Wed Jun 5 01:52:57 1996 James G. Smith <jsmith@cygnus.co.uk>

[deliverable/binutils-gdb.git] / sim / ppc / ChangeLog

Mon Jun  3 15:02:04 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* device_table.c (update_for_binary_section): Abort if we find an
	.interp section, which indicates the need for shared libraries to
	be loaded.

	* emul_unix.c (do_unix_{time,gettimeofday,getrusage}): Add support
	for time, gettimeofday, and getrusage system calls.
	({solaris,linux}_descriptors): Add new system calls.
	(do_get{,e}{uid,gid}): Use gid_t/uid_t types.
	(do_get{,p}pid): Use pic_t types.

	* configure.in (AC_TYPE_{GETGROUPS,SIGNAL}): Define.
	(AC_TYPE_{MODE,OFF,PID,SIZE,UID}_T): Define.
	* config{.in,ure}: Regenerate.

Sun Jun  2 11:21:17 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* emul_unix.{h,c}: New files to provide Solaris and Linux system
	call emulations.

	* Makefile.in (LIB_{SRC,OBJ}): Add emul_unix.{c,o}.
	(os_emul.o): Depend on emul_unix.h.
	(emul_unix.o): New dependency.

	* configure.in (--enable-sim-alignment): Add 0|default to mean set
	alignment to 0, which means use appropriate alignment for mode.
	(AC_CHECK_FUNCS): Add new functions needed by emul_unix.c.
	(AC_CHECK_HEADERS): Add new include files needed by emul_unix.c.
	* config.in: Regenerate.
	* configure: Regenerate.

	* emul_generic.c (emul_write2_status): New function to return
	results in r3 and r4 for Solaris system calls.
	(emul_do_system_call): If the system call is not support, but
	there is a string for the system call name, print out the string
	instead of the system call number.

	* emul_generic.h (emul_write2_status): Declare it.

	* emul_netbsd.c: Use /* */ around comment on #endif.

	* os_emul.c: Include emul_unix.h.
	(os_emulations): Add emulations for Solaris, and Linux.

	* psim.c (psim_usage): Add message about solaris, linux
	emulations.

Fri May 24 10:08:10 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* configure.in (AC_STRUCT_ST_{BLKSIZE,BLOCKS,RDEV}): Use these
	macros to determine whether or not the appropriate st_<xxx> fields
	exist in the stat structure.
	(AC_CHECK_FUNCS): Check for all unix system calls used, except for
	the real basic ones like open, read, write, etc.
	* config{.in,ure}: Regenerate.

	* emul_netbsd.c: Add support for missing system calls, and/or
	missing stat fields.
	(MAXPATHLEN): Undefine if including unistd.h, since sys/param.h
	might define it.

	* hw_pal.c (WITH_STDIO): Redefine if O_NDELAY, F_GETFL, or F_SETFL
	are not defined.
	(scan_hw_pal): Do not cause syntax error if O_NDELAY, F_GETFL, or
	F_SETFL not defined.

Tue May 21 17:24:45 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* emul_netbsd.c (write_stat): Don't convert st_blocks unless the
	host is netbsd.

Thu May 16 10:56:45 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* configure.in (AC_CHECK_HEADERS): Add sys/ioctl.h.
	* config{.in,ure}: Regenerate.
	* emul_netbsd.c: If HAVE_SYS_IOCTL_H is not defined, don't include
	sys/ioctl.h.

Tue May  7 17:28:12 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* hw_pal.c (hw_pal_instance_read_callback): Remove unused
	variable.

	* misc.c ({,target_}a2i): Rewrite to not use strtoul.

	* Makefile.in ({spreg,misc}.o): Add dependency on .c file.
	({i,d}gen): Don't link in liberity.  Use BUILD_LIBS instead of
	LIBS.

Mon May  6 11:31:43 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* hw_pal.c (hw_pal_instance_read_callback): If using stdio, use
	fgets to read line.  If not using stdio, do a simple blocking read
	of len bytes.

Fri May  3 15:07:42 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* Makefile.in: Correctly build simulator for build machine != host
	machine.

Tue Apr 30 18:46:05 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* configure.in (--enable-hostendian): Rework so the default uses
	the AC_C_BIGENDIAN results.  Only run AC_C_BIGENDIAN if not cross
	compiling.
	* configure: Regenerate.
	
	* sim-endian.h: Add more tests for host endian to support more
	platforms in a cross compilation environment.

Wed Apr 17 14:38:06 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* hw_pal.c ({scan,write}_hw_pal): If WITH_STDIO == DO_USE_STDIO,
	use stdio, instead of unpended read/printf_filtered.
	(hw_pal_instance_write_callback): If WITH_STDIO == DO_USE_STDIO,
	flush stdout after writing the characters.

