sim/ppc/ChangeLog

   1 Fri Nov  3 11:37:24 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
   2
   3         * ppc-instructions (data cache instructions): Make all data cache
   4         instructions nops instead of invalid instructions.
   5
   6         * Makefile.in (CONFIG_CFLAGS): Add ALIGNMENT_CFLAGS and
   7         TIMEBASE_CFLAGS which weren't included.
   8
   9 Thu Nov  2 08:54:04 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
  10
  11         * Makefile.in: Uncomment built file dependencies.
  12
  13         * configure.in: Rewrite --enable-sim switch handling to use the
  14         autoconf builtins so it works correctly if the configure or
  15         Makefile.in files are modified and make decides to rebuild
  16         Makefile.  Also document all of the --enable-sim switches
  17         supported.  Check whether getrusage and sys/resource.h are
  18         supported.
  19         * config.in: Regenerate.
  20         * configure: Regenerate.
  21         * Makefile.in: Add support for all of the variables set with
  22         --enable-sim switches.
  23
  24         * Makefile.in (clean): make clean now removes all built sources as
  25         well.
  26
  27         * cpu.c: Use HAVE_STRING_H, HAVE_STRINGS_H, HAVE_UNISTD_H,
  28         HAVE_TIME_H, HAVE_SYS_TIMES_H, HAVE_SYS_RESOURCE_H defined in
  29         the generated config.h.
  30         * debug.c: Ditto.
  31         * device_tree.c: Ditto.
  32         * devices.c: Ditto.
  33         * dgen.c: Ditto.
  34         * emul_netbsd.c: Ditto.
  35         * igen.c: Ditto.
  36         * lf.c: Ditto.
  37         * misc.c: Ditto.
  38         * psim.c: Ditto.
  39         * registers.c: Ditto.
  40         * sim_calls.c: Ditt.
  41         * table.c: Ditto.
  42
  43
  44         * main.c (main): Call psim_print_info with verbose == 2.
  45
  46         * mon.c (mon_print_info): Align the cpu number and number of
  47         instructions fields.  Do not print an instruction category if the
  48         CPU did not execute any of those instructions.  Print out number
  49         of reads and writes.  If getrusage is supported, print out number
  50         of simulated instructins per second.
  51
  52         * configure.in: Add support for --enable-sim-opcode=stupid.
  53         * configure: Regenerate.
  54
  55 Wed Nov  1 23:46:59 1995  Andrew Cagney - aka Noid  <cagney@highland.com.au>
  56
  57         * std-config (INLINE_DEVICE_TREE): Don't inline either of
  58         device_tree.c or devices.c.  There is no significant gain.
  59
  60         * configure.in, Makefile.in: add --enable-sim-icache=[0-9]* and
  61         IGEN_ICACHE macro.
  62
  63 Wed Nov  1 23:46:59 1995  Andrew Cagney - aka Noid  <cagney@highland.com.au>
  64
  65         * igen.c (main), misc.h (target_a2i, i2target), misc.c: Add
  66         functions to convert between target and igen internal bit numbers.
  67         Make IO go through these functions. Add -b (bit size) and -h (high
  68         bit nr) options to igen.  Typical usage would be: ./igen -b 16 -h
  69         15 for a 16 bit instruction format with the msb given a number 15.
  70
  71 Wed Nov  1 22:17:32 1995  Andrew Cagney - aka Noid  <cagney@highland.com.au>
  72
  73         * dgen.c (main): Was outputting optarg even when it was NULL.
  74
  75 Tue Oct 31 23:48:33 1995  Andrew Cagney - aka Noid  <cagney@highland.com.au>
  76
  77         * vm_n.h (vm_data_map_load_N, vm_data_map_store_n), debug.h,
  78         debug.c: Add tracing of load/store unit (virtual) with -t
  79         load-store.
  80
  81 Tue Oct 31 21:44:01 1995  Andrew Cagney - aka Noid  <cagney@highland.com.au>
  82
  83         * std-config.h (WITH_ENVIRONMENT): Add USER_ENVIRONMENT which does
  84         not include things such as the time base and events.
  85
  86         * interrupt.c, sim_calls.c, cpu.h, vm.c, configure.in: Add UEA to
  87         all environment switches for above.
