ChangeLog

   1 2007-06-20  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
   2
   3         * sys/include/param.h: Update version to 0.5.0.
   4
   5         * user/test/fileio/main.c: Added test program for file system.
   6         * user/test/fileio/fslib.c: Likewise.
   7         * user/test/fileio/fslib.h: Likewise.
   8         * user/test/fileio/Makefile: Likewise.
   9
  10         * user/server/fs/*: Adde file system server. This includes VFS
  11         framework, buffer cache, ramfs, devfs, and arfs (archive fs).
  12
  13 2007-06-17  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
  14
  15         * mk/Makefile.inc: Optimized build speed for cygwin.
  16
  17         * configure: Removed dependency to 'sed' and added confiure script
  18         for build process.
  19         * mk/Makefile.inc: Likewise.
  20         * mk/own.mk: Likewise.
  21
  22         * boot/arch/i386/pc/head.s: Changed file name to head.S.
  23
  24 2007-06-16  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
  25
  26         Applied following patches posted by Andrew Dennison.
  27
  28         * dev/power/cpufreq.c: Fixed typos.
  29         * sys/include/system.h: Likewise.
  30         * user/bin/kmon/cmd.c: Likewise.
  31
  32         * mk/Makefile.inc: Added more dependencies and intermediate elf file.
  33         for binary output
  34
  35         * boot/include/types.h: Added C99 types for boot too.
  36
  37         * sys/kern/irq.c (irq_detach): Fixed crash in irq_detach() when not
  38         using an ist.
  39
  40         * dev/include/driver.h: Const correctness, fix timer_delay() prototype
  41         for drivers.
  42         * kern/sys/device.c: Likewise.
  43
  44         * sys/kern/timer.c: Fixed spelling in comment.
  45
  46         * sys/lib/vsprintf.c (vsprintf): support field width for %s.
  47
  48         * convert config to makefile variables and autogenerate config.h.
  49
  50         * convert driver selection to makefile based CONFIG variable.
  51
  52 2007-06-02  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
  53
  54         * mk/prog.mk: Support BSD style makefile for POSIX applications.
  55         PROG and SRCS macro is supported now.
  56
  57 2007-05-02  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
  58
  59         * sys/arch/i386/i386/cpu.h: Removed pad data from desc_p. This
  60         was an obsolete hack for msvc compiler.
  61
  62         * boot/common/elf.c (elf_load): Corrected the macro to get
  63         the kernel load address. phys_to_virt => virt_to_phys.
  64
  65 2007-04-13  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
  66
  67         * sys/include/param.h: Update version to 0.4.3.
  68
  69         * user/test/dvs/dvs.c: Added test case for 50% cpu load for DVS
  70         test tool.
  71
  72 2007-04-12  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
  73
  74         The following 5 changes were applied by Andrew Dennison.
  75
  76         * boot/common/debug.c: (1) Fixed order of header files.
  77         * boot/common/elf.c: Likewise.
  78         * boot/common/main.c: Likewise.
  79
  80         * sys/arch/i386/include/arch.h: (2) Fixed typo.
  81         * sys/arch/i386/include/platform.h: Likewise.
  82
  83         * user/test/Makefile: (3) Modified for i386 specific test tool.
  84
  85         * user/lib/libc/stdlib/getsubopt.c: (4) Fixed build warning.
  86         * user/lib/libc/stdlib/strtol.c: Likewise.
  87         * user/lib/libc/stdlib/strtoul.c: Likewise.
  88
  89         * boot/common/elf.c: (5) Added validation of module symbol while
  90         relocating module.
  91         * boot/include/elf.h: Likewise.
  92
  93 2007-04-09  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
  94
  95         * sys/kern/debug.c: Added "dmesg" framework. The kernel message log
  96         can be checked after system boot with this change. User can get this
  97         message by F9 key on PC platform.
  98         * sys/include/debug.h: Likewise.
  99         * sys/include/param.h: Likewise.
 100         * dev/include/driver.h: Likewise.
 101         * user/include/prex/prex.h: Likewise.
 102         * user/bin/kmon/cmd.c: Likewise.
 103         * conf/config-arm-gba.h: Likewise.
 104         * conf/config-i386-pc.h: Likewise.
 105         * conf/config-i386-nommu.h: Likewise.
 106
 107 2007-04-08  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 108
 109         * sys/kern/sched.c (thread_dpc): Support DPC (Deferred Procedure
 110         Call). The driver can handle an asynchronous callback event at
 111         safer interrupt level.
 112         * sys/kern/device.c: Likewise.
 113         * sys/include/sched.h: Likewise.
 114         * dev/include/driver.h: Likewise.
 115
 116         * dev/power/dvs.c: Optimized voltage scaling algorithm.
 117         * dev/power/cpufreq.c: Likewise.
 118         * dev/power/pm.c: Likewise.
 119
 120 2007-04-07  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 121
 122         * sys/sync/sem.c (sem_post): Fixed a bug in sem_post(). The
 123         thread could not get a semaphore when multiple value is set.
