changelog

这个是LINUX下的GDB调度工具的源码

Fri Dec 13 14:30:31 1996  Andrew Cagney  <[e-mail]>

	* std-config.h (WITH_STDIO): Don't hard-wire the STDIO mechanism.
  	Instead have each emulation default it to DO_USE_STDIO.

	* emul_generic.c (emul_add_tree_options): Select the STDIO I/O
 	mechanism as the default if enabled or if nothing selected.

	* sim_calls.c (sim_io_read_stdin): Passify GCC's desire for a
 	return value.
	(sim_io_write_stdout): Ditto.
	(sim_io_write_stderr): Ditto.
	* main.c (sim_io_write_stdout): Ditto.
	(sim_io_write_stderr): Ditto.
	(sim_io_read_stdin): Ditto.

Tue Dec 10 10:31:48 1996  Michael Meissner  <[e-mail]>

	* emul_chirp.c (emul_chirp_instruction_call): Make *printf calls
	type correct.
	* vm.c (om_effective_to_virtual): Ditto.
	* events.c (event_queue_schedule{,_after_signal}): Ditto.
	(event_queue_{deschedule,process}): Ditto.
	* hw_htab.c (htab_decode_hash_table): Ditto.
	(htab_map_{page,binary}): Ditto.
	* hw_opic.c (hw_opic_init_data): Ditto.
	(handle_interrupt): Ditto.
	(do_processor_init_register_{read,write}): Ditto.
	(write_vector_priority_register): Ditto.
	({read,write}_destination_register): Ditto.
	(do_suprious_vector_register_{read,write}): Ditto.
	(do_current_task_priority_register_N_{read,write}): Ditto.
	(do_timer_frequency_reporting_register_{read,write}): Ditto.
	(do_timer_N_{current,base}_count_register_{read,write}): Ditto.
	(do_ipi_N_dispatch_register_write): Ditto.
	(do_vendor_identification_register_read): Ditto.
	(do_feature_reporting_register_N_read): Ditto.
	(do_global_configuration_register_N_{read,write}): Ditto.
	* hw_phb.c (hw_phb_attach_address): Ditto.
	(hw_phb_unit_decode): Ditto.
	(hw_phb_address_to_attach_address): Ditto.
	(hw_phb_io_{read,write}_buffer): Ditto.
	* hw_ide.c (setup_fifo): Ditto.

	* sim_calls.c ({defs,callback,remote-sim}.h): Find gdb include
	files via -I<dir> instead of using "../../gdb/" prefixes.

Tue Dec 10 10:12:44 1996  Andrew Cagney  <[e-mail]>

	* debug.h: Add tracing for the pal device.
	* hw_pal.c: Update.

	* emul_chirp.c (chirp_emul_getprop): More tracing.

Tue Dec 10 10:12:44 1996  Andrew Cagney  <[e-mail]>

	* device.h, device.c (device_find_ihandle_runtime_property): New
 	function. Reverse of add_ihandle_runtime property.
	(device_init_runtime_properties): Use it.
	
	* device.c (find_property_entry): New function returns the
 	internal property spec.
	(device_set_property): Use.
	(device_find_property): Use.

Tue Dec 10 10:12:44 1996  Andrew Cagney  <[e-mail]>

	* psim.c (psim_merge_device_file): Strip newline from device
 	specs.
	
Tue Dec 10 10:12:44 1996  Andrew Cagney  <[e-mail]>

	* hw_htab.c (htab_map_binary): For overlapping text / data maps
 	merge the two.  Also check that the merge is safe.

	* emul_chirp.c (emul_chirp_create): Add a description property to
 	the pte's so that they are easier to identify.
	
	(emul_chirp_create): Don't specify a load address for the CHRP
 	image.  Always use the values specified by the executable.

	* hw_htab.c (htab_map_page): Abort if a duplicate map is
 	encountered.

Mon Dec  9 12:08:46 1996  Andrew Cagney  <[e-mail]>

	* hw_htab.c (htab_map_page): Formatting.

	* emul_chirp.c (emul_chirp_instruction_call): Check for a NULL
 	method name when handling the client call. Also check for other
 	bad call arguments.
	
	* emul_chirp.c (emul_chirp_create): Allow real-mode?, real-base,
 	etc to be overriden.

Mon Dec  9 12:08:46 1996  Andrew Cagney  <[e-mail]>

	* os_emul.c (os_emul_create): Use tree find property instead of
 	device find property - sigh.

Thu Dec  5 10:46:42 1996  Andrew Cagney  <[e-mail]>

	* 961205: Release snapshot 961205.
	
Thu Dec  5 10:46:42 1996  Andrew Cagney  <[e-mail]>

	* configure.in (hostbitsize, bitsize): Fix typo in error message -
 	cannot contain a comma.
	(sim-warnings): Check for more potential errors.

