* mn10300.h (R_MN10300_ALIGN): Define.

* reloc.c (BFD_RELOC_MN10300_ALIGN): Add. * bfd-in2.h: Regenerate. * libbfd.h: Regenerate. * elf-m10300.h: Handle R_MN10300_ALIGN relocs. * mn10300_elf_relax_delete_bytes): Honour R_MN10300_ALIGN relocs. Re-fix off by one error in comparisons. * config/tc-mn10300.c (tc_gen_reloc): Fix test that decides when sym_diff relocs should be generated. (md_apply_fix): Skip R_MN10300_ALIGN relocs. (mn10300_fix_adjustable): Do not adjust R_MN10300_ALIGN relocs. (mn10300_handle_align): New function. Generate R_MN10300_ALIGN relocs to record alignment requests. * config/tc-mn10300.h (TC_FORCE_RELOCATION_SUB_SAME): Also force R_MN10300_ALIGN relocs. (HANDLE_ALIGN): Define. Call mn10300_handle_align. * gas/all/gas.exp: Do not run diff1.s test for mn10300. * ld-mn10300/mn10300.exp: Run new tests. Skip i126256 test if a compiler is not available. * ld-mn10300/i112045-3.s: New test. * ld-mn10300/i112045-3.d: Expected disassembly. * ld-mn10300/i135409.s: Rename to i135409-1.s. * ld-mn10300/i135409.d: Rename to i135409-1.d * ld-mn10300/i135409-2.s: New test. * ld-mn10300/i135409-2.d: Expected symbol table. * ld-mn10300/i36434.d: Adjust expected disassembly.
2025-02-22 02:21:19 +00:00 · 2007-10-30 15:18:29 +00:00 · 2007-10-30 15:18:29 +00:00 · 569006e582
commit 569006e582
parent 4e188d170a
21 changed files with 298 additions and 64 deletions
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@ -1,3 +1,12 @@
+2007-10-30  Nick Clifton  <nickc@redhat.com>
+
+	* reloc.c (BFD_RELOC_MN10300_ALIGN): Add.
+	* bfd-in2.h: Regenerate.
+	* libbfd.h: Regnerate.
+	* elf-m10300.h: Handle R_MN10300_ALIGN relocs.
+	(mn10300_elf_relax_delete_bytes): Honour R_MN10300_ALIGN relocs.
+	Re-fix off by one error in comparisons.
+  
 2007-10-25  Pedro Alves  <pedro_alves@portugalmail.pt>

 	* bfd-in.h (STRING_COMMA_LEN): Don't handle NULL STR case.
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@ -2778,6 +2778,11 @@ allows for a value that is the difference of two symbols
 in the same section.  */
  BFD_RELOC_MN10300_SYM_DIFF,

+/* The addend of this reloc is an alignment power that must
+be honoured at the offset's location, regardless of linker
+relaxation.  */
+  BFD_RELOC_MN10300_ALIGN,
+

 /* i386/elf relocations  */
  BFD_RELOC_386_GOT32,
--- a/bfd/elf-m10300.c
+++ b/bfd/elf-m10300.c
@ -469,6 +469,20 @@ static reloc_howto_type elf_mn10300_howto_table[] =
 	 FALSE,			/* partial_inplace */
 	 0xffffffff,		/* src_mask */
 	 0xffffffff,		/* dst_mask */
+	 FALSE),		/* pcrel_offset */
+
+  HOWTO (R_MN10300_ALIGN,	/* type */
+	 0,			/* rightshift */
+	 0,			/* size (0 = byte, 1 = short, 2 = long) */
+	 32,			/* bitsize */
+	 FALSE,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_dont,/* complain_on_overflow */
+	 NULL, 			/* special handler.  */
+	 "R_MN10300_ALIGN",	/* name */
+	 FALSE,			/* partial_inplace */
+	 0,			/* src_mask */
+	 0,			/* dst_mask */
 	 FALSE)			/* pcrel_offset */
 };