 124
 125         * sys/kern/timer.c: Added timer_hook()/timer_unhook() service
 126         for drivers. The power management or profiling driver can get
 127         a tick event with these services without using timer call-back.
 128         This can reduce the system power consumption.
 129         * sys/kern/device.c: Likewise.
 130         * sys/include/sched.h: Likewise.
 131         * dev/include/driver.h: Likewise.
 132
 133 2007-04-03  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 134
 135         * sys/kern/timer.c (timer_tick): Optimized whole timer related
 136         code to minimize timer jitters of periodic timer. The periodic
 137         threads can be runnable by one thread switch now.
 138         * sys/include/timer.h: Likewise.
 139
 140 2007-03-31  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 141
 142         * sys/kern/timer.c (timer_delay): Changed the return type of
 143         timer_delay() routine to u_long from int.
 144
 145         * user/lib/prex/malloc/malloc.c (free): Fixed a page fault
 146         when malloc/free is called repeatedly. The data was corrupted
 147         for some specific size for allocation.
 148
 149         * sys/kern/thread.c (thread_resume): Modified to return EINVAL
 150         if thread_resume() is called when suspend count was already 0.
 151
 152 2007-03-27  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 153
 154         * */: Replaced all u_int32_t to uint32_t to meet C99 manner.
 155
 156         * sys/kern/system.c (sys_debug): Added checking CAP_DEBUG capability.
 157
 158 2007-03-24  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 159
 160         * sys/*: Kernel code clean up.
 161
 162         * sys/kern/task.c (__task_capable): Modified to define task_capable()
 163         as macro to reduce code size.
 164
 165 2007-03-23  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 166
 167         * sys/sync/mutex.c (mutex_unlock): Fixed mutex_unlock() to
 168         return EPERM error when the lock count was already 0.
 169
 170         * sys/kern/thread.c (thread_schedparam): Removed functions to
 171         set a different time slice to each thread. Because, I will never
 172         use it...
 173         * sys/kern/sched.c: Likewise.
 174         * sys/include/thread.h: Likewise.
 175
 176 2007-03-22  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 177
 178         * user/lib/prex/malloc/malloc.c (free): Fixed free() in libc
 179         to do nothing for free(0).
 180
 181         * user/lib/prex/malloc/malloc.c (malloc): Refined malloc() for
 182         multi-thread applications.
 183         * usre/lib/gen/__isthreaded.c: Likewise.
 184
 185 2007-03-20  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 186
 187         * user/lib/libc/random.c: Added random() in libc.
 188
 189         * user/test/malloc/malloc.c: Added test code for malloc().
 190
 191         * user/test/ipc_mt/ipc_mt.c: Added IPC test tool for multi-threaded
 192         server.
 193
 194 2007-03-18  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 195
 196         * mk/Makefile.inc: Added -fno-stack-protector option for gcc 4.1.
 197         The build error occurred with some distributions which enable
 198         SSP feature of gcc by default.
 199
 200 2007-03-16  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 201
 202         * test/ipc_mt/*: Added IPC test program for multi-threaded server.
 203
 204 2007-03-07  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 205
 206         * user/arch/arm/systrap.h: Fixed syscall trap macro for ARM
 207         processor.
 208         * sys/arch/arm/arm/locore.S: Correct getting SWI number in
 209         system call handler. These two bug was pointed out by Ying Yin.
 210
 211 2007-02-14  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 212
 213         * sys/kern/main.c: Code clean up.
 214         * sys/include/kernel.h: Likewise.
 215
 216         * sys/kern/system.c: Changed the data format of sys_info(). The
 217         kernel information is now compatible with POSIX's utsname.
 218         * sys/kern/sched.c: Likewise.
 219         * sys/include/system.h: Likewise.
 220         * dev/include/driver.h: Likewise.
 221         * user/include/prex/prex.h: Likewise.
 222
 223 2007-02-09  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 224
 225         * sys/kern/device.c: Added reference count for the device object
 226         to avoid the device removal while I/O operations. device_delete()
 227         request will be hold until the target reference count becomes 0.
 228         * sys/include/device.h: Likewise.
 229
 230         * sys/kern/device.c: Added "force" option to device_broadcast
 231         driver service. If this option is specified, we will continue
 232         the event notification even if some driver returns an error.
 233         Otherwise, device_broadcast will quit and return for first
 234         driver error.
 235         * sys/include/device.h: Likewise.
 236
 237 2007-02-08  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 238
 239         * dev/arch/i386/i386/delay.c: Removed a delay driver. This was
 240         changed to generic driver service.
 241         * dev/include/delay.h: Likewise.
 242         * dev/core/main.c: Likewise.
 243         * dev/arch/i386/pc/platform.c: Likewise.
 244         * dev/arch/arm/gba/platform.c: Likewise.
 245
 246 2007-02-06  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 247
 248         * sys/kern/timer.c: Fixed system hang when periodic timer is stopped
 249         with invalid timer object.
