Add -Wshadow to the gcc command line options used when compiling the binutils.
[deliverable/binutils-gdb.git] / binutils / dwarf.c
index 56669be6fb8605b3866b9b9730e6846209eb9af5..eb6c2d70905731f09a2f21efdc46cf9e857a43ea 100644 (file)
@@ -1,12 +1,12 @@
 /* dwarf.c -- display DWARF contents of a BFD binary file
-   Copyright 2005, 2006
+   Copyright 2005, 2006, 2007, 2008, 2009
    Free Software Foundation, Inc.
 
    This file is part of GNU Binutils.
 
    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 2 of the License, or
+   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,
    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
    02110-1301, USA.  */
 
-#include <stdio.h>
-
-#include "dwarf.h"
-
-#include "bucomm.h"
+#include "sysdep.h"
 #include "libiberty.h"
+#include "bfd.h"
+#include "bucomm.h"
+#include "elf/common.h"
+#include "dwarf2.h"
+#include "dwarf.h"
 
 static int have_frame_base;
 static int need_base_address;
@@ -34,14 +35,17 @@ static int warned_about_missing_comp_units = FALSE;
 
 static unsigned int num_debug_info_entries = 0;
 static debug_info *debug_information = NULL;
+/* Special value for num_debug_info_entries to indicate
+   that the .debug_info section could not be loaded/parsed.  */
+#define DEBUG_INFO_UNAVAILABLE  (unsigned int) -1
 
-dwarf_vma eh_addr_size;
-int is_relocatable;
+int eh_addr_size;
 
 int do_debug_info;
 int do_debug_abbrevs;
 int do_debug_lines;
 int do_debug_pubnames;
+int do_debug_pubtypes;
 int do_debug_aranges;
 int do_debug_ranges;
 int do_debug_frames;
@@ -49,6 +53,11 @@ int do_debug_frames_interp;
 int do_debug_macinfo;
 int do_debug_str;
 int do_debug_loc;
+int do_wide;
+
+/* Values for do_debug_lines.  */
+#define FLAG_DEBUG_LINES_RAW    1
+#define FLAG_DEBUG_LINES_DECODED 2
 
 dwarf_vma (*byte_get) (unsigned char *, int);
 
@@ -64,6 +73,11 @@ byte_get_little_endian (unsigned char *field, int size)
       return  ((unsigned int) (field[0]))
        |    (((unsigned int) (field[1])) << 8);
 
+    case 3:
+      return  ((unsigned long) (field[0]))
+       |    (((unsigned long) (field[1])) << 8)
+       |    (((unsigned long) (field[2])) << 16);
+
     case 4:
       return  ((unsigned long) (field[0]))
        |    (((unsigned long) (field[1])) << 8)
@@ -106,6 +120,11 @@ byte_get_big_endian (unsigned char *field, int size)
     case 2:
       return ((unsigned int) (field[1])) | (((int) (field[0])) << 8);
 
+    case 3:
+      return ((unsigned long) (field[2]))
+       |   (((unsigned long) (field[1])) << 8)
+       |   (((unsigned long) (field[0])) << 16);
+
     case 4:
       return ((unsigned long) (field[3]))
        |   (((unsigned long) (field[2])) << 8)
@@ -159,6 +178,55 @@ byte_get_signed (unsigned char *field, int size)
     }
 }
 
+static int
+size_of_encoded_value (int encoding)
+{
+  switch (encoding & 0x7)
+    {
+    default:   /* ??? */
+    case 0:    return eh_addr_size;
+    case 2:    return 2;
+    case 3:    return 4;
+    case 4:    return 8;
+    }
+}
+
+static dwarf_vma
+get_encoded_value (unsigned char *data, int encoding)
+{
+  int size = size_of_encoded_value (encoding);
+
+  if (encoding & DW_EH_PE_signed)
+    return byte_get_signed (data, size);
+  else
+    return byte_get (data, size);
+}
+
+/* Print a dwarf_vma value (typically an address, offset or length) in
+   hexadecimal format, followed by a space.  The length of the value (and
+   hence the precision displayed) is determined by the byte_size parameter.  */
+
+static void
+print_dwarf_vma (dwarf_vma val, unsigned byte_size)
+{
+  static char buff[18];
+
+  /* Printf does not have a way of specifiying a maximum field width for an
+     integer value, so we print the full value into a buffer and then select
+     the precision we need.  */
+#if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2)
+#ifndef __MSVCRT__
+  snprintf (buff, sizeof (buff), "%16.16llx ", val);
+#else
+  snprintf (buff, sizeof (buff), "%016I64x ", val);
+#endif
+#else
+  snprintf (buff, sizeof (buff), "%16.16lx ", val);
+#endif
+
+  fputs (buff + (byte_size == 4 ? 8 : 0), stdout);
+}
+
 static unsigned long int
 read_leb128 (unsigned char *data, unsigned int *length_return, int sign)
 {
@@ -271,8 +339,52 @@ process_extended_line_op (unsigned char *data, int is_stmt)
       printf (_("%s\n\n"), name);
       break;
 
+    case DW_LNE_set_discriminator:
+      printf (_("set Discriminator to %lu\n"),
+              read_leb128 (data, & bytes_read, 0));
+      break;
+
+    /* HP extensions.  */
+    case DW_LNE_HP_negate_is_UV_update:
+      printf ("DW_LNE_HP_negate_is_UV_update\n");
+      break;
+    case DW_LNE_HP_push_context:
+      printf ("DW_LNE_HP_push_context\n");
+      break;
+    case DW_LNE_HP_pop_context:
+      printf ("DW_LNE_HP_pop_context\n");
+      break;
+    case DW_LNE_HP_set_file_line_column:
+      printf ("DW_LNE_HP_set_file_line_column\n");
+      break;
+    case DW_LNE_HP_set_routine_name:
+      printf ("DW_LNE_HP_set_routine_name\n");
+      break;
+    case DW_LNE_HP_set_sequence:
+      printf ("DW_LNE_HP_set_sequence\n");
+      break;
+    case DW_LNE_HP_negate_post_semantics:
+      printf ("DW_LNE_HP_negate_post_semantics\n");
+      break;
+    case DW_LNE_HP_negate_function_exit:
+      printf ("DW_LNE_HP_negate_function_exit\n");
+      break;
+    case DW_LNE_HP_negate_front_end_logical:
+      printf ("DW_LNE_HP_negate_front_end_logical\n");
+      break;
+    case DW_LNE_HP_define_proc:
+      printf ("DW_LNE_HP_define_proc\n");
+      break;
+
     default:
-      printf (_("UNKNOWN: length %d\n"), len - bytes_read);
+      if (op_code >= DW_LNE_lo_user
+         /* The test against DW_LNW_hi_user is redundant due to
+            the limited range of the unsigned char data type used
+            for op_code.  */
+         /*&& op_code <= DW_LNE_hi_user*/)
+       printf (_("user defined: length %d\n"), len - bytes_read);
+      else
+       printf (_("UNKNOWN: length %d\n"), len - bytes_read);
       break;
     }
 
@@ -326,23 +438,23 @@ static abbrev_entry *last_abbrev = NULL;
 static void
 free_abbrevs (void)
 {
-  abbrev_entry *abbrev;
+  abbrev_entry *abbrv;
 
-  for (abbrev = first_abbrev; abbrev;)
+  for (abbrv = first_abbrev; abbrv;)
     {
-      abbrev_entry *next = abbrev->next;
+      abbrev_entry *next_abbrev = abbrv->next;
       abbrev_attr *attr;
 
-      for (attr = abbrev->first_attr; attr;)
+      for (attr = abbrv->first_attr; attr;)
        {
-         abbrev_attr *next = attr->next;
+         abbrev_attr *next_attr = attr->next;
 
          free (attr);
-         attr = next;
+         attr = next_attr;
        }
 
-      free (abbrev);
-      abbrev = next;
+      free (abbrv);
+      abbrv = next_abbrev;
     }
 
   last_abbrev = first_abbrev = NULL;
@@ -353,7 +465,7 @@ add_abbrev (unsigned long number, unsigned long tag, int children)
 {
   abbrev_entry *entry;
 
-  entry = malloc (sizeof (*entry));
+  entry = (abbrev_entry *) malloc (sizeof (*entry));
 
   if (entry == NULL)
     /* ugg */
@@ -379,7 +491,7 @@ add_abbrev_attr (unsigned long attribute, unsigned long form)
 {
   abbrev_attr *attr;
 
-  attr = malloc (sizeof (*attr));
+  attr = (abbrev_attr *) malloc (sizeof (*attr));
 
   if (attr == NULL)
     /* ugg */
@@ -517,6 +629,12 @@ get_TAG_name (unsigned long tag)
     case DW_TAG_unspecified_type:      return "DW_TAG_unspecified_type";
     case DW_TAG_partial_unit:          return "DW_TAG_partial_unit";
     case DW_TAG_imported_unit:         return "DW_TAG_imported_unit";
+    case DW_TAG_condition:             return "DW_TAG_condition";
+    case DW_TAG_shared_type:           return "DW_TAG_shared_type";
+      /* DWARF 4 values.  */
+    case DW_TAG_type_unit:             return "DW_TAG_type_unit";
+    case DW_TAG_rvalue_reference_type: return "DW_TAG_rvalue_reference_type";
+    case DW_TAG_template_alias:                return "DW_TAG_template_alias";
       /* UPC values.  */
     case DW_TAG_upc_shared_type:       return "DW_TAG_upc_shared_type";
     case DW_TAG_upc_strict_type:       return "DW_TAG_upc_strict_type";
@@ -557,6 +675,11 @@ get_FORM_name (unsigned long form)
     case DW_FORM_ref8:         return "DW_FORM_ref8";
     case DW_FORM_ref_udata:    return "DW_FORM_ref_udata";
     case DW_FORM_indirect:     return "DW_FORM_indirect";
+      /* DWARF 4 values.  */
+    case DW_FORM_sec_offset:   return "DW_FORM_sec_offset";
+    case DW_FORM_exprloc:      return "DW_FORM_exprloc";
+    case DW_FORM_flag_present: return "DW_FORM_flag_present";
+    case DW_FORM_ref_sig8:     return "DW_FORM_ref_sig8";
     default:
       {
        static char buffer[100];
@@ -582,7 +705,8 @@ static int
 decode_location_expression (unsigned char * data,
                            unsigned int pointer_size,
                            unsigned long length,
-                           unsigned long cu_offset)
+                           unsigned long cu_offset,
+                           struct dwarf_section * section)
 {
   unsigned op;
   unsigned int bytes_read;
@@ -893,12 +1017,95 @@ decode_location_expression (unsigned char * data,
          data += 4;
          break;
        case DW_OP_call_ref:
-         printf ("DW_OP_call_ref");
+         /* XXX: Strictly speaking for 64-bit DWARF3 files
+            this ought to be an 8-byte wide computation.  */
+         printf ("DW_OP_call_ref: <%lx>", (long) byte_get (data, 4) + cu_offset);
+         data += 4;
+         break;
+       case DW_OP_form_tls_address:
+         printf ("DW_OP_form_tls_address");
+         break;
+       case DW_OP_call_frame_cfa:
+         printf ("DW_OP_call_frame_cfa");
+         break;
+       case DW_OP_bit_piece:
+         printf ("DW_OP_bit_piece: ");
+         printf ("size: %lu ", read_leb128 (data, &bytes_read, 0));
+         data += bytes_read;
+         printf ("offset: %lu ", read_leb128 (data, &bytes_read, 0));
+         data += bytes_read;
+         break;
+
+         /* DWARF 4 extensions.  */
+       case DW_OP_stack_value:
+         printf ("DW_OP_stack_value");
+         break;
+
+       case DW_OP_implicit_value:
+         printf ("DW_OP_implicit_value");
+         uvalue = read_leb128 (data, &bytes_read, 0);
+         data += bytes_read;
+         display_block (data, uvalue);
+         data += uvalue;
          break;
 
          /* GNU extensions.  */
        case DW_OP_GNU_push_tls_address:
-         printf ("DW_OP_GNU_push_tls_address");
+         printf ("DW_OP_GNU_push_tls_address or DW_OP_HP_unknown");
+         break;
+       case DW_OP_GNU_uninit:
+         printf ("DW_OP_GNU_uninit");
+         /* FIXME: Is there data associated with this OP ?  */
+         break;
+       case DW_OP_GNU_encoded_addr:
+         {
+           int encoding;
+           dwarf_vma addr;
+       
+           encoding = *data++;
+           addr = get_encoded_value (data, encoding);
+           if ((encoding & 0x70) == DW_EH_PE_pcrel)
+             addr += section->address + (data - section->start);
+           data += size_of_encoded_value (encoding);
+
+           printf ("DW_OP_GNU_encoded_addr: fmt:%02x addr:", encoding);
+           print_dwarf_vma (addr, pointer_size);
+         }
+         break;
+
+         /* HP extensions.  */
+       case DW_OP_HP_is_value:
+         printf ("DW_OP_HP_is_value");
+         /* FIXME: Is there data associated with this OP ?  */
+         break;
+       case DW_OP_HP_fltconst4:
+         printf ("DW_OP_HP_fltconst4");
+         /* FIXME: Is there data associated with this OP ?  */
+         break;
+       case DW_OP_HP_fltconst8:
+         printf ("DW_OP_HP_fltconst8");
+         /* FIXME: Is there data associated with this OP ?  */
+         break;
+       case DW_OP_HP_mod_range:
+         printf ("DW_OP_HP_mod_range");
+         /* FIXME: Is there data associated with this OP ?  */
+         break;
+       case DW_OP_HP_unmod_range:
+         printf ("DW_OP_HP_unmod_range");
+         /* FIXME: Is there data associated with this OP ?  */
+         break;
+       case DW_OP_HP_tls:
+         printf ("DW_OP_HP_tls");
+         /* FIXME: Is there data associated with this OP ?  */
+         break;
+
+         /* PGI (STMicroelectronics) extensions.  */
+       case DW_OP_PGI_omp_thread_num:
+         /* Pushes the thread number for the current thread as it would be
+            returned by the standard OpenMP library function:
+            omp_get_thread_num().  The "current thread" is the thread for
+            which the expression is being evaluated.  */
+         printf ("DW_OP_PGI_omp_thread_num");
          break;
 
        default:
@@ -922,16 +1129,18 @@ decode_location_expression (unsigned char * data,
 static unsigned char *
 read_and_display_attr_value (unsigned long attribute,
                             unsigned long form,
-                            unsigned char *data,
+                            unsigned char * data,
                             unsigned long cu_offset,
                             unsigned long pointer_size,
                             unsigned long offset_size,
                             int dwarf_version,
-                            debug_info *debug_info_p,
-                            int do_loc)
+                            debug_info * debug_info_p,
+                            int do_loc,
+                            struct dwarf_section * section)
 {
   unsigned long uvalue = 0;
   unsigned char *block_start = NULL;
+  unsigned char * orig_data = data;
   unsigned int bytes_read;
 
   switch (form)
@@ -1003,14 +1212,15 @@ read_and_display_attr_value (unsigned long attribute,
       return read_and_display_attr_value (attribute, form, data,
                                          cu_offset, pointer_size,
                                          offset_size, dwarf_version,
-                                         debug_info_p, do_loc);
+                                         debug_info_p, do_loc,
+                                         section);
     }
 
   switch (form)
     {
     case DW_FORM_ref_addr:
       if (!do_loc)
-       printf (" <#%lx>", uvalue);
+       printf (" <0x%lx>", uvalue);
       break;
 
     case DW_FORM_ref1:
@@ -1018,13 +1228,13 @@ read_and_display_attr_value (unsigned long attribute,
     case DW_FORM_ref4:
     case DW_FORM_ref_udata:
       if (!do_loc)
-       printf (" <%lx>", uvalue + cu_offset);
+       printf (" <0x%lx>", uvalue + cu_offset);
       break;
 
     case DW_FORM_data4:
     case DW_FORM_addr:
       if (!do_loc)
-       printf (" %#lx", uvalue);
+       printf (" 0x%lx", uvalue);
       break;
 
     case DW_FORM_flag:
@@ -1041,8 +1251,8 @@ read_and_display_attr_value (unsigned long attribute,
       if (!do_loc)
        {
          uvalue = byte_get (data, 4);
-         printf (" %lx", uvalue);
-         printf (" %lx", (unsigned long) byte_get (data + 4, 4));
+         printf (" 0x%lx", uvalue);
+         printf (" 0x%lx", (unsigned long) byte_get (data + 4, 4));
        }
       if ((do_loc || do_debug_loc || do_debug_ranges)
          && num_debug_info_entries == 0)
@@ -1107,12 +1317,26 @@ read_and_display_attr_value (unsigned long attribute,
       /* Handled above.  */
       break;
 
