+ read(mm_desc, in_buf, BUFER_SIZE);
+#else
+ alarm (1);
+ read(mm_desc, in_buf, BUFER_SIZE);
+ alarm (0);
+#endif
+ return(0);
+ }
+ /* Receive message */
+#ifdef HAVE_TERMIO
+/* Timeout==0, help support the mm_wait() routine */
+ ->"timeout==0 semantics not supported (and its nice if they are)"
+ result = read(mm_desc, &c, 1);
+#else
+ alarm(timeout);
+ result = read(mm_desc, &c, 1);
+ alarm (0);
+#endif
+ if ( result < 0) {
+ if (errno == EINTR) {
+ error ("Timeout reading from remote system.");
+ } else
+ perror_with_name ("remote");
+ } else if (result == 1) {
+ *((char *)msg_ptr+byte_count) = c;
+ byte_count = byte_count + 1;
+ }
+
+ /* Message header received. Save message length. */
+ if (byte_count == (2 * sizeof(INT32)))
+ length = msg_ptr->generic_msg.length;
+
+ if (byte_count >= (length + (2 * sizeof(INT32)))) {
+ /* Message received */
+ byte_count = 0;
+ return(0);
+ } else
+ return (-1);
+
+} /* end msg_recv_serial() */
+
+/********************************************************************* KBD_RAW
+** This function is used to put the keyboard in "raw"
+** mode for BSD Unix. The original status is saved
+** so that it may be restored later.
+*/
+TERMINAL kbd_tbuf;
+
+int
+kbd_raw() {
+ int result;
+ TERMINAL tbuf;
+
+ /* Get keyboard termio (to save to restore original modes) */
+#ifdef HAVE_TERMIO
+ result = ioctl(0, TCGETA, &kbd_tbuf);
+#else
+ result = ioctl(0, TIOCGETP, &kbd_tbuf);
+#endif
+ if (result == -1)
+ return (errno);
+
+ /* Get keyboard TERMINAL (for modification) */
+#ifdef HAVE_TERMIO
+ result = ioctl(0, TCGETA, &tbuf);
+#else
+ result = ioctl(0, TIOCGETP, &tbuf);
+#endif
+ if (result == -1)
+ return (errno);
+
+ /* Set up new parameters */
+#ifdef HAVE_TERMIO
+ tbuf.c_iflag = tbuf.c_iflag &
+ ~(INLCR | ICRNL | IUCLC | ISTRIP | IXON | BRKINT);
+ tbuf.c_lflag = tbuf.c_lflag & ~(ICANON | ISIG | ECHO);
+ tbuf.c_cc[4] = 0; /* MIN */
+ tbuf.c_cc[5] = 0; /* TIME */
+#else
+ /* FIXME: not sure if this is correct (matches HAVE_TERMIO). */
+ tbuf.sg_flags |= RAW;
+ tbuf.sg_flags |= ANYP;
+ tbuf.sg_flags &= ~ECHO;
+#endif
+
+ /* Set keyboard termio to new mode (RAW) */
+#ifdef HAVE_TERMIO
+ result = ioctl(0, TCSETAF, &tbuf);
+#else
+ result = ioctl(0, TIOCSETP, &tbuf);
+#endif
+ if (result == -1)
+ return (errno);
+
+ return (0);
+} /* end kbd_raw() */
+
+
+
+/***************************************************************** KBD_RESTORE
+** This function is used to put the keyboard back in the
+** mode it was in before kbk_raw was called. Note that
+** kbk_raw() must have been called at least once before
+** kbd_restore() is called.
+*/
+
+int
+kbd_restore() {
+ int result;
+
+ /* Set keyboard termio to original mode */
+#ifdef HAVE_TERMIO
+ result = ioctl(0, TCSETAF, &kbd_tbuf);
+#else
+ result = ioctl(0, TIOCGETP, &kbd_tbuf);
+#endif
+
+ if (result == -1)
+ return (errno);
+
+ return(0);
+} /* end kbd_cooked() */
+
+
+/*****************************************************************************/
+/* Fetch a single register indicatated by 'regno'.
+ * Returns 0/-1 on success/failure.