	* psim.c (psim_usage): Add -f <file> option.  Specifies a file
 	containing device tree specifications that should be merged into
 	the device tree.

	* configure.in: Sort options.
	* configure: Rebuild
	
Wed Dec  4 13:57:31 1996  Andrew Cagney  <[e-mail]>

	* psim.c (psim_usage): Add -n option - specify number of
 	processors.

	* emul_chirp.c: Add description.
	* emul_bugapi.c: Ditto.
	* emul_unix.c: Ditto.
	* emul_netbsd.c: Ditto.

Fri Nov 29 11:12:22 1996  Andrew Cagney  <[e-mail]>

	* hw_pal.c (hw_pal_attach_address): New function, if an attach is
 	encountered, assume that it is the single disk.
	* hw_pal.c: Add generic device/size decode methods.
	
	* hw_nvram.c (hw_nvram_init_address): Use the first nonzero reg
 	property entry when determining the nvram size.

	* hw_core.c: Add generic address/size decode methods.

	* emul_chirp.c (emul_chirp_instruction_call): Return and trace
 	nonzero status from client functions.

	* main.c (error): Always include a cariage return when writing out
	errors.

Wed Nov 20 00:36:55 1996  Doug Evans  <[e-mail]>

	* sim_calls.c (sim_resume): Reset sim_should_run if single
 	stepping.

Thu Nov 28 13:19:46 1996  Andrew Cagney  <[e-mail]>

	* emul_bugapi.c (emul_bugapi_do_diskio): Add support for multiple
 	optional disks.

	* emul_generic.c (emul_add_tree_hardware): Drop the dummy eeprom.
  	Attach the pal - for I/O - as a pseudo device haning from the
 	firmware sub tree.

	* emul_bugapi.c (emul_bugapi_create): Add a small memory device to
 	the device tree at the address of the hi-mem interrupt vector
 	addreses.  Used by bugapi to establish its trap instructions.
	
	* debug.h: Add a new macro DITRACE for tracing device instances.
	
	* debug.h: Extend the DTRACE macro so that it can also tests for
 	device specific tracint.
	
	* device.h, device.c (device_trace): Add method to determine
 	device specific tracing.
	(device_init_address): Set the devices tracing level.
	
Thu Nov 21 12:05:32 1996  Andrew Cagney  <[e-mail]>

	* tree.h, tree.c (tree_device): New files - separate out the
 	device parser and other tree operations from the device.
	
	* inline.h, inline.c (INLINE_TREE): Add.
	* device.h, device.c (device_tree_add_parsed): Delete.
	* Makefile.in (tree.c): Add rules for new file.
	* Makefile.in: Better order the emul_* files.
	
	* emul_generic.c (emul_add_tree_hardware): Update.
	* emul_netbsd.c (emul_netbsd_create): Update.
	* emul_unix.c (emul_unix_create): Ditto.
	* emul_chirp.c (emul_chirp_create): Ditto.
	* emul_bugapi.c (emul_bugapi_create): Ditto.
	* psim.c (psim_tree): Ditto.
	* hw_init.c: Ditto.
	
	* emul_generic.h: Include tree.h
	* Makefile.in: Add to EMUL_GENERIC_H dependencies.
	
	* device.h, device.c (device_root): New function - returns the
 	root of the tree.
	* corefile.c: Use.
	
	* device.h, device.c (device_clean): New function, clean up device
 	ready for next simulation run. This includes things like deleting
 	interrupt edges and properties created during the simulation and
 	also scrubbing any pre-defined properties.
	* tree.c (tree_init): Use.
	
	* device.h, device.c (device_init_static_properties): New
 	function.  Initialize any static predefined properties.  By static
 	we mean those that have values that can be determined before the
 	device tree initialization has started.
	* tree.c (tree_init): Use.

	* device.h, device.c (device_init_address): Add code to
 	check/verify the devices #address-cells and #size-cells.
	(device_add_integer_property): Delete corresponding code.
	(device_nr_address_cells, device_nr_data_cells): Check for
	property when returning value.
	
	* device.h, device.c (device_init_runtime_properties): New
 	function.  Initialize those properties that are not `static'.  At
 	present the only such property is the ihandle.
	* tree.c (tree_init): Use.
	
	* device.h, device.c (reg, ranges): Rework these so that they use
 	an array of the fundamental type - single reg or single range
 	entry.
	
	* device.h, device.c (device_add_ihandle_runtime_property):
 	Re-implement the adding of an ihandle during tree construction so
 	that it better fits in with device initialization.
	
Thu Nov 21 12:05:32 1996  Andrew Cagney  <[e-mail]>

	* device.h, device.c (device_ioctl): Add additional argument -
 	request - so that the caller must always specify the type of
 	the ioctl request.