+    case DW_FORM_ref_sig8:
+      if (!do_loc)
+       {
+         int i;
+         printf (" signature: ");
+         for (i = 0; i < 8; i++)
+           {
+             printf ("%02x", (unsigned) byte_get (data, 1));
+             data += 1;
+           }
+       }
+      else
+        data += 8;
+      break;
+
     default:
       warn (_("Unrecognized form: %lu\n"), form);
       break;
     }
 
-  /* For some attributes we can display further information.  */
   if ((do_loc || do_debug_loc || do_debug_ranges)
       && num_debug_info_entries == 0)
     {
@@ -1121,37 +1345,36 @@ read_and_display_attr_value (unsigned long attribute,
        case DW_AT_frame_base:
          have_frame_base = 1;
        case DW_AT_location:
+       case DW_AT_string_length:
+       case DW_AT_return_addr:
        case DW_AT_data_member_location:
        case DW_AT_vtable_elem_location:
-       case DW_AT_allocated:
-       case DW_AT_associated:
-       case DW_AT_data_location:
-       case DW_AT_stride:
-       case DW_AT_upper_bound:
-       case DW_AT_lower_bound:
-         if (form == DW_FORM_data4 || form == DW_FORM_data8)
+       case DW_AT_segment:
+       case DW_AT_static_link:
+       case DW_AT_use_location:
+         if (form == DW_FORM_data4 || form == DW_FORM_data8)
            {
              /* Process location list.  */
-             unsigned int max = debug_info_p->max_loc_offsets;
+             unsigned int lmax = debug_info_p->max_loc_offsets;
              unsigned int num = debug_info_p->num_loc_offsets;
 
-             if (max == 0 || num >= max)
+             if (lmax == 0 || num >= lmax)
                {
-                 max += 1024;
-                 debug_info_p->loc_offsets
-                   = xcrealloc (debug_info_p->loc_offsets,
-                                max, sizeof (*debug_info_p->loc_offsets));
-                 debug_info_p->have_frame_base
-                   = xcrealloc (debug_info_p->have_frame_base,
-                                max, sizeof (*debug_info_p->have_frame_base));
-                 debug_info_p->max_loc_offsets = max;
+                 lmax += 1024;
+                 debug_info_p->loc_offsets = (long unsigned int *)
+                      xcrealloc (debug_info_p->loc_offsets,
+                                lmax, sizeof (*debug_info_p->loc_offsets));
+                 debug_info_p->have_frame_base = (int *)
+                      xcrealloc (debug_info_p->have_frame_base,
+                                lmax, sizeof (*debug_info_p->have_frame_base));
+                 debug_info_p->max_loc_offsets = lmax;
                }
              debug_info_p->loc_offsets [num] = uvalue;
              debug_info_p->have_frame_base [num] = have_frame_base;
              debug_info_p->num_loc_offsets++;
            }
          break;
-       
+
        case DW_AT_low_pc:
          if (need_base_address)
            debug_info_p->base_address = uvalue;
@@ -1161,16 +1384,16 @@ read_and_display_attr_value (unsigned long attribute,
          if (form == DW_FORM_data4 || form == DW_FORM_data8)
            {
              /* Process range list.  */
-             unsigned int max = debug_info_p->max_range_lists;
+             unsigned int lmax = debug_info_p->max_range_lists;
              unsigned int num = debug_info_p->num_range_lists;
 
-             if (max == 0 || num >= max)
+             if (lmax == 0 || num >= lmax)
                {
-                 max += 1024;
-                 debug_info_p->range_lists
-                   = xcrealloc (debug_info_p->range_lists,
-                                max, sizeof (*debug_info_p->range_lists));
-                 debug_info_p->max_range_lists = max;
+                 lmax += 1024;
+                 debug_info_p->range_lists = (long unsigned int *)
+                      xcrealloc (debug_info_p->range_lists,
+                                lmax, sizeof (*debug_info_p->range_lists));
+                 debug_info_p->max_range_lists = lmax;
                }
              debug_info_p->range_lists [num] = uvalue;
              debug_info_p->num_range_lists++;
@@ -1185,6 +1408,7 @@ read_and_display_attr_value (unsigned long attribute,
   if (do_loc)
     return data;
 
+  /* For some attributes we can display further information.  */
   printf ("\t");
 
   switch (attribute)
@@ -1213,26 +1437,39 @@ read_and_display_attr_value (unsigned long attribute,
     case DW_AT_language:
       switch (uvalue)
        {
-       case DW_LANG_C:                 printf ("(non-ANSI C)"); break;
+         /* Ordered by the numeric value of these constants.  */
        case DW_LANG_C89:               printf ("(ANSI C)"); break;
+       case DW_LANG_C:                 printf ("(non-ANSI C)"); break;
+       case DW_LANG_Ada83:             printf ("(Ada)"); break;
        case DW_LANG_C_plus_plus:       printf ("(C++)"); break;
+       case DW_LANG_Cobol74:           printf ("(Cobol 74)"); break;
+       case DW_LANG_Cobol85:           printf ("(Cobol 85)"); break;
        case DW_LANG_Fortran77:         printf ("(FORTRAN 77)"); break;
        case DW_LANG_Fortran90:         printf ("(Fortran 90)"); break;
-       case DW_LANG_Modula2:           printf ("(Modula 2)"); break;
        case DW_LANG_Pascal83:          printf ("(ANSI Pascal)"); break;
-       case DW_LANG_Ada83:             printf ("(Ada)"); break;
-       case DW_LANG_Cobol74:           printf ("(Cobol 74)"); break;
-       case DW_LANG_Cobol85:           printf ("(Cobol 85)"); break;
+       case DW_LANG_Modula2:           printf ("(Modula 2)"); break;
          /* DWARF 2.1 values.  */
+       case DW_LANG_Java:              printf ("(Java)"); break;
        case DW_LANG_C99:               printf ("(ANSI C99)"); break;
        case DW_LANG_Ada95:             printf ("(ADA 95)"); break;
        case DW_LANG_Fortran95:         printf ("(Fortran 95)"); break;
+         /* DWARF 3 values.  */
+       case DW_LANG_PLI:               printf ("(PLI)"); break;
+       case DW_LANG_ObjC:              printf ("(Objective C)"); break;
+       case DW_LANG_ObjC_plus_plus:    printf ("(Objective C++)"); break;
+       case DW_LANG_UPC:               printf ("(Unified Parallel C)"); break;
+       case DW_LANG_D:                 printf ("(D)"); break;
+         /* DWARF 4 values.  */
+       case DW_LANG_Python:            printf ("(Python)"); break;
          /* MIPS extension.  */
        case DW_LANG_Mips_Assembler:    printf ("(MIPS assembler)"); break;
          /* UPC extension.  */
        case DW_LANG_Upc:               printf ("(Unified Parallel C)"); break;
        default:
-         printf ("(Unknown: %lx)", uvalue);
+         if (uvalue >= DW_LANG_lo_user && uvalue <= DW_LANG_hi_user)
+           printf ("(implementation defined: %lx)", uvalue);
+         else
+           printf ("(Unknown: %lx)", uvalue);
          break;
        }
       break;
@@ -1249,9 +1486,24 @@ read_and_display_attr_value (unsigned long attribute,
        case DW_ATE_signed_char:        printf ("(signed char)"); break;
        case DW_ATE_unsigned:           printf ("(unsigned)"); break;
        case DW_ATE_unsigned_char:      printf ("(unsigned char)"); break;
-         /* DWARF 2.1 value.  */
+         /* DWARF 2.1 values:  */
        case DW_ATE_imaginary_float:    printf ("(imaginary float)"); break;
        case DW_ATE_decimal_float:      printf ("(decimal float)"); break;
+         /* DWARF 3 values:  */
+       case DW_ATE_packed_decimal:     printf ("(packed_decimal)"); break;
+       case DW_ATE_numeric_string:     printf ("(numeric_string)"); break;
+       case DW_ATE_edited:             printf ("(edited)"); break;
+       case DW_ATE_signed_fixed:       printf ("(signed_fixed)"); break;
+       case DW_ATE_unsigned_fixed:     printf ("(unsigned_fixed)"); break;
+         /* HP extensions:  */
+       case DW_ATE_HP_float80:         printf ("(HP_float80)"); break;
+       case DW_ATE_HP_complex_float80: printf ("(HP_complex_float80)"); break;
+       case DW_ATE_HP_float128:        printf ("(HP_float128)"); break;
+       case DW_ATE_HP_complex_float128:printf ("(HP_complex_float128)"); break;
+       case DW_ATE_HP_floathpintel:    printf ("(HP_floathpintel)"); break;
+       case DW_ATE_HP_imaginary_float80:       printf ("(HP_imaginary_float80)"); break;
+       case DW_ATE_HP_imaginary_float128:      printf ("(HP_imaginary_float128)"); break;
+
        default:
          if (uvalue >= DW_ATE_lo_user
              && uvalue <= DW_ATE_hi_user)
@@ -1332,8 +1584,16 @@ read_and_display_attr_value (unsigned long attribute,
     case DW_AT_frame_base:
       have_frame_base = 1;
     case DW_AT_location:
+    case DW_AT_string_length:
+    case DW_AT_return_addr:
     case DW_AT_data_member_location:
     case DW_AT_vtable_elem_location:
+    case DW_AT_segment:
+    case DW_AT_static_link:
+    case DW_AT_use_location:
+      if (form == DW_FORM_data4 || form == DW_FORM_data8)
+       printf (_("(location list)"));
+      /* Fall through.  */
     case DW_AT_allocated:
     case DW_AT_associated:
     case DW_AT_data_location:
@@ -1348,14 +1608,42 @@ read_and_display_attr_value (unsigned long attribute,
          need_frame_base = decode_location_expression (block_start,
                                                        pointer_size,
                                                        uvalue,
-                                                       cu_offset);
+                                                       cu_offset, section);
          printf (")");
          if (need_frame_base && !have_frame_base)
            printf (_(" [without DW_AT_frame_base]"));
        }
-      else if (form == DW_FORM_data4 || form == DW_FORM_data8)
-       printf (_("(location list)"));
+      break;
 
+    case DW_AT_import:
+      {
+        if (form == DW_FORM_ref_sig8)
+          break;
+
+       if (form == DW_FORM_ref1
+           || form == DW_FORM_ref2
+           || form == DW_FORM_ref4)
+         uvalue += cu_offset;
+
+       if (uvalue >= section->size)
+         warn (_("Offset %lx used as value for DW_AT_import attribute of DIE at offset %lx is too big.\n"),
+               uvalue, (unsigned long) (orig_data - section->start));
+       else
+         {
+           unsigned long abbrev_number;
+           abbrev_entry * entry;
+
+           abbrev_number = read_leb128 (section->start + uvalue, NULL, 0);
+
+           printf ("[Abbrev Number: %ld", abbrev_number);
+           for (entry = first_abbrev; entry != NULL; entry = entry->next)
+             if (entry->entry == abbrev_number)
+               break;
+           if (entry != NULL)
+             printf (" (%s)", get_TAG_name (entry->tag));
+           printf ("]");
+         }
+      }
       break;
 
     default:
@@ -1445,29 +1733,84 @@ get_AT_name (unsigned long attribute)
     case DW_AT_call_column:            return "DW_AT_call_column";
     case DW_AT_call_file:              return "DW_AT_call_file";
     case DW_AT_call_line:              return "DW_AT_call_line";
-      /* SGI/MIPS extensions.  */
-    case DW_AT_MIPS_fde:               return "DW_AT_MIPS_fde";
-    case DW_AT_MIPS_loop_begin:                return "DW_AT_MIPS_loop_begin";
-    case DW_AT_MIPS_tail_loop_begin:   return "DW_AT_MIPS_tail_loop_begin";
-    case DW_AT_MIPS_epilog_begin:      return "DW_AT_MIPS_epilog_begin";
-    case DW_AT_MIPS_loop_unroll_factor: return "DW_AT_MIPS_loop_unroll_factor";
-    case DW_AT_MIPS_software_pipeline_depth:
-      return "DW_AT_MIPS_software_pipeline_depth";
-    case DW_AT_MIPS_linkage_name:      return "DW_AT_MIPS_linkage_name";
-    case DW_AT_MIPS_stride:            return "DW_AT_MIPS_stride";
-    case DW_AT_MIPS_abstract_name:     return "DW_AT_MIPS_abstract_name";
-    case DW_AT_MIPS_clone_origin:      return "DW_AT_MIPS_clone_origin";
-    case DW_AT_MIPS_has_inlines:       return "DW_AT_MIPS_has_inlines";
+    case DW_AT_description:            return "DW_AT_description";
+    case DW_AT_binary_scale:           return "DW_AT_binary_scale";
+    case DW_AT_decimal_scale:          return "DW_AT_decimal_scale";
+    case DW_AT_small:                  return "DW_AT_small";
+    case DW_AT_decimal_sign:           return "DW_AT_decimal_sign";
+    case DW_AT_digit_count:            return "DW_AT_digit_count";
+    case DW_AT_picture_string:         return "DW_AT_picture_string";
+    case DW_AT_mutable:                        return "DW_AT_mutable";
+    case DW_AT_threads_scaled:         return "DW_AT_threads_scaled";
+    case DW_AT_explicit:               return "DW_AT_explicit";
+    case DW_AT_object_pointer:         return "DW_AT_object_pointer";
+    case DW_AT_endianity:              return "DW_AT_endianity";
+    case DW_AT_elemental:              return "DW_AT_elemental";
+    case DW_AT_pure:                   return "DW_AT_pure";
+    case DW_AT_recursive:              return "DW_AT_recursive";
+      /* DWARF 4 values.  */
+    case DW_AT_signature:              return "DW_AT_signature";
+    case DW_AT_main_subprogram:                return "DW_AT_main_subprogram";
+    case DW_AT_data_bit_offset:                return "DW_AT_data_bit_offset";
+    case DW_AT_const_expr:             return "DW_AT_const_expr";
+    case DW_AT_enum_class:             return "DW_AT_enum_class";
+    case DW_AT_linkage_name:           return "DW_AT_linkage_name";
+
+      /* HP and SGI/MIPS extensions.  */
+    case DW_AT_MIPS_loop_begin:                        return "DW_AT_MIPS_loop_begin";
+    case DW_AT_MIPS_tail_loop_begin:           return "DW_AT_MIPS_tail_loop_begin";
+    case DW_AT_MIPS_epilog_begin:              return "DW_AT_MIPS_epilog_begin";
+    case DW_AT_MIPS_loop_unroll_factor:        return "DW_AT_MIPS_loop_unroll_factor";
+    case DW_AT_MIPS_software_pipeline_depth:   return "DW_AT_MIPS_software_pipeline_depth";
+    case DW_AT_MIPS_linkage_name:              return "DW_AT_MIPS_linkage_name";
+    case DW_AT_MIPS_stride:                    return "DW_AT_MIPS_stride";
+    case DW_AT_MIPS_abstract_name:             return "DW_AT_MIPS_abstract_name";
+    case DW_AT_MIPS_clone_origin:              return "DW_AT_MIPS_clone_origin";
+    case DW_AT_MIPS_has_inlines:               return "DW_AT_MIPS_has_inlines";
+
+      /* HP Extensions.  */
+    case DW_AT_HP_block_index:                 return "DW_AT_HP_block_index";
+    case DW_AT_HP_actuals_stmt_list:           return "DW_AT_HP_actuals_stmt_list";
+    case DW_AT_HP_proc_per_section:            return "DW_AT_HP_proc_per_section";
+    case DW_AT_HP_raw_data_ptr:                        return "DW_AT_HP_raw_data_ptr";
+    case DW_AT_HP_pass_by_reference:           return "DW_AT_HP_pass_by_reference";
+    case DW_AT_HP_opt_level:                   return "DW_AT_HP_opt_level";
+    case DW_AT_HP_prof_version_id:             return "DW_AT_HP_prof_version_id";
+    case DW_AT_HP_opt_flags:                   return "DW_AT_HP_opt_flags";
+    case DW_AT_HP_cold_region_low_pc:          return "DW_AT_HP_cold_region_low_pc";
+    case DW_AT_HP_cold_region_high_pc:         return "DW_AT_HP_cold_region_high_pc";
+    case DW_AT_HP_all_variables_modifiable:    return "DW_AT_HP_all_variables_modifiable";
+    case DW_AT_HP_linkage_name:                        return "DW_AT_HP_linkage_name";
+    case DW_AT_HP_prof_flags:                  return "DW_AT_HP_prof_flags";
+
+      /* One value is shared by the MIPS and HP extensions:  */
+    case DW_AT_MIPS_fde:                       return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable";
+
       /* GNU extensions.  */
-    case DW_AT_sf_names:               return "DW_AT_sf_names";
-    case DW_AT_src_info:               return "DW_AT_src_info";
-    case DW_AT_mac_info:               return "DW_AT_mac_info";
-    case DW_AT_src_coords:             return "DW_AT_src_coords";
-    case DW_AT_body_begin:             return "DW_AT_body_begin";
-    case DW_AT_body_end:               return "DW_AT_body_end";
-    case DW_AT_GNU_vector:             return "DW_AT_GNU_vector";
+    case DW_AT_sf_names:                       return "DW_AT_sf_names";
+    case DW_AT_src_info:                       return "DW_AT_src_info";
+    case DW_AT_mac_info:                       return "DW_AT_mac_info";
+    case DW_AT_src_coords:                     return "DW_AT_src_coords";
+    case DW_AT_body_begin:                     return "DW_AT_body_begin";
+    case DW_AT_body_end:                       return "DW_AT_body_end";
+    case DW_AT_GNU_vector:                     return "DW_AT_GNU_vector";
+    case DW_AT_GNU_guarded_by:                 return "DW_AT_GNU_guarded_by";
+    case DW_AT_GNU_pt_guarded_by:              return "DW_AT_GNU_pt_guarded_by";
+    case DW_AT_GNU_guarded:                    return "DW_AT_GNU_guarded";
+    case DW_AT_GNU_pt_guarded:                 return "DW_AT_GNU_pt_guarded";
+    case DW_AT_GNU_locks_excluded:             return "DW_AT_GNU_locks_excluded";
+    case DW_AT_GNU_exclusive_locks_required:   return "DW_AT_GNU_exclusive_locks_required";
+    case DW_AT_GNU_shared_locks_required:      return "DW_AT_GNU_shared_locks_required";
+    case DW_AT_GNU_odr_signature:              return "DW_AT_GNU_odr_signature";
+
       /* UPC extension.  */
     case DW_AT_upc_threads_scaled:     return "DW_AT_upc_threads_scaled";
+
+    /* PGI (STMicroelectronics) extensions.  */
+    case DW_AT_PGI_lbase:              return "DW_AT_PGI_lbase";
+    case DW_AT_PGI_soffset:            return "DW_AT_PGI_soffset";
+    case DW_AT_PGI_lstride:            return "DW_AT_PGI_lstride";
+
     default:
       {
        static char buffer[100];
@@ -1482,20 +1825,21 @@ get_AT_name (unsigned long attribute)
 static unsigned char *
 read_and_display_attr (unsigned long attribute,
                       unsigned long form,
-                      unsigned char *data,
+                      unsigned char * data,
                       unsigned long cu_offset,
                       unsigned long pointer_size,
                       unsigned long offset_size,
                       int dwarf_version,
-                      debug_info *debug_info_p,
-                      int do_loc)
+                      debug_info * debug_info_p,
+                      int do_loc,
+                      struct dwarf_section * section)
 {
   if (!do_loc)
-    printf ("     %-18s:", get_AT_name (attribute));
+    printf ("   %-18s:", get_AT_name (attribute));
   data = read_and_display_attr_value (attribute, form, data, cu_offset,
                                      pointer_size, offset_size,
                                      dwarf_version, debug_info_p,
-                                     do_loc);
+                                     do_loc, section);
   if (!do_loc)
     printf ("\n");
   return data;
@@ -1504,11 +1848,14 @@ read_and_display_attr (unsigned long attribute,
 
