sim/ppc/ChangeLog

   1 Thu Nov  2 08:54:04 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
   2
   3         * main.c (main): Call psim_print_info with verbose == 2.
   4
   5         * mon.c (mon_print_info): Align the cpu number and number of
   6         instructions fields.  Do not print an instruction category if the
   7         CPU did not execute any of those instructions.
   8
   9         * configure.in: Add support for --enable-sim-opcode=stupid.
  10         * configure: Regenerate.
  11
  12 Wed Nov  1 23:46:59 1995  Andrew Cagney - aka Noid  <cagney@highland.com.au>
  13
  14         * std-config (INLINE_DEVICE_TREE): Don't inline either of
  15         device_tree.c or devices.c.  There is no significant gain.
  16
  17         * configure.in, Makefile.in: add --enable-sim-icache=[0-9]* and
  18         IGEN_ICACHE macro.
  19
  20 Wed Nov  1 23:46:59 1995  Andrew Cagney - aka Noid  <cagney@highland.com.au>
  21
  22         * igen.c (main), misc.h (target_a2i, i2target), misc.c: Add
  23         functions to convert between target and igen internal bit numbers.
  24         Make IO go through these functions. Add -b (bit size) and -h (high
  25         bit nr) options to igen.  Typical usage would be: ./igen -b 16 -h
  26         15 for a 16 bit instruction format with the msb given a number 15.
  27
  28 Wed Nov  1 22:17:32 1995  Andrew Cagney - aka Noid  <cagney@highland.com.au>
  29
  30         * dgen.c (main): Was outputting optarg even when it was NULL.
  31
  32 Tue Oct 31 23:48:33 1995  Andrew Cagney - aka Noid  <cagney@highland.com.au>
  33
  34         * vm_n.h (vm_data_map_load_N, vm_data_map_store_n), debug.h,
  35         debug.c: Add tracing of load/store unit (virtual) with -t
  36         load-store.
  37
  38 Tue Oct 31 21:44:01 1995  Andrew Cagney - aka Noid  <cagney@highland.com.au>
  39
  40         * std-config.h (WITH_ENVIRONMENT): Add USER_ENVIRONMENT which does
  41         not include things such as the time base and events.
  42
  43         * interrupt.c, sim_calls.c, cpu.h, vm.c, configure.in: Add UEA to
  44         all environment switches for above.
  45
  46         * psim.c (psim_create): ditto - new device tree node name is
  47         /options/environment-architecture with values user, virtual and
  48         operating.
  49
  50 Tue Oct 31 21:31:32 1995  Andrew Cagney - aka Noid  <cagney@highland.com.au>
  51
  52         * ppc-opcode-stupid: Third example of use of opcode table - this
  53         one expands all mtspr/mfspr and branch instructions.  Appears to
  54         give about a 10% gain in performance if everything enabled.  Also
  55         takes about 150mb of swap to build.
  56
  57 Wed Nov  1 10:49:48 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
  58
  59         * emul_netbsd.c (do_exit): Print arguments and close parenthesis
  60         if tracing, since exit doesn't go through emul_exit_call.
  61         (do_read): Print arguments if tracing.
  62         (do_write): Ditto.
  63         (do_open): Ditto.
  64         (do_break): Ditto.
  65         (do_kill): Ditto.
  66         (do_dup): Ditto.
  67         (do_sigprocmask): Replace trace with printing arguments if
  68         tracing.
  69         (do_ioctl): Print arguments if tracing.
  70         (do_umask): Ditto.
  71         (do_dup2): Ditto.
  72         (do_fcntl): Ditto.
  73         (do_gettimeofday): Ditto.
  74         (do_getrusage): Ditto.
  75         (do_fstatfs): Ditto.
  76
  77         * filter_filename.c: New file to provide filter_filename to strip
  78         the directory prefix from a file.
  79         * filter_filename.h: New include file to declare filter_filename.
  80
  81         * debug.h: Include filter_filename.h.
  82         (TRACE,DTRACE,ERROR): Use filter_filename on __FILE__.