+ */
+static int
+fetch_register (regno)
+ int regno;
+{
+ int result;
+ DENTER("mm_fetch_register()");
+ out_msg_buf->read_req_msg.code= READ_REQ;
+ out_msg_buf->read_req_msg.length = 4*3;
+ out_msg_buf->read_req_msg.byte_count = 4;
+
+ if (regno == GR1_REGNUM)
+ { out_msg_buf->read_req_msg.memory_space = GLOBAL_REG;
+ out_msg_buf->read_req_msg.address = 1;
+ }
+ else if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32)
+ { out_msg_buf->read_req_msg.memory_space = GLOBAL_REG;
+ out_msg_buf->read_req_msg.address = (regno - GR96_REGNUM) + 96;
+ }
+#if defined(GR64_REGNUM)
+ else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32 )
+ { out_msg_buf->read_req_msg.memory_space = GLOBAL_REG;
+ out_msg_buf->read_req_msg.address = (regno - GR64_REGNUM) + 64;
+ }
+#endif /* GR64_REGNUM */
+ else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128)
+ { out_msg_buf->read_req_msg.memory_space = LOCAL_REG;
+ out_msg_buf->read_req_msg.address = (regno - LR0_REGNUM);
+ }
+ else if (regno>=FPE_REGNUM && regno<=EXO_REGNUM)
+ { int val = -1;
+ supply_register(160 + (regno - FPE_REGNUM),&val);
+ return 0; /* Pretend Success */
+ }
+ else
+ { out_msg_buf->read_req_msg.memory_space = SPECIAL_REG;
+ out_msg_buf->read_req_msg.address = regnum_to_srnum(regno);
+ }
+
+ msg_send_serial(out_msg_buf);
+
+ if (expect_msg(READ_ACK,in_msg_buf,1)) {
+ supply_register (regno, &(in_msg_buf->read_r_ack_msg.data[0]));
+ result = 0;
+ } else {
+ result = -1;
+ }
+ DEXIT("mm_fetch_register()");
+ return result;
+}
+/*****************************************************************************/
+/* Store a single register indicated by 'regno'.
+ * Returns 0/-1 on success/failure.
+ */
+static int
+store_register (regno)
+ int regno;
+{
+ int result;
+
+ DENTER("store_register()");
+ out_msg_buf->write_req_msg.code= WRITE_REQ;
+ out_msg_buf->write_req_msg.length = 4*4;
+ out_msg_buf->write_req_msg.byte_count = 4;
+ out_msg_buf->write_r_msg.data[0] = read_register (regno);
+
+ if (regno == GR1_REGNUM)
+ { out_msg_buf->write_req_msg.memory_space = GLOBAL_REG;
+ out_msg_buf->write_req_msg.address = 1;
+ /* Setting GR1 changes the numbers of all the locals, so invalidate the
+ * register cache. Do this *after* calling read_register, because we want
+ * read_register to return the value that write_register has just stuffed
+ * into the registers array, not the value of the register fetched from
+ * the inferior.
+ */
+ registers_changed ();
+ }
+#if defined(GR64_REGNUM)
+ else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32 )
+ { out_msg_buf->write_req_msg.memory_space = GLOBAL_REG;
+ out_msg_buf->write_req_msg.address = (regno - GR64_REGNUM) + 64;
+ }
+#endif /* GR64_REGNUM */
+ else if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32)
+ { out_msg_buf->write_req_msg.memory_space = GLOBAL_REG;
+ out_msg_buf->write_req_msg.address = (regno - GR96_REGNUM) + 96;
+ }
+ else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128)
+ { out_msg_buf->write_req_msg.memory_space = LOCAL_REG;
+ out_msg_buf->write_req_msg.address = (regno - LR0_REGNUM);
+ }
+ else if (regno>=FPE_REGNUM && regno<=EXO_REGNUM)
+ {
+ return 0; /* Pretend Success */
+ }
+ else /* An unprotected or protected special register */
+ { out_msg_buf->write_req_msg.memory_space = SPECIAL_REG;
+ out_msg_buf->write_req_msg.address = regnum_to_srnum(regno);
+ }
+
+ msg_send_serial(out_msg_buf);
+
+ if (expect_msg(WRITE_ACK,in_msg_buf,1)) {
+ result = 0;
+ } else {
+ result = -1;
+ }
+ DEXIT("store_register()");
+ return result;
+}
+/****************************************************************************/
+/*
+ * Convert a gdb special register number to a 29000 special register number.