	* options.c (print_options): Print out WITH_STDIO.

	* Makefile.in (STDIO_CFLAGS): Pass on result of @sim_stdio@
	configuration variable.
	(CONFIG_CFLAGS): Include STDIO_CFLAGS.
	(hw.{c,h}): Allow for source dir != build dir, and for HW_SRC
	files to contain directory pieces.

	* std-config.h (DO{,NT}_USE_STDIO): New flags for whether we
	should use stdio for console input.
	(WITH_STDIO): If not defined, define as DONT_USE_STDIO.

	* configure.in (--enable-sim-stdio): Add new switch to control
	whether stdio is used for console I/O.
	* configure: Regenerate.

	* interrupts.c (external_interrupt): Declare it to be
	INLINE_INTERRUPTS, not INLINE_CPU.

Mon Apr 15 23:30:56 1996  Andrew Cagney  <cagney@kremvax.highland.com.au>

	* events.c (insert_event_entry): Allow events to be scheduled
        *NOW* (at delta time 0).  Add assertions to clarify behavour of
        event queue.

	* events.c (update_time_from_event): New function. Calculates the
        number of ticks from the next event.  Use this.

Sun Apr 14 21:39:45 1996  Andrew Cagney  <cagney@highland.com.au>

	* emul_netbsd.c (do_break): Return 0 if success (instead of
        adjusted break).

	* device_table.c (vm_ioctl_callback): Don't return adjusted break
        (isn't needed).

Sun Apr 14 21:32:41 1996  Andrew Cagney  <cagney@highland.com.au>

	* device_table.h: Change type of the device ioctl so that it
	returns an int (status).
	* device.h (device_ioctl): Ditto.
	* device.c (device_ioctl): Ditto.

	* device_table.c (stack_ioctl_callback): Return 0 status.
	(vm_ioctl_callback): Ditto

Thu Apr  4 20:58:05 1996  Andrew Cagney  <cagney@highland.com.au>

	* interrupts.h (interrupts): New structure contains state of
        pending interrupts.

	* cpu.c (cpu_interrupts): New function.  Pending interrupt status
        in the cpu and grant access to it.  Add interrupts to cpu
        structure.

Fri Mar 29 22:09:25 1996  Andrew Cagney  <cagney@highland.com.au>

	* device.c (device_tree_add_parsed): Check that the creation of a
        device instance worked before using it.

	* psim.c (psim_halt): Remove cia argument from psim_halt.  This
        function does not save the CIA so do not pass it in.

Fri Mar 29 21:30:56 1996  Andrew Cagney  <cagney@highland.com.au>

	* hw_pal.c (hw_pal): Merge the halt and icu and console devices
        found in device_table.c into a single hack pal.

	* device_table.c (halt, icu, console): Delete.

	* Makefile.in (hw_pal.o): New dependency.

	* emul_generic.c (emul_add_tree_hardware): Re-arange device tree
        so that it uses the pal instead of the icu/halt/console devices.
        Wire the pal's interrupt ports up to the cpu nodes.

Fri Mar 29 20:17:17 1996  Andrew Cagney  <cagney@highland.com.au>

	* hw_iobus.c (hw_iobus_attach_address_callback): Move from
        device_table.c to here.

	* Makefile.in (hw_iobus.o): New dependency.

Mon Mar 25 22:07:13 1996  Andrew Cagney  <cagney@kremvax.highland.com.au>

	* configure: Regenerate with autoconf 2.9.

Thu Mar 21 00:14:26 1996  Andrew Cagney  <cagney@highland.com.au>

	* device_table.h: Always include string headers.

Sun Mar 17 22:40:57 1996  Andrew Cagney  <cagney@highland.com.au>

	* basics.h: Move the event queue's definition to here so that it
        can be refered to globally with out importing all of events.h.

	* psim.h, psim.c (psim_event_queue): New function.  Grant access
        to the simulation event queue.  Will make this the single point of
        access (there is after all only one event queue in the
        simulation).

	* cpu.c (cpu_create): Use psim_event_queue to obtain the event
        queue instead of it being passed in.  No longer allow access to
        the cpu's copy of the event queue.

Sun Mar 17 22:40:57 1996  Andrew Cagney  <cagney@highland.com.au>

	* events.h, events.c (event_handler): Remove event_queue from
        arguments passed to an event handler.  That argument is redundant
        - the `data' should refer to a data structure that contains the
        event queue if queing is needed.

	* cpu.c (cpu_decrement_event): adjust

	* events.c (event_queue_process): adjust

Sun Mar 17 22:40:57 1996  Andrew Cagney  <cagney@highland.com.au>

	* device.h, device.c (device_system): New, returns a handle for
        the system given the device.

	* device.c (device_address_init): Store a pointer back to the
        system in each devices node.

