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This patch improves the MCJIT runtime dynamic loader by adding new handling

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of zero-initialized sections, virtual sections and common symbols
and preventing the loading of sections which are not required for
execution such as debug information.

Patch by Andy Kaylor!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154610 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Preston Gurd
2012-04-12 20:13:57 +00:00
parent f0bcecc0d5
commit c68dda815e
28 changed files with 319 additions and 80 deletions
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6
lib/ExecutionEngine/MCJIT/MCJIT.cpp
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@@ -74,9 +74,9 @@ MCJIT::MCJIT(Module *m, TargetMachine *tm, TargetJITInfo &tji,
OS.flush();
// Load the object into the dynamic linker.
// FIXME: It would be nice to avoid making yet another copy.
MemoryBuffer *MB = MemoryBuffer::getMemBufferCopy(StringRef(Buffer.data(),
Buffer.size()));
MemoryBuffer *MB = MemoryBuffer::getMemBuffer(StringRef(Buffer.data(),
Buffer.size()),
"", false);
if (Dyld.loadObject(MB))
report_fatal_error(Dyld.getErrorString());
// Resolve any relocations.