  88
  89         * psim.c (psim_create): ditto - new device tree node name is
  90         /options/environment-architecture with values user, virtual and
  91         operating.
  92
  93 Tue Oct 31 21:31:32 1995  Andrew Cagney - aka Noid  <cagney@highland.com.au>
  94
  95         * ppc-opcode-stupid: Third example of use of opcode table - this
  96         one expands all mtspr/mfspr and branch instructions.  Appears to
  97         give about a 10% gain in performance if everything enabled.  Also
  98         takes about 150mb of swap to build.
  99
 100 Wed Nov  1 10:49:48 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 101
 102         * emul_netbsd.c (do_exit): Print arguments and close parenthesis
 103         if tracing, since exit doesn't go through emul_exit_call.
 104         (do_read): Print arguments if tracing.
 105         (do_write): Ditto.
 106         (do_open): Ditto.
 107         (do_break): Ditto.
 108         (do_kill): Ditto.
 109         (do_dup): Ditto.
 110         (do_sigprocmask): Replace trace with printing arguments if
 111         tracing.
 112         (do_ioctl): Print arguments if tracing.
 113         (do_umask): Ditto.
 114         (do_dup2): Ditto.
 115         (do_fcntl): Ditto.
 116         (do_gettimeofday): Ditto.
 117         (do_getrusage): Ditto.
 118         (do_fstatfs): Ditto.
 119
 120         * filter_filename.c: New file to provide filter_filename to strip
 121         the directory prefix from a file.
 122         * filter_filename.h: New include file to declare filter_filename.
 123
 124         * debug.h: Include filter_filename.h.
 125         (TRACE,DTRACE,ERROR): Use filter_filename on __FILE__.
 126
 127         * misc.h: Include filter_filename.h.
 128         (ASSERT): Use filter_filename on __FILE__.
 129
 130         * igen.c (lf_print_my_prefix): Use filter_filename on the filename
 131         argument.
 132
 133         * Makefile.in: Add filter_filename support.
 134
 135         * ppc-instructions (dcbi, icbi): Make these NOPs rather than
 136         invalid instructions.
 137
 138         * configure.in: Add support for more --enable-sim-* switches.
 139         Use config.make and config.hdr to write to Makefile and config.h
 140         respectively.  Don't rewrite Makefile, just append to it.
 141         * configure: Regenerate.
 142         * config.{make,hdr}: New shell scripts.
 143
 144         * Makefile.in: Remove all variables set by configure.in.
 145         (psim.o): Depend on $(BUILT_SRC) also.
 146
 147         * emul_netbsd.c (do_gettimeofday,do_getrusage): When comparing an
 148         integer, use 0, not NULL.
 149
 150 Tue Oct 31 15:20:04 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 151
 152         * configure.in: Add support for --enable-sim-inline,
 153         --enable-sim-bswap, --enable-sim-cflags, --enable-sim-complex,
 154         --enable-sim-switch, --enable-sim-duplicate, --enable-sim-filter,
 155         and --enable-sim-endian switch to control various Makefile
 156         variables.
 157         * configure: Regenerate from configure.in.
 158         * Makefile.in: Add various Make variables that the various
 159         switches alter.
 160
 161         * std-config.h (DEFAULT_INLINE): Don't set this to 2 if using GCC
 162         and optimizing by default.
 163
 164 Fri Oct 27 19:26:27 1995  Andrew Cagney  <cagney@highland.com.au>
 165
 166         * bits.h (ROTL32, ROTL64): Were functions, made them macros, now
 167         make them functions again.  Appears 2.6.3 is confused by just a
 168         macro.
 169
 170 Thu Oct 26 18:31:58 1995  Andrew Cagney  <cagney@highland.com.au>
 171
 172         * ppc-endian.c (SWAP_8): Fix 8 byte swap!
 173
 174         * psim.c (psim_create): Not correctly checking that runtime
 175         configuration of things like ENDIAN, ENVIRONMENT and ALIGNMENT
 176         matched the compiled in ones.
 177
 178         * debug.h (ITRACE), igen.c: Tidy up more tracing flags -
 179         trace_semantics is now different to trace_idecode, the former
 180         checks the cache.
