https://llvm.org/bugs/show_bug.cgi?id=25446
Bug ID: 25446 Summary: lldb Python extension module is linked to libpython Product: lldb Version: unspecified Hardware: PC OS: MacOS X Status: NEW Severity: normal Priority: P Component: All Bugs Assignee: lldb-dev@lists.llvm.org Reporter: l...@tim-smith.us CC: llvm-b...@lists.llvm.org Classification: Unclassified Hi; I'm a maintainer of Homebrew, a package manager for OS X. We package and distribute LLVM. LLDB builds an import-able Python module which lands in lib/python2.7/site-packages/lldb/_lldb.so. When LLVM and LLDB are built using the cmake build (and possibly otherwise), this module is explicitly linked against a Python framework, and it should not be, because that prevents the module from being imported by a compatible interpreter located somewhere else on the system. An attempt to do so will result in segfaults. This is unnecessary and makes the module harder to distribute. The module should be built with -undefined dynamic_lookup instead of -lpython. Please see this blog post for more background: http://blog.tim-smith.us/2015/09/python-extension-modules-os-x/ Running otool -L against the module shows that it has an explicit link to a Python framework: tim@rocketman:~$ otool -L /usr/local/Cellar/llvm/3.6.2/lib/python2.7/site-packages/lldb/_lldb.so /usr/local/Cellar/llvm/3.6.2/lib/python2.7/site-packages/lldb/_lldb.so: ... /System/Library/Frameworks/Python.framework/Versions/2.7/Python (compatibility version 2.7.0, current version 2.7.10) Extension modules should not show this linkage. This Homebrew bug is related: https://github.com/Homebrew/homebrew/pull/45787 -- You are receiving this mail because: You are the assignee for the bug.
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