1 //===- InlineInfo.cpp -------------------------------------------*- C++ -*-===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
64 /// Skip an InlineInfo object in the specified data at the specified offset.
71 /// \param Data The binary stream to read the data from.
73 /// \param Offset The byte offset within \a Data.
75 /// \param SkippedRanges If true, address ranges have already been skipped.
77 static bool skip(DataExtractor &Data, uint64_t &Offset, bool SkippedRanges) {  in skip()  argument
79     if (skipRanges(Data, Offset) == 0)  in skip()
82   bool HasChildren = Data.getU8(&Offset) != 0;  in skip()
83   Data.getU32(&Offset); // Skip Inline.Name.  in skip()
84   Data.getULEB128(&Offset); // Skip Inline.CallFile.  in skip()
85   Data.getULEB128(&Offset); // Skip Inline.CallLine.  in skip()
87     while (skip(Data, Offset, false /* SkippedRanges */))  in skip()
97 /// InlineInfo object if the address falls within this object. This avoids
100 /// not contain the address we are looking up.
102 /// \param Data The binary stream to read the data from.
104 /// \param Offset The byte offset within \a Data.
106 /// \param BaseAddr The address that the relative address range offsets are
109 static bool lookup(const GsymReader &GR, DataExtractor &Data, uint64_t &Offset,  in lookup()  argument
113   decodeRanges(Inline.Ranges, Data, BaseAddr, Offset);  in lookup()
116   // Check if the address is contained within the inline information, and if  in lookup()
119     skip(Data, Offset, true /* SkippedRanges */);  in lookup()
123   // The address range is contained within this InlineInfo, add the source  in lookup()
124   // location for this InlineInfo and any children that contain the address.  in lookup()
125   bool HasChildren = Data.getU8(&Offset) != 0;  in lookup()
126   Inline.Name = Data.getU32(&Offset);  in lookup()
127   Inline.CallFile = (uint32_t)Data.getULEB128(&Offset);  in lookup()
128   Inline.CallLine = (uint32_t)Data.getULEB128(&Offset);  in lookup()
130     // Child address ranges are encoded relative to the first address in the  in lookup()
135       Done = lookup(GR, Data, Offset, ChildBaseAddr, Addr, SrcLocs, Err);  in lookup()
146   if (CallFile->Dir || CallFile->Base) {  in lookup()
150     SrcLoc.Dir = GR.getString(CallFile->Dir);  in lookup()
151     SrcLoc.Base = GR.getString(CallFile->Base);  in lookup()
154     SrcLocs.back().Offset = Addr - Inline.Ranges[0].start();  in lookup()
160 llvm::Error InlineInfo::lookup(const GsymReader &GR, DataExtractor &Data,  in lookup()  argument
166   ::lookup(GR, Data, Offset, BaseAddr, Addr, SrcLocs, Err);  in lookup()
170 /// Decode an InlineInfo in Data at the specified offset.
175 /// \param Data The data extractor to decode from.
176 /// \param Offset The offset within \a Data to decode from.
177 /// \param BaseAddr The base address to use when decoding address ranges.
180 static llvm::Expected<InlineInfo> decode(DataExtractor &Data, uint64_t &Offset,  in decode()  argument
183   if (!Data.isValidOffset(Offset))  in decode()
185         "0x%8.8" PRIx64 ": missing InlineInfo address ranges data", Offset);  in decode()
186   decodeRanges(Inline.Ranges, Data, BaseAddr, Offset);  in decode()
189   if (!Data.isValidOffsetForDataOfSize(Offset, 1))  in decode()
193   bool HasChildren = Data.getU8(&Offset) != 0;  in decode()
194   if (!Data.isValidOffsetForDataOfSize(Offset, 4))  in decode()
197   Inline.Name = Data.getU32(&Offset);  in decode()
198   if (!Data.isValidOffset(Offset))  in decode()
201   Inline.CallFile = (uint32_t)Data.getULEB128(&Offset);  in decode()
202   if (!Data.isValidOffset(Offset))  in decode()
205   Inline.CallLine = (uint32_t)Data.getULEB128(&Offset);  in decode()
207     // Child address ranges are encoded relative to the first address in the  in decode()
211       llvm::Expected<InlineInfo> Child = decode(Data, Offset, ChildBaseAddr);  in decode()
223 llvm::Expected<InlineInfo> InlineInfo::decode(DataExtractor &Data,  in decode()  argument
226   return ::decode(Data, Offset, BaseAddr);  in decode()
243     // Child address ranges are encoded as relative to the first  in encode()
244     // address in the Ranges for this object. This keeps the offsets  in encode()
248       // Make sure all child address ranges are contained in the parent address  in encode()