+ */
+static int
+regnum_to_srnum(regno)
+int regno;
+{
+ switch(regno) {
+ case VAB_REGNUM: return(0);
+ case OPS_REGNUM: return(1);
+ case CPS_REGNUM: return(2);
+ case CFG_REGNUM: return(3);
+ case CHA_REGNUM: return(4);
+ case CHD_REGNUM: return(5);
+ case CHC_REGNUM: return(6);
+ case RBP_REGNUM: return(7);
+ case TMC_REGNUM: return(8);
+ case TMR_REGNUM: return(9);
+ case NPC_REGNUM: return(USE_SHADOW_PC ? (20) : (10));
+ case PC_REGNUM: return(USE_SHADOW_PC ? (21) : (11));
+ case PC2_REGNUM: return(USE_SHADOW_PC ? (22) : (12));
+ case MMU_REGNUM: return(13);
+ case LRU_REGNUM: return(14);
+ case IPC_REGNUM: return(128);
+ case IPA_REGNUM: return(129);
+ case IPB_REGNUM: return(130);
+ case Q_REGNUM: return(131);
+ case ALU_REGNUM: return(132);
+ case BP_REGNUM: return(133);
+ case FC_REGNUM: return(134);
+ case CR_REGNUM: return(135);
+ case FPE_REGNUM: return(160);
+ case INT_REGNUM: return(161);
+ case FPS_REGNUM: return(162);
+ case EXO_REGNUM:return(164);
+ default:
+ return(255); /* Failure ? */
+ }
+}
+/****************************************************************************/
+/*
+ * Initialize the target debugger (minimon only).
+ */
+static void
+init_target_mm(tstart,tend,dstart,dend,entry,ms_size,rs_size,arg_start)
+ADDR32 tstart,tend,dstart,dend,entry;
+INT32 ms_size,rs_size;
+ADDR32 arg_start;
+{
+ out_msg_buf->init_msg.code = INIT;
+ out_msg_buf->init_msg.length= sizeof(struct init_msg_t)-2*sizeof(INT32);
+ out_msg_buf->init_msg.text_start = tstart;
+ out_msg_buf->init_msg.text_end = tend;
+ out_msg_buf->init_msg.data_start = dstart;
+ out_msg_buf->init_msg.data_end = dend;
+ out_msg_buf->init_msg.entry_point = entry;
+ out_msg_buf->init_msg.mem_stack_size = ms_size;
+ out_msg_buf->init_msg.reg_stack_size = rs_size;
+ out_msg_buf->init_msg.arg_start = arg_start;
+ msg_send_serial(out_msg_buf);
+ expect_msg(INIT_ACK,in_msg_buf,1);
+}
+/****************************************************************************/
+/*
+ * Return a pointer to a string representing the given message code.
+ * Not all messages are represented here, only the ones that we expect
+ * to be called with.
+ */
+static char*
+msg_str(code)
+INT32 code;
+{
+ static char cbuf[32];
+
+ switch (code) {
+ case BKPT_SET_ACK: sprintf(cbuf,"%s (%d)","BKPT_SET_ACK",code); break;
+ case BKPT_RM_ACK: sprintf(cbuf,"%s (%d)","BKPT_RM_ACK",code); break;
+ case INIT_ACK: sprintf(cbuf,"%s (%d)","INIT_ACK",code); break;
+ case READ_ACK: sprintf(cbuf,"%s (%d)","READ_ACK",code); break;
+ case WRITE_ACK: sprintf(cbuf,"%s (%d)","WRITE_ACK",code); break;
+ case ERROR: sprintf(cbuf,"%s (%d)","ERROR",code); break;
+ case HALT: sprintf(cbuf,"%s (%d)","HALT",code); break;
+ default: sprintf(cbuf,"UNKNOWN (%d)",code); break;
+ }
+ return(cbuf);
+}
+/****************************************************************************/
+/*
+ * Selected (not all of them) error codes that we might get.