 181
 182 Tue Oct 24 21:54:13 1995  Andrew Cagney  <cagney@highland.com.au>
 183
 184         * ppc-instructions (mtsrin): Missing instruction
 185         * ppc-instructions (mfsrin): Missing instruction
 186         * ppc-instructions (eieio): Missing instruction
 187
 188 Tue Oct 24 20:55:29 1995  Andrew Cagney  <cagney@highland.com.au>
 189
 190         * build-psim: New shell script - see internals for usage,
 191         simplifies the process of building custom simulators.
 192
 193 Mon Oct 23 23:48:59 1995  Andrew Cagney  <cagney@highland.com.au>
 194
 195         * std-config.h (SEMANTICS_INLINE): Tidy up notes on each of the
 196         INLINE macros.  Make SEMANTICS_INLINE == 1 if DEFAULT_INLINE == 2.
 197         Don't use DEFAULT_INLINE to define REGISTERS_INLINE DEVICES_INLINE
 198         DEVICE_TREE_INLINE or INTERRUPTS_INLINE as none of these are on
 199         the instruction or data critical paths.
 200
 201         * FIXME: need to set up OS_EMUL_INLINE/EMUL_GENERIC_INLINE but
 202         not on critical path.
 203
 204         * FIXME: devices.c/emul_netbsd.c would benefit (slightly) from
 205         the inclusion of device_tree.c/emul_generic.c.
 206
 207 Mon Oct 23 00:31:50 1995  Andrew Cagney  <cagney@highland.com.au>
 208
 209         * os_emul.[hc], emul_generic.[hc], emul_netbsd.[hc]: replace
 210         system.[hc].  Start of suport for multiple emulations and
 211         emulation state (os_emul object).
 212
 213         * emul_generic.[hc]: Start of code to implement proper system call
 214         tracing (from spy).
 215
 216 Sun Oct 22 21:33:51 1995  Andrew Cagney  <cagney@highland.com.au>
 217
 218         * cpu.h, cpu.c (cpu_init): New function, zero the registers before
 219         the processor is started. Fixes problem of registers being
 220         undefined when restarting from within gdb.
 221
 222         * cpu.h, cpu.c (cpu_flush_icache): New function, flushes the
 223         instruction cache (if present).  Fixes problem of cpu caching gdb
 224         breakpoint instructions.
 225
 226         FIXME: PSIM sometimes aborts calling error(), it should instead
 227         call sim_error() say which takes care of housekeeping such as
 228         saving the CIA before calling error.
 229
 230         * NOTE: cpu_flush_cache() instead of cpu_synchronize_context() is
 231         used when restarting a simulation because the latter has the
 232         unwanted side effect (well I as a kernel hacker think it is) of
 233         performing an isync when the instruction stream doesn't contain
 234         one.
 235
 236 Sun Oct 22 19:27:48 1995  Andrew Cagney  <cagney@highland.com.au>
 237
 238         * mon.h (new), mon.c (new), std-config.h (WITH_MON): Performance
 239         monitoring module. Counts both instructions issued and
 240         load/stores.
 241
 242         * NOTE: mon does not contain to count instruction loads as this
 243         information is already available from the mon_issue() hook.
 244
 245         * FIXME: mon doesn't have access to register usage information.
 246         This is needed if the user wants to monitor things like register
 247         stalls.
 248
 249         * igen.c (lf_print_c_semantic), vm_n.h: Add counting code.
 250
 251         * psim.h, psim.c (psim_create), cpu.h, cpu.c (cpu_create): Attach
 252         a common monitor to each of the cpus. Delete
 253         cpu_increment_number_of_insns() and cpu_get_number_of_insns()
 254         replaced by copied code in mon.[hc].
 255
 256 Sun Oct 22 18:42:45 1995  Andrew Cagney  <cagney@highland.com.au>
 257
 258         * sim_calls.c, main.c, psim.c (psim_create): always create
 259         `WITH_SMP' cpus.  The actual number of CPU's active in a
 260         simulation run is taken from the device node: /init/smp (an
 261         integer). WITH_SMP changed to 2 (remember to put it back to 0).
 262
 263 Fri Oct 20 17:26:54 1995  Andrew Cagney  <cagney@highland.com.au>
 264
 265         * system.c: More system call emulation.  If code appears NetBSD
 266         specific, make conditional to being compiled on a NetBSD system
 267         (sigh).
