* configure.ac (AC_SEARCH_LIBS): Add check for zlib.

	* config.in, configure: Regenerate.
	* dwarf2read.c: Include zlib.h if present.
	Modified *_SECTION macros.
	(section_is_p): New.
	(dwarf2_locate_sections): Use section_is_p instead of strcmp
	(dwarf2_resize_section): New.
	to determine whether a given section has a given name.
	(zlib_decompress_section): New.
	(dwarf2_read_section): Read the compressed section if present
	in the binary.
	* testsuite/gdb.dwarf2/dw2-compressed.S: New file.
	* testsuite/gdb.dwarf2/dw2-compressed.exp: New file.
	* MAINTAINERS: Added myself to section Write After Approval.

9 files changed, 1025 insertions, 23 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 5d371ef..4f73ced 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,18 @@
+2008-04-18  Craig Silverstein   <csilvers@google.com>
+
+	* configure.ac (AC_SEARCH_LIBS): Add check for zlib.
+	* config.in, configure: Regenerate.
+	* dwarf2read.c: Include zlib.h if present.
+	Modified *_SECTION macros.
+	(section_is_p): New.
+	(dwarf2_locate_sections): Use section_is_p instead of strcmp
+	(dwarf2_resize_section): New.
+	to determine whether a given section has a given name.
+	(zlib_decompress_section): New.
+	(dwarf2_read_section): Read the compressed section if present
+	in the binary.
+	* MAINTAINERS: Added myself to section Write After Approval.
+	
 2008-04-18  Thiago Jung Bauermann  <bauerman@br.ibm.com>
 
 	* defs.h (exec_set_section_offsets): Remove prototype.
diff --git a/gdb/MAINTAINERS b/gdb/MAINTAINERS
index 4ef0277..ab068f1 100644
--- a/gdb/MAINTAINERS
+++ b/gdb/MAINTAINERS
@@ -564,6 +564,7 @@ Keith Seitz					keiths@redhat.com
 Carlos Eduardo Seo				cseo@linux.vnet.ibm.com
 Stan Shebs					shebs@mozilla.com
 Mark Shinwell					shinwell@codesourcery.com
+Craig Silverstein				csilvers@google.com
 Aidan Skinner					aidan@velvet.net
 Jiri Smid					smid@suse.cz
 David Smith					dsmith@redhat.com
diff --git a/gdb/config.in b/gdb/config.in
index 07f6fca..934b66c 100644
--- a/gdb/config.in
+++ b/gdb/config.in
@@ -527,6 +527,9 @@
 /* Define to 1 if you have the `XML_StopParser' function. */
 #undef HAVE_XML_STOPPARSER
 
+/* Define to 1 if you have the <zlib.h> header file. */
+#undef HAVE_ZLIB_H
+
 /* Define to 1 if your system has the _etext variable. */
 #undef HAVE__ETEXT
 
diff --git a/gdb/configure b/gdb/configure
index 021c46f..229515c 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -9595,6 +9595,560 @@ if test "$ac_cv_search_socketpair" != no; then
 fi
 