  83
  84         * misc.h: Include filter_filename.h.
  85         (ASSERT): Use filter_filename on __FILE__.
  86
  87         * igen.c (lf_print_my_prefix): Use filter_filename on the filename
  88         argument.
  89
  90         * Makefile.in: Add filter_filename support.
  91
  92         * ppc-instructions (dcbi, icbi): Make these NOPs rather than
  93         invalid instructions.
  94
  95         * configure.in: Add support for more --enable-sim-* switches.
  96         Use config.make and config.hdr to write to Makefile and config.h
  97         respectively.  Don't rewrite Makefile, just append to it.
  98         * configure: Regenerate.
  99         * config.{make,hdr}: New shell scripts.
 100
 101         * Makefile.in: Remove all variables set by configure.in.
 102         (psim.o): Depend on $(BUILT_SRC) also.
 103
 104         * emul_netbsd.c (do_gettimeofday,do_getrusage): When comparing an
 105         integer, use 0, not NULL.
 106
 107 Tue Oct 31 15:20:04 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 108
 109         * configure.in: Add support for --enable-sim-inline,
 110         --enable-sim-bswap, --enable-sim-cflags, --enable-sim-complex,
 111         --enable-sim-switch, --enable-sim-duplicate, --enable-sim-filter,
 112         and --enable-sim-endian switch to control various Makefile
 113         variables.
 114         * configure: Regenerate from configure.in.
 115         * Makefile.in: Add various Make variables that the various
 116         switches alter.
 117
 118         * std-config.h (DEFAULT_INLINE): Don't set this to 2 if using GCC
 119         and optimizing by default.
 120
 121 Fri Oct 27 19:26:27 1995  Andrew Cagney  <cagney@highland.com.au>
 122
 123         * bits.h (ROTL32, ROTL64): Were functions, made them macros, now
 124         make them functions again.  Appears 2.6.3 is confused by just a
 125         macro.
 126
 127 Thu Oct 26 18:31:58 1995  Andrew Cagney  <cagney@highland.com.au>
 128
 129         * ppc-endian.c (SWAP_8): Fix 8 byte swap!
 130
 131         * psim.c (psim_create): Not correctly checking that runtime
 132         configuration of things like ENDIAN, ENVIRONMENT and ALIGNMENT
 133         matched the compiled in ones.
 134
 135         * debug.h (ITRACE), igen.c: Tidy up more tracing flags -
 136         trace_semantics is now different to trace_idecode, the former
 137         checks the cache.
 138
 139 Tue Oct 24 21:54:13 1995  Andrew Cagney  <cagney@highland.com.au>
 140
 141         * ppc-instructions (mtsrin): Missing instruction
 142         * ppc-instructions (mfsrin): Missing instruction
 143         * ppc-instructions (eieio): Missing instruction
 144
 145 Tue Oct 24 20:55:29 1995  Andrew Cagney  <cagney@highland.com.au>
 146
 147         * build-psim: New shell script - see internals for usage,
 148         simplifies the process of building custom simulators.
 149
 150 Mon Oct 23 23:48:59 1995  Andrew Cagney  <cagney@highland.com.au>
 151
 152         * std-config.h (SEMANTICS_INLINE): Tidy up notes on each of the
 153         INLINE macros.  Make SEMANTICS_INLINE == 1 if DEFAULT_INLINE == 2.
 154         Don't use DEFAULT_INLINE to define REGISTERS_INLINE DEVICES_INLINE
 155         DEVICE_TREE_INLINE or INTERRUPTS_INLINE as none of these are on
 156         the instruction or data critical paths.
 157
 158         * FIXME: need to set up OS_EMUL_INLINE/EMUL_GENERIC_INLINE but
 159         not on critical path.
 160
 161         * FIXME: devices.c/emul_netbsd.c would benefit (slightly) from
 162         the inclusion of device_tree.c/emul_generic.c.
 163
 164 Mon Oct 23 00:31:50 1995  Andrew Cagney  <cagney@highland.com.au>
 165
 166         * os_emul.[hc], emul_generic.[hc], emul_netbsd.[hc]: replace
 167         system.[hc].  Start of suport for multiple emulations and
 168         emulation state (os_emul object).
