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// Copyright 2015, VIXL authors
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of ARM Limited nor the names of its contributors may be
// used to endorse or promote products derived from this software without
// specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef VIXL_GLOBALS_H
#define VIXL_GLOBALS_H
// Get standard C99 macros for integer types.
#ifndef __STDC_CONSTANT_MACROS
#define __STDC_CONSTANT_MACROS
#endif
#ifndef __STDC_LIMIT_MACROS
#define __STDC_LIMIT_MACROS
#endif
#ifndef __STDC_FORMAT_MACROS
#define __STDC_FORMAT_MACROS
#endif
extern "C" {
#include <inttypes.h>
#include <stdint.h>
}
#include <cassert>
#include <cstdarg>
#include <cstddef>
#include <cstdio>
#include <cstdlib>
#include "platform-vixl.h"
#ifdef VIXL_NEGATIVE_TESTING
#include <stdexcept>
#include <string>
#include <sstream>
#endif
namespace vixl {
typedef uint8_t byte;
// Type for half-precision (16 bit) floating point numbers.
typedef uint16_t float16;
const int KBytes = 1024;
const int MBytes = 1024 * KBytes;
const int kBitsPerByte = 8;
template <int SizeInBytes>
struct Unsigned;
template <>
struct Unsigned<4> {
typedef uint32_t type;
};
template <>
struct Unsigned<8> {
typedef uint64_t type;
};
} // namespace vixl
// Detect the host's pointer size.
#if (UINTPTR_MAX == UINT32_MAX)
#define VIXL_HOST_POINTER_32
#elif(UINTPTR_MAX == UINT64_MAX)
#define VIXL_HOST_POINTER_64
#else
#error "Unsupported host pointer size."
#endif
#ifdef VIXL_NEGATIVE_TESTING
#define VIXL_ABORT() \
do { \
std::ostringstream oss; \
oss << "Aborting in " << __FILE__ << ", line " << __LINE__ << std::endl; \
throw std::runtime_error(oss.str()); \
} while (false)
#define VIXL_ABORT_WITH_MSG(msg) \
do { \
std::ostringstream oss; \
oss << (msg) << "in " << __FILE__ << ", line " << __LINE__ << std::endl; \
throw std::runtime_error(oss.str()); \
} while (false)
#define VIXL_CHECK(condition) \
do { \
if (!(condition)) { \
std::ostringstream oss; \
oss << "Assertion failed (" #condition ")\nin "; \
oss << __FILE__ << ", line " << __LINE__ << std::endl; \
throw std::runtime_error(oss.str()); \
} \
} while (false)
#define VIXL_THROW_IN_NEGATIVE_TESTING_MODE(error) throw(error)
#else
#define VIXL_ABORT() \
do { \
printf("Aborting in %s, line %i\n", __FILE__, __LINE__); \
abort(); \
} while (false)
#define VIXL_ABORT_WITH_MSG(msg) \
do { \
printf("%sin %s, line %i\n", (msg), __FILE__, __LINE__); \
abort(); \
} while (false)
#define VIXL_CHECK(condition) \
do { \
if (!(condition)) { \
printf("Assertion failed (%s)\nin %s, line %i\n", \
#condition, \
__FILE__, \
__LINE__); \
abort(); \
} \
} while (false)
#define VIXL_THROW_IN_NEGATIVE_TESTING_MODE(error)
#endif
#ifdef VIXL_DEBUG
#define VIXL_ASSERT(condition) VIXL_CHECK(condition)
#define VIXL_UNIMPLEMENTED() \
do { \
VIXL_ABORT_WITH_MSG("UNIMPLEMENTED "); \
} while (false)
#define VIXL_UNREACHABLE() \
do { \
VIXL_ABORT_WITH_MSG("UNREACHABLE "); \
} while (false)
#else
#define VIXL_ASSERT(condition) ((void)0)
#define VIXL_UNIMPLEMENTED() ((void)0)
#define VIXL_UNREACHABLE() ((void)0)
#endif
// This is not as powerful as template based assertions, but it is simple.
// It assumes that the descriptions are unique. If this starts being a problem,
// we can switch to a different implemention.