 
+# Link in zlib if we can.  This allows us to read compressed debug sections.
+echo "$as_me:$LINENO: checking for library containing zlibVersion" >&5
+echo $ECHO_N "checking for library containing zlibVersion... $ECHO_C" >&6
+if test "${ac_cv_search_zlibVersion+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+ac_cv_search_zlibVersion=no
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char zlibVersion ();
+int
+main ()
+{
+zlibVersion ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_search_zlibVersion="none required"
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+if test "$ac_cv_search_zlibVersion" = no; then
+  for ac_lib in z; do
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+    cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char zlibVersion ();
+int
+main ()
+{
+zlibVersion ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_search_zlibVersion="-l$ac_lib"
+break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+  done
+fi
+LIBS=$ac_func_search_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_search_zlibVersion" >&5
+echo "${ECHO_T}$ac_cv_search_zlibVersion" >&6
+if test "$ac_cv_search_zlibVersion" != no; then
+  test "$ac_cv_search_zlibVersion" = "none required" || LIBS="$ac_cv_search_zlibVersion $LIBS"
+
+for ac_header in zlib.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+else
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_header_compiler=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  ac_header_preproc=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+  yes:no: )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
+    ac_header_preproc=yes
+    ;;
+  no:yes:* )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header:     check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header:     check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
+    (
+      cat <<\_ASBOX
+## ------------------------------------------ ##
+## Report this to the AC_PACKAGE_NAME lists.  ##
+## ------------------------------------------ ##
+_ASBOX
+    ) |
+      sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=\$ac_header_preproc"
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+
+fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+fi
+
+
+# Link in zlib if we can.  This allows us to read compressed debug sections.
+echo "$as_me:$LINENO: checking for library containing zlibVersion" >&5
+echo $ECHO_N "checking for library containing zlibVersion... $ECHO_C" >&6
+if test "${ac_cv_search_zlibVersion+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+ac_cv_search_zlibVersion=no
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char zlibVersion ();
+int
+main ()
+{
+zlibVersion ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_search_zlibVersion="none required"
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+if test "$ac_cv_search_zlibVersion" = no; then
+  for ac_lib in z; do
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+    cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char zlibVersion ();
+int
+main ()
+{
+zlibVersion ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_search_zlibVersion="-l$ac_lib"
+break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+  done
+fi
+LIBS=$ac_func_search_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_search_zlibVersion" >&5
+echo "${ECHO_T}$ac_cv_search_zlibVersion" >&6
+if test "$ac_cv_search_zlibVersion" != no; then
+  test "$ac_cv_search_zlibVersion" = "none required" || LIBS="$ac_cv_search_zlibVersion $LIBS"
+
+for ac_header in zlib.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+else
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_header_compiler=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  ac_header_preproc=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+  yes:no: )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
+    ac_header_preproc=yes
+    ;;
+  no:yes:* )
+    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header:     check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header:     check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+    { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
+    (
+      cat <<\_ASBOX
+## ------------------------------------------ ##
+## Report this to the AC_PACKAGE_NAME lists.  ##
+## ------------------------------------------ ##
+_ASBOX
+    ) |
+      sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  eval "$as_ac_Header=\$ac_header_preproc"
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+
+fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+fi
+
+
 # For the TUI, we need enhanced curses functionality.
 #
 # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
diff --git a/gdb/configure.ac b/gdb/configure.ac
index 43aa2dd..101dedf 100644
--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -399,6 +399,9 @@ AC_SEARCH_LIBS(gethostbyname, nsl)
 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
 AC_SEARCH_LIBS(socketpair, socket)
 
+# Link in zlib if we can.  This allows us to read compressed debug sections.
+AC_SEARCH_LIBS(zlibVersion, z, [AC_CHECK_HEADERS(zlib.h)])
+
 # For the TUI, we need enhanced curses functionality.
 #
 # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c
index e000e2b..4b08e43 100644
--- a/gdb/dwarf2read.c
+++ b/gdb/dwarf2read.c
@@ -50,6 +50,9 @@
 #include "gdb_string.h"
 #include "gdb_assert.h"
 #include <sys/types.h>
+#ifdef HAVE_ZLIB_H
+#include <zlib.h>
+#endif
 
 /* A note on memory usage for this file.
    
@@ -195,17 +198,20 @@ asection *dwarf_eh_frame_section;
 
 /* names of the debugging sections */
 
-#define INFO_SECTION     ".debug_info"
-#define ABBREV_SECTION   ".debug_abbrev"
-#define LINE_SECTION     ".debug_line"
-#define PUBNAMES_SECTION ".debug_pubnames"
-#define ARANGES_SECTION  ".debug_aranges"
-#define LOC_SECTION      ".debug_loc"
-#define MACINFO_SECTION  ".debug_macinfo"
-#define STR_SECTION      ".debug_str"
-#define RANGES_SECTION   ".debug_ranges"
-#define FRAME_SECTION    ".debug_frame"
-#define EH_FRAME_SECTION ".eh_frame"
+/* Note that if the debugging section has been compressed, it might
+   have a name like .zdebug_info.  */
+
+#define INFO_SECTION     "debug_info"
+#define ABBREV_SECTION   "debug_abbrev"
+#define LINE_SECTION     "debug_line"
+#define PUBNAMES_SECTION "debug_pubnames"
+#define ARANGES_SECTION  "debug_aranges"
+#define LOC_SECTION      "debug_loc"
+#define MACINFO_SECTION  "debug_macinfo"
+#define STR_SECTION      "debug_str"
+#define RANGES_SECTION   "debug_ranges"
+#define FRAME_SECTION    "debug_frame"
+#define EH_FRAME_SECTION "eh_frame"
 
