gdb-4.18-bdm-m68k.patch

WaitForSingleObject 摩托罗拉的68k源程序

diff -urN gdb-4.18/gdb/Makefile.in gdb-4.18-new/gdb/Makefile.in
--- gdb-4.18/gdb/Makefile.in	Wed Apr  7 15:00:43 1999
+++ gdb-4.18-new/gdb/Makefile.in	Thu Aug 19 14:18:02 1999
@@ -949,5 +949,5 @@
 	vax-tdep.c \
-	vx-share/xdr_ld.c vx-share/xdr_ptrace.c vx-share/xdr_rdb.c \
+	vx-share/xdr_ld.c vx-share/xdr_ptrace.c vx-share/xdr_rdb.c remote-m68k-bdm.c\
 	win32-nat.c \
 udip2soc.o: $(srcdir)/29k-share/udi/udip2soc.c $(udiheaders)
 	$(CC) -c $(INTERNAL_CFLAGS) $(srcdir)/29k-share/udi/udip2soc.c
@@ -1392,6 +1392,9 @@
 
 remote-mm.o: remote-mm.c $(bfd_h) $(wait_h) $(defs_h) $(inferior_h) \
 	minimon.h target.h terminal.h gdb_string.h
+
+remote-m68k-bdm.o: remote-m68k-bdm.c $(bfd_h) $(wait_h) $(defs_h) $(inferior_h) \
+	$(gdbcore_h) target.h
 