 250
 251         * sys/sync/mutex.c (prio_inherit): Added checking max mutex count
 252         to inherit thread priorities. This was added to prevent the risk
 253         of the unexpected heavy loop with preemption disabled. The maximum
 254         count to inherit priority is currently set to 10.
 255
 256 2007-02-03  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 257
 258         * sys/kern/syscall.c: Changed sys_stat() system call to sys_info().
 259         The interface was extended to get thread/device information from
 260         kernel.
 261         * sys/kern/system.c: Likewise.
 262         * sys/include/system.h: Likewise.
 263
 264 2007-01-30  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 265
 266         * sys/kern/timer.c: Fixed the kernel timer code. There was a small
 267         time window that can not handle timer callback. In this case,
 268         the callback request was not processed until next tick event.
 269         * sys/include/timer.h: Likewise.
 270
 271 2007-01-24  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 272
 273         * sys/include/param.h: Update version to 0.4.2.
 274
 275         * sys/kern/main.c: Code clean up.
 276         * sys/kern/syscall.c: Likewise.
 277         * sys/kern/device.c: Likewise.
 278         * sys/include/system.h: Likewise.
 279         * boot/arch/*: Likewise.
 280         * dev/arch/*: Likewise.
 281         * sys/arch/*: Likewise.
 282
 283 2006-12-01  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 284
 285         * sys/arch/arm/arm/umem.c (umem_strnlen): Added 3rd argument
 286         to store string length. The return value was changed to indicate
 287         error code.
 288         * sys/arch/arm/include/arch.h: Likewise.
 289         * sys/arch/i386/i386/locore.S: Likewise.
 290         * sys/arch/i386/include/arch.h: Likewise.
 291
 292 2006-11-29  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 293
 294         * dev/arch/i386/pc/dma.c (dma_alloc): An interrupt was kept
 295         disabled when DMA buffer allocation was failed.
 296
 297 2006-11-17  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 298
 299         * dev/arch/arm/gba/swkbd.c: Changed bitmap format for keyboard
 300         and cursor images in order to shrink its data size.
 301
 302 2006-11-02  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 303
 304         * sys/ipc/object.c (object_create): Fixed the handling of EFAULT
 305         in object_create().
 306
 307 2006-11-02  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 308
 309         * sys/kern/thread.c (thread_terminate): The error code was not
 310         correct in thread_terminate().
 311
 312 2006-10-29  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 313
 314         * sys/mem/vm.c (vm_attribute): Renamed from vm_attrib().
 315         * sys/mem/vm_nommu.c: Likewise.
 316         * sys/kern/task.c: Likewise.
 317         * sys/kern/syscall.c: Likewise.
 318         * sys/include/vm.h: Likewise.
 319         * user/include/prex/prex.h: Likewise.
 320
 321 2006-10-29  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 322
 323         * sys/kern/task.c (task_create): Expanded vm_inherit option of
 324         task_create(). We can use VM_NONE/VM_COPY/VM_SHARE to select the
 325         VM mapping of child task.
 326         * sys/include/task.h: Likewise.
 327         * user/include/prex/prex.h: Likewise.
 328         * user/test/task/task.c: Likewise.
 329
 330 2006-10-29  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 331
 332         * sys/mem/vm_nommu.c (vm_terminate): Fixed the invalid kmem_free()
 333         to deallocate VM regions.
 334
 335 2006-10-20  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 336
 337         * sys/kern/thread.c (thread_load): Fixed a error check of
 338         thread_load(). NULL pointer can be set as stack.
 339
 340         * dev/arch/arm/gba/swkbd.c (kbd_input): Added calling thread dump
 341         by 'select' button on GBA.
 342
 343 2006-10-19  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 344
 345         * sys/mem/vm.c (vm_dump_one): Correct the copy length of strlcpy().
 346
 347 2006-10-05  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 348
 349         * user/lib/prex/malloc/malloc.c (malloc): Refined malloc() library
 350         in user mode. Added data to store the previously used node.
 351
 352 2006-10-04  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 353
 354         * sys/arch/i386/i386/mmu.c (mmu_extract): The end address for
 355         page extraction was not correct.
 356
 357 2006-09-29  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 358
 359         * sys/kern/system.c (sys_debug): Added sys_debug() kernel API.
 360         * sys/kern/syscall.c: Likewise.
 361         * sys/include/debug.h: Likewise.
 362         * user/include/prex/prex.h: Likewise.
 363         * user/lib/prex/syscalls/syscall.h: Likewise.
 364         * user/lib/prex/syscalls/sys_debug.s: Likewise. (new)
 365
 366         * user/bin/kmon/cmd.c: Added some commands to dump kernel objects.
 367
 368 2006-09-22  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 369
 370         * sys/mem/vm_nommu.c (__vm_map): Fixed memory leak when vm_map()
 371         was called two or more times on NOMMU system.
 372
 373 2006-09-21  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 374
 375         * boot/arch/i386/pc/head.s: Updated GDT and selector value
 376         as same with kernel.