 /* local data types */
 
@@ -1109,6 +1115,18 @@ dwarf2_has_info (struct objfile *objfile)
   return (dwarf_info_section != NULL && dwarf_abbrev_section != NULL);
 }
 
+/* When loading sections, we can either look for ".<name>", or for
+ * ".z<name>", which indicates a compressed section.  */
+
+static int
+section_is_p (asection *sectp, const char *name)
+{
+  return ((sectp->name[0] == '.'
+           && strcmp (sectp->name + 1, name) == 0)
+          || (sectp->name[0] == '.' && sectp->name[1] == 'z'
+              && strcmp (sectp->name + 2, name) == 0));
+}
+
 /* This function is mapped across the sections and remembers the
    offset and size of each of the debugging sections we are interested
    in.  */
@@ -1116,52 +1134,52 @@ dwarf2_has_info (struct objfile *objfile)
 static void
 dwarf2_locate_sections (bfd *abfd, asection *sectp, void *ignore_ptr)
 {
-  if (strcmp (sectp->name, INFO_SECTION) == 0)
+  if (section_is_p (sectp, INFO_SECTION))
     {
       dwarf2_per_objfile->info_size = bfd_get_section_size (sectp);
       dwarf_info_section = sectp;
     }
-  else if (strcmp (sectp->name, ABBREV_SECTION) == 0)
+  else if (section_is_p (sectp, ABBREV_SECTION))
     {
       dwarf2_per_objfile->abbrev_size = bfd_get_section_size (sectp);
       dwarf_abbrev_section = sectp;
     }
-  else if (strcmp (sectp->name, LINE_SECTION) == 0)
+  else if (section_is_p (sectp, LINE_SECTION))
     {
       dwarf2_per_objfile->line_size = bfd_get_section_size (sectp);
       dwarf_line_section = sectp;
     }
-  else if (strcmp (sectp->name, PUBNAMES_SECTION) == 0)
+  else if (section_is_p (sectp, PUBNAMES_SECTION))
     {
       dwarf2_per_objfile->pubnames_size = bfd_get_section_size (sectp);
       dwarf_pubnames_section = sectp;
     }
-  else if (strcmp (sectp->name, ARANGES_SECTION) == 0)
+  else if (section_is_p (sectp, ARANGES_SECTION))
     {
       dwarf2_per_objfile->aranges_size = bfd_get_section_size (sectp);
       dwarf_aranges_section = sectp;
     }
-  else if (strcmp (sectp->name, LOC_SECTION) == 0)
+  else if (section_is_p (sectp, LOC_SECTION))
     {
       dwarf2_per_objfile->loc_size = bfd_get_section_size (sectp);
       dwarf_loc_section = sectp;
     }
-  else if (strcmp (sectp->name, MACINFO_SECTION) == 0)
+  else if (section_is_p (sectp, MACINFO_SECTION))
     {
       dwarf2_per_objfile->macinfo_size = bfd_get_section_size (sectp);
       dwarf_macinfo_section = sectp;
     }
-  else if (strcmp (sectp->name, STR_SECTION) == 0)
+  else if (section_is_p (sectp, STR_SECTION))
     {
       dwarf2_per_objfile->str_size = bfd_get_section_size (sectp);
       dwarf_str_section = sectp;
     }
-  else if (strcmp (sectp->name, FRAME_SECTION) == 0)
+  else if (section_is_p (sectp, FRAME_SECTION))
     {
       dwarf2_per_objfile->frame_size = bfd_get_section_size (sectp);
       dwarf_frame_section = sectp;
     }
-  else if (strcmp (sectp->name, EH_FRAME_SECTION) == 0)
+  else if (section_is_p (sectp, EH_FRAME_SECTION))
     {
       flagword aflag = bfd_get_section_flags (ignore_abfd, sectp);
       if (aflag & SEC_HAS_CONTENTS)
@@ -1170,7 +1188,7 @@ dwarf2_locate_sections (bfd *abfd, asection *sectp, void *ignore_ptr)
           dwarf_eh_frame_section = sectp;
         }
     }
-  else if (strcmp (sectp->name, RANGES_SECTION) == 0)
+  else if (section_is_p (sectp, RANGES_SECTION))
     {
       dwarf2_per_objfile->ranges_size = bfd_get_section_size (sectp);
       dwarf_ranges_section = sectp;
@@ -1181,6 +1199,40 @@ dwarf2_locate_sections (bfd *abfd, asection *sectp, void *ignore_ptr)
     dwarf2_per_objfile->has_section_at_zero = 1;
 }
 
