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Bug 1749971
| Summary: | On x86_64, clang detects the wrong gcc directory | |||
|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Hans Ulrich Niedermann <rhbugs> | |
| Component: | clang | Assignee: | Tom Stellard <tstellar> | |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | |
| Severity: | unspecified | Docs Contact: | ||
| Priority: | unspecified | |||
| Version: | 30 | CC: | airlied, sbergman, sguelton, siddharth.kde, tstellar | |
| Target Milestone: | --- | |||
| Target Release: | --- | |||
| Hardware: | x86_64 | |||
| OS: | Linux | |||
| Whiteboard: | ||||
| Fixed In Version: | clang-8.0.0-3.fc30 | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 1824365 (view as bug list) | Environment: | ||
| Last Closed: | 2019-10-04 21:24:09 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: | ||||
Pull request: https://src.fedoraproject.org/rpms/clang/pull-request/40 FEDORA-2019-30920cc6e1 has been submitted as an update to Fedora 30. https://bodhi.fedoraproject.org/updates/FEDORA-2019-30920cc6e1 clang-8.0.0-3.fc30, llvm-test-suite-8.0.0-3.fc30 has been pushed to the Fedora 30 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2019-30920cc6e1 clang-8.0.0-3.fc30, llvm-test-suite-8.0.0-3.fc30 has been pushed to the Fedora 30 stable repository. If problems still persist, please make note of it in this bug report. |
Description of problem: When clang is supposed to natively link a C program, it picks the gcc installation in /usr/lib/gcc/x86_64-linux-gnu/9 instead of the one in /usr/lib/gcc/x86_64-redhat-linux/9 and fails with "/usr/bin/ld: cannot find -lgcc_s" instead of producing a native executable. Version-Release number of selected component (if applicable): clang-8.0.0-1.fc30.x86_64 with the following two packages installed gcc-9.2.1-1.fc30.x86_64 gcc-x86_64-linux-gnu-9.1.1-1.fc30.x86_64 How reproducible: 100% Steps to Reproduce: 1. dnf -y install clang 2. clang -o basic-main basic-main.c # this works 3. dnf -y install gcc-x86_64-linux-gnu 4. clang -o basic-main basic-main.c # this fails Actual results: /usr/bin/ld: cannot find -lgcc_s clang-8: error: linker command failed with exit code 1 (use -v to see invocation) Expected results: No error message, and an executable file to run natively. Additional info: ### The basic C code example file basic-main.c ### #include <stdio.h> int main(void) { printf("basic main program\n"); return 0; } ### The error case with "clang -v -o basic-main basic-main.c" ### clang version 8.0.0 (Fedora 8.0.0-1.fc30) Target: x86_64-unknown-linux-gnu Thread model: posix InstalledDir: /usr/bin Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/9 Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-redhat-linux/9 Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/9 Found candidate GCC installation: /usr/lib/gcc/x86_64-redhat-linux/9 Selected GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/9 Candidate multilib: .;@m64 Candidate multilib: 32;@m32 Selected multilib: .;@m64 "/usr/bin/clang-8" -cc1 -triple x86_64-unknown-linux-gnu -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -discard-value-names -main-file-name basic-main.c -mrelocation-model static -mthread-model posix -mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb -v -resource-dir /usr/lib64/clang/8.0.0 -internal-isystem /usr/local/include -internal-isystem /usr/lib64/clang/8.0.0/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -fdebug-compilation-dir /home/ndim/clang-and-gcc-bug -ferror-limit 19 -fmessage-length 118 -fobjc-runtime=gcc -fdiagnostics-show-option -fcolor-diagnostics -o /tmp/basic-main-606e4c.o -x c basic-main.c -faddrsig clang -cc1 version 8.0.0 based upon LLVM 8.0.0 default target x86_64-unknown-linux-gnu ignoring nonexistent directory "/include" #include "..." search starts here: #include <...