MSVC 2012 cannot infer any move special members, but it will call them
if available. MSVC 2013 cannot infer move assignment. Therefore,
explicitly implement the special members for the ExecutionContext class
and its contained types.
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More methods to follow.
Using StringRef allows us the EE interface to work with more string types
without forcing construction of std::strings.
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A "stub found found" diagnostic is emitted when RuntimeDyldChecker's stub lookup
logic fails to find the requested stub. The obvious reason for the failure is
that no such stub has been created, but it can also fail for internal symbols if
the symbol offset is not computed correctly (E.g. due to a mangled relocation
addend). This patch adds a comment about the latter case so that it's not
overlooked.
Inspired by confusion experienced during test case construction for r217635.
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With this a DataLayoutPass can be reused for multiple modules.
Once we have doInitialization/doFinalization, it doesn't seem necessary to pass
a Module to the constructor.
Overall this change seems in line with the idea of making DataLayout a required
part of Module. With it the only way of having a DataLayout used is to add it
to the Module.
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field of RelocationValueRef, rather than the 'Addend' field.
This is consistent with RuntimeDyldELF's use of RelocationValueRef, and more
consistent with the semantics of the data being stored (the offset from the
start of a section or symbol).
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The finalizeObject method calls generateCodeForModule on each of the currently
'added' objects, but generateCodeForModule moves objects out of the 'added'
set as it's called. To avoid iterator invalidation issues, the added set is
copied out before any calls to generateCodeForModule.
This should fix http://llvm.org/PR20851 .
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Fixes:
CMake Warning (dev) at lib/ExecutionEngine/Interpreter/CMakeLists.txt:16 (target_link_libraries):
Policy CMP0023 is not set: Plain and keyword target_link_libraries
signatures cannot be mixed. Run "cmake --help-policy CMP0023" for policy
details. Use the cmake_policy command to set the policy and suppress this
warning.
The keyword signature for target_link_libraries has already been used with
the target "LLVMInterpreter". All uses of target_link_libraries with a
target should be either all-keyword or all-plain.
The uses of the keyword signature are here:
* cmake/modules/AddLLVM.cmake:345 (target_link_libraries)
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
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sections.
This allows fine-grained control of the memory layout of hypothetical target
processes for testing purposes.
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I'm not sure this is a particularly helpful API (to pass ownership and
then return it unconditionally) rather than just pass the underlying
object by non-const reference, but this was the original API so I'll
just make it more safe/stable and anyone else is free to adjust that at
their whim, of course.
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JITEventListener. This used to be in the old JIT (last line of the file)
and everyone just "happened" to pick it up from there. =/ Doh.
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The syntax of the new builtin is 'section_addr(<filename>, <section-name>)'
(similar to the stub_addr builtin, but without a symbol name). It returns the
base address of the given section in the given object file. This builtin makes
it possible to refer to the contents of sections that cannot contain symbols,
e.g. sections added by the linker itself, like __eh_frame.
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Approved by Jim Grosbach, Lang Hames, Rafael Espindola.
This reinstates commits r215111, 215115, 215116, 215117, 215136.
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RuntimeDyldImpl.
These are platform independent, and moving them to the base class allows
RuntimeDyldChecker to use them too.
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Summary:
Introduce support::ulittleX_t::ref type to Support/Endian.h and use it in x86 JIT
to enforce correct endianness and fix unaligned accesses.
Test Plan: regression test suite
Reviewers: lhames
Subscribers: ributzka, llvm-commits
Differential Revision: http://reviews.llvm.org/D5011
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Long term the idea if for the engine to not own the buffers, but for now
this is consistent with the rest of the API.
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The expressions 'Reloc.Addend - Addend' and 'Reloc.Offset' should always be
equal in this context. The latter is prefered - we want to remove the
RelocationValueRef::Addend field in the future.
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Based on the STL class of the same name, it guards a mutex
while also allowing it to be unlocked conditionally before
destruction.
This eliminates the last naked usages of mutexes in LLVM and
clang.
It also uncovered and fixed a bug in callExternalFunction()
when compiled without USE_LIBFFI, where the mutex would never
be unlocked if the end of the function was reached.
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