Learn that __DATA,__objc_classrefs is not atomized via symbols.
This should hopefully fix objc on AArch64.
llvm-svn: 228976
diff --git a/llvm/lib/MC/MCAsmInfoDarwin.cpp b/llvm/lib/MC/MCAsmInfoDarwin.cpp
index f705490..a2a2504 100644
--- a/llvm/lib/MC/MCAsmInfoDarwin.cpp
+++ b/llvm/lib/MC/MCAsmInfoDarwin.cpp
@@ -33,6 +33,10 @@
if (SMO.getSegmentName() == "__DATA" && SMO.getSectionName() == "__cfstring")
return false;
+ if (SMO.getSegmentName() == "__DATA" &&
+ SMO.getSectionName() == "__objc_classrefs")
+ return false;
+
switch (SMO.getType()) {
default:
return true;
diff --git a/llvm/lib/Target/AArch64/MCTargetDesc/AArch64MachObjectWriter.cpp b/llvm/lib/Target/AArch64/MCTargetDesc/AArch64MachObjectWriter.cpp
index 6c554fd..0d9385d 100644
--- a/llvm/lib/Target/AArch64/MCTargetDesc/AArch64MachObjectWriter.cpp
+++ b/llvm/lib/Target/AArch64/MCTargetDesc/AArch64MachObjectWriter.cpp
@@ -134,6 +134,10 @@
RefSec.getSectionName() == "__cfstring")
return false;
+ if (RefSec.getSegmentName() == "__DATA" &&
+ RefSec.getSectionName() == "__objc_classrefs")
+ return false;
+
return true;
}
diff --git a/llvm/test/MC/MachO/AArch64/classrefs.s b/llvm/test/MC/MachO/AArch64/classrefs.s
new file mode 100644
index 0000000..5edc82c
--- /dev/null
+++ b/llvm/test/MC/MachO/AArch64/classrefs.s
@@ -0,0 +1,25 @@
+; RUN: llvm-mc -triple arm64-apple-darwin10 %s -filetype=obj -o - | llvm-readobj -r --expand-relocs | FileCheck %s
+
+; Test that we produce an external relocation with Lbar. We could also produce
+; an internal relocation. We just have to be careful to not use another symbol.
+
+// CHECK: Relocations [
+// CHECK-NEXT: Section __data {
+// CHECK-NEXT: Relocation {
+// CHECK-NEXT: Offset: 0x0
+// CHECK-NEXT: PCRel: 0
+// CHECK-NEXT: Length: 3
+// CHECK-NEXT: Extern: 1
+// CHECK-NEXT: Type: ARM64_RELOC_UNSIGNED (0)
+// CHECK-NEXT: Symbol: Lbar
+// CHECK-NEXT: Scattered: 0
+// CHECK-NEXT: }
+// CHECK-NEXT: }
+// CHECK-NEXT: ]
+
+ .section __DATA,__objc_classrefs,regular,no_dead_strip
+Lbar:
+
+ .section __DATA,__data
+ .quad Lbar
+