+/* This function is called after decompressing a section, so
+   dwarf2_per_objfile can record its new, uncompressed size.  */
+
+static void
+dwarf2_resize_section (asection *sectp, bfd_size_type new_size)
+{
+  if (section_is_p (sectp, INFO_SECTION))
+    dwarf2_per_objfile->info_size = new_size;
+  else if (section_is_p (sectp, ABBREV_SECTION))
+    dwarf2_per_objfile->abbrev_size = new_size;
+  else if (section_is_p (sectp, LINE_SECTION))
+    dwarf2_per_objfile->line_size = new_size;
+  else if (section_is_p (sectp, PUBNAMES_SECTION))
+    dwarf2_per_objfile->pubnames_size = new_size;
+  else if (section_is_p (sectp, ARANGES_SECTION))
+    dwarf2_per_objfile->aranges_size = new_size;
+  else if (section_is_p (sectp, LOC_SECTION))
+    dwarf2_per_objfile->loc_size = new_size;
+  else if (section_is_p (sectp, MACINFO_SECTION))
+    dwarf2_per_objfile->macinfo_size = new_size;
+  else if (section_is_p (sectp, STR_SECTION))
+    dwarf2_per_objfile->str_size = new_size;
+  else if (section_is_p (sectp, FRAME_SECTION))
+    dwarf2_per_objfile->frame_size = new_size;
+  else if (section_is_p (sectp, EH_FRAME_SECTION))
+    dwarf2_per_objfile->eh_frame_size = new_size;
+  else if (section_is_p (sectp, RANGES_SECTION))
+    dwarf2_per_objfile->ranges_size = new_size;
+  else
+    internal_error (__FILE__, __LINE__,
+		    _("dwarf2_resize_section: missing section_is_p check: %s"),
+                    sectp->name);
+}
+
 /* Build a partial symbol table.  */
 