 268
 269 Wed Oct 18 23:02:20 1995  Andrew Cagney  <cagney@highland.com.au>
 270
 271         * Makefile.in, gen.c(delete), igen.c(new), dgen.c(new),
 272         lf.[ch](new), table.[ch](new): Split into two generators - igen
 273         that outputs the instruction tables and dgen that outputs the spr
 274         tables.  Add -f (filter out) flag to igen to filter out certain
 275         instructions (ex 64 bit ones) from the created tables.  Include
 276         $(LIBIBERTY_LIB) in link options in case host lacks some libc
 277         functions.
 278
 279         * NOTE: igen, since it was originally written for the
 280         PowerPC/RS6000, things the MSB is 0 and the LSB is 63{31}.
 281
 282         * Makefile.in, std-config.h, ppc-cache-rules(new),
 283         ppc-opcode-complex(new), ppc-opcode-simple(new): (for igen) Create
 284         cache-rule and opcode-rule tables from macros found std-config.h.
 285         Delete corresponding macro's from std-config.h.
 286
 287         * FIXME: under this new igen scheme, when playing around with igen
 288         options, you'll find that depenencies don't work very well.
 289
 290         * igen.c (gen_itable_c, gen_itable_h), Makefile.in: code to output
 291         an table of all the instructions.  Code to output a type
 292         enumerating all the instructin names.
 293
 294         * igen.c(lf_print_c_semantic): Move call to increment instruction
 295         counter so that it occures _after_ the instruction has been fully
 296         validated, was double counting illegal/invalid instructions.  Add
 297         conditional so only compiled in when WITH_PROFILE enabled (enabled
 298         by default).
 299
 300         * igen.c, cpu.h, cpu.c(cpu_increment_number_of_insns): Include
 301         itable.h, count individual instruction types not just total,
 302         adjust reporting functions to output this.
 303
 304         * ppc-instructions (64 bit Load Doubleword with Update Indexed):
 305         Had 32./ instead of 31./
 306
 307         * ppc-instructions (64 bit Store Double Word Conditional Indexed):
 308         bitrot - updated to use newer CR register operators.
 309
 310         * ppc-instructions (64bit Floating Convert from Integer
 311         Doubleword): Correct call to Round_Float().
 312
 313 Mon Oct 16 00:31:20 1995  Andrew Cagney  <cagney@highland.com.au>
 314
 315         * basics.h: #include "sim_callbacks.h" earlier so that its
 316         prototypes are declared in all other header files.
 317
 318         * bits.h, bits.c, idecode_expression.h (ROTL32, ROTL64): Update
 319         doc in bits.h, remove dead code in bits.c, move ROTL32/ROTL64 into
 320         bits.h.
 321
 322         * FIXME: the bits.h/bits.c macro's should be replaced with
 323         (inline) c functions.
 324
 325         * cpu.c(cpu_add_commas), device_tree.h, device_tree.c(scand_*):
 326         Add size of buffer argument to functions writing a string into a
 327         buffer.  Check for buffer overflow.
 328
 329 Sun Oct 15 22:16:11 1995  Andrew Cagney  <cagney@highland.com.au>
 330
 331         * devices.h, devices.c, debug.h, debug.c: add macro's for tracing
 332         of each device.  Make parameter names consistent so macros work.
 333         Use macro's in device functions.
 334
 335         * device_tree.c, devices.h, devices.c: include path to device in a
 336         devices node when creating it.
 337
 338         * device_tree.c, debug.h, debug.c: Add tracing of `device-tree'.
 339
 340         * core.c: add tracing of core-device, adjust parameter names in
 341         core functions to be consistent with those in devices*.
 342
 343 Sun Oct 15 20:33:20 1995  Andrew Cagney  <cagney@highland.com.au>
 344
 345         * debug.h, debug.c (trace_option): New function. Parses the trace
 346         option, updating the trace array.
 347
 348         * debug.h, debug.c (trace_usage): New function. Outputs the list
 349         of all possible trace options.
 350
 351         * sim_calls.c (sim_open), main.c (main): Use new trace_option() to
 352         parse trace options specified with the simpler -t flag.  Adjust
 353         usage.
 354
 355         * FIXME: basic parsing of command line options is still duplicated
 356         by main.c and sim_calls.c
 357
 358 Thu Oct 26 10:42:28 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 359
 360         * Makefile.in (clean): Delete *.i and *.out files.
