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Merge pull request #331 from ldv-alt/dev

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Export only those symbols that are part of public API
This commit is contained in:
Yann Collet 2017-03-12 03:16:23 -07:00 committed by GitHub
commit b9132bedcd
3 changed files with 21 additions and 13 deletions
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2
lib/Makefile
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@ -95,7 +95,7 @@ ifneq (,$(filter Windows%,$(OS)))
@$(CC) $(FLAGS) -DLZ4_DLL_EXPORT=1 -shared $^ -o dll\$@.dll @$(CC) $(FLAGS) -DLZ4_DLL_EXPORT=1 -shared $^ -o dll\$@.dll
dlltool -D dll\liblz4.dll -d dll\liblz4.def -l dll\liblz4.lib dlltool -D dll\liblz4.dll -d dll\liblz4.def -l dll\liblz4.lib
else else
@$(CC) $(FLAGS) -shared $^ -fPIC $(SONAME_FLAGS) -o $@ @$(CC) $(FLAGS) -shared $^ -fPIC -fvisibility=hidden $(SONAME_FLAGS) -o $@
@echo creating versioned links @echo creating versioned links
@ln -sf $@ liblz4.$(SHARED_EXT_MAJOR) @ln -sf $@ liblz4.$(SHARED_EXT_MAJOR)
@ln -sf $@ liblz4.$(SHARED_EXT) @ln -sf $@ liblz4.$(SHARED_EXT)

