[Lldb-commits] [lldb] r247579 - Use SI_KERNEL on platforms defining it

Stephane Sezer via lldb-commits lldb-commits at lists.llvm.org
Mon Sep 14 09:52:02 PDT 2015

Author: sas
Date: Mon Sep 14 11:51:58 2015
New Revision: 247579

URL: http://llvm.org/viewvc/llvm-project?rev=247579&view=rev
Use SI_KERNEL on platforms defining it

Linux and FreeBSD occasionally send SI_KERNEL codes, nonexistent on other platforms.

Problem caught on NetBSD.

Reviewers: joerg, sas

Subscribers: sas, lldb-commits, emaste

Differential Revision: http://reviews.llvm.org/D12659

Change by Kamil Rytarowski <n54 at gmx.com>


Modified: lldb/trunk/source/Plugins/Process/POSIX/CrashReason.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/POSIX/CrashReason.cpp?rev=247579&r1=247578&r2=247579&view=diff
--- lldb/trunk/source/Plugins/Process/POSIX/CrashReason.cpp (original)
+++ lldb/trunk/source/Plugins/Process/POSIX/CrashReason.cpp Mon Sep 14 11:51:58 2015
@@ -28,11 +28,12 @@ GetCrashReasonForSIGSEGV(const siginfo_t
     switch (info.si_code)
+#ifdef SI_KERNEL
     case SI_KERNEL:
-        // Linux will occasionally send spurious SI_KERNEL codes.
-        // (this is poorly documented in sigaction)
+        // Some platforms will occasionally send nonstandard spurious SI_KERNEL codes.
         // One way to get this is via unaligned SIMD loads.
         return CrashReason::eInvalidAddress; // for lack of anything better
     case SEGV_MAPERR:
         return CrashReason::eInvalidAddress;
     case SEGV_ACCERR:

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