/*** *cruntime.h - definitions specific to the target operating system and * hardware * * Copyright (c) 1990-1993, Microsoft Corporation. All rights reserved. * *Purpose: * This header file contains widely used definitions specific to the * host operating system and hardware. It is included by every C source * and most every other header file. * [Internal] * *Revision History: * 02-27-90 GJF File created * 03-06-90 GJF Added register macros (REG1,...,etc.) * 04-11-90 GJF Set _CALLTYPE1 and _CALLTYPE4 to _stdcall. * 10-30-90 GJF Added macros defining variable args interface. * 10-31-90 GJF Added definition of _JBLEN (from setjmp.h). * 11-13-90 GJF Revised #ifdef-s, now use symbolic constants * representing target OS and target processor, with * #error directives for unsupported targets. Note the * general grouping of only OS-dependent definitions * followed by OS and processor dependent definitions. * 02-25-91 SRW Move _JBLEN definition back to setjmp.h [_WIN32_] * 04-09-91 PNT Added _MAC_ definitions * 05-09-91 GJF Restored _JBLEN definitions. Also fixed the macros * defining the target processor so both Stevewo's stuff * and mine would work. * 05-13-91 GJF Changed _CALLTYPE1 and _CALLTYPE4 to _cdecl for * Cruiser (_CRUISER_). * 08-28-91 JCR ANSI keywords * 11-01-91 GDP _JBLEN back to setjmp.h, stdarg macros back to stdarg.h * 03-30-92 DJM POSIX support. * 08-07-92 GJF Revised various macros. * 09-08-92 GJF Restored definition of _MIPS_ (temporarily). * 11-09-92 GJF Revised preprocessing conditionals for MIPS. * 01-09-93 SRW Remove usage of MIPS and ALPHA to conform to ANSI * Use _MIPS_ and _ALPHA_ instead. * 02-01-93 GJF Removed support for C6-386. * ****/ #ifndef _INC_CRUNTIME /* * Some CRT sources have code conditioned on _MIPS_. Continue to define * _MIPS_ when MIPS is defined until these sources are fixed. */ #if defined(MIPS) && !defined(_MIPS_) #define _MIPS_ #endif #if defined(_M_MRX000) || defined(_M_ALPHA) || defined(_M_PPC) #define UNALIGNED __unaligned #else #define UNALIGNED #endif /* * Conditional macro definition for function calling type and variable type * qualifiers. */ #if ( (_MSC_VER >= 800) && (_M_IX86 >= 300) ) /* * Definitions for MS C8-32 (386/486) compiler */ #define _CRTAPI1 __cdecl /* User-visible CRT function */ #define _CRTAPI2 __cdecl /* User-visible CRT function */ #define _CRTAPI3 __cdecl /* Internal CRT function */ #define _CRTVAR1 /* C global variable */ #else /* * Other compilers (e.g., MIPS) */ #define _CRTAPI1 #define _CRTAPI2 #define _CRTAPI3 #define _CRTVAR1 #endif /* * Old function calling type and variable type qualifier macros */ #define _CALLTYPE1 _CRTAPI1 #define _CALLTYPE2 _CRTAPI2 #define _CALLTYPE4 _CRTAPI3 #define _VARTYPE1 _CRTVAR1 #ifdef _CRUISER_ /* * DEFINITIONS FOR CRUISER (AKA OS/2 2.0). */ #define _CALLTYPE3 __syscall /* OS API functions */ /* * Macros for register variable declarations */ #define REG1 register #define REG2 register #define REG3 register #define REG4 #define REG5 #define REG6 #define REG7 #define REG8 #define REG9 /* * Macros for varargs support */ #define _VA_LIST_T char * #else /* ndef _CRUISER_ */ #ifdef _WIN32_ /* * DEFINITIONS FOR WIN32 */ #ifdef _ALPHA_ #define _VA_LIST_T \ struct { \ char *a0; /* pointer to first homed integer argument */ \ int offset; /* byte offset of next parameter */ \ } #else #define _VA_LIST_T char * #endif #if defined(_M_IX86) /* * 386/486 */ #define REG1 register #define REG2 register #define REG3 register #define REG4 #define REG5 #define REG6 #define REG7 #define REG8 #define REG9 #elif defined(_M_MRX000) || defined(_M_ALPHA) || defined(_M_PPC) /* * MIPS or ALPHA */ #define REG1 register #define REG2 register #define REG3 register #define REG4 register #define REG5 register #define REG6 register #define REG7 register #define REG8 register #define REG9 register #else #error ERROR - SUPPORT FOR WIN32 NT-X86, NT-MIPS, NT-ALPHA, AND NT-PPC ONLY #endif #else /* ndef _WIN32_ */ #ifdef _POSIX_ /* * DEFINITIONS FOR POSIX */ #ifdef _ALPHA_ #define _VA_LIST_T \ struct { \ char *a0; /* pointer to first homed integer argument */ \ int offset; /* byte offset of next parameter */ \ } #else #define _VA_LIST_T char * #define _INTSIZEOF(n) ( (sizeof(n) + sizeof(int) - 1) & ~(sizeof(int) - 1) ) #define _VA_START(ap,v) ap = (va_list)&v + _INTSIZEOF(v) #define _VA_ARG(ap,t) ( *(t *)((ap += _INTSIZEOF(t)) - _INTSIZEOF(t)) ) #define _VA_END(ap) ap = (va_list)0 #endif #if defined(_M_IX86) /* * 386/486 */ #define REG1 register #define REG2 register #define REG3 register #define REG4 #define REG5 #define REG6 #define REG7 #define REG8 #define REG9 #elif defined(_M_MRX000) || defined(_M_ALPHA) || defined(_M_PPC) /* * MIPS/Alpha/PPC */ #define REG1 register #define REG2 register #define REG3 register #define REG4 register #define REG5 register #define REG6 register #define REG7 register #define REG8 register #define REG9 register #else #error ERROR - SUPPORT FOR POSIX NT-X86, NT-MIPS, NT-ALPHA, AND NT_PPC ONLY #endif #else /* ndef _POSIX_ */ #ifdef _MAC_ /* * DEFINITIONS FOR MAC. */ /* * Macros for register variable declarations */ #define REG1 #define REG2 #define REG3 #define REG4 #define REG5 #define REG6 #define REG7 #define REG8 #define REG9 /* * Macros for varargs support */ #define _VA_LIST_T char * #else /* ndef _MAC_ */ #error ERROR - ONLY CRUISER, WIN32, OR MAC TARGET SUPPORTED! #endif /* _MAC_ */ #endif /* _WIN32_ */ #endif /* _POSIX_ */ #endif /* _CRUISER_ */ #define _INC_CRUNTIME #endif /* _INC_CRUNTIME */