http://llvm.org/bugs/show_bug.cgi?id=15729
Bug ID: 15729
Summary: RuntimeDyld doesn't handle calls to external functions
from MachO objects
Product: libraries
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: Generic Execution Engine Support
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 10343
--> http://llvm.org/bugs/attachment.cgi?id=10343&action=edit
sample code to reproduce the problem
RuntimeDyld fails with an assertion when trying to perform relocations on
generated code that contains a call to an external function. The generated
code contains a relocation (which varies by architecture) that is not handled
by the RuntimeDyldMachO class.
Eran Weiss provided the attached sample code to reproduce the problem.
To reproduce:
$ /usr/bin/g++ `llvm-config --cxxflags` -g -m32 -c mcjit_external_symbol.cpp
$ /usr/bin/g++ `llvm-config --ldflags` -g -m32 -o mcjit_external_symbol
mcjit_external_symbol.o `llvm-config --libs all`
$ ./mcjit_external_symbol
verifying...
LLVM ERROR: Program used external function '_external' which could not be
resolved!
This same test case passes if the older JIT implementation is used.
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