2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
96 lines
2.8 KiB
C++
96 lines
2.8 KiB
C++
//===-- CoreMedia.cpp --------------------------------------------*- C++
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//-*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "CoreMedia.h"
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#include "lldb/Utility/Flags.h"
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#include "lldb/Symbol/TypeSystem.h"
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#include "lldb/Target/Target.h"
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#include <inttypes.h>
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using namespace lldb;
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using namespace lldb_private;
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using namespace lldb_private::formatters;
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bool lldb_private::formatters::CMTimeSummaryProvider(
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ValueObject &valobj, Stream &stream, const TypeSummaryOptions &options) {
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CompilerType type = valobj.GetCompilerType();
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if (!type.IsValid())
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return false;
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TypeSystem *type_system =
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valobj.GetExecutionContextRef()
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.GetTargetSP()
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->GetScratchTypeSystemForLanguage(nullptr, lldb::eLanguageTypeC);
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if (!type_system)
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return false;
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// fetch children by offset to compensate for potential lack of debug info
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auto int64_ty =
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type_system->GetBuiltinTypeForEncodingAndBitSize(eEncodingSint, 64);
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auto int32_ty =
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type_system->GetBuiltinTypeForEncodingAndBitSize(eEncodingSint, 32);
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auto value_sp(valobj.GetSyntheticChildAtOffset(0, int64_ty, true));
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auto timescale_sp(valobj.GetSyntheticChildAtOffset(8, int32_ty, true));
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auto flags_sp(valobj.GetSyntheticChildAtOffset(12, int32_ty, true));
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if (!value_sp || !timescale_sp || !flags_sp)
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return false;
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auto value = value_sp->GetValueAsUnsigned(0);
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auto timescale = (int32_t)timescale_sp->GetValueAsUnsigned(
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0); // the timescale specifies the fraction of a second each unit in the
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// numerator occupies
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auto flags = Flags(flags_sp->GetValueAsUnsigned(0) &
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0x00000000000000FF); // the flags I need sit in the LSB
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const unsigned int FlagPositiveInf = 4;
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const unsigned int FlagNegativeInf = 8;
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const unsigned int FlagIndefinite = 16;
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if (flags.AnySet(FlagIndefinite)) {
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stream.Printf("indefinite");
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return true;
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}
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if (flags.AnySet(FlagPositiveInf)) {
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stream.Printf("+oo");
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return true;
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}
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if (flags.AnySet(FlagNegativeInf)) {
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stream.Printf("-oo");
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return true;
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}
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if (timescale == 0)
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return false;
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switch (timescale) {
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case 0:
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return false;
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case 1:
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stream.Printf("%" PRId64 " seconds", value);
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return true;
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case 2:
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stream.Printf("%" PRId64 " half seconds", value);
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return true;
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case 3:
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stream.Printf("%" PRId64 " third%sof a second", value,
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value == 1 ? " " : "s ");
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return true;
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default:
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stream.Printf("%" PRId64 " %" PRId32 "th%sof a second", value, timescale,
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value == 1 ? " " : "s ");
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return true;
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}
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}
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