 361
 362         * ppc-endian.c (SWAP_n): Add SET argument to allow use of SWAP
 363         macros for either assignment or return.  Fix SWAP_8 to use a
 364         union, and two SWAP_4's.  Delete SWAP_N, since nobody uses it now.
 365         (ENDIAN_N): Add SET argument to SWAP_n calls.  Delete macro defs
 366         that hardwired swapping on/off, let optimizer delete dead code.
 367
 368         * main.c (main): Add printf that we caught a signal and print out
 369         the failing address.
 370
 371 Thu Oct 19 21:43:39 1995  Fred Fish  <fnf@fishfood.amigalib.com>
 372
 373         * Makefile.in:  Remove tabs from otherwise empty line.
 374         Confuses many non-GNU versions of "make".
 375
 376 Wed Oct 18 08:51:25 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 377
 378         * Makefile.in (clean): Delete files produced by gen.
 379
 380 Mon Oct 16 17:34:24 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 381
 382         * gen.c (lf_print_c_semantic_function): Move counting # of
 383         instructions here so it works with caching.
 384         (gen_idecode_c): Move from here.
 385
 386 Wed Oct 11 17:13:15 1995  Andrew Cagney  <cagney@highland.com.au>
 387
 388         * gen.c, ppc-instructions, psim.c: Fix code for generating
 389         cracking instruction cache.  Delete the code that cached just the
 390         result from doing an instruction lookup - this ran slower than no
 391         cache at all.
 392
 393 Fri Oct 13 09:58:43 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 394
 395         * Makefile.in (gen.o): Include $(INLINE_CFLAGS).
 396
 397         * debug.h (ppc_trace): Rename from trace, to avoid a conflict with
 398         TCL when gdb is linked with the simulator.
 399         * debug.c (ppc_trace): Ditto.
 400         * sim_calls.c (sim_open): Change trace -> ppc_trace.
 401         * main.c (main): Ditto.
 402
 403         * cpu.c (cpu_add_commas): Remove extra static.
 404
 405 Thu Oct 12 11:35:53 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 406
 407         * Makefile.in (psim.o): Now that inlines are turned on, make
 408         psim.o depend on all sources.
 409
 410         * cpu.c (cpu_add_commas): New function to format a long with
 411         commas.
 412         (cpu_print_info): Use it to print number_of_insns.
 413
 414         * ppc-endian.c (SWAP_n): New macros to speed up byte swapping for
 415         2, 4, and 8 bytes.
 416         (ENDIAN_N): If both target and host byte orders are known, don't
 417         bother testing CURRENT_{TARGET,HOST}_BYTE_ORDER.
 418
 419         * ppc-endian.h (target specific H2T_n/T2H_n macros): Remove #if 0
 420         to allow target specific H2T_n/T2H_n macros to be used.
 421         (htonl, ntohl): If compiled on a 486 by GCC and WITH_BSWAP is
 422         non-zero, redefine the htonl/ntohl macros to use the BSWAP instead
 423         of the 3 instruction sequence that runs on 386s.
 424
 425         * std-config.h (WITH_{HOST,TARGET}_BYTE_ORDER): Don't override if
 426         specified on the compile line.
 427         (WITH_BSWAP): If not defined, define as 0.
 428
 429         * Makefile.in (INLINE_CFLAGS): Add -DDEFAULT_INLINE=2 to add
 430         default inline support.  Pass INLINE_CFLAGS when compiling.
 431
 432         * devices.{h,c} (unimp_device_ioctl): Use STATIC_DEVICES, not
 433         INLINE_DEVICES since GCC doesn't like inline functions that
 434         accept variable arguments.
 435         (stack_ioctl_callback): Make function just static because GCC
 436         doesn't like inline functions that accept variable arguments.
 437
 438         * devices.h (STATIC_DEVICES): Define as empty if not defined.
 439
 440         * inline.c: Correct pathnames of included C files to match current
 441         implementation.
 442
 443         * inline.h (STATIC_DEVICES): If DEVICES_INLINE is defined to be
 444         non-zero, define STATIC_DEVICES to be static.
 445
 446         * std-config.h (INLINE): If GNU C and optimizing, define this as
 447         __inline__.
 448         (DEFAULT_INLINE): If not defined, define as 0.
