From 72be32c6332ff9dd38b989d5a0dd80f40996dd10 Mon Sep 17 00:00:00 2001
From: Andrew Kaylor <andrew.kaylor@intel.com>
Date: Tue, 15 Oct 2013 21:32:56 +0000
Subject: [PATCH] Separating ELF and MachO stub info functions for RuntimeDyld

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192737 91177308-0d34-0410-b5e6-96231b3b80d8
---
 .../RuntimeDyld/RuntimeDyldELF.h              | 24 ++++++++++++++++++
 .../RuntimeDyld/RuntimeDyldImpl.h             | 25 ++-----------------
 .../RuntimeDyld/RuntimeDyldMachO.h            | 13 ++++++++++
 3 files changed, 39 insertions(+), 23 deletions(-)

diff --git a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h
index ab6b8bdaf3d..058078b0f3c 100644
--- a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h
+++ b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h
@@ -82,6 +82,30 @@ class RuntimeDyldELF : public RuntimeDyldImpl {
                                 uint32_t Type,
                                 int64_t Addend);
 
+  unsigned getMaxStubSize() {
+    if (Arch == Triple::aarch64)
+      return 20; // movz; movk; movk; movk; br
+    if (Arch == Triple::arm || Arch == Triple::thumb)
+      return 8; // 32-bit instruction and 32-bit address
+    else if (Arch == Triple::mipsel || Arch == Triple::mips)
+      return 16;
+    else if (Arch == Triple::ppc64 || Arch == Triple::ppc64le)
+      return 44;
+    else if (Arch == Triple::x86_64)
+      return 6; // 2-byte jmp instruction + 32-bit relative address
+    else if (Arch == Triple::systemz)
+      return 16;
+    else
+      return 0;
+  }
+
+  unsigned getStubAlignment() {
+    if (Arch == Triple::systemz)
+      return 8;
+    else
+      return 1;
+  }
+
   uint64_t findPPC64TOC() const;
   void findOPDEntrySection(ObjectImage &Obj,
                            ObjSectionToIDMap &LocalSections,
diff --git a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h
index b5f2991244f..2fb2813b070 100644
--- a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h
+++ b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h
@@ -186,29 +186,8 @@ protected:
   Triple::ArchType Arch;
   bool IsTargetLittleEndian;
 
-  inline unsigned getMaxStubSize() {
-    if (Arch == Triple::aarch64)
-      return 20; // movz; movk; movk; movk; br
-    if (Arch == Triple::arm || Arch == Triple::thumb)
-      return 8; // 32-bit instruction and 32-bit address
-    else if (Arch == Triple::mipsel || Arch == Triple::mips)
-      return 16;
-    else if (Arch == Triple::ppc64 || Arch == Triple::ppc64le)
-      return 44;
-    else if (Arch == Triple::x86_64)
-      return 6; // 2-byte jmp instruction + 32-bit relative address
-    else if (Arch == Triple::systemz)
-      return 16;
-    else
-      return 0;
-  }
-
-  inline unsigned getStubAlignment() {
-    if (Arch == Triple::systemz)
-      return 8;
-    else
-      return 1;
-  }
+  virtual unsigned getMaxStubSize() = 0;
+  virtual unsigned getStubAlignment() = 0;
 
   bool HasError;
   std::string ErrorStr;
diff --git a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h
index 3906c9d56d6..bbf6aa9f650 100644
--- a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h
+++ b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h
@@ -55,6 +55,19 @@ class RuntimeDyldMachO : public RuntimeDyldImpl {
                          bool isPCRel,
                          unsigned Size);
 
+  unsigned getMaxStubSize() {
+    if (Arch == Triple::arm || Arch == Triple::thumb)
+      return 8; // 32-bit instruction and 32-bit address
+    else if (Arch == Triple::x86_64)
+      return 8; // GOT entry
+    else
+      return 0;
+  }
+
+  unsigned getStubAlignment() {
+    return 1;
+  }
+
   struct EHFrameRelatedSections {
     EHFrameRelatedSections() : EHFrameSID(RTDYLD_INVALID_SECTION_ID),
                                TextSID(RTDYLD_INVALID_SECTION_ID),
-- 
2.34.1