Using: [root@kirkwood-f18-v5tel gcc-4.8-20130113]# gcc -v Using built-in specs. COLLECT_GCC=/bin/gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/armv5tel-redhat-linux-gnueabi/4.7.2/lto-wrapper Target: armv5tel-redhat-linux-gnueabi Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --disable-build-with-cxx --disable-build-poststage1-with-cxx --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-linker-hash-style=gnu --enable-languages=c,c++,objc,obj-c++,java,fortran,go,lto --enable-plugin --enable-initfini-array --enable-java-awt=gtk --disable-dssi --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre --enable-libgcj-multifile --enable-java-maintainer-mode --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib --with-ppl --with-cloog --disable-sjlj-exceptions --build=armv5tel-redhat-linux-gnueabi Thread model: posix gcc version 4.7.2 20121109 (Red Hat 4.7.2-8) (GCC) --- building gcc-4.8.-20130113 with just ./configure /home/so/gcc-4.8-20130113/host-armv5tel-unknown-linux-gnueabi/gcc/xgcc -shared-libgcc -B/home/so/gcc-4.8-20130113/host-armv5tel-unknown-linux-gnueabi/gcc -nostdinc++ -L/home/so/gcc-4.8-20130113/armv5tel-unknown-linux-gnueabi/libstdc++-v3/src -L/home/so/gcc-4.8-20130113/armv5tel-unknown-linux-gnueabi/libstdc++-v3/src/.libs -B/usr/local/armv5tel-unknown-linux-gnueabi/bin/ -B/usr/local/armv5tel-unknown-linux-gnueabi/lib/ -isystem /usr/local/armv5tel-unknown-linux-gnueabi/include -isystem /usr/local/armv5tel-unknown-linux-gnueabi/sys-include -x c++-header -nostdinc++ -g -O2 -D_GNU_SOURCE -I/home/so/gcc-4.8-20130113/armv5tel-unknown-linux-gnueabi/libstdc++-v3/include/armv5tel-unknown-linux-gnueabi -I/home/so/gcc-4.8-20130113/armv5tel-unknown-linux-gnueabi/libstdc++-v3/include -I/home/so/gcc-4.8-20130113/libstdc++-v3/libsupc++ -O2 -g -std=gnu++0x /home/so/gcc-4.8-20130113/libstdc++-v3/include/precompiled/stdc++.h \ -o armv5tel-unknown-linux-gnueabi/bits/stdc++.h.gch/O2ggnu++0x.gch In file included from /home/so/gcc-4.8-20130113/armv5tel-unknown-linux-gnueabi/libstdc++-v3/include/random:52:0, from /home/so/gcc-4.8-20130113/armv5tel-unknown-linux-gnueabi/libstdc++-v3/include/bits/stl_algo.h:67, from /home/so/gcc-4.8-20130113/armv5tel-unknown-linux-gnueabi/libstdc++-v3/include/algorithm:63, from /home/so/gcc-4.8-20130113/libstdc++-v3/include/precompiled/stdc++.h:65: /home/so/gcc-4.8-20130113/armv5tel-unknown-linux-gnueabi/libstdc++-v3/include/bits/random.tcc: In function ‘_RealType std::generate_canonical(_UniformRandomNumberGenerator&)’: /home/so/gcc-4.8-20130113/armv5tel-unknown-linux-gnueabi/libstdc++-v3/include/bits/random.tcc:3468:59: in constexpr expansion of ‘std::log(2.0e+0l)’ /home/so/gcc-4.8-20130113/armv5tel-unknown-linux-gnueabi/libstdc++-v3/include/bits/random.tcc:3468:59: internal compiler error: Segmentation fault const size_t __log2r = std::log(__r) / std::log(2.0L); ^ 0x96e763 crash_signal ../.././gcc/toplev.c:332 0x47bcd7 do_mpfr_arg1 ../.././gcc/builtins.c:13680 0x461d6b fold_builtin_logarithm ../.././gcc/builtins.c:8255 0x472433 fold_builtin_1 ../.././gcc/builtins.c:10508 0x4741db fold_builtin_n ../.././gcc/builtins.c:11054 0x474a07 fold_call_expr(unsigned int, tree_node*, bool) ../.././gcc/builtins.c:11181 0x66e92f fold(tree_node*) ../.././gcc/fold-const.c:14343 0x321613 cxx_eval_builtin_function_call ../.././gcc/cp/semantics.c:6460 0x32219b cxx_eval_call_expression ../.././gcc/cp/semantics.c:6603 0x327613 cxx_eval_constant_expression ../.././gcc/cp/semantics.c:7691 0x327727 cxx_eval_constant_expression ../.././gcc/cp/semantics.c:7712 0x32262b cxx_eval_call_expression ../.././gcc/cp/semantics.c:6695 0x327613 cxx_eval_constant_expression ../.././gcc/cp/semantics.c:7691 0x3283d3 cxx_eval_outermost_constant_expr ../.././gcc/cp/semantics.c:7992 0x328c13 maybe_constant_value(tree_node*) ../.././gcc/cp/semantics.c:8103 0x1f0d9f build_non_dependent_expr(tree_node*) ../.././gcc/cp/pt.c:20207 0x2b7137 build_x_binary_op(unsigned int, tree_code, tree_node*, tree_code, tree_node*, tree_code, tree_node**, int) ../.././gcc/cp/typeck.c:3670 0x26f697 cp_parser_binary_expression ../.././gcc/cp/parser.c:7476 0x26fa3b cp_parser_assignment_expression ../.././gcc/cp/parser.c:7584 0x26fecf cp_parser_constant_expression ../.././gcc/cp/parser.c:7815 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <http://gcc.gnu.org/bugs.html> for instructions. make[5]: *** [armv5tel-unknown-linux-gnueabi/bits/stdc++.h.gch/O2ggnu++0x.gch] Error 1 make[5]: Leaving directory `/home/so/gcc-4.8-20130113/armv5tel-unknown-linux-gnueabi/libstdc++-v3/include' make[4]: *** [all-recursive] Error 1 make[4]: Leaving directory `/home/so/gcc-4.8-20130113/armv5tel-unknown-linux-gnueabi/libstdc++-v3' make[3]: *** [all] Error 2 make[3]: Leaving directory `/home/so/gcc-4.8-20130113/armv5tel-unknown-linux-gnueabi/libstdc++-v3' make[2]: *** [all-stage1-target-libstdc++-v3] Error 2 make[2]: Leaving directory `/home/so/gcc-4.8-20130113' make[1]: *** [stage1-bubble] Error 2 make[1]: Leaving directory `/home/so/gcc-4.8-20130113' make: *** [all] Error 2
While generating a PCH ... ugh.
Hitting this bug on x86. gcc 4.7.2 (and 4.7.1). Can't pinpoint why I haven't experienced it before today. I haven't investigated yet, but I'm working around it with: sed -i -e 's/std::log(2.0L)/0.693147/' libstdc++-v3/include/bits/random.tcc 0.693147 comes from mytest.cpp: cout << std::log(2.0L); HTH
There is very little here to help reproduce this issue especially as I see others building 4.8.x based compilers on gcc-testresults even today. I think I'm going to mark this as WONTFIX until we know more and let's reopen this if the problem still exists.