https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=205934
Bug ID: 205934
Summary: clang crashes in configure test with #pragma weak
Product: Base System
Version: 10.2-RELEASE
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: bin
Assignee: freebsd-bugs@FreeBSD.org
Reporter: f...@fuz.su
The following very short C program triggers a bug in /usr/bin/cc (Clang 3.4.1)
on amd64 FreeBSD 10.2-RELEASE:
extern int test2();
#pragma weak test2 = test1
int test1() {return 0;}
int main() {
return test2();
; return 0; }
This program is used as a configure test in the Schily utilities, it's supposed
to test if the compiler correctly supports SysV #pragma weak, though it's not
supposed to induce a compiler crash. The output of /usr/bin/cc is:
Stack dump:
0. Program arguments: /usr/bin/cc -cc1 -triple x86_64-unknown-freebsd10.2
-emit-obj -mrelax-all -disable-free -disable-llvm-verifier -main-file-name
clang-bug.c -mrelocation-model static -mdisable-fp-elim -masm-verbose
-mconstructor-aliases -munwind-tables -target-cpu x86-64 -coverage-file
/tmp/clang-bug.o -resource-dir /usr/bin/../lib/clang/3.4.1
-fdebug-compilation-dir /tmp -ferror-limit 19 -fmessage-length 0 -mstackrealign
-fobjc-runtime=gnustep -fdiagnostics-show-option -vectorize-slp -o clang-bug.o
-x c clang-bug.c
1. clang-bug.c:5:14: current parser token ')'
2. clang-bug.c:4:12: parsing function body 'main'
3. clang-bug.c:4:12: in compound statement ('{}')
cc: error: unable to execute command: Segmentation fault (core dumped)
cc: error: clang frontend command failed due to signal (use -v to see
invocation)
FreeBSD clang version 3.4.1 (tags/RELEASE_34/dot1-final 208032) 20140512
Target: x86_64-unknown-freebsd10.2
Thread model: posix
cc: note: diagnostic msg: PLEASE submit a bug report to
https://bugs.freebsd.org/submit/ and include the crash backtrace, preprocessed
source, and associated run script.
cc: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
cc: note: diagnostic msg: /tmp/clang-bug-60a5bb.c
cc: note: diagnostic msg: /tmp/clang-bug-60a5bb.sh
cc: note: diagnostic msg:
********************
--
You are receiving this mail because:
You are the assignee for the bug.
_______________________________________________
freebsd-bugs@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/freebsd-bugs
To unsubscribe, send any mail to "freebsd-bugs-unsubscr...@freebsd.org"