 /* Process the contents of a .debug_info section.  If do_loc is non-zero
    then we are scanning for location lists and we do not want to display
-   anything to the user.  */
+   anything to the user.  If do_types is non-zero, we are processing
+   a .debug_types section instead of a .debug_info section.  */
 
 static int
-process_debug_info (struct dwarf_section *section, void *file,
-                   int do_loc)
+process_debug_info (struct dwarf_section *section,
+                   void *file,
+                   int do_loc,
+                   int do_types)
 {
   unsigned char *start = section->start;
   unsigned char *end = start + section->size;
@@ -1517,7 +1864,8 @@ process_debug_info (struct dwarf_section *section, void *file,
   unsigned int num_units = 0;
 
   if ((do_loc || do_debug_loc || do_debug_ranges)
-      && num_debug_info_entries == 0)
+      && num_debug_info_entries == 0
+      && ! do_types)
     {
       unsigned long length;
 
@@ -1535,8 +1883,22 @@ process_debug_info (struct dwarf_section *section, void *file,
              length = byte_get (section_begin + 4, 8);
              section_begin += length + 12;
            }
+         else if (length >= 0xfffffff0 && length < 0xffffffff)
+           {
+             warn (_("Reserved length value (%lx) found in section %s\n"), length, section->name);
+             return 0;
+           }
          else
            section_begin += length + 4;
+
+         /* Negative values are illegal, they may even cause infinite
+            looping.  This can happen if we can't accurately apply
+            relocations to an object file.  */
+         if ((signed long) length <= 0)
+           {
+             warn (_("Corrupt unit length (%lx) found in section %s\n"), length, section->name);
+             return 0;
+           }
        }
 
       if (num_units == 0)
@@ -1546,8 +1908,8 @@ process_debug_info (struct dwarf_section *section, void *file,
        }
 
       /* Then allocate an array to hold the information.  */
-      debug_information = cmalloc (num_units,
-                                  sizeof (* debug_information));
+      debug_information = (debug_info *) cmalloc (num_units,
+                                                  sizeof (* debug_information));
       if (debug_information == NULL)
        {
          error (_("Not enough memory for a debug info array of %u entries"),
@@ -1558,7 +1920,7 @@ process_debug_info (struct dwarf_section *section, void *file,
 
   if (!do_loc)
     {
-      printf (_("The section %s contains:\n\n"), section->name);
+      printf (_("Contents of the %s section:\n\n"), section->name);
 
       load_debug_section (str, file);
     }
@@ -1581,6 +1943,8 @@ process_debug_info (struct dwarf_section *section, void *file,
       unsigned long cu_offset;
       int offset_size;
       int initial_length_size;
+      unsigned char signature[8];
+      unsigned long type_offset = 0;
 
       hdrptr = start;
 
@@ -1604,7 +1968,6 @@ process_debug_info (struct dwarf_section *section, void *file,
       hdrptr += 2;
 
       cu_offset = start - section_begin;
-      start += compunit.cu_length + initial_length_size;
 
       cu_abbrev_offset_ptr = hdrptr;
       compunit.cu_abbrev_offset = byte_get (hdrptr, offset_size);
@@ -1612,8 +1975,24 @@ process_debug_info (struct dwarf_section *section, void *file,
 
       compunit.cu_pointer_size = byte_get (hdrptr, 1);
       hdrptr += 1;
+
+      if (do_types)
+        {
+          int i;
+
+          for (i = 0; i < 8; i++)
+            {
+              signature[i] = byte_get (hdrptr, 1);
+              hdrptr += 1;
+            }
+
+          type_offset = byte_get (hdrptr, offset_size);
+          hdrptr += offset_size;
+        }
+
       if ((do_loc || do_debug_loc || do_debug_ranges)
-         && num_debug_info_entries == 0)
+         && num_debug_info_entries == 0
+         && ! do_types)
        {
          debug_information [unit].cu_offset = cu_offset;
          debug_information [unit].pointer_size
@@ -1628,20 +2007,39 @@ process_debug_info (struct dwarf_section *section, void *file,
          debug_information [unit].num_range_lists = 0;
        }
 
-      tags = hdrptr;
-
       if (!do_loc)
        {
          printf (_("  Compilation Unit @ offset 0x%lx:\n"), cu_offset);
-         printf (_("   Length:        %ld\n"), compunit.cu_length);
+         printf (_("   Length:        0x%lx (%s)\n"), compunit.cu_length,
+                 initial_length_size == 8 ? "64-bit" : "32-bit");
          printf (_("   Version:       %d\n"), compunit.cu_version);
          printf (_("   Abbrev Offset: %ld\n"), compunit.cu_abbrev_offset);
          printf (_("   Pointer Size:  %d\n"), compunit.cu_pointer_size);
+         if (do_types)
+           {
+             int i;
+             printf (_("   Signature:     "));
+             for (i = 0; i < 8; i++)
+               printf ("%02x", signature[i]);
+             printf ("\n");
+             printf (_("   Type Offset:   0x%lx\n"), type_offset);
+           }
+       }
+
+      if (cu_offset + compunit.cu_length + initial_length_size
+         > section->size)
+       {
+         warn (_("Debug info is corrupted, length of CU at %lx extends beyond end of section (length = %lx)\n"),
+               cu_offset, compunit.cu_length);
+         break;
        }
+      tags = hdrptr;
+      start += compunit.cu_length + initial_length_size;
 
       if (compunit.cu_version != 2 && compunit.cu_version != 3)
        {
-         warn (_("Only version 2 and 3 DWARF debug information is currently supported.\n"));
+         warn (_("CU at offset %lx contains corrupt or unsupported version number: %d.\n"),
+               cu_offset, compunit.cu_version);
          continue;
        }
 
@@ -1649,30 +2047,68 @@ process_debug_info (struct dwarf_section *section, void *file,
 
       /* Process the abbrevs used by this compilation unit. DWARF
         sections under Mach-O have non-zero addresses.  */
-      process_abbrev_section
-       ((unsigned char *) debug_displays [abbrev].section.start
-        + compunit.cu_abbrev_offset - debug_displays [abbrev].section.address,
-        (unsigned char *) debug_displays [abbrev].section.start
-        + debug_displays [abbrev].section.size);
+      if (compunit.cu_abbrev_offset >= debug_displays [abbrev].section.size)
+       warn (_("Debug info is corrupted, abbrev offset (%lx) is larger than abbrev section size (%lx)\n"),
+             (unsigned long) compunit.cu_abbrev_offset,
+             (unsigned long) debug_displays [abbrev].section.size);
+      else
+       process_abbrev_section
+         ((unsigned char *) debug_displays [abbrev].section.start
+          + compunit.cu_abbrev_offset - debug_displays [abbrev].section.address,
+          (unsigned char *) debug_displays [abbrev].section.start
+          + debug_displays [abbrev].section.size);
 
       level = 0;
       while (tags < start)
        {
          unsigned int bytes_read;
          unsigned long abbrev_number;
+         unsigned long die_offset;
          abbrev_entry *entry;
          abbrev_attr *attr;
 
+         die_offset = tags - section_begin;
+
          abbrev_number = read_leb128 (tags, & bytes_read, 0);
          tags += bytes_read;
 
-         /* A null DIE marks the end of a list of children.  */
+         /* A null DIE marks the end of a list of siblings or it may also be
+            a section padding.  */
          if (abbrev_number == 0)
            {
+             /* Check if it can be a section padding for the last CU.  */
+             if (level == 0 && start == end)
+               {
+                 unsigned char *chk;
+
+                 for (chk = tags; chk < start; chk++)
+                   if (*chk != 0)
+                     break;
+                 if (chk == start)
+                   break;
+               }
+
              --level;
+             if (level < 0)
+               {
+                 static unsigned num_bogus_warns = 0;
+
+                 if (num_bogus_warns < 3)
+                   {
+                     warn (_("Bogus end-of-siblings marker detected at offset %lx in .debug_info section\n"),
+                           die_offset);
+                     num_bogus_warns ++;
+                     if (num_bogus_warns == 3)
+                       warn (_("Further warnings about bogus end-of-sibling markers suppressed\n"));
+                   }
+               }
              continue;
            }
 
+         if (!do_loc)
+           printf (_(" <%d><%lx>: Abbrev Number: %lu"),
+                   level, die_offset, abbrev_number);
+
          /* Scan through the abbreviation list until we reach the
             correct entry.  */
          for (entry = first_abbrev;
@@ -1682,19 +2118,19 @@ process_debug_info (struct dwarf_section *section, void *file,
 
          if (entry == NULL)
            {
-             warn (_("Unable to locate entry %lu in the abbreviation table\n"),
-                   abbrev_number);
+             if (!do_loc)
+               {
+                 printf ("\n");
+                 fflush (stdout);
+               }
+             warn (_("DIE at offset %lx refers to abbreviation number %lu which does not exist\n"),
+                   die_offset, abbrev_number);
              return 0;
            }
 
          if (!do_loc)
-           printf (_(" <%d><%lx>: Abbrev Number: %lu (%s)\n"),
-                   level,
-                   (unsigned long) (tags - section_begin
-                                    - bytes_read),
-                   abbrev_number,
-                   get_TAG_name (entry->tag));
+           printf (_(" (%s)\n"), get_TAG_name (entry->tag));
+
          switch (entry->tag)
            {
            default:
@@ -1704,7 +2140,6 @@ process_debug_info (struct dwarf_section *section, void *file,
              need_base_address = 1;
              break;
            case DW_TAG_entry_point:
-           case DW_TAG_inlined_subroutine:
            case DW_TAG_subprogram:
              need_base_address = 0;
              /* Assuming that there is no DW_AT_frame_base.  */
@@ -1713,31 +2148,38 @@ process_debug_info (struct dwarf_section *section, void *file,
            }
 
          for (attr = entry->first_attr; attr; attr = attr->next)
-           tags = read_and_display_attr (attr->attribute,
-                                         attr->form,
-                                         tags, cu_offset,
-                                         compunit.cu_pointer_size,
-                                         offset_size,
-                                         compunit.cu_version,
-                                         &debug_information [unit],
-                                         do_loc);
+           {
+             if (! do_loc)
+               /* Show the offset from where the tag was extracted.  */
+               printf ("    <%2lx>", (unsigned long)(tags - section_begin));
+
+             tags = read_and_display_attr (attr->attribute,
+                                           attr->form,
+                                           tags, cu_offset,
+                                           compunit.cu_pointer_size,
+                                           offset_size,
+                                           compunit.cu_version,
+                                           debug_information + unit,
+                                           do_loc, section);
+           }
+
          if (entry->children)
            ++level;
        }
     }
+
   /* Set num_debug_info_entries here so that it can be used to check if
      we need to process .debug_loc and .debug_ranges sections.  */
   if ((do_loc || do_debug_loc || do_debug_ranges)
-      && num_debug_info_entries == 0)
+      && num_debug_info_entries == 0
+      && ! do_types)
     num_debug_info_entries = num_units;
-      
+
   if (!do_loc)
     {
       printf ("\n");
     }
+
   return 1;
 }
 
@@ -1755,49 +2197,55 @@ load_debug_info (void * file)
   last_pointer_size = 0;
   warned_about_missing_comp_units = FALSE;
 
+  /* If we have already tried and failed to load the .debug_info
+     section then do not bother to repear the task.  */
+  if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE)
+    return 0;
+
   /* If we already have the information there is nothing else to do.  */
   if (num_debug_info_entries > 0)
     return num_debug_info_entries;
 
   if (load_debug_section (info, file)
-      && process_debug_info (&debug_displays [info].section, file, 1))
+      && process_debug_info (&debug_displays [info].section, file, 1, 0))
     return num_debug_info_entries;
-  else
-    return 0;
+
+  num_debug_info_entries = DEBUG_INFO_UNAVAILABLE;
+  return 0;
 }
 
 static int
-display_debug_lines (struct dwarf_section *section, void *file)
+display_debug_lines_raw (struct dwarf_section *section,
+                        unsigned char *data,
+                         unsigned char *end)
 {
   unsigned char *start = section->start;
-  unsigned char *data = start;
-  unsigned char *end = start + section->size;
 
-  printf (_("\nDump of debug contents of section %s:\n\n"),
-         section->name);
-
-  load_debug_info (file);
+  printf (_("Raw dump of debug contents of section %s:\n\n"),
+          section->name);
 
   while (data < end)
     {
-      DWARF2_Internal_LineInfo info;
+      DWARF2_Internal_LineInfo linfo;
       unsigned char *standard_opcodes;
       unsigned char *end_of_sequence;
       unsigned char *hdrptr;
+      unsigned long hdroff;
       int initial_length_size;
       int offset_size;
       int i;
 
       hdrptr = data;
+      hdroff = hdrptr - start;
 
       /* Check the length of the block.  */
-      info.li_length = byte_get (hdrptr, 4);
+      linfo.li_length = byte_get (hdrptr, 4);
       hdrptr += 4;
 
-      if (info.li_length == 0xffffffff)
+      if (linfo.li_length == 0xffffffff)
        {
          /* This section is 64-bit DWARF 3.  */
-         info.li_length = byte_get (hdrptr, 8);
+         linfo.li_length = byte_get (hdrptr, 8);
          hdrptr += 8;
          offset_size = 8;
          initial_length_size = 12;
@@ -1808,62 +2256,64 @@ display_debug_lines (struct dwarf_section *section, void *file)
          initial_length_size = 4;
        }
 
-      if (info.li_length + initial_length_size > section->size)
+      if (linfo.li_length + initial_length_size > section->size)
        {
          warn
-           (_("The line info appears to be corrupt - the section is too small\n"));
+           (_("The information in section %s appears to be corrupt - the section is too small\n"),
+            section->name);
          return 0;
        }
 