+ */
+static char*
+error_msg_str(code)
+INT32 code;
+{
+ static char cbuf[50];
+
+ switch (code) {
+ case EMFAIL: return("EMFAIL: unrecoverable error");
+ case EMBADADDR: return("EMBADADDR: Illegal address");
+ case EMBADREG: return("EMBADREG: Illegal register ");
+ case EMACCESS: return("EMACCESS: Could not access memory");
+ case EMBADMSG: return("EMBADMSG: Unknown message type");
+ case EMMSG2BIG: return("EMMSG2BIG: Message to large");
+ case EMNOSEND: return("EMNOSEND: Could not send message");
+ case EMNORECV: return("EMNORECV: Could not recv message");
+ case EMRESET: return("EMRESET: Could not RESET target");
+ case EMCONFIG: return("EMCONFIG: Could not get target CONFIG");
+ case EMSTATUS: return("EMSTATUS: Could not get target STATUS");
+ case EMREAD: return("EMREAD: Could not READ target memory");
+ case EMWRITE: return("EMWRITE: Could not WRITE target memory");
+ case EMBKPTSET: return("EMBKPTSET: Could not set breakpoint");
+ case EMBKPTRM: return("EMBKPTRM: Could not remove breakpoint");
+ case EMBKPTSTAT:return("EMBKPTSTAT: Could not get breakpoint status");
+ case EMBKPTNONE:return("EMBKPTNONE: All breakpoints in use");
+ case EMBKPTUSED:return("EMBKPTUSED: Breakpoints already in use");
+ case EMINIT: return("EMINIT: Could not init target memory");
+ case EMGO: return("EMGO: Could not start execution");
+ case EMSTEP: return("EMSTEP: Could not single step");
+ case EMBREAK: return("EMBREAK: Could not BREAK");
+ case EMCOMMERR: return("EMCOMMERR: Communication error");
+ default: sprintf(cbuf,"error number %d",code); break;
+ } /* end switch */
+
+ return (cbuf);
+}
+/****************************************************************************/
+/*
+ * Receive a message and expect it to be of type msgcode.
+ * Returns 0/1 on failure/success.
+ */
+static int
+expect_msg(msgcode,msg_buf,from_tty)
+INT32 msgcode; /* Msg code we expect */
+union msg_t *msg_buf; /* Where to put the message received */
+int from_tty; /* Print message on error if non-zero */
+{
+ /* DENTER("expect_msg()"); */
+ int retries=0;
+ while(msg_recv_serial(msg_buf) && (retries++<MAX_RETRIES));
+ if (retries >= MAX_RETRIES) {
+ printf("Expected msg %s, ",msg_str(msgcode));
+ printf("no message received!\n");
+ /* DEXIT("expect_msg() failure"); */
+ return(0); /* Failure */
+ }
+
+ if (msg_buf->generic_msg.code != msgcode) {
+ if (from_tty) {
+ printf("Expected msg %s, ",msg_str(msgcode));
+ printf("got msg %s\n",msg_str(msg_buf->generic_msg.code));
+ if (msg_buf->generic_msg.code == ERROR)
+ printf("%s\n",error_msg_str(msg_buf->error_msg.error_code));
+ }
+ /* DEXIT("expect_msg() failure"); */
+ return(0); /* Failure */
+ }
+ /* DEXIT("expect_msg() success"); */
+ return(1); /* Success */
+}
+/****************************************************************************/
+/*
+ * Determine the MiniMon memory space qualifier based on the addr.
+ * FIXME: Can't distinguis I_ROM/D_ROM.
+ * FIXME: Doesn't know anything about I_CACHE/D_CACHE.
+ */
+static int
+mm_memory_space(addr)
+CORE_ADDR *addr;
+{
+ ADDR32 tstart = target_config.I_mem_start;
+ ADDR32 tend = tstart + target_config.I_mem_size;
+ ADDR32 dstart = target_config.D_mem_start;
+ ADDR32 dend = tstart + target_config.D_mem_size;
+ ADDR32 rstart = target_config.ROM_start;
+ ADDR32 rend = tstart + target_config.ROM_size;
+
+ if (((ADDR32)addr >= tstart) && ((ADDR32)addr < tend)) {
+ return I_MEM;
+ } else if (((ADDR32)addr >= dstart) && ((ADDR32)addr < dend)) {
+ return D_MEM;
+ } else if (((ADDR32)addr >= rstart) && ((ADDR32)addr < rend)) {
+ /* FIXME: how do we determine between D_ROM and I_ROM */
+ return D_ROM;
+ } else /* FIXME: what do me do now? */
+ return D_MEM; /* Hmmm! */
+}
+
+/****************************************************************************/
+/*
+ * Define the target subroutine names
+ */
+struct target_ops mm_ops = {
+ "minimon", "Remote AMD/Minimon target",
+ "Remote debug an AMD 290*0 using the MiniMon dbg core on the target",
+ mm_open, mm_close,
+ mm_attach, mm_detach, mm_resume, mm_wait,
+ mm_fetch_registers, mm_store_registers,
+ mm_prepare_to_store, 0, 0, /* conv_to, conv_from */
+ mm_xfer_inferior_memory,
+ mm_files_info,
+ mm_insert_breakpoint, mm_remove_breakpoint, /* Breakpoints */
+ 0, 0, 0, 0, 0, /* Terminal handling */
+ mm_kill, /* FIXME, kill */
+ mm_load,
+ call_function_by_hand,
+ 0, /* lookup_symbol */
+ mm_create_inferior, /* create_inferior */
+ mm_mourn, /* mourn_inferior FIXME */
+ process_stratum, 0, /* next */
+ 1, 1, 1, 1, 1, /* all mem, mem, stack, regs, exec */
+ 0,0, /* sections, sections_end */
+ OPS_MAGIC, /* Always the last thing */
+};
+
+void
+_initialize_remote_mm()
+{
+ add_target (&mm_ops);
+}
+
+#ifdef NO_HIF_SUPPORT
+service_HIF(msg)
+union msg_t *msg;
+{
+ return(0); /* Emulate a failure */
+}
+#endif
--- /dev/null
+/* Host-dependent code for GDB, for NYU Ultra3 running Sym1 OS.
