Support reading .zdebug_* DWARF sections compressed via zlib.

1 files changed, 23 insertions, 1 deletions

diff --git a/libdw/dwarf_end.c b/libdw/dwarf_end.c
index ec10542e..1e733cae 100644
--- a/libdw/dwarf_end.c
+++ b/libdw/dwarf_end.c
@@ -1,5 +1,5 @@
 /* Release debugging handling context.
-   Copyright (C) 2002-2010 Red Hat, Inc.
+   Copyright (C) 2002-2011 Red Hat, Inc.
    This file is part of Red Hat elfutils.
    Written by Ulrich Drepper <[email protected]>, 2002.
 
@@ -54,6 +54,8 @@
 
 #include <search.h>
 #include <stdlib.h>
+#include <assert.h>
+#include <string.h>
 
 #include "libdwP.h"
 #include "cfi.h"
@@ -76,6 +78,24 @@ cu_free (void *arg)
 }
 
 
+#if USE_ZLIB
+void
+internal_function
+__libdw_free_zdata (Dwarf *dwarf)
+{
+  unsigned int gzip_mask = dwarf->sectiondata_gzip_mask;
+  while (gzip_mask != 0)
+    {
+      int i = ffs (gzip_mask);
+      assert (i > 0);
+      --i;
+      assert (i < IDX_last);
+      free (dwarf->sectiondata[i]);
+      gzip_mask &= ~(1U << i);
+    }
+}
+#endif
+
 int
 dwarf_end (dwarf)
      Dwarf *dwarf;
@@ -106,6 +126,8 @@ dwarf_end (dwarf)
       /* Free the pubnames helper structure.  */
       free (dwarf->pubnames_sets);
 
+      __libdw_free_zdata (dwarf);
+
       /* Free the ELF descriptor if necessary.  */
       if (dwarf->free_elf)
 	elf_end (dwarf->elf);