target/linux/generic-2.6/patches/600-x86_lzma.patch

   1 diff -Nur linux-2.6.21.1/arch/i386/boot/compressed/LzmaDecode.c linux-2.6.21.1-owrt/arch/i386/boot/compressed/LzmaDecode.c
   2 --- linux-2.6.21.1/arch/i386/boot/compressed/LzmaDecode.c       1970-01-01 01:00:00.000000000 +0100
   3 +++ linux-2.6.21.1-owrt/arch/i386/boot/compressed/LzmaDecode.c  2007-05-14 11:55:38.000000000 +0200
   4 @@ -0,0 +1,586 @@
   5 +/*
   6 +  LzmaDecode.c
   7 +  LZMA Decoder (optimized for Speed version)
   8 +
   9 +  LZMA SDK 4.17 Copyright (c) 1999-2005 Igor Pavlov (2005-04-05)
  10 +  http://www.7-zip.org/
  11 +
  12 +  LZMA SDK is licensed under two licenses:
  13 +  1) GNU Lesser General Public License (GNU LGPL)
  14 +  2) Common Public License (CPL)
  15 +  It means that you can select one of these two licenses and
  16 +  follow rules of that license.
  17 +
  18 +  SPECIAL EXCEPTION:
  19 +  Igor Pavlov, as the author of this Code, expressly permits you to
  20 +  statically or dynamically link your Code (or bind by name) to the
  21 +  interfaces of this file without subjecting your linked Code to the
  22 +  terms of the CPL or GNU LGPL. Any modifications or additions
  23 +  to this file, however, are subject to the LGPL or CPL terms.
  24 +*/
  25 +
  26 +#include "LzmaDecode.h"
  27 +
  28 +#ifndef Byte
  29 +#define Byte unsigned char
  30 +#endif
  31 +
  32 +#define kNumTopBits 24
  33 +#define kTopValue ((UInt32)1 << kNumTopBits)
  34 +
  35 +#define kNumBitModelTotalBits 11
  36 +#define kBitModelTotal (1 << kNumBitModelTotalBits)
  37 +#define kNumMoveBits 5
  38 +
  39 +#define RC_READ_BYTE (*Buffer++)
  40 +
  41 +#define RC_INIT2 Code = 0; Range = 0xFFFFFFFF; \
  42 +  { int i; for(i = 0; i < 5; i++) { RC_TEST; Code = (Code << 8) | RC_READ_BYTE; }}
  43 +
  44 +#ifdef _LZMA_IN_CB
  45 +
  46 +#define RC_TEST { if (Buffer == BufferLim) \
  47 +  { UInt32 size; int result = InCallback->Read(InCallback, &Buffer, &size); if (result != LZMA_RESULT_OK) return result; \
  48 +  BufferLim = Buffer + size; if (size == 0) return LZMA_RESULT_DATA_ERROR; }}
  49 +
  50 +#define RC_INIT Buffer = BufferLim = 0; RC_INIT2
  51 +
  52 +#else
  53 +
  54 +#define RC_TEST { if (Buffer == BufferLim) return LZMA_RESULT_DATA_ERROR; }
  55 +
  56 +#define RC_INIT(buffer, bufferSize) Buffer = buffer; BufferLim = buffer + bufferSize; RC_INIT2
  57 +
  58 +#endif
  59 +
  60 +#define RC_NORMALIZE if (Range < kTopValue) { RC_TEST; Range <<= 8; Code = (Code << 8) | RC_READ_BYTE; }
  61 +
  62 +#define IfBit0(p) RC_NORMALIZE; bound = (Range >> kNumBitModelTotalBits) * *(p); if (Code < bound)
  63 +#define UpdateBit0(p) Range = bound; *(p) += (kBitModelTotal - *(p)) >> kNumMoveBits;
  64 +#define UpdateBit1(p) Range -= bound; Code -= bound; *(p) -= (*(p)) >> kNumMoveBits;
  65 +
  66 +#define RC_GET_BIT2(p, mi, A0, A1) IfBit0(p) \
  67 +  { UpdateBit0(p); mi <<= 1; A0; } else \
  68 +  { UpdateBit1(p); mi = (mi + mi) + 1; A1; }
  69 +
  70 +#define RC_GET_BIT(p, mi) RC_GET_BIT2(p, mi, ; , ;)
  71 +
  72 +#define RangeDecoderBitTreeDecode(probs, numLevels, res) \
  73 +  { int i = numLevels; res = 1; \
  74 +  do { CProb *p = probs + res; RC_GET_BIT(p, res) } while(--i != 0); \
  75 +  res -= (1 << numLevels); }
  76 +
  77 +
  78 +#define kNumPosBitsMax 4
  79 +#define kNumPosStatesMax (1 << kNumPosBitsMax)
  80 +
  81 +#define kLenNumLowBits 3
  82 +#define kLenNumLowSymbols (1 << kLenNumLowBits)
  83 +#define kLenNumMidBits 3
  84 +#define kLenNumMidSymbols (1 << kLenNumMidBits)
  85 +#define kLenNumHighBits 8
  86 +#define kLenNumHighSymbols (1 << kLenNumHighBits)
  87 +
  88 +#define LenChoice 0
  89 +#define LenChoice2 (LenChoice + 1)
  90 +#define LenLow (LenChoice2 + 1)
  91 +#define LenMid (LenLow + (kNumPosStatesMax << kLenNumLowBits))
  92 +#define LenHigh (LenMid + (kNumPosStatesMax << kLenNumMidBits))
  93 +#define kNumLenProbs (LenHigh + kLenNumHighSymbols)
  94 +
  95 +
  96 +#define kNumStates 12
  97 +#define kNumLitStates 7
  98 +
  99 +#define kStartPosModelIndex 4
 100 +#define kEndPosModelIndex 14
 101 +#define kNumFullDistances (1 << (kEndPosModelIndex >> 1))
 102 +
 103 +#define kNumPosSlotBits 6
 104 +#define kNumLenToPosStates 4
 105 +
 106 +#define kNumAlignBits 4
 107 +#define kAlignTableSize (1 << kNumAlignBits)
 108 +
 109 +#define kMatchMinLen 2
 110 +
 111 +#define IsMatch 0
 112 +#define IsRep (IsMatch + (kNumStates << kNumPosBitsMax))
 113 +#define IsRepG0 (IsRep + kNumStates)
 114 +#define IsRepG1 (IsRepG0 + kNumStates)
 115 +#define IsRepG2 (IsRepG1 + kNumStates)
 116 +#define IsRep0Long (IsRepG2 + kNumStates)
 117 +#define PosSlot (IsRep0Long + (kNumStates << kNumPosBitsMax))
 118 +#define SpecPos (PosSlot + (kNumLenToPosStates << kNumPosSlotBits))
 119 +#define Align (SpecPos + kNumFullDistances - kEndPosModelIndex)
 120 +#define LenCoder (Align + kAlignTableSize)
 121 +#define RepLenCoder (LenCoder + kNumLenProbs)
 122 +#define Literal (RepLenCoder + kNumLenProbs)
 123 +
 124 +#if Literal != LZMA_BASE_SIZE
 125 +StopCompilingDueBUG
