Better error messages when a program stops due to signal; support d10v getpid/kill

[deliverable/binutils-gdb.git] / sim / d10v / ChangeLog

Tue Oct 15 10:57:50 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* simops.c (OP_5F00): Add support for getpid, kill system calls.

	* interp.c (do_{2_short,parallel}): If an exception is raised,
	don't execute the second instruction.

Sat Oct 12 22:17:43 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* simops.c (OP_{31000000,6601,6201,6200}): Store address in a
	temporary in case the register is overriden when loading.
	(OP_6200): Output type is OP_DREG for tracing.

Fri Oct  4 23:46:18 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* d10v_sim.h (struct _state): Add mem_{min,max} fields.

	* interp.c (sim_size): Initialize mem_{min,max} fields.
	(sim_write): Update mem_{min,max} fields.
	(sim_resume): If PC is not in the minimum/maximum memory range,
	abort.
	(sim_create_inferior): Preserve mem_{min,max} fields.

Fri Sep 27 13:11:58 1996  Mark Alexander  <marka@cygnus.com>

	* simops.c (OP_5F00): Add support for time() system call.

Wed Sep 25 16:31:41 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* simops.c (OP_{6E01,6A01,6E1F,6A00}): Print both words being
	stored if tracing.
	(OP_5F00,trace_{in,out}put_func): Add finer grain tracing for
	system calls.

Mon Sep 23 17:55:30 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* simops.c (op_types): Add OP_{CONSTANT8,R2,R3}.
	(trace_input_func): Add support for  OP_{CONSTANT8,R2,R3}.
	(OP_{4900,24800000,4800,4A00,4B00,4D00,4C00}): Add OP_R2 and OP_R3
	to call/subroutine returns to trace the first two arguments and
	the return value.  For small jumps, use CONSTANT8, not CONSTANT16.

Fri Sep 20 15:36:45 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>

	* interp.c (sim_create_inferior): Reinitialize State every time 
	sim_create_inferior() is called.

Thu Sep 19 21:38:20 1996  Michael Meissner  <meissner@wogglebug.ziplink.net>

	* simops.c (OP_{401,2000000,601,3000000,23000000}): Get sign right
	on comparisons.
	(OP_401): Fix tracing information.

Thu Sep 19 10:30:22 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* simops.c (SIZE_{PC,LINE_NUMBER}): New default sizes for output.
	(trace_input_func): Use them.
	(trace_input_func): Make sure there is a trailing space after the
	instruction.
	(OP_6200): Fix tracing info.

	* Makefile.in (run): Add dependencies on libbfd.a and
	libiberity.a.

Wed Sep 18 09:13:25 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* d10v_sim.h (DEBUG_INSTRUCTION): New debug value to include line
	numbers and function names in debug trace.
	(DEBUG): If not defined, set to DEBUG_TRACE, DEBUG_VALUES, and
	DEBUG_LINE_NUMBER. 
	(SIG_D10V_{STOP,EXIT}): Values to represent the stop instruction
	and exit system call trap being executed.

	* interp.c (sim_stop_reason): Set exit code correctly for stop
	instruction and exit system call trap.

	* configure.in (--enable-sim-cflags): Remove trace case.
	(--enable-sim-debug): New switch to set the debug values.
	* configure: Regenerate.

	* simops.c (trace_{input,output}_func): Rename from
	trace_{input,output}.
	(trace_{input,output}): Call trace_{input,output}_func if
	d10v_debug is non-zero.
	(SIZE_INSTRUCTION): Cut down to 8.
	(SIZE_OPERANDS): Cut down to 18.
	(SIZE_LOCATION): New value for size of line number, function name
	field.
	(init_text_p,text{,_start,_end}): New static variables for
	printing line number and function name.
	(exec_bfd): New external that run.c sets.
	(trace_input_func): Print line number and function name if
	available and if desired.
	(OP_4E09): Don't print out DBT message.
	(OP_5FE0): Set exception field to SIG_D10V_STOP.
	(OP_5F00): Set exception field to SIG_D10V_EXIT.	

Sat Sep 14 22:18:43 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* interp.c (do_2_short): If the instruction encodes jump->ins,
	don't do the second instruction if the jump succeeds.

Fri Sep 13 22:35:19 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* simops.c (OP_5F00): Use unknown traps to print all GPRs,
	accumulators, PC, and F0/F1/C flags.

Thu Sep 12 12:50:11 1996  Mark Alexander  <marka@cygnus.com>

	* simops.c (OP_5F00): Fix problems with system calls.

Thu Sep 12 12:19:28 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* simops.c (OP_5F00): Correct tracing information for trap.

Wed Sep 11 18:55:50 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* Makefile.in (CSEARCH): Correctly find opcodes directory.