 169
 170         * emul_generic.[hc]: Start of code to implement proper system call
 171         tracing (from spy).
 172
 173 Sun Oct 22 21:33:51 1995  Andrew Cagney  <cagney@highland.com.au>
 174
 175         * cpu.h, cpu.c (cpu_init): New function, zero the registers before
 176         the processor is started. Fixes problem of registers being
 177         undefined when restarting from within gdb.
 178
 179         * cpu.h, cpu.c (cpu_flush_icache): New function, flushes the
 180         instruction cache (if present).  Fixes problem of cpu caching gdb
 181         breakpoint instructions.
 182
 183         FIXME: PSIM sometimes aborts calling error(), it should instead
 184         call sim_error() say which takes care of housekeeping such as
 185         saving the CIA before calling error.
 186
 187         * NOTE: cpu_flush_cache() instead of cpu_synchronize_context() is
 188         used when restarting a simulation because the latter has the
 189         unwanted side effect (well I as a kernel hacker think it is) of
 190         performing an isync when the instruction stream doesn't contain
 191         one.
 192
 193 Sun Oct 22 19:27:48 1995  Andrew Cagney  <cagney@highland.com.au>
 194
 195         * mon.h (new), mon.c (new), std-config.h (WITH_MON): Performance
 196         monitoring module. Counts both instructions issued and
 197         load/stores.
 198
 199         * NOTE: mon does not contain to count instruction loads as this
 200         information is already available from the mon_issue() hook.
 201
 202         * FIXME: mon doesn't have access to register usage information.
 203         This is needed if the user wants to monitor things like register
 204         stalls.
 205
 206         * igen.c (lf_print_c_semantic), vm_n.h: Add counting code.
 207
 208         * psim.h, psim.c (psim_create), cpu.h, cpu.c (cpu_create): Attach
 209         a common monitor to each of the cpus. Delete
 210         cpu_increment_number_of_insns() and cpu_get_number_of_insns()
 211         replaced by copied code in mon.[hc].
 212
 213 Sun Oct 22 18:42:45 1995  Andrew Cagney  <cagney@highland.com.au>
 214
 215         * sim_calls.c, main.c, psim.c (psim_create): always create
 216         `WITH_SMP' cpus.  The actual number of CPU's active in a
 217         simulation run is taken from the device node: /init/smp (an
 218         integer). WITH_SMP changed to 2 (remember to put it back to 0).
 219
 220 Fri Oct 20 17:26:54 1995  Andrew Cagney  <cagney@highland.com.au>
 221
 222         * system.c: More system call emulation.  If code appears NetBSD
 223         specific, make conditional to being compiled on a NetBSD system
 224         (sigh).
 225
 226 Wed Oct 18 23:02:20 1995  Andrew Cagney  <cagney@highland.com.au>
 227
 228         * Makefile.in, gen.c(delete), igen.c(new), dgen.c(new),
 229         lf.[ch](new), table.[ch](new): Split into two generators - igen
 230         that outputs the instruction tables and dgen that outputs the spr
 231         tables.  Add -f (filter out) flag to igen to filter out certain
 232         instructions (ex 64 bit ones) from the created tables.  Include
 233         $(LIBIBERTY_LIB) in link options in case host lacks some libc
 234         functions.
 235
 236         * NOTE: igen, since it was originally written for the
 237         PowerPC/RS6000, things the MSB is 0 and the LSB is 63{31}.
 238
 239         * Makefile.in, std-config.h, ppc-cache-rules(new),
 240         ppc-opcode-complex(new), ppc-opcode-simple(new): (for igen) Create
 241         cache-rule and opcode-rule tables from macros found std-config.h.
 242         Delete corresponding macro's from std-config.h.
 243
 244         * FIXME: under this new igen scheme, when playing around with igen
 245         options, you'll find that depenencies don't work very well.
 246
 247         * igen.c (gen_itable_c, gen_itable_h), Makefile.in: code to output
 248         an table of all the instructions.  Code to output a type
 249         enumerating all the instructin names.
