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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.
#include "test-utils.h"
#include <string.h>
extern "C" {
#include <sys/mman.h>
}
#include "globals-vixl.h"
#ifdef VIXL_INCLUDE_TARGET_AARCH64
#include "aarch64/cpu-aarch64.h"
#endif
namespace vixl {
// BSD uses `MAP_ANON` instead of the Linux `MAP_ANONYMOUS`. The `MAP_ANONYMOUS`
// alias should generally be available, but is not always, so define it manually
// if necessary.
#if !defined(MAP_ANONYMOUS) && defined(MAP_ANON)
#define MAP_ANONYMOUS MAP_ANON
#endif
void ExecuteMemory(byte* buffer, size_t size, int byte_offset) {
void (*test_function)(void);
VIXL_ASSERT((byte_offset >= 0) && (static_cast<size_t>(byte_offset) < size));
VIXL_STATIC_ASSERT(sizeof(buffer) == sizeof(test_function));
VIXL_STATIC_ASSERT(sizeof(uintptr_t) == sizeof(test_function));
uintptr_t entry_point = reinterpret_cast<uintptr_t>(buffer);
entry_point += byte_offset;
memcpy(&test_function, &entry_point, sizeof(test_function));
USE(size);
#if defined(__aarch64__) && defined(VIXL_INCLUDE_TARGET_AARCH64)
aarch64::CPU::EnsureIAndDCacheCoherency(buffer, size);
#elif defined(__arm__) && \
(defined(VIXL_INCLUDE_TARGET_A32) || defined(VIXL_INCLUDE_TARGET_T32))
// TODO: Do not use __builtin___clear_cache and instead implement
// `CPU::EnsureIAndDCacheCoherency` for aarch32.
__builtin___clear_cache(buffer, reinterpret_cast<char*>(buffer) + size);
#else
// This helper requires a native (non-Simulator) environment.
VIXL_ABORT_WITH_MSG("Cannot ExecuteMemory(...): unsupported platform.");
#endif
test_function();
}
} // namespace vixl
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