dlfcn-win32/src, branch fixpatchesA mirror of https://github.com/dlfcn-win32/dlfcn-win32.git
https://git.lua4.win/dlfcn-win32/atom?h=fixpatches2025-05-03T10:30:48+00:00For non-debug DLL builds avoid linking to CRT library as it is not needed2025-05-03T10:30:48+00:00Pali Rohárpali.rohar@gmail.com2024-11-21T00:52:34+00:00urn:sha1:529de2d3d04a41f869dd4803404cd763b9e8f72c
Now when dlfcn.c does not call any function from CRT library, it is not
needed to link dlfcn library with some specific CRT library (e.g.
crtdll.dll, msvcrt.dll, msvcr120.dll or api-ms-win-crt-*.dll) and therefore
bound the dlfcn DLL library to specific Visual C++ runtime version.
This makes libdl.dll DLL library CRT-neutral and therefore can be used or
linked into any EXE application using any CRT library of any version,
without any Visual C++ runtime version conflict.
Ensure that dlfcn-win32 library compiled by msvc links LIBC library when calling _alloca2025-05-03T10:30:48+00:00Pali Rohárpali.rohar@gmail.com2024-11-22T22:46:05+00:00urn:sha1:77152633a5d3d151107ce9a7b876747bce83c8d3
Usage of _alloca emits __alloca_probe call by msvc compiler which is
present in msvc LIBC library. So when _alloca is used then force linker to
include LIBC library. Correct name of the LIBC library is determined by
_DLL, _MT and _DEBUG preprocessor macros.
Ensure that dlfcn-win32 library compiled by msvc always links to kernel32.dll2025-05-03T10:30:48+00:00Pali Rohárpali.rohar@gmail.com2024-11-21T00:53:24+00:00urn:sha1:664f8812d5ab4757bc31c7542276db6f5eb58189Do not define MyAlloc and MyFree as functions2025-05-03T10:30:48+00:00Pali Rohárpali.rohar@gmail.com2024-11-23T17:52:03+00:00urn:sha1:86224c8c4a7eaeeaa8b52ac3d6ba4260804b131f
It breaks memory allocation file name and line number tracking.
Also it breaks detection of the source of memory leaks printed by the
_CrtDumpMemoryLeaks() function.
Replace CRT's strlen() and memcpy() by open coded variants2025-04-28T12:49:51+00:00Pali Rohárpali.rohar@gmail.com2024-03-29T14:52:29+00:00urn:sha1:3e9bfa7d9dd0e8f4a846d45261df1dcb838b60d8
After this change there is no usage of of CRT library function. This allows
to build CRT-neutral variant of libdl.dll library, which can be used in any
application.
Replace CRT's malloc() and free() by WinAPI's LocalAlloc() and LocalFree() in release mode2025-04-28T12:49:51+00:00Pali Rohárpali.rohar@gmail.com2024-03-22T00:53:18+00:00urn:sha1:f87cc876be9b450d3491a174b8c673d918ec5daf
In debug mode is still used malloc() and free() for as part of memory leak
testing done by _CRTDBG_MAP_ALLOC and _CrtDumpMemoryLeaks() in test.c.
This change allows to wrap CRT's malloc() via dlsym's RTLD_NEXT.
See #112
Fix includes2025-04-28T12:49:51+00:00Pali Rohárpali.rohar@gmail.com2024-03-22T00:35:52+00:00urn:sha1:8c28ff3b85f87ae9cb645fed9ec2d146b3059e7a
* Remove unused include stdio.h
* Add used include string.h
* Add reason comments for includes
Do not cast between function pointer and data pointer when not required2025-04-28T12:49:51+00:00Pali Rohárpali.rohar@gmail.com2024-09-16T21:59:06+00:00urn:sha1:e0520e25643b51e69aa78e5944cdf2853323b06a
This is undefined in C and also C++. Both gcc and msvc allows to cast
between two incompatible function pointers without triggering warnings
transitionally via void(*)(void) function pointer. Replace transitional
LPVOID cast by void(*)(void) cast.
Fix compile warning: comparison of integer expressions of different signedness: ‘int’ and ‘DWORD’ {aka ‘long unsigned int’}2025-04-28T12:49:51+00:00Pali Rohárpali.rohar@gmail.com2024-03-29T14:54:23+00:00urn:sha1:5a4d701248f88fb1a6f66932c58d73e74dfadbd9Fix compile warning C4244: '=' : conversion from 'int' to 'char', possible loss of data2025-04-28T12:49:51+00:00Pali Rohárpali.rohar@gmail.com2024-03-29T16:05:06+00:00urn:sha1:34238cbb5aabda6f1d9a605cc6ef06a1d831bd25