[libunwind] r353208 - [CMake] Support compiler-rt builtins library in tests

Petr Hosek via cfe-commits cfe-commits at lists.llvm.org
Tue Feb 5 11:50:48 PST 2019

Author: phosek
Date: Tue Feb  5 11:50:47 2019
New Revision: 353208

URL: http://llvm.org/viewvc/llvm-project?rev=353208&view=rev
[CMake] Support compiler-rt builtins library in tests

We're building tests with -nostdlib which means that we need to
explicitly include the builtins library. When using libgcc (default)
we can simply include -lgcc_s on the link line, but when using
compiler-rt builtins we need a complete path to the builtins library.

This path is already available in CMake as <PROJECT>_BUILTINS_LIBRARY,
so we just need to pass that path to lit and if config.compiler_rt is
true, link it to the test.

Prior to this patch, running tests when compiler-rt is being used as
the builtins library was broken as all tests would fail to link, but
with this change running tests when compiler-rt bultins library is
being used should be supported.

Differential Revision: https://reviews.llvm.org/D56701


Modified: libunwind/trunk/test/lit.site.cfg.in
URL: http://llvm.org/viewvc/llvm-project/libunwind/trunk/test/lit.site.cfg.in?rev=353208&r1=353207&r2=353208&view=diff
--- libunwind/trunk/test/lit.site.cfg.in (original)
+++ libunwind/trunk/test/lit.site.cfg.in Tue Feb  5 11:50:47 2019
@@ -8,7 +8,7 @@ config.libcxx_src_root          = "@LIBU
 config.libunwind_headers        = "@LIBUNWIND_SOURCE_DIR@/include"
 config.cxx_library_root         = "@LIBUNWIND_LIBCXX_LIBRARY_PATH@"
 config.llvm_unwinder            = True
-config.compiler_rt              = @LIBUNWIND_USE_COMPILER_RT@
+config.builtins_library         = "@LIBUNWIND_BUILTINS_LIBRARY@"
 config.enable_threads           = @LIBUNWIND_ENABLE_THREADS@
 config.use_sanitizer            = "@LLVM_USE_SANITIZER@"
 config.enable_32bit             = @LIBUNWIND_BUILD_32_BITS@

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