Mon Sep  9 13:27:26 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* simops.c (trace_output): Properly align accumulator output.
	(OP_3{0,2,4}00): Properly parenthesize test expression.  Add error
	if shift count is too high.
	(OP_4E{00,02,04,20,22,40,42}): Make tests agree with book.
	(OP_4E09): Make cpfg properly trace the input flags.
	(op_types): Add OP_FLAG_OUTPUT.
	(trace_{input,output}): Support OP_FLAG_OUTPUT.
	(OP_31000000): This ld2w varient is a 16-bit memory reference, not
	an 8-bit memory reference instruction for tracing purposes.
	(OP_201): Addi needs to set the carry.

Fri Sep  6 17:56:17 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>

	* simops.c (OP_2600, OP_2601): Changed min and max comparisons
	to use signed register values.

Wed Sep  4 11:35:17 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* d10v_sim.h (DEBUG_*): Add bit flags for controlling debug
	output.
	(_ins_type): New enumeration to specify which container an
	instruction is in, and whether it is part of a parallel operation.
	(_state): Add ins_type field.
	({,u}int{8,16,32,64}): Use limits.h to size the appropriate types.
	(ins_type_counters): Counters for the various instruction types.
	({left,right}_nops): Counters for the number of nops in each
	container.
	(d10v_debug): New variable to indicate whether debugging is turned
	on.

	* simops.c: (all functions): Change all #ifdef DEBUG code so that
	the input and output values can be traced, along with the
	instruction type.  Make the -t option enable tracing.
	(all functions): Change printf calls to use the printf_filtered
	function in the callback table.

	* interp.c (_leftright): New enumeration to say whether 2 short
	instructions are done left first or right first.
	(do_{long,2_short,parallel}): Indicate in the machine state which
	type of instruction this is.  Count each of the types of
	instructions executed.
	(sim_size): Only print the memory sizes if DEBUG_MEMSIZE debug
	flag is set.
	(sim_resume): Pass left/right indication to do_2_short.
	(all functions): Change printf calls to use the printf_filtered
	function in the callback table.
	(sim_trace): Turn on debug flag if DEBUG was defined, and call
	sim_resume.
	(sim_info): Print out statistics on instructions.
	(sim_{trace,create_inferior}): Eliminate extraneous output unless
	debugging.
	(sim_open): If args == -t and DEBUG was defined, set d10v_debug.
	Only initialize the hash table the first time sim_open is called.

	* Makefile.in: Make objects depend on d10v_sim.h.
	({,SIM_}CFLAGS): Include configure dependent switches.  Setting
	CFLAGS does not override host/target defines or SIM_CFLAGS.
	(CC_FOR_BUILD,gencode): Use CC_FOR_BUILD to compile gencode.
	(run): By default, the math library is not needed to be linked
	in.
	({BFD,LIBIBERTY}_LIB): Define as variables so they can be
	overridden.
	(VPATH): Don't set to anything but @srcdir@ to work with non-GNU
	makes.
	({run,callback}.o): Provide explicit paths to their appropriate
	source directories.
	(gencode{,.o},d10v-opc.o): Split compilation into creating object
	and linking.  Instead of linking in libopcodes.a, just compile
	d10v-opc.o directly to handle canadian cross.
	(CSEARCH): Add opcodes directory.

	* configure.in (--enable-sim-cflags): New switch to allow user to
	set the defaults.
	(CC_FOR_BUILD): Deal with canadian crosses.
	* configure: Regenerate.

Wed Sep 04 04:45:34 1996  Mark Alexander  <marka@cygnus.com>

	* simops.c: Include correct syscall.h for d10v, not host's.
	Fix #ifdef SYS_stat.

Tue Sep  3 14:00:04 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* simops.c (OP_5F00): Wrap all SYS_xxx traps with #ifdef.
	Add trap 2 to be printf and trap 3 to be putchar.

Wed Aug 28 21:42:34 1996  Mark Alexander  <marka@cygnus.com>

	* Makefile.in, d10v_sim.h, interp.c, simops.c: Add support
	for low-level system calls.

Wed Aug 28 17:33:19 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>

	* Makefile.in, d10v_sim.h, interp.c: Fix byte-order problems.

Mon Aug 26 18:30:28 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>

	* d10v_sim.h (SEXT32): Added.
	* interp.c: Commented out printfs.
	* simops.c:  Fixed error in sb and st2w. 

Thu Aug 15 13:30:03 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>

	* Makefile.in, d10v_sim.h, interp.c, simops.c: Added remaining
	DSP instructions.  Added modulo addressing.

Sun Aug 11 12:57:15 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>

	* Makefile.in, d10v_sim.h, interp.c, simops.c: Snapshot.

Fri Aug  2 17:44:24 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>

	* d10v_sim.h, simops.c: Snapshot.

Thu Aug  1 17:05:24 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>

	* ChangeLog, Makefile.in, configure, configure.in, d10v_sim.h, 
	gencode.c, interp.c, simops.c: Created.