Print the eh_frame section in MachoDump.

This is the start of work to dump the contents of the eh_frame section.

It currently emits CIE entries.  FDE entries will come later.

It also needs improved error checking which will follow soon.

http://reviews.llvm.org/D15502

Reviewed by Kevin Enderby and Lang Hames.

llvm-svn: 255546

2 files changed, 18 insertions, 0 deletions

diff --git a/llvm/test/tools/llvm-objdump/Inputs/eh_frame.macho-arm64 b/llvm/test/tools/llvm-objdump/Inputs/eh_frame.macho-arm64
new file mode 100644
index 00000000000..1c5413230d7
--- /dev/null
+++ b/llvm/test/tools/llvm-objdump/Inputs/eh_frame.macho-arm64
diff --git a/llvm/test/tools/llvm-objdump/eh_frame-arm64.test b/llvm/test/tools/llvm-objdump/eh_frame-arm64.test
new file mode 100644
index 00000000000..dbc6bcfcf91
--- /dev/null
+++ b/llvm/test/tools/llvm-objdump/eh_frame-arm64.test
@@ -0,0 +1,18 @@
+# RUN: llvm-objdump -unwind-info %p/Inputs/eh_frame.macho-arm64 2>/dev/null | FileCheck %s
+
+# CHECK: Contents of __eh_frame section:
+# CHECK: CIE:
+# CHECK:   Length: 16
+# CHECK:   CIE ID: 0
+# CHECK:   Version: 1
+# CHECK:   Augmentation String: zR
+# CHECK:   Code Alignment Factor: 1
+# CHECK:   Data Alignment Factor: -8
+# CHECK:   Return Address Register: 30
+# CHECK:   Augmentation Data Length: 1
+# CHECK:   FDE Address Pointer Encoding: 16
+# CHECK:   Instructions:
+# CHECK:   0c 1f 00 
+# CHECK: FDE:
+# CHECK:   Length: 32
+# CHECK:   e4 ff ff ff ff ff ff ff 20 00 00 00 00 00 00 00 00 48 0e 10 9e 01 9d 02 00 00 00 00