gdb: add target_ops::supports_displaced_step

[deliverable/binutils-gdb.git] / bfd / elf-eh-frame.c

diff --git a/bfd/elf-eh-frame.c b/bfd/elf-eh-frame.c
index d61c915dde5a7b51386b824291365116f00bf2f1..7a129b00f8d78fecd8c450ef8aca564eea4a9485 100644 (file)
--- a/bfd/elf-eh-frame.c
+++ b/bfd/elf-eh-frame.c
@@ -1,5 +1,5 @@
 /* .eh_frame section optimization.
-   Copyright (C) 2001-2018 Free Software Foundation, Inc.
+   Copyright (C) 2001-2020 Free Software Foundation, Inc.
    Written by Jakub Jelinek <jakub@redhat.com>.
 
    This file is part of BFD, the Binary File Descriptor library.
@@ -797,6 +797,8 @@ _bfd_elf_parse_eh_frame (bfd *abfd, struct bfd_link_info *info,
              while (*aug != '\0')
                switch (*aug++)
                  {
+                 case 'B':
+                   break;
                  case 'L':
                    REQUIRE (read_byte (&buf, end, &cie->lsda_encoding));
                    ENSURE_NO_RELOCS (buf);
@@ -1042,18 +1044,15 @@ _bfd_elf_parse_eh_frame (bfd *abfd, struct bfd_link_info *info,
   goto success;
 
  free_no_table:
-  (*info->callbacks->einfo)
+  _bfd_error_handler
     /* xgettext:c-format */
-    (_("%P: error in %pB(%pA); no .eh_frame_hdr table will be created.\n"),
+    (_("error in %pB(%pA); no .eh_frame_hdr table will be created"),
      abfd, sec);
   hdr_info->u.dwarf.table = FALSE;
-  if (sec_info)
-    free (sec_info);
+  free (sec_info);
  success:
-  if (ehbuf)
-    free (ehbuf);
-  if (local_cies)
-    free (local_cies);
+  free (ehbuf);
+  free (local_cies);
 #undef REQUIRE
 }
 
@@ -1107,7 +1106,7 @@ add_eh_frame_hdr_terminator (asection *sec,
   if (!sec->rawsize)
     sec->rawsize = sec->size;
 
-  bfd_set_section_size (sec->owner, sec, sec->size + 8);
+  bfd_set_section_size (sec, sec->size + 8);
 }
 
 /* Finish a pass over all .eh_frame_entry sections.  */
@@ -1530,19 +1529,23 @@ _bfd_elf_discard_section_eh_frame
                   don't create the binary search table,
                   since it is affected by runtime relocations.  */
                hdr_info->u.dwarf.table = FALSE;
-               if (num_warnings_issued < 10)
-                 {
-                   (*info->callbacks->einfo)
-                     /* xgettext:c-format */
-                     (_("%P: FDE encoding in %pB(%pA) prevents .eh_frame_hdr"
-                        " table being created.\n"), abfd, sec);
-                   num_warnings_issued ++;
-                 }
-               else if (num_warnings_issued == 10)
+               /* Only warn if --eh-frame-hdr was specified.  */
+               if (info->eh_frame_hdr_type != 0)
                  {
-                   (*info->callbacks->einfo)
-                     (_("%P: Further warnings about FDE encoding preventing .eh_frame_hdr generation dropped.\n"));
-                   num_warnings_issued ++;
+                   if (num_warnings_issued < 10)
+                     {
+                       _bfd_error_handler
+                         /* xgettext:c-format */
+                         (_("FDE encoding in %pB(%pA) prevents .eh_frame_hdr"
+                            " table being created"), abfd, sec);
+                       num_warnings_issued ++;
+                     }
+                   else if (num_warnings_issued == 10)
+                     {
+                       _bfd_error_handler
+                         (_("further warnings about FDE encoding preventing .eh_frame_hdr generation dropped"));
+                       num_warnings_issued ++;
+                     }
                  }
              }
            ent->removed = 0;
@@ -1552,11 +1555,8 @@ _bfd_elf_discard_section_eh_frame
          }
       }
 
-  if (sec_info->cies)
-    {
-      free (sec_info->cies);
-      sec_info->cies = NULL;
-    }
+  free (sec_info->cies);
+  sec_info->cies = NULL;
 
