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61 lines
1.1 KiB
61 lines
1.1 KiB
#include <stdio.h> |
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#include <assert.h> |
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#ifdef _WIN32 |
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#include <windows.h> |
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#else |
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#include <dlfcn.h> |
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#endif |
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#if defined _WIN32 || defined __CYGWIN__ |
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#define DLL_PUBLIC __declspec(dllexport) |
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#else |
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#if defined __GNUC__ |
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#define DLL_PUBLIC __attribute__ ((visibility("default"))) |
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#else |
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#pragma message ("Compiler does not support symbol visibility.") |
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#define DLL_PUBLIC |
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#endif |
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#endif |
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typedef int (*fptr) (void); |
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int DLL_PUBLIC |
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func_from_executable(void) |
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{ |
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return 42; |
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} |
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int main(int argc, char **argv) |
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{ |
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int expected, actual; |
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fptr importedfunc; |
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if (argc=0) {}; // noop |
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#ifdef _WIN32 |
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HMODULE h = LoadLibraryA(argv[1]); |
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#else |
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void *h = dlopen(argv[1], RTLD_NOW); |
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#endif |
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assert(h != NULL); |
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#ifdef _WIN32 |
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importedfunc = (fptr) GetProcAddress (h, "func"); |
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#else |
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importedfunc = (fptr) dlsym(h, "func"); |
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#endif |
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assert(importedfunc != NULL); |
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assert(importedfunc != func_from_executable); |
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actual = (*importedfunc)(); |
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expected = func_from_executable(); |
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assert(actual == expected); |
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#ifdef _WIN32 |
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FreeLibrary(h); |
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#else |
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dlclose(h); |
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#endif |
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return 0; |
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}
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