[libcxx-commits] [libcxx] [libc++abi][test][VE] Add '-ldl' to support VE (PR #66605)

[Kazushi Marukawa via libcxx-commits]

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@@ -0,0 +1,28 @@
+# This testing configuration handles running the test suite against LLVM's
+# libc++ for VE using a shared library.
+
+lit_config.load_config(config, '@CMAKE_CURRENT_BINARY_DIR@/cmake-bridge.cfg')
+
+config.substitutions.append(('%{flags}',
+    '-pthread' + (' -isysroot {}'.format('@CMAKE_OSX_SYSROOT@') if '@CMAKE_OSX_SYSROOT@' else '')
+))
+config.substitutions.append(('%{compile_flags}',
+    '-nostdinc++ -I %{include} -I %{target-include} -I %{libcxx}/test/support'
+))
+# VE requires libdl library.
+config.substitutions.append(('%{link_flags}',
+    '-nostdlib++ -L %{lib} -Wl,-rpath,%{lib} -lc++ -ldl'
----------------
kaz7 wrote:

In general, yes.  However, libcxx and libcxxabi want to link test programs under `-nostdlib++` option.  This avoid automatic linking.  Therefore we all need to specify all libraries like not only `-ldl` but also `-lc++`.

https://github.com/llvm/llvm-project/pull/66605