@ -504,7 +518,8 @@ static const struct mn10300_reloc_map mn10300_reloc_map[] =
  { BFD_RELOC_MN10300_GLOB_DAT, R_MN10300_GLOB_DAT },
  { BFD_RELOC_MN10300_JMP_SLOT, R_MN10300_JMP_SLOT },
  { BFD_RELOC_MN10300_RELATIVE, R_MN10300_RELATIVE },
-  { BFD_RELOC_MN10300_SYM_DIFF, R_MN10300_SYM_DIFF }
+  { BFD_RELOC_MN10300_SYM_DIFF, R_MN10300_SYM_DIFF },
+  { BFD_RELOC_MN10300_ALIGN, R_MN10300_ALIGN }
 };

 /* Create the GOT section.  */
@ -1045,6 +1060,7 @@ mn10300_elf_final_link_relocate (reloc_howto_type *howto,
      sym_diff_value = value;
      return bfd_reloc_ok;

+    case R_MN10300_ALIGN:
    case R_MN10300_NONE:
      return bfd_reloc_ok;

@ -1825,19 +1841,54 @@ mn10300_elf_relax_delete_bytes (bfd *abfd,

  contents = elf_section_data (sec)->this_hdr.contents;

-  /* The deletion must stop at the next ALIGN reloc for an aligment
-     power larger than the number of bytes we are deleting.  */
-
  irelalign = NULL;
  toaddr = sec->size;

  irel = elf_section_data (sec)->relocs;
  irelend = irel + sec->reloc_count;

+  /* If there is an align reloc at the end of the section ignore it.
+     GAS creates these relocs for reasons of its own, and they just
+     serve to keep the section artifically inflated.  */
+  if (ELF32_R_TYPE ((irelend - 1)->r_info) == (int) R_MN10300_ALIGN)
+    --irelend;
+      
+  /* The deletion must stop at the next ALIGN reloc for an aligment
+     power larger than the number of bytes we are deleting.  */
+  for (; irel < irelend; irel++)
+    if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_ALIGN
+	&& irel->r_offset > addr
+	&& irel->r_offset < toaddr
+	&& count < (1 << irel->r_addend))
+      {
+	irelalign = irel;
+	toaddr = irel->r_offset;
+	break;
+      }
+
  /* Actually delete the bytes.  */
  memmove (contents + addr, contents + addr + count,
 	   (size_t) (toaddr - addr - count));
-  sec->size -= count;
+
+  /* Adjust the section's size if we are shrinking it, or else
+     pad the bytes between the end of the shrunken region and
+     the start of the next region with NOP codes.  */
+  if (irelalign == NULL)
+    {
+      sec->size -= count;
+      /* Include symbols at the end of the section, but
+	 not at the end of a sub-region of the section.  */
+      toaddr ++;
+    }
+  else
+    {
+      int i;
+
+#define NOP_OPCODE 0xcb
+
+      for (i = 0; i < count; i ++)
+	bfd_put_8 (abfd, (bfd_vma) NOP_OPCODE, contents + toaddr - count + i);
+    }

  /* Adjust all the relocs.  */
  for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
@ -1855,13 +1906,13 @@ mn10300_elf_relax_delete_bytes (bfd *abfd,
    {
      if (isym->st_shndx == sec_shndx
 	  && isym->st_value > addr
-	  && isym->st_value <= toaddr)
+	  && isym->st_value < toaddr)
 	isym->st_value -= count;
      /* Adjust the function symbol's size as well.  */
      else if (isym->st_shndx == sec_shndx
 	       && ELF_ST_TYPE (isym->st_info) == STT_FUNC
 	       && isym->st_value + isym->st_size > addr
-	       && isym->st_value + isym->st_size <= toaddr)
+	       && isym->st_value + isym->st_size < toaddr)
 	isym->st_size -= count;
    }

