lib/zstd
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fixed asan warning

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This commit is contained in:
Yann Collet
2015-11-26 11:43:00 +01:00
parent 7447ee96f6
commit 6bcdeac954
3 changed files with 22 additions and 13 deletions
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2
lib/zstd_buffered.c
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@@ -213,7 +213,7 @@ static size_t ZBUFF_compressContinue_generic(ZBUFF_CCtx* zbc,
/* prepare next block */ /* prepare next block */
zbc->inBuffTarget = zbc->inBuffPos + zbc->blockSize; zbc->inBuffTarget = zbc->inBuffPos + zbc->blockSize;
if (zbc->inBuffTarget > zbc->inBuffSize) if (zbc->inBuffTarget > zbc->inBuffSize)
{ zbc->inBuffPos = 0; zbc->inBuffTarget = zbc->blockSize; } { zbc->inBuffPos = 0; zbc->inBuffTarget = zbc->blockSize; } /* note : inBuffSize >= blockSize */
zbc->inToCompress = zbc->inBuffPos; zbc->inToCompress = zbc->inBuffPos;
if (cDst == op) { op += cSize; break; } /* no need to flush */ if (cDst == op) { op += cSize; break; } /* no need to flush */
zbc->outBuffContentSize = cSize; zbc->outBuffContentSize = cSize;

2
lib/zstd_compress.c
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@@ -748,7 +748,7 @@ size_t ZSTD_compressBlock_fast_generic(ZSTD_CCtx* zc,
/* init */ /* init */
ZSTD_resetSeqStore(seqStorePtr); ZSTD_resetSeqStore(seqStorePtr);
if (ip == base) if (ip < base+4)
{ {
hashTable[ZSTD_hashPtr(base+1, hBits, mls)] = 1; hashTable[ZSTD_hashPtr(base+1, hBits, mls)] = 1;
hashTable[ZSTD_hashPtr(base+2, hBits, mls)] = 2; hashTable[ZSTD_hashPtr(base+2, hBits, mls)] = 2;

17
programs/zbufftest.c
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@@ -229,7 +229,7 @@ static size_t findDiff(const void* buf1, const void* buf2, size_t max)
# define CHECK(cond, ...) if (cond) { DISPLAY("Error => "); DISPLAY(__VA_ARGS__); \ # define CHECK(cond, ...) if (cond) { DISPLAY("Error => "); DISPLAY(__VA_ARGS__); \
DISPLAY(" (seed %u, test nb %u) \n", seed, testNb); goto _output_error; } DISPLAY(" (seed %u, test nb %u) \n", seed, testNb); goto _output_error; }
static const U32 maxSrcLog = 23; static const U32 maxSrcLog = 24;
static const U32 maxSampleLog = 19; static const U32 maxSampleLog = 19;
int fuzzerTests(U32 seed, U32 nbTests, unsigned startTest, double compressibility) int fuzzerTests(U32 seed, U32 nbTests, unsigned startTest, double compressibility)
@@ -313,8 +313,8 @@ int fuzzerTests(U32 seed, U32 nbTests, unsigned startTest, double compressibilit
/* Multi - segments compression test */ /* Multi - segments compression test */
XXH64_reset(&crc64, 0); XXH64_reset(&crc64, 0);
nbChunks = (FUZ_rand(&lseed) & 127) + 2; nbChunks = (FUZ_rand(&lseed) & 127) + 2;
sampleSizeLog = FUZ_rand(&lseed) % maxSrcLog; maxTestSize = FUZ_rand(&lseed) % maxSrcLog;
maxTestSize = (size_t)1 << sampleSizeLog; maxTestSize = (size_t)1 << maxTestSize;
maxTestSize += FUZ_rand(&lseed) & (maxTestSize-1); maxTestSize += FUZ_rand(&lseed) & (maxTestSize-1);
ZBUFF_compressInit(zc, (FUZ_rand(&lseed) % (20 - (sampleSizeLog/3))) + 1); ZBUFF_compressInit(zc, (FUZ_rand(&lseed) % (20 - (sampleSizeLog/3))) + 1);
totalTestSize = 0; totalTestSize = 0;
@@ -334,9 +334,18 @@ int fuzzerTests(U32 seed, U32 nbTests, unsigned startTest, double compressibilit
errorCode = ZBUFF_compressContinue(zc, cBuffer+cSize, &genSize, srcBuffer+sampleStart, &readSize); errorCode = ZBUFF_compressContinue(zc, cBuffer+cSize, &genSize, srcBuffer+sampleStart, &readSize);
CHECK (ZBUFF_isError(errorCode), "compression error : %s", ZBUFF_getErrorName(errorCode)); CHECK (ZBUFF_isError(errorCode), "compression error : %s", ZBUFF_getErrorName(errorCode));
CHECK (readSize != sampleSize, "compression test condition not respected : input should be fully consumed") CHECK (readSize != sampleSize, "compression test condition not respected : input should be fully consumed")
cSize += genSize; cSize += genSize;
totalTestSize += sampleSize; totalTestSize += sampleSize;
if ((FUZ_rand(&lseed) & 15) == 0)
{
/* add a few random flushes operations, to mess around */
genSize = cBufferSize - cSize;
errorCode = ZBUFF_compressFlush(zc, cBuffer+cSize, &genSize);
CHECK (ZBUFF_isError(errorCode), "flush error : %s", ZBUFF_getErrorName(errorCode));
cSize += genSize;
}
if (totalTestSize > maxTestSize) break; if (totalTestSize > maxTestSize) break;
} }
genSize = cBufferSize - cSize; genSize = cBufferSize - cSize;