       /* Check its version number.  */
-      info.li_version = byte_get (hdrptr, 2);
+      linfo.li_version = byte_get (hdrptr, 2);
       hdrptr += 2;
-      if (info.li_version != 2 && info.li_version != 3)
+      if (linfo.li_version != 2 && linfo.li_version != 3)
        {
          warn (_("Only DWARF version 2 and 3 line info is currently supported.\n"));
          return 0;
        }
 
-      info.li_prologue_length = byte_get (hdrptr, offset_size);
+      linfo.li_prologue_length = byte_get (hdrptr, offset_size);
       hdrptr += offset_size;
-      info.li_min_insn_length = byte_get (hdrptr, 1);
+      linfo.li_min_insn_length = byte_get (hdrptr, 1);
       hdrptr++;
-      info.li_default_is_stmt = byte_get (hdrptr, 1);
+      linfo.li_default_is_stmt = byte_get (hdrptr, 1);
       hdrptr++;
-      info.li_line_base = byte_get (hdrptr, 1);
+      linfo.li_line_base = byte_get (hdrptr, 1);
       hdrptr++;
-      info.li_line_range = byte_get (hdrptr, 1);
+      linfo.li_line_range = byte_get (hdrptr, 1);
       hdrptr++;
-      info.li_opcode_base = byte_get (hdrptr, 1);
+      linfo.li_opcode_base = byte_get (hdrptr, 1);
       hdrptr++;
 
       /* Sign extend the line base field.  */
-      info.li_line_base <<= 24;
-      info.li_line_base >>= 24;
+      linfo.li_line_base <<= 24;
+      linfo.li_line_base >>= 24;
 
-      printf (_("  Length:                      %ld\n"), info.li_length);
-      printf (_("  DWARF Version:               %d\n"), info.li_version);
-      printf (_("  Prologue Length:             %d\n"), info.li_prologue_length);
-      printf (_("  Minimum Instruction Length:  %d\n"), info.li_min_insn_length);
-      printf (_("  Initial value of 'is_stmt':  %d\n"), info.li_default_is_stmt);
-      printf (_("  Line Base:                   %d\n"), info.li_line_base);
-      printf (_("  Line Range:                  %d\n"), info.li_line_range);
-      printf (_("  Opcode Base:                 %d\n"), info.li_opcode_base);
+      printf (_("  Offset:                      0x%lx\n"), hdroff);
+      printf (_("  Length:                      %ld\n"), linfo.li_length);
+      printf (_("  DWARF Version:               %d\n"), linfo.li_version);
+      printf (_("  Prologue Length:             %d\n"), linfo.li_prologue_length);
+      printf (_("  Minimum Instruction Length:  %d\n"), linfo.li_min_insn_length);
+      printf (_("  Initial value of 'is_stmt':  %d\n"), linfo.li_default_is_stmt);
+      printf (_("  Line Base:                   %d\n"), linfo.li_line_base);
+      printf (_("  Line Range:                  %d\n"), linfo.li_line_range);
+      printf (_("  Opcode Base:                 %d\n"), linfo.li_opcode_base);
 
-      end_of_sequence = data + info.li_length + initial_length_size;
+      end_of_sequence = data + linfo.li_length + initial_length_size;
 
-      reset_state_machine (info.li_default_is_stmt);
+      reset_state_machine (linfo.li_default_is_stmt);
 
       /* Display the contents of the Opcodes table.  */
       standard_opcodes = hdrptr;
 
       printf (_("\n Opcodes:\n"));
 
-      for (i = 1; i < info.li_opcode_base; i++)
+      for (i = 1; i < linfo.li_opcode_base; i++)
        printf (_("  Opcode %d has %d args\n"), i, standard_opcodes[i - 1]);
 
       /* Display the contents of the Directory table.  */
-      data = standard_opcodes + info.li_opcode_base - 1;
+      data = standard_opcodes + linfo.li_opcode_base - 1;
 
       if (*data == 0)
        printf (_("\n The Directory Table is empty.\n"));
@@ -1925,14 +2375,14 @@ display_debug_lines (struct dwarf_section *section, void *file)
 
          op_code = *data++;
 
-         if (op_code >= info.li_opcode_base)
+         if (op_code >= linfo.li_opcode_base)
            {
-             op_code -= info.li_opcode_base;
-             uladv = (op_code / info.li_line_range) * info.li_min_insn_length;
+             op_code -= linfo.li_opcode_base;
+             uladv = (op_code / linfo.li_line_range) * linfo.li_min_insn_length;
              state_machine_regs.address += uladv;
              printf (_("  Special opcode %d: advance Address by %lu to 0x%lx"),
                      op_code, uladv, state_machine_regs.address);
-             adv = (op_code % info.li_line_range) + info.li_line_base;
+             adv = (op_code % linfo.li_line_range) + linfo.li_line_base;
              state_machine_regs.line += adv;
              printf (_(" and Line by %d to %d\n"),
                      adv, state_machine_regs.line);
@@ -1940,7 +2390,7 @@ display_debug_lines (struct dwarf_section *section, void *file)
          else switch (op_code)
            {
            case DW_LNS_extended_op:
-             data += process_extended_line_op (data, info.li_default_is_stmt);
+             data += process_extended_line_op (data, linfo.li_default_is_stmt);
              break;
 
            case DW_LNS_copy:
@@ -1949,7 +2399,7 @@ display_debug_lines (struct dwarf_section *section, void *file)
 
            case DW_LNS_advance_pc:
              uladv = read_leb128 (data, & bytes_read, 0);
-             uladv *= info.li_min_insn_length;
+             uladv *= linfo.li_min_insn_length;
              data += bytes_read;
              state_machine_regs.address += uladv;
              printf (_("  Advance PC by %lu to 0x%lx\n"), uladv,
@@ -1992,8 +2442,8 @@ display_debug_lines (struct dwarf_section *section, void *file)
              break;
 
            case DW_LNS_const_add_pc:
-             uladv = (((255 - info.li_opcode_base) / info.li_line_range)
-                     * info.li_min_insn_length);
+             uladv = (((255 - linfo.li_opcode_base) / linfo.li_line_range)
+                     * linfo.li_min_insn_length);
              state_machine_regs.address += uladv;
              printf (_("  Advance PC by constant %lu to 0x%lx\n"), uladv,
                      state_machine_regs.address);
@@ -2040,96 +2490,560 @@ display_debug_lines (struct dwarf_section *section, void *file)
   return 1;
 }
 
-static int
-display_debug_pubnames (struct dwarf_section *section,
-                       void *file ATTRIBUTE_UNUSED)
+typedef struct
 {
-  DWARF2_Internal_PubNames pubnames;
-  unsigned char *start = section->start;
-  unsigned char *end = start + section->size;
+    unsigned char *name;
+    unsigned int directory_index;
+    unsigned int modification_date;
+    unsigned int length;
+} File_Entry;
 
-  printf (_("Contents of the %s section:\n\n"), section->name);
+/* Output a decoded representation of the .debug_line section.  */
 
-  while (start < end)
-    {
-      unsigned char *data;
-      unsigned long offset;
-      int offset_size, initial_length_size;
+static int
+display_debug_lines_decoded (struct dwarf_section *section,
+                            unsigned char *data,
+                            unsigned char *end)
+{
+  printf (_("Decoded dump of debug contents of section %s:\n\n"),
+          section->name);
 
-      data = start;
+  while (data < end)
+    {
+      /* This loop amounts to one iteration per compilation unit.  */
+      DWARF2_Internal_LineInfo linfo;
+      unsigned char *standard_opcodes;
+      unsigned char *end_of_sequence;
+      unsigned char *hdrptr;
+      int initial_length_size;
+      int offset_size;
+      int i;
+      File_Entry *file_table = NULL;
+      unsigned char **directory_table = NULL;
+      unsigned int prev_line = 0;
 
-      pubnames.pn_length = byte_get (data, 4);
-      data += 4;
-      if (pubnames.pn_length == 0xffffffff)
-       {
-         pubnames.pn_length = byte_get (data, 8);
-         data += 8;
-         offset_size = 8;
-         initial_length_size = 12;
-       }
-      else
-       {
-         offset_size = 4;
-         initial_length_size = 4;
-       }
+      hdrptr = data;
 
-      pubnames.pn_version = byte_get (data, 2);
-      data += 2;
-      pubnames.pn_offset = byte_get (data, offset_size);
-      data += offset_size;
-      pubnames.pn_size = byte_get (data, offset_size);
-      data += offset_size;
+      /* Extract information from the Line Number Program Header.
+        (section 6.2.4 in the Dwarf3 doc).  */
 
-      start += pubnames.pn_length + initial_length_size;
+      /* Get the length of this CU's line number information block.  */
+      linfo.li_length = byte_get (hdrptr, 4);
+      hdrptr += 4;
 
-      if (pubnames.pn_version != 2 && pubnames.pn_version != 3)
-       {
-         static int warned = 0;
+      if (linfo.li_length == 0xffffffff)
+        {
+          /* This section is 64-bit DWARF 3.  */
+          linfo.li_length = byte_get (hdrptr, 8);
+          hdrptr += 8;
+          offset_size = 8;
+          initial_length_size = 12;
+        }
+      else
+        {
+          offset_size = 4;
+          initial_length_size = 4;
+        }
+
+      if (linfo.li_length + initial_length_size > section->size)
+        {
+          warn (_("The line info appears to be corrupt - "
+                  "the section is too small\n"));
+          return 0;
+        }
+
+      /* Get this CU's Line Number Block version number.  */
+      linfo.li_version = byte_get (hdrptr, 2);
+      hdrptr += 2;
+      if (linfo.li_version != 2 && linfo.li_version != 3)
+        {
+          warn (_("Only DWARF version 2 and 3 line info is currently "
+                "supported.\n"));
+          return 0;
+        }
+
+      linfo.li_prologue_length = byte_get (hdrptr, offset_size);
+      hdrptr += offset_size;
+      linfo.li_min_insn_length = byte_get (hdrptr, 1);
+      hdrptr++;
+      linfo.li_default_is_stmt = byte_get (hdrptr, 1);
+      hdrptr++;
+      linfo.li_line_base = byte_get (hdrptr, 1);
+      hdrptr++;
+      linfo.li_line_range = byte_get (hdrptr, 1);
+      hdrptr++;
+      linfo.li_opcode_base = byte_get (hdrptr, 1);
+      hdrptr++;
 
-         if (! warned)
-           {
-             warn (_("Only DWARF 2 and 3 pubnames are currently supported\n"));
-             warned = 1;
-           }
+      /* Sign extend the line base field.  */
+      linfo.li_line_base <<= 24;
+      linfo.li_line_base >>= 24;
 
-         continue;
-       }
+      /* Find the end of this CU's Line Number Information Block.  */
+      end_of_sequence = data + linfo.li_length + initial_length_size;
 
-      printf (_("  Length:                              %ld\n"),
-             pubnames.pn_length);
-      printf (_("  Version:                             %d\n"),
-             pubnames.pn_version);
-      printf (_("  Offset into .debug_info section:     %ld\n"),
-             pubnames.pn_offset);
-      printf (_("  Size of area in .debug_info section: %ld\n"),
-             pubnames.pn_size);
+      reset_state_machine (linfo.li_default_is_stmt);
 
-      printf (_("\n    Offset\tName\n"));
+      /* Save a pointer to the contents of the Opcodes table.  */
+      standard_opcodes = hdrptr;
 
-      do
-       {
-         offset = byte_get (data, offset_size);
+      /* Traverse the Directory table just to count entries.  */
+      data = standard_opcodes + linfo.li_opcode_base - 1;
+      if (*data != 0)
+        {
+          unsigned int n_directories = 0;
+          unsigned char *ptr_directory_table = data;
 
-         if (offset != 0)
+         while (*data != 0)
            {
-             data += offset_size;
-             printf ("    %-6ld\t\t%s\n", offset, data);
              data += strlen ((char *) data) + 1;
+             n_directories++;
            }
-       }
-      while (offset != 0);
-    }
 
-  printf ("\n");
-  return 1;
-}
+          /* Go through the directory table again to save the directories.  */
+          directory_table = (unsigned char **)
+              xmalloc (n_directories * sizeof (unsigned char *));
+
+          i = 0;
+          while (*ptr_directory_table != 0)
+            {
+              directory_table[i] = ptr_directory_table;
+              ptr_directory_table += strlen ((char *) ptr_directory_table) + 1;
+              i++;
+            }
+        }
+      /* Skip the NUL at the end of the table.  */
+      data++;
 
