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@ -484,7 +484,7 @@ struct signalfd_siginfo |
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/* |
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* libecb - http://software.schmorp.de/pkg/libecb |
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* |
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* Copyright (©) 2009-2013 Marc Alexander Lehmann <libecb@schmorp.de> |
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* Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de> |
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* Copyright (©) 2011 Emanuele Giaquinta |
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* All rights reserved. |
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* |
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@ -572,12 +572,20 @@ struct signalfd_siginfo |
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#endif |
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#endif |
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#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
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#define ECB_C99 (__STDC_VERSION__ >= 199901L) |
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#define ECB_C11 (__STDC_VERSION__ >= 201112L) |
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#define ECB_CPP (__cplusplus+0) |
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#define ECB_CPP11 (__cplusplus >= 201103L) |
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#if ECB_CPP |
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#define ECB_C 0 |
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#define ECB_STDC_VERSION 0 |
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#else |
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#define ECB_C 1 |
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#define ECB_STDC_VERSION __STDC_VERSION__ |
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#endif |
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#define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
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#define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
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#if ECB_CPP |
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#define ECB_EXTERN_C extern "C" |
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#define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
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@ -619,6 +627,8 @@ struct signalfd_siginfo |
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#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
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|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
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#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
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#elif __aarch64__ |
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#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
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#elif (__sparc || __sparc__) && !__sparcv8 |
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#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
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#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
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@ -650,6 +660,8 @@ struct signalfd_siginfo |
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#if ECB_GCC_VERSION(4,7) |
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/* see comment below (stdatomic.h) about the C11 memory model. */ |
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#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
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#define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
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#define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
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/* The __has_feature syntax from clang is so misdesigned that we cannot use it |
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* without risking compile time errors with other compilers. We *could* |
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@ -658,6 +670,8 @@ struct signalfd_siginfo |
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* #elif defined __clang && __has_feature (cxx_atomic) |
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* // see comment below (stdatomic.h) about the C11 memory model. |
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* #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
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* #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
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* #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
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*/ |
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#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
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@ -697,6 +711,8 @@ struct signalfd_siginfo |
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/* for most usages, or gcc and clang have a bug */ |
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/* I *currently* lean towards the latter, and inefficiently implement */ |
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/* all three of ecb's fences as a seq_cst fence */ |
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/* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
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/* for all __atomic_thread_fence's except seq_cst */ |
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#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
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#endif |
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#endif |
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@ -763,6 +779,11 @@ typedef int ecb_bool; |
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#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
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#else |
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#define ecb_attribute(attrlist) |
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/* possible C11 impl for integral types |
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typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
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#define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
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#define ecb_is_constant(expr) 0 |
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#define ecb_expect(expr,value) (expr) |
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#define ecb_prefetch(addr,rw,locality) |
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@ -1067,7 +1088,8 @@ ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == |
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|| defined __m68k__ \ |
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|| defined __m88k__ \ |
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|| defined __sh__ \ |
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|| defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
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|| defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ |
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|| (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) |
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#define ECB_STDFP 1 |
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#include <string.h> /* for memcpy */ |
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#else |
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