From: Mark Wielaard <mjw@redhat.com>
Date: Mon, 25 Mar 2013 16:07:21 +0000 (+0100)
Subject: libdw: dwarf_getsrclines mark highest address as end_sequence.
X-Git-Tag: elfutils-0.156~31
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=60ef9ab76eecfa175bc0bea4ab6005a947987781;p=thirdparty%2Felfutils.git

libdw: dwarf_getsrclines mark highest address as end_sequence.

Make sure the highest address for the CU is marked as end_sequence.
This is required by the DWARF spec, but some compilers forget and
dwfl_module_getsrc depends on it.  We could reject it as bad DWARF
but the DWARF .debug_lines spec is much stricter than what compilers
seem to output in practice.

Signed-off-by: Mark Wielaard <mjw@redhat.com>
---

diff --git a/libdw/ChangeLog b/libdw/ChangeLog
index 16acf5cd3..12df9bbe1 100644
--- a/libdw/ChangeLog
+++ b/libdw/ChangeLog
@@ -1,3 +1,8 @@
+2013-03-25  Mark Wielaard  <mjw@redhat.com>
+
+	* dwarf_getsrclines.c (dwarf_getsrclines): Mark highest address as
+	end_sequence.
+
 2013-03-12  Mark Wielaard  <mjw@redhat.com>
 
 	* dwarf_getsrcfiles.c (dwarf_getsrcfiles): Allow DW_TAG_partial_unit.
diff --git a/libdw/dwarf_getsrclines.c b/libdw/dwarf_getsrclines.c
index c24aebb59..5a58b7831 100644
--- a/libdw/dwarf_getsrclines.c
+++ b/libdw/dwarf_getsrclines.c
@@ -712,6 +712,11 @@ dwarf_getsrclines (Dwarf_Die *cudie, Dwarf_Lines **lines, size_t *nlines)
 	  cu->lines->info[i].files = files;
 	}
 
+      /* Make sure the highest address for the CU is marked as end_sequence.
+	 This is required by the DWARF spec, but some compilers forget and
+	 dwfl_module_getsrc depends on it.  */
+      cu->lines->info[nlinelist - 1].end_sequence = 1;
+
       /* Success.  */
       res = 0;
     }