sim/ppc/ChangeLog

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