-static int
-display_debug_macinfo (struct dwarf_section *section,
-                      void *file ATTRIBUTE_UNUSED)
-{
-  unsigned char *start = section->start;
-  unsigned char *end = start + section->size;
+      /* Traverse the File Name table just to count the entries.  */
+      if (*data != 0)
+        {
+          unsigned int n_files = 0;
+          unsigned char *ptr_file_name_table = data;
+
+          while (*data != 0)
+            {
+             unsigned int bytes_read;
+
+              /* Skip Name, directory index, last modification time and length
+                 of file.  */
+              data += strlen ((char *) data) + 1;
+              read_leb128 (data, & bytes_read, 0);
+              data += bytes_read;
+              read_leb128 (data, & bytes_read, 0);
+              data += bytes_read;
+              read_leb128 (data, & bytes_read, 0);
+              data += bytes_read;
+
+              n_files++;
+            }
+
+          /* Go through the file table again to save the strings.  */
+          file_table = (File_Entry *) xmalloc (n_files * sizeof (File_Entry));
+
+          i = 0;
+          while (*ptr_file_name_table != 0)
+            {
+              unsigned int bytes_read;
+
+              file_table[i].name = ptr_file_name_table;
+              ptr_file_name_table += strlen ((char *) ptr_file_name_table) + 1;
+
+              /* We are not interested in directory, time or size.  */
+              file_table[i].directory_index = read_leb128 (ptr_file_name_table,
+                                                           & bytes_read, 0);
+              ptr_file_name_table += bytes_read;
+              file_table[i].modification_date = read_leb128 (ptr_file_name_table,
+                                                            & bytes_read, 0);
+              ptr_file_name_table += bytes_read;
+              file_table[i].length = read_leb128 (ptr_file_name_table, & bytes_read, 0);
+              ptr_file_name_table += bytes_read;
+              i++;
+            }
+          i = 0;
+
+          /* Print the Compilation Unit's name and a header.  */
+          if (directory_table == NULL)
+            {
+              printf (_("CU: %s:\n"), file_table[0].name);
+              printf (_("File name                            Line number    Starting address\n"));
+            }
+          else
+            {
+              if (do_wide || strlen ((char *) directory_table[0]) < 76)
+                {
+                  printf (_("CU: %s/%s:\n"), directory_table[0],
+                          file_table[0].name);
+                }
+              else
+                {
+                  printf (_("%s:\n"), file_table[0].name);
+                }
+              printf (_("File name                            Line number    Starting address\n"));
+            }
+        }
+
+      /* Skip the NUL at the end of the table.  */
+      data++;
+
+      /* This loop iterates through the Dwarf Line Number Program.  */
+      while (data < end_of_sequence)
+        {
+         unsigned char op_code;
+          int adv;
+          unsigned long int uladv;
+          unsigned int bytes_read;
+          int is_special_opcode = 0;
+
+          op_code = *data++;
+          prev_line = state_machine_regs.line;
+
+          if (op_code >= linfo.li_opcode_base)
+           {
+             op_code -= linfo.li_opcode_base;
+              uladv = (op_code / linfo.li_line_range) * linfo.li_min_insn_length;
+              state_machine_regs.address += uladv;
+
+              adv = (op_code % linfo.li_line_range) + linfo.li_line_base;
+              state_machine_regs.line += adv;
+              is_special_opcode = 1;
+            }
+          else switch (op_code)
+            {
+            case DW_LNS_extended_op:
+              {
+                unsigned int ext_op_code_len;
+                unsigned char ext_op_code;
+                unsigned char *op_code_data = data;
+
+                ext_op_code_len = read_leb128 (op_code_data, &bytes_read, 0);
+                op_code_data += bytes_read;
+
+                if (ext_op_code_len == 0)
+                  {
+                    warn (_("badly formed extended line op encountered!\n"));
+                    break;
+                  }
+                ext_op_code_len += bytes_read;
+                ext_op_code = *op_code_data++;
+
+                switch (ext_op_code)
+                  {
+                  case DW_LNE_end_sequence:
+                    reset_state_machine (linfo.li_default_is_stmt);
+                    break;
+                  case DW_LNE_set_address:
+                    state_machine_regs.address =
+                    byte_get (op_code_data, ext_op_code_len - bytes_read - 1);
+                    break;
+                  case DW_LNE_define_file:
+                    {
+                      unsigned int dir_index = 0;
+
+                      ++state_machine_regs.last_file_entry;
+                      op_code_data += strlen ((char *) op_code_data) + 1;
+                      dir_index = read_leb128 (op_code_data, & bytes_read, 0);
+                      op_code_data += bytes_read;
+                      read_leb128 (op_code_data, & bytes_read, 0);
+                      op_code_data += bytes_read;
+                      read_leb128 (op_code_data, & bytes_read, 0);
+
+                      printf (_("%s:\n"), directory_table[dir_index]);
+                      break;
+                    }
+                  default:
+                    printf (_("UNKNOWN: length %d\n"), ext_op_code_len - bytes_read);
+                    break;
+                  }
+                data += ext_op_code_len;
+                break;
+              }
+            case DW_LNS_copy:
+              break;
+
+            case DW_LNS_advance_pc:
+              uladv = read_leb128 (data, & bytes_read, 0);
+              uladv *= linfo.li_min_insn_length;
+              data += bytes_read;
+              state_machine_regs.address += uladv;
+              break;
+
+            case DW_LNS_advance_line:
+              adv = read_leb128 (data, & bytes_read, 1);
+              data += bytes_read;
+              state_machine_regs.line += adv;
+              break;
+
+            case DW_LNS_set_file:
+              adv = read_leb128 (data, & bytes_read, 0);
+              data += bytes_read;
+              state_machine_regs.file = adv;
+              if (file_table[state_machine_regs.file - 1].directory_index == 0)
+                {
+                  /* If directory index is 0, that means current directory.  */
+                  printf (_("\n./%s:[++]\n"),
+                          file_table[state_machine_regs.file - 1].name);
+                }
+              else
+                {
+                  /* The directory index starts counting at 1.  */
+                  printf (_("\n%s/%s:\n"),
+                          directory_table[file_table[state_machine_regs.file - 1].directory_index - 1],
+                          file_table[state_machine_regs.file - 1].name);
+                }
+              break;
+
+            case DW_LNS_set_column:
+              uladv = read_leb128 (data, & bytes_read, 0);
+              data += bytes_read;
+              state_machine_regs.column = uladv;
+              break;
+
+            case DW_LNS_negate_stmt:
+              adv = state_machine_regs.is_stmt;
+              adv = ! adv;
+              state_machine_regs.is_stmt = adv;
+              break;
+
+            case DW_LNS_set_basic_block:
+              state_machine_regs.basic_block = 1;
+              break;
+
+            case DW_LNS_const_add_pc:
+              uladv = (((255 - linfo.li_opcode_base) / linfo.li_line_range)
+                       * linfo.li_min_insn_length);
+              state_machine_regs.address += uladv;
+              break;
+
+            case DW_LNS_fixed_advance_pc:
+              uladv = byte_get (data, 2);
+              data += 2;
+              state_machine_regs.address += uladv;
+              break;
+
+            case DW_LNS_set_prologue_end:
+              break;
+
+            case DW_LNS_set_epilogue_begin:
+              break;
+
+            case DW_LNS_set_isa:
+              uladv = read_leb128 (data, & bytes_read, 0);
+              data += bytes_read;
+              printf (_("  Set ISA to %lu\n"), uladv);
+              break;
+
+            default:
+              printf (_("  Unknown opcode %d with operands: "), op_code);
+
+              for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
+                {
+                  printf ("0x%lx%s", read_leb128 (data, &bytes_read, 0),
+                          i == 1 ? "" : ", ");
+                  data += bytes_read;
+                }
+              putchar ('\n');
+              break;
+            }
+
+          /* Only Special opcodes, DW_LNS_copy and DW_LNE_end_sequence adds a row
+             to the DWARF address/line matrix.  */
+          if ((is_special_opcode) || (op_code == DW_LNE_end_sequence)
+             || (op_code == DW_LNS_copy))
+            {
+              const unsigned int MAX_FILENAME_LENGTH = 35;
+              char *fileName = (char *)file_table[state_machine_regs.file - 1].name;
+              char *newFileName = NULL;
+              size_t fileNameLength = strlen (fileName);
+
+              if ((fileNameLength > MAX_FILENAME_LENGTH) && (!do_wide))
+                {
+                  newFileName = (char *) xmalloc (MAX_FILENAME_LENGTH + 1);
+                  /* Truncate file name */
+                  strncpy (newFileName,
+                           fileName + fileNameLength - MAX_FILENAME_LENGTH,
+                           MAX_FILENAME_LENGTH + 1);
+                }
+              else
+                {
+                  newFileName = (char *) xmalloc (fileNameLength + 1);
+                  strncpy (newFileName, fileName, fileNameLength + 1);
+                }
+
+              if (!do_wide || (fileNameLength <= MAX_FILENAME_LENGTH))
+                {
+                  printf (_("%-35s  %11d  %#18lx\n"), newFileName,
+                          state_machine_regs.line, state_machine_regs.address);
+                }
+              else
+                {
+                  printf (_("%s  %11d  %#18lx\n"), newFileName,
+                          state_machine_regs.line, state_machine_regs.address);
+                }
+
+              if (op_code == DW_LNE_end_sequence)
+               printf ("\n");
+
+              free (newFileName);
+            }
+        }
+      free (file_table);
+      file_table = NULL;
+      free (directory_table);
+      directory_table = NULL;
+      putchar ('\n');
+    }
+
+  return 1;
+}
+
+static int
+display_debug_lines (struct dwarf_section *section, void *file)
+{
+  unsigned char *data = section->start;
+  unsigned char *end = data + section->size;
+  int retValRaw = 1;
+  int retValDecoded = 1;
+
+  if (load_debug_info (file) == 0)
+    {
+      warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
+            section->name);
+      return 0;
+    }
+
+  if (do_debug_lines == 0)
+    do_debug_lines |= FLAG_DEBUG_LINES_RAW;
+
+  if (do_debug_lines & FLAG_DEBUG_LINES_RAW)
+    retValRaw = display_debug_lines_raw (section, data, end);
+
+  if (do_debug_lines & FLAG_DEBUG_LINES_DECODED)
+    retValDecoded = display_debug_lines_decoded (section, data, end);
+
+  if (!retValRaw || !retValDecoded)
+    return 0;
+
+  return 1;
+}
+
+static debug_info *
+find_debug_info_for_offset (unsigned long offset)
+{
+  unsigned int i;
+
+  if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE)
+    return NULL;
+
+  for (i = 0; i < num_debug_info_entries; i++)
+    if (debug_information[i].cu_offset == offset)
+      return debug_information + i;
+
+  return NULL;
+}
+
+static int
+display_debug_pubnames (struct dwarf_section *section,
+                       void *file ATTRIBUTE_UNUSED)
+{
+  DWARF2_Internal_PubNames names;
+  unsigned char *start = section->start;
+  unsigned char *end = start + section->size;
+
+  /* It does not matter if this load fails,
+     we test for that later on.  */
+  load_debug_info (file);
+
+  printf (_("Contents of the %s section:\n\n"), section->name);
+
+  while (start < end)
+    {
+      unsigned char *data;
+      unsigned long offset;
+      int offset_size, initial_length_size;
+
+      data = start;
+
+      names.pn_length = byte_get (data, 4);
+      data += 4;
+      if (names.pn_length == 0xffffffff)
+       {
+         names.pn_length = byte_get (data, 8);
+         data += 8;
+         offset_size = 8;
+         initial_length_size = 12;
+       }
+      else
+       {
+         offset_size = 4;
+         initial_length_size = 4;
+       }
+
+      names.pn_version = byte_get (data, 2);
+      data += 2;
+
+      names.pn_offset = byte_get (data, offset_size);
+      data += offset_size;
+
+      if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE
+         && num_debug_info_entries > 0
+         && find_debug_info_for_offset (names.pn_offset) == NULL)
+       warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
+             names.pn_offset, section->name);
+
+      names.pn_size = byte_get (data, offset_size);
+      data += offset_size;
+
+      start += names.pn_length + initial_length_size;
+
+      if (names.pn_version != 2 && names.pn_version != 3)
+       {
+         static int warned = 0;
+
+         if (! warned)
+           {
+             warn (_("Only DWARF 2 and 3 pubnames are currently supported\n"));
+             warned = 1;
+           }
+
+         continue;
+       }
+
+      printf (_("  Length:                              %ld\n"),
+             names.pn_length);
+      printf (_("  Version:                             %d\n"),
+             names.pn_version);
+      printf (_("  Offset into .debug_info section:     0x%lx\n"),
+             names.pn_offset);
+      printf (_("  Size of area in .debug_info section: %ld\n"),
+             names.pn_size);
+
+      printf (_("\n    Offset\tName\n"));
+
+      do
+       {
+         offset = byte_get (data, offset_size);
+
+         if (offset != 0)
+           {
+             data += offset_size;
+             printf ("    %-6lx\t%s\n", offset, data);
+             data += strlen ((char *) data) + 1;
+           }
+       }
+      while (offset != 0);
+    }
+
+  printf ("\n");
+  return 1;
+}
+
+static int
+display_debug_macinfo (struct dwarf_section *section,
+                      void *file ATTRIBUTE_UNUSED)
+{
+  unsigned char *start = section->start;
+  unsigned char *end = start + section->size;
   unsigned char *curr = start;
   unsigned int bytes_read;
   enum dwarf_macinfo_record_type op;
@@ -2141,7 +3055,7 @@ display_debug_macinfo (struct dwarf_section *section,
       unsigned int lineno;
       const char *string;
 
-      op = *curr;
+      op = (enum dwarf_macinfo_record_type) *curr;
       curr++;
 
       switch (op)
@@ -2268,7 +3182,12 @@ display_debug_loc (struct dwarf_section *section, void *file)
       return 0;
     }
 
-  load_debug_info (file);
+  if (load_debug_info (file) == 0)
+    {
+      warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
+           section->name);
+      return 0;
+    }
 
   /* Check the order of location list in .debug_info section. If
      offsets of location lists are in the ascending order, we can
@@ -2315,7 +3234,8 @@ display_debug_loc (struct dwarf_section *section, void *file)
     error (_("No location lists in .debug_info section!\n"));
 
   /* DWARF sections under Mach-O have non-zero addresses.  */
-  if (debug_information [first].loc_offsets [0] != section->address)
+  if (debug_information [first].num_loc_offsets > 0
+      && debug_information [first].loc_offsets [0] != section->address)
     warn (_("Location lists in %s section start at 0x%lx\n"),
          section->name, debug_information [first].loc_offsets [0]);
 
@@ -2325,8 +3245,8 @@ display_debug_loc (struct dwarf_section *section, void *file)
   seen_first_offset = 0;
   for (i = first; i < num_debug_info_entries; i++)
     {
-      unsigned long begin;
-      unsigned long end;
+      dwarf_vma begin;
+      dwarf_vma end;
       unsigned short length;
       unsigned long offset;
       unsigned int pointer_size;
@@ -2342,7 +3262,7 @@ display_debug_loc (struct dwarf_section *section, void *file)
        {
          has_frame_base = debug_information [i].have_frame_base [j];
          /* DWARF sections under Mach-O have non-zero addresses.  */
-         offset = debug_information [i].loc_offsets [j] - section->address; 
+         offset = debug_information [i].loc_offsets [j] - section->address;
          next = section_begin + offset;
          base_address = debug_information [i].base_address;
 
@@ -2352,10 +3272,12 @@ display_debug_loc (struct dwarf_section *section, void *file)
            {
              if (start < next)
                warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"),
-                     (long)(start - section_begin), (long)(next - section_begin));
+                     (unsigned long) (start - section_begin),
+                     (unsigned long) (next - section_begin));
              else if (start > next)
                warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"),
-                     (long)(start - section_begin), (long)(next - section_begin));
+                     (unsigned long) (start - section_begin),
+                     (unsigned long) (next - section_begin));
            }
          start = next;
 
@@ -2375,23 +3297,31 @@ display_debug_loc (struct dwarf_section *section, void *file)
                  break;
                }
 
-             begin = byte_get (start, pointer_size);
+             /* Note: we use sign extension here in order to be sure that
+                we can detect the -1 escape value.  Sign extension into the
+                top 32 bits of a 32-bit address will not affect the values
+                that we display since we always show hex values, and always
+                the bottom 32-bits.  */
+             begin = byte_get_signed (start, pointer_size);
              start += pointer_size;
-             end = byte_get (start, pointer_size);
+             end = byte_get_signed (start, pointer_size);
              start += pointer_size;
 
+             printf ("    %8.8lx ", offset);
+
              if (begin == 0 && end == 0)
                {
-                 printf (_("    %8.8lx <End of list>\n"), offset);
+                 printf (_("<End of list>\n"));
                  break;
                }
 
              /* Check base address specifiers.  */
-             if (begin == -1UL && end != -1UL)
+             if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1)
                {
                  base_address = end;
-                 printf (_("    %8.8lx %8.8lx %8.8lx (base address)\n"),
-                         offset, begin, end);
+                 print_dwarf_vma (begin, pointer_size);
+                 print_dwarf_vma (end, pointer_size);
+                 printf (_("(base address)\n"));
                  continue;
                }
 
@@ -2412,12 +3342,14 @@ display_debug_loc (struct dwarf_section *section, void *file)
                  break;
                }
 
-             printf ("    %8.8lx %8.8lx %8.8lx (",
-                     offset, begin + base_address, end + base_address);
+             print_dwarf_vma (begin + base_address, pointer_size);
+             print_dwarf_vma (end + base_address, pointer_size);
+
+             putchar ('(');
              need_frame_base = decode_location_expression (start,
                                                            pointer_size,
                                                            length,
-                                                           cu_offset);
+                                                           cu_offset, section);
              putchar (')');
 
              if (need_frame_base && !has_frame_base)
@@ -2434,6 +3366,11 @@ display_debug_loc (struct dwarf_section *section, void *file)
            }
        }
     }
+
+  if (start < section_end)
+    warn (_("There are %ld unused bytes at the end of section %s\n"),
+         (long) (section_end - start), section->name);
+  putchar ('\n');
   return 1;
 }
 
@@ -2495,13 +3432,17 @@ display_debug_str (struct dwarf_section *section,
   return 1;
 }
 
-
 static int
 display_debug_info (struct dwarf_section *section, void *file)
 {
-  return process_debug_info (section, file, 0);
+  return process_debug_info (section, file, 0, 0);
 }
 
+static int
+display_debug_types (struct dwarf_section *section, void *file)
+{
+  return process_debug_info (section, file, 0, 1);
+}
 
 static int
 display_debug_aranges (struct dwarf_section *section,
@@ -2510,15 +3451,20 @@ display_debug_aranges (struct dwarf_section *section,
   unsigned char *start = section->start;
   unsigned char *end = start + section->size;
 
-  printf (_("The section %s contains:\n\n"), section->name);
+  printf (_("Contents of the %s section:\n\n"), section->name);
+
+  /* It does not matter if this load fails,
+     we test for that later on.  */
+  load_debug_info (file);
 
   while (start < end)
     {
       unsigned char *hdrptr;
       DWARF2_Internal_ARange arange;
-      unsigned char *ranges;
-      unsigned long length;
-      unsigned long address;
+      unsigned char *addr_ranges;
+      dwarf_vma length;
+      dwarf_vma address;
+      unsigned char address_size;
       int excess;
       int offset_size;
       int initial_length_size;
@@ -2547,6 +3493,12 @@ display_debug_aranges (struct dwarf_section *section,
       arange.ar_info_offset = byte_get (hdrptr, offset_size);
       hdrptr += offset_size;
 
+      if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE
+         && num_debug_info_entries > 0
+         && find_debug_info_for_offset (arange.ar_info_offset) == NULL)
+       warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
+             arange.ar_info_offset, section->name);
+
       arange.ar_pointer_size = byte_get (hdrptr, 1);
       hdrptr += 1;
 
@@ -2561,32 +3513,49 @@ display_debug_aranges (struct dwarf_section *section,
 
       printf (_("  Length:                   %ld\n"), arange.ar_length);
       printf (_("  Version:                  %d\n"), arange.ar_version);
-      printf (_("  Offset into .debug_info:  %lx\n"), arange.ar_info_offset);
+      printf (_("  Offset into .debug_info:  0x%lx\n"), arange.ar_info_offset);
       printf (_("  Pointer Size:             %d\n"), arange.ar_pointer_size);
       printf (_("  Segment Size:             %d\n"), arange.ar_segment_size);
 
-      printf (_("\n    Address  Length\n"));
+      address_size = arange.ar_pointer_size + arange.ar_segment_size;
+
+      /* The DWARF spec does not require that the address size be a power
+        of two, but we do.  This will have to change if we ever encounter
+        an uneven architecture.  */
+      if ((address_size & (address_size - 1)) != 0)
+       {
+         warn (_("Pointer size + Segment size is not a power of two.\n"));
+         break;
+       }
+
+      if (address_size > 4)
+       printf (_("\n    Address            Length\n"));
+      else
+       printf (_("\n    Address    Length\n"));
 
-      ranges = hdrptr;
+      addr_ranges = hdrptr;
 