 126 +#endif
 127 +
 128 +#ifdef _LZMA_OUT_READ
 129 +
 130 +typedef struct _LzmaVarState
 131 +{
 132 +  Byte *Buffer;
 133 +  Byte *BufferLim;
 134 +  UInt32 Range;
 135 +  UInt32 Code;
 136 +  #ifdef _LZMA_IN_CB
 137 +  ILzmaInCallback *InCallback;
 138 +  #endif
 139 +  Byte *Dictionary;
 140 +  UInt32 DictionarySize;
 141 +  UInt32 DictionaryPos;
 142 +  UInt32 GlobalPos;
 143 +  UInt32 Reps[4];
 144 +  int lc;
 145 +  int lp;
 146 +  int pb;
 147 +  int State;
 148 +  int RemainLen;
 149 +  Byte TempDictionary[4];
 150 +} LzmaVarState;
 151 +
 152 +int LzmaDecoderInit(
 153 +    unsigned char *buffer, UInt32 bufferSize,
 154 +    int lc, int lp, int pb,
 155 +    unsigned char *dictionary, UInt32 dictionarySize,
 156 +    #ifdef _LZMA_IN_CB
 157 +    ILzmaInCallback *InCallback
 158 +    #else
 159 +    unsigned char *inStream, UInt32 inSize
 160 +    #endif
 161 +    )
 162 +{
 163 +  Byte *Buffer;
 164 +  Byte *BufferLim;
 165 +  UInt32 Range;
 166 +  UInt32 Code;
 167 +  LzmaVarState *vs = (LzmaVarState *)buffer;
 168 +  CProb *p = (CProb *)(buffer + sizeof(LzmaVarState));
 169 +  UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (lc + lp));
 170 +  UInt32 i;
 171 +  if (bufferSize < numProbs * sizeof(CProb) + sizeof(LzmaVarState))
 172 +    return LZMA_RESULT_NOT_ENOUGH_MEM;
 173 +  vs->Dictionary = dictionary;
 174 +  vs->DictionarySize = dictionarySize;
 175 +  vs->DictionaryPos = 0;
 176 +  vs->GlobalPos = 0;
 177 +  vs->Reps[0] = vs->Reps[1] = vs->Reps[2] = vs->Reps[3] = 1;
 178 +  vs->lc = lc;
 179 +  vs->lp = lp;
 180 +  vs->pb = pb;
 181 +  vs->State = 0;
 182 +  vs->RemainLen = 0;
 183 +  dictionary[dictionarySize - 1] = 0;
 184 +  for (i = 0; i < numProbs; i++)
 185 +    p[i] = kBitModelTotal >> 1;
 186 +
 187 +  #ifdef _LZMA_IN_CB
 188 +  RC_INIT;
 189 +  #else
 190 +  RC_INIT(inStream, inSize);
 191 +  #endif
 192 +  vs->Buffer = Buffer;
 193 +  vs->BufferLim = BufferLim;
 194 +  vs->Range = Range;
 195 +  vs->Code = Code;
 196 +  #ifdef _LZMA_IN_CB
 197 +  vs->InCallback = InCallback;
 198 +  #endif
 199 +
 200 +  return LZMA_RESULT_OK;
 201 +}
 202 +
 203 +int LzmaDecode(unsigned char *buffer,
 204 +    unsigned char *outStream, UInt32 outSize,
 205 +    UInt32 *outSizeProcessed)
 206 +{
 207 +  LzmaVarState *vs = (LzmaVarState *)buffer;
 208 +  Byte *Buffer = vs->Buffer;
 209 +  Byte *BufferLim = vs->BufferLim;
 210 +  UInt32 Range = vs->Range;
 211 +  UInt32 Code = vs->Code;
 212 +  #ifdef _LZMA_IN_CB
 213 +  ILzmaInCallback *InCallback = vs->InCallback;
 214 +  #endif
 215 +  CProb *p = (CProb *)(buffer + sizeof(LzmaVarState));
 216 +  int state = vs->State;
 217 +  Byte previousByte;
 218 +  UInt32 rep0 = vs->Reps[0], rep1 = vs->Reps[1], rep2 = vs->Reps[2], rep3 = vs->Reps[3];
 219 +  UInt32 nowPos = 0;
 220 +  UInt32 posStateMask = (1 << (vs->pb)) - 1;
 221 +  UInt32 literalPosMask = (1 << (vs->lp)) - 1;
 222 +  int lc = vs->lc;
 223 +  int len = vs->RemainLen;
 224 +  UInt32 globalPos = vs->GlobalPos;
 225 +
 226 +  Byte *dictionary = vs->Dictionary;
 227 +  UInt32 dictionarySize = vs->DictionarySize;
 228 +  UInt32 dictionaryPos = vs->DictionaryPos;
 229 +
 230 +  Byte tempDictionary[4];
 231 +  if (dictionarySize == 0)
 232 +  {
 233 +    dictionary = tempDictionary;
 234 +    dictionarySize = 1;
 235 +    tempDictionary[0] = vs->TempDictionary[0];
 236 +  }
 237 +
 238 +  if (len == -1)
 239 +  {
 240 +    *outSizeProcessed = 0;
 241 +    return LZMA_RESULT_OK;
 242 +  }
 243 +
 244 +  while(len != 0 && nowPos < outSize)
 245 +  {
 246 +    UInt32 pos = dictionaryPos - rep0;
 247 +    if (pos >= dictionarySize)
 248 +      pos += dictionarySize;
 249 +    outStream[nowPos++] = dictionary[dictionaryPos] = dictionary[pos];
 250 +    if (++dictionaryPos == dictionarySize)
 251 +      dictionaryPos = 0;
 252 +    len--;
 253 +  }
 254 +  if (dictionaryPos == 0)
 255 +    previousByte = dictionary[dictionarySize - 1];
 256 +  else
 257 +    previousByte = dictionary[dictionaryPos - 1];
 258 +#else
 259 +
 260 +int LzmaDecode(
 261 +    Byte *buffer, UInt32 bufferSize,
 262 +    int lc, int lp, int pb,
 263 +    #ifdef _LZMA_IN_CB
 264 +    ILzmaInCallback *InCallback,
 265 +    #else
 266 +    unsigned char *inStream, UInt32 inSize,
 267 +    #endif
 268 +    unsigned char *outStream, UInt32 outSize,
 269 +    UInt32 *outSizeProcessed)
 270 +{
 271 +  UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (lc + lp));
 272 +  CProb *p = (CProb *)buffer;
 273 +
 274 +  UInt32 i;
 275 +  int state = 0;
 276 +  Byte previousByte = 0;
 277 +  UInt32 rep0 = 1, rep1 = 1, rep2 = 1, rep3 = 1;
 278 +  UInt32 nowPos = 0;
 279 +  UInt32 posStateMask = (1 << pb) - 1;
 280 +  UInt32 literalPosMask = (1 << lp) - 1;
 281 +  int len = 0;
 282 +
 283 +  Byte *Buffer;
 284 +  Byte *BufferLim;
 285 +  UInt32 Range;
 286 +  UInt32 Code;
 287 +
 288 +  if (bufferSize < numProbs * sizeof(CProb))
 289 +    return LZMA_RESULT_NOT_ENOUGH_MEM;
 290 +  for (i = 0; i < numProbs; i++)
 291 +    p[i] = kBitModelTotal >> 1;
 292 +
 293 +
 294 +  #ifdef _LZMA_IN_CB
