bfd/ChangeLog:

	PR ld/12365
	* cofflink.c (bfd_coff_link_input_bfd): Check for and warn about
	references to symbols defined in discarded sections.

ld/ChangeLog:

	PR ld/12365
	* scripttempl/pe.sc (__rt_psrelocs_start): New symbol definition.
	(__rt_psrelocs_end): Likewise.
	(__rt_psrelocs_size): Likewise difference between the above.
	(__RUNTIME_PSEUDO_RELOC_LIST_END__): Move outside .rdata section
	immediately after end of pseudo-reloc data.
	(___RUNTIME_PSEUDO_RELOC_LIST_END___): Likewise.
	(__RUNTIME_PSEUDO_RELOC_LIST__): Move outside .rdata section and
	calculate backward from list end.
	(___RUNTIME_PSEUDO_RELOC_LIST___): Likewise.
	* scripttempl/pep.sc: Likewise.

ld/testsuite/ChangeLog:

	PR ld/12365
	* ld-plugin/plugin-7.d: Allow underscore in error message.
	* ld-plugin/plugin-8.d: Likewise.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 10255da..b8c2cf4 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,6 +1,12 @@
 2011-05-07  Dave Korn  <dave.korn.cygwin@gmail.com>
 
        PR ld/12365
+       * cofflink.c (bfd_coff_link_input_bfd): Check for and warn about
+       references to symbols defined in discarded sections.
+
+2011-05-07  Dave Korn  <dave.korn.cygwin@gmail.com>
+
+       PR ld/12365
        * coffgen.c (coff_write_symbol): Assume input section is its own
        output section if output_section member not set.
        (coff_write_alien_symbol): Likewise.

diff --git a/bfd/cofflink.c b/bfd/cofflink.c
index 33de7fe..fdfab1d 100644 (file)
--- a/bfd/cofflink.c
+++ b/bfd/cofflink.c
@@ -2365,6 +2365,35 @@ _bfd_coff_link_input_bfd (struct coff_final_link_info *finfo, bfd *input_bfd)
          if (internal_relocs == NULL)
            return FALSE;
 
+         /* Run through the relocs looking for relocs against symbols
+            coming from discarded sections and complain about them.  */
+         irel = internal_relocs;
+         for (; irel < &internal_relocs[o->reloc_count]; irel++)
+           {
+             struct coff_link_hash_entry *h;
+             asection *ps = NULL;
+             long symndx = irel->r_symndx;
+             if (symndx < 0)
+               continue;
+             h = obj_coff_sym_hashes (input_bfd)[symndx];
+             if (h == NULL)
+               continue;
+             while (h->root.type == bfd_link_hash_indirect
+                    || h->root.type == bfd_link_hash_warning)
+               h = (struct coff_link_hash_entry *) h->root.u.i.link;
+             if (h->root.type == bfd_link_hash_defined
+                 || h->root.type == bfd_link_hash_defweak)
+               ps = h->root.u.def.section;
+             if (ps == NULL)
+               continue;
+             /* Complain if definition comes from an excluded section.  */
+             if (ps->flags & SEC_EXCLUDE)
+               (*finfo->info->callbacks->einfo)
+                 (_("%X`%s' referenced in section `%A' of %B: "
+                    "defined in discarded section `%A' of %B\n"),
+                  h->root.root.string, o, input_bfd, ps, ps->owner);
+           }
+
          /* Call processor specific code to relocate the section
              contents.  */
          if (! bfd_coff_relocate_section (output_bfd, finfo->info,

diff --git a/ld/ChangeLog b/ld/ChangeLog
index 7368c5c..b2fe365 100644 (file)
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,17 @@
+2011-05-07  Dave Korn  <dave.korn.cygwin@gmail.com>
+
+       PR ld/12365
+       * scripttempl/pe.sc (__rt_psrelocs_start): New symbol definition.
+       (__rt_psrelocs_end): Likewise.
+       (__rt_psrelocs_size): Likewise difference between the above.
+       (__RUNTIME_PSEUDO_RELOC_LIST_END__): Move outside .rdata section
+       immediately after end of pseudo-reloc data.
+       (___RUNTIME_PSEUDO_RELOC_LIST_END___): Likewise.
+       (__RUNTIME_PSEUDO_RELOC_LIST__): Move outside .rdata section and
+       calculate backward from list end.
+       (___RUNTIME_PSEUDO_RELOC_LIST___): Likewise.
+       * scripttempl/pep.sc: Likewise.
+
 2011-05-06  Tristan Gingold  <gingold@adacore.com>
 
        * scripttempl/alphavms.sc (CODE): Add *$CODE*.