@ -1878,14 +1929,14 @@ mn10300_elf_relax_delete_bytes (bfd *abfd,
 	   || sym_hash->root.type == bfd_link_hash_defweak)
 	  && sym_hash->root.u.def.section == sec
 	  && sym_hash->root.u.def.value > addr
-	  && sym_hash->root.u.def.value <= toaddr)
+	  && sym_hash->root.u.def.value < toaddr)
 	sym_hash->root.u.def.value -= count;
      /* Adjust the function symbol's size as well.  */
      else if (sym_hash->root.type == bfd_link_hash_defined
 	       && sym_hash->root.u.def.section == sec
 	       && sym_hash->type == STT_FUNC
 	       && sym_hash->root.u.def.value + sym_hash->size > addr
-	       && sym_hash->root.u.def.value + sym_hash->size <= toaddr)
+	       && sym_hash->root.u.def.value + sym_hash->size < toaddr)
 	sym_hash->size -= count;
    }

--- a/bfd/libbfd.h
+++ b/bfd/libbfd.h
@ -1047,6 +1047,7 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@",
  "BFD_RELOC_MN10300_JMP_SLOT",
  "BFD_RELOC_MN10300_RELATIVE",
  "BFD_RELOC_MN10300_SYM_DIFF",
+  "BFD_RELOC_MN10300_ALIGN",

  "BFD_RELOC_386_GOT32",
  "BFD_RELOC_386_PLT32",
--- a/bfd/reloc.c
+++ b/bfd/reloc.c
@ -2367,6 +2367,12 @@ ENUMDOC
  Together with another reloc targeted at the same location,
  allows for a value that is the difference of two symbols
  in the same section.
+ENUM
+  BFD_RELOC_MN10300_ALIGN
+ENUMDOC
+  The addend of this reloc is an alignment power that must
+  be honoured at the offset's location, regardless of linker
+  relaxation.
 COMMENT

 ENUM
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@ -1,3 +1,15 @@
+2007-10-30  Nick Clifton  <nickc@redhat.com>
+
+	* config/tc-mn10300.c (tc_gen_reloc): Fix test that decides when
+	sym_diff relocs should be generated.
+	(md_apply_fix): Skip R_MN10300_ALIGN relocs.
+	(mn10300_fix_adjustable): Do not adjust R_MN10300_ALIGN relocs.
+	(mn10300_handle_align): New function.  Generate R_MN10300_ALIGN
+	relocs to record alignment requests.
+	* config/tc-mn10300.h (TC_FORCE_RELOCATION_SUB_SAME): Also force
+	R_MN10300_ALIGN relocs.
+	(HANDLE_ALIGN): Define.  Call mn10300_handle_align.
+
 2007-10-30  Nick Clifton  <nickc@redhat.com>

 	* doc/as.texinfo (Section): Replace "subsegment" with
--- a/gas/config/tc-mn10300.c
+++ b/gas/config/tc-mn10300.c
@ -2181,13 +2181,18 @@ tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)

  if (fixp->fx_addsy && fixp->fx_subsy)
    {
+      asection *asec, *ssec;
+
+      asec = S_GET_SEGMENT (fixp->fx_addsy);
+      ssec = S_GET_SEGMENT (fixp->fx_subsy);
+
      reloc->sym_ptr_ptr = NULL;

      /* If we have a difference between two (non-absolute) symbols we must
 	 generate two relocs (one for each symbol) and allow the linker to
 	 resolve them - relaxation may change the distances between symbols,
-	 even local symbols defined in the same segment.  */
-      if (S_GET_SEGMENT (fixp->fx_subsy) == seg)
+	 even local symbols defined in the same section.  */
+      if (ssec != absolute_section || asec != absolute_section)
 	{
 	  arelent * reloc2 = xmalloc (sizeof * reloc);