-      /* Must pad to an alignment boundary that is twice the pointer size.  */
-      excess = (hdrptr - start) % (2 * arange.ar_pointer_size);
+      /* Must pad to an alignment boundary that is twice the address size.  */
+      excess = (hdrptr - start) % (2 * address_size);
       if (excess)
-       ranges += (2 * arange.ar_pointer_size) - excess;
+       addr_ranges += (2 * address_size) - excess;
 
       start += arange.ar_length + initial_length_size;
 
-      while (ranges + 2 * arange.ar_pointer_size <= start)
+      while (addr_ranges + 2 * address_size <= start)
        {
-         address = byte_get (ranges, arange.ar_pointer_size);
+         address = byte_get (addr_ranges, address_size);
 
-         ranges += arange.ar_pointer_size;
+         addr_ranges += address_size;
 
-         length  = byte_get (ranges, arange.ar_pointer_size);
+         length  = byte_get (addr_ranges, address_size);
 
-         ranges += arange.ar_pointer_size;
+         addr_ranges += address_size;
 
-         printf ("    %8.8lx %lu\n", address, length);
+         printf ("    ");
+         print_dwarf_vma (address, address_size);
+         print_dwarf_vma (length, address_size);
+         putchar ('\n');
        }
     }
 
@@ -2595,6 +3564,31 @@ display_debug_aranges (struct dwarf_section *section,
   return 1;
 }
 
+/* Each debug_information[x].range_lists[y] gets this representation for
+   sorting purposes.  */
+
+struct range_entry
+  {
+    /* The debug_information[x].range_lists[y] value.  */
+    unsigned long ranges_offset;
+
+    /* Original debug_information to find parameters of the data.  */
+    debug_info *debug_info_p;
+  };
+
+/* Sort struct range_entry in ascending order of its RANGES_OFFSET.  */
+
+static int
+range_entry_compar (const void *ap, const void *bp)
+{
+  const struct range_entry *a_re = (const struct range_entry *) ap;
+  const struct range_entry *b_re = (const struct range_entry *) bp;
+  const unsigned long a = a_re->ranges_offset;
+  const unsigned long b = b_re->ranges_offset;
+
+  return (a > b) - (b > a);
+}
+
 static int
 display_debug_ranges (struct dwarf_section *section,
                      void *file ATTRIBUTE_UNUSED)
@@ -2603,14 +3597,8 @@ display_debug_ranges (struct dwarf_section *section,
   unsigned char *section_end;
   unsigned long bytes;
   unsigned char *section_begin = start;
-  unsigned int num_range_list = 0;
-  unsigned long last_offset = 0;
-  unsigned int first = 0;
-  unsigned int i;
-  unsigned int j;
-  int seen_first_offset = 0;
-  int use_debug_info = 1;
-  unsigned char *next;
+  unsigned int num_range_list, i;
+  struct range_entry *range_entries, *range_entry_fill;
 
   bytes = section->size;
   section_end = start + bytes;
@@ -2621,128 +3609,125 @@ display_debug_ranges (struct dwarf_section *section,
       return 0;
     }
 
-  load_debug_info (file);
+  if (load_debug_info (file) == 0)
+    {
+      warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
+           section->name);
+      return 0;
+    }
 
-  /* Check the order of range list in .debug_info section. If
-     offsets of range lists are in the ascending order, we can
-     use `debug_information' directly.  */
+  num_range_list = 0;
   for (i = 0; i < num_debug_info_entries; i++)
-    {
-      unsigned int num;
+    num_range_list += debug_information [i].num_range_lists;
 
-      num = debug_information [i].num_range_lists;
-      num_range_list += num;
+  if (num_range_list == 0)
+    error (_("No range lists in .debug_info section!\n"));
 
-      /* Check if we can use `debug_information' directly.  */
-      if (use_debug_info && num != 0)
-       {
-         if (!seen_first_offset)
-           {
-             /* This is the first range list.  */
-             last_offset = debug_information [i].range_lists [0];
-             first = i;
-             seen_first_offset = 1;
-             j = 1;
-           }
-         else
-           j = 0;
+  range_entries = (struct range_entry *)
+      xmalloc (sizeof (*range_entries) * num_range_list);
+  range_entry_fill = range_entries;
 
-         for (; j < num; j++)
-           {
-             if (last_offset >
-                 debug_information [i].range_lists [j])
-               {
-                 use_debug_info = 0;
-                 break;
-               }
-             last_offset = debug_information [i].range_lists [j];
-           }
+  for (i = 0; i < num_debug_info_entries; i++)
+    {
+      debug_info *debug_info_p = &debug_information[i];
+      unsigned int j;
+
+      for (j = 0; j < debug_info_p->num_range_lists; j++)
+       {
+         range_entry_fill->ranges_offset = debug_info_p->range_lists[j];
+         range_entry_fill->debug_info_p = debug_info_p;
+         range_entry_fill++;
        }
     }
 
-  if (!use_debug_info)
-    /* FIXME: Should we handle this case?  */
-    error (_("Range lists in .debug_info section aren't in ascending order!\n"));
-
-  if (!seen_first_offset)
-    error (_("No range lists in .debug_info section!\n"));
+  qsort (range_entries, num_range_list, sizeof (*range_entries),
+        range_entry_compar);
 
   /* DWARF sections under Mach-O have non-zero addresses.  */
-  if (debug_information [first].range_lists [0] != section->address)
+  if (range_entries[0].ranges_offset != section->address)
     warn (_("Range lists in %s section start at 0x%lx\n"),
-         section->name, debug_information [first].range_lists [0]);
+         section->name, range_entries[0].ranges_offset);
 
   printf (_("Contents of the %s section:\n\n"), section->name);
   printf (_("    Offset   Begin    End\n"));
 
-  seen_first_offset = 0;
-  for (i = first; i < num_debug_info_entries; i++)
+  for (i = 0; i < num_range_list; i++)
     {
-      unsigned long begin;
-      unsigned long end;
-      unsigned long offset;
+      struct range_entry *range_entry = &range_entries[i];
+      debug_info *debug_info_p = range_entry->debug_info_p;
       unsigned int pointer_size;
+      unsigned long offset;
+      unsigned char *next;
       unsigned long base_address;
 
-      pointer_size = debug_information [i].pointer_size;
+      pointer_size = debug_info_p->pointer_size;
+
+      /* DWARF sections under Mach-O have non-zero addresses.  */
+      offset = range_entry->ranges_offset - section->address;
+      next = section_begin + offset;
+      base_address = debug_info_p->base_address;
 
-      for (j = 0; j < debug_information [i].num_range_lists; j++)
+      if (i > 0)
        {
-         /* DWARF sections under Mach-O have non-zero addresses.  */
-         offset = debug_information [i].range_lists [j] - section->address;
-         next = section_begin + offset;
-         base_address = debug_information [i].base_address;
+         if (start < next)
+           warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"),
+                 (unsigned long) (start - section_begin),
+                 (unsigned long) (next - section_begin), section->name);
+         else if (start > next)
+           warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"),
+                 (unsigned long) (start - section_begin),
+                 (unsigned long) (next - section_begin), section->name);
+       }
+      start = next;
 
-         if (!seen_first_offset)
-           seen_first_offset = 1;
-         else
+      while (1)
+       {
+         dwarf_vma begin;
+         dwarf_vma end;
+
+         /* Note: we use sign extension here in order to be sure that
+            we can detect the -1 escape value.  Sign extension into the
+            top 32 bits of a 32-bit address will not affect the values
+            that we display since we always show hex values, and always
+            the bottom 32-bits.  */
+         begin = byte_get_signed (start, pointer_size);
+         start += pointer_size;
+         end = byte_get_signed (start, pointer_size);
+         start += pointer_size;
+
+         printf ("    %8.8lx ", offset);
+
+         if (begin == 0 && end == 0)
            {
-             if (start < next)
-               warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"),
-                     (long)(start - section_begin),
-                     (long)(next - section_begin), section->name);
-             else if (start > next)
-               warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"),
-                     (long)(start - section_begin),
-                     (long)(next - section_begin), section->name);
+             printf (_("<End of list>\n"));
+             break;
            }
-         start = next;
 
-         while (1)
+         /* Check base address specifiers.  */
+         if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1)
            {
-             begin = byte_get (start, pointer_size);
-             start += pointer_size;
-             end = byte_get (start, pointer_size);
-             start += pointer_size;
-
-             if (begin == 0 && end == 0)
-               {
-                 printf (_("    %8.8lx <End of list>\n"), offset);
-                 break;
-               }
-
-             /* Check base address specifiers.  */
-             if (begin == -1UL && end != -1UL)
-               {
-                 base_address = end;
-                 printf ("    %8.8lx %8.8lx %8.8lx (base address)\n",
-                         offset, begin, end);
-                 continue;
-               }
+             base_address = end;
+             print_dwarf_vma (begin, pointer_size);
+             print_dwarf_vma (end, pointer_size);
+             printf ("(base address)\n");
+             continue;
+           }
 
-             printf ("    %8.8lx %8.8lx %8.8lx",
-                     offset, begin + base_address, end + base_address);
+         print_dwarf_vma (begin + base_address, pointer_size);
+         print_dwarf_vma (end + base_address, pointer_size);
 
-             if (begin == end)
-               fputs (_(" (start == end)"), stdout);
-             else if (begin > end)
-               fputs (_(" (start > end)"), stdout);
+         if (begin == end)
+           fputs (_("(start == end)"), stdout);
+         else if (begin > end)
+           fputs (_("(start > end)"), stdout);
 
-             putchar ('\n');
-           }
+         putchar ('\n');
        }
     }
   putchar ('\n');
+
+  free (range_entries);
+
   return 1;
 }
 
@@ -2767,21 +3752,32 @@ typedef struct Frame_Chunk
 }
 Frame_Chunk;
 
+static const char *const *dwarf_regnames;
+static unsigned int dwarf_regnames_count;
+
 /* A marker for a col_type that means this column was never referenced
    in the frame info.  */
 #define DW_CFA_unreferenced (-1)
 
-static void
-frame_need_space (Frame_Chunk *fc, int reg)
+/* Return 0 if not more space is needed, 1 if more space is needed,
+   -1 for invalid reg.  */
+
+static int
+frame_need_space (Frame_Chunk *fc, unsigned int reg)
 {
   int prev = fc->ncols;
 
-  if (reg < fc->ncols)
-    return;
+  if (reg < (unsigned int) fc->ncols)
+    return 0;
+
+  if (dwarf_regnames_count
+      && reg > dwarf_regnames_count)
+    return -1;
 
   fc->ncols = reg + 1;
-  fc->col_type = xcrealloc (fc->col_type, fc->ncols, sizeof (short int));
-  fc->col_offset = xcrealloc (fc->col_offset, fc->ncols, sizeof (int));
+  fc->col_type = (short int *) xcrealloc (fc->col_type, fc->ncols,
+                                          sizeof (short int));
+  fc->col_offset = (int *) xcrealloc (fc->col_offset, fc->ncols, sizeof (int));
 
   while (prev < fc->ncols)
     {
@@ -2789,6 +3785,85 @@ frame_need_space (Frame_Chunk *fc, int reg)
       fc->col_offset[prev] = 0;
       prev++;
     }
+  return 1;
+}
+
+static const char *const dwarf_regnames_i386[] =
+{
+  "eax", "ecx", "edx", "ebx",
+  "esp", "ebp", "esi", "edi",
+  "eip", "eflags", NULL,
+  "st0", "st1", "st2", "st3",
+  "st4", "st5", "st6", "st7",
+  NULL, NULL,
+  "xmm0", "xmm1", "xmm2", "xmm3",
+  "xmm4", "xmm5", "xmm6", "xmm7",
+  "mm0", "mm1", "mm2", "mm3",
+  "mm4", "mm5", "mm6", "mm7",
+  "fcw", "fsw", "mxcsr",
+  "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL,
+  "tr", "ldtr"
+};
+
+static const char *const dwarf_regnames_x86_64[] =
+{
+  "rax", "rdx", "rcx", "rbx",
+  "rsi", "rdi", "rbp", "rsp",
+  "r8",  "r9",  "r10", "r11",
+  "r12", "r13", "r14", "r15",
+  "rip",
+  "xmm0",  "xmm1",  "xmm2",  "xmm3",
+  "xmm4",  "xmm5",  "xmm6",  "xmm7",
+  "xmm8",  "xmm9",  "xmm10", "xmm11",
+  "xmm12", "xmm13", "xmm14", "xmm15",
+  "st0", "st1", "st2", "st3",
+  "st4", "st5", "st6", "st7",
+  "mm0", "mm1", "mm2", "mm3",
+  "mm4", "mm5", "mm6", "mm7",
+  "rflags",
+  "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL,
+  "fs.base", "gs.base", NULL, NULL,
+  "tr", "ldtr",
+  "mxcsr", "fcw", "fsw"
+};
+
+void
+init_dwarf_regnames (unsigned int e_machine)
+{
+  switch (e_machine)
+    {
+    case EM_386:
+    case EM_486:
+      dwarf_regnames = dwarf_regnames_i386;
+      dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_i386);
+      break;
+
+    case EM_X86_64:
+      dwarf_regnames = dwarf_regnames_x86_64;
+      dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_x86_64);
+      break;
+
+    default:
+      break;
+    }
+}
+
+static const char *
+regname (unsigned int regno, int row)
+{
+  static char reg[64];
+  if (dwarf_regnames
+      && regno < dwarf_regnames_count
+      && dwarf_regnames [regno] != NULL)
+    {
+      if (row)
+       return dwarf_regnames [regno];
+      snprintf (reg, sizeof (reg), "r%d (%s)", regno,
+               dwarf_regnames [regno]);
+    }
+  else
+    snprintf (reg, sizeof (reg), "r%d", regno);
+  return reg;
 }
 
 static void
@@ -2802,27 +3877,29 @@ frame_display_row (Frame_Chunk *fc, int *need_col_headers, int *max_regs)
 
   if (*need_col_headers)
     {
+      static const char *sloc = "   LOC";
+
       *need_col_headers = 0;
 
-      printf ("   LOC   CFA      ");
+      printf ("%-*s CFA      ", eh_addr_size * 2, sloc);
 
       for (r = 0; r < *max_regs; r++)
        if (fc->col_type[r] != DW_CFA_unreferenced)
          {
            if (r == fc->ra)
-             printf ("ra   ");
+             printf ("ra      ");
            else
-             printf ("r%-4d", r);
+             printf ("%-5s ", regname (r, 1));
          }
 
       printf ("\n");
     }
 
-  printf ("%08lx ", fc->pc_begin);
+  printf ("%0*lx ", eh_addr_size * 2, fc->pc_begin);
   if (fc->cfa_exp)
     strcpy (tmp, "exp");
   else
-    sprintf (tmp, "r%d%+d", fc->cfa_reg, fc->cfa_offset);
+    sprintf (tmp, "%s%+d", regname (fc->cfa_reg, 1), fc->cfa_offset);
   printf ("%-8s ", tmp);
 
   for (r = 0; r < fc->ncols; r++)
@@ -2844,7 +3921,7 @@ frame_display_row (Frame_Chunk *fc, int *need_col_headers, int *max_regs)
              sprintf (tmp, "v%+d", fc->col_offset[r]);
              break;
            case DW_CFA_register:
-             sprintf (tmp, "r%d", fc->col_offset[r]);
+             sprintf (tmp, "%s", regname (fc->col_offset[r], 0));
              break;
            case DW_CFA_expression:
              strcpy (tmp, "exp");
@@ -2856,35 +3933,12 @@ frame_display_row (Frame_Chunk *fc, int *need_col_headers, int *max_regs)
              strcpy (tmp, "n/a");
              break;
            }
-         printf ("%-5s", tmp);
+         printf ("%-5s ", tmp);
        }
     }
   printf ("\n");
 }
 
-static int
-size_of_encoded_value (int encoding)
-{
-  switch (encoding & 0x7)
-    {
-    default:   /* ??? */
-    case 0:    return eh_addr_size;
-    case 2:    return 2;
-    case 3:    return 4;
-    case 4:    return 8;
-    }
-}
-
-static dwarf_vma
-get_encoded_value (unsigned char *data, int encoding)
-{
-  int size = size_of_encoded_value (encoding);
-  if (encoding & DW_EH_PE_signed)
-    return byte_get_signed (data, size);
-  else
-    return byte_get (data, size);
-}
-
 #define GET(N) byte_get (start, N); start += N
 #define LEB()  read_leb128 (start, & length_return, 0); start += length_return
 #define SLEB() read_leb128 (start, & length_return, 1); start += length_return
@@ -2902,8 +3956,9 @@ display_debug_frames (struct dwarf_section *section,
   int is_eh = strcmp (section->name, ".eh_frame") == 0;
   unsigned int length_return;
   int max_regs = 0;
+  const char *bad_reg = _("bad register: ");
 