 449         (ENDIAN_INLINE): If not defined, define as DEFAULT_INLINE.
 450         ({CORE,VM,CPU,EVENTS,REGISTERS,INTERRUPTS}_INLINE): Ditto.
 451         ({SPREG,IDECODE}_INLINE): Ditto.
 452
 453 Wed Oct 11 17:13:15 1995  Andrew Cagney  <cagney@highland.com.au>
 454
 455         * ppc-instructions: Initial cut of floating point suport added.
 456         Of note include - use of host IEEE floating point instructions,
 457         use of PowerPC manual pseudo code to handle the FPSCR.  It is not
 458         currently a pretty sight.
 459
 460         * memory_map.h, memory_map.c, memory_map_n.h, core.h, core.c:
 461         merge into core.h, core.c, core_n.h. The type memory_map replaced
 462         with core_map.  This removes a level of pointer indirection when
 463         translating an address.
 464
 465         * memory_map.h, memory_map.c, memory_map_n.h: delete.
 466
 467         * Makefile.in et.al (sorry): tweek to use new core, core_map and
 468         core.h.
 469
 470 Wed Oct 11 12:10:26 1995  Andrew Cagney  <cagney@highland.com.au>
 471
 472         * sim_calls.c, main.c: Add -g (trace_gdb) option, add tracing to
 473         most of the other functions in sim_calls.c.
 474
 475         * basics.h (CONCAT3), memory_map.c, memory_map_n.h, Makefile.in:
 476         Add macros to better cover up `generic' code.  Makes it possible
 477         to step through the generic code!
 478
 479         * vm.c, vm_n.h, Makefile.in: ditto
 480
 481 Tue Oct 10 15:42:59 1995  Andrew Cagney  <cagney@highland.com.au>
 482
 483         * devices.h, devices.c, memory_map.h, memory_map.c: Changed
 484         callback interface so that there is a read/write buffer but no
 485         read/write_word.  VEA default memory read/write handler sometimes
 486         couldn't resolve an access and of those some were for a memory
 487         fault and some were because gdb was making a bogus request.
 488
 489         * devices.h, devices.c, memory_map.h, memory_map.c, vm.h, vm.c:
 490         eliminate transfer_mode (raw or cooked) parameter from read/write
 491         buffer.
 492
 493 Fri Oct  6 20:23:56 1995  Andrew Cagney  <cagney@highland.com.au>
 494
 495         * ppc-instructions (fmul, fmuls): correct instruction format - had
 496         FRB instead of FRC.
 497
 498 Wed Oct  4 17:31:12 1995  Andrew Cagney  <cagney@highland.com.au>
 499
 500         * psim.c, device_tree.h, device_tree.c, devices.c (printd_*,
 501         scand_*): new functions to parse/print fields in device names
 502         while hiding any machine dependency.
 503
 504         * devices.c, psim.c: Change the stack init code so that it is
 505         handled by a device.  Arguments passed across using a device ioctl
 506         (hack).
 507
 508         * devices.h, devices.c: device ioctl callback changed to allow a
 509         variable number of arguments.  This gives greater flexability and
 510         greater chance of bugs.
 511
 512 Tue Oct  3 22:01:56 1995  Andrew Cagney  <cagney@highland.com.au>
 513
 514         * main.c (printf_filtered, error): Missing va_end() to close off
 515         variable argument use.
 516
 517         * Makefile.in (tmp-gencode): comment out hack to get around some
 518         versions of make not handling files being created as side-effects.
 519
 520         * gen.c (lf_open): Add -n (real_file_name) option.  Specifies an
 521         alternative file name to use in output files for things like #line
 522         macros.
 523
 524         Makefile.in (tmp-gencode): Use gen -n so that debug info is
 525         correct.
 526
 527         * Makefile.in (TARGETLIB): Use this instead of libsim.a in the
 528         Makefile.
 529
 530 Sat Oct  7 22:40:59 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 531
 532         * sim_calls.c (sim_set_callbacks): Define new function.
 533
 534 Fri Oct  6 17:23:10 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 535
 536         * psim.c (psim_print_info): Print exit status or signal number.
 537
 538 Mon Oct  2 11:46:37 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 539
 540         * cpu.c (struct _cpu): Add number_of_insns field to trace how many
 541         instructions are executed.