	* device_table.h: Update.
	* hw_trace.c (hw_trace_ioctl): Ditto.
	* hw_vm.c (hw_vm_ioctl_callback): Ditto.
	* hw_init.c (hw_stack_ioctl_callback): Ditto.
	* psim.c (psim_options): Ditto.
	
Thu Nov 21 12:05:32 1996  Andrew Cagney  <[e-mail]>
	
	* BUGS: Updated a bit.

Wed Nov 20 14:06:37 1996  Andrew Cagney  <[e-mail]>

	* hw_opic.c: Finish - third round.

Wed Nov 20 12:02:08 1996  Andrew Cagney  <[e-mail]>

	* hw_glue.c (hw_glue_io_read_buffer_callback): Fix miscalc of glue
 	reg index.
	(hw_glue_io_write_buffer_callback): Ditto.

Tue Nov 19 21:17:08 1996  Andrew Cagney  <[e-mail]>

	* events.c (event_queue_process): Was incorrectly consuming future
 	events on the queue when they should be left alone.

	* debug.h, debug.c (events): Add support for event queue tracing.
	* events.c: Add event tracing.
	
	* debug.h, debug.c: Order device trace options.
	
Fri Nov 15 15:23:39 1996  Michael Meissner  <[e-mail]>

	* pk_disklabel.c (pk_disklabel_create_instance): Fix up some
	warnings generated by GCC.

Sun Nov 17 17:59:14 1996  Andrew Cagney  <[e-mail]>

	* sim-endian.h: Add LE versions of byte swap macros.  Needed for
 	PCI devices which are little-endian.
	
	* sim-endian-n.h (endian_le2h_N, endian_h2le_N): Ditto

Sun Nov 17 17:59:14 1996  Andrew Cagney  <[e-mail]>

	* hw_iobus.c (hw_iobus_attach_address_callback): Change the iobus
 	so that it is implementing a 1-1 address map.
	
	* emul_generic.c (emul_add_tree_hardware): Adjust.

	* emul_generic.c (emul_add_tree_hardware): Don't add the nvram as
 	a default.

Sun Nov 17 17:59:14 1996  Andrew Cagney  <[e-mail]>
	
	* device.c (split_find_device): Be tolerant of missing unit
 	addresses.

Fri Nov 15 16:49:49 1996  Andrew Cagney  <[e-mail]>

	* basics.h (port_direction): New type, specify the direction of
 	any `port'.
	
	* device.h, device.c (device_interrupt_decode): Include
 	specification of port direction in operations.
 	(device_interrupt_encode): Ditto.
	
	* device_table.h: Add a direction field to the interrupt port
 	table.

	* device.c (device_tree_add_parsed): Specify port direction.
	
Thu Nov 14 21:38:13 1996  Andrew Cagney  <[e-mail]>

	* hw_opic.c: Finish - second round.

Thu Nov  7 00:18:59 1996  Andrew Cagney  <[e-mail]>

	* hw_htab.c (htab_init_data_callback): Allow the virtual-address
 	to be specified as an array which allows 64bit addresses.

	* device.c (device_find_integer_array_property): New function.
  	Simplify the querying of elements of an integer array.
	(device_add_integer_property, device_find_integer_property):
 	Update to correctly use the cell type.

	* vm.c (om_unpack_sr): Clarify shifting comment.
	(om_pte_0_masked_vsid): Ditto. Add 64bit version.

	* emul_chirp.c (emul_chirp_create): Initialize the segment
 	registers.

	* vm.c (om_effective_to_virtual): Trace segment register use.

	* hw_htab.c (htab_map_page): Print out the pteg base address to
 	simplify cross checking between vm and the htab.
	(htab_decode_hash_table): Use device_error instead of error.
	(htab_map_page): Ditto.
	(htab_dma_binary): Ditto.
	(htab_map_binary): Ditto.
	(htab_init_data_callback): Ditto.

Wed Nov  6 20:20:58 1996  Andrew Cagney  <[e-mail]>

	* interrupts.h: Clarify what the optional instruction program
 	interrupt is - a subset of illegal instruction program interrupt.

	* interrupts.c (program_interrupt): For UEA mode, clarify what an
 	optional instruction program interrupt is.
	(program_interrupt): For OEA mode, as per spec, generate an
 	illegal instruction program interrupt when an optional instruction
 	is encountered.
	
	* gen-semantics.c (print_semantic_body): Delete code
 	differentiating between an unimplemented floating point and normal
 	instruction.  Instead, such a case can be handled explicitly.

	* ppc-instructions (store floating-point as integer word indexed):
 	Mark as optional.
	(Floating Convert to Integer Doubleword): Make the floating point
 	assist interrupt explicit.
	(Floating Convert To Integer Doubleword with round towards Zero):
 	Ditto.
	(Floating Convert To Integer Word): Ditto
	(Move From FPSCR): Ditto.
	(Move to Condition Register from FPSCR): Ditto.
	(Move To FPSCR Fields): Dit