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Update zstd to 1.5.5.

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This commit is contained in:
Bartosz Taudul
2023-04-05 17:16:24 +02:00
parent 856027a27d
commit ab6c492117
21 changed files with 939 additions and 585 deletions
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zstd/decompress/huf_decompress.c
+4 -4
View File
@@ -696,7 +696,7 @@ void HUF_decompress4X1_usingDTable_internal_fast_c_loop(HUF_DecompressFastArgs*
/* Copy the arguments to local variables */
ZSTD_memcpy(&bits, &args->bits, sizeof(bits));
ZSTD_memcpy(&ip, &args->ip, sizeof(ip));
ZSTD_memcpy((void*)(&ip), &args->ip, sizeof(ip));
ZSTD_memcpy(&op, &args->op, sizeof(op));
assert(MEM_isLittleEndian());
@@ -779,7 +779,7 @@ _out:
/* Save the final values of each of the state variables back to args. */
ZSTD_memcpy(&args->bits, &bits, sizeof(bits));
ZSTD_memcpy(&args->ip, &ip, sizeof(ip));
ZSTD_memcpy((void*)(&args->ip), &ip, sizeof(ip));
ZSTD_memcpy(&args->op, &op, sizeof(op));
}
@@ -1476,7 +1476,7 @@ void HUF_decompress4X2_usingDTable_internal_fast_c_loop(HUF_DecompressFastArgs*
/* Copy the arguments to local registers. */
ZSTD_memcpy(&bits, &args->bits, sizeof(bits));
ZSTD_memcpy(&ip, &args->ip, sizeof(ip));
ZSTD_memcpy((void*)(&ip), &args->ip, sizeof(ip));
ZSTD_memcpy(&op, &args->op, sizeof(op));
oend[0] = op[1];
@@ -1599,7 +1599,7 @@ _out:
/* Save the final values of each of the state variables back to args. */
ZSTD_memcpy(&args->bits, &bits, sizeof(bits));
ZSTD_memcpy(&args->ip, &ip, sizeof(ip));
ZSTD_memcpy((void*)(&args->ip), &ip, sizeof(ip));
ZSTD_memcpy(&args->op, &op, sizeof(op));
}
zstd/decompress/zstd_ddict.c
+1
View File
@@ -14,6 +14,7 @@
/*-*******************************************************
* Dependencies
*********************************************************/
#include "../common/allocations.h" /* ZSTD_customMalloc, ZSTD_customFree */
#include "../common/zstd_deps.h" /* ZSTD_memcpy, ZSTD_memmove, ZSTD_memset */
#include "../common/cpu.h" /* bmi2 */
#include "../common/mem.h" /* low level memory routines */
zstd/decompress/zstd_decompress.c
+40 -37
View File
@@ -55,6 +55,7 @@
/*-*******************************************************
* Dependencies
*********************************************************/
#include "../common/allocations.h" /* ZSTD_customMalloc, ZSTD_customCalloc, ZSTD_customFree */
#include "../common/zstd_deps.h" /* ZSTD_memcpy, ZSTD_memmove, ZSTD_memset */
#include "../common/mem.h" /* low level memory routines */
#define FSE_STATIC_LINKING_ONLY
@@ -588,49 +589,52 @@ static size_t readSkippableFrameSize(void const* src, size_t srcSize)
sizeU32 = MEM_readLE32((BYTE const*)src + ZSTD_FRAMEIDSIZE);
RETURN_ERROR_IF((U32)(sizeU32 + ZSTD_SKIPPABLEHEADERSIZE) < sizeU32,
frameParameter_unsupported, "");
{
size_t const skippableSize = skippableHeaderSize + sizeU32;
{ size_t const skippableSize = skippableHeaderSize + sizeU32;
RETURN_ERROR_IF(skippableSize > srcSize, srcSize_wrong, "");
return skippableSize;
}
}
/*! ZSTD_readSkippableFrame() :
* Retrieves a zstd skippable frame containing data given by src, and writes it to dst buffer.