-  printf (_("The section %s contains:\n"), section->name);
+  printf (_("Contents of the %s section:\n"), section->name);
 
   while (start < end)
     {
@@ -2944,22 +3999,28 @@ display_debug_frames (struct dwarf_section *section,
        }
 
       block_end = saved_start + length + initial_length_size;
+      if (block_end > end)
+       {
+         warn ("Invalid length %#08lx in FDE at %#08lx\n",
+               length, (unsigned long)(saved_start - section_start));
+         block_end = end;
+       }
       cie_id = byte_get (start, offset_size); start += offset_size;
 
       if (is_eh ? (cie_id == 0) : (cie_id == DW_CIE_ID))
        {
          int version;
 
-         fc = xmalloc (sizeof (Frame_Chunk));
+         fc = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk));
          memset (fc, 0, sizeof (Frame_Chunk));
 
          fc->next = chunks;
          chunks = fc;
          fc->chunk_start = saved_start;
          fc->ncols = 0;
-         fc->col_type = xmalloc (sizeof (short int));
-         fc->col_offset = xmalloc (sizeof (int));
-         frame_need_space (fc, max_regs-1);
+         fc->col_type = (short int *) xmalloc (sizeof (short int));
+         fc->col_offset = (int *) xmalloc (sizeof (int));
+         frame_need_space (fc, max_regs - 1);
 
          version = *start++;
 
@@ -3078,12 +4139,11 @@ display_debug_frames (struct dwarf_section *section,
 
          if (!cie)
            {
-             warn ("Invalid CIE pointer %08lx in FDE at %08lx\n",
+             warn ("Invalid CIE pointer %#08lx in FDE at %#08lx\n",
                    cie_id, (unsigned long)(saved_start - section_start));
-             start = block_end;
              fc->ncols = 0;
-             fc->col_type = xmalloc (sizeof (short int));
-             fc->col_offset = xmalloc (sizeof (int));
+             fc->col_type = (short int *) xmalloc (sizeof (short int));
+             fc->col_offset = (int *) xmalloc (sizeof (int));
              frame_need_space (fc, max_regs - 1);
              cie = fc;
              fc->augmentation = "";
@@ -3092,8 +4152,8 @@ display_debug_frames (struct dwarf_section *section,
          else
            {
              fc->ncols = cie->ncols;
-             fc->col_type = xcmalloc (fc->ncols, sizeof (short int));
-             fc->col_offset = xcmalloc (fc->ncols, sizeof (int));
+             fc->col_type = (short int *) xcmalloc (fc->ncols, sizeof (short int));
+             fc->col_offset =  (int *) xcmalloc (fc->ncols, sizeof (int));
              memcpy (fc->col_type, cie->col_type, fc->ncols * sizeof (short int));
              memcpy (fc->col_offset, cie->col_offset, fc->ncols * sizeof (int));
              fc->augmentation = cie->augmentation;
@@ -3102,7 +4162,7 @@ display_debug_frames (struct dwarf_section *section,
              fc->cfa_reg = cie->cfa_reg;
              fc->cfa_offset = cie->cfa_offset;
              fc->ra = cie->ra;
-             frame_need_space (fc, max_regs-1);
+             frame_need_space (fc, max_regs - 1);
              fc->fde_encoding = cie->fde_encoding;
            }
 
@@ -3110,11 +4170,7 @@ display_debug_frames (struct dwarf_section *section,
            encoded_ptr_size = size_of_encoded_value (fc->fde_encoding);
 
          fc->pc_begin = get_encoded_value (start, fc->fde_encoding);
-         if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel
-             /* Don't adjust for relocatable file since there's
-                invariably a pcrel reloc here, which we haven't
-                applied.  */
-             && !is_relocatable)
+         if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel)
            fc->pc_begin += section->address + (start - section_start);
          start += encoded_ptr_size;
          fc->pc_range = byte_get (start, encoded_ptr_size);
@@ -3159,7 +4215,7 @@ display_debug_frames (struct dwarf_section *section,
          while (start < block_end)
            {
              unsigned op, opa;
-             unsigned long reg, tmp;
+             unsigned long reg, temp;
 
              op = *start++;
              opa = op & 0x3f;
@@ -3174,12 +4230,12 @@ display_debug_frames (struct dwarf_section *section,
                  break;
                case DW_CFA_offset:
                  LEB ();
-                 frame_need_space (fc, opa);
-                 fc->col_type[opa] = DW_CFA_undefined;
+                 if (frame_need_space (fc, opa) >= 0)
+                   fc->col_type[opa] = DW_CFA_undefined;
                  break;
                case DW_CFA_restore:
-                 frame_need_space (fc, opa);
-                 fc->col_type[opa] = DW_CFA_undefined;
+                 if (frame_need_space (fc, opa) >= 0)
+                   fc->col_type[opa] = DW_CFA_undefined;
                  break;
                case DW_CFA_set_loc:
                  start += encoded_ptr_size;
@@ -3196,28 +4252,29 @@ display_debug_frames (struct dwarf_section *section,
                case DW_CFA_offset_extended:
                case DW_CFA_val_offset:
                  reg = LEB (); LEB ();
-                 frame_need_space (fc, reg);
-                 fc->col_type[reg] = DW_CFA_undefined;
+                 if (frame_need_space (fc, reg) >= 0)
+                   fc->col_type[reg] = DW_CFA_undefined;
                  break;
                case DW_CFA_restore_extended:
                  reg = LEB ();
                  frame_need_space (fc, reg);
-                 fc->col_type[reg] = DW_CFA_undefined;
+                 if (frame_need_space (fc, reg) >= 0)
+                   fc->col_type[reg] = DW_CFA_undefined;
                  break;
                case DW_CFA_undefined:
                  reg = LEB ();
-                 frame_need_space (fc, reg);
-                 fc->col_type[reg] = DW_CFA_undefined;
+                 if (frame_need_space (fc, reg) >= 0)
+                   fc->col_type[reg] = DW_CFA_undefined;
                  break;
                case DW_CFA_same_value:
                  reg = LEB ();
-                 frame_need_space (fc, reg);
-                 fc->col_type[reg] = DW_CFA_undefined;
+                 if (frame_need_space (fc, reg) >= 0)
+                   fc->col_type[reg] = DW_CFA_undefined;
                  break;
                case DW_CFA_register:
                  reg = LEB (); LEB ();
-                 frame_need_space (fc, reg);
-                 fc->col_type[reg] = DW_CFA_undefined;
+                 if (frame_need_space (fc, reg) >= 0)
+                   fc->col_type[reg] = DW_CFA_undefined;
                  break;
                case DW_CFA_def_cfa:
                  LEB (); LEB ();
@@ -3229,22 +4286,22 @@ display_debug_frames (struct dwarf_section *section,
                  LEB ();
                  break;
                case DW_CFA_def_cfa_expression:
-                 tmp = LEB ();
-                 start += tmp;
+                 temp = LEB ();
+                 start += temp;
                  break;
                case DW_CFA_expression:
                case DW_CFA_val_expression:
                  reg = LEB ();
-                 tmp = LEB ();
-                 start += tmp;
-                 frame_need_space (fc, reg);
-                 fc->col_type[reg] = DW_CFA_undefined;
+                 temp = LEB ();
+                 start += temp;
+                 if (frame_need_space (fc, reg) >= 0)
+                   fc->col_type[reg] = DW_CFA_undefined;
                  break;
                case DW_CFA_offset_extended_sf:
                case DW_CFA_val_offset_sf:
                  reg = LEB (); SLEB ();
-                 frame_need_space (fc, reg);
-                 fc->col_type[reg] = DW_CFA_undefined;
+                 if (frame_need_space (fc, reg) >= 0)
+                   fc->col_type[reg] = DW_CFA_undefined;
                  break;
                case DW_CFA_def_cfa_sf:
                  LEB (); SLEB ();
@@ -3260,9 +4317,9 @@ display_debug_frames (struct dwarf_section *section,
                  break;
                case DW_CFA_GNU_negative_offset_extended:
                  reg = LEB (); LEB ();
-                 frame_need_space (fc, reg);
-                 fc->col_type[reg] = DW_CFA_undefined;
-
+                 if (frame_need_space (fc, reg) >= 0)
+                   fc->col_type[reg] = DW_CFA_undefined;
+                 break;
                default:
                  break;
                }
@@ -3279,6 +4336,7 @@ display_debug_frames (struct dwarf_section *section,
          unsigned long ul, reg, roffs;
          long l, ofs;
          dwarf_vma vma;
+         const char *reg_prefix = "";
 
          op = *start++;
          opa = op & 0x3f;
@@ -3301,24 +4359,36 @@ display_debug_frames (struct dwarf_section *section,
 
            case DW_CFA_offset:
              roffs = LEB ();
-             if (! do_debug_frames_interp)
-               printf ("  DW_CFA_offset: r%d at cfa%+ld\n",
-                       opa, roffs * fc->data_factor);
-             fc->col_type[opa] = DW_CFA_offset;
-             fc->col_offset[opa] = roffs * fc->data_factor;
+             if (opa >= (unsigned int) fc->ncols)
+               reg_prefix = bad_reg;
+             if (! do_debug_frames_interp || *reg_prefix != '\0')
+               printf ("  DW_CFA_offset: %s%s at cfa%+ld\n",
+                       reg_prefix, regname (opa, 0),
+                       roffs * fc->data_factor);
+             if (*reg_prefix == '\0')
+               {
+                 fc->col_type[opa] = DW_CFA_offset;
+                 fc->col_offset[opa] = roffs * fc->data_factor;
+               }
              break;
 
            case DW_CFA_restore:
-             if (! do_debug_frames_interp)
-               printf ("  DW_CFA_restore: r%d\n", opa);
-             fc->col_type[opa] = cie->col_type[opa];
-             fc->col_offset[opa] = cie->col_offset[opa];
+             if (opa >= (unsigned int) cie->ncols
+                 || opa >= (unsigned int) fc->ncols)
+               reg_prefix = bad_reg;
+             if (! do_debug_frames_interp || *reg_prefix != '\0')
+               printf ("  DW_CFA_restore: %s%s\n",
+                       reg_prefix, regname (opa, 0));
+             if (*reg_prefix == '\0')
+               {
+                 fc->col_type[opa] = cie->col_type[opa];
+                 fc->col_offset[opa] = cie->col_offset[opa];
+               }
              break;
 
            case DW_CFA_set_loc:
              vma = get_encoded_value (start, fc->fde_encoding);
-             if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel
-                 && !is_relocatable)
+             if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel)
                vma += section->address + (start - section_start);
              start += encoded_ptr_size;
              if (do_debug_frames_interp)
@@ -3364,63 +4434,104 @@ display_debug_frames (struct dwarf_section *section,
            case DW_CFA_offset_extended:
              reg = LEB ();
              roffs = LEB ();
-             if (! do_debug_frames_interp)
-               printf ("  DW_CFA_offset_extended: r%ld at cfa%+ld\n",
-                       reg, roffs * fc->data_factor);
-             fc->col_type[reg] = DW_CFA_offset;
-             fc->col_offset[reg] = roffs * fc->data_factor;
+             if (reg >= (unsigned int) fc->ncols)
+               reg_prefix = bad_reg;
+             if (! do_debug_frames_interp || *reg_prefix != '\0')
+               printf ("  DW_CFA_offset_extended: %s%s at cfa%+ld\n",
+                       reg_prefix, regname (reg, 0),
+                       roffs * fc->data_factor);
+             if (*reg_prefix == '\0')
+               {
+                 fc->col_type[reg] = DW_CFA_offset;
+                 fc->col_offset[reg] = roffs * fc->data_factor;
+               }
              break;
 
            case DW_CFA_val_offset:
              reg = LEB ();
              roffs = LEB ();
-             if (! do_debug_frames_interp)
-               printf ("  DW_CFA_val_offset: r%ld at cfa%+ld\n",
-                       reg, roffs * fc->data_factor);
-             fc->col_type[reg] = DW_CFA_val_offset;
-             fc->col_offset[reg] = roffs * fc->data_factor;
+             if (reg >= (unsigned int) fc->ncols)
+               reg_prefix = bad_reg;
+             if (! do_debug_frames_interp || *reg_prefix != '\0')
+               printf ("  DW_CFA_val_offset: %s%s at cfa%+ld\n",
+                       reg_prefix, regname (reg, 0),
+                       roffs * fc->data_factor);
+             if (*reg_prefix == '\0')
+               {
+                 fc->col_type[reg] = DW_CFA_val_offset;
+                 fc->col_offset[reg] = roffs * fc->data_factor;
+               }
              break;
 
            case DW_CFA_restore_extended:
              reg = LEB ();
-             if (! do_debug_frames_interp)
-               printf ("  DW_CFA_restore_extended: r%ld\n", reg);
-             fc->col_type[reg] = cie->col_type[reg];
-             fc->col_offset[reg] = cie->col_offset[reg];
+             if (reg >= (unsigned int) cie->ncols
+                 || reg >= (unsigned int) fc->ncols)
+               reg_prefix = bad_reg;
+             if (! do_debug_frames_interp || *reg_prefix != '\0')
+               printf ("  DW_CFA_restore_extended: %s%s\n",
+                       reg_prefix, regname (reg, 0));
+             if (*reg_prefix == '\0')
+               {
+                 fc->col_type[reg] = cie->col_type[reg];
+                 fc->col_offset[reg] = cie->col_offset[reg];
+               }
              break;
 
            case DW_CFA_undefined:
              reg = LEB ();
-             if (! do_debug_frames_interp)
-               printf ("  DW_CFA_undefined: r%ld\n", reg);
-             fc->col_type[reg] = DW_CFA_undefined;
-             fc->col_offset[reg] = 0;
+             if (reg >= (unsigned int) fc->ncols)
+               reg_prefix = bad_reg;
+             if (! do_debug_frames_interp || *reg_prefix != '\0')
+               printf ("  DW_CFA_undefined: %s%s\n",
+                       reg_prefix, regname (reg, 0));
+             if (*reg_prefix == '\0')
+               {
+                 fc->col_type[reg] = DW_CFA_undefined;
+                 fc->col_offset[reg] = 0;
+               }
              break;
 
            case DW_CFA_same_value:
              reg = LEB ();
-             if (! do_debug_frames_interp)
-               printf ("  DW_CFA_same_value: r%ld\n", reg);
-             fc->col_type[reg] = DW_CFA_same_value;
-             fc->col_offset[reg] = 0;
+             if (reg >= (unsigned int) fc->ncols)
+               reg_prefix = bad_reg;
+             if (! do_debug_frames_interp || *reg_prefix != '\0')
+               printf ("  DW_CFA_same_value: %s%s\n",
+                       reg_prefix, regname (reg, 0));
+             if (*reg_prefix == '\0')
+               {
+                 fc->col_type[reg] = DW_CFA_same_value;
+                 fc->col_offset[reg] = 0;
+               }
              break;
 
            case DW_CFA_register:
              reg = LEB ();
              roffs = LEB ();
-             if (! do_debug_frames_interp)
-               printf ("  DW_CFA_register: r%ld in r%ld\n", reg, roffs);
-             fc->col_type[reg] = DW_CFA_register;
-             fc->col_offset[reg] = roffs;
+             if (reg >= (unsigned int) fc->ncols)
+               reg_prefix = bad_reg;
+             if (! do_debug_frames_interp || *reg_prefix != '\0')
+               {
+                 printf ("  DW_CFA_register: %s%s in ",
+                         reg_prefix, regname (reg, 0));
+                 puts (regname (roffs, 0));
+               }
+             if (*reg_prefix == '\0')
+               {
+                 fc->col_type[reg] = DW_CFA_register;
+                 fc->col_offset[reg] = roffs;
+               }
              break;
 
            case DW_CFA_remember_state:
              if (! do_debug_frames_interp)
                printf ("  DW_CFA_remember_state\n");
-             rs = xmalloc (sizeof (Frame_Chunk));
+             rs = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk));
              rs->ncols = fc->ncols;
-             rs->col_type = xcmalloc (rs->ncols, sizeof (short int));
-             rs->col_offset = xcmalloc (rs->ncols, sizeof (int));
+             rs->col_type = (short int *) xcmalloc (rs->ncols,
+                                                     sizeof (short int));
+             rs->col_offset = (int *) xcmalloc (rs->ncols, sizeof (int));
              memcpy (rs->col_type, fc->col_type, rs->ncols);
              memcpy (rs->col_offset, fc->col_offset, rs->ncols * sizeof (int));
              rs->next = remembered_state;
@@ -3434,7 +4545,7 @@ display_debug_frames (struct dwarf_section *section,
              if (rs)
                {
                  remembered_state = rs->next;
-                 frame_need_space (fc, rs->ncols-1);
+                 frame_need_space (fc, rs->ncols - 1);
                  memcpy (fc->col_type, rs->col_type, rs->ncols);
                  memcpy (fc->col_offset, rs->col_offset,
                          rs->ncols * sizeof (int));
@@ -3451,15 +4562,16 @@ display_debug_frames (struct dwarf_section *section,
              fc->cfa_offset = LEB ();
              fc->cfa_exp = 0;
              if (! do_debug_frames_interp)
-               printf ("  DW_CFA_def_cfa: r%d ofs %d\n",
-                       fc->cfa_reg, fc->cfa_offset);
+               printf ("  DW_CFA_def_cfa: %s ofs %d\n",
+                       regname (fc->cfa_reg, 0), fc->cfa_offset);
              break;
 