 void
@@ -5236,8 +5288,87 @@ free_die_list (struct die_info *dies)
     }
 }
 
+/* Decompress a section that was compressed using zlib.  Store the
+   decompressed buffer, and its size, in OUTBUF and OUTSIZE.  */
+
+static void
+zlib_decompress_section (struct objfile *objfile, asection *sectp,
+                         gdb_byte **outbuf, bfd_size_type *outsize)
+{
+#ifndef HAVE_ZLIB_H
+  error (_("Support for zlib-compressed DWARF data (from '%s') "
+           "is disabled in this copy of GDB"),
+         bfd_get_filename (abfd));
+#else
+  bfd *abfd = objfile->obfd;
+  bfd_size_type compressed_size = bfd_get_section_size (sectp);
+  gdb_byte *compressed_buffer = xmalloc (compressed_size);
+  bfd_size_type uncompressed_size;
+  gdb_byte *uncompressed_buffer;
+  z_stream strm;
+  int rc;
+  int header_size = 12;
+
+  if (bfd_seek (abfd, sectp->filepos, SEEK_SET) != 0
+      || bfd_bread (compressed_buffer, compressed_size, abfd) != compressed_size)
+    error (_("Dwarf Error: Can't read DWARF data from '%s'"),
+           bfd_get_filename (abfd));
+
+  /* Read the zlib header.  In this case, it should be "ZLIB" followed
+     by the uncompressed section size, 8 bytes in big-endian order.  */
+  if (compressed_size < header_size
+      || strncmp (compressed_buffer, "ZLIB", 4) != 0)
+    error (_("Dwarf Error: Corrupt DWARF ZLIB header from '%s'"),
+           bfd_get_filename (abfd));
+  uncompressed_size = compressed_buffer[4]; uncompressed_size <<= 8;
+  uncompressed_size += compressed_buffer[5]; uncompressed_size <<= 8;
+  uncompressed_size += compressed_buffer[6]; uncompressed_size <<= 8;
+  uncompressed_size += compressed_buffer[7]; uncompressed_size <<= 8;
+  uncompressed_size += compressed_buffer[8]; uncompressed_size <<= 8;
+  uncompressed_size += compressed_buffer[9]; uncompressed_size <<= 8;
+  uncompressed_size += compressed_buffer[10]; uncompressed_size <<= 8;
+  uncompressed_size += compressed_buffer[11];
+
+  /* It is possible the section consists of several compressed
+     buffers concatenated together, so we uncompress in a loop.  */
+  strm.zalloc = NULL;
+  strm.zfree = NULL;
+  strm.opaque = NULL;
+  strm.avail_in = compressed_size - header_size;
+  strm.next_in = (Bytef*) compressed_buffer + header_size;
+  strm.avail_out = uncompressed_size;
+  uncompressed_buffer = obstack_alloc (&objfile->objfile_obstack,
+                                       uncompressed_size);
+  rc = inflateInit (&strm);
+  while (strm.avail_in > 0)
+    {
+      if (rc != Z_OK)
+        error (_("Dwarf Error: setting up DWARF uncompression in '%s': %d"),
+               bfd_get_filename (abfd), rc);
+      strm.next_out = ((Bytef*) uncompressed_buffer
+                       + (uncompressed_size - strm.avail_out));
+      rc = inflate (&strm, Z_FINISH);
+      if (rc != Z_STREAM_END)
+        error (_("Dwarf Error: zlib error uncompressing from '%s': %d"),
+               bfd_get_filename (abfd), rc);
+      rc = inflateReset (&strm);
+    }
+  rc = inflateEnd (&strm);
+  if (rc != Z_OK
+      || strm.avail_out != 0)
+    error (_("Dwarf Error: concluding DWARF uncompression in '%s': %d"),
+           bfd_get_filename (abfd), rc);
+
+  xfree (compressed_buffer);
+  *outbuf = uncompressed_buffer;
+  *outsize = uncompressed_size;
+#endif
+}
+
+
 /* Read the contents of the section at OFFSET and of size SIZE from the
-   object file specified by OBJFILE into the objfile_obstack and return it.  */
+   object file specified by OBJFILE into the objfile_obstack and return it.
+   If the section is compressed, uncompress it before returning.  */
 
 gdb_byte *
 dwarf2_read_section (struct objfile *objfile, asection *sectp)
@@ -5245,11 +5376,31 @@ dwarf2_read_section (struct objfile *objfile, asection *sectp)
   bfd *abfd = objfile->obfd;
   gdb_byte *buf, *retbuf;
   bfd_size_type size = bfd_get_section_size (sectp);
+  unsigned char header[4];
 
   if (size == 0)
     return NULL;
 
+  /* Check if the file has a 4-byte header indicating compression.  */
+  if (size > sizeof (header)
+      && bfd_seek (abfd, sectp->filepos, SEEK_SET) == 0
+      && bfd_bread (header, sizeof (header), abfd) == sizeof (header))
+    {
+      /* Upon decompression, update the buffer and its size.  */
+      if (strncmp (header, "ZLIB", sizeof (header)) == 0)
+        {
+          zlib_decompress_section (objfile, sectp, &buf, &size);
+          dwarf2_resize_section (sectp, size);
+          return buf;
+        }
+    }
+
+  /* If we get here, we are a normal, not-compressed section.  */
   buf = obstack_alloc (&objfile->objfile_obstack, size);
+  /* When debugging .o files, we may need to apply relocations; see
+     http://sourceware.org/ml/gdb-patches/2002-04/msg00136.html .
+     We never compress sections in .o files, so we only need to
+     try this when the section is not compressed.  */
   retbuf = symfile_relocate_debug_section (abfd, sectp, buf);
   if (retbuf != NULL)
     return retbuf;
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 8c5c845..ae8cfe6 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2008-04-18  Craig Silverstein  <csilvers@google.com>
+
+	* gdb.dwarf2/dw2-compressed.S, gdb.dwarf2/dw2-compressed.exp: New
+	files.
+	
 2008-04-18  Joel Brobecker  <brobecker@adacore.com>
 