* Retrieves content of a skippable frame, and writes it to dst buffer.
*
* The parameter magicVariant will receive the magicVariant that was supplied when the frame was written,
* i.e. magicNumber - ZSTD_MAGIC_SKIPPABLE_START. This can be NULL if the caller is not interested
* in the magicVariant.
*
* Returns an error if destination buffer is not large enough, or if the frame is not skippable.
* Returns an error if destination buffer is not large enough, or if this is not a valid skippable frame.
*
* @return : number of bytes written or a ZSTD error.
*/
ZSTDLIB_API size_t ZSTD_readSkippableFrame(void* dst, size_t dstCapacity, unsigned* magicVariant,
const void* src, size_t srcSize)
size_t ZSTD_readSkippableFrame(void* dst, size_t dstCapacity,
unsigned* magicVariant, /* optional, can be NULL */
const void* src, size_t srcSize)
{
U32 const magicNumber = MEM_readLE32(src);
size_t skippableFrameSize = readSkippableFrameSize(src, srcSize);
size_t skippableContentSize = skippableFrameSize - ZSTD_SKIPPABLEHEADERSIZE;
RETURN_ERROR_IF(srcSize < ZSTD_SKIPPABLEHEADERSIZE, srcSize_wrong, "");
/* check input validity */
RETURN_ERROR_IF(!ZSTD_isSkippableFrame(src, srcSize), frameParameter_unsupported, "");
RETURN_ERROR_IF(skippableFrameSize < ZSTD_SKIPPABLEHEADERSIZE || skippableFrameSize > srcSize, srcSize_wrong, "");
RETURN_ERROR_IF(skippableContentSize > dstCapacity, dstSize_tooSmall, "");
{ U32 const magicNumber = MEM_readLE32(src);
size_t skippableFrameSize = readSkippableFrameSize(src, srcSize);
size_t skippableContentSize = skippableFrameSize - ZSTD_SKIPPABLEHEADERSIZE;
/* deliver payload */
if (skippableContentSize > 0 && dst != NULL)
ZSTD_memcpy(dst, (const BYTE *)src + ZSTD_SKIPPABLEHEADERSIZE, skippableContentSize);
if (magicVariant != NULL)
*magicVariant = magicNumber - ZSTD_MAGIC_SKIPPABLE_START;
return skippableContentSize;
/* check input validity */
RETURN_ERROR_IF(!ZSTD_isSkippableFrame(src, srcSize), frameParameter_unsupported, "");
RETURN_ERROR_IF(skippableFrameSize < ZSTD_SKIPPABLEHEADERSIZE || skippableFrameSize > srcSize, srcSize_wrong, "");
RETURN_ERROR_IF(skippableContentSize > dstCapacity, dstSize_tooSmall, "");
/* deliver payload */
if (skippableContentSize > 0 && dst != NULL)
ZSTD_memcpy(dst, (const BYTE *)src + ZSTD_SKIPPABLEHEADERSIZE, skippableContentSize);
if (magicVariant != NULL)
*magicVariant = magicNumber - ZSTD_MAGIC_SKIPPABLE_START;
return skippableContentSize;
}
}
/** ZSTD_findDecompressedSize() :
* compatible with legacy mode
* `srcSize` must be the exact length of some number of ZSTD compressed and/or
* skippable frames
* @return : decompressed size of the frames contained */
* note: compatible with legacy mode
* @return : decompressed size of the frames contained */
unsigned long long ZSTD_findDecompressedSize(const void* src, size_t srcSize)
