source: libcfa/src/bits/defs.hfa

Last change on this file was 639e4fc, checked in by Thierry Delisle <tdelisle@…>, 3 months ago

Changed cluster link to use explicit type to avoid anonymous names in symbols gdb cares about

  • Property mode set to 100644
File size: 2.7 KB
Line 
1//
2// Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// defs.hfa -- Commen macros, functions and typedefs
8// Most files depend on them and they are always useful to have.
9//
10//  *** Must not contain code specific to libcfathread ***
11//
12// Author           : Thierry Delisle
13// Created On       : Thu Nov  9 13:24:10 2017
14// Last Modified By : Peter A. Buhr
15// Last Modified On : Sat Oct 24 10:53:15 2020
16// Update Count     : 21
17//
18
19#pragma once
20
21#include <stdint.h>
22#include <assert.h>
23
24#define likely(x)   __builtin_expect(!!(x), 1)
25#define unlikely(x) __builtin_expect(!!(x), 0)
26
27typedef void (*fptr_t)();
28typedef int_fast16_t __lock_size_t;
29
30#ifdef __cforall
31#define __cfa_anonymous_object(x) inline struct x
32#else
33#define __cfa_anonymous_object(x) struct x __cfa_anonymous_object
34#endif
35
36
37#if defined(__has_attribute)
38#if !__has_attribute(__noclone__)
39#define ATTRIBUTE_NOCLONE
40#endif
41#endif
42#ifndef ATTRIBUTE_NOCLONE
43#define ATTRIBUTE_NOCLONE __attribute__((__noclone__))
44#endif
45
46#define libcfa_public __attribute__((visibility("default")))
47#define libcfa_nopreempt __attribute__((section("cfatext_nopreempt"))) __attribute__((__noinline__)) ATTRIBUTE_NOCLONE
48
49struct __cfa_nopreempt_region {
50        void * start;
51        void * stop;
52};
53
54#ifdef __cforall
55void abort( const char fmt[], ... ) __attribute__ (( format(printf, 1, 2), __nothrow__, __leaf__, __noreturn__ ));
56void abort( bool signalAbort, const char fmt[], ... ) __attribute__ (( format(printf, 2, 3), __nothrow__, __leaf__, __noreturn__ ));
57extern "C" {
58#endif
59void __cabi_abort( const char fmt[], ... ) __attribute__ (( format(printf, 1, 2), __nothrow__, __leaf__, __noreturn__ ));
60#ifdef __cforall
61}
62#endif
63
64#if defined(__cforall_thread__)
65#define OPTIONAL_THREAD
66#else
67#define OPTIONAL_THREAD __attribute__((weak))
68#endif
69
70static inline long long int rdtscl(void) {
71        #if defined( __i386 ) || defined( __x86_64 )
72        unsigned int lo, hi;
73        __asm__ __volatile__ ("rdtsc" : "=a"(lo), "=d"(hi));
74        return ( (unsigned long long)lo)|( ((unsigned long long)hi)<<32 );
75        #elif defined( __aarch64__ ) || defined( __arm__ )
76        // https://github.com/google/benchmark/blob/v1.1.0/src/cycleclock.h#L116
77        long long int virtual_timer_value;
78        asm volatile("mrs %0, cntvct_el0" : "=r"(virtual_timer_value));
79        return virtual_timer_value;
80        #else
81                #error unsupported hardware architecture
82        #endif
83}
84
85// pause to prevent excess processor bus usage
86#if defined( __i386 ) || defined( __x86_64 )
87        #define Pause() __asm__ __volatile__ ( "pause" : : : )
88#elif defined( __ARM_ARCH )
89        #define Pause() __asm__ __volatile__ ( "YIELD" : : : )
90#else
91        #error unsupported architecture
92#endif
93
94#define CFA_IO_LAZY (1_l64u << 32_l64u)
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