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| 1 | +/* internal.h |
| 2 | +
|
| 3 | + Internal definitions used by Expat. This is not needed to compile |
| 4 | + client code. |
| 5 | +
|
| 6 | + The following calling convention macros are defined for frequently |
| 7 | + called functions: |
| 8 | +
|
| 9 | + FASTCALL - Used for those internal functions that have a simple |
| 10 | + body and a low number of arguments and local variables. |
| 11 | +
|
| 12 | + PTRCALL - Used for functions called though function pointers. |
| 13 | +
|
| 14 | + PTRFASTCALL - Like PTRCALL, but for low number of arguments. |
| 15 | +
|
| 16 | + inline - Used for selected internal functions for which inlining |
| 17 | + may improve performance on some platforms. |
| 18 | +
|
| 19 | + Note: Use of these macros is based on judgement, not hard rules, |
| 20 | + and therefore subject to change. |
| 21 | +*/ |
| 22 | + |
| 23 | +#if defined(__GNUC__) |
| 24 | +/* Instability reported with egcs on a RedHat Linux 7.3. |
| 25 | + Let's comment it out: |
| 26 | + #define FASTCALL __attribute__((stdcall, regparm(3))) |
| 27 | + and let's try this: |
| 28 | +*/ |
| 29 | +#define FASTCALL __attribute__((regparm(3))) |
| 30 | +#define PTRCALL |
| 31 | +#define PTRFASTCALL __attribute__((regparm(3))) |
| 32 | + |
| 33 | +#elif defined(WIN32) |
| 34 | +/* Using __fastcall seems to have an unexpected negative effect under |
| 35 | + MS VC++, especially for function pointers, so we won't use it for |
| 36 | + now on that platform. It may be reconsidered for a future release |
| 37 | + if it can be made more effective. |
| 38 | + Likely reason: __fastcall on Windows is like stdcall, therefore |
| 39 | + the compiler cannot perform stack optimizations for call clusters. |
| 40 | +*/ |
| 41 | +#define FASTCALL |
| 42 | +#define PTRCALL |
| 43 | +#define PTRFASTCALL |
| 44 | + |
| 45 | +#endif |
| 46 | + |
| 47 | +#ifndef FASTCALL |
| 48 | +#define FASTCALL |
| 49 | +#endif |
| 50 | + |
| 51 | +#ifndef PTRCALL |
| 52 | +#define PTRCALL |
| 53 | +#endif |
| 54 | + |
| 55 | +#ifndef PTRFASTCALL |
| 56 | +#define PTRFASTCALL |
| 57 | +#endif |
| 58 | + |
| 59 | +#ifndef XML_MIN_SIZE |
| 60 | +#if !defined(__cplusplus) && !defined(inline) |
| 61 | +#ifdef __GNUC__ |
| 62 | +#define inline __inline |
| 63 | +#endif /* __GNUC__ */ |
| 64 | +#endif |
| 65 | +#endif /* XML_MIN_SIZE */ |
| 66 | + |
| 67 | +#ifdef __cplusplus |
| 68 | +#define inline inline |
| 69 | +#else |
| 70 | +#ifndef inline |
| 71 | +#define inline |
| 72 | +#endif |
| 73 | +#endif |
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