Date: Mon, 04 Apr 2016 20:19:52 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-ppc@FreeBSD.org Subject: [Bug 207599] fixes for kernel built with clang failing to boot on ppc64 qemu Message-ID: <bug-207599-21-J4nsYwRTGV@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-207599-21@https.bugs.freebsd.org/bugzilla/> References: <bug-207599-21@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D207599 Mark Millard <markmi@dsl-only.net> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |markmi@dsl-only.net --- Comment #1 from Mark Millard <markmi@dsl-only.net> --- (In reply to Kenneth Salerno from comment #0) FYI: https://llvm.org/bugs/show_bug.cgi?id=3D25780 has a list of reports th= at FreeBSD requires to be fixed in order for clang to be the system compiler f= or powerpc and/or powerpc64. Some of the points are powerpc-only issues but so= me of the material also applies to powerpc64. (powerpc64 has had less checking/testing.) One of the major things messed up is C++ exception handling, with several issues contributing to the overall status. That in turn messes up being abl= e to use kyua for testing: kyua uses C++ exception handling extensively. The kernel's own code may systematically avoid using some of the messed up = code generation: most of the reported material that was based on testing is for buildworld attempts for TARGET_ARCH=3Dpowerpc. Some of the powerpc64 materi= al was just noted by someone to be analogous in the clang source code. Some of the code generation problems are reported to be low probability out= side the C++ exception handling context that forces certain examples of some more general issues. If you find more clang powerpc64 code generation problems it would be good = to add more reports on llvm.org/bugs and have them listed in llvm.org/bug's 25= 780. It may be that some of the material in the comments for some of the llvm.org/bugs submittals might eventually need their own submittals if the fixing-effort is sufficiently distinct. As stands some of the one-line descriptions only indicate an example of multiple related issues reported in the comments. --=20 You are receiving this mail because: You are the assignee for the bug.=
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