 377
 378 2006-09-15  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 379
 380         * sys/kern/thread.c (thread_dump): Fixed the wrong string
 381         pointer for thread dump function.
 382
 383 2006-08-10  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 384
 385         * sys/include/stat.h: Added a kernel release name into the
 386         kernel statistics data. This is used by the uname command.
 387
 388 2006-07-24  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 389
 390         * sys/mem/page.c (page_reserve): Fixed a bug in the page reserve
 391         routine. The reserved size could be incorrect because of
 392         wrong alignment adjustment.
 393
 394 2006-07-9  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 395
 396         * sys/arch/arm/arm/locore.S: Fixed system hang on an actual GBA
 397         machine. Added NOP instruction after LDM^ instruction within an
 398         interrupt handler as written in ARM reference manual.
 399         * sys/arch/arm/arm/context.c: Likewise.
 400         * sys/arch/arm/include/arch.h: Likewise.
 401
 402 2006-05-19  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 403
 404         * dev/gen/ramdisk.c: Support RAM disk driver.
 405         * boot/include/bootinfo.h: Likewise.
 406         * boot/common/elf.c: Likewise.
 407         * boot/common/main.c: Likewise.
 408         * sys/mem/page.c (page_init): Likewise.
 409         * sys/include/bootinfo.h: Likewise.
 410         * dev/include/bootinfo.h: Likewise.
 411         * conf/config-arm-gba.h: Likewise.
 412         * conf/config-i386-pc.h: Likewise.
 413         * conf/config-i386-nommu.h: Likewise.
 414
 415 2006-05-7  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 416
 417         * sys/ipc/msg.c: Changed the data type of the message length
 418         of msg_send()/msg_receive()/msg_reply(). (int => size_t)
 419         * user/include/prex/prex.h: Likewise.
 420
 421 2006-04-30  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 422
 423         * sys/mem/vm_nommu.c (region_free): Fixed to remove a free node
 424         correctly.
 425         * user/include/prex/prex.h: Likewise.
 426
 427 2006-04-24  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 428
 429         * sys/kern/device.c: Changed the argument types of
 430         device_read()/device_write(). (size/offset => nbyte/blkno)
 431
 432 2006-04-21  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 433
 434         * sys/mem/vm.c: Fixed page fault during kernel memory dump.
 435         * sys/mem/vm_nommu.c: Likewise.
 436
 437 2006-02-23  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 438
 439         * sys/include/param.h: Update version to 0.4.1.
 440
 441         * sys/kern/irq.c (irq_detach): Fixed to terminate an interrupt
 442         thread in irq_detach() properly.
 443         * sys/kern/thread.c (__thread_terminate): Likewise.
 444         * sys/kern/task.c (task_terminate): Likewise.
 445
 446 2006-02-16  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 447
 448         * sys/lib/string.c (strlcpy): Changed all strncpy() routine
 449         to strlcpy() for security reason.
 450         * sys/include/kernel.h: Likewise.
 451         * sys/arch/i386/i386/gdb_stub.c: Likewise.
 452         * sys/kern/task.c (task_name): Likewise.
 453         * sys/ipc/object.c (object_create): Likewise.
 454         * sys/kern/device.c (device_create): Likewise.
 455         * sys/mem/vm.c (vm_dump_one): Likewise.
 456         * sys/mem/vm_nommu.c (vm_dump_one): Likewise.
 457
 458 2006-02-02  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 459
 460         * dev/arch/i386/i386/delay.c (delay_loop): Fixed the timer
 461         calibration code to prevent gcc's optimization. This caused
 462         system hang during boot.
 463
 464         * sys/kern/task.c (task_create): Dropped vm_inherit option
 465         of task_create on NOMMU system.
 466         * sys/mem/vm_nommu.c (vm_fork): Likewise.
 467
 468 2006-02-01  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 469
 470         * sys/arch/arm/arm/context.c (context_save): Aded an ARM exception
 471         support.
 472         * sys/arch/arm/arm/locore.S (interrupt_entry): Likewise.
 473
 474         * boot/common/elf.c: Added ELF object relocation. All boot tasks
 475         on NOMMU system are relocated at boot time. In addition, a driver
 476         module is also relocated on MMU/NOMMU system.
 477         * boot/arch/i386/i386/elf_reloc.c (relocate_rel): Likewise.
 478         * boot/arch/arm/arm/elf_reloc.c (relocate_rel): Likewise.
 479         * boot/include/elf.h: Likewise.
 480         * sys/kern/task.c (task_load): Likewise.
 481         * sys/mem/vm.c (__vm_allocate): Likewise.
 482         * sys/mem/vm_nommu.c (__vm_allocate): Likewise.
 483
 484 2006-01-31  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 485
 486         * sys/kern/except.c (exception_raise): Fixed the argument check
 487         of exception_raise() to be used with the alarm timer.
