https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95500
Bug ID: 95500
Summary: Segfault compiling extra interface on intrinsic
Product: gcc
Version: 9.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: vincent.lafage at in2p3 dot fr
Target Milestone: ---
Created attachment 48669
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48669&action=edit
Source file for the minimal test case
When compiling the following sample minimal test case (named
test_intrinsic.f90)
program test_intrinsic
implicit none
intrinsic :: alog
intrinsic :: dlog
real (4), parameter :: one = 1
interface ln
procedure :: alog, dlog
end interface ln
write (*, *) 'ln 1', ln (one)
end program test_intrinsic
through
$ gfortran -Wall -Wextra test_intrinsic.f90
I ended-up with the following failure:
test_intrinsic.f90:11:0:
11 | write (*, *) 'ln 1', ln (one)
|
internal compiler error: Segmentation fault
0x7f4068d23fdf ???
/build/glibc-TrjWJf/glibc-2.29/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0x7f4068d10bba __libc_start_main
../csu/libc-start.c:308
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-9/README.Bugs> for instructions.
I confirm that it is a longstanding bug, as I get the same problem with
gfortran-4.9, gfortran-5, gfortran-6, gfortran-7, gfortran-8 as well.
(Trying with other brands of compiler, g95, pgfortran, flang, and an old ifort
reported error without segfaulting)
Getting the backtrace with valgrind:
$ valgrind -s -v --leak-check=full --show-reachable=yes --show-leak-kinds=all
--leak-resolution=high --num-callers=100 --trace-children=yes --track-fds=yes
--log-file=Valgrind_gfortran_report4.txt gfortran -v -Wall -Wextra
test_intrinsic.f90
…
==891734== 1 errors in context 1 of 1:
==891734== Invalid read of size 1
==891734== at 0x135083C: gfc_conv_expr_reference(gfc_se*, gfc_expr*, bool)
(in /usr/lib/gcc/x86_64-linux-gnu/9/f951)
==891734== by 0x1385548: gfc_trans_transfer(gfc_code*) (in
/usr/lib/gcc/x86_64-linux-gnu/9/f951)
==891734== by 0x130D669: ??? (in /usr/lib/gcc/x86_64-linux-gnu/9/f951)
==891734== by 0x137FA9C: ??? (in /usr/lib/gcc/x86_64-linux-gnu/9/f951)
==891734== by 0x130D689: ??? (in /usr/lib/gcc/x86_64-linux-gnu/9/f951)
==891734== by 0x133F1F5: gfc_generate_function_code(gfc_namespace*) (in
/usr/lib/gcc/x86_64-linux-gnu/9/f951)
==891734== by 0x128CF26: gfc_parse_file() (in
/usr/lib/gcc/x86_64-linux-gnu/9/f951)
==891734== by 0x1309D9F: ??? (in /usr/lib/gcc/x86_64-linux-gnu/9/f951)
==891734== by 0x143CC26: ??? (in /usr/lib/gcc/x86_64-linux-gnu/9/f951)
==891734== by 0xD9A415: toplev::main(int, char**) (in
/usr/lib/gcc/x86_64-linux-gnu/9/f951)
==891734== by 0xD9C4CE: main (in /usr/lib/gcc/x86_64-linux-gnu/9/f951)
==891734== Address 0x50 is not stack'd, malloc'd or (recently) free'd
==891734==
==891734== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)
$ gfortran --version
GNU Fortran (Debian 9.2.1-4) 9.2.1 20190821
$ uname -a
Linux serval 5.4.0-0.bpo.4-amd64 #1 SMP Debian 5.4.19-1~bpo10+1 (2020-03-09)
x86_64 GNU/Linux
$ gfortran -v -Wall -Wextra test_intrinsic.f90
Driving: gfortran -v -Wall -Wextra test_intrinsic.f90 -l gfortran -l m
-shared-libgcc
Using built-in specs.
COLLECT_GCC=gfortran
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/9/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none:hsa
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 9.2.1-4'
--with-bugurl=file:///usr/share/doc/gcc-9/README.Bugs
--enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++,gm2 --prefix=/usr
--with-gcc-major-version-only --program-suffix=-9
--program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--libdir=/usr/lib --enable-nls --enable-bootstrap --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-gnu-unique-object
--disable-vtable-verify --enable-plugin --enable-default-pie --with-system-zlib
--with-target-system-zlib=auto --enable-multiarch --disable-werror
--with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32
--enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none,hsa
--without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu
--host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 9.2.1 20190821 (Debian 9.2.1-4)
COLLECT_GCC_OPTIONS='-v' '-Wall' '-Wextra' '-shared-libgcc' '-mtune=generic'
'-march=x86-64'
/usr/lib/gcc/x86_64-linux-gnu/9/f951 test_intrinsic.f90 -quiet -dumpbase
test_intrinsic.f90 -mtune=generic -march=x86-64 -auxbase test_intrinsic -Wall
-Wextra -version -fintrinsic-modules-path
/usr/lib/gcc/x86_64-linux-gnu/9/finclude -o /tmp/ccgGzgc9.s
GNU Fortran (Debian 9.2.1-4) version 9.2.1 20190821 (x86_64-linux-gnu)
compiled by GNU C version 9.2.1 20190821, GMP version 6.1.2, MPFR
version 4.0.2, MPC version 1.1.0, isl version isl-0.20-GMP
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU Fortran2008 (Debian 9.2.1-4) version 9.2.1 20190821 (x86_64-linux-gnu)
compiled by GNU C version 9.2.1 20190821, GMP version 6.1.2, MPFR
version 4.0.2, MPC version 1.1.0, isl version isl-0.20-GMP
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
test_intrinsic.f90:11:0:
11 | write (*, *) 'ln 1', ln (one)
|
internal compiler error: Segmentation fault
0x7fd0b7015fdf ???
/build/glibc-TrjWJf/glibc-2.29/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0x7fd0b7002bba __libc_start_main
../csu/libc-start.c:308
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-9/README.Bugs> for instructions.
