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This corresponds to commonly used options to UnDecorateSymbolName
within llvm.
Add them as hidden options in llvm-undname. MS undname.exe takes
numeric flags, corresponding to the UNDNAME_* constants, but instead
of hardcoding in mappings for those numbers, just add textual
options instead, as it the use of them here is primarily intended
for testing.
Differential Revision: https://reviews.llvm.org/D68917
llvm-svn: 374865
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The default handling splits input into lines. Since
llvm-microsoft-demangle-fuzzer doesn't do this, oss-fuzz produces inputs
that only trigger crashes if the input isn't split into lines. This adds
a hidden flag -raw-file which passes file contents to microsoftDemangle() in
the same way the fuzzer does, for reproducing oss-fuzz reports.
Also change llvm-undname to have a non-0 exit code for invalid symbols.
Differential Revision: https://reviews.llvm.org/D60771
llvm-svn: 358485
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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
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This allows it to be used in an upcoming llvm-readobj change.
A small change in internal behaviour of the function is to always call
the microsoftDemangle function if the string does not have an itanium
encoding prefix, rather than only if it starts with '?'. This is
harmless because the microsoftDemangle function does the same check
already.
Reviewed by: grimar, erik.pilkington
Differential Revision: https://reviews.llvm.org/D56721
llvm-svn: 351448
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Use helpers from Support/WithError.h to print errors.
llvm-svn: 346622
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This is useful for understanding how our demangler processes
back references and for investigating issues related to
back references. But it's a feature only useful for debugging
the demangling process itself, so I'm marking it hidden.
llvm-svn: 338609
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If an error occurs and we write it to stderr, it could appear
before we wrote the mangled name which we're undecorating.
By flushing stdout first, we ensure that the messages are always
sequenced in the correct order.
llvm-svn: 337645
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llvm-svn: 337615
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This adds initial support for a demangling library (LLVMDemangle)
and tool (llvm-undname) for demangling Microsoft names. This
doesn't cover 100% of cases and there are some known limitations
which I intend to address in followup patches, at least until such
time that we have (near) 100% test coverage matching up with all
of the test cases in clang/test/CodeGenCXX/mangle-ms-*.
Differential Revision: https://reviews.llvm.org/D49552
llvm-svn: 337584
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