https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67908
Bug ID: 67908
Summary: gcc segfaults with -fstack-check (internal compiler
error) / armv7 host and target
Product: gcc
Version: 5.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: gcc-bugs at zahlenfresser dot de
Target Milestone: ---
Created attachment 36471
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36471&action=edit
preprocessed source (part of retroarch)
gcc segfaults if a certain source is compiled w/ -fstack-check
/usr/bin/gcc -v -save-temps -fstack-check -march=armv7-a -mfloat-abi=hard
-mfpu=vfpv3-d16 -O2 -pipe -fstack-protector --param=ssp-buffer-size=4 -Wall -O3
-ffast-math -g -std=gnu99 -Wno-unused-result -Wno-unused-variable -c -o test.o
test.c
gcc: warning: -pipe ignored because -save-temps specified
Using built-in specs.
COLLECT_GCC=/usr/bin/gcc
Target: armv7l-unknown-linux-gnueabihf
Configured with: /build/gcc/src/gcc-5.2.0/configure --prefix=/usr
--libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man
--infodir=/usr/share/info
--with-bugurl=https://github.com/archlinuxarm/PKGBUILDs/issues
--enable-languages=c,c++,fortran,go,lto,objc,obj-c++ --enable-shared
--enable-threads=posix --with-system-zlib --with-isl --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-clocale=gnu --disable-libstdcxx-pch
--disable-libssp --enable-gnu-unique-object --enable-linker-build-id
--enable-lto --enable-plugin --enable-install-libiberty
--with-linker-hash-style=gnu --enable-gnu-indirect-function --disable-multilib
--disable-werror --enable-checking=release
--with-default-libstdcxx-abi=gcc4-compatible
--host=armv7l-unknown-linux-gnueabihf --build=armv7l-unknown-linux-gnueabihf
--with-arch=armv7-a --with-float=hard --with-fpu=vfpv3-d16
Thread model: posix
gcc version 5.2.0 (GCC)
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-fstack-check=specific'
'-march=armv7-a' '-mfloat-abi=hard' '-mfpu=vfpv3-d16' '-O2' '-pipe'
'-fstack-protector' '--param' 'ssp-buffer-size=4' '-Wall' '-O3' '-ffast-math'
'-g' '-std=gnu99' '-Wno-unused-result' '-Wno-unused-variable' '-c' '-o'
'test.o' '-mtls-dialect=gnu'
/usr/lib/gcc/armv7l-unknown-linux-gnueabihf/5.2.0/cc1 -E -quiet -v test.c
-march=armv7-a -mfloat-abi=hard -mfpu=vfpv3-d16 -mtls-dialect=gnu -std=gnu99
-Wall -Wno-unused-result -Wno-unused-variable -fstack-check=specific
-fstack-protector -ffast-math -g -fworking-directory -O2 -O3 -fpch-preprocess
-o test.i
ignoring nonexistent directory
"/usr/lib/gcc/armv7l-unknown-linux-gnueabihf/5.2.0/../../../../armv7l-unknown-linux-gnueabihf/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/lib/gcc/armv7l-unknown-linux-gnueabihf/5.2.0/include
/usr/local/include
/usr/lib/gcc/armv7l-unknown-linux-gnueabihf/5.2.0/include-fixed
/usr/include
End of search list.
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-fstack-check=specific'
'-march=armv7-a' '-mfloat-abi=hard' '-mfpu=vfpv3-d16' '-O2' '-pipe'
'-fstack-protector' '--param' 'ssp-buffer-size=4' '-Wall' '-O3' '-ffast-math'
'-g' '-std=gnu99' '-Wno-unused-result' '-Wno-unused-variable' '-c' '-o'
'test.o' '-mtls-dialect=gnu'
/usr/lib/gcc/armv7l-unknown-linux-gnueabihf/5.2.0/cc1 -fpreprocessed test.i
-quiet -dumpbase test.c -march=armv7-a -mfloat-abi=hard -mfpu=vfpv3-d16
-mtls-dialect=gnu -auxbase-strip test.o -g -O2 -O3 -Wall -Wno-unused-result
-Wno-unused-variable -std=gnu99 -version -fstack-check=specific
-fstack-protector -ffast-math --param ssp-buffer-size=4 -o test.s
GNU C99 (GCC) version 5.2.0 (armv7l-unknown-linux-gnueabihf)
compiled by GNU C version 5.2.0, GMP version 6.0.0, MPFR version
3.1.3-p4, MPC version 1.0.3
GGC heuristics: --param ggc-min-expand=88 --param ggc-min-heapsize=110029
GNU C99 (GCC) version 5.2.0 (armv7l-unknown-linux-gnueabihf)
compiled by GNU C version 5.2.0, GMP version 6.0.0, MPFR version
3.1.3-p4, MPC version 1.0.3
GGC heuristics: --param ggc-min-expand=88 --param ggc-min-heapsize=110029
Compiler executable checksum: a180855a5eef4028f69bbf8deaf89c29
menu/menu_entry.c: In function 'menu_entry_pathdir_get_value':
menu/menu_entry.c:243:6: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
If -fstack-check is removed the source compiles. 4.9.3 works with and without
-fstack-check with the same source.
gcc:
gcc --version
gcc (GCC) 5.2.0
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
gcc configured:
--prefix=/usr \
--libdir=/usr/lib --libexecdir=/usr/lib \
--mandir=/usr/share/man --infodir=/usr/share/info \
--with-bugurl=https://github.com/archlinuxarm/PKGBUILDs/issues \
--enable-languages=c,c++,fortran,go,lto,objc,obj-c++ \
--enable-shared --enable-threads=posix \
--with-system-zlib --with-isl --enable-__cxa_atexit \
--disable-libunwind-exceptions --enable-clocale=gnu \
--disable-libstdcxx-pch --disable-libssp \
--enable-gnu-unique-object --enable-linker-build-id \
--enable-lto --enable-plugin --enable-install-libiberty \
--with-linker-hash-style=gnu --enable-gnu-indirect-function \
--disable-multilib --disable-werror \
--enable-checking=release \
--with-default-libstdcxx-abi=gcc4-compatible \
--host=armv7l-unknown-linux-gnueabihf
--build=armv7l-unknown-linux-gnueabihf --with-arch=armv7-a --with-float=hard
--with-fpu=vfpv3-d16
This is the distribution compiler on arch linux arm on a RPi2.
Attached is the preproccessed source
