mirror of
https://git.gnunet.org/libmicrohttpd.git
synced 2026-09-25 04:09:31 +03:00
autoinit_funcs.h: updated to use (semi-)official documented sections
This commit is contained in:
Evgeny Grin (Karlson2k)
@@ -67,7 +67,7 @@
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* Current version of the header in packed BCD form.
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* 0x01093001 = 1.9.30-1.
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*/
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#define AUTOINIT_FUNCS_VERSION 0x01000700
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#define AUTOINIT_FUNCS_VERSION 0x01000800
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#if defined(__GNUC__) || defined(__clang__)
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/* if possible - check for supported attribute */
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@@ -112,10 +112,8 @@
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#define _INSTRMACRO(a) #a
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#define _STRMACRO(a) _INSTRMACRO (a)
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#if ! defined(_USRDLL) || defined(AUTOINIT_FUNCS_DECLARE_STATIC_REG)
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/* required for atexit() */
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#include <stdlib.h>
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#if ! defined(_USRDLL) || defined(AUTOINIT_FUNCS_DECLARE_STATIC_REG) \
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|| defined(AUTOINIT_FUNCS_FORCE_STATIC_REG)
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/* Use "C" linkage for variable to simplify variable decoration */
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#ifdef __cplusplus
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@@ -146,77 +144,116 @@
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W32_VARDECORPREFIXSTR _STRMACRO (W32_INITHELPERVARNAME (f))
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/* Declare section (segment), put variable pointing to init function to chosen segment,
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force linker to include variable to avoid omitting by optimizer */
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/* Initialization function must be declared as
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int __cdecl FuncName(void) */
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/* Return value is ignored for C++ initializers */
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/* For C initializers: startup process is aborted if initializer return non-zero */
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#define W32_FPTR_IN_SEG(S,F) \
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force linker to always include variable to avoid omitting by optimiser */
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/* Initialisation function must be declared as
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void __cdecl FuncName(void)
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/* "extern" with initialisation value means that variable is declared AND defined. */
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#define W32_VFPTR_IN_SEG(S,F) \
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__pragma (section (S,long,read)) \
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__pragma (comment (linker, "/INCLUDE:" W32_INITHELPERVARNAMEDECORSTR (F))) \
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W32_INITVARDECL __declspec(allocate (S))void \
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(__cdecl * W32_INITHELPERVARNAME (F))(void) = &F
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/* Sections (segments) for pointers to initialisers/deinitialisers */
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/* Semi-officially suggested section for early initialisers (called before
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C++ objects initialisers), "void" return type */
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#define W32_SEG_INIT_EARLY ".CRT$XCT"
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/* Semi-officially suggested section for late initialisers (called after
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C++ objects initialisers), "void" return type */
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#define W32_SEG_INIT_LATE ".CRT$XCV"
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/* Unsafe sections (segments) for pointers to initialisers/deinitialisers */
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/* C++ lib initialisers, "void" return type (reserved by the system!) */
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#define W32_SEG_INIT_CXX_LIB ".CRT$XCL"
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/* C++ user initialisers, "void" return type (reserved by the system!) */
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#define W32_SEG_INIT_CXX_USER ".CRT$XCU"
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/* Declare section (segment), put variable pointing to init function to chosen segment,
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force linker to always include variable to avoid omitting by optimiser */
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/* Initialisation function must be declared as
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int __cdecl FuncName(void)
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/* Startup process is aborted if initialiser returns non-zero */
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/* "extern" with initialisation value means that variable is declared AND defined. */
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#define W32_IFPTR_IN_SEG(S,F) \
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__pragma (section (S,long,read)) \
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__pragma (comment (linker, "/INCLUDE:" W32_INITHELPERVARNAMEDECORSTR (F))) \
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W32_INITVARDECL __declspec(allocate (S))int \
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(__cdecl * W32_INITHELPERVARNAME (F))(void) = &F
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/* Section (segment) names for pointers to initializers */
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#define W32_SEG_INIT_C_USER ".CRT$XCU"
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#define W32_SEG_INIT_C_LIB ".CRT$XCL"
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#define W32_SEG_INIT_CXX_USER ".CRT$XIU"
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#define W32_SEG_INIT_CXX_LIB ".CRT$XIL"
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/* Unsafe sections (segments) for pointers to initialisers with
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"int" return type */
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/* Declare macro for different initializers sections */
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/* Macro can be used several times to register several initializers */
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/* Once function is registered as initializer, it will be called automatically
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/* C lib initialisers, "int" return type (reserved by the system!).
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These initialisers are called before others. */
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#define W32_SEG_INIT_C_LIB ".CRT$XIL"
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/* C user initialisers, "int" return type (reserved by the system!).
