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This is more concise, and matches the terminology used in other
parts of the codebase more closely.
llvm-svn: 304218
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The raw CodeView format references strings by "offsets", but it's
confusing what table the offset refers to. In the case of line
number information, it's an offset into a buffer of records,
and an indirection is required to get another offset into a
different table to find the final string. And in the case of
checksum information, there is no indirection, and the offset
refers directly to the location of the string in another buffer.
This would be less confusing if we always just referred to the
strings by their value, and have the library be smart enough
to correctly resolve the offsets on its own from the right
location.
This patch makes that possible. When either reading or writing,
all the user deals with are strings, and the library does the
appropriate translations behind the scenes.
llvm-svn: 302053
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This was reported by the ASAN bot, and it turned out to be
a fairly fundamental problem with the design of VarStreamArray
and the way it passes context information to the extractor.
The fix was cumbersome, and I'm not entirely pleased with it,
so I plan to revisit this design in the future when I'm not
pressed to get the bots green again. For now, this fixes
the issue by storing the context information by value instead
of by reference, and introduces some impossibly-confusing
template magic to make things "work".
llvm-svn: 301999
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Previously we wrote line information and file checksum
information, but we did not write information about inlinee
lines and functions. This patch adds support for that.
llvm-svn: 301936
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Differential Revision: https://reviews.llvm.org/D32716
llvm-svn: 301882
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In preparation for introducing writing capabilities for each of
these classes, I would like to adopt a Foo / FooRef naming
convention, where Foo indicates that the class can manipulate and
serialize Foos, and FooRef indicates that it is an immutable view of
an existing Foo. In other words, Foo is a writer and FooRef is a
reader. This patch names some existing readers to conform to the
FooRef convention, while offering no functional change.
llvm-svn: 301810
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Previously parsing of these were all grouped together into a
single master class that could parse any type of debug info
fragment.
With writing forthcoming, the complexity of each individual
fragment is enough to warrant them having their own classes so
that reading and writing of each fragment type can be grouped
together, but isolated from the code for reading and writing
other fragment types.
In doing so, I found a place where parsing code was duplicated
for the FileChecksums fragment, across llvm-readobj and the
CodeView library, and one of the implementations had a bug.
Now that the codepaths are merged, the bug is resolved.
Differential Revision: https://reviews.llvm.org/D32547
llvm-svn: 301557
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