@ -2201,7 +2206,7 @@ tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
 	  *reloc2->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_subsy);

 	  reloc->addend = fixp->fx_offset; 
-	  if (S_GET_SEGMENT (fixp->fx_addsy) == absolute_section)
+	  if (asec == absolute_section)
 	    reloc->addend += S_GET_VALUE (fixp->fx_addsy);

 	  reloc->sym_ptr_ptr = xmalloc (sizeof (asymbol *));
@ -2211,13 +2216,6 @@ tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
 	  fixp->fx_done = 1;
 	  return relocs;
 	}
-
-      if ((S_GET_SEGMENT (fixp->fx_addsy) != S_GET_SEGMENT (fixp->fx_subsy))
-	  || S_GET_SEGMENT (fixp->fx_addsy) == undefined_section)
-	{
-	  as_bad_where (fixp->fx_file, fixp->fx_line,
-			"Difference of symbols in different sections is not supported");
-	}
      else
 	{
 	  char *fixpos = fixp->fx_where + fixp->fx_frag->fr_literal;
@ -2248,12 +2246,12 @@ tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
 		= (asymbol **) bfd_abs_section_ptr->symbol_ptr_ptr;
 	      return relocs;
 	    }
-	}

-      if (reloc->sym_ptr_ptr)
-	free (reloc->sym_ptr_ptr);
-      free (reloc);
-      return & no_relocs;
+	  if (reloc->sym_ptr_ptr)
+	    free (reloc->sym_ptr_ptr);
+	  free (reloc);
+	  return & no_relocs;
+	}
    }
  else
    {
@ -2357,6 +2355,10 @@ md_apply_fix (fixS * fixP, valueT * valP, segT seg)
      fixP->fx_done = 0;
      return;

+    case BFD_RELOC_MN10300_ALIGN:
+      fixP->fx_done = 1;
+      return;
+      
    case BFD_RELOC_NONE:
    default:
      as_bad_where (fixP->fx_file, fixP->fx_line,
@ -2562,3 +2564,29 @@ mn10300_allow_local_subtract (expressionS * left, expressionS * right, segT sect

  return result;
 }
+
+/* When relaxing, we need to output a reloc for any .align directive
+   that requests alignment to a two byte boundary or larger.  */
+
+void
+mn10300_handle_align (fragS *frag)
+{
+  if (! linkrelax)
+    return;
+
+  if ((frag->fr_type == rs_align
+       || frag->fr_type == rs_align_code)
+      && frag->fr_address + frag->fr_fix > 0
+      && frag->fr_offset > 1
+      && now_seg != bss_section
+      /* Do not create relocs for the merging sections - such
+	 relocs will prevent the contents from being merged.  */
+      && (bfd_get_section_flags (now_seg->owner, now_seg) & SEC_MERGE) == 0)
+    /* Create a new fixup to record the alignment request.  The symbol is
+       irrelevent but must be present so we use the absolute section symbol.
+       The offset from the symbol is used to record the power-of-two alignment
+       value.  The size is set to 0 because the frag may already be aligned,
+       thus causing cvt_frag_to_fill to reduce the size of the frag to zero.  */
+    fix_new (frag, frag->fr_fix, 0, & abs_symbol, frag->fr_offset, FALSE,
+	     BFD_RELOC_MN10300_ALIGN);
+}
--- a/gas/config/tc-mn10300.h
+++ b/gas/config/tc-mn10300.h
@ -66,6 +66,7 @@ void mn10300_cons_fix_new PARAMS ((fragS *, int, int, expressionS *));
 #define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEC)	\
  (((SEC)->flags & SEC_CODE) != 0		\
   || ! SEG_NORMAL (SEC)			\
+   || (FIX)->fx_r_type == BFD_RELOC_MN10300_ALIGN \
   || TC_FORCE_RELOCATION (FIX))

 /* We validate subtract arguments within tc_gen_reloc(), so don't
@ -116,3 +117,6 @@ extern bfd_boolean mn10300_allow_local_subtract (expressionS *, expressionS *, s
 #define MAX_RELOC_EXPANSION 2

