ARM: "armv4_5" command prefix becomes "arm"

Rename the "armv4_5" command prefix to straight "arm" so it makes
more sense for newer cores.  Add a simple compatibility script.

Make sure all the commands give the same "not an ARM" diagnostic
message (and fail properly) when called against non-ARM targets.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>

NEWS

@@ -8,6 +8,8 @@ JTAG Layer:
 
 Boundary Scan:
 Target Layer:
+	ARM
+		- renamed "armv4_5" command prefix as "arm"
 	ARM11
 		- Preliminary ETM and ETB hookup
 		- accelerated "flash erase_check"

doc/openocd.texi

@@ -5515,16 +5515,14 @@ Reports whether the capture clock is locked or not.
 @end deffn
 
 
-@section ARMv4 and ARMv5 Architecture
-@cindex ARMv4
-@cindex ARMv5
+@section Generic ARM
+@cindex ARM
 
-These commands are specific to ARM architecture v4 and v5,
-including all ARM7 or ARM9 systems and Intel XScale.
+These commands should be available on all ARM processors.
 They are available in addition to other core-specific
 commands that may be available.
 
-@deffn Command {armv4_5 core_state} [@option{arm}|@option{thumb}]
+@deffn Command {arm core_state} [@option{arm}|@option{thumb}]
 Displays the core_state, optionally changing it to process
 either @option{arm} or @option{thumb} instructions.
 The target may later be resumed in the currently set core_state.
@@ -5532,7 +5530,7 @@ The target may later be resumed in the currently set core_state.
 that is not currently supported in OpenOCD.)
 @end deffn
 
-@deffn Command {armv4_5 disassemble} address [count [@option{thumb}]]
+@deffn Command {arm disassemble} address [count [@option{thumb}]]
 @cindex disassemble
 Disassembles @var{count} instructions starting at @var{address}.
 If @var{count} is not specified, a single instruction is disassembled.
@@ -5543,7 +5541,7 @@ else ARM (32-bit) instructions are used.
 those instructions are not currently understood by OpenOCD.)
 @end deffn
 
-@deffn Command {armv4_5 reg}
+@deffn Command {arm reg}
 Display a table of all banked core registers, fetching the current value from every
 core mode if necessary. OpenOCD versions before rev. 60 didn't fetch the current
 register value.

src/helper/startup.tcl

@@ -142,6 +142,15 @@ proc ocd_gdb_restart {target_id} {
 	reset halt
 }
 
+#########
+
+# Temporary migration aid.  May be removed starting in January 2011.
+proc armv4_5 params {
+	echo "DEPRECATED! use 'arm $params' not 'armv4_5 $params'"
+	arm $params
+}
+
+#########
 
 # This reset logic may be overridden by board/target/... scripts as needed
 # to provide a reset that, if possible, is close to a power-up reset.

src/target/armv4_5.c

@@ -363,10 +363,10 @@ COMMAND_HANDLER(handle_armv4_5_reg_command)
 	struct target *target = get_current_target(cmd_ctx);
 	struct armv4_5_common_s *armv4_5 = target_to_armv4_5(target);
 
-	if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC)
+	if (!is_arm(armv4_5))
 	{
-		command_print(cmd_ctx, "current target isn't an ARMV4/5 target");
-		return ERROR_OK;
+		command_print(cmd_ctx, "current target isn't an ARM");
+		return ERROR_FAIL;
 	}
 
 	if (target->state != TARGET_HALTED)
@@ -412,10 +412,10 @@ COMMAND_HANDLER(handle_armv4_5_core_state_command)
 	struct target *target = get_current_target(cmd_ctx);
 	struct armv4_5_common_s *armv4_5 = target_to_armv4_5(target);
 
-	if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC)
+	if (!is_arm(armv4_5))
 	{
-		command_print(cmd_ctx, "current target isn't an ARMV4/5 target");
-		return ERROR_OK;
+		command_print(cmd_ctx, "current target isn't an ARM");
+		return ERROR_FAIL;
 	}
 
 	if (argc > 0)
@@ -471,7 +471,7 @@ COMMAND_HANDLER(handle_armv4_5_disassemble_command)
 	default:
 usage:
 		command_print(cmd_ctx,
-			"usage: armv4_5 disassemble <address> [<count> ['thumb']]");
+			"usage: arm disassemble <address> [<count> ['thumb']]");
 		count = 0;
 		retval = ERROR_FAIL;
 	}
@@ -510,9 +510,9 @@ int armv4_5_register_commands(struct command_context *cmd_ctx)
 {
 	struct command *armv4_5_cmd;
 
-	armv4_5_cmd = register_command(cmd_ctx, NULL, "armv4_5",
+	armv4_5_cmd = register_command(cmd_ctx, NULL, "arm",
 			NULL, COMMAND_ANY,
-			"armv4/5 specific commands");
+			"generic ARM commands");
 
 	register_command(cmd_ctx, armv4_5_cmd, "reg",
 			handle_armv4_5_reg_command, COMMAND_EXEC,

tcl/board/mini2440.cfg

@@ -292,7 +292,7 @@ proc load_uboot { } {
 proc s {} {
         step
         reg
-        armv4_5 disassemble 0x33F80068 0x10
+        arm disassemble 0x33F80068 0x10
 }
 
 proc help_2440 {} {

tcl/target/lpc1768.cfg

@@ -35,7 +35,7 @@ $_TARGETNAME configure -work-area-phys 0x10000000 -work-area-size 0x8000 -work-a
 
 $_TARGETNAME configure -event reset-init {
 	# Force target into ARM state
-	armv4_5 core_state arm
+	arm core_state arm
 	#do not remap 0x0000-0x0020 to anything but the flash
 #	mwb 0xE01FC040 0x01
 	mwb 0xE000ED08 0x00

tcl/target/lpc2148.cfg

@@ -39,7 +39,7 @@ $_TARGETNAME configure -work-area-phys 0x40000000 -work-area-size 0x4000 -work-a
 
 $_TARGETNAME configure -event reset-init {
 	# Force target into ARM state
-	armv4_5 core_state arm
+	arm core_state arm
 
 	# Do not remap 0x0000-0x0020 to anything but the flash (i.e. select
 	# "User Flash Mode" where interrupt vectors are _not_ remapped,

tcl/target/lpc2378.cfg

@@ -35,7 +35,7 @@ $_TARGETNAME configure -work-area-phys 0x40000000 -work-area-size 0x8000 -work-a
 
 $_TARGETNAME configure -event reset-init {
 	# Force target into ARM state
-	armv4_5 core_state arm
+	arm core_state arm
 	#do not remap 0x0000-0x0020 to anything but the flash
 	mwb 0xE01FC040 0x01
 }

tcl/target/lpc2478.cfg

@@ -35,7 +35,7 @@ $_TARGETNAME configure -work-area-phys 0x40000000 -work-area-size 0x10000 -work-
 
 $_TARGETNAME configure -event reset-init {
 	# Force target into ARM state
-	armv4_5 core_state arm
+	arm core_state arm
 	# Do not remap 0x0000-0x0020 to anything but the Flash
 	mwb 0xE01FC040 0x01
 }