> search starts here: /usr/local/include /usr/lib64/clang/8.0.0/include /usr/include End of search list. "/usr/bin/ld" --hash-style=gnu --no-add-needed --build-id --eh-frame-hdr -m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 -o basic-main /usr/bin/../lib/gcc/x86_64-linux-gnu/9/../../../../lib64/crt1.o /usr/bin/../lib/gcc/x86_64-linux-gnu/9/../../../../lib64/crti.o /usr/bin/../lib/gcc/x86_64-linux-gnu/9/crtbegin.o -L/usr/bin/../lib/gcc/x86_64-linux-gnu/9 -L/usr/bin/../lib/gcc/x86_64-linux-gnu/9/../../../../lib64 -L/usr/bin/../lib64 -L/lib/../lib64 -L/usr/lib/../lib64 -L/usr/bin/../lib/gcc/x86_64-linux-gnu/9/../../.. -L/usr/bin/../lib -L/lib -L/usr/lib /tmp/basic-main-606e4c.o -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /usr/bin/../lib/gcc/x86_64-linux-gnu/9/crtend.o /usr/bin/../lib/gcc/x86_64-linux-gnu/9/../../../../lib64/crtn.o /usr/bin/ld: cannot find -lgcc_s clang-8: error: linker command failed with exit code 1 (use -v to see invocation) ### The success case with "clang -v -o basic-main basic-main.c" ### clang version 8.0.0 (Fedora 8.0.0-1.fc30) Target: x86_64-unknown-linux-gnu Thread model: posix InstalledDir: /usr/bin Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-redhat-linux/9 Found candidate GCC installation: /usr/lib/gcc/x86_64-redhat-linux/9 Selected GCC installation: /usr/bin/../lib/gcc/x86_64-redhat-linux/9 Candidate multilib: .;@m64 Candidate multilib: 32;@m32 Selected multilib: .;@m64 "/usr/bin/clang-8" -cc1 -triple x86_64-unknown-linux-gnu -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -discard-value-names -main-file-name basic-main.c -mrelocation-model static -mthread-model posix -mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb -v -resource-dir /usr/lib64/clang/8.0.0 -internal-isystem /usr/local/include -internal-isystem /usr/lib64/clang/8.0.0/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -fdebug-compilation-dir /home/ndim/clang-and-gcc-bug -ferror-limit 19 -fmessage-length 118 -fobjc-runtime=gcc -fdiagnostics-show-option -fcolor-diagnostics -o /tmp/basic-main-aabab6.o -x c basic-main.c -faddrsig clang -cc1 version 8.0.0 based upon LLVM 8.0.0 default target x86_64-unknown-linux-gnu ignoring nonexistent directory "/include" #include "..." search starts here: #include <...> search starts here: /usr/local/include /usr/lib64/clang/8.0.0/include /usr/include End of search list. "/usr/bin/ld" --hash-style=gnu --no-add-needed --build-id --eh-frame-hdr -m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 -o basic-main /usr/bin/../lib/gcc/x86_64-redhat-linux/9/../../../../lib64/crt1.o /usr/bin/../lib/gcc/x86_64-redhat-linux/9/../../../../lib64/crti.o /usr/bin/../lib/gcc/x86_64-redhat-linux/9/crtbegin.o -L/usr/bin/../lib/gcc/x86_64-redhat-linux/9 -L/usr/bin/../lib/gcc/x86_64-redhat-linux/9/../../../../lib64 -L/usr/bin/../lib64 -L/lib/../lib64 -L/usr/lib/../lib64 -L/usr/bin/../lib/gcc/x86_64-redhat-linux/9/../../.. -L/usr/bin/../lib -L/lib -L/usr/lib /tmp/basic-main-aabab6.o -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /usr/bin/../lib/gcc/x86_64-redhat-linux/9/crtend.o /usr/bin/../lib/gcc/x86_64-redhat-linux/9/../../../../lib64/crtn.o