 250
 251         * igen.c(lf_print_c_semantic): Move call to increment instruction
 252         counter so that it occures _after_ the instruction has been fully
 253         validated, was double counting illegal/invalid instructions.  Add
 254         conditional so only compiled in when WITH_PROFILE enabled (enabled
 255         by default).
 256
 257         * igen.c, cpu.h, cpu.c(cpu_increment_number_of_insns): Include
 258         itable.h, count individual instruction types not just total,
 259         adjust reporting functions to output this.
 260
 261         * ppc-instructions (64 bit Load Doubleword with Update Indexed):
 262         Had 32./ instead of 31./
 263
 264         * ppc-instructions (64 bit Store Double Word Conditional Indexed):
 265         bitrot - updated to use newer CR register operators.
 266
 267         * ppc-instructions (64bit Floating Convert from Integer
 268         Doubleword): Correct call to Round_Float().
 269
 270 Mon Oct 16 00:31:20 1995  Andrew Cagney  <cagney@highland.com.au>
 271
 272         * basics.h: #include "sim_callbacks.h" earlier so that its
 273         prototypes are declared in all other header files.
 274
 275         * bits.h, bits.c, idecode_expression.h (ROTL32, ROTL64): Update
 276         doc in bits.h, remove dead code in bits.c, move ROTL32/ROTL64 into
 277         bits.h.
 278
 279         * FIXME: the bits.h/bits.c macro's should be replaced with
 280         (inline) c functions.
 281
 282         * cpu.c(cpu_add_commas), device_tree.h, device_tree.c(scand_*):
 283         Add size of buffer argument to functions writing a string into a
 284         buffer.  Check for buffer overflow.
 285
 286 Sun Oct 15 22:16:11 1995  Andrew Cagney  <cagney@highland.com.au>
 287
 288         * devices.h, devices.c, debug.h, debug.c: add macro's for tracing
 289         of each device.  Make parameter names consistent so macros work.
 290         Use macro's in device functions.
 291
 292         * device_tree.c, devices.h, devices.c: include path to device in a
 293         devices node when creating it.
 294
 295         * device_tree.c, debug.h, debug.c: Add tracing of `device-tree'.
 296
 297         * core.c: add tracing of core-device, adjust parameter names in
 298         core functions to be consistent with those in devices*.
 299
 300 Sun Oct 15 20:33:20 1995  Andrew Cagney  <cagney@highland.com.au>
 301
 302         * debug.h, debug.c (trace_option): New function. Parses the trace
 303         option, updating the trace array.
 304
 305         * debug.h, debug.c (trace_usage): New function. Outputs the list
 306         of all possible trace options.
 307
 308         * sim_calls.c (sim_open), main.c (main): Use new trace_option() to
 309         parse trace options specified with the simpler -t flag.  Adjust
 310         usage.
 311
 312         * FIXME: basic parsing of command line options is still duplicated
 313         by main.c and sim_calls.c
 314
 315 Thu Oct 26 10:42:28 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 316
 317         * Makefile.in (clean): Delete *.i and *.out files.
 318
 319         * ppc-endian.c (SWAP_n): Add SET argument to allow use of SWAP
 320         macros for either assignment or return.  Fix SWAP_8 to use a
 321         union, and two SWAP_4's.  Delete SWAP_N, since nobody uses it now.
 322         (ENDIAN_N): Add SET argument to SWAP_n calls.  Delete macro defs
 323         that hardwired swapping on/off, let optimizer delete dead code.
 324
 325         * main.c (main): Add printf that we caught a signal and print out
 326         the failing address.
 327
 328 Thu Oct 19 21:43:39 1995  Fred Fish  <fnf@fishfood.amigalib.com>
 329
 330         * Makefile.in:  Remove tabs from otherwise empty line.
 331         Confuses many non-GNU versions of "make".
 332
 333 Wed Oct 18 08:51:25 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 334
 335         * Makefile.in (clean): Delete files produced by gen.
