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Define and use a a new MDRawContextARM64

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This struct matches the layout defined by Microsoft and replaces
Breakpad's MDRawContextARM64_Old. This CL updates the processor to
understand either the old or new structs, but clients continue to write
the old structs.

Change-Id: I8dedd9ddb2ec083b802723b9ac87beb18d98edbd
Reviewed-on: https://chromium-review.googlesource.com/1155938
Reviewed-by: Mark Mentovai <mark@chromium.org>
This commit is contained in:
Joshua Peraza
2018-08-01 10:48:27 -07:00
parent 627ef0cb9c
commit 88d8114fda
22 changed files with 411 additions and 83 deletions
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67
src/processor/convert_old_arm64_context.cc Normal file
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// Copyright (c) 2018, Google Inc.
// 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 Google Inc. 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 AND 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 "processor/convert_old_arm64_context.h"
#include <string.h>
namespace google_breakpad {
void ConvertOldARM64Context(const MDRawContextARM64_Old& old,
MDRawContextARM64* context) {
context->context_flags = MD_CONTEXT_ARM64;
if (old.context_flags & MD_CONTEXT_ARM64_INTEGER_OLD) {
context->context_flags |=
MD_CONTEXT_ARM64_INTEGER | MD_CONTEXT_ARM64_CONTROL;
}
if (old.context_flags & MD_CONTEXT_ARM64_FLOATING_POINT_OLD) {
context->context_flags |= MD_CONTEXT_ARM64_FLOATING_POINT;
}
context->cpsr = old.cpsr;
static_assert(sizeof(old.iregs) == sizeof(context->iregs),
"iregs size mismatch");
memcpy(context->iregs, old.iregs, sizeof(context->iregs));
static_assert(sizeof(old.float_save.regs) == sizeof(context->float_save.regs),
"float_save.regs size mismatch");
memcpy(context->float_save.regs,
old.float_save.regs,
sizeof(context->float_save.regs));
context->float_save.fpcr = old.float_save.fpcr;
context->float_save.fpsr = old.float_save.fpsr;
memset(context->bcr, 0, sizeof(context->bcr));
memset(context->bvr, 0, sizeof(context->bvr));
memset(context->wcr, 0, sizeof(context->wcr));
memset(context->wvr, 0, sizeof(context->wvr));
}
} // namespace google_breakpad