+ Copyright (C) 1988, 1989, 1991 Free Software Foundation, Inc.
+ Contributed by David Wood (wood@nyu.edu) at New York University.
+
+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 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#define DEBUG
+#include <stdio.h>
+#include "defs.h"
+#include "param.h"
+#include "frame.h"
+#include "inferior.h"
+#include "symtab.h"
+#include "value.h"
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <signal.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+
+#include "gdbcore.h"
+
+#include <sys/file.h>
+#include <sys/stat.h>
+#include <sys/ptrace.h>
+
+/* Assumes support for AMD's Binary Compatibility Standard
+ for ptrace(). If you define ULTRA3, the ultra3 extensions to
+ ptrace() are used allowing the reading of more than one register
+ at a time.
+
+ This file assumes KERNEL_DEBUGGING is turned off. This means
+ that if the user/gdb tries to read gr64-gr95 or any of the
+ protected special registers we silently return -1 (see the
+ CANNOT_STORE/FETCH_REGISTER macros). */
+#define ULTRA3
+
+#if !defined (offsetof)
+# define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
+#endif
+
+extern int errno;
+struct ptrace_user pt_struct;
+
+/*
+ * Fetch an individual register (and supply it).
+ * return 0 on success, -1 on failure.
+ * NOTE: Assumes AMD's Binary Compatibility Standard for ptrace().
+ */
+static void
+fetch_register (regno)
+ int regno;
+{
+ char buf[128];
+ int val;
+
+ if (CANNOT_FETCH_REGISTER(regno)) {
+ val = -1;
+ supply_register (regno, &val);
+ } else {
+ errno = 0;
+ val = ptrace (PT_READ_U, inferior_pid, (int*)register_addr(regno,0), 0);
+ if (errno != 0) {
+ sprintf(buf,"reading register %s (#%d)",reg_names[regno],regno);
+ perror_with_name (buf);
+ } else {
+ supply_register (regno, &val);
+ }
+ }
+}
+
+/* Get all available registers from the inferior. Registers that are
+ * defined in REGISTER_NAMES, but not available to the user/gdb are
+ * supplied as -1. This may include gr64-gr95 and the protected special
+ * purpose registers.
+ */
+
+void
+fetch_inferior_registers (regno)
+ int regno;
+{
+ register int i,j,ret_val=0;
+ char buf[128];
+
+ if (regno != -1) {
+ fetch_register (regno);
+ return;
+ }
+
+/* Global Registers */
+#ifdef ULTRA3
+ errno = 0;
+ ptrace (PT_READ_STRUCT, inferior_pid, (int*)register_addr(GR96_REGNUM,0),
+ (int)&pt_struct.pt_gr[0], 32*4);
+ if (errno != 0) {
+ perror_with_name ("reading global registers");
+ ret_val = -1;
+ } else for (regno=GR96_REGNUM, j=0 ; j<32 ; regno++, j++) {
+ supply_register (regno, &pt_struct.pt_gr[j]);
+ }
+#else
+ for (regno=GR96_REGNUM ; !ret_val && regno < GR96_REGNUM+32 ; regno++)
+ fetch_register(regno);
+#endif
+
+/* Local Registers */
+#ifdef ULTRA3
+ errno = 0;
+ ptrace (PT_READ_STRUCT, inferior_pid, (int*)register_addr(LR0_REGNUM,0),
+ (int)&pt_struct.pt_lr[0], 128*4);
+ if (errno != 0) {
+ perror_with_name ("reading local registers");
+ ret_val = -1;
+ } else for (regno=LR0_REGNUM, j=0 ; j<128 ; regno++, j++) {
+ supply_register (regno, &pt_struct.pt_lr[j]);
+ }
+#else
+ for (regno=LR0_REGNUM ; !ret_val && regno < LR0_REGNUM+128 ; regno++)
+ fetch_register(regno);
+#endif
+
+/* Special Registers */
+ fetch_register(GR1_REGNUM);
+ fetch_register(CPS_REGNUM);
+ fetch_register(PC_REGNUM);
+ fetch_register(NPC_REGNUM);
+ fetch_register(PC2_REGNUM);
+ fetch_register(IPC_REGNUM);
+ fetch_register(IPA_REGNUM);
+ fetch_register(IPB_REGNUM);
+ fetch_register(Q_REGNUM);
+ fetch_register(BP_REGNUM);
+ fetch_register(FC_REGNUM);
+
+/* Fake any registers that are in REGISTER_NAMES, but not available to gdb */
+ registers_fetched();
+}
+
+/* Store our register values back into the inferior.
