Date: Fri, 19 Feb 2016 11:37:01 -0800 From: Mark Millard <markmi@dsl-only.net> To: FreeBSD PowerPC ML <freebsd-ppc@freebsd.org>, FreeBSD Toolchain <freebsd-toolchain@freebsd.org> Subject: I've' submitted 207325 and 207359 for powerpc/powrpc64 c++ exception problems for projects/clang380-import -r295601 (9 line program) Message-ID: <83B8741C-B4C9-4EFB-A3B4-473F8F165984@dsl-only.net>
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The following program does not work for my example TARGET_ARCH=3Dpowerpc =
and TARGET_ARCH=3Dpowerpc64 environments for buildworld based on =
projects/clang380-import -r205601:
#include <exception>
int main(void)
{
try { throw std::exception(); }
catch (std::exception& e) {} // same result without &
return 0;
}
The details vary for what happens and what compiler is in use.
TARGET_ARCH=3Dpowerpc with clang 3.8.0: SEGV
TARGET_ARCH=3Dpowerpc64 with devel/powerpc64-gcc: unbouded loop in =
_Unwind_RaiseException
For the powerpc64 context: g++49 can be used to show the problem as =
well:
Using g++49's a.out gets the same unbounded loop result for:
# g++49 -I /usr/include/c++/v1/ -L /usr/lib/ -g -Wall -pedantic =
exception_test.cpp =
=20
But the a.out works fine for a normal g++49 header/library usage:
# g++49 -g -Wall -pedantic exception_test.cpp
# ./a.out
#=20
(These were noticed by trying to build and use kyua to run the =
/usr/tests material in tehse enviroments.)
=3D=3D=3D
Mark Millard
markmi at dsl-only.net
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