bsnes/libco/settings.h

105 lines
3.9 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