| 1 | //
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| 2 | // Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
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| 3 | //
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| 4 | // The contents of this file are covered under the licence agreement in the
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| 5 | // file "LICENCE" distributed with Cforall.
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| 6 | //
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| 7 | // defs.hfa -- Commen macros, functions and typedefs
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| 8 | // Most files depend on them and they are always useful to have.
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| 9 | //
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| 10 | // *** Must not contain code specific to libcfathread ***
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| 11 | //
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| 12 | // Author : Thierry Delisle
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| 13 | // Created On : Thu Nov 9 13:24:10 2017
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| 14 | // Last Modified By : Peter A. Buhr
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| 15 | // Last Modified On : Sat Oct 24 10:53:15 2020
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| 16 | // Update Count : 21
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| 17 | //
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| 18 |
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| 19 | #pragma once
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| 20 |
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| 21 | #include <stdint.h>
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| 22 | #include <assert.h>
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| 23 |
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| 24 | #define likely(x) __builtin_expect(!!(x), 1)
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| 25 | #define unlikely(x) __builtin_expect(!!(x), 0)
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| 26 | #define thread_local _Thread_local
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| 27 |
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| 28 | typedef void (*fptr_t)();
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| 29 | typedef int_fast16_t __lock_size_t;
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| 30 |
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| 31 | #ifdef __cforall
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| 32 | #define __cfa_anonymous_object(x) inline struct x
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| 33 | #else
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| 34 | #define __cfa_anonymous_object(x) struct x __cfa_anonymous_object
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| 35 | #endif
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| 36 |
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| 37 | #ifdef __cforall
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| 38 | void abort( const char fmt[], ... ) __attribute__ (( format(printf, 1, 2), __nothrow__, __leaf__, __noreturn__ ));
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| 39 | void abort( bool signalAbort, const char fmt[], ... ) __attribute__ (( format(printf, 2, 3), __nothrow__, __leaf__, __noreturn__ ));
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| 40 | extern "C" {
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| 41 | #endif
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| 42 | void __cabi_abort( const char fmt[], ... ) __attribute__ (( format(printf, 1, 2), __nothrow__, __leaf__, __noreturn__ ));
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| 43 | #ifdef __cforall
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| 44 | }
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| 45 | #endif
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| 46 |
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| 47 | #if defined(__cforall_thread__)
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| 48 | #define OPTIONAL_THREAD
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| 49 | #else
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| 50 | #define OPTIONAL_THREAD __attribute__((weak))
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| 51 | #endif
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| 52 |
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| 53 | static inline long long int rdtscl(void) {
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| 54 | #if defined( __i386 ) || defined( __x86_64 )
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| 55 | unsigned int lo, hi;
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| 56 | __asm__ __volatile__ ("rdtsc" : "=a"(lo), "=d"(hi));
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| 57 | return ( (unsigned long long)lo)|( ((unsigned long long)hi)<<32 );
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| 58 | #elif defined( __aarch64__ ) || defined( __arm__ )
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| 59 | // https://github.com/google/benchmark/blob/v1.1.0/src/cycleclock.h#L116
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| 60 | long long int virtual_timer_value;
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| 61 | asm volatile("mrs %0, cntvct_el0" : "=r"(virtual_timer_value));
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| 62 | return virtual_timer_value;
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| 63 | #else
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| 64 | #error unsupported hardware architecture
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| 65 | #endif
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| 66 | }
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| 67 |
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| 68 | // pause to prevent excess processor bus usage
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| 69 | #if defined( __i386 ) || defined( __x86_64 )
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| 70 | #define Pause() __asm__ __volatile__ ( "pause" : : : )
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| 71 | #elif defined( __ARM_ARCH )
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| 72 | #define Pause() __asm__ __volatile__ ( "YIELD" : : : )
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| 73 | #else
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| 74 | #error unsupported architecture
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| 75 | #endif
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