 remote-nindy.o: remote-nindy.c $(floatformat_h) $(wait_h) $(command_h) \
 	$(defs_h) $(gdbcore_h) $(inferior_h) \
diff -urN gdb-4.18/gdb/config/m68k/bdm.mt gdb-4.18-new/gdb/config/m68k/bdm.mt
--- gdb-4.18/gdb/config/m68k/bdm.mt	Wed Dec 31 18:00:00 1969
+++ gdb-4.18-new/gdb/config/m68k/bdm.mt	Wed Dec  8 04:25:12 1999
@@ -0,0 +1,5 @@
+# Target: m68k bdm interface for the CPU32 and Coldfire processors.
+#
+TM_CLIBS= -lBDM
+TDEPFILES= m68k-tdep.o remote-m68k-bdm.o
+TM_FILE= tm-bdm.h
diff -urN gdb-4.18/gdb/config/m68k/tm-bdm.h gdb-4.18-new/gdb/config/m68k/tm-bdm.h
--- gdb-4.18/gdb/config/m68k/tm-bdm.h	Wed Dec 31 18:00:00 1969
+++ gdb-4.18-new/gdb/config/m68k/tm-bdm.h	Thu Aug 19 14:18:02 1999
@@ -0,0 +1,87 @@
+/*
+ * Target machine description for Coldfire BDM (Moto 5200)
+ * Copyright (C) 1995  W. Eric Norum
+ * Copyright (C) 1998  Chris Johns ([e-mail])
+ *
+ * Based on:
+ *  1. `A Background Debug Mode Driver Package for Motorola's
+ *     16- and 32-Bit Microcontrollers', Scott Howard, Motorola
+ *     Canada, 1993.
+ *  2. `Linux device driver for public domain BDM Interface',
+ *     M. Schraut, Technische Universitaet Muenchen, Lehrstuhl
+ *     fuer Prozessrechner, 1995.
+ *  3. BDM support for gdb by W. Eric Norum
+ *     Saskatchewan Accelerator Laboratory
+ *     University of Saskatchewan
+ *     107 North Road
+ *     Saskatoon, Saskatchewan, CANADA
+ *     S7N 5C6
+ * 
+ * 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.
+ */
+
+/*
+ * Coldfire does it for us if we use PCC to get the PC
+ */
+#define	DECR_PC_AFTER_BREAK	0
+
+/*
+ * We have to control this directly as the CPU32 and Coldfire have different
+ * breakpoint opcodes.
+ */
+#define BREAKPOINT_FROM_PC m68k_bdm_breakpoint_from_pc
+
+/*
+ * Include the generic stuff
+ */
+#include "m68k/tm-m68k.h"
+
+/*
+ * Override some of the generic definitions
+ */
+
+/*
+ * we need 40 registers for the CPU32 and Coldfire:
+ *   8 data registers
+ *   8 address registers
+ *   2 other registers (PC, PS)
+ *  22 special registers (actual set depends on architecture)
+ *   0 floating point registers
+ */
+#undef NUM_REGS
+#undef REGISTER_BYTES
+#define NUM_REGS    40
+#define REGISTER_BYTES (16*4 + 2*4 + 22*4)
+
+#undef REGISTER_NAMES
+#define REGISTER_NAME(i) bdm_register_name(i)
+extern const char *bdm_register_name(int i);
+
+#undef FP0_REGNUM
+#undef FPC_REGNUM
+#undef FPS_REGNUM
+#undef FPI_REGNUM
+#define FP0_REGNUM 40                   /* Floating point register 0 */
+#define FPC_REGNUM FP0_REGNUM + 8       /* 68881 control register */
+#define FPS_REGNUM FPC_REGNUM + 1       /* 68881 status register */
+#define FPI_REGNUM FPS_REGNUM + 1       /* 68881 iaddr register */
+
+/*
+ * The other definitions and macros don't need to be changed:
+ *    a) The Coldfire has no floating point registers
+ *    b) The REGISTER_BYTES_OK macro isn't used
+ */
diff -urN gdb-4.18/gdb/configure.tgt gdb-4.18-new/gdb/configure.tgt
--- gdb-4.18/gdb/configure.tgt	Wed Apr  7 15:00:17 1999
+++ gdb-4.18-new/gdb/configure.tgt	Thu Aug 19 14:18:02 1999
@@ -149,6 +149,7 @@
 m68*-*bug-*)            gdb_target=monitor ;;
 m68*-monitor-*)         gdb_target=monitor ;;
 m68*-est-*)		gdb_target=monitor ;;
+m68*-bdm-*)		gdb_target=bdm ;;
 m68*-*-aout*)		gdb_target=monitor ;;
 m68*-*-coff*)		gdb_target=monitor ;;
 m68*-*-elf*)		gdb_target=monitor ;;
diff -urN gdb-4.18/gdb/doc/all-cfg.texi gdb-4.18-new/gdb/doc/all-cfg.texi
--- gdb-4.18/gdb/doc/all-cfg.texi	Fri Feb  5 19:26:05 1999
+++ gdb-4.18-new/gdb/doc/all-cfg.texi	Thu Aug 19 14:18:02 1999
@@ -39,6 +39,9 @@
 @c Intel 960 target:
 @set I960
 @c
+@c Motorola BDM target:
+@set BDM
+@c
 @c Tandem ST2000 (phone switch) target:
 @set ST2000
 @c
diff -urN gdb-4.18/gdb/doc/gdb.texinfo gdb-4.18-new/gdb/doc/gdb.texinfo
--- gdb-4.18/gdb/doc/gdb.texinfo	Thu Feb 11 20:02:45 1999
+++ gdb-4.18-new/gdb/doc/gdb.texinfo	Thu Aug 19 14:18:02 1999
@@ -413,6 +413,10 @@
 * Simulator::                   Simulated CPU target
 @end ifset
 
+@ifset BDM
+* Motorola BDM Target::         @value{GDBN} and Motorola 68k/Coldfire BDM targets
+@end ifset
+
 Controlling @value{GDBN}
 
 * Prompt::                      Prompt
@@ -8527,6 +8531,12 @@
 @item target bug @var{dev}
 BUG monitor, running on a MVME187 (m88k) board.
 