 295 +  RC_INIT;
 296 +  #else
 297 +  RC_INIT(inStream, inSize);
 298 +  #endif
 299 +#endif
 300 +
 301 +  *outSizeProcessed = 0;
 302 +  while(nowPos < outSize)
 303 +  {
 304 +    CProb *prob;
 305 +    UInt32 bound;
 306 +    int posState = (int)(
 307 +        (nowPos
 308 +        #ifdef _LZMA_OUT_READ
 309 +        + globalPos
 310 +        #endif
 311 +        )
 312 +        & posStateMask);
 313 +
 314 +    prob = p + IsMatch + (state << kNumPosBitsMax) + posState;
 315 +    IfBit0(prob)
 316 +    {
 317 +      int symbol = 1;
 318 +      UpdateBit0(prob)
 319 +      prob = p + Literal + (LZMA_LIT_SIZE *
 320 +        (((
 321 +        (nowPos
 322 +        #ifdef _LZMA_OUT_READ
 323 +        + globalPos
 324 +        #endif
 325 +        )
 326 +        & literalPosMask) << lc) + (previousByte >> (8 - lc))));
 327 +
 328 +      if (state >= kNumLitStates)
 329 +      {
 330 +        int matchByte;
 331 +        #ifdef _LZMA_OUT_READ
 332 +        UInt32 pos = dictionaryPos - rep0;
 333 +        if (pos >= dictionarySize)
 334 +          pos += dictionarySize;
 335 +        matchByte = dictionary[pos];
 336 +        #else
 337 +        matchByte = outStream[nowPos - rep0];
 338 +        #endif
 339 +        do
 340 +        {
 341 +          int bit;
 342 +          CProb *probLit;
 343 +          matchByte <<= 1;
 344 +          bit = (matchByte & 0x100);
 345 +          probLit = prob + 0x100 + bit + symbol;
 346 +          RC_GET_BIT2(probLit, symbol, if (bit != 0) break, if (bit == 0) break)
 347 +        }
 348 +        while (symbol < 0x100);
 349 +      }
 350 +      while (symbol < 0x100)
 351 +      {
 352 +        CProb *probLit = prob + symbol;
 353 +        RC_GET_BIT(probLit, symbol)
 354 +      }
 355 +      previousByte = (Byte)symbol;
 356 +
 357 +      outStream[nowPos++] = previousByte;
 358 +      #ifdef _LZMA_OUT_READ
 359 +      dictionary[dictionaryPos] = previousByte;
 360 +      if (++dictionaryPos == dictionarySize)
 361 +        dictionaryPos = 0;
 362 +      #endif
 363 +      if (state < 4) state = 0;
 364 +      else if (state < 10) state -= 3;
 365 +      else state -= 6;
 366 +    }
 367 +    else
 368 +    {
 369 +      UpdateBit1(prob);
 370 +      prob = p + IsRep + state;
 371 +      IfBit0(prob)
 372 +      {
 373 +        UpdateBit0(prob);
 374 +        rep3 = rep2;
 375 +        rep2 = rep1;
 376 +        rep1 = rep0;
 377 +        state = state < kNumLitStates ? 0 : 3;
 378 +        prob = p + LenCoder;
 379 +      }
 380 +      else
 381 +      {
 382 +        UpdateBit1(prob);
 383 +        prob = p + IsRepG0 + state;
 384 +        IfBit0(prob)
 385 +        {
 386 +          UpdateBit0(prob);
 387 +          prob = p + IsRep0Long + (state << kNumPosBitsMax) + posState;
 388 +          IfBit0(prob)
 389 +          {
 390 +            #ifdef _LZMA_OUT_READ
 391 +            UInt32 pos;
 392 +            #endif
 393 +            UpdateBit0(prob);
 394 +            if (nowPos
 395 +                #ifdef _LZMA_OUT_READ
 396 +                + globalPos
 397 +                #endif
 398 +                == 0)
 399 +              return LZMA_RESULT_DATA_ERROR;
 400 +            state = state < kNumLitStates ? 9 : 11;
 401 +            #ifdef _LZMA_OUT_READ
 402 +            pos = dictionaryPos - rep0;
 403 +            if (pos >= dictionarySize)
 404 +              pos += dictionarySize;
 405 +            previousByte = dictionary[pos];
 406 +            dictionary[dictionaryPos] = previousByte;
 407 +            if (++dictionaryPos == dictionarySize)
 408 +              dictionaryPos = 0;
 409 +            #else
 410 +            previousByte = outStream[nowPos - rep0];
 411 +            #endif
 412 +            outStream[nowPos++] = previousByte;
 413 +            continue;
 414 +          }
 415 +          else
 416 +          {
 417 +            UpdateBit1(prob);
 418 +          }
 419 +        }
 420 +        else
 421 +        {
 422 +          UInt32 distance;
 423 +          UpdateBit1(prob);
 424 +          prob = p + IsRepG1 + state;
 425 +          IfBit0(prob)
 426 +          {
 427 +            UpdateBit0(prob);
 428 +            distance = rep1;
 429 +          }
 430 +          else
 431 +          {
 432 +            UpdateBit1(prob);
 433 +            prob = p + IsRepG2 + state;
 434 +            IfBit0(prob)
 435 +            {
 436 +              UpdateBit0(prob);
 437 +              distance = rep2;
 438 +            }
 439 +            else
 440 +            {
 441 +              UpdateBit1(prob);
 442 +              distance = rep3;
 443 +              rep3 = rep2;
 444 +            }
 445 +            rep2 = rep1;
 446 +          }
 447 +          rep1 = rep0;
 448 +          rep0 = distance;
 449 +        }
 450 +        state = state < kNumLitStates ? 8 : 11;
 451 +        prob = p + RepLenCoder;
 452 +      }
 453 +      {
 454 +        int numBits, offset;
 455 +        CProb *probLen = prob + LenChoice;
 456 +        IfBit0(probLen)
 457 +        {
 458 +          UpdateBit0(probLen);