 #define TC_FRAG_TYPE bfd_boolean
+
+#define HANDLE_ALIGN(frag) mn10300_handle_align (frag)
+extern void mn10300_handle_align (fragS *);
--- a/gas/testsuite/ChangeLog
+++ b/gas/testsuite/ChangeLog
@ -1,3 +1,7 @@
+2007-10-30  Nick Clifton  <nickc@redhat.com>
+
+	* gas/all/gas.exp: Do not run diff1.s test for mn10300.
+
 2007-10-27  H.J. Lu  <hongjiu.lu@intel.com>

 	PR gas/5221
--- a/gas/testsuite/gas/all/gas.exp
+++ b/gas/testsuite/gas/all/gas.exp
@ -34,7 +34,12 @@ if { ![istarget cris-*-*] && ![istarget crisv32-*-*]

 # This test is meaningless for the PA; the difference of two undefined
 # symbols is something that is (and must be) supported on the PA.
-if ![istarget hppa*-*-*] then {
+#
+# The MN10300 port supports link time relaxation which in turn allows
+# for link time resolution of the differneces of two symbols which are
+# undefined at assembly time.  Hence this test will not pass for the
+# MN10300.
+if { ![istarget hppa*-*-*] && ![istarget mn10300-*-*] && ![istarget am3*-*-*] } then {
    gas_test_error "diff1.s" "" "difference of two undefined symbols"
 }

--- a/include/elf/ChangeLog
+++ b/include/elf/ChangeLog
@ -1,3 +1,7 @@
+2007-10-30  Nick Clifton  <nickc@redhat.com>
+
+	* mn10300.h (R_MN10300_ALIGN): Define.
+
 2007-10-25  Daniel Jacobowitz  <dan@codesourcery.com>

 	* ppc.h (Tag_GNU_Power_ABI_Vector): New.
--- a/include/elf/mn10300.h
+++ b/include/elf/mn10300.h
@ -1,23 +1,24 @@
 /* MN10300 ELF support for BFD.
-   Copyright 1998, 1999, 2000, 2003 Free Software Foundation, Inc.
+   Copyright 1998, 1999, 2000, 2003, 2007 Free Software Foundation, Inc.

-This file is part of BFD, the Binary File Descriptor library.
+   This file is part of BFD, the Binary File Descriptor library.

-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.

-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.

-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */

-/* This file holds definitions specific to the MN10300 ELF ABI. */
+/* This file holds definitions specific to the MN10300 ELF ABI.  */

 #ifndef _ELF_MN10300_H
 #define _ELF_MN10300_H
@ -51,17 +52,18 @@ START_RELOC_NUMBERS (elf_mn10300_reloc_type)
  RELOC_NUMBER (R_MN10300_JMP_SLOT, 22)
  RELOC_NUMBER (R_MN10300_RELATIVE, 23)
  RELOC_NUMBER (R_MN10300_SYM_DIFF, 33)
+  RELOC_NUMBER (R_MN10300_ALIGN, 34)
 END_RELOC_NUMBERS (R_MN10300_MAX)

 /* Machine variant if we know it.  This field was invented at Cygnus,
   but it is hoped that other vendors will adopt it.  If some standard
-   is developed, this code should be changed to follow it. */
+   is developed, this code should be changed to follow it.  */

 #define EF_MN10300_MACH		0x00FF0000

 /* Cygnus is choosing values between 80 and 9F;
   00 - 7F should be left for a future standard;
-   the rest are open. */
+   the rest are open.  */

 #define E_MN10300_MACH_MN10300	0x00810000
 #define E_MN10300_MACH_AM33	0x00820000
--- a/ld/testsuite/ChangeLog
+++ b/ld/testsuite/ChangeLog
@ -1,3 +1,15 @@
+2007-10-30  Nick Clifton  <nickc@redhat.com>
+
+	* ld-mn10300/mn10300.exp: Run new tests.  Skip i126256 test if
+	a compiler is not available.
+	* ld-mn10300/i112045-3.s: New test.
+	* ld-mn10300/i112045-3.d: Expected disassembly.
+	* ld-mn10300/i135409.s: Rename to i135409-1.s.
+	* ld-mn10300/i135409.d: Rename to i135409-1.d
+	* ld-mn10300/i135409-2.s: New test.
+	* ld-mn10300/i135409-2.d: Expected symbol table.
+        * ld-mn10300/i36434.d: Adjust expected disassembly.
+
 2007-10-26  Alan Modra  <amodra@bigpond.net.au>

