[Bug preprocessor/66909] Internal Compiler Error when #including files from /sys on Linux

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66909

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Here is 4.7 backtrace:
t65.c:1:0: internal compiler error: Segmentation fault
0x7547af crash_signal
        /bajas/pinskia/src/toolchain-47/scripts/../src/gcc/toplev.c:348
0xa55004 linemap_macro_map_lookup
        /bajas/pinskia/src/toolchain-47/scripts/../src/libcpp/line-map.c:583
0xa55004 linemap_lookup
        /bajas/pinskia/src/toolchain-47/scripts/../src/libcpp/line-map.c:514
0xa551ca linemap_macro_loc_to_spelling_point
        /bajas/pinskia/src/toolchain-47/scripts/../src/libcpp/line-map.c:919
0xa551ca linemap_resolve_location
        /bajas/pinskia/src/toolchain-47/scripts/../src/libcpp/line-map.c:1069
0xa5524b linemap_location_in_system_header_p
        /bajas/pinskia/src/toolchain-47/scripts/../src/libcpp/line-map.c:758
0xa4066e diagnostic_report_diagnostic
        /bajas/pinskia/src/toolchain-47/scripts/../src/gcc/diagnostic.c:524
0x4dd784 c_cpp_error
       
/bajas/pinskia/src/toolchain-47/scripts/../src/gcc/c-family/c-common.c:8944
0xa4a3fd cpp_diagnostic
        /bajas/pinskia/src/toolchain-47/scripts/../src/libcpp/errors.c:64
0xa4a556 cpp_error
        /bajas/pinskia/src/toolchain-47/scripts/../src/libcpp/errors.c:79
0xa4ec4f read_file_guts
        /bajas/pinskia/src/toolchain-47/scripts/../src/libcpp/files.c:645
0xa4ec4f read_file
        /bajas/pinskia/src/toolchain-47/scripts/../src/libcpp/files.c:678
0xa4f6bd should_stack_file
        /bajas/pinskia/src/toolchain-47/scripts/../src/libcpp/files.c:723
0xa4f6bd _cpp_stack_file
        /bajas/pinskia/src/toolchain-47/scripts/../src/libcpp/files.c:801
0xa47b35 do_include_common
        /bajas/pinskia/src/toolchain-47/scripts/../src/libcpp/directives.c:792
0xa487e0 _cpp_handle_directive
        /bajas/pinskia/src/toolchain-47/scripts/../src/libcpp/directives.c:491
0xa5443c _cpp_lex_token
        /bajas/pinskia/src/toolchain-47/scripts/../src/libcpp/lex.c:1952
0xa583c7 cpp_get_token_1
        /bajas/pinskia/src/toolchain-47/scripts/../src/libcpp/macro.c:2245
0x4e8044 c_lex_with_flags
        /bajas/pinskia/src/toolchain-47/scripts/../src/gcc/c-family/c-lex.c:302
0x4a651f c_lex_one_token
        /bajas/pinskia/src/toolchain-47/scripts/../src/gcc/c-parser.c:219