https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68986
Bug ID: 68986
Summary: internal compiler error: Segmentation fault
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: jas...@3db-labs.com
Target Milestone: ---
Created attachment 37087
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37087&action=edit
C source file that demonstrates the error
I'm running on Ubuntu 14.04 (x86_64) using gcc 5.3.0. I've also observed this
problem with 5.2.0 and 5.2.1 at least, however. I haven't seen any problems
with any gcc versions in the 4.x series; it appears to be isolated to 5.x at
least.
Here is the output of gcc run with the `-v` argument:
$ gcc-5 -v
Using built-in specs.
COLLECT_GCC=gcc-5
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/5/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu
5.3.0-3ubuntu1~14.04' --with-bugurl=file:///usr/share/doc/gcc-5/README.Bugs
--enable-languages=c,ada,c++,java,go,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-5 --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=gcc4-compatible --disable-libstdcxx-dual-abi
--enable-gnu-unique-object --disable-vtable-verify --enable-libmpx
--enable-plugin --with-system-zlib --disable-browser-plugin
--enable-java-awt=gtk --enable-gtk-cairo
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-5-amd64/jre --enable-java-home
--with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-5-amd64
--with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-5-amd64
--with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar
--enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=i686
--with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib
--with-tune=generic --enable-checking=release --build=x86_64-linux-gnu
--host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 5.3.0 20151204 (Ubuntu 5.3.0-3ubuntu1~14.04)
I compile the attached C file (which is reduced down from the original file,
down to the minimum code required to show the compiler error) using the
following command line:
gcc-5 tracesig.c -c -fPIC -mpreferred-stack-boundary=5
-mincoming-stack-boundary=4
The stack-related options come from source code elsewhere in this project that
has particular SIMD requirements. When I execute the above command line, I get
the following output:
tracesig.c: In function ‘char* __check_point_msg_buffer()’:
tracesig.c:20:1: internal compiler error: Segmentation fault
}
^
0xa8842f crash_signal
../../src/gcc/toplev.c:383
0xcca22c ix86_expand_prologue()
../../src/gcc/config/i386/i386.c:11503
0xda9dca gen_prologue()
../../src/gcc/config/i386/i386.md:12254
0x877cbf thread_prologue_and_epilogue_insns()
../../src/gcc/function.c:5930
0x8784a2 rest_of_handle_thread_prologue_and_epilogue
../../src/gcc/function.c:6500
0x8784a2 execute
../../src/gcc/function.c:6538
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <file:///usr/share/doc/gcc-5/README.Bugs> for instructions.
I will attach the preprocessed file in a subsequent reply to the report.