 	* ld-scripts/rgn-over1.d: Accept extra LOAD at end of map file.
--- a/ld/testsuite/ld-mn10300/i112045-3.d
+++ b/ld/testsuite/ld-mn10300/i112045-3.d
@ -0,0 +1,17 @@
+
+tmpdir/i112045-3.x:     file format elf32-.*
+
+Disassembly of section .text:
+
+0+0100 <L001>:
+ 100:[ 	]+24 00 01[ 	]+mov[ 	]+256,a0
+
+0+0103 <L002>:
+ 103:[ 	]+24 00 01[ 	]+mov[ 	]+256,a0
+Disassembly of section .rodata:
+
+0+0106 <L004>:
+ 106:[ 	]+06 00 00[ 	]+movbu[ 	]+d1,\(0 <L001-0x100>\)
+ 109:[ 	]+00[ 	]+clr[ 	]+d0
+ 10a:[ 	]+03 00 00[ 	]+movhu[ 	]+d0,\(0 <L001-0x100>\)
+[ 	]+...
--- a/ld/testsuite/ld-mn10300/i112045-3.s
+++ b/ld/testsuite/ld-mn10300/i112045-3.s
@ -0,0 +1,11 @@
+       .text
+L001:
+        mov     L001,A0
+L002:
+        mov     L001,A0
+L003:
+
+        .section        .rodata
+L004:
+        .long   L003-L001
+        .long   L003-L002
--- a/ld/testsuite/ld-mn10300/i135409-1.d
+++ b/ld/testsuite/ld-mn10300/i135409-1.d
--- a/ld/testsuite/ld-mn10300/i135409-1.s
+++ b/ld/testsuite/ld-mn10300/i135409-1.s
--- a/ld/testsuite/ld-mn10300/i135409-2.d
+++ b/ld/testsuite/ld-mn10300/i135409-2.d
@ -0,0 +1,11 @@
+
+Symbol table '.symtab' contains .. entries:
+   Num:    Value  Size Type    Bind   Vis      Ndx Name
+#...
+    ..: 0[0-9a-f]+02[ 	]+0 NOTYPE  LOCAL  DEFAULT    . _A
+    ..: 0[0-9a-f]+08[ 	]+0 NOTYPE  LOCAL  DEFAULT    . _B
+    ..: 0[0-9a-f]+08[ 	]+0 NOTYPE  LOCAL  DEFAULT    . _C
+    ..: 0[0-9a-f]+10[ 	]+7 FUNC    LOCAL  DEFAULT    . _func
+    ..: 0[0-9a-f]+14[ 	]+0 NOTYPE  LOCAL  DEFAULT    . _D
+    ..: 0[0-9a-f]+17[ 	]+0 NOTYPE  LOCAL  DEFAULT    . BOTTOM
+#pass
--- a/ld/testsuite/ld-mn10300/i135409-2.s
+++ b/ld/testsuite/ld-mn10300/i135409-2.s
@ -0,0 +1,23 @@
+     .text
+      .global _start
+_start:
+      add     A0, A1
+_A:
+      mov     L001, A0
+_B:
+      .balign 0x8
+_C:
+      nop
+      .balign 0x10
+
+       .type   _func, @function
+_func:
+       mov     L001, A1
+       nop
+_D:
+       mov     L001, A1
+BOTTOM:
+       .size   _func, . - _func
+
+      .data
+L001:
--- a/ld/testsuite/ld-mn10300/i36434.d
+++ b/ld/testsuite/ld-mn10300/i36434.d
@ -3,14 +3,14 @@ tmpdir/i36434.x:     file format elf32-.*