 542         (cpu_increment_number_of_insns): New function to increment the
 543         number of instructions issued.
 544         (cpu_get_number_of_insns): New function to return the number of
 545         instructions issued.
 546         (cpu_print_info): New function to print cpu related information.
 547         At present, print the number of instructions executed.
 548
 549         * gen_idecode_c: Emit call to cpu_increment_number_of_insns within
 550         idecode_issue.
 551
 552         * psim.c (psim_print_info): New function to iterate over each of
 553         the CPU's calling cpu_print_info.
 554
 555         * psim.h,cpu.h: Add new declarations.
 556
 557         * sim_calls.c (sim_open): Add argument processing to add the same
 558         switches main.c accepts for the standalone processor.
 559         (sim_close): Call psim_print_info if -I.
 560
 561         * main.c (main): Add comment saying to update sim_calls.c when
 562         adding switches.  Add -I to call psim_print_info when done.
 563         (usage): Update usage message.
 564
 565 Sun Oct  1 13:52:59 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 566
 567         * main.c (printf_filtered): Correct to match new prototype.
 568
 569 Sat Sep 30 20:47:05 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 570
 571         * sim_callbacks.h (printf_filtered): Correct prototype.
 572
 573 Thu Sep 21 16:26:49 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 574
 575         * device_tree.c (OEA_MEMORY_SIZE): Define if not defined to
 576         0x100000.
 577         (clayton_memory_size): Define as OEA_MEMORY_SIZE.
 578
 579         * std-config.h (WITH_TRACE): Default to 1 now.
 580
 581         * psim.c (write_stack_arguments): Don't write any stack arguments
 582         if OEA.
 583
 584         * main.c (main): Switch to using getopt.  Make -p also set
 585         trace_semantics.  Make -a turn on all trace flags.  Make -C turn
 586         on console tracing.
 587
 588         * device_tree.c (create_option_device_node): Assume a program is
 589         OEA if the start address is < 4096, not just == 0.
 590
 591 Wed Sep 20 13:36:06 1995  Ian Lance Taylor  <ian@cygnus.com>
 592
 593         * Makefile.in (maintainer-clean): New synonym for realclean.
 594
 595 Sun Sep 10 10:23:56 1995  Michael Tiemann  <tiemann@axon.cygnus.com>
 596
 597         * registers.c (register_description): Add gdb synonyms for cr
 598         (cnd) and msr (ps).
 599
 600 Fri Sep  8 13:16:10 1995  Ian Lance Taylor  <ian@cygnus.com>
 601
 602         * Makefile.in (install): Don't install in $(tooldir).
 603
 604         * configure.in: Call AC_CONFIG_HEADER.  Don't try to use
 605         bfd/hosts/*.h file or bfd/config/*.mh file.  Call AC_PROG_CC and
 606         AC_PROG_RANLIB.  Substitute in values for CFLAGS, HDEFINES, AR,
 607         and CC_FOR_BUILD.  Call AC_CHECK_HEADERS for various header files.
 608         Touch stamp.h if creating config.h.
 609         * configure: Rebuild.
 610         * config.in: New file, created by autoheader.
 611         * Makefile.in (AR): Define as @AR@.
 612         (CC): New variable, defined as @CC@.
 613         (CFLAGS): Define as @CFLAGS@.
 614         (CC_FOR_BUILD): New variable, defined as @CC_FOR_BUILD@.
 615         (RANLIB): Define as @RANLIB@.
 616         (HDEFINES, TDEFINES): New variables.
 617         (@host_makefile_frag@): Remove.
 618         (mostlyclean): Make the same as clean, not distclean.
 619         (clean): Remove config.log.
 620         (distclean): Remove config.h and stamp-h.
 621         (Makefile): Don't depend upon @frags@.  Just rebuild Makefile when
 622         invoking config.status.
 623         (config.h, stamp-h): New targets.
 624         (gen, gen.o): Build with CC_FOR_BUILD, not CC.
 625         (ppc-config.h): Rename from old config.h build.
 626         * (basics.h,gen.c,ppc-endian.c,psim.c): Include ppc-config.h.
 627
 628 Fri Sep  8 09:51:03 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 629
 630         * configure{,.in}: Don't include sysdep.h from bfd, since bfd no
 631         longer provides it.
 632         * basics.h (sysdep.h): Don't include it.