 488
 489 2006-01-19  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 490
 491         * sys/kern/sched.c (sched_wakeone): Fixed the priority check in
 492         the scheduler. The highest priority thread was not selected to
 493         run due to some bug.
 494         * sys/kern/sched.c (sched_setprio): Likewise.
 495         * sys/ipc/msg.c (dequeue_topprio): Likewise.
 496
 497 2006-01-12  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 498
 499         * dev/arch/i386/pc/fdd.c (fdd_write): Fixed the unexpected data
 500         write to floppy drive. It was writing 512 sectors instead of 512
 501         bytes.
 502
 503 2006-01-11  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 504
 505         * sys/kern/timer.c (timer_periodic): Updated the periodic timer
 506         routine to more simple.
 507
 508 2006-01-10  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 509
 510         * dev/arch/i386/pc/fdd.c (fdd_rw): Fixed the hang while continuous
 511         data write to FDD. The deadlock occurred because of the bad sequence
 512         of I/O request and scheduling lock.
 513
 514 2006-01-05  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 515
 516         * sys/sync/mutex.c (mutex_cleanup): Added Giang Hu's fix for mutex.
 517         The kernel hang occurred in some conditions.
 518
 519 2005-12-27  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 520
 521         * sys/include/param.h: Update version to 0.4.0.
 522
 523         * sys/*: Added 'task capability' to improve security. The task
 524         capability can be used to manage the permissions of the various
 525         task operations.
 526
 527 2005-12-16  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 528
 529         * sys/mem/vm.c (vm_create): Fixed a memory leak when vm_create()
 530         was failed.
 531
 532         * sys/arch/i386/i386/context.c (context_set): Changed the data type
 533         of register value to u_long from void *.
 534
 535 2005-12-13  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 536
 537         * sys/kern/task.c (task_create): Added vm_inherit argument to
 538         task_create() interface instead of using NULL as task id. It is
 539         changed to return ESRCH if specified task id is NULL.
 540
 541 2005-12-13  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 542
 543         * dev/arch/i386/pc/fdd.c (fdd_read): Fixed the i/o read size.
 544         It was using byte count for sector count.
 545
 546 2005-12-12  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 547
 548         * sys/ipc/msg.c (msg_send): Changed to fill the task ID in all
 549         messages for security.
 550
 551 2005-12-09  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 552
 553         * /conf/Makefile: Moved from /img directory. /img is removed now.
 554
 555         * user/sample/*: Added some sample programs.
 556
 557         * user/test/*: Updated whole test programs.
 558
 559         * user/include/prex/prex.h: Added definitions for exceptions.
 560
 561         * user/lib/prex/syscalls/Makefile (OBJS): Fixed the lack of
 562         sem_trywait() stub routine in the library.
 563
 564         * sys/kern/device.c (device_write): Changed the error code for
 565         EBADF as an invalid device object.
 566
 567         * dev/arch/i386/pc/console.c (console_write): Added locking scheduler
 568         while writing line to console.
 569
 570 2005-12-06 Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 571
 572         * make/*.mk: Updated makefiles.
 573
 574         * user/test/malloc: Added malloc() test program.
 575
 576         * user/test/errno: Added strerror() test program.
 577
 578 2005-12-02 Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 579
 580         * user/lib/libsa/*.c: Created new libc for standalone tasks.
 581
 582         * user/lib/libc/string/*.c: Updated string library with BSD code.
 583
 584 2005-12-01 Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 585
 586         * conf/config.h: Merged all configuration files.
 587
 588 2005-11-29  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 589
 590         * make/Makefile.inc: Support 'make lint'.
 591
 592 2005-11-25  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 593
 594         * dev/gen/null.c: Added null driver.
 595
 596         * dev/ge/zero.c: Added zero driver.
 597
 598 2005-11-24  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 599
 600         * sys/sync/mutex.c : Support a static mutex initializer.
 601
 602         * sys/sync/cond.c : Support a static CV initializer.
 603
 604         * sys/sync/mutex.c : Changed the argument type of the kernel synch
 605         API for POSIX compatibility.
 606         * sys/sync/cond.c : Likewise.
 607         * sys/sync/sem.c : Likewise.
 608
 609 2005-11-18  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 610
 611         * dev/include/errno.h : Changed the value of EAGAIN.
 612         * sys/include/errno.h : Likewise.
 613         * user/include/sys/errno.h : Likewise.
 614
 615 2005-11-15  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 616
 617         * sys/ipc/object.c (object_lookup): Fixed object_lookup(). It could
 618         not find the correct object.
 619
 620 2005-11-10  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 621
 622         * sys/include/param.h: Update version to 0.3.0.
 623
 624         * sys/mem/vm.c (vm_allocate_unlocked): The allocated memory was
 625         not initialized with 0 in vm_allocate().
 626         * sys/mem/vm_nommu.c (vm_allocate_unlocked): Likewise.
 627
 628 2005-11-09  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 629
 630         * boot/include/bootinfo.h: Fixed the compile error with gcc4.