+@ifset BDM
+@kindex target bdm
+Background Debug Mode interface to Motorola 68k/Coldfire machine.
+@xref{Motorola BDM Target, ,@value{GDBN} and Motorola 68k/Coldfire BDM}.
+@end ifset
+
 @kindex target cpu32bug
 @item target cpu32bug @var{dev}
 CPU32BUG monitor, running on a CPU32 (M68K) board.
@@ -8819,6 +8829,11 @@
 @ifset SIMS
 * Simulator::                   Simulated CPU target
 @end ifset
+@ifset BDM
+* Motorola BDM Target::         @value{GDBN} and Motorola 68k/Coldfire Background Debug 
+Mode
+@end ifset
+
 @end menu
 
 @include remote.texi
diff -urN gdb-4.18/gdb/doc/remote.texi gdb-4.18-new/gdb/doc/remote.texi
--- gdb-4.18/gdb/doc/remote.texi	Fri Feb  5 19:28:34 1999
+++ gdb-4.18-new/gdb/doc/remote.texi	Thu Aug 19 14:18:02 1999
@@ -1705,4 +1705,101 @@
 simulated clock ticks.
 @end ifset
 
+
+@ifset BDM
+@node Motorola BDM Target
+@subsection @value{GDBN} and Motorola BDM
+
+@cindex BDM
+@cindex CPU32
+@cindex Coldfire
+Background Debug Mode (@dfn{BDM}) provides a full set of debug options
+including the ability to:
+@itemize @bullet
+@item Insert breakpoints
+@item Single-step
+@item Display register contents
+@item Display memory contents
+@item Modify register contents
+@item Modify memory contents
+@end itemize
+
+A small interface circuit connects the BDM interface port on the
+target machine to a parallel printer port on the debugging host.
+A target system can be configured and a program downloaded and
+executed with no bootstrap memory on the target machine and no other
+connection between the debugging host and the target machine.
+
+The @code{target} command tells @value{GDBN}
+to debug a program running on a target machine
+@xref{Target Commands, ,Commands for managing targets}.
+For example, the following command tells @value{GDBN} to use a BDM
+interface connected to the @code{LPT0} parallel port:
+@example
+target bdm /dev/bdm0
+@end example
+
+Do not attempt to use the parallel port for any other purpose while
+@value{GDBN} is using it to control a BDM target.
+
+Once the BDM target has been selected a few other commands become
+available:
+
+@table @code
+@item bdm_reset
+@kindex bdm_reset
+Reset the target machine and enable BDM operation in the target.
+
+@item bdm_restart
+@kindex bdm_restart
+Reset the target machine and disable BDM operation in the target.
+This command is useful only if the target machine has some kind of
+bootstrap memory installed.
+
+@item bdm_status
+@kindex bdm_status
+Print the status of the target machine and the BDM interface.
+
+@item bdm_setdelay @var{N}
+@kindex bdm_setdelay
+Some BDM interface circuits can not handle high-speed data transfer.
+This command lets you insert a delay between each BDM clock.
+The larger the value of @var{N}, the longer the delay.
+On most machines the default delay of @var{0} should work just fine.
+
+@item bdm_setdebug @var{N}
+@kindex bdm_setdebug
+Setting the level (@var{N}) to a non-zero value turns on
+debugging messages in the BDM support library.
+
+@item bdm_setdriverdebug @var{N}
+@kindex bdm_setdriverdebug
+Setting the level (@var{N}) to a non-zero value turns on