{
unsigned long long totalDstSize = 0;
@@ -640,9 +644,7 @@ unsigned long long ZSTD_findDecompressedSize(const void* src, size_t srcSize)
if ((magicNumber & ZSTD_MAGIC_SKIPPABLE_MASK) == ZSTD_MAGIC_SKIPPABLE_START) {
size_t const skippableSize = readSkippableFrameSize(src, srcSize);
if (ZSTD_isError(skippableSize)) {
return ZSTD_CONTENTSIZE_ERROR;
}
if (ZSTD_isError(skippableSize)) return ZSTD_CONTENTSIZE_ERROR;
assert(skippableSize <= srcSize);
src = (const BYTE *)src + skippableSize;
@@ -650,17 +652,17 @@ unsigned long long ZSTD_findDecompressedSize(const void* src, size_t srcSize)
continue;
}
{ unsigned long long const ret = ZSTD_getFrameContentSize(src, srcSize);
if (ret >= ZSTD_CONTENTSIZE_ERROR) return ret;
{ unsigned long long const fcs = ZSTD_getFrameContentSize(src, srcSize);
if (fcs >= ZSTD_CONTENTSIZE_ERROR) return fcs;
/* check for overflow */
if (totalDstSize + ret < totalDstSize) return ZSTD_CONTENTSIZE_ERROR;
totalDstSize += ret;
if (totalDstSize + fcs < totalDstSize)
return ZSTD_CONTENTSIZE_ERROR; /* check for overflow */
totalDstSize += fcs;
}
/* skip to next frame */
{ size_t const frameSrcSize = ZSTD_findFrameCompressedSize(src, srcSize);
if (ZSTD_isError(frameSrcSize)) {
return ZSTD_CONTENTSIZE_ERROR;
}
if (ZSTD_isError(frameSrcSize)) return ZSTD_CONTENTSIZE_ERROR;
assert(frameSrcSize <= srcSize);
src = (const BYTE *)src + frameSrcSize;
srcSize -= frameSrcSize;
@@ -1090,17 +1092,18 @@ static size_t ZSTD_decompressMultiFrame(ZSTD_DCtx* dctx,
}
#endif
{ U32 const magicNumber = MEM_readLE32(src);
DEBUGLOG(4, "reading magic number %08X (expecting %08X)",
(unsigned)magicNumber, ZSTD_MAGICNUMBER);
if (srcSize >= 4) {
U32 const magicNumber = MEM_readLE32(src);
DEBUGLOG(5, "reading magic number %08X", (unsigned)magicNumber);
if ((magicNumber & ZSTD_MAGIC_SKIPPABLE_MASK) == ZSTD_MAGIC_SKIPPABLE_START) {
/* skippable frame detected : skip it */
size_t const skippableSize = readSkippableFrameSize(src, srcSize);
FORWARD_IF_ERROR(skippableSize, "readSkippableFrameSize failed");
FORWARD_IF_ERROR(skippableSize, "invalid skippable frame");
assert(skippableSize <= srcSize);
src = (const BYTE *)src + skippableSize;
srcSize -= skippableSize;
continue;
continue; /* check next frame */
} }
if (ddict) {
zstd/decompress/zstd_decompress_block.c
+16 -17
View File
@@ -1232,11 +1232,7 @@ ZSTD_decodeSequence(seqState_t* seqState, const ZSTD_longOffset_e longOffsets)
/* sequence */
{ size_t offset;
#if defined(__clang__)
if (LIKELY(ofBits > 1)) {
#else
if (ofBits > 1) {
#endif
ZSTD_STATIC_ASSERT(ZSTD_lo_isLongOffset == 1);
ZSTD_STATIC_ASSERT(LONG_OFFSETS_MAX_EXTRA_BITS_32 == 5);
ZSTD_STATIC_ASSERT(STREAM_ACCUMULATOR_MIN_32 > LONG_OFFSETS_MAX_EXTRA_BITS_32);
@@ -1273,11 +1269,7 @@ ZSTD_decodeSequence(seqState_t* seqState, const ZSTD_longOffset_e longOffsets)
