src/dlfcn.c


Log

Author Commit Date CI Message
Pali Rohár 1beb65cd 2023-05-21T12:11:20 Fix compilation with older SDK Do not use SIZE_T which is not defined in older SDK. There is only size_t type, so use it instead. Do not use IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR which is not defined in older SDK. Use IMAGE_NUMBEROF_DIRECTORY_ENTRIES macro for checking if directory index is valid. In all SDKs is DataDirectory[] array size defined from IMAGE_NUMBEROF_DIRECTORY_ENTRIES macro. Cast members in IMAGE_EXPORT_DIRECTORY and IMAGE_DIRECTORY_ENTRY_IMPORT to DWORD as in older SDK they are defined as PDWORD and compiler throws error 'cannot add two pointers'.
GH Cao d78c6266 2022-12-08T21:37:10 Add Windows ARM64 support
Pali Rohár e34fb598 2022-03-11T22:50:30 Replace magic numbers by sdk macros in get_image_section()
Pali Rohár 318030d5 2021-12-21T01:09:09 Prefer usage of thread-safe function SetThreadErrorMode() instead of process-global function SetErrorMode() Use GetProcAddress() wrapper as SetThreadErrorMode() is not available on older Windows versions.
Pali Rohár fe1e4751 2021-12-21T01:07:19 Try to avoid compile warning: cast between incompatible function types from ‘FARPROC’ warning: cast between incompatible function types from ‘FARPROC’ {aka ‘long long int (*)()’} to ‘BOOL (*)(DWORD, const CHAR *, struct HINSTANCE__ **)’ {aka ‘int (*)(long unsigned int, const char *, struct HINSTANCE__ **)’} [-Wcast-function-type]
Michel Zou 36b92340 2021-03-15T11:21:09 dladdr: const void *addr on unix the addr argument seems to be const fix that for consistency
Pali Rohár 9e40646c 2021-02-03T21:01:24 Fix noinline for older compiler versions (e.g. Visual Studio 6.0) Visual Studio 6.0 does not support __declspec(noinline) and throw error. Add checks for compilers which support noinline to prevent compile errors.
Pali Rohár 7da10545 2021-02-03T21:00:56 Define ULONG_PTR for older SDK If compiling with _WIN32_WINNT target prior 0x0500 then SDK does not define ULONG_PTR type. Such systems are only 32bit so define it explicitly to 32bit type ULONG.
Pali Rohár d1a0d28f 2021-02-03T21:00:28 Fix MSVC 14.00 compile warning: warning C4244: '=' : conversion from 'ULONG_PTR' to 'char', possible loss of data
Pali Rohár 06fea3fe 2021-02-03T20:59:58 Add helper function MyGetModuleHandleFromAddress() This function implements calling GetModuleHandleExA() with correct flags to retrieve hModule from passed address. To allow compilation also with older compilers and environments (like WDK) with any _WIN32_WINNT value, retrieve pointer to this function via GetProcAddress(). And as a fallback implementation use old code via VirtualQuery() which was there prior commit 8ec5ffef2eca.
Pali Rohár 0e9d85a9 2021-02-03T20:59:18 Fix helper function MyEnumProcessModules() Call SetErrorMode(SEM_FAILCRITICALERRORS) prior opening Psapi.dll library to avoid GUI error messages. Close Psapi.dll library via FreeLibrary() if symbol was not retrieved to prevent possible memory leaks. Try to get K32EnumProcessModules symbol from Kernel32.dll library as it is preferred way how to call EnumProcessModules() on Windows 7 and newer versions. If retrieving EnumProcessModules symbol failed with both methods then do not try it again on next MyEnumProcessModules() function call.
Pali Rohár c172ee21 2021-02-03T20:58:39 Avoid calling SetLastError() and GetLastError() internally There is no need for propagating internal errors via SetLastError() and GetLastError() calls. Just use additional argument for save_err_str() function. Also dlfcn API is POSIX and does not use GetLastError().
Pali Rohár b89f8932 2021-02-03T20:58:15 Move hCurrentProc variable to scope where is used
Pali Rohár f7e7a5d7 2021-02-03T20:57:40 Fix some style issues
Pali Rohár b46da884 2021-01-29T14:00:30 Remove duplicate checks for NULL pointers is_valid_address() already rejects NULL addresses, so there is no need to check address for NULL.
Pali Rohár e53ecd53 2021-01-29T13:59:41 Remove code for finding symbol name in import table It is not required as import table can use only symbols which are exported and therefore are in export table. So if symbol is not found in export table it cannot be in import table.
Pali Rohár 86a41b92 2021-01-25T23:27:22 Function dladdr() now retrieve symbol name and symbol address from both export and import tables dladdr tests for Windows now should always pass like on other systems.
Ralf Habacker 0ea2334d 2020-12-11T14:32:52 Add function dladdr() and associated test application test-dladdr
Pali Rohár d230e1ca 2020-12-13T14:48:44 Rewrite function save_err_ptr_str() to not use sprintf() sprintf() is marked by MSVC as unsafe and suppressing compile warning does not work. It is still generated on AppVeyor. So rewrite code for converting pointer number to string via open coded for-loop and do not use unsafe sprintf() function anymore. New code correctly handles both 32bit and 64bit variants and does not use any #ifdef _MSC_VER anymore.
Ralf Habacker f0ac8495 2020-08-25T23:34:19 Move cmake targets into sub directories