This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug libgcc/56846] _Unwind_Backtrace on ARM and noexcept
- From: "npl at chello dot at" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 14 May 2014 19:00:33 +0000
- Subject: [Bug libgcc/56846] _Unwind_Backtrace on ARM and noexcept
- Auto-submitted: auto-generated
- References: <bug-56846-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56846
--- Comment #4 from npl at chello dot at ---
I just found the similar entry on launchpad.
I have to recall this from memory, as its been a long time since I played
around with it.
The issue of repeating entries occurs if you have a function wihout
stack-unwinding information. These are as far as I know:
* .cantunwind in asm, probably plain asm too
* "C compiled" compiled without flags to generate unwind tables
* C++ compiled function with noexcept
Further, the compiled code behaves right when exceptions are thrown
(std::terminate), so the tables and generated code should be fine. The issue
should thus be in libgcc`s implementation of the _Unwind_Backtrace function.