 459 +          probLen = prob + LenLow + (posState << kLenNumLowBits);
 460 +          offset = 0;
 461 +          numBits = kLenNumLowBits;
 462 +        }
 463 +        else
 464 +        {
 465 +          UpdateBit1(probLen);
 466 +          probLen = prob + LenChoice2;
 467 +          IfBit0(probLen)
 468 +          {
 469 +            UpdateBit0(probLen);
 470 +            probLen = prob + LenMid + (posState << kLenNumMidBits);
 471 +            offset = kLenNumLowSymbols;
 472 +            numBits = kLenNumMidBits;
 473 +          }
 474 +          else
 475 +          {
 476 +            UpdateBit1(probLen);
 477 +            probLen = prob + LenHigh;
 478 +            offset = kLenNumLowSymbols + kLenNumMidSymbols;
 479 +            numBits = kLenNumHighBits;
 480 +          }
 481 +        }
 482 +        RangeDecoderBitTreeDecode(probLen, numBits, len);
 483 +        len += offset;
 484 +      }
 485 +
 486 +      if (state < 4)
 487 +      {
 488 +        int posSlot;
 489 +        state += kNumLitStates;
 490 +        prob = p + PosSlot +
 491 +            ((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) <<
 492 +            kNumPosSlotBits);
 493 +        RangeDecoderBitTreeDecode(prob, kNumPosSlotBits, posSlot);
 494 +        if (posSlot >= kStartPosModelIndex)
 495 +        {
 496 +          int numDirectBits = ((posSlot >> 1) - 1);
 497 +          rep0 = (2 | ((UInt32)posSlot & 1));
 498 +          if (posSlot < kEndPosModelIndex)
 499 +          {
 500 +            rep0 <<= numDirectBits;
 501 +            prob = p + SpecPos + rep0 - posSlot - 1;
 502 +          }
 503 +          else
 504 +          {
 505 +            numDirectBits -= kNumAlignBits;
 506 +            do
 507 +            {
 508 +              RC_NORMALIZE
 509 +              Range >>= 1;
 510 +              rep0 <<= 1;
 511 +              if (Code >= Range)
 512 +              {
 513 +                Code -= Range;
 514 +                rep0 |= 1;
 515 +              }
 516 +            }
 517 +            while (--numDirectBits != 0);
 518 +            prob = p + Align;
 519 +            rep0 <<= kNumAlignBits;
 520 +            numDirectBits = kNumAlignBits;
 521 +          }
 522 +          {
 523 +            int i = 1;
 524 +            int mi = 1;
 525 +            do
 526 +            {
 527 +              CProb *prob3 = prob + mi;
 528 +              RC_GET_BIT2(prob3, mi, ; , rep0 |= i);
 529 +              i <<= 1;
 530 +            }
 531 +            while(--numDirectBits != 0);
 532 +          }
 533 +        }
 534 +        else
 535 +          rep0 = posSlot;
 536 +        if (++rep0 == (UInt32)(0))
 537 +        {
 538 +          /* it's for stream version */
 539 +          len = -1;
 540 +          break;
 541 +        }
 542 +      }
 543 +
 544 +      len += kMatchMinLen;
 545 +      if (rep0 > nowPos
 546 +        #ifdef _LZMA_OUT_READ
 547 +        + globalPos || rep0 > dictionarySize
 548 +        #endif
 549 +        )
 550 +        return LZMA_RESULT_DATA_ERROR;
 551 +      do
 552 +      {
 553 +        #ifdef _LZMA_OUT_READ
 554 +        UInt32 pos = dictionaryPos - rep0;
 555 +        if (pos >= dictionarySize)
 556 +          pos += dictionarySize;
 557 +        previousByte = dictionary[pos];
 558 +        dictionary[dictionaryPos] = previousByte;
 559 +        if (++dictionaryPos == dictionarySize)
 560 +          dictionaryPos = 0;
 561 +        #else
 562 +        previousByte = outStream[nowPos - rep0];
 563 +        #endif
 564 +        len--;
 565 +        outStream[nowPos++] = previousByte;
 566 +      }
 567 +      while(len != 0 && nowPos < outSize);
 568 +    }
 569 +  }
 570 +  RC_NORMALIZE;
 571 +
 572 +  #ifdef _LZMA_OUT_READ
 573 +  vs->Buffer = Buffer;
 574 +  vs->BufferLim = BufferLim;
 575 +  vs->Range = Range;
 576 +  vs->Code = Code;
 577 +  vs->DictionaryPos = dictionaryPos;
 578 +  vs->GlobalPos = globalPos + nowPos;
 579 +  vs->Reps[0] = rep0;
 580 +  vs->Reps[1] = rep1;
 581 +  vs->Reps[2] = rep2;
 582 +  vs->Reps[3] = rep3;
 583 +  vs->State = state;
 584 +  vs->RemainLen = len;
 585 +  vs->TempDictionary[0] = tempDictionary[0];
 586 +  #endif
 587 +
 588 +  *outSizeProcessed = nowPos;
 589 +  return LZMA_RESULT_OK;
 590 +}
 591 diff -Nur linux-2.6.21.1/arch/i386/boot/compressed/LzmaDecode.h linux-2.6.21.1-owrt/arch/i386/boot/compressed/LzmaDecode.h
 592 --- linux-2.6.21.1/arch/i386/boot/compressed/LzmaDecode.h       1970-01-01 01:00:00.000000000 +0100
 593 +++ linux-2.6.21.1-owrt/arch/i386/boot/compressed/LzmaDecode.h  2007-05-14 11:55:38.000000000 +0200
 594 @@ -0,0 +1,100 @@
 595 +/*
 596 +  LzmaDecode.h
 597 +  LZMA Decoder interface
 598 +
 599 +  LZMA SDK 4.16 Copyright (c) 1999-2005 Igor Pavlov (2005-03-18)
 600 +  http://www.7-zip.org/
 601 +
 602 +  LZMA SDK is licensed under two licenses:
 603 +  1) GNU Lesser General Public License (GNU LGPL)
 604 +  2) Common Public License (CPL)
 605 +  It means that you can select one of these two licenses and
 606 +  follow rules of that license.
