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10add60748
Summary:
Three closely related changes, to have a mode in which we link all
executables and shared libraries against libLLVM.
1. Add a new LLVM_LINK_LLVM_DYLIB cmake option, which, when ON, will link
executables and shared libraries against libLLVM. For this to work, it
is necessary to also set LLVM_BUILD_LLVM_DYLIB and LLVM_DYLIB_EXPORT_ALL.
It is not strictly necessary to set LLVM_DISABLE_LLVM_DYLIB_ATEXIT, but
we also default to OFF in this mode, or tools tend to misbehave (e.g.
stdout may not flush on exit when output is buffered.)
llvm-config and Tablegen do not use libLLVM, as they are dependencies of
libLLVM.
2. Modify llvm-go to take a new flag, "linkmode=component-libs|dylib".
Depending on which one is passed (default is component-libs), we link
with the individual libraries or libLLVM respectively. We pass in dylib
when LLVM_LINK_LLVM_DYLIB is ON.
3. Fix LLVM_DYLIB_EXPORT_ALL on Linux, and expand the symbols exported to
actually export all. Don't strip leading underscore from symbols on Linux,
and make sure we get all exported symbols and weak-with-default symbols
("W" in nm output). Without these changes, passes won't load because
the "Annotate..." symbols defined in lib/Support/Valigrind.cpp are not
found.
Testing:
- Ran default build ("ninja") with LLVM, clang, compiler-rt, llgo, lldb.
- Ran "check", "check-clang", "check-tsan", "check-libgo" targets. I've
never had much success with LLDB tests, and llgoi is currently broken
so check-llgo fails for an unrelated reason.
- Ran "lldb" to ensure it loads.
Reviewers: chandlerc, beanz, pcc, rnk
Subscribers: rnk, chapuni, sylvestre.ledru, llvm-commits
Differential Revision: http://reviews.llvm.org/D12488
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246527 91177308-0d34-0410-b5e6-96231b3b80d8
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| .. | ||
| bugpoint | ||
| bugpoint-passes | ||
| dsymutil | ||
| gold | ||
| llc | ||
| lli | ||
| llvm-ar | ||
| llvm-as | ||
| llvm-as-fuzzer | ||
| llvm-bcanalyzer | ||
| llvm-c-test | ||
| llvm-config | ||
| llvm-cov | ||
| llvm-cxxdump | ||
| llvm-diff | ||
| llvm-dis | ||
| llvm-dwarfdump | ||
| llvm-extract | ||
| llvm-go | ||
| llvm-jitlistener | ||
| llvm-link | ||
| llvm-lto | ||
| llvm-mc | ||
| llvm-mcmarkup | ||
| llvm-nm | ||
| llvm-objdump | ||
| llvm-pdbdump | ||
| llvm-profdata | ||
| llvm-readobj | ||
| llvm-rtdyld | ||
| llvm-shlib | ||
| llvm-size | ||
| llvm-split | ||
| llvm-stress | ||
| llvm-symbolizer | ||
| lto | ||
| macho-dump | ||
| msbuild | ||
| obj2yaml | ||
| opt | ||
| verify-uselistorder | ||
| yaml2obj | ||
| CMakeLists.txt | ||
| LLVMBuild.txt | ||
| Makefile | ||