   /* It may be that some .eh_frame input section has greater alignment
      than other .eh_frame sections.  In that case we run the risk of
@@ -1680,7 +1680,7 @@ _bfd_elf_eh_frame_entry_present (struct bfd_link_info *info)
     {
       for (o = abfd->sections; o; o = o->next)
        {
-         const char *name = bfd_get_section_name (abfd, o);
+         const char *name = bfd_section_name (o);
 
          if (strcmp (name, ".eh_frame_entry")
              && !bfd_is_abs_section (o->output_section))
@@ -1991,7 +1991,7 @@ _bfd_elf_write_section_eh_frame (bfd *abfd,
              || ent->u.cie.per_encoding_relative)
            {
              char *aug;
-             unsigned int action, extra_string, extra_data;
+             unsigned int version, action, extra_string, extra_data;
              unsigned int per_width, per_encoding;
 
              /* Need to find 'R' or 'L' augmentation's argument and modify
@@ -2002,13 +2002,17 @@ _bfd_elf_write_section_eh_frame (bfd *abfd,
              extra_string = extra_augmentation_string_bytes (ent);
              extra_data = extra_augmentation_data_bytes (ent);
 
-             /* Skip length, id and version.  */
-             buf += 9;
+             /* Skip length, id.  */
+             buf += 8;
+             version = *buf++;
              aug = (char *) buf;
              buf += strlen (aug) + 1;
              skip_leb128 (&buf, end);
              skip_leb128 (&buf, end);
-             skip_leb128 (&buf, end);
+             if (version == 1)
+               skip_bytes (&buf, end, 1);
+             else
+               skip_leb128 (&buf, end);
              if (*aug == 'z')
                {
                  /* The uleb128 will always be a single byte for the kind
@@ -2133,12 +2137,13 @@ _bfd_elf_write_section_eh_frame (bfd *abfd,
                        address += elf_gp (abfd);
                        break;
                      default:
-                       (*info->callbacks->einfo)
-                         (_("%P: DW_EH_PE_datarel unspecified"
-                            " for this architecture.\n"));
+                       _bfd_error_handler
+                         (_("DW_EH_PE_datarel unspecified"
+                            " for this architecture"));
                        /* Fall thru */
                      case bfd_arch_frv:
                      case bfd_arch_i386:
+                     case bfd_arch_nios2:
                        BFD_ASSERT (htab->hgot != NULL
                                    && ((htab->hgot->root.type
                                         == bfd_link_hash_defined)
@@ -2304,7 +2309,7 @@ _bfd_elf_fixup_eh_frame_hdr (struct bfd_link_info *info)
       if (sec->output_section != osec)
        {
          _bfd_error_handler
-           (_("Invalid output section for .eh_frame_entry: %pA"),
+           (_("invalid output section for .eh_frame_entry: %pA"),
             sec->output_section);
          return FALSE;
        }
@@ -2327,7 +2332,7 @@ _bfd_elf_fixup_eh_frame_hdr (struct bfd_link_info *info)
   if (i != 0)
     {
       _bfd_error_handler
-       (_("Invalid contents in %pA section"), osec);
+       (_("invalid contents in %pA section"), osec);
       return FALSE;
     }
 
@@ -2483,10 +2488,9 @@ write_dwarf_eh_frame_hdr (bfd *abfd, struct bfd_link_info *info)
            overlap = TRUE;
        }
       if (overflow)
-       (*info->callbacks->einfo) (_("%P: .eh_frame_hdr entry overflow.\n"));
+       _bfd_error_handler (_(".eh_frame_hdr entry overflow"));
       if (overlap)
-       (*info->callbacks->einfo)
-         (_("%P: .eh_frame_hdr refers to overlapping FDEs.\n"));
+       _bfd_error_handler (_(".eh_frame_hdr refers to overlapping FDEs"));
       if (overflow || overlap)
        {
          bfd_set_error (bfd_error_bad_value);
@@ -2501,8 +2505,7 @@ write_dwarf_eh_frame_hdr (bfd *abfd, struct bfd_link_info *info)
     retval = FALSE;
   free (contents);
 
-  if (hdr_info->u.dwarf.array != NULL)
-    free (hdr_info->u.dwarf.array);
+  free (hdr_info->u.dwarf.array);
   return retval;
 }