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These initialisers are called before others. */
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#define W32_SEG_INIT_C_USER ".CRT$XIU"
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/* Declare macro for different initialisers sections */
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/* Macro can be used several times to register several initialisers */
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/* Once function is registered as initialiser, it will be called automatically
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during application startup */
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/* "lib" initializers are called before "user" initializers */
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/* "C" initializers are called before "C++" initializers */
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#define W32_REG_INIT_C_USER(F) W32_FPTR_IN_SEG (W32_SEG_INIT_C_USER,F)
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#define W32_REG_INIT_C_LIB(F) W32_FPTR_IN_SEG (W32_SEG_INIT_C_LIB,F)
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#define W32_REG_INIT_EARLY(F) W32_VFPTR_IN_SEG (W32_SEG_INIT_EARLY,F)
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#define W32_REG_INIT_LATE(F) W32_VFPTR_IN_SEG (W32_SEG_INIT_LATE,F)
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/* Not recommended / unsafe */
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/* "lib" initialisers are called before "user" initialisers */
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/* "C" initialisers are called before "C++" initialisers */
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#define W32_REG_INIT_C_USER(F) W32_FPTR_IN_SEG (W32_SEG_INIT_C_USER,F)
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#define W32_REG_INIT_C_LIB(F) W32_FPTR_IN_SEG (W32_SEG_INIT_C_LIB,F)
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#define W32_REG_INIT_CXX_USER(F) W32_FPTR_IN_SEG (W32_SEG_INIT_CXX_USER,F)
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#define W32_REG_INIT_CXX_LIB(F) W32_FPTR_IN_SEG (W32_SEG_INIT_CXX_LIB,F)
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#define W32_REG_INIT_CXX_LIB(F) W32_FPTR_IN_SEG (W32_SEG_INIT_CXX_LIB,F)
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/* Choose main register macro based on language and program type */
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/* Assuming that _LIB or _USRDLL is defined for static or DLL-library */
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/* Macro can be used several times to register several initializers */
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/* Once function is registered as initializer, it will be called automatically
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during application startup */
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/* Define AUTOINIT_FUNCS_FORCE_USER_LVL_INIT to register initializers
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at user level even if building library */
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#ifdef __cplusplus
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#if ((defined(_LIB) && ! defined(_CONSOLE)) || defined(_USRDLL)) && \
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! defined(AUTOINIT_FUNCS_FORCE_USER_LVL_INIT)
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#define W32_REGISTER_INIT(F) W32_REG_INIT_CXX_LIB (F)
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#else /* ! _LIB && ! _DLL */
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#define W32_REGISTER_INIT(F) W32_REG_INIT_CXX_USER (F)
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#endif /* ! _LIB && ! _DLL */
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#else /* !__cplusplus*/
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#if ((defined(_LIB) && ! defined(_CONSOLE)) || defined(_USRDLL)) && \
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! defined(AUTOINIT_FUNCS_FORCE_USER_LVL_INIT)
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#define W32_REGISTER_INIT(F) W32_REG_INIT_C_LIB (F)
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#else /* ! _LIB && ! _DLL */
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#define W32_REGISTER_INIT(F) W32_REG_INIT_C_USER (F)
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#endif /* ! _LIB && ! _DLL */
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#endif /* !__cplusplus*/
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/* Define AUTOINIT_FUNCS_FORCE_EARLY_INIT to force register as early
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initialiser */
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/* Define AUTOINIT_FUNCS_FORCE_LATE_INIT to force register as late
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initialiser */
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/* By default C++ static or DLL-library code and any C code and will be
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registered as early initialiser, while C++ non-library code will be
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registered as late initialiser */
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#if (! defined(__cplusplus) || \
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((defined(_LIB) && ! defined(_CONSOLE)) || defined(_USRDLL)) || \
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defined(AUTOINIT_FUNCS_FORCE_EARLY_INIT)) && \
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! defined(AUTOINIT_FUNCS_FORCE_LATE_INIT)
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#define W32_REGISTER_INIT(F) W32_REG_INIT_EARLY(F)
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#else
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#define W32_REGISTER_INIT(F) W32_REG_INIT_LATE(F)
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#endif
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#else /* _USRDLL */
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#endif /* ! _USRDLL || ! AUTOINIT_FUNCS_DECLARE_STATIC_REG
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|| AUTOINIT_FUNCS_FORCE_STATIC_REG */
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#if ! defined(_USRDLL) || defined(AUTOINIT_FUNCS_FORCE_STATIC_REG)
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#include <stdlib.h> /* required for atexit() */
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#define W32_SET_INIT_AND_DEINIT(FI,FD) \
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void __cdecl _W32_init_helper_ ## FI (void); \
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void __cdecl _W32_deinit_helper_ ## FD (void); \
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void __cdecl _W32_init_helper_ ## FI (void) \
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{ (void) (FI) (); atexit (_W32_deinit_helper_ ## FD); } \
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void __cdecl _W32_deinit_helper_ ## FD (void) \
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{ (void) (FD) (); } \
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W32_REGISTER_INIT (_W32_init_helper_ ## FI)
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#else /* _USRDLL */
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN 1
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#endif /* WIN32_LEAN_AND_MEAN */
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/* Required for DllMain */
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#include <Windows.h>
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#endif /* _USRDLL */
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#if ! defined(_USRDLL) || defined(AUTOINIT_FUNCS_FORCE_STATIC_REG)
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#define W32_SET_INIT_AND_DEINIT(FI,FD) \
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int __cdecl _W32_init_helper_ ## FI (void); \
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void __cdecl _W32_deinit_helper_ ## FD (void); \
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void __cdecl _W32_deinit_helper_ ## FD (void) \
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{ (void) (FD) (); } \
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int __cdecl _W32_init_helper_ ## FI (void) \
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{ (void) (FI) (); atexit (_W32_deinit_helper_ ## FD); return 0; } \
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W32_REGISTER_INIT (_W32_init_helper_ ## FI)
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#else /* _USRDLL */
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#include <Windows.h> /* Required for DllMain */
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/* If DllMain is already present in code, define AUTOINIT_FUNCS_CALL_USR_DLLMAIN
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and rename DllMain to usr_DllMain */
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