janwas
4be0fe18a0
. major compat fixes for interoperation with wxw. . add crashlog_sender (modified version of debgrpt wxw sample). compiles but untested, will be changed heavily further improvements: . wposix no longer declares CRT functions. instead, use CRT headers.. but don't allow their (incorrect/non-POSIX) declarations to propagate to users. . split up win.cpp into wstartup, wutil, winit . extern "C" -> EXTERN_C . move sdl.* to lib/external_libraries and add png.h+zlib.h (fixes for and include of the library) This was SVN commit r5028.
105 lines
3.4 KiB
C
105 lines
3.4 KiB
C
#ifndef INCLUDED_COMPILER
|
|
#define INCLUDED_COMPILER
|
|
|
|
|
|
// pass "omit frame pointer" setting on to the compiler
|
|
#if MSC_VERSION
|
|
# if CONFIG_OMIT_FP
|
|
# pragma optimize("y", on)
|
|
# else
|
|
# pragma optimize("y", off)
|
|
# endif
|
|
#elif GCC_VERSION
|
|
// TODO
|
|
#endif
|
|
|
|
|
|
// try to define _W64, if not already done
|
|
// (this is useful for catching pointer size bugs)
|
|
#ifndef _W64
|
|
# if MSC_VERSION
|
|
# define _W64 __w64
|
|
# elif GCC_VERSION
|
|
# define _W64 __attribute__((mode (__pointer__)))
|
|
# else
|
|
# define _W64
|
|
# endif
|
|
#endif
|
|
|
|
|
|
// C99-like restrict (non-standard in C++, but widely supported in various forms).
|
|
//
|
|
// May be used on pointers. May also be used on member functions to indicate
|
|
// that 'this' is unaliased (e.g. "void C::m() RESTRICT { ... }").
|
|
// Must not be used on references - GCC supports that but VC doesn't.
|
|
//
|
|
// We call this "RESTRICT" to avoid conflicts with VC's __declspec(restrict),
|
|
// and because it's not really the same as C99's restrict.
|
|
//
|
|
// To be safe and satisfy the compilers' stated requirements: an object accessed
|
|
// by a restricted pointer must not be accessed by any other pointer within the
|
|
// lifetime of the restricted pointer, if the object is modified.
|
|
// To maximise the chance of optimisation, any pointers that could potentially
|
|
// alias with the restricted one should be marked as restricted too.
|
|
//
|
|
// It would probably be a good idea to write test cases for any code that uses
|
|
// this in an even very slightly unclear way, in case it causes obscure problems
|
|
// in a rare compiler due to differing semantics.
|
|
//
|
|
// .. we made g++ claim to support C99 by defining __STDC_VERSION__ in the
|
|
// makefiles, but that's wrong and it doesn't have the restrict keyword.
|
|
// use the extension __restrict__ instead.
|
|
#if GCC_VERSION
|
|
# define RESTRICT __restrict__
|
|
// .. already available in C99 as 'restrict'
|
|
#elif HAVE_C99
|
|
# define RESTRICT restrict
|
|
// .. VC8 provides __restrict
|
|
#elif MSC_VERSION >= 1400
|
|
# define RESTRICT __restrict
|
|
// .. ICC supports the keyword 'restrict' when run with the /Qrestrict option,
|
|
// but it always also supports __restrict__ or __restrict to be compatible
|
|
// with GCC/MSVC, so we'll use the underscored version. One of {GCC,MSC}_VERSION
|
|
// should have been defined in addition to ICC_VERSION, so we should be using
|
|
// one of the above cases (unless it's an old VS7.1-emulating ICC).
|
|
#elif ICC_VERSION
|
|
# error ICC_VERSION defined without either GCC_VERSION or an adequate MSC_VERSION
|
|
// .. unsupported; remove it from code
|
|
#else
|
|
# define RESTRICT
|
|
#endif
|
|
|
|
|
|
// C99 __func__
|
|
// .. already available; need do nothing
|
|
#if HAVE_C99
|
|
// .. VC supports something similar
|
|
#elif MSC_VERSION
|
|
# define __func__ __FUNCTION__
|
|
// .. unsupported; remove it from code
|
|
#else
|
|
# define __func__ "(unknown)"
|
|
#endif
|
|
|
|
|
|
// tell the compiler that the code at/following this macro invocation is
|
|
// unreachable. this can improve optimization and avoid warnings.
|
|
//
|
|
// this macro should not generate any fallback code; it is merely the
|
|
// compiler-specific backend for lib.h's UNREACHABLE.
|
|
// #define it to nothing if the compiler doesn't support such a hint.
|
|
#if MSC_VERSION
|
|
# define ASSUME_UNREACHABLE __assume(0)
|
|
#else
|
|
# define ASSUME_UNREACHABLE
|
|
#endif
|
|
|
|
// extern "C", but does the right thing in pure-C mode
|
|
#if defined(__cplusplus)
|
|
# define EXTERN_C extern "C"
|
|
#else
|
|
# define EXTERN_C extern
|
|
#endif
|
|
|
|
#endif // #ifndef INCLUDED_COMPILER
|