 	* gdb.ada/atomic_enum: New test program.
diff --git a/gdb/testsuite/gdb.dwarf2/dw2-compressed.S b/gdb/testsuite/gdb.dwarf2/dw2-compressed.S
new file mode 100644
index 0000000..8809f8e
--- /dev/null
+++ b/gdb/testsuite/gdb.dwarf2/dw2-compressed.S
@@ -0,0 +1,218 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2008 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* This tests that gdb can read compressed sections.  The contents
+   are the same as dw2-basic.S, but the .debug_abbrev section has been
+   comrpessed using zlib.  */
+
+/* Dummy function to provide debug information for.  */
+
+	.text
+	.globl _start
+_start:
+	.int 0
+.Lbegin_text1:
+	.globl func_cu1
+	.type func_cu1, %function
+func_cu1:
+.Lbegin_func_cu1:
+	.int 0
+.Lend_func_cu1:
+	.size func_cu1, .-func_cu1
+.Lend_text1:
+
+/* Debug information */
+
+	.section .debug_info
+.Lcu1_begin:
+	/* CU header */
+	.4byte	.Lcu1_end - .Lcu1_start		/* Length of Compilation Unit */
+.Lcu1_start:
+	.2byte	2				/* DWARF Version */
+	.4byte	.Labbrev1_begin			/* Offset into abbrev section */
+	.byte	4				/* Pointer size */
+
+	/* CU die */
+	.uleb128 1				/* Abbrev: DW_TAG_compile_unit */
+	.4byte	.Lline1_begin			/* DW_AT_stmt_list */
+	.4byte	.Lend_text1			/* DW_AT_high_pc */
+	.4byte	.Lbegin_text1			/* DW_AT_low_pc */
+	.ascii	"file1.txt\0"			/* DW_AT_name */
+	.ascii	"GNU C 3.3.3\0"			/* DW_AT_producer */
+	.byte	1				/* DW_AT_language (C) */
+
+	/* func_cu1 */
+	.uleb128	2			/* Abbrev: DW_TAG_subprogram */
+	.byte		1			/* DW_AT_external */
+	.byte		1			/* DW_AT_decl_file */
+	.byte		2			/* DW_AT_decl_line */
+	.ascii		"func_cu1\0"		/* DW_AT_name */
+	.4byte		.Ltype_int-.Lcu1_begin	/* DW_AT_type */
+	.4byte		.Lbegin_func_cu1	/* DW_AT_low_pc */
+	.4byte		.Lend_func_cu1		/* DW_AT_high_pc */
+	.byte		1			/* DW_AT_frame_base: length */
+	.byte		0x55			/* DW_AT_frame_base: DW_OP_reg5 */
+
+.Ltype_int:
+	.uleb128	3			/* Abbrev: DW_TAG_base_type */
+	.ascii		"int\0"			/* DW_AT_name */
+	.byte		4			/* DW_AT_byte_size */
+	.byte		5			/* DW_AT_encoding */
+
+	.byte		0			/* End of children of CU */
+
+.Lcu1_end:
+
+/* Line table */
+	.section .debug_line
+.Lline1_begin:
+	.4byte		.Lline1_end - .Lline1_start	/* Initial length */
+.Lline1_start:
+	.2byte		2			/* Version */
+	.4byte		.Lline1_lines - .Lline1_hdr	/* header_length */
+.Lline1_hdr:
+	.byte		1			/* Minimum insn length */
+	.byte		1			/* default_is_stmt */
+	.byte		1			/* line_base */
+ 	.byte		1			/* line_range */
+	.byte		0x10			/* opcode_base */
+
+	/* Standard lengths */
+	.byte		0
+	.byte		1
+	.byte		1
+	.byte		1
+	.byte		1
+	.byte		0
+	.byte		0
+	.byte		0
+	.byte		1
+	.byte		0
+	.byte		0
+	.byte		1
+	.byte		0
+	.byte		0
+	.byte		0
+
+	/* Include directories */
+	.byte		0
+
+	/* File names */
+	.ascii		"file1.txt\0"
+	.uleb128	0
+	.uleb128	0
+	.uleb128	0