 607 +
 608 +  SPECIAL EXCEPTION:
 609 +  Igor Pavlov, as the author of this code, expressly permits you to
 610 +  statically or dynamically link your code (or bind by name) to the
 611 +  interfaces of this file without subjecting your linked code to the
 612 +  terms of the CPL or GNU LGPL. Any modifications or additions
 613 +  to this file, however, are subject to the LGPL or CPL terms.
 614 +*/
 615 +
 616 +#ifndef __LZMADECODE_H
 617 +#define __LZMADECODE_H
 618 +
 619 +/* #define _LZMA_IN_CB */
 620 +/* Use callback for input data */
 621 +
 622 +/* #define _LZMA_OUT_READ */
 623 +/* Use read function for output data */
 624 +
 625 +/* #define _LZMA_PROB32 */
 626 +/* It can increase speed on some 32-bit CPUs,
 627 +   but memory usage will be doubled in that case */
 628 +
 629 +/* #define _LZMA_LOC_OPT */
 630 +/* Enable local speed optimizations inside code */
 631 +
 632 +#ifndef UInt32
 633 +#ifdef _LZMA_UINT32_IS_ULONG
 634 +#define UInt32 unsigned long
 635 +#else
 636 +#define UInt32 unsigned int
 637 +#endif
 638 +#endif
 639 +
 640 +#ifdef _LZMA_PROB32
 641 +#define CProb UInt32
 642 +#else
 643 +#define CProb unsigned short
 644 +#endif
 645 +
 646 +#define LZMA_RESULT_OK 0
 647 +#define LZMA_RESULT_DATA_ERROR 1
 648 +#define LZMA_RESULT_NOT_ENOUGH_MEM 2
 649 +
 650 +#ifdef _LZMA_IN_CB
 651 +typedef struct _ILzmaInCallback
 652 +{
 653 +  int (*Read)(void *object, unsigned char **buffer, UInt32 *bufferSize);
 654 +} ILzmaInCallback;
 655 +#endif
 656 +
 657 +#define LZMA_BASE_SIZE 1846
 658 +#define LZMA_LIT_SIZE 768
 659 +
 660 +/*
 661 +bufferSize = (LZMA_BASE_SIZE + (LZMA_LIT_SIZE << (lc + lp)))* sizeof(CProb)
 662 +bufferSize += 100 in case of _LZMA_OUT_READ
 663 +by default CProb is unsigned short,
 664 +but if specify _LZMA_PROB_32, CProb will be UInt32(unsigned int)
 665 +*/
 666 +
 667 +#ifdef _LZMA_OUT_READ
 668 +int LzmaDecoderInit(
 669 +    unsigned char *buffer, UInt32 bufferSize,
 670 +    int lc, int lp, int pb,
 671 +    unsigned char *dictionary, UInt32 dictionarySize,
 672 +  #ifdef _LZMA_IN_CB
 673 +    ILzmaInCallback *inCallback
 674 +  #else
 675 +    unsigned char *inStream, UInt32 inSize
 676 +  #endif
 677 +);
 678 +#endif
 679 +
 680 +int LzmaDecode(
 681 +    unsigned char *buffer,
 682 +  #ifndef _LZMA_OUT_READ
 683 +    UInt32 bufferSize,
 684 +    int lc, int lp, int pb,
 685 +  #ifdef _LZMA_IN_CB
 686 +    ILzmaInCallback *inCallback,
 687 +  #else
 688 +    unsigned char *inStream, UInt32 inSize,
 689 +  #endif
 690 +  #endif
 691 +    unsigned char *outStream, UInt32 outSize,
 692 +    UInt32 *outSizeProcessed);
 693 +
 694 +#endif
 695 diff -Nur linux-2.6.21.1/arch/i386/boot/compressed/lzma_misc.c linux-2.6.21.1-owrt/arch/i386/boot/compressed/lzma_misc.c
 696 --- linux-2.6.21.1/arch/i386/boot/compressed/lzma_misc.c        1970-01-01 01:00:00.000000000 +0100
 697 +++ linux-2.6.21.1-owrt/arch/i386/boot/compressed/lzma_misc.c   2007-05-14 11:55:38.000000000 +0200
 698 @@ -0,0 +1,412 @@
 699 +/*
 700 + * lzma_misc.c
 701 + *
 702 + * Decompress LZMA compressed vmlinuz
 703 + * Version 0.9 Copyright (c) Ming-Ching Tiew mctiew@yahoo.com
 704 + * Program adapted from misc.c for 2.6 kernel
 705 + * Date: 3 June 2005
 706 + * Source released under GPL
 707 + */
 708 +
 709 +#include <linux/linkage.h>
 710 +#include <linux/vmalloc.h>
 711 +#include <linux/tty.h>
 712 +#include <linux/screen_info.h>
 713 +#include <asm/io.h>
 714 +
 715 +#define OF(args)  args
 716 +#define STATIC static
 717 +
 718 +#undef memset
 719 +#undef memcpy
 720 +
 721 +/*
 722 + * Why do we do this? Don't ask me..
 723 + *
 724 + * Incomprehensible are the ways of bootloaders.
 725 + */
 726 +static void* memcpy(void *, __const void *, size_t);
 727 +
 728 +typedef unsigned char  uch;
 729 +typedef unsigned short ush;
 730 +typedef unsigned long  ulg;
 731 +
 732 +#define WSIZE 0x8000           /* Window size must be at least 32k, */
 733 +                               /* and a power of two */
 734 +
 735 +static uch *inbuf;          /* input buffer */
 736 +
 737 +static unsigned insize = 0;  /* valid bytes in inbuf */
 738 +static unsigned inptr = 0;   /* index of next byte to be processed in inbuf */
 739 +
 740 +#define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf())
 741 +
 742 +/* Diagnostic functions */
 743 +#ifdef DEBUG
 744 +#  define Assert(cond,msg) {if(!(cond)) error(msg);}
 745 +#  define Trace(x) fprintf x
 746 +#  define Tracev(x) {if (verbose) fprintf x ;}
 747 +#  define Tracevv(x) {if (verbose>1) fprintf x ;}
 748 +#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
 749 +#  define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
 750 +#else
 751 +#  define Assert(cond,msg)
 752 +#  define Trace(x)
 753 +#  define Tracev(x)
 754 +#  define Tracevv(x)
 755 +#  define Tracec(c,x)
 756 +#  define Tracecv(c,x)
 757 +#endif
 758 +
 759 +static int  fill_inbuf(void);
 760 +static void error(char *m);
 761 +
 762 +/*
 763 + * This is set up by the setup-routine at boot-time
 764 + */
 765 +static unsigned char *real_mode; /* Pointer to real-mode data */
 766 +
 767 +#define RM_EXT_MEM_K   (*(unsigned short *)(real_mode + 0x2))
 768 +#ifndef STANDARD_MEMORY_BIOS_CALL
 769 +#define RM_ALT_MEM_K   (*(unsigned long *)(real_mode + 0x1e0))
 770 +#endif
 771 +#define RM_SCREEN_INFO (*(struct screen_info *)(real_mode+0))
 772 +
 773 +extern char input_data[];
 774 +extern int input_len;
 775 +
 776 +static long bytes_out = 0;
 777 +static uch *output_data;
 778 +
 779 +static void putstr(const char *);
 780 +
 781 +extern int _end;
 782 +static long free_mem_ptr = (long)&_end;
 783 +static long free_mem_end_ptr;
 784 +
 785 +#define INPLACE_MOVE_ROUTINE  0x1000
 786 +#define LOW_BUFFER_START      0x2000
 787 +#define LOW_BUFFER_MAX       0x90000
 788 +#define HEAP_SIZE             0x3000
 789 +static unsigned int low_buffer_end, low_buffer_size;
 790 +static int high_loaded =0;
 791 +static uch *high_buffer_start /* = (uch *)(((ulg)&_end) + HEAP_SIZE)*/;
 792 +
 793 +static char *vidmem = (char *)0xb8000;
 794 +static int vidport;
 795 +static int lines, cols;
 796 +
 797 +static void scroll(void)
 798 +{
 799 +       int i;
 800 +
 801 +       memcpy ( vidmem, vidmem + cols * 2, ( lines - 1 ) * cols * 2 );
 802 +       for ( i = ( lines - 1 ) * cols * 2; i < lines * cols * 2; i += 2 )
 803 +               vidmem[i] = ' ';
 804 +}
 805 +
 806 +static void putstr(const char *s)
 807 +{
 808 +       int x,y,pos;
 809 +       char c;
 810 +
 811 +       x = RM_SCREEN_INFO.orig_x;
 812 +       y = RM_SCREEN_INFO.orig_y;
 813 +
 814 +       while ( ( c = *s++ ) != '\0' ) {
 815 +               if ( c == '\n' ) {
 816 +                       x = 0;
 817 +                       if ( ++y >= lines ) {
 818 +                               scroll();
 819 +                               y--;
 820 +                       }
 821 +               } else {
 822 +                       vidmem [ ( x + cols * y ) * 2 ] = c;
 823 +                       if ( ++x >= cols ) {
 824 +                               x = 0;
 825 +                               if ( ++y >= lines ) {
 826 +                                       scroll();
 827 +                                       y--;
 828 +                               }
 829 +                       }
 830 +               }
 831 +       }
 832 +
 833 +       RM_SCREEN_INFO.orig_x = x;
 834 +       RM_SCREEN_INFO.orig_y = y;
 835 +
 836 +       pos = (x + cols * y) * 2;       /* Update cursor position */
 837 +       outb_p(14, vidport);
 838 +       outb_p(0xff & (pos >> 9), vidport+1);
 839 +       outb_p(15, vidport);
 840 +       outb_p(0xff & (pos >> 1), vidport+1);
 841 +}
 842 +
 843 +static void* memcpy(void* __dest, __const void* __src,
 844 +                           size_t __n)
 845 +{
 846 +       int i;
 847 +       char *d = (char *)__dest, *s = (char *)__src;
 848 +
 849 +       for (i=0;i<__n;i++) d[i] = s[i];
 850 +       return __dest;
 851 +}
 852 +
 853 +/* ===========================================================================
 854 + * Fill the input buffer. This is called only when the buffer is empty
 855 + * and at least one byte is really needed.
