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Diffstat (limited to 'deps/v8/test/cctest/test-reloc-info.cc')
-rw-r--r-- | deps/v8/test/cctest/test-reloc-info.cc | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/deps/v8/test/cctest/test-reloc-info.cc b/deps/v8/test/cctest/test-reloc-info.cc new file mode 100644 index 000000000..2b9beac12 --- /dev/null +++ b/deps/v8/test/cctest/test-reloc-info.cc @@ -0,0 +1,109 @@ +// Copyright 2010 the V8 project 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 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 "cctest.h" +#include "assembler.h" + +namespace v8 { +namespace internal { + +static void WriteRinfo(RelocInfoWriter* writer, + byte* pc, RelocInfo::Mode mode, intptr_t data) { + RelocInfo rinfo(pc, mode, data); + writer->Write(&rinfo); +} + + +// Tests that writing both types of positions and then reading either +// or both works as expected. +TEST(Positions) { + const int instr_size = 10 << 10; + const int reloc_size = 10 << 10; + const int buf_size = instr_size + reloc_size; + SmartPointer<byte> buf(new byte[buf_size]); + byte* pc = *buf; + CodeDesc desc = { *buf, buf_size, instr_size, reloc_size, NULL }; + + RelocInfoWriter writer(*buf + buf_size, pc); + for (int i = 0, pos = 0; i < 100; i++, pc += i, pos += i) { + RelocInfo::Mode mode = (i % 2 == 0) ? + RelocInfo::STATEMENT_POSITION : RelocInfo::POSITION; + WriteRinfo(&writer, pc, mode, pos); + } + + // Read only (non-statement) positions. + { + RelocIterator it(desc, RelocInfo::ModeMask(RelocInfo::POSITION)); + pc = *buf; + for (int i = 0, pos = 0; i < 100; i++, pc += i, pos += i) { + RelocInfo::Mode mode = (i % 2 == 0) ? + RelocInfo::STATEMENT_POSITION : RelocInfo::POSITION; + if (mode == RelocInfo::POSITION) { + CHECK_EQ(pc, it.rinfo()->pc()); + CHECK_EQ(mode, it.rinfo()->rmode()); + CHECK_EQ(pos, static_cast<int>(it.rinfo()->data())); + it.next(); + } + } + CHECK(it.done()); + } + + // Read only statement positions. + { + RelocIterator it(desc, RelocInfo::ModeMask(RelocInfo::STATEMENT_POSITION)); + pc = *buf; + for (int i = 0, pos = 0; i < 100; i++, pc += i, pos += i) { + RelocInfo::Mode mode = (i % 2 == 0) ? + RelocInfo::STATEMENT_POSITION : RelocInfo::POSITION; + if (mode == RelocInfo::STATEMENT_POSITION) { + CHECK_EQ(pc, it.rinfo()->pc()); + CHECK_EQ(mode, it.rinfo()->rmode()); + CHECK_EQ(pos, static_cast<int>(it.rinfo()->data())); + it.next(); + } + } + CHECK(it.done()); + } + + // Read both types of positions. + { + RelocIterator it(desc, RelocInfo::kPositionMask); + pc = *buf; + for (int i = 0, pos = 0; i < 100; i++, pc += i, pos += i) { + RelocInfo::Mode mode = (i % 2 == 0) ? + RelocInfo::STATEMENT_POSITION : RelocInfo::POSITION; + CHECK_EQ(pc, it.rinfo()->pc()); + CHECK_EQ(mode, it.rinfo()->rmode()); + CHECK_EQ(pos, static_cast<int>(it.rinfo()->data())); + it.next(); + } + CHECK(it.done()); + } +} + +} } // namespace v8::internal |