 631
 632         * sys/sync/mutex.c (mutex_lock): Fix mutex_lock() to return EDEADLK
 633         rather than panic() when it detects the deadlock condition.
 634
 635 2005-11-08  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 636
 637         * user/test/mutex/main.c: Added the test program for the mutex.
 638         * user/test/deadlock/main.c: Added the test program for the deadlock
 639         condition of mutex.
 640
 641 2005-11-04  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 642
 643         * sys/sync/sem.c (sem_post): Fixed the bug in sem_post(). The waiting
 644         thread is not unblocked even if the semaphore value becomes positive.
 645
 646         * user/test/sem/main.c: Added the test program for the semaphore.
 647
 648 2005-11-02  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 649
 650         * user/lib/prex/sa/stdio.c: Added standalone I/O interface in the
 651         user mode library.
 652         * user/bin/cpuvolt/io.c: Likewise. (removed)
 653         * user/bin/kmon/io.c: Likewise. (removed)
 654         * user/test/bench/io.c: Likewise. (removed)
 655
 656         * sys/include/stat.h: Added data for timer tick rate in the
 657         kernel statistics data.
 658         * user/include/prex.h: Likewise.
 659         * user/test/bench/main.c: Likewise.
 660
 661         * sys/kern/device.c (device_init): Fixed to boot a kernel even if
 662         the driver module is not loaded.
 663
 664 2005-11-01  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 665
 666         * make/*.mk: Clean up all Makefiles.
 667
 668         * dev/include/ioctl.h: Changed the driver ioctl code to BSD style.
 669         * dev/include/cpu.h: Likewise.
 670         * dev/include/pm.h: Likewise.
 671         * user/include/prex/ioctl.h: Likewise.
 672         * user/bin/cpuvolt/main.c: Likewise.
 673         * user/bin/kmon/cmd.c: Likewise.
 674
 675 2005-10-28  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 676
 677         * sys/sync/sem.c (sem_init): Changed to allow re-initialize of
 678         the initialized semaphore. Fixed the error code of sem_init() to
 679         ENOSPC from ENOMEM for POSIX compatibility.
 680
 681         * sys/kern/syscall.c: Changed the name of the following system calls
 682         for POSIX compatibility.
 683          - mutex_create() -> mutex_init()
 684          - cond_create() -> cond_init()
 685          - sem_create() -> sem_init()
 686          - sem_count() -> sem_getvalue()
 687         * sys/sync/mutex.c: Likewise.
 688         * sys/sync/cond.c: Likewise.
 689         * sys/sync/sem.c: Likewise.
 690         * sys/include/sync.h: Likewise.
 691         * user/lib/prex/syscalls/syscall.h: Likewise.
 692         * user/lib/prex/syscalls/Makefile: Likewise.
 693         * user/include/prex/prex.h: Likewise.
 694
 695 2005-10-26  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 696
 697         * user/test/thread/main.c (main): Modified for the long run test.
 698
 699         * sys/arch/arm/arm/umem.c (umem_strnlen): Changed the return type
 700         of umem_strnlen() to identify the page fault and NULL string.
 701         * sys/arch/arm/include/arch.h: Likewise.
 702         * sys/arch/i386/i386/locore.S (umem_strnlen): Likewise.
 703         * sys/arch/i386/include/arch.h: Likewise.
 704
 705         * sys/arch/arm/arm/umem.c (umem_strnlen): Fixed the incorrect
 706         handling of the string length returned by umem_strnlen().
 707         * sys/kern/device.c (device_open): Likewise.
 708         * sys/kern/task.c (task_name): Likewise.
 709         * sys/kern/system.c (sys_log): Likewise.
 710
 711 2005-10-19  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 712
 713         * sys/arch/arm/arm/context.c: Clean up kernel configuration files.
 714         * sys/arch/arm/arm/trap.c: Likewise.
 715         * sys/arch/arm/arm/locore.S: Likewise.
 716         * sys/arch/arm/arm/locore.h: Likewise. (removed)
 717         * sys/arch/arm/include/config.h: Likewise.(new)
 718         * sys/arch/arm/include/param.h: Likewise.(removed)
 719         * sys/arch/arm/gba/config.h: Likewise. (new)
 720         * sys/arch/arm/gba/param.h: Likewise. (removed)
 721         * sys/arch/i386/i386/context.c: Likewise.
 722         * sys/arch/i386/i386/cpu.c: Likewise.
 723         * sys/arch/i386/i386/trap.c: Likewise.
 724         * sys/arch/i386/i386/cpu.h: Likewise.
 725         * sys/arch/i386/i386/locore.S: Likewise.
 726         * sys/arch/i386/i386/locore.h: Likewise. (removed)
 727         * sys/arch/i386/include/param.h: Likewise. (removed)
 728         * sys/arch/i386/include/config.h: Likewise. (new)
 729         * sys/arch/i386/nommu/config.h: Likewise. (new)
 730         * sys/arch/i386/pc/config.h: Likewise. (new)
 731         * sys/arch/i386/pc/intr.c: Likewise.