+ * If REGNO is -1, do this for all registers.
+ * Otherwise, REGNO specifies which register (so we can save time).
+ * NOTE: Assumes AMD's binary compatibility standard.
+ */
+
+int
+store_inferior_registers (regno)
+ int regno;
+{
+ register unsigned int regaddr;
+ char buf[80];
+
+ if (regno >= 0)
+ {
+ if (CANNOT_STORE_REGISTER(regno))
+ return 0; /* Pretend success */
+ regaddr = register_addr (regno, 0);
+ errno = 0;
+ ptrace (PT_WRITE_U, inferior_pid,(int*)regaddr,read_register(regno));
+ if (errno != 0)
+ {
+ sprintf (buf, "writing register %s (#%d)", reg_names[regno],regno);
+ perror_with_name (buf);
+ }
+ }
+ else
+ {
+#ifdef ULTRA3
+ pt_struct.pt_gr1 = read_register(GR1_REGNUM);
+ for (regno = GR96_REGNUM; regno < GR96_REGNUM+32; regno++)
+ pt_struct.pt_gr[regno] = read_register(regno);
+ for (regno = LR0_REGNUM; regno < LR0_REGNUM+128; regno++)
+ pt_struct.pt_gr[regno] = read_register(regno);
+ errno = 0;
+ ptrace (PT_WRITE_STRUCT, inferior_pid, (int*)register_addr(GR1_REGNUM,0),
+ (int)&pt_struct.pt_gr1,(1*32*128)*4);
+ if (errno != 0)
+ {
+ sprintf (buf, "writing all local/global registers");
+ perror_with_name (buf);
+ }
+ pt_struct.pt_psr = read_register(CPS_REGNUM);
+ pt_struct.pt_pc0 = read_register(NPC_REGNUM);
+ pt_struct.pt_pc1 = read_register(PC_REGNUM);
+ pt_struct.pt_pc2 = read_register(PC2_REGNUM);
+ pt_struct.pt_ipc = read_register(IPC_REGNUM);
+ pt_struct.pt_ipa = read_register(IPA_REGNUM);
+ pt_struct.pt_ipb = read_register(IPB_REGNUM);
+ pt_struct.pt_q = read_register(Q_REGNUM);
+ pt_struct.pt_bp = read_register(BP_REGNUM);
+ pt_struct.pt_fc = read_register(FC_REGNUM);
+ errno = 0;
+ ptrace (PT_WRITE_STRUCT, inferior_pid, (int*)register_addr(CPS_REGNUM,0),
+ (int)&pt_struct.pt_psr,(10)*4);
+ if (errno != 0)
+ {
+ sprintf (buf, "writing all special registers");
+ perror_with_name (buf);
+ return -1;
+ }
+#else
+ store_inferior_registers(GR1_REGNUM);
+ for (regno=GR96_REGNUM ; regno<GR96_REGNUM+32 ; regno++)
+ store_inferior_registers(regno);
+ for (regno=LR0_REGNUM ; regno<LR0_REGNUM+128 ; regno++)
+ store_inferior_registers(regno);
+ store_inferior_registers(CPS_REGNUM);
+ store_inferior_registers(PC_REGNUM);
+ store_inferior_registers(NPC_REGNUM);
+ store_inferior_registers(PC2_REGNUM);
+ store_inferior_registers(IPC_REGNUM);
+ store_inferior_registers(IPA_REGNUM);
+ store_inferior_registers(IPB_REGNUM);
+ store_inferior_registers(Q_REGNUM);
+ store_inferior_registers(BP_REGNUM);
+ store_inferior_registers(FC_REGNUM);
+#endif /* ULTRA3 */
+ }
+ return 0;
+}
+
+/*
+ * Read AMD's Binary Compatibilty Standard conforming core file.
