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Bug 1150985
| Summary: | Clang does not work; looks for include and lib in a wrong place | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | David Abdurachmanov <david.abdurachmanov> |
| Component: | llvm | Assignee: | Peter Robinson <pbrobinson> |
| Status: | CLOSED RAWHIDE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 21 | CC: | ajax, bos, david.abdurachmanov, dmalcolm, jv+fedora, mjuszkie, pbrobinson, petersen, scottt.tw, zbyszek |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | aarch64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2015-09-16 13:48:00 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 922257 | ||
I'm aware of some of these issues. We're awaiting 3.5 to land because there's been some massive improvements and changes for aarch64 in that release.
> Clang fails with:
>
> "/usr/bin/ld" --hash-style=gnu --no-add-needed --build-id --eh-frame-hdr -m
> aarch64linux -dynamic-linker /lib/ld-linux-aarch64.so.1 -o a.out
> /lib/../lib64/crt1.o /lib/../lib64/crti.o crtbegin.o -L/lib/../lib64
> -L/usr/lib/../lib64 -L/lib -L/usr/lib /tmp/test-0ff054.o -lstdc++ -lm
> -lgcc_s -lgcc -lc -lgcc_s -lgcc crtend.o /lib/../lib64/crtn.o
> /usr/bin/ld: cannot find crtbegin.o: No such file or directory
> /usr/bin/ld: cannot find -lstdc++
> /usr/bin/ld: cannot find -lgcc_s
> /usr/bin/ld: cannot find -lgcc
> clang: error: linker command failed with exit code 1 (use -v to see
> invocation)
>
> While on x86_64 it has /usr/bin/../lib/gcc/x86_64-redhat-linux/4.8.2
What release are you using? F-21 has gcc 4.9.x not 4.8.x
I am still running F19 with Clang 3.4 on the boards, but hrw (IRC) double checked it on F21. (In reply to David Abdurachmanov from comment #3) > I am still running F19 with Clang 3.4 on the boards, but hrw (IRC) double > checked it on F21. F-19 isn't supported. Please move to F-21. There are numerous toolchain issues and changes between the two. 15:28 hrw@pinkiepie-rawhide:devel$ clang++ --verbose hello.cc clang version 3.6.2 (tags/RELEASE_362/final) Target: aarch64-redhat-linux-gnu Thread model: posix Found candidate GCC installation: /bin/../lib/gcc/aarch64-redhat-linux/5.2.1 Found candidate GCC installation: /usr/lib/gcc/aarch64-redhat-linux/5.2.1 Selected GCC installation: /bin/../lib/gcc/aarch64-redhat-linux/5.2.1 Candidate multilib: .;@m64 Selected multilib: .;@m64 "/usr/bin/clang" -cc1 -triple aarch64-redhat-linux-gnu -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -main-file-name hello.cc -mrelocation-m odel static -mthread-model posix -mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases -fuse-init-array -target-cpu generic -target-feature + neon -target-abi aapcs -target-linker-version 2.25 -v -dwarf-column-info -resource-dir /usr/bin/../lib/clang/3.6.2 -internal-isystem /bin/../lib/gcc/aarch 64-redhat-linux/5.2.1/../../../../include/c++/5.2.1 -internal-isystem /bin/../lib/gcc/aarch64-redhat-linux/5.2.1/../../../../include/c++/5.2.1/aarch64-red hat-linux -internal-isystem /bin/../lib/gcc/aarch64-redhat-linux/5.2.1/../../../../include/c++/5.2.1/backward -internal-isystem /usr/local/include -intern al-isystem /usr/bin/../lib/clang/3.6.2/include -internal-externc-isystem /usr/include -internal-externc-isystem /usr/lib/gcc/aarch64-redhat-linux/5.1.1/in clude -fdeprecated-macro -fdebug-compilation-dir /home/hrw/devel -ferror-limit 19 -fmessage-length 154 -mstackrealign -fallow-half-arguments-and-returns - fno-signed-char -fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option -fcolor-diagnostics -o /tmp/hello-409df4.o -x c++ hello.cc clang -cc1 version 3.6.2 based upon LLVM 3.6.2 default target aarch64-redhat-linux-gnu ignoring nonexistent directory "/usr/lib/gcc/aarch64-redhat-linux/5.1.1/include" #include "..." search starts here: #include <...> search starts here: /bin/../lib/gcc/aarch64-redhat-linux/5.2.1/../../../../include/c++/5.2.1 /bin/../lib/gcc/aarch64-redhat-linux/5.2.1/../../../../include/c++/5.2.1/aarch64-redhat-linux /bin/../lib/gcc/aarch64-redhat-linux/5.2.1/../../../../include/c++/5.2.1/backward /usr/local/include /usr/bin/../lib/clang/3.6.2/include /usr/include End of search list. version rawhide has it sorted out then it crashes - bug 1227460 |
Description of problem: Clang looks for headers and libraries in a wrong place on AArch64. $ clang++ -std=c++11 tc.cc tt.cc:1:10: fatal error: 'list' file not found #include <list> ^ 1 error generated. How reproducible: Compile any C++ code, e.g., example from en.cppreference.com cat << EOF > tc.cc #include <list> #include <string> #include <iostream> template<typename T> std::ostream& operator<<(std::ostream& s, const std::list<T>& v) { s.put('['); char comma[3] = {'\0', ' ', '\0'}; for (const auto& e : v) { s << comma << e; comma[0] = ','; } return s << ']'; } int main() { // c++11 initializer list syntax: std::list<std::string> words1 {"the", "frogurt", "is", "also", "cursed"}; std::cout << "words1: " << words1 << '\n'; // words2 == words1 std::list<std::string> words2(words1.begin(), words1.end()); std::cout << "words2: " << words2 << '\n'; // words3 == words1 std::list<std::string> words3(words1); std::cout << "words3: " << words3 << '\n'; // words4 is {"Mo", "Mo", "Mo", "Mo", "Mo"} std::list<std::string> words4(5, "Mo"); std::cout << "words4: " << words4 << '\n'; } EOF clang++ -std=c++11 tc.cc The libraries are installed at /usr/lib/gcc/aarch64-redhat-linux/4.8.1/ When I was debugging Clang driver (on F19) on aarch64 and x86_64 it looked like driver never used GCC version in the paths. Thus is went for /usr/lib/gcc/aarch64-redhat-linux. For headers defaults: #include "..." search starts here: #include <...> search starts here: /usr/local/include /usr/bin/../lib/clang/3.4.1/include /usr/include /usr/lib/gcc/aarch64-redhat-linux/4.8.1/include End of search list. Missing /usr/include/c++/4.8.1 The followed is enough to test lib paths: int main(void) { return 0; } Clang fails with: "/usr/bin/ld" --hash-style=gnu --no-add-needed --build-id --eh-frame-hdr -m aarch64linux -dynamic-linker /lib/ld-linux-aarch64.so.1 -o a.out /lib/../lib64/crt1.o /lib/../lib64/crti.o crtbegin.o -L/lib/../lib64 -L/usr/lib/../lib64 -L/lib -L/usr/lib /tmp/test-0ff054.o -lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s -lgcc crtend.o /lib/../lib64/crtn.o /usr/bin/ld: cannot find crtbegin.o: No such file or directory /usr/bin/ld: cannot find -lstdc++ /usr/bin/ld: cannot find -lgcc_s /usr/bin/ld: cannot find -lgcc clang: error: linker command failed with exit code 1 (use -v to see invocation) While on x86_64 it has /usr/bin/../lib/gcc/x86_64-redhat-linux/4.8.2 Clang driver logic for finding the paths needs to be reviewed.