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87 lines
2.2 KiB
87 lines
2.2 KiB
5 years ago
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/* Include Guard */
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#ifndef SHARED_KERNELS_H
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#define SHARED_KERNELS_H
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/**
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* Includes
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*/
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#include <cuda_runtime.h>
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/**
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* Defines
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*/
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/**
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* When building a library, it is a good idea to expose as few as possible
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* internal symbols (functions, objects, data structures). Not only does it
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* prevent users from relying on private portions of the library that are
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* subject to change without any notice, but it can have performance
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* advantages:
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*
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* - It can make shared libraries link faster at dynamic-load time.
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* - It can make internal function calls faster by bypassing the PLT.
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*
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* Thus, the compilation should by default hide all symbols, while the API
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* headers will explicitly mark public the few symbols the users are permitted
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* to use with a PUBLIC tag. We also define a HIDDEN tag, since it may be
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* required to explicitly tag certain C++ types as visible in order for
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* exceptions to function correctly.
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*
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* Additional complexity comes from non-POSIX-compliant systems, which
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* artificially impose a requirement on knowing whether we are building or
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* using a DLL.
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*
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* The above commentary and below code is inspired from
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* 'https://gcc.gnu.org/wiki/Visibility'
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*/
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#if defined(_WIN32) || defined(__CYGWIN__)
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# define TAG_ATTRIBUTE_EXPORT __declspec(dllexport)
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# define TAG_ATTRIBUTE_IMPORT __declspec(dllimport)
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# define TAG_ATTRIBUTE_HIDDEN
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#elif __GNUC__ >= 4
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# define TAG_ATTRIBUTE_EXPORT __attribute__((visibility("default")))
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# define TAG_ATTRIBUTE_IMPORT __attribute__((visibility("default")))
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# define TAG_ATTRIBUTE_HIDDEN __attribute__((visibility("hidden")))
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#else
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# define TAG_ATTRIBUTE_EXPORT
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# define TAG_ATTRIBUTE_IMPORT
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# define TAG_ATTRIBUTE_HIDDEN
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#endif
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#if TAG_IS_SHARED
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# if TAG_IS_BUILDING
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# define TAG_PUBLIC TAG_ATTRIBUTE_EXPORT
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# else
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# define TAG_PUBLIC TAG_ATTRIBUTE_IMPORT
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# endif
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# define TAG_HIDDEN TAG_ATTRIBUTE_HIDDEN
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#else
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# define TAG_PUBLIC
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# define TAG_HIDDEN
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#endif
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#define TAG_STATIC static
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/* Extern "C" Guard */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Function Prototypes */
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TAG_PUBLIC int run_tests(void);
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/* End Extern "C" and Include Guard */
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#ifdef __cplusplus
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}
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#endif
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#endif
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