63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
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/*
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* lib_common.h - internal header included by all library code
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*/
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#ifndef LIB_LIB_COMMON_H
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#define LIB_LIB_COMMON_H
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#ifdef LIBDEFLATE_H
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/*
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* When building the library, LIBDEFLATEAPI needs to be defined properly before
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* including libdeflate.h.
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*/
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# error "lib_common.h must always be included before libdeflate.h"
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#endif
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#if defined(LIBDEFLATE_DLL) && (defined(_WIN32) || defined(__CYGWIN__))
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# define LIBDEFLATE_EXPORT_SYM __declspec(dllexport)
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#elif defined(__GNUC__)
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# define LIBDEFLATE_EXPORT_SYM __attribute__((visibility("default")))
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#else
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# define LIBDEFLATE_EXPORT_SYM
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#endif
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/*
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* On i386, gcc assumes that the stack is 16-byte aligned at function entry.
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* However, some compilers (e.g. MSVC) and programming languages (e.g. Delphi)
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* only guarantee 4-byte alignment when calling functions. This is mainly an
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* issue on Windows, but it has been seen on Linux too. Work around this ABI
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* incompatibility by realigning the stack pointer when entering libdeflate.
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* This prevents crashes in SSE/AVX code.
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*/
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#if defined(__GNUC__) && defined(__i386__)
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# define LIBDEFLATE_ALIGN_STACK __attribute__((force_align_arg_pointer))
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#else
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# define LIBDEFLATE_ALIGN_STACK
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#endif
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#define LIBDEFLATEAPI LIBDEFLATE_EXPORT_SYM LIBDEFLATE_ALIGN_STACK
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#include "common_defs.h"
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extern void* __malloc(size_t size);
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extern void __free(void* ptr);
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void *libdeflate_aligned_malloc(size_t alignment, size_t size);
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void libdeflate_aligned_free(void *ptr);
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#define ASSERT(expr) (void)(expr)
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#define CONCAT_IMPL(a, b) a##b
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#define CONCAT(a, b) CONCAT_IMPL(a, b)
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#define ADD_SUFFIX(name) CONCAT(name, SUFFIX)
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#ifdef LOGGING
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void __debug(char* str);
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#define DEBUG(str) __debug(str);
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#else
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#define DEBUG(str)
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#endif
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#endif /* LIB_LIB_COMMON_H */
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