 336
 337 Mon Oct 16 17:34:24 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 338
 339         * gen.c (lf_print_c_semantic_function): Move counting # of
 340         instructions here so it works with caching.
 341         (gen_idecode_c): Move from here.
 342
 343 Wed Oct 11 17:13:15 1995  Andrew Cagney  <cagney@highland.com.au>
 344
 345         * gen.c, ppc-instructions, psim.c: Fix code for generating
 346         cracking instruction cache.  Delete the code that cached just the
 347         result from doing an instruction lookup - this ran slower than no
 348         cache at all.
 349
 350 Fri Oct 13 09:58:43 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 351
 352         * Makefile.in (gen.o): Include $(INLINE_CFLAGS).
 353
 354         * debug.h (ppc_trace): Rename from trace, to avoid a conflict with
 355         TCL when gdb is linked with the simulator.
 356         * debug.c (ppc_trace): Ditto.
 357         * sim_calls.c (sim_open): Change trace -> ppc_trace.
 358         * main.c (main): Ditto.
 359
 360         * cpu.c (cpu_add_commas): Remove extra static.
 361
 362 Thu Oct 12 11:35:53 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 363
 364         * Makefile.in (psim.o): Now that inlines are turned on, make
 365         psim.o depend on all sources.
 366
 367         * cpu.c (cpu_add_commas): New function to format a long with
 368         commas.
 369         (cpu_print_info): Use it to print number_of_insns.
 370
 371         * ppc-endian.c (SWAP_n): New macros to speed up byte swapping for
 372         2, 4, and 8 bytes.
 373         (ENDIAN_N): If both target and host byte orders are known, don't
 374         bother testing CURRENT_{TARGET,HOST}_BYTE_ORDER.
 375
 376         * ppc-endian.h (target specific H2T_n/T2H_n macros): Remove #if 0
 377         to allow target specific H2T_n/T2H_n macros to be used.
 378         (htonl, ntohl): If compiled on a 486 by GCC and WITH_BSWAP is
 379         non-zero, redefine the htonl/ntohl macros to use the BSWAP instead
 380         of the 3 instruction sequence that runs on 386s.
 381
 382         * std-config.h (WITH_{HOST,TARGET}_BYTE_ORDER): Don't override if
 383         specified on the compile line.
 384         (WITH_BSWAP): If not defined, define as 0.
 385
 386         * Makefile.in (INLINE_CFLAGS): Add -DDEFAULT_INLINE=2 to add
 387         default inline support.  Pass INLINE_CFLAGS when compiling.
 388
 389         * devices.{h,c} (unimp_device_ioctl): Use STATIC_DEVICES, not
 390         INLINE_DEVICES since GCC doesn't like inline functions that
 391         accept variable arguments.
 392         (stack_ioctl_callback): Make function just static because GCC
 393         doesn't like inline functions that accept variable arguments.
 394
 395         * devices.h (STATIC_DEVICES): Define as empty if not defined.
 396
 397         * inline.c: Correct pathnames of included C files to match current
 398         implementation.
 399
 400         * inline.h (STATIC_DEVICES): If DEVICES_INLINE is defined to be
 401         non-zero, define STATIC_DEVICES to be static.
 402
 403         * std-config.h (INLINE): If GNU C and optimizing, define this as
 404         __inline__.
 405         (DEFAULT_INLINE): If not defined, define as 0.
 406         (ENDIAN_INLINE): If not defined, define as DEFAULT_INLINE.
 407         ({CORE,VM,CPU,EVENTS,REGISTERS,INTERRUPTS}_INLINE): Ditto.
 408         ({SPREG,IDECODE}_INLINE): Ditto.
 409
 410 Wed Oct 11 17:13:15 1995  Andrew Cagney  <cagney@highland.com.au>
 411
 412         * ppc-instructions: Initial cut of floating point suport added.
 413         Of note include - use of host IEEE floating point instructions,
 414         use of PowerPC manual pseudo code to handle the FPSCR.  It is not
 415         currently a pretty sight.
