ac36cb4504
Review URL: http://codereview.chromium.org/7945009 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9328 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
117 lines
4.3 KiB
C++
117 lines
4.3 KiB
C++
// Copyright 2011 the V8 project authors. All rights reserved.
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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
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (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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#include "cctest.h"
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#include "assembler.h"
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namespace v8 {
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namespace internal {
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static void WriteRinfo(RelocInfoWriter* writer,
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byte* pc, RelocInfo::Mode mode, intptr_t data) {
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RelocInfo rinfo(pc, mode, data, NULL);
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writer->Write(&rinfo);
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}
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// Tests that writing both types of positions and then reading either
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// or both works as expected.
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TEST(Positions) {
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const int code_size = 10 * KB;
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int relocation_info_size = 10 * KB;
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const int buffer_size = code_size + relocation_info_size;
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SmartArrayPointer<byte> buffer(new byte[buffer_size]);
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byte* pc = *buffer;
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byte* buffer_end = *buffer + buffer_size;
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RelocInfoWriter writer(buffer_end, pc);
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byte* relocation_info_end = buffer_end - relocation_info_size;
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for (int i = 0, pos = 0; i < 100; i++, pc += i, pos += i) {
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RelocInfo::Mode mode = (i % 2 == 0) ?
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RelocInfo::STATEMENT_POSITION : RelocInfo::POSITION;
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WriteRinfo(&writer, pc, mode, pos);
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CHECK(writer.pos() - RelocInfoWriter::kMaxSize >= relocation_info_end);
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}
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relocation_info_size = static_cast<int>(buffer_end - writer.pos());
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CodeDesc desc = { *buffer, buffer_size, code_size,
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relocation_info_size, NULL };
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// Read only (non-statement) positions.
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{
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RelocIterator it(desc, RelocInfo::ModeMask(RelocInfo::POSITION));
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pc = *buffer;
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for (int i = 0, pos = 0; i < 100; i++, pc += i, pos += i) {
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RelocInfo::Mode mode = (i % 2 == 0) ?
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RelocInfo::STATEMENT_POSITION : RelocInfo::POSITION;
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if (mode == RelocInfo::POSITION) {
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CHECK_EQ(pc, it.rinfo()->pc());
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CHECK_EQ(mode, it.rinfo()->rmode());
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CHECK_EQ(pos, static_cast<int>(it.rinfo()->data()));
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it.next();
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}
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}
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CHECK(it.done());
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}
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// Read only statement positions.
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{
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RelocIterator it(desc, RelocInfo::ModeMask(RelocInfo::STATEMENT_POSITION));
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pc = *buffer;
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for (int i = 0, pos = 0; i < 100; i++, pc += i, pos += i) {
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RelocInfo::Mode mode = (i % 2 == 0) ?
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RelocInfo::STATEMENT_POSITION : RelocInfo::POSITION;
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if (mode == RelocInfo::STATEMENT_POSITION) {
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CHECK_EQ(pc, it.rinfo()->pc());
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CHECK_EQ(mode, it.rinfo()->rmode());
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CHECK_EQ(pos, static_cast<int>(it.rinfo()->data()));
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it.next();
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}
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}
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CHECK(it.done());
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}
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// Read both types of positions.
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{
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RelocIterator it(desc, RelocInfo::kPositionMask);
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pc = *buffer;
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for (int i = 0, pos = 0; i < 100; i++, pc += i, pos += i) {
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RelocInfo::Mode mode = (i % 2 == 0) ?
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RelocInfo::STATEMENT_POSITION : RelocInfo::POSITION;
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CHECK_EQ(pc, it.rinfo()->pc());
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CHECK_EQ(mode, it.rinfo()->rmode());
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CHECK_EQ(pos, static_cast<int>(it.rinfo()->data()));
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it.next();
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}
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CHECK(it.done());
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}
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}
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} } // namespace v8::internal
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