[Bug ada/89349] segfault when building GCC 8 branch with GCC master

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89349

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|raised STORAGE_ERROR :      |segfault when building GCC
                   |stack overflow or erroneous |8 branch with GCC master
                   |memory access when building |
                   |GCC 8 branch with GCC       |
                   |master                      |

--- Comment #11 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
The backtrace is:

Program received signal SIGSEGV, Segmentation fault.
0x102254bc in __gnat_reset_attributes (
    attr=0x1197f4d0 <osint.unknown_attributes>)
    at /work/botcazou/gcc-8/src/gcc/ada/adaint.c:337
337       attr->exists     = ATTR_UNSET;
(gdb) bt
#0  0x102254bc in __gnat_reset_attributes (
    attr=0x1197f4d0 <osint.unknown_attributes>)
    at /work/botcazou/gcc-8/src/gcc/ada/adaint.c:337
#1  0x104a4e54 in <osint___elabb> ()
    at /work/botcazou/gcc-8/src/gcc/ada/osint.adb:3164
#2  0x106df57c in adainit () at ada/b_gnat1.adb:360
#3  0x1025b3e8 in gnat_parse_file ()
    at /work/botcazou/gcc-8/src/gcc/ada/gcc-interface/misc.c:119
#4  0x10d36ba4 in compile_file () at /work/botcazou/gcc-8/src/gcc/toplev.c:455
#5  0x10d39d5c in do_compile () at /work/botcazou/gcc-8/src/gcc/toplev.c:2132
#6  toplev::main (this=this@entry=0xffd7f638, argc=<optimized out>, 
    argc@entry=35, argv=<optimized out>, argv@entry=0xffd7f8d4)
    at /work/botcazou/gcc-8/src/gcc/toplev.c:2267
#7  0x11833de4 in main (argc=35, argv=0xffd7f8d4)
    at /work/botcazou/gcc-8/src/gcc/main.c:39