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Re: [PATCH v2, libbacktrace]: Compile with -funwind-tables
On Tue, Oct 02, 2012 at 10:12:38AM -0700, Ian Lance Taylor wrote:
> On Tue, Oct 2, 2012 at 8:22 AM, Uros Bizjak <ubizjak@gmail.com> wrote:
> >
> > On a related issue, it looks to me that the compiler itself should be
> > compiled with -funwind-tables, otherwise there are no backtraces
> > generated, even if libbacktrace is linked in and operational. Again,
> > x86_64-linux-gnu host defaults to this flag, but other hosts are left
> > behind.
>
> Compiling with C++ should always give us -funwind-tables.
It doesn't give that, because the compiler is compiled with
-fno-exceptions -fno-rtti.
Jakub