            case DW_CFA_def_cfa_register:
              fc->cfa_reg = LEB ();
              fc->cfa_exp = 0;
              if (! do_debug_frames_interp)
-               printf ("  DW_CFA_def_cfa_reg: r%d\n", fc->cfa_reg);
+               printf ("  DW_CFA_def_cfa_register: %s\n",
+                       regname (fc->cfa_reg, 0));
              break;
 
            case DW_CFA_def_cfa_offset:
@@ -3478,7 +4590,8 @@ display_debug_frames (struct dwarf_section *section,
              if (! do_debug_frames_interp)
                {
                  printf ("  DW_CFA_def_cfa_expression (");
-                 decode_location_expression (start, eh_addr_size, ul, 0);
+                 decode_location_expression (start, eh_addr_size, ul, 0,
+                                             section);
                  printf (")\n");
                }
              fc->cfa_exp = 1;
@@ -3488,49 +4601,69 @@ display_debug_frames (struct dwarf_section *section,
            case DW_CFA_expression:
              reg = LEB ();
              ul = LEB ();
-             if (! do_debug_frames_interp)
+             if (reg >= (unsigned int) fc->ncols)
+               reg_prefix = bad_reg;
+             if (! do_debug_frames_interp || *reg_prefix != '\0')
                {
-                 printf ("  DW_CFA_expression: r%ld (", reg);
-                 decode_location_expression (start, eh_addr_size, ul, 0);
+                 printf ("  DW_CFA_expression: %s%s (",
+                         reg_prefix, regname (reg, 0));
+                 decode_location_expression (start, eh_addr_size,
+                                             ul, 0, section);
                  printf (")\n");
                }
-             fc->col_type[reg] = DW_CFA_expression;
+             if (*reg_prefix == '\0')
+               fc->col_type[reg] = DW_CFA_expression;
              start += ul;
              break;
 
            case DW_CFA_val_expression:
              reg = LEB ();
              ul = LEB ();
-             if (! do_debug_frames_interp)
+             if (reg >= (unsigned int) fc->ncols)
+               reg_prefix = bad_reg;
+             if (! do_debug_frames_interp || *reg_prefix != '\0')
                {
-                 printf ("  DW_CFA_val_expression: r%ld (", reg);
-                 decode_location_expression (start, eh_addr_size, ul, 0);
+                 printf ("  DW_CFA_val_expression: %s%s (",
+                         reg_prefix, regname (reg, 0));
+                 decode_location_expression (start, eh_addr_size, ul, 0,
+                                             section);
                  printf (")\n");
                }
-             fc->col_type[reg] = DW_CFA_val_expression;
+             if (*reg_prefix == '\0')
+               fc->col_type[reg] = DW_CFA_val_expression;
              start += ul;
              break;
 
            case DW_CFA_offset_extended_sf:
              reg = LEB ();
              l = SLEB ();
-             frame_need_space (fc, reg);
-             if (! do_debug_frames_interp)
-               printf ("  DW_CFA_offset_extended_sf: r%ld at cfa%+ld\n",
-                       reg, l * fc->data_factor);
-             fc->col_type[reg] = DW_CFA_offset;
-             fc->col_offset[reg] = l * fc->data_factor;
+             if (frame_need_space (fc, reg) < 0)
+               reg_prefix = bad_reg;
+             if (! do_debug_frames_interp || *reg_prefix != '\0')
+               printf ("  DW_CFA_offset_extended_sf: %s%s at cfa%+ld\n",
+                       reg_prefix, regname (reg, 0),
+                       l * fc->data_factor);
+             if (*reg_prefix == '\0')
+               {
+                 fc->col_type[reg] = DW_CFA_offset;
+                 fc->col_offset[reg] = l * fc->data_factor;
+               }
              break;
 
            case DW_CFA_val_offset_sf:
              reg = LEB ();
              l = SLEB ();
-             frame_need_space (fc, reg);
-             if (! do_debug_frames_interp)
-               printf ("  DW_CFA_val_offset_sf: r%ld at cfa%+ld\n",
-                       reg, l * fc->data_factor);
-             fc->col_type[reg] = DW_CFA_val_offset;
-             fc->col_offset[reg] = l * fc->data_factor;
+             if (frame_need_space (fc, reg) < 0)
+               reg_prefix = bad_reg;
+             if (! do_debug_frames_interp || *reg_prefix != '\0')
+               printf ("  DW_CFA_val_offset_sf: %s%s at cfa%+ld\n",
+                       reg_prefix, regname (reg, 0),
+                       l * fc->data_factor);
+             if (*reg_prefix == '\0')
+               {
+                 fc->col_type[reg] = DW_CFA_val_offset;
+                 fc->col_offset[reg] = l * fc->data_factor;
+               }
              break;
 
            case DW_CFA_def_cfa_sf:
@@ -3539,8 +4672,8 @@ display_debug_frames (struct dwarf_section *section,
              fc->cfa_offset = fc->cfa_offset * fc->data_factor;
              fc->cfa_exp = 0;
              if (! do_debug_frames_interp)
-               printf ("  DW_CFA_def_cfa_sf: r%d ofs %d\n",
-                       fc->cfa_reg, fc->cfa_offset);
+               printf ("  DW_CFA_def_cfa_sf: %s ofs %d\n",
+                       regname (fc->cfa_reg, 0), fc->cfa_offset);
              break;
 
            case DW_CFA_def_cfa_offset_sf:
@@ -3575,16 +4708,24 @@ display_debug_frames (struct dwarf_section *section,
            case DW_CFA_GNU_negative_offset_extended:
              reg = LEB ();
              l = - LEB ();
-             frame_need_space (fc, reg);
-             if (! do_debug_frames_interp)
-               printf ("  DW_CFA_GNU_negative_offset_extended: r%ld at cfa%+ld\n",
-                       reg, l * fc->data_factor);
-             fc->col_type[reg] = DW_CFA_offset;
-             fc->col_offset[reg] = l * fc->data_factor;
+             if (frame_need_space (fc, reg) < 0)
+               reg_prefix = bad_reg;
+             if (! do_debug_frames_interp || *reg_prefix != '\0')
+               printf ("  DW_CFA_GNU_negative_offset_extended: %s%s at cfa%+ld\n",
+                       reg_prefix, regname (reg, 0),
+                       l * fc->data_factor);
+             if (*reg_prefix == '\0')
+               {
+                 fc->col_type[reg] = DW_CFA_offset;
+                 fc->col_offset[reg] = l * fc->data_factor;
+               }
              break;
 
            default:
-             warn (_("unsupported or unknown DW_CFA_%d\n"), op);
+             if (op >= DW_CFA_lo_user && op <= DW_CFA_hi_user)
+               printf (_("  DW_CFA_??? (User defined call frame op: %#x)\n"), op);
+             else
+               warn (_("unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op);
              start = block_end;
            }
        }
@@ -3669,64 +4810,220 @@ warn (const char *message, ...)
 void
 free_debug_memory (void)
 {
-  enum dwarf_section_display_enum i;
+  unsigned int i;
 
   free_abbrevs ();
 
   for (i = 0; i < max; i++)
-    free_debug_section (i);
+    free_debug_section ((enum dwarf_section_display_enum) i);
 
-  if (debug_information)
+  if (debug_information != NULL)
     {
-      for (i = 0; i < num_debug_info_entries; i++)
+      if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE)
        {
-         if (!debug_information [i].max_loc_offsets)
+         for (i = 0; i < num_debug_info_entries; i++)
            {
-             free (debug_information [i].loc_offsets);
-             free (debug_information [i].have_frame_base);
+             if (!debug_information [i].max_loc_offsets)
+               {
+                 free (debug_information [i].loc_offsets);
+                 free (debug_information [i].have_frame_base);
+               }
+             if (!debug_information [i].max_range_lists)
+               free (debug_information [i].range_lists);
            }
-         if (!debug_information [i].max_range_lists)
-           free (debug_information [i].range_lists);
        }
+
       free (debug_information);
       debug_information = NULL;
       num_debug_info_entries = 0;
     }
+}
+
+void
+dwarf_select_sections_by_names (const char *names)
+{
+  typedef struct
+  {
+    const char * option;
+    int *        variable;
+    int          val;
+  }
+  debug_dump_long_opts;
+
+  static const debug_dump_long_opts opts_table [] =
+    {
+      /* Please keep this table alpha- sorted.  */
+      { "Ranges", & do_debug_ranges, 1 },
+      { "abbrev", & do_debug_abbrevs, 1 },
+      { "aranges", & do_debug_aranges, 1 },
+      { "frames", & do_debug_frames, 1 },
+      { "frames-interp", & do_debug_frames_interp, 1 },
+      { "info", & do_debug_info, 1 },
+      { "line", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, /* For backwards compatibility.  */
+      { "rawline", & do_debug_lines, FLAG_DEBUG_LINES_RAW },
+      { "decodedline", & do_debug_lines, FLAG_DEBUG_LINES_DECODED },
+      { "loc",  & do_debug_loc, 1 },
+      { "macro", & do_debug_macinfo, 1 },
+      { "pubnames", & do_debug_pubnames, 1 },
+      { "pubtypes", & do_debug_pubtypes, 1 },
+      /* This entry is for compatability
+        with earlier versions of readelf.  */
+      { "ranges", & do_debug_aranges, 1 },
+      { "str", & do_debug_str, 1 },
+      { NULL, NULL, 0 }
+    };
+
+  const char *p;
+  
+  p = names;
+  while (*p)
+    {
+      const debug_dump_long_opts * entry;
+      
+      for (entry = opts_table; entry->option; entry++)
+       {
+         size_t len = strlen (entry->option);
+         
+         if (strncmp (p, entry->option, len) == 0
+             && (p[len] == ',' || p[len] == '\0'))
+           {
+             * entry->variable |= entry->val;
+             
+             /* The --debug-dump=frames-interp option also
+                enables the --debug-dump=frames option.  */
+             if (do_debug_frames_interp)
+               do_debug_frames = 1;
+
+             p += len;
+             break;
+           }
+       }
+      
+      if (entry->option == NULL)
+       {
+         warn (_("Unrecognized debug option '%s'\n"), p);
+         p = strchr (p, ',');
+         if (p == NULL)
+           break;
+       }
+      
+      if (*p == ',')
+       p++;
+    }
+}
+
+void
+dwarf_select_sections_by_letters (const char *letters)
+{
+  unsigned int lindex = 0;
 
+  while (letters[lindex])
+    switch (letters[lindex++])
+      {
+      case 'i':
+       do_debug_info = 1;
+       break;
+       
+      case 'a':
+       do_debug_abbrevs = 1;
+       break;
+       
+      case 'l':
+       do_debug_lines |= FLAG_DEBUG_LINES_RAW;
+       break;
+       
+      case 'L':
+       do_debug_lines |= FLAG_DEBUG_LINES_DECODED;
+       break;
+       
+      case 'p':
+       do_debug_pubnames = 1;
+       break;
+       
+      case 't':
+       do_debug_pubtypes = 1;
+       break;
+       
+      case 'r':
+       do_debug_aranges = 1;
+       break;
+       
+      case 'R':
+       do_debug_ranges = 1;
+       break;
+       
+      case 'F':
+       do_debug_frames_interp = 1;
+      case 'f':
+       do_debug_frames = 1;
+       break;
+       
+      case 'm':
+       do_debug_macinfo = 1;
+       break;
+       
+      case 's':
+       do_debug_str = 1;
+       break;
+       
+      case 'o':
+       do_debug_loc = 1;
+       break;
+       
+      default:
+       warn (_("Unrecognized debug option '%s'\n"), optarg);
+       break;
+      }
+}
+
+void
+dwarf_select_sections_all (void)
+{
+  do_debug_info = 1;
+  do_debug_abbrevs = 1;
+  do_debug_lines = FLAG_DEBUG_LINES_RAW;
+  do_debug_pubnames = 1;
+  do_debug_pubtypes = 1;
+  do_debug_aranges = 1;
+  do_debug_ranges = 1;
+  do_debug_frames = 1;
+  do_debug_macinfo = 1;
+  do_debug_str = 1;
+  do_debug_loc = 1;
 }
 
 struct dwarf_section_display debug_displays[] =
 {
-  { { ".debug_abbrev",         NULL,   0,      0 },
-    display_debug_abbrev,              0,      0 },
-  { { ".debug_aranges",                NULL,   0,      0 },
-    display_debug_aranges,             0,      0 },
-  { { ".debug_frame",          NULL,   0,      0 },
-    display_debug_frames,              1,      0 },
-  { { ".debug_info",           NULL,   0,      0 },
-    display_debug_info,                        1,      0 },
-  { { ".debug_line",           NULL,   0,      0 },
-    display_debug_lines,               0,      0 },
-  { { ".debug_pubnames",       NULL,   0,      0 },
-    display_debug_pubnames,            0,      0 },
-  { { ".eh_frame",             NULL,   0,      0 },
-    display_debug_frames,              1,      1 },
-  { { ".debug_macinfo",                NULL,   0,      0 },
-    display_debug_macinfo,             0,      0 },
-  { { ".debug_str",            NULL,   0,      0 },
-    display_debug_str,                 0,      0 },
-  { { ".debug_loc",            NULL,   0,      0 },
-    display_debug_loc,                 0,      0 },
-  { { ".debug_pubtypes",       NULL,   0,      0 },
-    display_debug_pubnames,            0,      0 },
-  { { ".debug_ranges",         NULL,   0,      0 },
-    display_debug_ranges,              0,      0 },
-  { { ".debug_static_func",    NULL,   0,      0 },
-    display_debug_not_supported,       0,      0 },
-  { { ".debug_static_vars",    NULL,   0,      0 },
-    display_debug_not_supported,       0,      0 },
-  { { ".debug_types",          NULL,   0,      0 },
-    display_debug_not_supported,       0,      0 },
-  { { ".debug_weaknames",      NULL,   0,      0 },
-    display_debug_not_supported,       0,      0 }
+  { { ".debug_abbrev",         ".zdebug_abbrev",       NULL,   NULL,   0,      0 },
+    display_debug_abbrev,              &do_debug_abbrevs,      0 },
+  { { ".debug_aranges",                ".zdebug_aranges",      NULL,   NULL,   0,      0 },
+    display_debug_aranges,             &do_debug_aranges,      1 },
+  { { ".debug_frame",          ".zdebug_frame",        NULL,   NULL,   0,      0 },
+    display_debug_frames,              &do_debug_frames,       1 },
+  { { ".debug_info",           ".zdebug_info",         NULL,   NULL,   0,      0 },
+    display_debug_info,                        &do_debug_info,         1 },
+  { { ".debug_line",           ".zdebug_line",         NULL,   NULL,   0,      0 },
+    display_debug_lines,               &do_debug_lines,        1 },
+  { { ".debug_pubnames",       ".zdebug_pubnames",     NULL,   NULL,   0,      0 },
+    display_debug_pubnames,            &do_debug_pubnames,     0 },
+  { { ".eh_frame",             "",                     NULL,   NULL,   0,      0 },
+    display_debug_frames,              &do_debug_frames,       1 },
+  { { ".debug_macinfo",                ".zdebug_macinfo",      NULL,   NULL,   0,      0 },
+    display_debug_macinfo,             &do_debug_macinfo,      0 },
+  { { ".debug_str",            ".zdebug_str",          NULL,   NULL,   0,      0 },
+    display_debug_str,                 &do_debug_str,          0 },
+  { { ".debug_loc",            ".zdebug_loc",          NULL,   NULL,   0,      0 },
+    display_debug_loc,                 &do_debug_loc,          1 },
+  { { ".debug_pubtypes",       ".zdebug_pubtypes",     NULL,   NULL,   0,      0 },
+    display_debug_pubnames,            &do_debug_pubtypes,     0 },
+  { { ".debug_ranges",         ".zdebug_ranges",       NULL,   NULL,   0,      0 },
+    display_debug_ranges,              &do_debug_ranges,       1 },
+  { { ".debug_static_func",    ".zdebug_static_func",  NULL,   NULL,   0,      0 },
+    display_debug_not_supported,       NULL,                   0 },
+  { { ".debug_static_vars",    ".zdebug_static_vars",  NULL,   NULL,   0,      0 },
+    display_debug_not_supported,       NULL,                   0 },
+  { { ".debug_types",          ".zdebug_types",        NULL,   NULL,   0,      0 },
+    display_debug_types,               &do_debug_info,         1 },
+  { { ".debug_weaknames",      ".zdebug_weaknames",    NULL,   NULL,   0,      0 },
+    display_debug_not_supported,       NULL,                   0 }
 };
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