From: Paul Brook <paul@codesourcery.com>
Date: Tue, 8 Jun 2004 13:34:56 +0000 (+0000)
Subject: 	* gdb/dwarf2-frame.c (decode_frame_entry_1): Decode version 3 CIE
X-Git-Tag: csl-arm-2004-q3~1277
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=28ba0b33be60df63fca1d457b70bf791dc7c97ef;p=external%2Fbinutils.git

	* gdb/dwarf2-frame.c (decode_frame_entry_1): Decode version 3 CIE
	records.
---

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 370a5d9..973ad81 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2004-06-06  Paul Brook  <paul@codesourcery.com>
+
+	* gdb/dwarf2-frame.c (decode_frame_entry_1): Decode version 3 CIE
+	records.
+
 2004-06-08  Paul N. Hilfinger  <Hilfinger@gnat.com>
 
 	* ada-lang.c (lookup_symbol_in_language): New function to allow
diff --git a/gdb/dwarf2-frame.c b/gdb/dwarf2-frame.c
index fccb94d..52ca337 100644
--- a/gdb/dwarf2-frame.c
+++ b/gdb/dwarf2-frame.c
@@ -1268,6 +1268,7 @@ decode_frame_entry_1 (struct comp_unit *unit, char *start, int eh_frame_p)
       /* This is a CIE.  */
       struct dwarf2_cie *cie;
       char *augmentation;
+      unsigned int cie_version;
 
       /* Record the offset into the .debug_frame section of this CIE.  */
       cie_pointer = start - unit->dwarf_frame_buffer;
@@ -1288,7 +1289,8 @@ decode_frame_entry_1 (struct comp_unit *unit, char *start, int eh_frame_p)
       cie->encoding = encoding_for_size (unit->addr_size);
 
       /* Check version number.  */
-      if (read_1_byte (unit->abfd, buf) != DW_CIE_VERSION)
+      cie_version = read_1_byte (unit->abfd, buf);
+      if (cie_version != 1 && cie_version != 3)
 	return NULL;
       buf += 1;
 
@@ -1314,8 +1316,15 @@ decode_frame_entry_1 (struct comp_unit *unit, char *start, int eh_frame_p)
 	read_signed_leb128 (unit->abfd, buf, &bytes_read);
       buf += bytes_read;
 
-      cie->return_address_register = read_1_byte (unit->abfd, buf);
-      buf += 1;
+      if (cie_version == 1)
+	{
+	  cie->return_address_register = read_1_byte (unit->abfd, buf);
+	  bytes_read = 1;
+	}
+      else
+	cie->return_address_register = read_unsigned_leb128 (unit->abfd, buf,
+							     &bytes_read);
+      buf += bytes_read;
 
       cie->saw_z_augmentation = (*augmentation == 'z');
       if (cie->saw_z_augmentation)