 416
 417         * memory_map.h, memory_map.c, memory_map_n.h, core.h, core.c:
 418         merge into core.h, core.c, core_n.h. The type memory_map replaced
 419         with core_map.  This removes a level of pointer indirection when
 420         translating an address.
 421
 422         * memory_map.h, memory_map.c, memory_map_n.h: delete.
 423
 424         * Makefile.in et.al (sorry): tweek to use new core, core_map and
 425         core.h.
 426
 427 Wed Oct 11 12:10:26 1995  Andrew Cagney  <cagney@highland.com.au>
 428
 429         * sim_calls.c, main.c: Add -g (trace_gdb) option, add tracing to
 430         most of the other functions in sim_calls.c.
 431
 432         * basics.h (CONCAT3), memory_map.c, memory_map_n.h, Makefile.in:
 433         Add macros to better cover up `generic' code.  Makes it possible
 434         to step through the generic code!
 435
 436         * vm.c, vm_n.h, Makefile.in: ditto
 437
 438 Tue Oct 10 15:42:59 1995  Andrew Cagney  <cagney@highland.com.au>
 439
 440         * devices.h, devices.c, memory_map.h, memory_map.c: Changed
 441         callback interface so that there is a read/write buffer but no
 442         read/write_word.  VEA default memory read/write handler sometimes
 443         couldn't resolve an access and of those some were for a memory
 444         fault and some were because gdb was making a bogus request.
 445
 446         * devices.h, devices.c, memory_map.h, memory_map.c, vm.h, vm.c:
 447         eliminate transfer_mode (raw or cooked) parameter from read/write
 448         buffer.
 449
 450 Fri Oct  6 20:23:56 1995  Andrew Cagney  <cagney@highland.com.au>
 451
 452         * ppc-instructions (fmul, fmuls): correct instruction format - had
 453         FRB instead of FRC.
 454
 455 Wed Oct  4 17:31:12 1995  Andrew Cagney  <cagney@highland.com.au>
 456
 457         * psim.c, device_tree.h, device_tree.c, devices.c (printd_*,
 458         scand_*): new functions to parse/print fields in device names
 459         while hiding any machine dependency.
 460
 461         * devices.c, psim.c: Change the stack init code so that it is
 462         handled by a device.  Arguments passed across using a device ioctl
 463         (hack).
 464
 465         * devices.h, devices.c: device ioctl callback changed to allow a
 466         variable number of arguments.  This gives greater flexability and
 467         greater chance of bugs.
 468
 469 Tue Oct  3 22:01:56 1995  Andrew Cagney  <cagney@highland.com.au>
 470
 471         * main.c (printf_filtered, error): Missing va_end() to close off
 472         variable argument use.
 473
 474         * Makefile.in (tmp-gencode): comment out hack to get around some
 475         versions of make not handling files being created as side-effects.
 476
 477         * gen.c (lf_open): Add -n (real_file_name) option.  Specifies an
 478         alternative file name to use in output files for things like #line
 479         macros.
 480
 481         Makefile.in (tmp-gencode): Use gen -n so that debug info is
 482         correct.
 483
 484         * Makefile.in (TARGETLIB): Use this instead of libsim.a in the
 485         Makefile.
 486
 487 Sat Oct  7 22:40:59 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 488
 489         * sim_calls.c (sim_set_callbacks): Define new function.
 490
 491 Fri Oct  6 17:23:10 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 492
 493         * psim.c (psim_print_info): Print exit status or signal number.
 494
 495 Mon Oct  2 11:46:37 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 496
 497         * cpu.c (struct _cpu): Add number_of_insns field to trace how many
 498         instructions are executed.
 499         (cpu_increment_number_of_insns): New function to increment the
 500         number of instructions issued.
 501         (cpu_get_number_of_insns): New function to return the number of
 502         instructions issued.
 503         (cpu_print_info): New function to print cpu related information.
 504         At present, print the number of instructions executed.
 505
 506         * gen_idecode_c: Emit call to cpu_increment_number_of_insns within
 507         idecode_issue.
 508
 509         * psim.c (psim_print_info): New function to iterate over each of
 510         the CPU's calling cpu_print_info.
