ref: 094fc8b15f98807833143e29f1f7d36a1ca4b28c
dir: /sys/src/cmd/python/Modules/expat/internal.h/
/* internal.h Internal definitions used by Expat. This is not needed to compile client code. The following calling convention macros are defined for frequently called functions: FASTCALL - Used for those internal functions that have a simple body and a low number of arguments and local variables. PTRCALL - Used for functions called though function pointers. PTRFASTCALL - Like PTRCALL, but for low number of arguments. inline - Used for selected internal functions for which inlining may improve performance on some platforms. Note: Use of these macros is based on judgement, not hard rules, and therefore subject to change. */ #if defined(__GNUC__) && defined(__i386__) /* We'll use this version by default only where we know it helps. regparm() generates warnings on Solaris boxes. See SF bug #692878. Instability reported with egcs on a RedHat Linux 7.3. Let's comment out: #define FASTCALL __attribute__((stdcall, regparm(3))) and let's try this: */ #define FASTCALL __attribute__((regparm(3))) #define PTRFASTCALL __attribute__((regparm(3))) #endif /* Using __fastcall seems to have an unexpected negative effect under MS VC++, especially for function pointers, so we won't use it for now on that platform. It may be reconsidered for a future release if it can be made more effective. Likely reason: __fastcall on Windows is like stdcall, therefore the compiler cannot perform stack optimizations for call clusters. */ /* Make sure all of these are defined if they aren't already. */ #ifndef FASTCALL #define FASTCALL #endif #ifndef PTRCALL #define PTRCALL #endif #ifndef PTRFASTCALL #define PTRFASTCALL #endif #ifndef XML_MIN_SIZE #if !defined(__cplusplus) && !defined(inline) #ifdef __GNUC__ #define inline __inline #endif /* __GNUC__ */ #endif #endif /* XML_MIN_SIZE */ #ifdef __cplusplus #define inline inline #else #ifndef inline #define inline #endif #endif