Hi Rich,

I’m trying to compile a test C++11 file using ellcc-x86_64-linux-2014-Feb-25-15-13-13.tgz and have encountered a few problems. The file is

#include <functional>
#include <iostream>
#include <string>
int main(int argc, char **argv){
    std::string test;
    test += "Hello World!";
    std::cout << test << std::endl;
    auto lambda = [&](const std::string &in) -> void {
        std::cout << "Text was: " << in << std::endl;
        return;
    };
    lambda("extra text.");
    return 0;
}

I’ve unpacked ellcc into /tmp/ and run

./bin/ecc++ --std=c++11 -stdlib=libc++ -nobuiltininc -nostdinc -nostdinc++ -D__ELLCC__ -I./libecc/include/linux/ -I./libecc/include/c++/ -I./libecc/include/ -I./libecc/include/x86_64/linux/ -L./libecc/lib/x86_64/linux/ Test.cc -o test -v -Wl,-v

which spits out

guy@machine:/tmp# ./bin/ecc++ --std=c++11 -stdlib=libc++ -nobuiltininc -nostdinc -nostdinc++ -D__ELLCC__ -I./libecc/include/linux/ -I./libecc/include/c++/ -I./libecc/include/ -I./libecc/include/x86_64/linux/ -L./libecc/lib/x86_64/linux/ Test.cc -o test -v -Wl,-v
clang version 3.5 (trunk)
Target: x86_64-unknown-linux-gnu
Thread model: posix
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.4
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.4.4
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.4.5
Found candidate GCC installation: /usr/lib64/gcc/x86_64-linux-gnu/4.4
Found candidate GCC installation: /usr/lib64/gcc/x86_64-linux-gnu/4.4.4
Found candidate GCC installation: /usr/lib64/gcc/x86_64-linux-gnu/4.4.5
Selected GCC installation: /usr/lib64/gcc/x86_64-linux-gnu/4.4
ecc: warning: argument unused during compilation: '-nobuiltininc'
 "/tmp/bin/ecc" -cc1 -triple x86_64-unknown-linux-gnu -emit-obj -mrelax-all -disable-free -main-file-name Test.cc -mrelocation-model static -mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -target-cpu x86-64 -target-linker-version 2.23.2 -v -nostdsysteminc -nobuiltininc -resource-dir /tmp/bin/../libecc -D __ELLCC__ -I ./libecc/include/linux/ -I ./libecc/include/c++/ -I ./libecc/include/ -I ./libecc/include/x86_64/linux/ --std=c++11 -fdeprecated-macro -fdebug-compilation-dir /tmp -ferror-limit 19 -fmessage-length 226 -mstackrealign -fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option -vectorize-slp -o /tmp/Test-d19800.o -x c++ Test.cc
clang -cc1 version 3.5 based upon LLVM 3.5svn default target x86_64-unknown-linux-gnu
#include "..." search starts here:
#include <...> search starts here:
 ./libecc/include/linux
 ./libecc/include/c++
 ./libecc/include
 ./libecc/include/x86_64/linux
End of search list.
 "/usr/bin/ld" --hash-style=both --build-id --eh-frame-hdr -m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 -o test /usr/lib64/gcc/x86_64-linux-gnu/4.4/../../../../lib64/crt1.o /usr/lib64/gcc/x86_64-linux-gnu/4.4/../../../../lib64/crti.o /usr/lib64/gcc/x86_64-linux-gnu/4.4/crtbegin.o -L./libecc/lib/x86_64/linux/ -L/usr/lib64/gcc/x86_64-linux-gnu/4.4 -L/usr/lib64/gcc/x86_64-linux-gnu/4.4/../../../../lib64 -L/lib/../lib64 -L/usr/lib/../lib64 -L/usr/lib64/gcc/x86_64-linux-gnu/4.4/../../.. -L/lib -L/usr/lib /tmp/Test-d19800.o -v -lc++ -lm -lgcc_s -lgcc -lc -lgcc_s -lgcc /usr/lib64/gcc/x86_64-linux-gnu/4.4/crtend.o /usr/lib64/gcc/x86_64-linux-gnu/4.4/../../../../lib64/crtn.o
GNU ld (GNU Binutils for Debian) 2.20.1-system.20100303
/usr/lib64/gcc/x86_64-linux-gnu/4.4/../../../../lib64/crt1.o: In function "_start":
(.text+0x12): undefined reference to "__libc_csu_fini"
/usr/lib64/gcc/x86_64-linux-gnu/4.4/../../../../lib64/crt1.o: In function "_start":
(.text+0x19): undefined reference to "__libc_csu_init"
ecc: error: linker command failed with exit code 1 (use -v to see invocation)

I suspect the issue is that the system linker is being called, so I tried dumping LLVM byte code (ala ) but ecc-ld (painfully) complains with

./bin/ecc-ld: cannot find -: No such file or directory

Clang supposedly cannot simply be told which linker to use.

—

It is possibly relevant that I had to define __ELLCC__ to get around strtoull_l symbol not being defined. (Comments in the source lead me to believe you’re aware of that…)

Do you have any suggestions here?