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From: "ro at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug d/103577] New: d21 SIGSEGV on Darwin/x86_64
Date: Mon, 06 Dec 2021 10:19:08 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103577

            Bug ID: 103577
           Summary: d21 SIGSEGV on Darwin/x86_64
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: d
          Assignee: ibuclaw at gdcproject dot org
          Reporter: ro at gcc dot gnu.org
  Target Milestone: ---
              Host: x86_64-apple-darwin11.4.2
            Target: x86_64-apple-darwin11.4.2
             Build: x86_64-apple-darwin11.4.2

I recently tried to build master on Darwin 11 with gcc 11.0.1.  That's the
first
release to build gdc, and while libphobos isn't marked as supported in
libphobos/configure.tgt, it does build with --enable-libphobos.

However, with that gdc as bootstrap compiler, the resulting d21 SEGVs build=
ing
the stage1 libphobos, e.g.

gdc: internal compiler error: Segmentation fault: 11 signal terminated prog=
ram
d21
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.
make[5]: *** [core/internal/gc/pooltable.lo] Error 1

Unfortunately, trying to debug d21 with gdb 9.1 just lets gdb hang in

Reading symbols from ./d21...

The bundled lldb fails differently, but provides no information.

I cannot really tell if this is supposed to work in some way or not.=