https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61577
--- Comment #263 from Larkin Nickle <me at larbob dot org> --- I'm having trouble actually getting a GDB that can read the resulting symbols properly. readelf --debug-dump=info cc1 | grep -A 2 'Compilation Unit @' Compilation Unit @ offset 0x0: Length: 0xa390 (32-bit) Version: 2 As shown above, using readelf, I've confirmed I am now getting DWARF2 symbols, but I'm unable to read them with my own built GDB 7.3.1 or GDB 7.5.1 from http://ftp.nluug.nl/os/HPUX/itrc/gcc-4.7.2-11.31.sd.bz. HP GDB 6.7 is able to handle them somewhat: Object file is generated with GNU compiler: GNU C++17 11.1.0 -g -O2 -fno-PIE -fno-exceptions -fno-rtti -fasynchronous-unwind-tables HP WDB does not support debugging of programs compiled with GNU compiler. Some features may work, but it is not guaranteed. HP recommends using HP aCC compiler, Refer: http://www.hp.com/go/aCC Refer http://www.hp.com/go/wdb for the support statement done. Running cc1 w/ the arguments that lead to the illegal instruction error (as verified with -v): Program received signal SIGILL, Illegal instruction si_code: 9 - ILL_REGNAT - Register NaT Consumption. 0x54af7f0:1 in get_ref_base_and_extent (exp=<not available>, poffset=<not available>, psize=<not available>, pmax_size=<not available>, preverse=<not available>) at ../../gcc/tree-dfa.c:525 525 maxsize = wi::to_poly_offset (asize) - bit_offset; However, trying to get a backtrace with `bt` results in HP GDB core dumping: #0 0x54af7f0:1 in get_ref_base_and_extent (exp=<not available>, poffset=<not available>, psize=<not available>, pmax_size=<not available>, preverse=<not available>) at ../../gcc/tree-dfa.c:525 Assertion failed: stacki == 0, file ../../../Src/gnu/gdb/dwarf2read.c, line 1579 ABORT instruction (core dumped)