diff --git a/ld/scripttempl/pe.sc b/ld/scripttempl/pe.sc
index a82d08c..126c1d4 100644 (file)
--- a/ld/scripttempl/pe.sc
+++ b/ld/scripttempl/pe.sc
@@ -106,12 +106,15 @@ SECTIONS
   .rdata ${RELOCATING+BLOCK(__section_alignment__)} :
   {
     ${R_RDATA}
-    ${RELOCATING+___RUNTIME_PSEUDO_RELOC_LIST__ = .;}
-    ${RELOCATING+__RUNTIME_PSEUDO_RELOC_LIST__ = .;}
+    ${RELOCATING+__rt_psrelocs_start = .;}
     *(.rdata_runtime_pseudo_reloc)
-    ${RELOCATING+___RUNTIME_PSEUDO_RELOC_LIST_END__ = .;}
-    ${RELOCATING+__RUNTIME_PSEUDO_RELOC_LIST_END__ = .;}
+    ${RELOCATING+__rt_psrelocs_end = .;}
   }
+  ${RELOCATING+__rt_psrelocs_size = __rt_psrelocs_end - __rt_psrelocs_start;}
+  ${RELOCATING+___RUNTIME_PSEUDO_RELOC_LIST_END__ = .;}
+  ${RELOCATING+__RUNTIME_PSEUDO_RELOC_LIST_END__ = .;}
+  ${RELOCATING+___RUNTIME_PSEUDO_RELOC_LIST__ = . - __rt_psrelocs_size;}
+  ${RELOCATING+__RUNTIME_PSEUDO_RELOC_LIST__ = . - __rt_psrelocs_size;}
 
   .eh_frame ${RELOCATING+BLOCK(__section_alignment__)} :
   {

diff --git a/ld/scripttempl/pep.sc b/ld/scripttempl/pep.sc
index b8315c5..a3e0cf3 100644 (file)
--- a/ld/scripttempl/pep.sc
+++ b/ld/scripttempl/pep.sc
@@ -107,12 +107,15 @@ SECTIONS
   .rdata ${RELOCATING+BLOCK(__section_alignment__)} :
   {
     ${R_RDATA}
-    ${RELOCATING+___RUNTIME_PSEUDO_RELOC_LIST__ = .;}
-    ${RELOCATING+__RUNTIME_PSEUDO_RELOC_LIST__ = .;}
+    ${RELOCATING+__rt_psrelocs_start = .;}
     *(.rdata_runtime_pseudo_reloc)
-    ${RELOCATING+___RUNTIME_PSEUDO_RELOC_LIST_END__ = .;}
-    ${RELOCATING+__RUNTIME_PSEUDO_RELOC_LIST_END__ = .;}
+    ${RELOCATING+__rt_psrelocs_end = .;}
   }
+  ${RELOCATING+__rt_psrelocs_size = __rt_psrelocs_end - __rt_psrelocs_start;}
+  ${RELOCATING+___RUNTIME_PSEUDO_RELOC_LIST_END__ = .;}
+  ${RELOCATING+__RUNTIME_PSEUDO_RELOC_LIST_END__ = .;}
+  ${RELOCATING+___RUNTIME_PSEUDO_RELOC_LIST__ = . - __rt_psrelocs_size;}
+  ${RELOCATING+__RUNTIME_PSEUDO_RELOC_LIST__ = . - __rt_psrelocs_size;}
 
   .eh_frame ${RELOCATING+BLOCK(__section_alignment__)} :
   {

diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog
index c312749..02581cc 100644 (file)
--- a/ld/testsuite/ChangeLog
+++ b/ld/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2011-05-07  Dave Korn  <dave.korn.cygwin@gmail.com>
+
+       PR ld/12365
+       * ld-plugin/plugin-7.d: Allow underscore in error message.
+       * ld-plugin/plugin-8.d: Likewise.
+
 2011-05-07  H.J. Lu  <hongjiu.lu@intel.com>
 
        PR ld/12730

diff --git a/ld/testsuite/ld-plugin/plugin-7.d b/ld/testsuite/ld-plugin/plugin-7.d
index 04f4139..4d0b9d7 100644 (file)
--- a/ld/testsuite/ld-plugin/plugin-7.d
+++ b/ld/testsuite/ld-plugin/plugin-7.d
@@ -26,6 +26,6 @@ hook called: claim_file tmpdir/func.o \[@0/.* CLAIMED
 hook called: claim_file tmpdir/text.o \[@0/.* not claimed
 #...
 hook called: all symbols read.
-`func' referenced in section `\.text.*' of tmpdir/main.o: defined in discarded section .*
+`_?func' referenced in section `\.text.*' of tmpdir/main.o: defined in discarded section .*
 hook called: cleanup.
 #...

diff --git a/ld/testsuite/ld-plugin/plugin-8.d b/ld/testsuite/ld-plugin/plugin-8.d
index 003537c..a589f01 100644 (file)
--- a/ld/testsuite/ld-plugin/plugin-8.d
+++ b/ld/testsuite/ld-plugin/plugin-8.d
@@ -30,6 +30,6 @@ hook called: claim_file tmpdir/text.o \[@0/.* not claimed
 hook called: all symbols read.
 Sym: '_?func' Resolution: LDPR_PREVAILING_DEF
 Sym: '_?func2' Resolution: LDPR_PREVAILING_DEF_IRONLY
-`func' referenced in section `\.text.*' of tmpdir/main.o: defined in discarded section .*
+`_?func' referenced in section `\.text.*' of tmpdir/main.o: defined in discarded section .*
 hook called: cleanup.
 #...