Implement call frame information dumping.

1 files changed, 34 insertions, 0 deletions

diff --git a/libdw/dwarf.h b/libdw/dwarf.h
index f1261c36..091519c5 100644
--- a/libdw/dwarf.h
+++ b/libdw/dwarf.h
@@ -668,6 +668,40 @@ enum
     DW_CFA_high_user = 0x3f
   };
 
+/* ID indicating CIE as opposed to FDE in .debug_frame.  */
+enum
+  {
+    DW_CIE_ID = 0xffffffff
+  };
+
+
+/* Information for GNU unwind information.  */
+enum
+  {
+    DW_EH_PE_absptr = 0x00,
+    DW_EH_PE_omit = 0xff,
+
+    /* FDE data encoding.  */
+    DW_EH_PE_uleb128 = 0x01,
+    DW_EH_PE_udata2 = 0x02,
+    DW_EH_PE_udata4 = 0x03,
+    DW_EH_PE_udata8 = 0x04,
+    DW_EH_PE_sleb128 = 0x09,
+    DW_EH_PE_sdata2 = 0x0a,
+    DW_EH_PE_sdata4 = 0x0b,
+    DW_EH_PE_sdata8 = 0x0c,
+    DW_EH_PE_signed = 0x08,
+
+    /* FDE flags.  */
+    DW_EH_PE_pcrel = 0x10,
+    DW_EH_PE_textrel = 0x20,
+    DW_EH_PE_datarel = 0x30,
+    DW_EH_PE_funcrel = 0x40,
+    DW_EH_PE_aligned = 0x50,
+
+    DW_EH_PE_indirect = 0x80
+  };
+
 
 /* DWARF XXX.  */
 #define DW_ADDR_none	0