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[Base] Linux Arm64 exception handler

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Triang3l
2022-07-05 20:46:49 +03:00
parent 2d5602447e
commit d51fafd07c
16 changed files with 477 additions and 119 deletions
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src/xenia/base/exception_handler.cc Normal file
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/**
******************************************************************************
* Xenia : Xbox 360 Emulator Research Project *
******************************************************************************
* Copyright 2022 Ben Vanik. All rights reserved. *
* Released under the BSD license - see LICENSE in the root for more details. *
******************************************************************************
*/
#include "xenia/base/exception_handler.h"
namespace xe {
// Based on VIXL Instruction::IsLoad and IsStore.
// https://github.com/Linaro/vixl/blob/d48909dd0ac62197edb75d26ed50927e4384a199/src/aarch64/instructions-aarch64.cc#L484
//
// 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.
bool IsArm64LoadPrefetchStore(uint32_t instruction, bool& is_store_out) {
if ((instruction & kArm64LoadStoreAnyMask) != kArm64LoadStoreAnyValue) {
return false;
}
if ((instruction & kArm64LoadStorePairAnyMask) ==
kArm64LoadStorePairAnyValue) {
is_store_out = !(instruction & kArm64LoadStorePairLoadBit);
return true;
}
switch (Arm64LoadStoreOp(instruction & kArm64LoadStoreMask)) {
case Arm64LoadStoreOp::kLDRB_w:
case Arm64LoadStoreOp::kLDRH_w:
case Arm64LoadStoreOp::kLDR_w:
case Arm64LoadStoreOp::kLDR_x:
case Arm64LoadStoreOp::kLDRSB_x:
case Arm64LoadStoreOp::kLDRSH_x:
case Arm64LoadStoreOp::kLDRSW_x:
case Arm64LoadStoreOp::kLDRSB_w:
case Arm64LoadStoreOp::kLDRSH_w:
case Arm64LoadStoreOp::kLDR_b:
case Arm64LoadStoreOp::kLDR_h:
case Arm64LoadStoreOp::kLDR_s:
case Arm64LoadStoreOp::kLDR_d:
case Arm64LoadStoreOp::kLDR_q:
case Arm64LoadStoreOp::kPRFM:
is_store_out = false;
return true;
case Arm64LoadStoreOp::kSTRB_w:
case Arm64LoadStoreOp::kSTRH_w:
case Arm64LoadStoreOp::kSTR_w:
case Arm64LoadStoreOp::kSTR_x:
case Arm64LoadStoreOp::kSTR_b:
case Arm64LoadStoreOp::kSTR_h:
case Arm64LoadStoreOp::kSTR_s:
case Arm64LoadStoreOp::kSTR_d:
case Arm64LoadStoreOp::kSTR_q:
is_store_out = true;
return true;
default:
return false;
}
}
} // namespace xe