seq.offset = offset;
}
#if defined(__clang__)
if (UNLIKELY(mlBits > 0))
#else
if (mlBits > 0)
#endif
seq.matchLength += BIT_readBitsFast(&seqState->DStream, mlBits/*>0*/);
if (MEM_32bits() && (mlBits+llBits >= STREAM_ACCUMULATOR_MIN_32-LONG_OFFSETS_MAX_EXTRA_BITS_32))
@@ -1287,11 +1279,7 @@ ZSTD_decodeSequence(seqState_t* seqState, const ZSTD_longOffset_e longOffsets)
/* Ensure there are enough bits to read the rest of data in 64-bit mode. */
ZSTD_STATIC_ASSERT(16+LLFSELog+MLFSELog+OffFSELog < STREAM_ACCUMULATOR_MIN_64);
#if defined(__clang__)
if (UNLIKELY(llBits > 0))
#else
if (llBits > 0)
#endif
seq.litLength += BIT_readBitsFast(&seqState->DStream, llBits/*>0*/);
if (MEM_32bits())
@@ -1987,7 +1975,7 @@ ZSTD_decompressSequencesLong(ZSTD_DCtx* dctx,
/**
* @returns The total size of the history referencable by zstd, including
* @returns The total size of the history referenceable by zstd, including
* both the prefix and the extDict. At @p op any offset larger than this
* is invalid.
*/
@@ -2124,7 +2112,9 @@ ZSTD_decompressBlock_internal(ZSTD_DCtx* dctx,
ip += seqHSize;
srcSize -= seqHSize;
RETURN_ERROR_IF(dst == NULL && nbSeq > 0, dstSize_tooSmall, "NULL not handled");
RETURN_ERROR_IF((dst == NULL || dstCapacity == 0) && nbSeq > 0, dstSize_tooSmall, "NULL not handled");
RETURN_ERROR_IF(MEM_64bits() && sizeof(size_t) == sizeof(void*) && (size_t)(-1) - (size_t)dst < (size_t)(1 << 20), dstSize_tooSmall,
"invalid dst");
/* If we could potentially have long offsets, or we might want to use the prefetch decoder,
* compute information about the share of long offsets, and the maximum nbAdditionalBits.
@@ -2181,9 +2171,9 @@ void ZSTD_checkContinuity(ZSTD_DCtx* dctx, const void* dst, size_t dstSize)
}
size_t ZSTD_decompressBlock(ZSTD_DCtx* dctx,
void* dst, size_t dstCapacity,
const void* src, size_t srcSize)
size_t ZSTD_decompressBlock_deprecated(ZSTD_DCtx* dctx,
void* dst, size_t dstCapacity,
const void* src, size_t srcSize)
{
size_t dSize;
ZSTD_checkContinuity(dctx, dst, dstCapacity);
@@ -2191,3 +2181,12 @@ size_t ZSTD_decompressBlock(ZSTD_DCtx* dctx,
dctx->previousDstEnd = (char*)dst + dSize;
return dSize;
}
/* NOTE: Must just wrap ZSTD_decompressBlock_deprecated() */
size_t ZSTD_decompressBlock(ZSTD_DCtx* dctx,
void* dst, size_t dstCapacity,
const void* src, size_t srcSize)
{
return ZSTD_decompressBlock_deprecated(dctx, dst, dstCapacity, src, srcSize);
}
zstd/decompress/zstd_decompress_block.h
+5
View File
@@ -64,5 +64,10 @@ void ZSTD_buildFSETable(ZSTD_seqSymbol* dt,
unsigned tableLog, void* wksp, size_t wkspSize,
int bmi2);
/* Internal definition of ZSTD_decompressBlock() to avoid deprecation warnings. */
size_t ZSTD_decompressBlock_deprecated(ZSTD_DCtx* dctx,
void* dst, size_t dstCapacity,
const void* src, size_t srcSize);
#endif /* ZSTD_DEC_BLOCK_H */