Date: Tue, 23 Feb 2016 09:03:04 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 207359] projects/clang380-import for TARGET_ARCH=powerpc64 via powerpc64-gcc : c++ exceptions unbounded loop in _Unwind_RaiseException (9 line program) Message-ID: <bug-207359-8-S51HqFFqfo@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-207359-8@https.bugs.freebsd.org/bugzilla/> References: <bug-207359-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=207359 --- Comment #1 from Mark Millard <markmi@dsl-only.net> --- (Now using projects/clang380-import -r295902 as a context.) TARGET_ARCH=powerpc64 here. It looks like FreeBSD's /lib/libgcc_s.so.1 is incompatible with using the pair: /usr/lib/libc++.so.1 and /lib/libcxxrt.so.1 . Details follow. Later below I list the ldd output for compiling the exception_test.cpp example under different compilers with different options that change what ldd shows and how .so's are found/bound. Some are using. . . ELF ldconfig path: /lib /usr/lib /usr/lib/compat /usr/local/lib /usr/local/lib/compat/pkg /usr/local/lib/compat/pkg /usr/local/lib/gcc49 /usr/local/lib/gcc6 and others are explicitly bound, such as by -Wl,-rpath=<?> . The only combinations that do not work are the ones that mix 3 things together: /usr/lib/libc++.so.1 /lib/libcxxrt.so.1 /lib/libgcc_s.so.1 That is: exception_test.clang++380.powerpc64 and exception_test.powerpc64-gcc.powerpc64 get the unbounded looping and the others work fine. By contrast /lib/libgcc_s.so.1 works with: /usr/local/lib/gcc49/libstdc++.so.6 and /usr/local/lib/gcc6/libstdc++.so.6 Of course a matched libstdc++/libgcc_s for a specific compiler also works. # ldd *powerpc64 exception_test.clang++380.powerpc64: libc++.so.1 => /usr/lib/libc++.so.1 (0x50054000) libcxxrt.so.1 => /lib/libcxxrt.so.1 (0x5015a000) libm.so.5 => /lib/libm.so.5 (0x50181000) libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x501be000) libc.so.7 => /lib/libc.so.7 (0x501e4000) exception_test.g++49-implicitgcc49.powerpc64: libstdc++.so.6 => /usr/local/lib/gcc49/libstdc++.so.6 (0x50054000) libm.so.5 => /lib/libm.so.5 (0x501ed000) libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x5022a000) libc.so.7 => /lib/libc.so.7 (0x50250000) exception_test.g++49.powerpc64: libstdc++.so.6 => /usr/local/lib/gcc49/libstdc++.so.6 (0x50054000) libm.so.5 => /lib/libm.so.5 (0x501ed000) libgcc_s.so.1 => /usr/local/lib/gcc49/libgcc_s.so.1 (0x5022a000) libc.so.7 => /lib/libc.so.7 (0x50253000) exception_test.g++6-implicitgcc49.powerpc64: libstdc++.so.6 => /usr/local/lib/gcc49/libstdc++.so.6 (0x50054000) libm.so.5 => /lib/libm.so.5 (0x501ed000) libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x5022a000) libc.so.7 => /lib/libc.so.7 (0x50250000) exception_test.g++6.powerpc64: libstdc++.so.6 => /usr/local/lib/gcc6/libstdc++.so.6 (0x50054000) libm.so.5 => /lib/libm.so.5 (0x502a6000) libgcc_s.so.1 => /usr/local/lib/gcc6/libgcc_s.so.1 (0x502e3000) libc.so.7 => /lib/libc.so.7 (0x5030a000) exception_test.powerpc64-gcc.powerpc64: libc++.so.1 => /usr/lib/libc++.so.1 (0x50053000) libcxxrt.so.1 => /lib/libcxxrt.so.1 (0x50159000) libm.so.5 => /lib/libm.so.5 (0x50180000) libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x501bd000) libc.so.7 => /lib/libc.so.7 (0x501e3000) -- You are receiving this mail because: You are the assignee for the bug.
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