[llvm] r320219 - Register NetBSD/x86_64 in MemorySanitizer.cpp

[Kamil Rytarowski via llvm-commits]

Author: kamil
Date: Fri Dec  8 16:32:09 2017
New Revision: 320219

URL: http://llvm.org/viewvc/llvm-project?rev=320219&view=rev
Log:
Register NetBSD/x86_64 in MemorySanitizer.cpp

Summary:
Reuse the Linux new mapping as it is.

Sponsored by <The NetBSD Foundation>

Reviewers: joerg, eugenis, vitalybuka

Reviewed By: vitalybuka

Subscribers: llvm-commits, #sanitizers

Tags: #sanitizers

Differential Revision: https://reviews.llvm.org/D41022

Modified:
    llvm/trunk/lib/Transforms/Instrumentation/MemorySanitizer.cpp

Modified: llvm/trunk/lib/Transforms/Instrumentation/MemorySanitizer.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Instrumentation/MemorySanitizer.cpp?rev=320219&r1=320218&r2=320219&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Instrumentation/MemorySanitizer.cpp (original)
+++ llvm/trunk/lib/Transforms/Instrumentation/MemorySanitizer.cpp Fri Dec  8 16:32:09 2017
@@ -320,6 +320,14 @@ static const MemoryMapParams FreeBSD_X86
   0x380000000000,  // OriginBase
 };
 
+// x86_64 NetBSD
+static const MemoryMapParams NetBSD_X86_64_MemoryMapParams = {
+  0,               // AndMask
+  0x500000000000,  // XorMask
+  0,               // ShadowBase
+  0x100000000000,  // OriginBase
+};
+
 static const PlatformMemoryMapParams Linux_X86_MemoryMapParams = {
   &Linux_I386_MemoryMapParams,
   &Linux_X86_64_MemoryMapParams,
@@ -345,6 +353,11 @@ static const PlatformMemoryMapParams Fre
   &FreeBSD_X86_64_MemoryMapParams,
 };
 
+static const PlatformMemoryMapParams NetBSD_X86_MemoryMapParams = {
+  nullptr,
+  &NetBSD_X86_64_MemoryMapParams,
+};
+
 namespace {
 
 /// \brief An instrumentation pass implementing detection of uninitialized
@@ -575,6 +588,15 @@ bool MemorySanitizer::doInitialization(M
           break;
         default:
           report_fatal_error("unsupported architecture");
+      }
+      break;
+    case Triple::NetBSD:
+      switch (TargetTriple.getArch()) {
+        case Triple::x86_64:
+          MapParams = NetBSD_X86_MemoryMapParams.bits64;
+          break;
+        default:
+          report_fatal_error("unsupported architecture");
       }
       break;
     case Triple::Linux: