powerpc: Dump dynamic relocation info to the map file

Dump dynamic relocation info to the map file when generating dynamic
relocation in read-only section relocations if -Map is used.

	* elf32-ppc.c (readonly_dynrelocs): Add a link_info argument.
	Dump dynamic relocation in read-only section with minfo if
	needed.
	(ppc_elf_adjust_dynamic_symbol): Pass NULL to readonly_dynrelocs.
	(maybe_set_textrel): Likewise.
	(ppc_elf_size_dynamic_sections): Dump dynamic relocation in
	read-only section with minfo.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index b4611e571c7368635f86f59c386ddda29384499c..39232290154724827a275881af46a4f2dffd3421 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,13 @@
+2017-10-05  H.J. Lu  <hongjiu.lu@intel.com>
+
+       * elf32-ppc.c (readonly_dynrelocs): Add a link_info argument.
+       Dump dynamic relocation in read-only section with minfo if
+       needed.
+       (ppc_elf_adjust_dynamic_symbol): Pass NULL to readonly_dynrelocs.
+       (maybe_set_textrel): Likewise.
+       (ppc_elf_size_dynamic_sections): Dump dynamic relocation in
+       read-only section with minfo.
+
 2017-10-05  John Baldwin  <jhb@FreeBSD.org>
 
        * elf.c (elfcore_grok_freebsd_note): Handle NT_ARM_VFP.

diff --git a/bfd/elf32-ppc.c b/bfd/elf32-ppc.c
index eb8ba62557bcdf85c783311f894d30eeb7a9f4cb..bfd7e067b388e51693fdff94d97bfde43a4e4476 100644 (file)
--- a/bfd/elf32-ppc.c
+++ b/bfd/elf32-ppc.c
@@ -5674,7 +5674,8 @@ ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
 /* Return true if we have dynamic relocs that apply to read-only sections.  */
 
 static bfd_boolean
-readonly_dynrelocs (struct elf_link_hash_entry *h)
+readonly_dynrelocs (struct elf_link_hash_entry *h,
+                   struct bfd_link_info *info)
 {
   struct elf_dyn_relocs *p;
 
@@ -5685,7 +5686,13 @@ readonly_dynrelocs (struct elf_link_hash_entry *h)
       if (s != NULL
          && ((s->flags & (SEC_READONLY | SEC_ALLOC))
              == (SEC_READONLY | SEC_ALLOC)))
-       return TRUE;
+       {
+         if (info)
+           info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
+                                   p->sec->owner, p->sec);
+
+         return TRUE;
+       }
     }
   return FALSE;
 }
@@ -5763,7 +5770,7 @@ ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
               || (!h->ref_regular_nonweak && h->non_got_ref))
              && !htab->is_vxworks
              && !ppc_elf_hash_entry (h)->has_sda_refs
-             && !readonly_dynrelocs (h))
+             && !readonly_dynrelocs (h, NULL))
            {
              h->pointer_equality_needed = 0;
              /* After adjust_dynamic_symbol, non_got_ref set in the
@@ -5846,7 +5853,7 @@ ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
       && !ppc_elf_hash_entry (h)->has_sda_refs
       && !htab->is_vxworks
       && !h->def_regular
-      && !readonly_dynrelocs (h))
+      && !readonly_dynrelocs (h, NULL))
     {
       h->non_got_ref = 0;
       return TRUE;
@@ -6335,14 +6342,17 @@ allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
    read-only sections.  */
 
 static bfd_boolean
-maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
+maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
 {
+  struct bfd_link_info *info;
+
   if (h->root.type == bfd_link_hash_indirect)
     return TRUE;
 
-  if (readonly_dynrelocs (h))
+  info = (struct bfd_link_info *) info_p;
+  if (readonly_dynrelocs (h, info))
     {
-      ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
+      info->flags |= DF_TEXTREL;
 
       /* Not an error, just cut short the traversal.  */
       return FALSE;
@@ -6447,7 +6457,11 @@ ppc_elf_size_dynamic_sections (bfd *output_bfd,
                  if ((p->sec->output_section->flags
                       & (SEC_READONLY | SEC_ALLOC))
                      == (SEC_READONLY | SEC_ALLOC))
-                   info->flags |= DF_TEXTREL;
+                   {
+                     info->flags |= DF_TEXTREL;
+                     info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
+                                             p->sec->owner, p->sec);
+                   }
                }
            }
        }