2005-02-14 H.J. Lu <hongjiu.lu@intel.com>

	* elfxx-ia64.c (elfNN_ia64_relax_section): Allow relax
	backward branch in the same section.
	(elfNN_ia64_relocate_section): Inform users that the input
	section is too big to relax br instruction when overflow
	happens to R_IA64_PCREL21B, R_IA64_PCREL21BI, R_IA64_PCREL21M
	and R_IA64_PCREL21F.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 38920f6..42cad6e 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,12 @@
+2005-02-14  H.J. Lu  <hongjiu.lu@intel.com>
+
+       * elfxx-ia64.c (elfNN_ia64_relax_section): Allow relax
+       backward branch in the same section.
+       (elfNN_ia64_relocate_section): Inform users that the input
+       section is too big to relax br instruction when overflow
+       happens to R_IA64_PCREL21B, R_IA64_PCREL21BI, R_IA64_PCREL21M
+       and R_IA64_PCREL21F.
+
 2005-02-14 Orjan Friberg <orjanf@axis.com>
 
        * elfcore.h (elf_core_file_p): Move the call to

diff --git a/bfd/elfxx-ia64.c b/bfd/elfxx-ia64.c
index 135a337..1b8da47 100644 (file)
--- a/bfd/elfxx-ia64.c
+++ b/bfd/elfxx-ia64.c
@@ -984,9 +984,10 @@ elfNN_ia64_relax_section (abfd, sec, link_info, again)
            }
 
          /* If the branch and target are in the same section, you've
-            got one honking big section and we can't help you.  You'll
-            get an error message later.  */
-         if (tsec == sec)
+            got one honking big section and we can't help you unless
+            you are branching backwards.  You'll get an error message
+            later.  */
+         if (tsec == sec && toff > roff)
            continue;
 
          /* Look for an existing fixup to this address.  */
@@ -4504,13 +4505,37 @@ elfNN_ia64_relocate_section (output_bfd, info, input_bfd, input_section,
                if (*name == '\0')
                  name = bfd_section_name (input_bfd, sym_sec);
              }
-           if (!(*info->callbacks->reloc_overflow) (info, &h->root,
-                                                    name, howto->name,
-                                                    (bfd_vma) 0,
-                                                    input_bfd,
-                                                    input_section,
-                                                    rel->r_offset))
-             return FALSE;
+
+           switch (r_type)
+             {
+             case R_IA64_PCREL21B:
+             case R_IA64_PCREL21BI:
+             case R_IA64_PCREL21M:
+             case R_IA64_PCREL21F:
+               if (is_elf_hash_table (info->hash))
+                 {
+                   /* Relaxtion is always performed for ELF output.
+                      Overflow failures for those relocations mean
+                      that the section is too big to relax.  */
+                   (*_bfd_error_handler)
+                     (_("%B: Can't relax br (%s) to `%s' at 0x%lx in section `%A' with size 0x%lx (> 0x1000000)."),
+                      input_bfd, input_section, howto->name, name,
+                      rel->r_offset, input_section->size);
+                   break;
+                 }
+             default:
+               if (!(*info->callbacks->reloc_overflow) (info,
+                                                        &h->root,
+                                                        name,
+                                                        howto->name,
+                                                        (bfd_vma) 0,
+                                                        input_bfd,
+                                                        input_section,
+                                                        rel->r_offset))
+                 return FALSE;
+               break;
+             }
+
            ret_val = FALSE;
          }
          break;