 633         * Makefile.in (BASICS_H): Remove sysdep.h.
 634
 635 Wed Sep  6 13:25:42 1995  Andrew Cagney  <cagney@highland.com.au>
 636
 637         * core.c (core_add_data): First growth of bss was being put at
 638         wrong address (0) instead of &end.
 639
 640         * core.c (core_add_stack, core_add_data): Was not handling case
 641         where bss/stack is grown across the current end-of-{bss,stack}.
 642
 643 Wed Sep  6 00:46:10 1995  Andrew Cagney  <cagney@highland.com.au>
 644
 645         * system.c (system_call): Fix SYS_break - was aligning bss to a
 646         page boundary instead of just an 8 byte one; On first call sbrk(0)
 647         != sbrk(0).
 648
 649 Thu Aug 24 14:48:54 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 650
 651         * Makefile.in (install): Fix install rule.
 652
 653 Tue Aug 22 09:31:18 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 654
 655         * system.c (system_call): Add read support.
 656
 657         * main.c (main): -t sets trace_device_tree.  Correct usage message
 658         to current reality.
 659
 660         * device_tree.c (update_memory_node_for_section): Make tracing
 661         output line up.  If not code or readonly, assume that the section
 662         is a data section and has read/write permissions.  Add readonly
 663         support.
 664
 665         * core.c (create_core_from_addresses): Print end address in traces
 666         and make tracing output line up.
 667
 668         * Makefile.in: Rewrite from Makefile to work with the Cygnus
 669         environment, and support compiling in a different directory than
 670         the sources reside in.
 671
 672         * ppc-endian.h: Rename from endian.h so that it doesn't get
 673         confused with /usr/include/sys/endian.h on Linux.  Add Linux
 674         endian support.
 675
 676         * ppc-endian.c: Rename to be consistant with ppc-endian.h.
 677         Include ppc-endian.h, not endian.h.
 678
 679         * basics.h (sysdep.h): Include sysdep.h that configure makes.
 680         Include ppc-endian.h, not endian.h.
 681
 682         * std-config.h: Rename from ppc-config.  Put #ifndefs around most
 683         configuration macros, so they can be overridden via CFLAGS.  By
 684         default, turn off tracing.
 685
 686         * configure.in: Clone from other simulator targets.
 687         * configure: Generate via autoconf from configure.in.
 688
 689 Sat Aug 19 09:05:32 1995  Andrew Cagney  <cagney@highland.com.au>
 690
 691         * ppc-instructions: fix srawi (was geting XER[CA] real wrong).
 692
 693         * interrupts.c (data_storage_interrupt): allow stack to grow by
 694         upto one MB per increment.
 695
 696         * ppc-instructions: divw was computing rA / rA not rA / rB
 697
 698         * main.c (main): really stupid. Wasn't exiting with correct status
 699
 700 Fri Aug 18 00:38:01 1995  Andrew Cagney  <cagney@highland.com.au>
 701
 702         * system.c (system_call): add system calls kill(2) and getpid(2).
 703
 704         * main.c (main): Check/return exit status when simulation
 705         finishes.
 706
 707 Thu Aug 17 14:29:18 1995  Andrew Cagney  <cagney@highland.com.au>
 708
 709         * device_tree.c (create_option_device_node): Alignment rules (at
 710         least for the moment) now are for strict alignment only for LE OEA
 711         mode.  (Because of compiler problems).
 712
 713         * system.c (system_call) SYS_exit: Wasn't exiting with correct status.
 714
 715 Thu Aug 17 01:16:38 1995  Andrew Cagney  <cagney@highland.com.au>
 716
 717         * vm.c (DEFINE_VM_DATA_MAP_WRITE_N): For miss aligned transfer
 718         forgot to return.
 719
 720         * system.c (system_call): didn't page align break argument before
 721         determining increment break increment.
 722
 723         * psim/ppc: Re-arange entire directory structure so that
 724         everything lives in the one directory.  While a pain for cleaning,
 725         makes building across multiple architectures much simpler.
 726
 727         * devices.c, device_tree.c: Added code that provides a simple
 728         illustration of how an interrupt control device could be
 729         implemented.
 730
 731         * devices.c: Added code so that the dumb console device can read
 732         (from stdin) as well as write to stdout.
 733