 Disassembly of section .text:

-08000000 <_start>:
- 8000000:	fc cd 18 80 	mov	134250520,d1
- 8000004:	00 08 
- 8000006:	cb          	nop	
+08000074 <_start>:
+ 8000074:	fc cd 8c 80 	mov	134250636,d1
+ 8000078:	00 08 
+ 800007a:	cb          	nop	

-08000007 <_bar>:
- 8000007:	fc cc 14 00 	mov	134217748,d0
- 800000b:	00 08 
- 800000d:	fc cd 15 80 	mov	134250517,d1
- 8000011:	00 08 
- 8000013:	cb          	nop	
+0800007b <_bar>:
+ 800007b:	fc cc 88 00 	mov	134217864,d0
+ 800007f:	00 08 
+ 8000081:	fc cd 89 80 	mov	134250633,d1
+ 8000085:	00 08 
+ 8000087:	cb          	nop	
--- a/ld/testsuite/ld-mn10300/mn10300.exp
+++ b/ld/testsuite/ld-mn10300/mn10300.exp
@ -22,17 +22,17 @@ if {!([istarget "am3*-*-*"]) && !([istarget "mn10300*-*-*"]) } {

 # Set up a list as described in ld-lib.exp

-set am33_tests {
+set mn10300_tests {
    {
 	"am33 string merging"
-	"--relax -Ttext 0x8000000"
+	"-relax -Ttext 0x8000074"
 	""
 	{ "i36434.s" "i36434-2.s" }
 	{ {objdump -dz i36434.d} }
 	"i36434.x"
    }
    {
-	"difference of two symbols"
+	"difference of two same-section symbols"
 	"-Ttext 0"
 	""
 	{ "i112045-1.s" }
@ -40,21 +40,46 @@ set am33_tests {
 	"i112045-1.x"
    }
    {
-	"(shared) difference of two symbols"
+	"difference of two same-section symbols where the difference is held in another section"
+	"-relax -Ttext 100"
+	""
+	{ "i112045-3.s" }
+	{ {objdump -D i112045-3.d} }
+	"i112045-3.x"
+    }
+    {
+	"adjustment of symbols due to relaxation"
+	"-Tdata 1f -Ttext 0 -relax"
+	""
+	{ "i135409-1.s" }
+	{ {readelf --syms i135409-1.d} }
+	"i135409-1.x"
+    }
+    {
+	"adjustment of symbols due to relaxation (with alignment directives)"
+	"-Tdata 1f -Ttext 0 -relax"
+	""
+	{ "i135409-2.s" }
+	{ {readelf --syms i135409-2.d} }
+	"i135409-2.x"
+    }
+}
+
+run_ld_link_tests $mn10300_tests
+
+if {!([istarget "am3*-*-*"])} {
+    return
+}
+
+set am33_tests {
+    {
+	"difference of two same-section symbols (in a shared library)"
 	"-shared"
 	""
 	{ "i112045-2.s" }
 	{ {objdump -R i112045-2.d} }
 	"i112045-2.x"
    }
-    {
-	"adjustment of symbols due to relaxation"
-	"-Tdata 1f -relax"
-	""
-	{ "i135409.s" }
-	{ {readelf --syms i135409.d } }
-	"i135409.x"
-    }
 }

 run_ld_link_tests $am33_tests
@ -66,7 +91,11 @@ proc i126256-test { } {
    global subdir

    set tmpdir tmpdir
-    set testname "Issue 126256 - seg fault whilst linking one shared library into another when relaxation is enabled."
+    set testname "Seg fault whilst linking one shared library into another when relaxation is enabled."
+
+    if {![is_remote host] && [which $CC] == 0} then {
+	return
+    }

    if { ![ld_compile "$CC -mrelax -fPIC" $srcdir/$subdir/i126256-1.c $tmpdir/i126256-1.o] } {
 	unresolved $testname