Introduce a new demangling function that supports symbols using Itanium
mangling and Rust v0 mangling, and is expected in the near future to
include support for D mangling as well.
Unlike llvm::demangle, the function does not accept extra underscore
decoration. The callers generally know exactly when symbols should
include the extra decoration and so they should be responsible for
stripping it.
Functionally the only intended change is to allow demangling Rust
symbols with an extra underscore decoration through llvm::demangle,
which matches the existing behaviour for Itanium symbols.
Reviewed By: dblaikie, jhenderson
Part of https://reviews.llvm.org/D110664
The llvm::demangle is currently used by llvm-objdump and llvm-readobj,
so this effectively adds support for Rust v0 mangling to those
applications.
Reviewed By: dblaikie
Differential Revision: https://reviews.llvm.org/D104340
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
This is a follow-up to r351448. It adds support for other _*Z extensions
of the Itanium demanling, to the newly available demangle function
heuristic.
Reviewed by: erik.pilkington, rupprecht, grimar
Differential Revision: https://reviews.llvm.org/D56855
llvm-svn: 351551
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
Tomasz Miąsko