 511
 512         * psim.h,cpu.h: Add new declarations.
 513
 514         * sim_calls.c (sim_open): Add argument processing to add the same
 515         switches main.c accepts for the standalone processor.
 516         (sim_close): Call psim_print_info if -I.
 517
 518         * main.c (main): Add comment saying to update sim_calls.c when
 519         adding switches.  Add -I to call psim_print_info when done.
 520         (usage): Update usage message.
 521
 522 Sun Oct  1 13:52:59 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 523
 524         * main.c (printf_filtered): Correct to match new prototype.
 525
 526 Sat Sep 30 20:47:05 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 527
 528         * sim_callbacks.h (printf_filtered): Correct prototype.
 529
 530 Thu Sep 21 16:26:49 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 531
 532         * device_tree.c (OEA_MEMORY_SIZE): Define if not defined to
 533         0x100000.
 534         (clayton_memory_size): Define as OEA_MEMORY_SIZE.
 535
 536         * std-config.h (WITH_TRACE): Default to 1 now.
 537
 538         * psim.c (write_stack_arguments): Don't write any stack arguments
 539         if OEA.
 540
 541         * main.c (main): Switch to using getopt.  Make -p also set
 542         trace_semantics.  Make -a turn on all trace flags.  Make -C turn
 543         on console tracing.
 544
 545         * device_tree.c (create_option_device_node): Assume a program is
 546         OEA if the start address is < 4096, not just == 0.
 547
 548 Wed Sep 20 13:36:06 1995  Ian Lance Taylor  <ian@cygnus.com>
 549
 550         * Makefile.in (maintainer-clean): New synonym for realclean.
 551
 552 Sun Sep 10 10:23:56 1995  Michael Tiemann  <tiemann@axon.cygnus.com>
 553
 554         * registers.c (register_description): Add gdb synonyms for cr
 555         (cnd) and msr (ps).
 556
 557 Fri Sep  8 13:16:10 1995  Ian Lance Taylor  <ian@cygnus.com>
 558
 559         * Makefile.in (install): Don't install in $(tooldir).
 560
 561         * configure.in: Call AC_CONFIG_HEADER.  Don't try to use
 562         bfd/hosts/*.h file or bfd/config/*.mh file.  Call AC_PROG_CC and
 563         AC_PROG_RANLIB.  Substitute in values for CFLAGS, HDEFINES, AR,
 564         and CC_FOR_BUILD.  Call AC_CHECK_HEADERS for various header files.
 565         Touch stamp.h if creating config.h.
 566         * configure: Rebuild.
 567         * config.in: New file, created by autoheader.
 568         * Makefile.in (AR): Define as @AR@.
 569         (CC): New variable, defined as @CC@.
 570         (CFLAGS): Define as @CFLAGS@.
 571         (CC_FOR_BUILD): New variable, defined as @CC_FOR_BUILD@.
 572         (RANLIB): Define as @RANLIB@.
 573         (HDEFINES, TDEFINES): New variables.
 574         (@host_makefile_frag@): Remove.
 575         (mostlyclean): Make the same as clean, not distclean.
 576         (clean): Remove config.log.
 577         (distclean): Remove config.h and stamp-h.
 578         (Makefile): Don't depend upon @frags@.  Just rebuild Makefile when
 579         invoking config.status.
 580         (config.h, stamp-h): New targets.
 581         (gen, gen.o): Build with CC_FOR_BUILD, not CC.
 582         (ppc-config.h): Rename from old config.h build.
 583         * (basics.h,gen.c,ppc-endian.c,psim.c): Include ppc-config.h.
 584
 585 Fri Sep  8 09:51:03 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 586
 587         * configure{,.in}: Don't include sysdep.h from bfd, since bfd no
 588         longer provides it.
 589         * basics.h (sysdep.h): Don't include it.
 590         * Makefile.in (BASICS_H): Remove sysdep.h.
 591
 592 Wed Sep  6 13:25:42 1995  Andrew Cagney  <cagney@highland.com.au>
 593
 594         * core.c (core_add_data): First growth of bss was being put at
 595         wrong address (0) instead of &end.
