152 lines
5.2 KiB
C++
152 lines
5.2 KiB
C++
// Copyright 2015, ARM Limited
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of ARM Limited nor the names of its contributors may be
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// used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef VIXL_GLOBALS_H
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#define VIXL_GLOBALS_H
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// Get standard C99 macros for integer types.
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#ifndef __STDC_CONSTANT_MACROS
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#define __STDC_CONSTANT_MACROS
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#endif
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#ifndef __STDC_LIMIT_MACROS
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#define __STDC_LIMIT_MACROS
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#endif
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#ifndef __STDC_FORMAT_MACROS
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#define __STDC_FORMAT_MACROS
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#endif
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#include <stdint.h>
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#include <inttypes.h>
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#include <assert.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <stddef.h>
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#include "vixl/platform.h"
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typedef uint8_t byte;
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// Type for half-precision (16 bit) floating point numbers.
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typedef uint16_t float16;
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const int KBytes = 1024;
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const int MBytes = 1024 * KBytes;
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#define VIXL_ABORT() \
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do { printf("in %s, line %i", __FILE__, __LINE__); abort(); } while (false)
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#ifdef VIXL_DEBUG
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#define VIXL_ASSERT(condition) assert(condition)
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#define VIXL_CHECK(condition) VIXL_ASSERT(condition)
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#define VIXL_UNIMPLEMENTED() \
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do { fprintf(stderr, "UNIMPLEMENTED\t"); VIXL_ABORT(); } while (false)
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#define VIXL_UNREACHABLE() \
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do { fprintf(stderr, "UNREACHABLE\t"); VIXL_ABORT(); } while (false)
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#else
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#define VIXL_ASSERT(condition) ((void) 0)
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#define VIXL_CHECK(condition) assert(condition)
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#define VIXL_UNIMPLEMENTED() ((void) 0)
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#define VIXL_UNREACHABLE() ((void) 0)
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#endif
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// This is not as powerful as template based assertions, but it is simple.
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// It assumes that the descriptions are unique. If this starts being a problem,
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// we can switch to a different implemention.
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#define VIXL_CONCAT(a, b) a##b
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#define VIXL_STATIC_ASSERT_LINE(line, condition) \
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typedef char VIXL_CONCAT(STATIC_ASSERT_LINE_, line)[(condition) ? 1 : -1] \
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__attribute__((unused))
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#define VIXL_STATIC_ASSERT(condition) \
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VIXL_STATIC_ASSERT_LINE(__LINE__, condition)
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template <typename T1>
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inline void USE(T1) {}
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template <typename T1, typename T2>
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inline void USE(T1, T2) {}
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template <typename T1, typename T2, typename T3>
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inline void USE(T1, T2, T3) {}
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template <typename T1, typename T2, typename T3, typename T4>
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inline void USE(T1, T2, T3, T4) {}
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#define VIXL_ALIGNMENT_EXCEPTION() \
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do { fprintf(stderr, "ALIGNMENT EXCEPTION\t"); VIXL_ABORT(); } while (0)
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// The clang::fallthrough attribute is used along with the Wimplicit-fallthrough
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// argument to annotate intentional fall-through between switch labels.
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// For more information please refer to:
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// http://clang.llvm.org/docs/AttributeReference.html#fallthrough-clang-fallthrough
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#ifndef __has_warning
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#define __has_warning(x) 0
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#endif
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// Note: This option is only available for Clang. And will only be enabled for
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// C++11(201103L).
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#if __has_warning("-Wimplicit-fallthrough") && __cplusplus >= 201103L
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#define VIXL_FALLTHROUGH() [[clang::fallthrough]] //NOLINT
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#else
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#define VIXL_FALLTHROUGH() do {} while (0)
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#endif
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#if __cplusplus >= 201103L
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#define VIXL_NO_RETURN [[noreturn]] //NOLINT
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#else
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#define VIXL_NO_RETURN __attribute__((noreturn))
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#endif
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// Some functions might only be marked as "noreturn" for the DEBUG build. This
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// macro should be used for such cases (for more details see what
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// VIXL_UNREACHABLE expands to).
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#ifdef VIXL_DEBUG
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#define VIXL_DEBUG_NO_RETURN VIXL_NO_RETURN
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#else
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#define VIXL_DEBUG_NO_RETURN
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#endif
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#ifdef VIXL_INCLUDE_SIMULATOR
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#ifndef VIXL_GENERATE_SIMULATOR_INSTRUCTIONS_VALUE
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#define VIXL_GENERATE_SIMULATOR_INSTRUCTIONS_VALUE 1
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#endif
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#else
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#ifndef VIXL_GENERATE_SIMULATOR_INSTRUCTIONS_VALUE
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#define VIXL_GENERATE_SIMULATOR_INSTRUCTIONS_VALUE 0
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#endif
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#if VIXL_GENERATE_SIMULATOR_INSTRUCTIONS_VALUE
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#warning "Generating Simulator instructions without Simulator support."
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#endif
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#endif
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#ifdef USE_SIMULATOR
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#error "Please see the release notes for USE_SIMULATOR."
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#endif
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#endif // VIXL_GLOBALS_H
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