	* device_table.h: Don't pass `system' into each device when it is
        being initialized, this is now available using device_system(me).

	* device.c (device_address_init, device_data_init): Adjust.

	* hw_cpu.c, hw_nvram.c, hw_memory.c, hw_eeprom.c, device_table.c:
        Adjust.

Sun Mar 17 22:40:57 1996  Andrew Cagney  <cagney@highland.com.au>

	* interrupts.c (decrementer_interrupt, external_interrupt):
        Remember that an interrupt wasn't delivered so that it can be
        tried again later.

	* interrupts.c (check_masked_interrupt): New function.  (re)
        checks for the posibility that a recent change to the MSR may have
        made it possible to deliver an interrupt that was previously
        masked be the EE bit.

	* ppc-instructions (mtmsr, mfmsr, rfi): Check for posibility of
	a pending interrupt being delivered using check_masked_interrupt().

	* cpu.c (cpu_decrement_event): Just call decrementer_interrupt()
        leaving it to that module to handle both interrupt synchronization
        and masking.

	* cpu.c (struct _cpu): remove variables that were going to record
        pending decrementer and external interrupts.

Sun Mar 17 22:40:57 1996  Andrew Cagney  <cagney@highland.com.au>

	* hw_cpu.c, hw_cpu.h: New files.  Implement a device that sits
        between the interrupt controller and the simulators internal
        processor model.  Maps device interrupts onto the processor
	interrupt function calls.

Mon Mar  4 06:06:54 1996  Andrew Cagney  <cagney@kremvax.highland.com.au>

	* hw_nvram.c: NVRAM device that includes a real-time clock that is
        updated each second.

Mon Mar  4 04:18:50 1996  Andrew Cagney  <cagney@kremvax.highland.com.au>

	* device.h (attach_type): Remove attach_default type address
        spaces.  Will replace with levels of callback memory.

	* corefile.h, corefile.c (new_core_mapping), corefile.c
        (core_map_attach): Replace default attach with a layerd callback
        approach.

Sun Mar  3 03:58:46 1996  Andrew Cagney  <cagney@kremvax.highland.com.au>

	* device.c (split_property_specifier): ensure that only a single
        property is found.
	(split_value): New function, parses the value part of a device
	spec.

	* device.c (device_tree_add_parsed): Use the interrupt conversion
        functions to determine the interrupt port numbers.

	* device_table.h: Add table that maps between an interrupts
        symbolic name and its port number.

	* device.h, device.c (device_interrupt_decode,
        device_interrupt_encode): new functions use the recently added
        interrupt port name/number tables to perform conversion.

Sun Mar  3 03:23:59 1996  Andrew Cagney  <cagney@kremvax.highland.com.au>

	* device.h, device.c (device_set_array_property,
        device_set_boolean_property, device_set_ihandle_property,
        device_set_integer_property, device_set_string_property): New
        functions - allow the value of a given property to be changed.

	* device.h, device.c: Re-order declaration and definition of
        property functions.

Sun Mar  3 03:10:22 1996  Andrew Cagney  <cagney@kremvax.highland.com.au>

	* device.c (device_tree_print_device, device_tree_add_parsed):
        Remove references to phandle properties.

Tue Feb 27 23:59:35 1996  Andrew Cagney - aka Noid  <cagney@highland.com.au>

	* device_table.h: Revamp device init callbacks so that they are a
        sub structure.
	* device.c (device_init_data, device_init_address): If an init
        callback is NULL assume it should do nothing.
	* device_table.c (ignore_device_init, unimp_device_init): delete
        as redundant.
	* device_table.c, hw_memory.c: adjust.

	* (io): ditto.
	* (dma): ditto.
	* (device_instance): ditto.
	* (ioctl): ditto.
	* (address nee config_address): ditto.
	* (interrupt): ditto.

Mon Feb 26 22:47:15 1996  Andrew Cagney - aka Noid  <cagney@highland.com.au>

	* Makefile.in (hw.h, hw.c): New targets. Create from the list of
        hw_*.c files. hw.h declares a device descriptor table for each hw
        device while hw.c lists those tables in a form suitable for the
        construction of a top leveltable in device_table.c.

	* Makefile.in (device_table.o): now depends on hw.c a generated
        table of hw.

	* device_table.c (device_table): Re-arange the table of devices so
        that two levels are possible.  Make use of hw.c.
	* device_table.h: ditto.

	* device.c (device_template_create_device): Handle new two level
        device lookup table.
	* device.c (device_usage): ditto.

Mon Feb 26 22:24:00 1996  Andrew Cagney - aka Noid  <cagney@highland.com.au>

	* device_table.c: Delete the memory device (moved to hw_memory.c).

	* hw_memory.c: New file.  Just an OpenBoot memory device.