 596
 597         * core.c (core_add_stack, core_add_data): Was not handling case
 598         where bss/stack is grown across the current end-of-{bss,stack}.
 599
 600 Wed Sep  6 00:46:10 1995  Andrew Cagney  <cagney@highland.com.au>
 601
 602         * system.c (system_call): Fix SYS_break - was aligning bss to a
 603         page boundary instead of just an 8 byte one; On first call sbrk(0)
 604         != sbrk(0).
 605
 606 Thu Aug 24 14:48:54 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 607
 608         * Makefile.in (install): Fix install rule.
 609
 610 Tue Aug 22 09:31:18 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 611
 612         * system.c (system_call): Add read support.
 613
 614         * main.c (main): -t sets trace_device_tree.  Correct usage message
 615         to current reality.
 616
 617         * device_tree.c (update_memory_node_for_section): Make tracing
 618         output line up.  If not code or readonly, assume that the section
 619         is a data section and has read/write permissions.  Add readonly
 620         support.
 621
 622         * core.c (create_core_from_addresses): Print end address in traces
 623         and make tracing output line up.
 624
 625         * Makefile.in: Rewrite from Makefile to work with the Cygnus
 626         environment, and support compiling in a different directory than
 627         the sources reside in.
 628
 629         * ppc-endian.h: Rename from endian.h so that it doesn't get
 630         confused with /usr/include/sys/endian.h on Linux.  Add Linux
 631         endian support.
 632
 633         * ppc-endian.c: Rename to be consistant with ppc-endian.h.
 634         Include ppc-endian.h, not endian.h.
 635
 636         * basics.h (sysdep.h): Include sysdep.h that configure makes.
 637         Include ppc-endian.h, not endian.h.
 638
 639         * std-config.h: Rename from ppc-config.  Put #ifndefs around most
 640         configuration macros, so they can be overridden via CFLAGS.  By
 641         default, turn off tracing.
 642
 643         * configure.in: Clone from other simulator targets.
 644         * configure: Generate via autoconf from configure.in.
 645
 646 Sat Aug 19 09:05:32 1995  Andrew Cagney  <cagney@highland.com.au>
 647
 648         * ppc-instructions: fix srawi (was geting XER[CA] real wrong).
 649
 650         * interrupts.c (data_storage_interrupt): allow stack to grow by
 651         upto one MB per increment.
 652
 653         * ppc-instructions: divw was computing rA / rA not rA / rB
 654
 655         * main.c (main): really stupid. Wasn't exiting with correct status
 656
 657 Fri Aug 18 00:38:01 1995  Andrew Cagney  <cagney@highland.com.au>
 658
 659         * system.c (system_call): add system calls kill(2) and getpid(2).
 660
 661         * main.c (main): Check/return exit status when simulation
 662         finishes.
 663
 664 Thu Aug 17 14:29:18 1995  Andrew Cagney  <cagney@highland.com.au>
 665
 666         * device_tree.c (create_option_device_node): Alignment rules (at
 667         least for the moment) now are for strict alignment only for LE OEA
 668         mode.  (Because of compiler problems).
 669
 670         * system.c (system_call) SYS_exit: Wasn't exiting with correct status.
 671
 672 Thu Aug 17 01:16:38 1995  Andrew Cagney  <cagney@highland.com.au>
 673
 674         * vm.c (DEFINE_VM_DATA_MAP_WRITE_N): For miss aligned transfer
 675         forgot to return.
 676
 677         * system.c (system_call): didn't page align break argument before
 678         determining increment break increment.
 679
 680         * psim/ppc: Re-arange entire directory structure so that
 681         everything lives in the one directory.  While a pain for cleaning,
 682         makes building across multiple architectures much simpler.
 683
 684         * devices.c, device_tree.c: Added code that provides a simple
 685         illustration of how an interrupt control device could be
 686         implemented.
 687
 688         * devices.c: Added code so that the dumb console device can read
 689         (from stdin) as well as write to stdout.
 690