+ * struct ptrace_user is the first thing in the core file
+ */
+void
+fetch_core_registers ()
+{
+ register int regno;
+ int val;
+ char buf[4];
+
+ for (regno = 0 ; regno < NUM_REGS; regno++) {
+ if (!CANNOT_FETCH_REGISTER(regno)) {
+ val = bfd_seek (core_bfd, register_addr (regno, 0), 0);
+ if (val < 0 || (val = bfd_read (buf, sizeof buf, 1, core_bfd)) < 0) {
+ char * buffer = (char *) alloca (strlen (reg_names[regno]) + 35);
+ strcpy (buffer, "Reading core register ");
+ strcat (buffer, reg_names[regno]);
+ perror_with_name (buffer);
+ }
+ supply_register (regno, buf);
+ }
+ }
+
+ /* Fake any registers that are in REGISTER_NAMES, but not available to gdb */
+ registers_fetched();
+}
+
+
+/*
+ * Takes a register number as defined in tm.h via REGISTER_NAMES, and maps
+ * it to an offset in a struct ptrace_user defined by AMD's BCS.
+ * That is, it defines the mapping between gdb register numbers and items in
+ * a struct ptrace_user.
+ * A register protection scheme is set up here. If a register not
+ * available to the user is specified in 'regno', then an address that
+ * will cause ptrace() to fail is returned.
+ */
+unsigned int
+register_addr (regno,blockend)
+ unsigned int regno;
+ char *blockend;
+{
+ if ((regno >= LR0_REGNUM) && (regno < LR0_REGNUM + 128)) {
+ return(offsetof(struct ptrace_user,pt_lr[regno-LR0_REGNUM]));
+ } else if ((regno >= GR96_REGNUM) && (regno < GR96_REGNUM + 32)) {
+ return(offsetof(struct ptrace_user,pt_gr[regno-GR96_REGNUM]));
+ } else {
+ switch (regno) {
+ case GR1_REGNUM: return(offsetof(struct ptrace_user,pt_gr1));
+ case CPS_REGNUM: return(offsetof(struct ptrace_user,pt_psr));
+ case NPC_REGNUM: return(offsetof(struct ptrace_user,pt_pc0));
+ case PC_REGNUM: return(offsetof(struct ptrace_user,pt_pc1));
+ case PC2_REGNUM: return(offsetof(struct ptrace_user,pt_pc2));
+ case IPC_REGNUM: return(offsetof(struct ptrace_user,pt_ipc));
+ case IPA_REGNUM: return(offsetof(struct ptrace_user,pt_ipa));
+ case IPB_REGNUM: return(offsetof(struct ptrace_user,pt_ipb));
+ case Q_REGNUM: return(offsetof(struct ptrace_user,pt_q));
+ case BP_REGNUM: return(offsetof(struct ptrace_user,pt_bp));
+ case FC_REGNUM: return(offsetof(struct ptrace_user,pt_fc));
+ default:
+ fprintf_filtered(stderr,"register_addr():Bad register %s (%d)\n",
+ reg_names[regno],regno);
+ return(0xffffffff); /* Should make ptrace() fail */
+ }
+ }
+}
+
+
+/* Assorted operating system circumventions */
+
+#ifdef SYM1
+
+/* FIXME: Kludge this for now. It really should be system call. */
+int
+getpagesize()
+{ return(8192); }
+
+/* FIXME: Fake out the fcntl() call, which we don't have. */
+fcntl(fd, cmd, arg)
+int fd, cmd, arg;
+{
+
+ switch (cmd) {
+ case F_GETFL: return(O_RDONLY); break;
+ default:
+ printf("Ultra3's fcntl() failing, cmd = %d.\n",cmd);
+ return(-1);
+ }
+}
+
+
+/*
+ * 4.2 Signal support, requires linking with libjobs.