28
lib/lz4.h
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@ -72,11 +72,15 @@ extern "C" {
/* /*
* LZ4_DLL_EXPORT : * LZ4_DLL_EXPORT :
* Enable exporting of functions when building a Windows DLL * Enable exporting of functions when building a Windows DLL
* LZ4LIB_API :
* Control library symbols visibility.
*/ */
#if defined(LZ4_DLL_EXPORT) && (LZ4_DLL_EXPORT==1) #if defined(LZ4_DLL_EXPORT) && (LZ4_DLL_EXPORT==1)
# define LZ4LIB_API __declspec(dllexport) # define LZ4LIB_API __declspec(dllexport)
#elif defined(LZ4_DLL_IMPORT) && (LZ4_DLL_IMPORT==1) #elif defined(LZ4_DLL_IMPORT) && (LZ4_DLL_IMPORT==1)
# define LZ4LIB_API __declspec(dllimport) /* It isn't required but allows to generate better code, saving a function pointer load from the IAT and an indirect jump.*/ # define LZ4LIB_API __declspec(dllimport) /* It isn't required but allows to generate better code, saving a function pointer load from the IAT and an indirect jump.*/
#elif defined(__GNUC__) && (__GNUC__ >= 4)
# define LZ4LIB_API __attribute__ ((__visibility__ ("default")))
#else #else
# define LZ4LIB_API # define LZ4LIB_API
#endif #endif
@ -431,12 +435,12 @@ union LZ4_streamDecode_u {
#endif /* LZ4_DISABLE_DEPRECATE_WARNINGS */ #endif /* LZ4_DISABLE_DEPRECATE_WARNINGS */
/* Obsolete compression functions */ /* Obsolete compression functions */
LZ4_DEPRECATED("use LZ4_compress_default() instead") int LZ4_compress (const char* source, char* dest, int sourceSize); LZ4LIB_API LZ4_DEPRECATED("use LZ4_compress_default() instead") int LZ4_compress (const char* source, char* dest, int sourceSize);
LZ4_DEPRECATED("use LZ4_compress_default() instead") int LZ4_compress_limitedOutput (const char* source, char* dest, int sourceSize, int maxOutputSize); LZ4LIB_API LZ4_DEPRECATED("use LZ4_compress_default() instead") int LZ4_compress_limitedOutput (const char* source, char* dest, int sourceSize, int maxOutputSize);
LZ4_DEPRECATED("use LZ4_compress_fast_extState() instead") int LZ4_compress_withState (void* state, const char* source, char* dest, int inputSize); LZ4LIB_API LZ4_DEPRECATED("use LZ4_compress_fast_extState() instead") int LZ4_compress_withState (void* state, const char* source, char* dest, int inputSize);
LZ4_DEPRECATED("use LZ4_compress_fast_extState() instead") int LZ4_compress_limitedOutput_withState (void* state, const char* source, char* dest, int inputSize, int maxOutputSize); LZ4LIB_API LZ4_DEPRECATED("use LZ4_compress_fast_extState() instead") int LZ4_compress_limitedOutput_withState (void* state, const char* source, char* dest, int inputSize, int maxOutputSize);
LZ4_DEPRECATED("use LZ4_compress_fast_continue() instead") int LZ4_compress_continue (LZ4_stream_t* LZ4_streamPtr, const char* source, char* dest, int inputSize); LZ4LIB_API LZ4_DEPRECATED("use LZ4_compress_fast_continue() instead") int LZ4_compress_continue (LZ4_stream_t* LZ4_streamPtr, const char* source, char* dest, int inputSize);
LZ4_DEPRECATED("use LZ4_compress_fast_continue() instead") int LZ4_compress_limitedOutput_continue (LZ4_stream_t* LZ4_streamPtr, const char* source, char* dest, int inputSize, int maxOutputSize); LZ4LIB_API LZ4_DEPRECATED("use LZ4_compress_fast_continue() instead") int LZ4_compress_limitedOutput_continue (LZ4_stream_t* LZ4_streamPtr, const char* source, char* dest, int inputSize, int maxOutputSize);
/* Obsolete decompression functions */ /* Obsolete decompression functions */
/* These function names are completely deprecated and must no longer be used. /* These function names are completely deprecated and must no longer be used.
@ -449,14 +453,14 @@ LZ4_DEPRECATED("use LZ4_compress_fast_continue() instead") int LZ4_compress_limi
/* int LZ4_uncompress_unknownOutputSize (const char* source, char* dest, int isize, int maxOutputSize); */ /* int LZ4_uncompress_unknownOutputSize (const char* source, char* dest, int isize, int maxOutputSize); */
/* Obsolete streaming functions; use new streaming interface whenever possible */ /* Obsolete streaming functions; use new streaming interface whenever possible */
LZ4_DEPRECATED("use LZ4_createStream() instead") void* LZ4_create (char* inputBuffer); LZ4LIB_API LZ4_DEPRECATED("use LZ4_createStream() instead") void* LZ4_create (char* inputBuffer);
LZ4_DEPRECATED("use LZ4_createStream() instead") int LZ4_sizeofStreamState(void); LZ4LIB_API LZ4_DEPRECATED("use LZ4_createStream() instead") int LZ4_sizeofStreamState(void);
LZ4_DEPRECATED("use LZ4_resetStream() instead") int LZ4_resetStreamState(void* state, char* inputBuffer); LZ4LIB_API LZ4_DEPRECATED("use LZ4_resetStream() instead") int LZ4_resetStreamState(void* state, char* inputBuffer);
LZ4_DEPRECATED("use LZ4_saveDict() instead") char* LZ4_slideInputBuffer (void* state); LZ4LIB_API LZ4_DEPRECATED("use LZ4_saveDict() instead") char* LZ4_slideInputBuffer (void* state);
/* Obsolete streaming decoding functions */ /* Obsolete streaming decoding functions */
LZ4_DEPRECATED("use LZ4_decompress_safe_usingDict() instead") int LZ4_decompress_safe_withPrefix64k (const char* src, char* dst, int compressedSize, int maxDstSize); LZ4LIB_API LZ4_DEPRECATED("use LZ4_decompress_safe_usingDict() instead") int LZ4_decompress_safe_withPrefix64k (const char* src, char* dst, int compressedSize, int maxDstSize);
LZ4_DEPRECATED("use LZ4_decompress_fast_usingDict() instead") int LZ4_decompress_fast_withPrefix64k (const char* src, char* dst, int originalSize); LZ4LIB_API LZ4_DEPRECATED("use LZ4_decompress_fast_usingDict() instead") int LZ4_decompress_fast_withPrefix64k (const char* src, char* dst, int originalSize);
#if defined (__cplusplus) #if defined (__cplusplus)

4
lib/lz4frame.h
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@ -63,11 +63,15 @@ extern "C" {
/* /*
* LZ4_DLL_EXPORT : * LZ4_DLL_EXPORT :
* Enable exporting of functions when building a Windows DLL * Enable exporting of functions when building a Windows DLL
* LZ4FLIB_API :
* Control library symbols visibility.
*/ */
#if defined(LZ4_DLL_EXPORT) && (LZ4_DLL_EXPORT==1) #if defined(LZ4_DLL_EXPORT) && (LZ4_DLL_EXPORT==1)
# define LZ4FLIB_API __declspec(dllexport) # define LZ4FLIB_API __declspec(dllexport)
#elif defined(LZ4_DLL_IMPORT) && (LZ4_DLL_IMPORT==1) #elif defined(LZ4_DLL_IMPORT) && (LZ4_DLL_IMPORT==1)
# define LZ4FLIB_API __declspec(dllimport) # define LZ4FLIB_API __declspec(dllimport)
#elif defined(__GNUC__) && (__GNUC__ >= 4)
# define LZ4FLIB_API __attribute__ ((__visibility__ ("default")))
#else #else
# define LZ4FLIB_API # define LZ4FLIB_API
#endif #endif