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Try LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR | LOAD_LIBRARY_SEARCH_SYSTEM32 | LOAD_LIBRARY_SEARCH_USER_DIRS for DLL loading on Windows #47775

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Try LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR | LOAD_LIBRARY_SEARCH_SYSTEM32 | LOAD_LIBRARY_SEARCH_USER_DIRS for DLL loading on Windows #47775

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9ac715f
Add LOAD_LIBRARY_SEARCH_USER_DIRS for DLL loading
mkitti Dec 2, 2022
ce74cc4
Eliminate whitespace in comment
mkitti Dec 2, 2022
eace148
Update src/dlload.c via vtjnash review
mkitti Dec 13, 2022
ec5bc96
Make code compile
mkitti Jan 5, 2023
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12 changes: 12 additions & 0 deletions src/dlload.c
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Original file line number Diff line number Diff line change
Expand Up @@ -161,6 +161,18 @@ JL_DLLEXPORT void *jl_dlopen(const char *filename, unsigned flags) JL_NOTSAFEPOI
WCHAR *wfilename = (WCHAR*)alloca(len * sizeof(WCHAR));
if (!MultiByteToWideChar(CP_UTF8, 0, filename, -1, wfilename, len)) return NULL;
HANDLE lib = LoadLibraryExW(wfilename, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
if (!lib)
{
/* If loading with LOAD_WITH_ALTERED_SEARCH_PATH fails,
search user directories added with `AddDllDirectory`.
In Julia on Windows, user directories can be added to the DLL search path as follows.
`library::String = pwd()`
`@ccall "kernel32".AddDllDirectory(library::Cwstring)::Ptr{Nothing}`
https://learn.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-adddlldirectory
Consider `LOAD_LIBRARY_SEARCH_DEFAULT_DIRS` or
`LOAD_LIBRARY_DEFAULT_DIRS | LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR` for use below. */
lib = LoadLibraryExW(wfilename, NULL, LOAD_LIBRARY_SEARCH_USER_DIRS);
}
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if (lib)
needsSymRefreshModuleList = 1;
return lib;
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