+ */
+static int _SigMask;
+#define sigbit(s) (1L << ((s)-1))
+
+init_SigMask()
+{
+ /* Taken from the sym1 kernel in machdep.c:startup() */
+ _SigMask = sigbit (SIGTSTP) | sigbit (SIGTTOU) | sigbit (SIGTTIN) |
+ sigbit (SIGCHLD) | sigbit (SIGTINT);
+}
+
+sigmask(signo)
+ int signo;
+{
+ return (1 << (signo-1));
+}
+
+sigsetmask(sigmask)
+unsigned int sigmask;
+{
+ int i, mask = 1;
+ int lastmask = _SigMask;
+
+ for (i=0 ; i<NSIG ; i++) {
+ if (sigmask & mask) {
+ if (!(_SigMask & mask)) {
+ sighold(i+1);
+ _SigMask |= mask;
+ }
+ } else if (_SigMask & mask) {
+ sigrelse(i+1);
+ _SigMask &= ~mask;
+ }
+ mask <<= 1;
+ }
+ return (lastmask);
+}
+
+sigblock(sigmask)
+unsigned int sigmask;
+{
+ int i, mask = 1;
+ int lastmask = _SigMask;
+
+ for (i=0 ; i<NSIG ; i++) {
+ if ((sigmask & mask) && !(_SigMask & mask)) {
+ sighold(i+1);
+ _SigMask |= mask;
+ }
+ mask <<= 1;
+ }
+ return (lastmask);
+}
+#endif /* SYM1 */
+
+
+/* Initialization code for this module. */
+
+_initialize_ultra3 ()
+{
+#ifdef SYM1
+ init_SigMask();
+#endif
+}
--- /dev/null
+/* Definitions to host GDB on an IBM RT/PC running BSD Unix.
+ Copyright (C) 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
+ Contributed by David Wood @ New York University (wood@lab.ultra.nyu.edu).
+
+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 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* Get rid of any system-imposed stack limit if possible. */
+#define SET_STACK_LIMIT_HUGE
+
+/* This machine is most significant byte first */
+#define HOST_BYTE_ORDER BIG_ENDIAN
+
+/* This OS has the wait structure */
+#define HAVE_WAIT_STRUCT
+
+/* This unix does not have a libc with vprintf */
+#define MISSING_VPRINTF
+
+#ifdef HOSTING_ONLY
+/*
+ * This next two defines are to get GDB up and running as a host to
+ * do remote debugging. I know there is a gdb for the RT, but there wasn't
+ * an xconfig/rt* file.
+ */
+#define KERNEL_U_ADDR_BSD /* This may be correct, but hasn't been tested */
+#define REGISTER_U_ADDR(a,b,c) \
+ (printf("GDB can not debug IBM RT/PC BSD executables (yet)\n"),\
+ quit(),0)
+#else
+# include "GDB for the RT is not included in the distribution"
+#endif
+
--- /dev/null
+/* Host definitions for GDB running on a 29k NYU Ultracomputer
+ Copyright (C) 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
+ Contributed by David Wood (wood@lab.ultra.nyu.edu).
+
+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 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* Here at NYU we have what we call an ULTRA3 PE board. So
+ ifdefs for ULTRA3 are my doing. At this point in time,
+ I don't know of any other Unixi running on the 29k. */
+
+#define HOST_BYTE_ORDER BIG_ENDIAN
+
+#define HAVE_WAIT_STRUCT
+
+#ifndef L_SET
+# define L_SET 0 /* set the seek pointer */
+# define L_INCR 1 /* increment the seek pointer */
+# define L_XTND 2 /* extend the file size */
+#endif
+
+#ifndef O_RDONLY
+# define O_RDONLY 0
+# define O_WRONLY 1
+# define O_RDWR 2
+#endif
+
+#ifndef F_OK
+# define R_OK 4
+# define W_OK 2
+# define X_OK 1
+# define F_OK 0
+#endif
+
+/* For dirbuf[] in main.c */
+#ifndef MAXPATHLEN
+#define MAXPATHLEN (1024)
+#endif
+
+/* Get rid of any system-imposed stack limit if possible */
+
+#define SET_STACK_LIMIT_HUGE
+
+/* Override copies of {fetch,store}_inferior_registers in infptrace.c. */
+#define FETCH_INFERIOR_REGISTERS
+
+/* If we ever *do* end up using the standard fetch_inferior_registers,
+ this is the right value for U_REGS_OFFSET. */
+#define U_REGS_OFFSET 0
+
+/* System doesn't provide a list of signal names. */
+#define SYS_SIGLIST_MISSING
+
+/* System doesn't provide siginterrupt(). */
+#define NO_SIGINTERRUPT
+
+/* System uses a `short' to hold a process group ID. */
+#define SHORT_PGRP
+
+/* No vfork in this system. */
+#define vfork() fork()
projects / binutils-gdb.git / commitdiff