#define VIXL_CONCAT(a, b) a##b
#if __cplusplus >= 201103L
#define VIXL_STATIC_ASSERT_LINE(line_unused, condition, message) \
static_assert(condition, message)
#else
#define VIXL_STATIC_ASSERT_LINE(line, condition, message_unused) \
typedef char VIXL_CONCAT(STATIC_ASSERT_LINE_, line)[(condition) ? 1 : -1] \
__attribute__((unused))
#endif
#define VIXL_STATIC_ASSERT(condition) \
VIXL_STATIC_ASSERT_LINE(__LINE__, condition, "")
#define VIXL_STATIC_ASSERT_MESSAGE(condition, message) \
VIXL_STATIC_ASSERT_LINE(__LINE__, condition, message)
#define VIXL_WARNING(message) \
do { \
printf("WARNING in %s, line %i: %s", __FILE__, __LINE__, message); \
} while (false)
template <typename T1>
inline void USE(const T1&) {}
template <typename T1, typename T2>
inline void USE(const T1&, const T2&) {}
template <typename T1, typename T2, typename T3>
inline void USE(const T1&, const T2&, const T3&) {}
template <typename T1, typename T2, typename T3, typename T4>
inline void USE(const T1&, const T2&, const T3&, const T4&) {}
#define VIXL_ALIGNMENT_EXCEPTION() \
do { \
fprintf(stderr, "ALIGNMENT EXCEPTION\t"); \
VIXL_ABORT(); \
} while (0)
// The clang::fallthrough attribute is used along with the Wimplicit-fallthrough
// argument to annotate intentional fall-through between switch labels.
// For more information please refer to:
// http://clang.llvm.org/docs/AttributeReference.html#fallthrough-clang-fallthrough
#ifndef __has_warning
#define __has_warning(x) 0
#endif
// Note: This option is only available for Clang. And will only be enabled for
// C++11(201103L).
#if __has_warning("-Wimplicit-fallthrough") && __cplusplus >= 201103L
#define VIXL_FALLTHROUGH() [[clang::fallthrough]]
#else
#define VIXL_FALLTHROUGH() \
do { \
} while (0)
#endif
#if __cplusplus >= 201103L
#define VIXL_NO_RETURN [[noreturn]]
#else
#define VIXL_NO_RETURN __attribute__((noreturn))
#endif
#ifdef VIXL_DEBUG
#define VIXL_NO_RETURN_IN_DEBUG_MODE VIXL_NO_RETURN
#else
#define VIXL_NO_RETURN_IN_DEBUG_MODE
#endif
#if __cplusplus >= 201103L
#define VIXL_OVERRIDE override
#else
#define VIXL_OVERRIDE
#endif
// Some functions might only be marked as "noreturn" for the DEBUG build. This
// macro should be used for such cases (for more details see what
// VIXL_UNREACHABLE expands to).
#ifdef VIXL_DEBUG
#define VIXL_DEBUG_NO_RETURN VIXL_NO_RETURN
#else
#define VIXL_DEBUG_NO_RETURN
#endif
#ifdef VIXL_INCLUDE_SIMULATOR_AARCH64
#ifndef VIXL_AARCH64_GENERATE_SIMULATOR_CODE
#define VIXL_AARCH64_GENERATE_SIMULATOR_CODE 1
#endif
#else
#ifndef VIXL_AARCH64_GENERATE_SIMULATOR_CODE
#define VIXL_AARCH64_GENERATE_SIMULATOR_CODE 0
#endif
#if VIXL_AARCH64_GENERATE_SIMULATOR_CODE
#warning "Generating Simulator instructions without Simulator support."
#endif
#endif
// We do not have a simulator for AArch32, although we can pretend we do so that
// tests that require running natively can be skipped.
#ifndef __arm__
#define VIXL_INCLUDE_SIMULATOR_AARCH32
#ifndef VIXL_AARCH32_GENERATE_SIMULATOR_CODE
#define VIXL_AARCH32_GENERATE_SIMULATOR_CODE 1
#endif
#else
#ifndef VIXL_AARCH32_GENERATE_SIMULATOR_CODE
#define VIXL_AARCH32_GENERATE_SIMULATOR_CODE 0
#endif
#endif
#ifdef USE_SIMULATOR
#error "Please see the release notes for USE_SIMULATOR."
#endif
// Target Architecture/ISA
#ifdef VIXL_INCLUDE_TARGET_A64
#define VIXL_INCLUDE_TARGET_AARCH64
#endif
#if defined(VIXL_INCLUDE_TARGET_A32) && defined(VIXL_INCLUDE_TARGET_T32)
#define VIXL_INCLUDE_TARGET_AARCH32
#elif defined(VIXL_INCLUDE_TARGET_A32)
#define VIXL_INCLUDE_TARGET_A32_ONLY
#else
#define VIXL_INCLUDE_TARGET_T32_ONLY
#endif
#endif // VIXL_GLOBALS_H
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