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GCC says:
.../llvm/lib/DebugInfo/GSYM/FunctionInfo.cpp:195:12:
error: ‘InfoType’ is not a class, namespace, or enumeration
case InfoType::EndOfList:
^
Presumably, GCC thinks InfoType is a variable here. Work around it by
using the name IT as is done above.
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GsymReader classes.
Summary:
Lookup functions are designed to not fully decode a FunctionInfo, LineTable or InlineInfo, they decode only what is needed into a LookupResult object. This allows lookups to avoid costly memory allocations and avoid parsing large amounts of information one a suitable match is found.
LookupResult objects contain the address that was looked up, the concrete function address range, the name of the concrete function, and a list of source locations. One for each inline function, and one for the concrete function. This allows one address to turn into multiple frames and improves the signal you get when symbolicating addresses in GSYM files.
Reviewers: labath, aprantl
Subscribers: mgorny, hiraditya, llvm-commits, lldb-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D70993
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off_t apparently is just "long" on Win64, which is 32-bits, and
therefore not long enough to compare with UINT32_MAX. Use auto to follow
the surrounding code. uint64_t would also be fine.
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This patch adds the ability to create GSYM files with GsymCreator, and read them with GsymReader. Full testing has been added for both new classes.
This patch differs from the original patch https://reviews.llvm.org/D53379 in that is uses a StringTableBuilder class from llvm instead of a custom version. Support for big and little endian files has been added. If the endianness matches the current host, we use efficient extraction for the header, address table and address info offset tables.
Differential Revision: https://reviews.llvm.org/D68744
llvm-svn: 374381
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This patch adds encoding and decoding of the FunctionInfo objects along with full error handling and tests. Full details of the FunctionInfo encoding format appear in the FunctionInfo.h header file.
Differential Revision: https://reviews.llvm.org/D67506
llvm-svn: 372135
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due to a type and variable with the same name
llvm-svn: 371681
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This patch adds the ability to create a gsym::LineTable object, populate it, encode and decode it and test all functionality.
The full format of the LineTable encoding is specified in the header file LineTable.h.
Differential Revision: https://reviews.llvm.org/D66602
llvm-svn: 371657
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Delete unnecessary getters of AddressRange.
Simplify AddressRange::size(): Start <= End check should be checked in an upper layer.
Delete isContiguousWith() that doesn't make sense.
Simplify AddressRanges::insert. Delete commented code. Fix it when more than 1 ranges are to be deleted.
Delete trailing newline.
llvm-svn: 364637
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The full GSYM patch started with: https://reviews.llvm.org/D53379
In that patch we wanted to split up getting GSYM into the LLVM code base so we are not committing too much code at once.
This is a first in a series of patches where I only add the foundation classes along with complete unit tests. They provide the foundation for encoding and decoding a GSYM file.
File entries are defined in llvm::gsym::FileEntry. This class splits the file up into a directory and filename represented by uniqued string table offsets. This allows all files that are referred to in a GSYM file to be encoded as 1 based indexes into a global file table in the GSYM file.
Function information in stored in llvm::gsym::FunctionInfo. This object represents a contiguous address range that has a name and range with an optional line table and inline call stack information.
Line table entries are defined in llvm::gsym::LineEntry. They store only address, file and line information to keep the line tables simple and allows the information to be efficiently encoded in a subsequent patch.
Inline information is defined in llvm::gsym::InlineInfo. These structs store the name of the inline function, along with one or more address ranges, and the file and line that called this function. They also contain any child inline information.
There are also utility classes for address ranges in llvm::gsym::AddressRange, and string table support in llvm::gsym::StringTable which are simple classes.
The unit tests test all the APIs on these simple classes so they will be ready for the next patches where we will create GSYM files and parse GSYM files.
Differential Revision: https://reviews.llvm.org/D63104
llvm-svn: 364427
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