 732         * sys/include/kernel.h: Likewise.
 733         * sys/include/param.h: Likewise.
 734         * sys/include/sched.h: Likewise.
 735         * sys/include/device.h: Likewise.
 736         * sys/include/ipc.h: Likewise.
 737         * sys/include/page.h: Likewise.
 738         * sys/include/task.h: Likewise.
 739
 740 2005-10-13  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 741
 742         * bsp/boot/*: Restruct the whole directory structure.
 743         * bsp/dev/*: Likewise.
 744
 745 2005-10-07  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 746
 747         * sys/include/version.h: Update version to 0.2.2
 748
 749 2005-10-03  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 750
 751         * bsp/dev/power/pm.c (pm_ioctl): Removed sys_reboot() system call.
 752         The reboot request is processed by power management driver, instead.
 753         * bsp/include/pm.h: Likewise.
 754         * sys/kern/system.c: Likewise.
 755         * sys/kern/syscall.c: Likewise.
 756         * sys/include/device.h: Likewise.
 757         * user/lib/prex/syscalls/syscall.h: Likewise.
 758         * user/lib/prex/syscalls/Makefile: Likewise.
 759         * user/lib/prex/syscalls/sys_rebt.S: Likewise. (removed)
 760         * user/include/prex/prex.h: Likewise.
 761         * user/bin/kmon/cmd.c: Likewise.
 762         * user/include/prex/pm.h: Likewise. (new)
 763
 764 2005-09-30  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 765
 766         * sys/kern/sched.c (sched_schedule): Changed the function name
 767         sched_schedule() to sched_switch().
 768
 769         * sys/kern/sched.c: Fixed the bug in IST dispatcher. There was
 770         a small time-window that lost the IST trigger from ISR.
 771         * sys/arch/arm/arm/locore.h: Likewise.
 772         * sys/arch/arm/arm/locore.S: Likewise.
 773         * sys/arch/i386/i386/locore.h: Likewise.
 774         * sys/arch/i386/i386/locore.S: Likewise.
 775         * sys/kern/timer.c: Likewise.
 776         * sys/kern/irq.c: Likewise.
 777
 778 2005-09-15  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 779
 780         * bsp/arch/i386/boot/head.s (get_memsize): Added the routine to
 781         detect above 64M of RAM.
 782
 783 2005-09-08  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 784
 785         * sys/kern/system.c (sys_panic): Changed not to restart the system
 786         by the user mode panic when the kernel is non-debugging version.
 787
 788 2005-09-06  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 789
 790         * bsp/include/driver.h: Removed timer_udelay() definition which
 791         was an obsolete routine.
 792
 793 2005-09-01  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 794
 795         * make/sys.mk:
 796         Support a kernel function tracer. It can dump the run-time
 797         call tree for all function's entry and exit.
 798         * sys/kern/debug.c: Likewise.
 799         * make/common.mk: Likewise.
 800
 801 2005-08-26  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 802
 803         * sys/arch/i386/i386/cpu.h:
 804         Replaced all "extern inline" to "static inline" to use the gcc
 805         "-finstrument-functions" option.
 806         * sys/arch/arm/include/arch.h: Likewise.
 807         * sys/arch/i386/include/arch.h: Likewise.
 808
 809 2005-08-23  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 810
 811         * user/test/bench: Added a benchmark tool to create/terminate
 812         100000 threads at once.
 813
 814 2005-08-22  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 815
 816         * bsp/arch/i386/boot/head.S (boot_entry): Fixed the kernel
 817         page fault in accessing the last physical page. i386-BSP was
 818         modified to adjust the total memory size to 4K bytes boundary.
 819
 820 2005-08-19  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 821
 822         * sys/kern/sched.c: Clean up comment.
 823         * sys/kern/sched.c (sched_unlock): Removed needless irq_lock().
 824         * sys/kern/irq.c (irq_thread): Rewrite the IST dispatch code.
 825
 826 2005-06-27  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 827
 828         * sys/include/version.h: Update version to 0.2.1
 829
 830 2005-06-15  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 831
 832         * sys/kern/thread.c (kernel_thread): Fixed the irq lock count is
 833         not 0 after switching to new thread.
 834
 835         * sys/kern/device.c (device_open): Fixed the bug in the device name
 836         length. The string size did not include the terminater.
 837
 838 2005-06-10  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 839
 840         * sys/kern/timer.c (timer_timeout): Fixed timer_timeout() not to
 841         set the timeout value to zero when the requested value is smaller
 842         than 1 tick.
 843
 844 2005-06-09  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 845
 846         * sys/kern/thread.c (thread_schedparam): Removed the error check
 847         of maximum scheduling quantum, which is not useless. So, thread can
 848         specify any scheduling quantum now.
 849
 850         * sys/arch/i386/i386/context.c: Changed to allow I/O privilege
 851         for user mode applications.
 852
 853 2005-06-08  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 854
 855         * arm/*: Support ARM processor on Game Boy Advance.
 856
 857 2005-06-04  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 858         * bsp/dev/i386/pc/fdd.c: Added fdc existing check.
 859
 860 2005-06-04  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 861
 862         * sys/include/version.h: Update version to 0.2.0
 863
 864 2005-05-21  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 865
 866         * sys/sync/cond.c (cond_destroy): Fixed to prevent panic() even if
 867         active cv was destroyed. It will return EBUSY in that case.
 868
 869         * sys/sync/sem.c (sem_post): Fixed the bug about the unconditional
 870         wakeup of the blocked threads.
 871
 872 2005-05-15  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 873
 874         * sys/include/version.h: Added version file.
 875
 876 2005-05-14  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 877
 878         * Integrated the directory structure for cross platform support.
 879         * Almost makefiles were updated.
 880
 881 2005-05-01  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 882
 883         * sys/mem/vm_nommu.c: Support "No MMU" configuration.
 884
 885 2005-04-26  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 886
 887         * sys/arch/i386/arch/locore.S (cs_reset): Added a breakpoint
 888         for GDB in the kernel initialization.
 889
 890         * sys/kern/device.c (device_open):
 891         * bsp/dev/i386/pc/console.c:
 892         * bsp/dev/i386/pc/rtc.c:
 893         * bsp/dev/i386/pc/cpu.c:
 894         Changed to allow the device drivers to have I/O table without
 895         open/close routines.
 896
 897         * sys/arch/i386/arch/gdb_stub.c: Fixed the compile error when
 898         CONFIG_GDB is enabled.
 899
 900 2005-04-25  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 901
 902         * sys/arch/i386/arch/trap.c (trap_dump): Changed to display the
 903         task name for the system fault.
 904
 905 2005-04-17  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 906
 907         * sys/include/prex/config.h: Update version to 0.1.2
 908         * sys/kern/debug.c:
 909         * sys/kern/device.c:
 910         * bsp/dev/i386/pc/console.c:
 911         * bsp/dev/include/driver.h:
 912         Added debug_attach() interface for drivers. This interface
 913         enables the external print handler within bsp.
 914
 915 2005-04-16  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 916
 917         * bsp/dev/lib/string.c (strncpy):
 918         Fixed bug in strncpy().
 919
 920 2005-04-10  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 921
 922         * bsp/dev/i386/pc/console.c: Added additional escape codes for
 923         console driver. The cursor can move to the specific position now.
 924
 925         * user/bin/cpuvolt/main.c: Added CPU voltage monitoring tool.
 926
 927         * user/test/dvs/main.c: Added DVS test tool.
 928
 929 2005-04-06  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 930
 931         * bsp/dev/pc/cpu.c (cpu_init):
 932         * bsp/dev/common/pm.c (pm_init):
 933         Port Pentium-M frequency control routine from OpenBSD.
 934
 935 2005-04-05  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 936
 937         * sys/include/prex/config.h: Update version to 0.1.1
 938
 939         * bsp/dev/pc/rtc.c (rtc_read): Added getting time routine.
 940
 941         * sys/kern/device.c:
 942         * sys/mem/vm.c (vm_access):
 943         Added checking memory access for user memory.
 944
 945 2005-04-04  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 946
 947         * sys/kern/system.c (sys_time): Added sys_time() interface.
 948
 949 2005-03-29  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 950
 951         * make/*.mk: Changed common makefiles.
 952
 953         * user/bin/kmon/*.*: Support kernel monitor.
 954
 955         * sys/mem/kmem.c (page_stat):
 956         * sys/mem/kmem.c (kmem_stat):
 957         Implement sys_stat() system call.
 958
 959         * sys/arch/i386/i386/locore.S (umem_strnlen): Fixed sys_log() can
 960         not display message from the buffer in user stack area.
 961
 962 2005-03-25  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 963
 964         * user/lib/prex/crt/libcmain.c (__libc_main): Fixed start up code
 965         in C library.
 966
 967         * bsp/loader/include/bootinfo.h: Changed max name length of boot tasks.
 968
 969 2005-03-24  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 970
 971         * user/test/fault/main.c: Added test program for NULL pointer access.
 972
 973         * user/test/except/main.c: Added test program to send exception.
 974
 975         * user/test/timer/main.c: Added test program for timer.
 976
 977         * user/test/thread/main.c: Added test program for thread.
 978
 979 2005-03-22  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 980
 981         * sys/kern/except.c: Uninstall of the exception handler was
 982         not working.
 983
 984         * sys/arch/i386/context.c: Fixed the page fault with
 985         exception_raise(). The stack layout of exception frame was incorrect.
 986
 987         * user/lib/prex/crt/libcmain.c: Fixed library code to avoid the
 988         page fault when the main() routine returns.
 989
 990         * sys/kern/timer.c: Fix the timer overrun problem after 49 days.
 991
 992 2005-03-16  Kohsuke Ohtani  <kohtani@users.sourceforge.net>
 993
 994         * config.h: Ver 0.1 - Initial kernel release.