+debugging messages in the BDM device driver.
+
+@end table
+
+The registers which can be displayed and modified are:
+@itemize @bullet
+@item The data registers: @code{$d0}-@code{$d7}
+@item The address registers: @code{$a0}-@code{$a5}, @code{$fp}, @code{$sp}
+@item The program counter: @code{$pc}
+@item The status register: @code{$ps}
+@item The program counter at the beginning of the most recently executed
+instruction: @code{$pcc}
+@item The user stack pointer: @code{$usp}
+@item The supervisor stack pointer: @code{$ssp}
+@item The source function code register: @code{$sfc}
+@item The destinaton function code register: @code{$dfc}
+@item The vector base register: @code{$vbr}
+@item The fault address register: @code{$far}
+@item The BDM temporary register: @code{$atemp}
+@item The module base address register: @code{$mbar}
+@end itemize
+
+Target processor interrupts are disabled during single-step (step, next,
+stepi, nexti) operations.
+
+@end ifset
+
 @c need to add much more detail about sims!
diff -urN gdb-4.18/gdb/findvar.c gdb-4.18-new/gdb/findvar.c
--- gdb-4.18/gdb/findvar.c	Fri Jan 29 03:46:03 1999
+++ gdb-4.18-new/gdb/findvar.c	Tue Dec  7 13:23:36 1999
@@ -253,6 +253,7 @@
      LONGEST val;
 {
   if( TARGET_BYTE_ORDER == BIG_ENDIAN
+      && HOST_BYTE_ORDER != LITTLE_ENDIAN
       &&  len != sizeof( LONGEST )) {
     /* On big-endian machines (e.g., HPPA 2.0, narrow mode)
      * just letting this fall through to the call below will
diff -urN gdb-4.18/gdb/remote-m68k-bdm.c gdb-4.18-new/gdb/remote-m68k-bdm.c
--- gdb-4.18/gdb/remote-m68k-bdm.c	Wed Dec 31 18:00:00 1969
+++ gdb-4.18-new/gdb/remote-m68k-bdm.c	Thu Aug 19 14:18:02 1999
@@ -0,0 +1,1241 @@
+/*
+ * Motorola Background Debug Mode Target
+ * Copyright (C) 1995  W. Eric Norum
+ * Copyright (C) 1998  Chris Johns ([e-mail])
+ *
+ * Based on:
+ *  1. `A Background Debug Mode Driver Package for Motorola's
+ *     16- and 32-Bit Microcontrollers', Scott Howard, Motorola
+ *     Canada, 1993.
+ *  2. `Linux device driver for public domain BDM Interface',
+ *     M. Schraut, Technische Universitaet Muenchen, Lehrstuhl
+ *     fuer Prozessrechner, 1995.
+ *  3. BDM support for gdb by W. Eric Norum
+ *     Saskatchewan Accelerator Laboratory
+ *     University of Saskatchewan
+ *     107 North Road
+ *     Saskatoon, Saskatchewan, CANADA
+ *     S7N 5C6
+ *  4. Coldfire support added by C Johns.
+ *
+ * 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.
+ *
+ * W. Eric Norum
+ * Saskatchewan Accelerator Laboratory
+ * University of Saskatchewan
+ * 107 North Road
+ * Saskatoon, Saskatchewan, CANADA
+ * S7N 5C6
+ * 
+ * [e-mail]
+ *
+ * Coldfire support by:
+ * Chris Johns
+ * Objective Design Systems
+ * 35 Cairo Street
+ * Cammeray, Sydney, 2062, Australia
+ *
+ * [e-mail]
+ */
+
+/*
+ * $Revision: 1.1 $    $Date: 2004/03/28 23:13:10 $   $Author: codewiz $
+ */
+
+#include "defs.h"
+#include "gdbcore.h"
+#include "target.h"
+#include "wait.h"
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <signal.h>
+#include <string.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+#include "command.h"