 856 + */
 857 +static int fill_inbuf(void)
 858 +{
 859 +       if (insize != 0) {
 860 +               error("ran out of input data");
 861 +       }
 862 +
 863 +       inbuf = input_data;
 864 +       insize = input_len;
 865 +       inptr = 1;
 866 +       return inbuf[0];
 867 +}
 868 +
 869 +static void error(char *x)
 870 +{
 871 +       putstr("\n\n");
 872 +       putstr(x);
 873 +       putstr("\n\n -- System halted");
 874 +
 875 +       while(1);       /* Halt */
 876 +}
 877 +
 878 +#define STACK_SIZE (4096)
 879 +
 880 +long user_stack [STACK_SIZE];
 881 +
 882 +struct {
 883 +       long * a;
 884 +       short b;
 885 +       } stack_start = { & user_stack [STACK_SIZE] , __BOOT_DS };
 886 +
 887 +static void setup_normal_output_buffer(void)
 888 +{
 889 +#ifdef STANDARD_MEMORY_BIOS_CALL
 890 +       if (RM_EXT_MEM_K < 1024) error("Less than 2MB of memory");
 891 +#else
 892 +       if ((RM_ALT_MEM_K > RM_EXT_MEM_K ? RM_ALT_MEM_K : RM_EXT_MEM_K) < 1024) error("Less than 2MB of memory");
 893 +#endif
 894 +       output_data = (char *)0x100000; /* Points to 1M */
 895 +       free_mem_end_ptr = (long)real_mode;
 896 +}
 897 +
 898 +struct moveparams {
 899 +       uch *low_buffer_start;  int lcount;
 900 +       uch *high_buffer_start; int hcount;
 901 +};
 902 +
 903 +static void setup_output_buffer_if_we_run_high(struct moveparams *mv)
 904 +{
 905 +       high_buffer_start = (uch *)(((ulg)&_end) + HEAP_SIZE);
 906 +#ifdef STANDARD_MEMORY_BIOS_CALL
 907 +       if (RM_EXT_MEM_K < (3*1024)) error("Less than 4MB of memory");
 908 +#else
 909 +       if ((RM_ALT_MEM_K > RM_EXT_MEM_K ? RM_ALT_MEM_K : RM_EXT_MEM_K) <
 910 +                       (3*1024))
 911 +               error("Less than 4MB of memory");
 912 +#endif
 913 +       mv->low_buffer_start = output_data = (char *)LOW_BUFFER_START;
 914 +       low_buffer_end = ((unsigned int)real_mode > LOW_BUFFER_MAX
 915 +         ? LOW_BUFFER_MAX : (unsigned int)real_mode) & ~0xfff;
 916 +       low_buffer_size = low_buffer_end - LOW_BUFFER_START;
 917 +       high_loaded = 1;
 918 +       free_mem_end_ptr = (long)high_buffer_start;
 919 +       if ( (0x100000 + low_buffer_size) > ((ulg)high_buffer_start)) {
 920 +               high_buffer_start = (uch *)(0x100000 + low_buffer_size);
 921 +               mv->hcount = 0; /* say: we need not to move high_buffer */
 922 +       }
 923 +       else mv->hcount = -1;
 924 +       mv->high_buffer_start = high_buffer_start;
 925 +}
 926 +
 927 +static void close_output_buffer_if_we_run_high(struct moveparams *mv)
 928 +{
 929 +       if (bytes_out > low_buffer_size) {
 930 +               mv->lcount = low_buffer_size;
 931 +               if (mv->hcount)
 932 +                       mv->hcount = bytes_out - low_buffer_size;
 933 +       } else {
 934 +               mv->lcount = bytes_out;
 935 +               mv->hcount = 0;
 936 +       }
 937 +}
 938 +
 939 +// When using LZMA in callback, the compressed length is not needed.
 940 +// Otherwise you need a special version of lzma compression program
 941 +// which will pad the compressed length in the header.
 942 +#define _LZMA_IN_CB
 943 +#include "LzmaDecode.h"
 944 +#include "LzmaDecode.c"
 945 +
 946 +#ifdef  _LZMA_IN_CB
 947 +static int read_byte(void *object, unsigned char **buffer, UInt32 *bufferSize);
 948 +#endif
 949 +
 950 +
 951 +/*
 952 + * Do the lzma decompression
 953 + * When using LZMA in callback, the end of input stream is automatically determined
 954 + */
 955 +static int lzma_unzip(void)
 956 +{
 957 +
 958 +       unsigned int i;  /* temp value */
 959 +        unsigned int lc; /* literal context bits */
 960 +        unsigned int lp; /* literal pos state bits */
 961 +        unsigned int pb; /* pos state bits */
 962 +       unsigned char* workspace;
 963 +       unsigned int uncompressedSize = 0;
 964 +       unsigned char* p;
 965 +
 966 +#ifdef  _LZMA_IN_CB
 967 +        ILzmaInCallback callback;
 968 +        callback.Read = read_byte;
 969 +#else
 970 +       unsigned char* inputbuf;
 971 +       unsigned int lzma_workspace_size;
 972 +       unsigned int compressedSize = 0;
 973 +#endif
 974 +
 975 +       /* lzma args */
 976 +       i = get_byte();
 977 +       lc = i % 9, i = i / 9;
 978 +        lp = i % 5, pb = i / 5;
 979 +
 980 +        /* skip dictionary size */
 981 +        for (i = 0; i < 4; i++)
 982 +               get_byte();
 983 +        // get uncompressedSize
 984 +        p= (char*)&uncompressedSize;
 985 +        for (i = 0; i < 4; i++)
 986 +            *p++ = get_byte();
 987 +
 988 +        //get compressedSize
 989 +#ifdef  _LZMA_IN_CB
 990 +        for (i = 0; i < 4; i++)
 991 +               get_byte();
 992 +#else
 993 +        p= (char*)&compressedSize;
 994 +        for (i = 0; i < 4; i++)
 995 +            *p++ = get_byte();
 996 +#endif
 997 +
 998 +#if 0
 999 +        if ( (lc == 5 ) && (lp == 0 ) && ( pb == 0 ))
1000 +        {
1001 +               putstr("got prop!\n");
1002 +        }
1003 +
1004 +#ifndef  _LZMA_IN_CB
1005 +        if( compressedSize == 496722 )
1006 +        {
1007 +           putstr( "got the right sizes\n");
1008 +        }
1009 +        else if ( compressedSize > 496722 )
1010 +        {
1011 +           putstr( "greater !\n");
1012 +        }
1013 +        else if ( compressedSize < 496722 )
1014 +           putstr( "smaller!\n");
1015 +
1016 +#endif
1017 +        if ( uncompressedSize == 1187168 )
1018 +        {
1019 +           putstr( "got the right uncompressed size \n");
1020 +        }else if ( uncompressedSize > 1187168 )
1021 +        {
1022 +           putstr( "uncompressedSize greater!\n");
1023 +        }else
