[mach-o] enable mach-o and native yaml to be intermixed

The main goal of this patch is to allow "mach-o encoded as yaml" and "native
encoded as yaml" documents to be intermixed.  They are distinguished via 
yaml tags at the start of the document.  This will enable all mach-o test cases
to be written using yaml instead of checking in object files.

The Registry was extend to allow yaml tag handlers to be registered.  The
mach-o Reader adds a yaml tag handler for the tag "!mach-o". 

Additionally, this patch fixes some buffer ownership issues.  When parsing
mach-o binaries, the mach-o atoms can have pointers back into the memory 
mapped .o file.  But with yaml encoded mach-o, name and content are ephemeral, 
so a copyRefs parameter was added to cause the mach-o atoms to make their
own copy.  

llvm-svn: 198986

1 files changed, 4 insertions, 4 deletions

diff --git a/lld/unittests/MachOTests/MachONormalizedFileBinaryWriterTests.cpp b/lld/unittests/MachOTests/MachONormalizedFileBinaryWriterTests.cpp
index 0f2d8d6f3b9..7670da221a5 100644
--- a/lld/unittests/MachOTests/MachONormalizedFileBinaryWriterTests.cpp
+++ b/lld/unittests/MachOTests/MachONormalizedFileBinaryWriterTests.cpp
@@ -139,7 +139,7 @@ TEST(BinaryWriterTest, obj_relocs_x86_64) {
       0x05, 0xfc, 0xff, 0xff, 0xff, 0x78, 0x56, 0x34, 
       0x12, 0x48, 0x8b, 0x3d, 0x00, 0x00, 0x00, 0x00 };
 
-    text.content.assign(textBytes, textBytes+sizeof(textBytes));
+    text.content = llvm::makeArrayRef(textBytes, sizeof(textBytes));
     text.relocations.push_back(makeReloc(0x01, false, true, X86_64_RELOC_BRANCH, 1));
     text.relocations.push_back(makeReloc(0x08, false, true, X86_64_RELOC_GOT_LOAD, 1));
     text.relocations.push_back(makeReloc(0x0E, false, true, X86_64_RELOC_GOT, 1));
@@ -252,7 +252,7 @@ TEST(BinaryWriterTest, obj_relocs_x86) {
        0x00, 0x00, 0x8b, 0xb0, 0xfb, 0xff, 0xff, 0xff,
        0x8b, 0x80, 0x11, 0x00, 0x00, 0x00 };
 
-    text.content.assign(textBytes, textBytes+sizeof(textBytes));
+    text.content = llvm::makeArrayRef(textBytes, sizeof(textBytes));
     text.relocations.push_back(makeReloc(0x01, true, true, GENERIC_RELOC_VANILLA, 0));
     text.relocations.push_back(makeReloc(0x06, false, true, GENERIC_RELOC_VANILLA, 0));
     text.relocations.push_back(makeScatReloc(0x0c, GENERIC_RELOC_LOCAL_SECTDIFF, 0));
@@ -361,7 +361,7 @@ TEST(BinaryWriterTest, obj_relocs_armv7) {
       0xc0, 0xf2, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
       0x00, 0xbf };
 
-    text.content.assign(textBytes, textBytes+sizeof(textBytes));
+    text.content = llvm::makeArrayRef(textBytes, sizeof(textBytes));
     text.relocations.push_back(makeReloc(0x00, true, true, 
                                         ARM_THUMB_RELOC_BR22, 2));
     text.relocations.push_back(makeScatReloc(0x04, 
@@ -492,7 +492,7 @@ TEST(BinaryWriterTest, obj_relocs_ppc) {
       0x80, 0x42, 0x00, 0x28, 0x80, 0x63, 0x00, 0x28,
       0x60, 0x00, 0x00, 0x00 };
 
-    text.content.assign(textBytes, textBytes+sizeof(textBytes));
+    text.content = llvm::makeArrayRef(textBytes, sizeof(textBytes));
     text.relocations.push_back(makeReloc(0x00, true, true, 
                                         PPC_RELOC_BR24, 2));
     text.relocations.push_back(makeReloc(0x04, true, true,