Warn relocation in readonly section in a shared object.

2011-04-22  H.J. Lu  <hongjiu.lu@intel.com>

	* elf32-i386.c (elf_i386_readonly_dynrelocs): Warn relocation
	in readonly section in a shared object.
	(elf_i386_size_dynamic_sections): Likewise.
	* elf64-x86-64.c (elf_x86_64_readonly_dynrelocs): Likewise.
	(elf_x86_64_size_dynamic_sections): Likewise.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 4d98456..cc10c52 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,11 @@
+2011-04-22  H.J. Lu  <hongjiu.lu@intel.com>
+
+       * elf32-i386.c (elf_i386_readonly_dynrelocs): Warn relocation
+       in readonly section in a shared object.
+       (elf_i386_size_dynamic_sections): Likewise.
+       * elf64-x86-64.c (elf_x86_64_readonly_dynrelocs): Likewise.
+       (elf_x86_64_size_dynamic_sections): Likewise.
+
 2011-04-21  H.J. Lu  <hongjiu.lu@intel.com>
 
        PR ld/12694

diff --git a/bfd/elf32-i386.c b/bfd/elf32-i386.c
index bb79f89..e32ec83 100644 (file)
--- a/bfd/elf32-i386.c
+++ b/bfd/elf32-i386.c
@@ -2399,6 +2399,11 @@ elf_i386_readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
 
          info->flags |= DF_TEXTREL;
 
+         if (info->warn_shared_textrel && info->shared)
+           info->callbacks->einfo (_("%P: %B: warning: relocation against `%s' in readonly section `%A'.\n"),
+                                   p->sec->owner, h->root.root.string,
+                                   p->sec);
+
          /* Not an error, just cut short the traversal.  */
          return FALSE;
        }
@@ -2482,7 +2487,13 @@ elf_i386_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
                  srel = elf_section_data (p->sec)->sreloc;
                  srel->size += p->count * sizeof (Elf32_External_Rel);
                  if ((p->sec->output_section->flags & SEC_READONLY) != 0)
-                   info->flags |= DF_TEXTREL;
+                   {
+                     info->flags |= DF_TEXTREL;
+                     if (info->warn_shared_textrel && info->shared)
+                       info->callbacks->einfo (_("%P: %B: warning: relocation in readonly section `%A'.\n"),
+                                               p->sec->owner, p->sec);
+                     break;
+                   }
                }
            }
        }

diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c
index 8d00edd..a02b3e8 100644 (file)
--- a/bfd/elf64-x86-64.c
+++ b/bfd/elf64-x86-64.c
@@ -2314,6 +2314,11 @@ elf_x86_64_readonly_dynrelocs (struct elf_link_hash_entry *h,
 
          info->flags |= DF_TEXTREL;
 
+         if (info->warn_shared_textrel && info->shared)
+           info->callbacks->einfo (_("%P: %B: warning: relocation against `%s' in readonly section `%A'.\n"),
+                                   p->sec->owner, h->root.root.string,
+                                   p->sec);
+
          /* Not an error, just cut short the traversal.  */
          return FALSE;
        }
@@ -2393,7 +2398,13 @@ elf_x86_64_size_dynamic_sections (bfd *output_bfd,
                  srel = elf_section_data (p->sec)->sreloc;
                  srel->size += p->count * bed->s->sizeof_rela;
                  if ((p->sec->output_section->flags & SEC_READONLY) != 0)
-                   info->flags |= DF_TEXTREL;
+                   {
+                     info->flags |= DF_TEXTREL;
+                     if (info->warn_shared_textrel && info->shared)
+                       info->callbacks->einfo (_("%P: %B: warning: relocation in readonly section `%A'.\n"),
+                                               p->sec->owner, p->sec);
+                     break;
+                   }
                }
            }
        }