+
+	.byte		0
+
+.Lline1_lines:
+	.byte		0	/* DW_LNE_set_address */
+	.uleb128	5
+	.byte		2
+	.4byte		.Lbegin_func_cu1
+
+	.byte		3	/* DW_LNS_advance_line */
+	.sleb128	3	/* ... to 4 */
+
+	.byte		1	/* DW_LNS_copy */
+
+	.byte		1	/* DW_LNS_copy (second time as an end-of-prologue marker) */
+
+	.byte		0	/* DW_LNE_set_address */
+	.uleb128	5
+	.byte		2
+	.4byte		.Lend_func_cu1
+
+	.byte		0	/* DW_LNE_end_of_sequence */
+	.uleb128	1
+	.byte		1
+
+.Lline1_end:
+
+/* Abbrev table -- compressed */
+	.section .zdebug_abbrev
+.Labbrev1_begin:
+	.ascii		"ZLIB"
+	.4byte		0
+	.2byte		0
+	.byte		0
+	.byte		51
+	.byte		0x78
+	.byte		0x5e
+	.byte		0x63
+	.byte		0x14
+	.byte		0x64
+	.byte		0x14
+	.byte		0x60
+	.byte		0x13
+	.byte		0x62
+	.byte		0x14
+	.byte		0x64
+	.byte		0x64
+	.byte		0xe6
+	.byte		0x50
+	.byte		0xe5
+	.byte		0x10
+	.byte		0xe6
+	.byte		0x66
+	.byte		0x60
+	.byte		0x60
+	.byte		0xd2
+	.byte		0x63
+	.byte		0xb0
+	.byte		0xe7
+	.byte		0xb1
+	.byte		0xe2
+	.byte		0xb6
+	.byte		0xe6
+	.byte		0x66
+	.byte		0xe6
+	.byte		0xf0
+	.byte		0x14
+	.byte		0x16
+	.byte		0x64
+	.byte		0x14
+	.byte		0x62
+	.byte		0x74
+	.byte		0xe0
+	.byte		0x02
+	.byte		0x00
+	.byte		0x25
+	.byte		0x78
+	.byte		0x02
+	.byte		0x81
+	.byte		0x78
+	.byte		0x9c
+	.byte		0x63
+	.byte		0x60
+	.byte		0x60
+	.byte		0x56
+	.byte		0x61
+	.byte		0x60
+	.byte		0xe6
+	.byte		0xe0
+	.byte		0xe6
+	.byte		0xb6
+	.byte		0xe3
+	.byte		0x66
+	.byte		0x00
+	.byte		0x02
+	.byte		0x00
+	.byte		0x04
+	.byte		0x9c
+	.byte		0x00
+	.byte		0x92
diff --git a/gdb/testsuite/gdb.dwarf2/dw2-compressed.exp b/gdb/testsuite/gdb.dwarf2/dw2-compressed.exp
new file mode 100644
index 0000000..4d6270f
--- /dev/null
+++ b/gdb/testsuite/gdb.dwarf2/dw2-compressed.exp
@@ -0,0 +1,52 @@
+# Copyright 2008 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Minimal DWARF-2 unit test
+
+# This test can only be run on targets which support DWARF-2 and use gas.
+# For now pick a sampling of likely targets.
+if {![istarget *-*-linux*]
+    && ![istarget *-*-gnu*]
+    && ![istarget *-*-elf*]
+    && ![istarget *-*-openbsd*]
+    && ![istarget arm-*-eabi*]
+    && ![istarget powerpc-*-eabi*]} {
+    return 0  
+}
+
+set testfile "dw2-compressed"
+set srcfile ${testfile}.S
+set binfile ${objdir}/${subdir}/${testfile}.x
+
+if  { [gdb_compile "${srcdir}/${subdir}/main.c" "main-ndebug.o" object -g0] != "" } {
+    return -1
+}
+
+if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${testfile}.o" object {nodebug}] != "" } {
+    return -1
+}
+
+if  { [gdb_compile "${testfile}.o main-ndebug.o -static -nostdlib" "${binfile}" executable {debug}] != "" } {
+    return -1
+}
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+gdb_test "set listsize 1" ""
+gdb_test "list func_cu1" "4\[ \t\]+File 1 Line 4"
+gdb_test "ptype func_cu1" "type = int \\(\\)"