1024 +           putstr( "uncompressedSize smaller!|n");
1025 +#endif
1026 +
1027 +        // point it beyond uncompresedSize
1028 +        workspace = high_buffer_start + uncompressedSize;
1029 +        //
1030 +#ifndef _LZMA_IN_CB
1031 +        lzma_workspace_size =  (LZMA_BASE_SIZE + (LZMA_LIT_SIZE << (lc + lp))) * sizeof(CProb);
1032 +        inputbuf = high_buffer_start + uncompressedSize + lzma_workspace_size;
1033 +        // read the compressed data
1034 +        for( i=0; i < compressedSize; i++)
1035 +        {
1036 +            if ( i % ( 1024 * 10 ) == 0 )
1037 +               putstr(".");
1038 +            *inputbuf++ = get_byte();
1039 +        }
1040 +#endif
1041 +
1042 +       /* decompress kernel */
1043 +#ifdef  _LZMA_IN_CB
1044 +       if (LzmaDecode(workspace, ~0, lc, lp, pb,
1045 +          &callback,
1046 +#else
1047 +       if (LzmaDecode(workspace, lzma_workspace_size, lc, lp, pb,
1048 +          inputbuf - compressedSize, compressedSize,
1049 +#endif
1050 +          (unsigned char*)high_buffer_start, uncompressedSize, &i) == LZMA_RESULT_OK)
1051 +       {
1052 +               if ( i != uncompressedSize )
1053 +                  error( "kernel corrupted!\n");
1054 +               //copy it back to low_buffer
1055 +               if( uncompressedSize > low_buffer_size )
1056 +               {
1057 +                   memcpy((char*)LOW_BUFFER_START, high_buffer_start, low_buffer_size);
1058 +                   memcpy(high_buffer_start, high_buffer_start+low_buffer_size,
1059 +                       uncompressedSize-low_buffer_size);
1060 +               }
1061 +               else
1062 +                   memcpy((char*)LOW_BUFFER_START, high_buffer_start, uncompressedSize );
1063 +               bytes_out = i;
1064 +               return 0;
1065 +       }
1066 +       return 1;
1067 +}
1068 +
1069 +
1070 +#ifdef  _LZMA_IN_CB
1071 +static int read_byte(void *object, unsigned char **buffer, UInt32 *bufferSize)
1072 +{
1073 +       static unsigned int i = 0;
1074 +       static unsigned char val;
1075 +       *bufferSize = 1;
1076 +       val = get_byte();
1077 +       *buffer = &val;
1078 +        if ( i++ % ( 1024 * 50 ) == 0 )
1079 +               putstr(".");
1080 +       return LZMA_RESULT_OK;
1081 +}
1082 +#endif
1083 +
1084 +asmlinkage int decompress_kernel(struct moveparams *mv, void *rmode)
1085 +{
1086 +       real_mode = rmode;
1087 +
1088 +       if (RM_SCREEN_INFO.orig_video_mode == 7) {
1089 +               vidmem = (char *) 0xb0000;
1090 +               vidport = 0x3b4;
1091 +       } else {
1092 +               vidmem = (char *) 0xb8000;
1093 +               vidport = 0x3d4;
1094 +       }
1095 +
1096 +       lines = RM_SCREEN_INFO.orig_video_lines;
1097 +       cols = RM_SCREEN_INFO.orig_video_cols;
1098 +
1099 +       if (free_mem_ptr < 0x100000) setup_normal_output_buffer();
1100 +       else setup_output_buffer_if_we_run_high(mv);
1101 +
1102 +       putstr("LZMA vmlinuz: Ming-Ching Tiew <mctiew@yahoo.com> ...");
1103 +       if( lzma_unzip() != 0 )
1104 +       {
1105 +          error("inflate error\n");
1106 +       }
1107 +       putstr("Ok, booting the kernel.\n");
1108 +       if (high_loaded) close_output_buffer_if_we_run_high(mv);
1109 +       return high_loaded;
1110 +}
1111 diff -Nur linux-2.6.21.1/arch/i386/boot/compressed/Makefile linux-2.6.21.1-owrt/arch/i386/boot/compressed/Makefile
1112 --- linux-2.6.21.1/arch/i386/boot/compressed/Makefile   2007-04-27 23:49:26.000000000 +0200
1113 +++ linux-2.6.21.1-owrt/arch/i386/boot/compressed/Makefile      2007-05-14 12:01:25.000000000 +0200
1114 @@ -4,7 +4,7 @@
1115  # create a compressed vmlinux image from the original vmlinux
1116  #
1117
1118 -targets                := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o \
1119 +targets                := vmlinux vmlinux.bin vmlinux.bin.lzma head.o lzma_misc.o piggy.o \
1120                         vmlinux.bin.all vmlinux.relocs
1121  EXTRA_AFLAGS   := -traditional
1122
1123 @@ -12,7 +12,7 @@
1124  CFLAGS_misc.o += -fPIC
1125  hostprogs-y    := relocs
1126
1127 -$(obj)/vmlinux: $(src)/vmlinux.lds $(obj)/head.o $(obj)/misc.o $(obj)/piggy.o FORCE
1128 +$(obj)/vmlinux: $(src)/vmlinux.lds $(obj)/head.o $(obj)/lzma_misc.o $(obj)/piggy.o FORCE
1129         $(call if_changed,ld)
1130         @:
1131
1132 @@ -32,14 +32,14 @@
1133         $(call if_changed,relocbin)
1134
1135  ifdef CONFIG_RELOCATABLE
1136 -$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin.all FORCE
1137 -       $(call if_changed,gzip)
1138 +$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin.all FORCE
1139 +       $(call if_changed,lzma)
1140  else
1141 -$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
1142 -       $(call if_changed,gzip)
1143 +$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE
1144 +       $(call if_changed,lzma)
1145  endif
1146
1147  LDFLAGS_piggy.o := -r --format binary --oformat elf32-i386 -T
1148
1149 -$(obj)/piggy.o: $(src)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE
1150 +$(obj)/piggy.o: $(src)/vmlinux.scr $(obj)/vmlinux.bin.lzma FORCE
1151         $(call if_changed,ld)
1152 diff -Nur linux-2.6.21.1/scripts/Makefile.lib linux-2.6.21.1-owrt/scripts/Makefile.lib
1153 --- linux-2.6.21.1/scripts/Makefile.lib 2007-04-27 23:49:26.000000000 +0200
1154 +++ linux-2.6.21.1-owrt/scripts/Makefile.lib    2007-05-14 11:55:38.000000000 +0200
1155 @@ -162,4 +162,9 @@
1156  quiet_cmd_gzip = GZIP    $@
1157  cmd_gzip = gzip -f -9 < $< > $@
1158
1159 -
1160 +# LZMA
1161 +#
1162 +quiet_cmd_lzma = LZMA $@
1163 +cmd_lzma = lzma e $< $@ -lc7 -lp0 -pb0
1164 +# to use lzmacomp,
1165 +# cmd_lzma = lzmacomp $< 700 > $@