dlfcn-win32/src, branch variousimprovements2025A mirror of https://github.com/dlfcn-win32/dlfcn-win32.git
https://git.lua4.win/dlfcn-win32/atom?h=variousimprovements20252025-04-28T12:49:51+00:00Replace 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:sha1:34238cbb5aabda6f1d9a605cc6ef06a1d831bd25Fix C++ compile error C2065: '_ReturnAddress' : undeclared identifier2025-04-28T12:49:51+00:00Pali Rohárpali.rohar@gmail.com2024-03-29T17:00:32+00:00urn:sha1:e3568d86334b67111d4a0458ad46abbb82f53f22
It follows compile warning C4164: '_ReturnAddress' : intrinsic function not declared
Declaration can be included also via intrin.h header file.
Fix C++ compile error C2065: '_alloca' : undeclared identifier2025-04-28T12:49:51+00:00Pali Rohárpali.rohar@gmail.com2024-03-29T15:37:24+00:00urn:sha1:94faff301f529c72a52aa564f8e6829120133d12
When compiling in C++ mode, it is required to have C declaration for
_alloca. Declaration can be included also via malloc.h header file.
Fix gcc compile errors in C++ mode2025-04-28T12:49:51+00:00Pali Rohárpali.rohar@gmail.com2024-03-29T15:00:18+00:00urn:sha1:4fd808d661d88a2ab4ae1dc768f2c8ff0841c8a1
Add missing casts which are required in C++.
Fix is_valid_address() function2025-04-28T12:49:51+00:00Pali Rohárpali.rohar@gmail.com2024-02-26T21:03:26+00:00urn:sha1:9a2d78ac8768d5623107dc49c091e186354b6efb
Returned structure is valid only if the function return value is same as
the size of the structure. So check for the correct size, not just for the
non-zero size.
"AllocationProtect" member contains the initial protection, valid at the
time when VirtualAlloc() was called. "Protect" member contains the current
protection of the requested address, valid at the time when VirtualQuery()
was called. So is_valid_address() function has to check "Protect" member,
not the "AllocationProtect".
If "State" member is MEM_FREE or MEM_RESERVE then "Protect" member is
undefined. So check "State" member before "Protect" member.