[MacPorts] #38528: clang-3.3 @3.3-r173279 can't link a C++ program with -fsanitize=thread
MacPorts
noreply at macports.org
Mon Mar 25 08:27:51 PDT 2013
#38528: clang-3.3 @3.3-r173279 can't link a C++ program with -fsanitize=thread
-------------------------------+--------------------------------
Reporter: andrew.c.morrow@… | Owner: macports-tickets@…
Type: defect | Status: new
Priority: Normal | Milestone:
Component: ports | Version: 2.1.3
Keywords: | Port: clang-3.3
-------------------------------+--------------------------------
I'm using clang-3.3 @3.3-r173279 on OS X 10.8.3:
{{{
> /opt/local/bin/clang++-mp-3.3 --version
clang version 3.3 (trunk 173279)
Target: x86_64-apple-darwin12.3.0
Thread model: posix
}}}
Given a simple program, I'd like to build it with ThreadSanitizer by
passing -fsanitize=thread, but the link step fails:
{{{
> cat ./hello_world.cpp
#include <cstdlib>
#include <iostream>
int main(int argc, char* argv[]) {
std::cout << "Hello, World!\n";
return EXIT_SUCCESS;
}
> /opt/local/bin/clang++-mp-3.3 ./hello_world.cpp -fsanitize=thread -o
./hello_world
Undefined symbols for architecture x86_64:
"___tsan_func_entry", referenced from:
_main in hello_world-RhjEoO.o
___cxx_global_var_init in hello_world-RhjEoO.o
__GLOBAL__I_a in hello_world-RhjEoO.o
"___tsan_func_exit", referenced from:
_main in hello_world-RhjEoO.o
___cxx_global_var_init in hello_world-RhjEoO.o
__GLOBAL__I_a in hello_world-RhjEoO.o
"___tsan_init", referenced from:
anon in hello_world-RhjEoO.o
"___tsan_write4", referenced from:
_main in hello_world-RhjEoO.o
"___tsan_write8", referenced from:
_main in hello_world-RhjEoO.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see
invocation)
}}}
Here is a -### dump of the link line:
{{{
> /opt/local/bin/clang++-mp-3.3 ./hello_world.cpp -fsanitize=thread -o
./hello_world -###
clang version 3.3 (trunk 173279)
Target: x86_64-apple-darwin12.3.0
Thread model: posix
"/opt/local/libexec/llvm-3.3/bin/clang" "-cc1" "-triple" "x86_64-apple-
macosx10.8.0" "-emit-obj" "-mrelax-all" "-disable-free" "-main-file-name"
"hello_world.cpp" "-mrelocation-model" "pic" "-pic-level" "2" "-mdisable-
fp-elim" "-masm-verbose" "-munwind-tables" "-target-cpu" "core2" "-target-
linker-version" "134.9" "-resource-dir"
"/opt/local/libexec/llvm-3.3/bin/../lib/clang/3.3" "-fmodule-cache-path"
"/var/folders/n4/y_lrzpxd3n99l4frqx4m8llw0000gt/T/clang-module-cache"
"-fdeprecated-macro" "-fdebug-compilation-dir"
"/Users/andrew/Documents/10gen/dev/src/experiments/hello_world" "-ferror-
limit" "19" "-fmessage-length" "167" "-fsanitize=thread" "-stack-
protector" "1" "-mstackrealign" "-fblocks" "-fobjc-runtime=macosx-10.8.0"
"-fobjc-dispatch-method=mixed" "-fobjc-default-synthesize-properties"
"-fencode-extended-block-signature" "-fcxx-exceptions" "-fexceptions"
"-fdiagnostics-show-option" "-fcolor-diagnostics" "-backend-option"
"-vectorize-loops" "-o" "/var/folders/n4/y_lrzpxd3n99l4frqx4m8llw0000gt/T
/hello_world-FGj5NL.o" "-x" "c++" "./hello_world.cpp"
"/opt/local/libexec/llvm-3.3/bin/ld" "-demangle" "-dynamic" "-arch"
"x86_64" "-macosx_version_min" "10.8.0" "-o" "./hello_world"
"/var/folders/n4/y_lrzpxd3n99l4frqx4m8llw0000gt/T/hello_world-FGj5NL.o"
"-lstdc++" "-lSystem"
"/opt/local/libexec/llvm-3.3/bin/../lib/clang/3.3/lib/darwin/libclang_rt.osx.a"
}}}
Ideally, clang-3.3 would support ThreadSanitizer out of the box.
--
Ticket URL: <https://trac.macports.org/ticket/38528>
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