diff options
Diffstat (limited to 'external/meta-clang/recipes-devtools/clang/clang/0016-clang-Add-lpthread-and-ldl-along-with-lunwind-for-st.patch')
| -rw-r--r-- | external/meta-clang/recipes-devtools/clang/clang/0016-clang-Add-lpthread-and-ldl-along-with-lunwind-for-st.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/external/meta-clang/recipes-devtools/clang/clang/0016-clang-Add-lpthread-and-ldl-along-with-lunwind-for-st.patch b/external/meta-clang/recipes-devtools/clang/clang/0016-clang-Add-lpthread-and-ldl-along-with-lunwind-for-st.patch new file mode 100644 index 00000000..b77f4335 --- /dev/null +++ b/external/meta-clang/recipes-devtools/clang/clang/0016-clang-Add-lpthread-and-ldl-along-with-lunwind-for-st.patch @@ -0,0 +1,40 @@ +From a1fa38408f7524c8452709574b3d83b72ebcfa38 Mon Sep 17 00:00:00 2001 +From: Khem Raj <raj.khem@gmail.com> +Date: Wed, 31 Jul 2019 22:51:39 -0700 +Subject: [PATCH] clang: Add -lpthread and -ldl along with -lunwind for static + linking + +When doing static liking with --unwindlib=libunwind -static we encounter +undefined symbols +libunwind/src/RWMutex.hpp:68: undefined reference to `pthread_rwlock_wrlock' + +and + +libunwind/src/AddressSpace.hpp:597: undefined reference to `dladdr' + +therefore we need to link in libpthread and libdl to fill these symbols + +Signed-off-by: Khem Raj <raj.khem@gmail.com> +--- + clang/lib/Driver/ToolChains/CommonArgs.cpp | 7 ++++++- + 1 file changed, 6 insertions(+), 1 deletion(-) + +diff --git a/clang/lib/Driver/ToolChains/CommonArgs.cpp b/clang/lib/Driver/ToolChains/CommonArgs.cpp +index 37ec7346857..c849b2242e9 100644 +--- a/clang/lib/Driver/ToolChains/CommonArgs.cpp ++++ b/clang/lib/Driver/ToolChains/CommonArgs.cpp +@@ -1211,8 +1211,13 @@ static void AddUnwindLibrary(const ToolChain &TC, const Driver &D, + case ToolChain::UNW_CompilerRT: + if (LGT == LibGccType::StaticLibGcc) + CmdArgs.push_back("-l:libunwind.a"); +- else ++ else { + CmdArgs.push_back("-l:libunwind.so"); ++ if (Args.hasArg(options::OPT_static)) { ++ CmdArgs.push_back("-lpthread"); ++ CmdArgs.push_back("-ldl"); ++ } ++ } + break; + } + |