From: Kevin Enderby <enderby@apple.com>
Date: Tue, 20 Jun 2017 22:55:11 +0000 (+0000)
Subject: Updated llvm-objdump with Mach-O files and the -objc-meta-data option so
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=f8a3ad7e76c62f1e0d1d6f505d43182f4d398659;p=llvm

Updated llvm-objdump with Mach-O files and the -objc-meta-data option so
that it symbolically prints the superclass when it has dyld bind info for it.

rdar://7638823


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305866 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/tools/llvm-objdump/X86/macho-objc-meta-data.test b/test/tools/llvm-objdump/X86/macho-objc-meta-data.test
index 0bdb39cdff8..0c38a649c5a 100644
--- a/test/tools/llvm-objdump/X86/macho-objc-meta-data.test
+++ b/test/tools/llvm-objdump/X86/macho-objc-meta-data.test
@@ -1042,7 +1042,7 @@ PROTOCOL:     class_methods 0x00000000 (not in an __OBJC section)
 OBJC2_64BIT_DYLIB: Contents of (__DATA_CONST,__objc_classlist) section
 OBJC2_64BIT_DYLIB: 000000000000c038 0x8030 _OBJC_CLASS_$_Test
 OBJC2_64BIT_DYLIB:            isa 0x8008 _OBJC_METACLASS_$_Test
-OBJC2_64BIT_DYLIB:     superclass 0x0
+OBJC2_64BIT_DYLIB:     superclass 0x0 _OBJC_CLASS_$_NSObject
 OBJC2_64BIT_DYLIB:          cache 0x0
 OBJC2_64BIT_DYLIB:         vtable 0x0
 OBJC2_64BIT_DYLIB:           data 0xc120 (struct class_ro_t *)
@@ -1081,7 +1081,7 @@ OBJC2_64BIT_DYLIB: 			     name 0x4f42 testProp
 OBJC2_64BIT_DYLIB: 			attributes 0x4f4b TQ,V_testProp
 OBJC2_64BIT_DYLIB: Meta Class
 OBJC2_64BIT_DYLIB:            isa 0x0
-OBJC2_64BIT_DYLIB:     superclass 0x0
+OBJC2_64BIT_DYLIB:     superclass 0x0 _OBJC_METACLASS_$_NSObject
 OBJC2_64BIT_DYLIB:          cache 0x0
 OBJC2_64BIT_DYLIB:         vtable 0x0
 OBJC2_64BIT_DYLIB:           data 0xc048 (struct class_ro_t *)
diff --git a/tools/llvm-objdump/MachODump.cpp b/tools/llvm-objdump/MachODump.cpp
index 99d2dbd3017..960ef6be414 100644
--- a/tools/llvm-objdump/MachODump.cpp
+++ b/tools/llvm-objdump/MachODump.cpp
@@ -4573,6 +4573,12 @@ static void print_class64_t(uint64_t p, struct DisassembleInfo *info) {
                        n_value, c.superclass);
   if (name != nullptr)
     outs() << " " << name;
+  else {
+    name = get_dyld_bind_info_symbolname(S.getAddress() +
+             offset + offsetof(struct class64_t, superclass), info);
+    if (name != nullptr)
+      outs() << " " << name;
+  }
   outs() << "\n";
 
   outs() << "         cache " << format("0x%" PRIx64, c.cache);