+#include "inferior.h"
+#include "value.h"
+#include "breakpoint.h"
+#include "BDMlib.h"
+
+extern struct target_ops bdm_ops;	/* Forward declaration */
+
+/*
+ * The name of the BDM driver special file
+ */
+static char *dev_name;
+static int cpu_type;
+
+/*
+ * The different register names for the processors.
+ */
+static const char *cpu32_reg_names[NUM_REGS] = {
+ "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7",
+ "a0", "a1", "a2", "a3", "a4", "a5", "fp", "sp",
+ "ps", "pc",
+ "pcc", "usp", "ssp", "sfc", "dfc", "atemp", "far",
+ "vbr",
+ NULL, NULL, NULL, NULL,
+ "mbar",
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+};
+
+static const char *cf_reg_names[NUM_REGS] = {
+ "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7",
+ "a0", "a1", "a2", "a3", "a4", "a5", "fp", "sp",
+ "ps", "pc",
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ "vbr",
+ "cacr", "acr0", "acr1", "rambar",
+ "mbar",
+ "csr", "aatr", "tdr", "pbr", "pbmr", "abhr", "ablr", "dbr", "dbmr",
+};
+
+static const char **bdm_reg_names = cpu32_reg_names;
+
+const char *bdm_register_name(int i)
+{
+	if ((i < 0) || (i >= NUM_REGS))
+		return NULL;
+	return bdm_reg_names[i];
+}
+
+static int reg_to_dev_num[] = 
+{ BDM_REG_SR, 
+  BDM_REG_RPC,
+  BDM_REG_PCC,
+  BDM_REG_USP,
+  BDM_REG_SSP,
+  BDM_REG_SFC,
+  BDM_REG_DFC,
+  BDM_REG_ATEMP,
+  BDM_REG_FAR,
+  BDM_REG_VBR,
+  BDM_REG_CACR,
+  BDM_REG_ACR0,
+  BDM_REG_ACR1,
+  BDM_REG_RAMBAR,
+  BDM_REG_MBAR,
+  BDM_REG_CSR,
+  BDM_REG_AATR,
+  BDM_REG_TDR,
+  BDM_REG_PBR,
+  BDM_REG_PBMR,
+  BDM_REG_ABHR,
+  BDM_REG_ABLR,
+  BDM_REG_DBR,
+  BDM_REG_DBMR
+ };
+
+/*
+ * The name of the most recently loaded program
+ */
+static char *bdm_prog_loaded;
+
+/*
+ * default delay for interface
+ */
+#define	BDM_DEFAULT_DELAY	0
+static int bdm_delay = -1;
+
+/*
+ * does gdb wait or not, only valid for a Coldfire processor
+ */
+static int bdm_gdb_no_wait = 0;
+
+/*
+ * Hold BDM ATEMP register (CPU32 only).
+ */
+static unsigned long atemp;
+static int haveAtemp;
+
+/*
+ * Forward declarations
+ */
+static void bdm_load (char *, int);
+
+/*
+ * give target time to come up after reset
+ * time in usec
+ */
+#define	TIME_TO_COME_UP	60000
+
+/*
+ * Downloader routines
+ */
+static int downLoaderReturn;
+static int downLoaderFirst;
+static unsigned long downLoadBaseAddress, downLoadStartAddress;
+static int bdmDebugLevel;
+static const char *downloadErrorString;
+
+static void
+downloadSection (bfd *abfd, sec_ptr sec, PTR ignore)
+{
+	unsigned long dfc;
+	unsigned long address;
+	unsigned long nleft;
+	int count;
+	file_ptr offset;
+	char cbuf[1024];
+
+	/*
+	 * See if the section needs loading
+	 */
+	if (bdmDebugLevel)
+		printf_filtered ("Section flags:%#x", bfd_get_section_flags (abfd, sec));
+	if ((downLoaderReturn < 0) ||
+			((bfd_get_section_flags (abfd, sec) & SEC_HAS_CONTENTS) == 0) ||
+			((bfd_get_section_flags (abfd, sec) & SEC_LOAD) == 0))
+		return;
+	address = bfd_section_lma (abfd, sec);
+	if (bdmDebugLevel)
+		printf_filtered ("Section address:%#x", address);
+	if (downLoaderFirst && (bfd_get_section_flags (abfd, sec) & SEC_CODE)) {