bsnes/settings.h

105 lines
3.8 KiB
C

#if defined(LIBCO_C)
/*[amd64, arm, ppc, x86]:
by default, co_swap_function is marked as a text (code) section
if not supported, uncomment the below line to use mprotect instead */
/* #define LIBCO_MPROTECT */
/*[amd64]:
Win64 only: provides a substantial speed-up, but will thrash XMM regs
do not use this unless you are certain your application won't use SSE */
/* #define LIBCO_NO_SSE */
#if !defined(thread_local) // User can override thread_local for obscure compilers
#if !defined(LIBCO_MP) // Running in single-threaded environment
#define thread_local
#else // Running in multi-threaded environment
#if defined(__STDC_VERSION__) // Compiling as C Language
#if defined(_MSC_VER) // Don't rely on MSVC's C11 support
#define thread_local __declspec(thread)
#elif __STDC_VERSION__ < 201112L // If we are on C90/99
#if defined(__clang__) || defined(__GNUC__) // Clang and GCC
#define thread_local __thread
#else // Otherwise, we ignore the directive (unless user provides their own)
#define thread_local
#endif
#else // C11 and newer define thread_local in threads.h
#include <threads.h>
#endif
#elif defined(__cplusplus) // Compiling as C++ Language
#if __cplusplus < 201103L // thread_local is a C++11 feature
#if defined(_MSC_VER)
#define thread_local __declspec(thread)
#elif defined(__clang__) || defined(__GNUC__)
#define thread_local __thread
#else // Otherwise, we ignore the directive (unless user provides their own)
#define thread_local
#endif
#else // In C++ >= 11, thread_local in a builtin keyword
// Don't do anything
#endif
#endif
#endif
#endif
/* In alignas(a), 'a' should be a power of two that is at least the type's
alignment and at most the implementation's alignment limit. This limit is
2**13 on MSVC. To be portable to MSVC through at least version 10.0,
'a' should be an integer constant, as MSVC does not support expressions
such as 1 << 3.
The following C11 requirements are NOT supported on MSVC:
- If 'a' is zero, alignas has no effect.
- alignas can be used multiple times; the strictest one wins.
- alignas (TYPE) is equivalent to alignas (alignof (TYPE)).
*/
#if !defined(alignas)
#if defined(__STDC_VERSION__) // C Language
#if defined(_MSC_VER) // Don't rely on MSVC's C11 support
#define alignas(bytes) __declspec(align(bytes))
#elif __STDC_VERSION__ >= 201112L // C11 and above
#include <stdalign.h>
#elif defined(__clang__) || defined(__GNUC__) // C90/99 on Clang/GCC
#define alignas(bytes) __attribute__ ((aligned (bytes)))
#else // Otherwise, we ignore the directive (user should provide their own)
#define alignas(bytes)
#endif
#elif defined(__cplusplus) // C++ Language
#if __cplusplus < 201103L
#if defined(_MSC_VER)
#define alignas(bytes) __declspec(align(bytes))
#elif defined(__clang__) || defined(__GNUC__) // C++98/03 on Clang/GCC
#define alignas(bytes) __attribute__ ((aligned (bytes)))
#else // Otherwise, we ignore the directive (unless user provides their own)
#define alignas(bytes)
#endif
#else // C++ >= 11 has alignas keyword
// Do nothing
#endif
#endif // = !defined(__STDC_VERSION__) && !defined(__cplusplus)
#endif
#if !defined(LIBCO_ASSERT)
#include <assert.h>
#define LIBCO_ASSERT assert
#endif
#if !defined(LIBCO_MALLOC) || !defined(LIBCO_FREE)
#include <stdlib.h>
#define LIBCO_MALLOC malloc
#define LIBCO_FREE free
#endif
#if defined(_MSC_VER)
#define section(name) __declspec(allocate("." #name))
#elif defined(__APPLE__)
#define section(name) __attribute__((section("__TEXT,__" #name)))
#else
#define section(name) __attribute__((section("." #name "#")))
#endif
/* if defined(LIBCO_C) */
#endif