Add support for non-contiguous memory regions

2020-01-06  Christophe Lyon  <christophe.lyon@linaro.org>

	bfd/
	* bfd-in2.h: Regenerate.
	* section.c (asection): Add already_assigned field.
	(BFD_FAKE_SECTION): Add default initializer for it.
	* ecoff.c (bfd_debug_section): Initialize already_assigned field.
	* elf32-arm.c (arm_build_one_stub): Add support for
	non_contiguous_regions.
	* elf32-csky.c (csky_build_one_stub): Likewise.
	* elf32-hppa.c (hppa_build_one_stub): Likewise.
	* elf32-m68hc11.c (m68hc11_elf_build_one_stub): Likewise.
	* elf32-m68hc12.c (m68hc12_elf_build_one_stub): Likewise.
	* elf32-metag.c (metag_build_one_stub): Likewise.
	* elf32-nios2.c (nios2_build_one_stub): Likewise.
	* elf64-ppc.c (ppc_build_one_stub): Likewise.
	(ppc_size_one_stub): Likewise.
	* elfnn-aarch64.c (aarch64_build_one_stub): Likewise.
	* elflink.c (elf_link_input_bfd): Likewise.

	include/
	* bfdlink.h (bfd_link_info): Add non_contiguous_regions and
	non_contiguous_regions_warnings fields.

	ld/
	* ldlang.c (lang_add_section): Add support for
	non_contiguous_regions.
	(size_input_section): Likewise.
	(lang_size_sections_1): Likewise.
	(process_insert_statements): Likewise.
	* ldlex.h (option_values): Add OPTION_NON_CONTIGUOUS_REGIONS and
	OPTION_NON_CONTIGUOUS_REGIONS_WARNINGS.
	* lexsup.c (ld_options): Add entries for
	--enable-non-contiguous-regions and
	--enable-non-contiguous-regions-warnings.
	(parse_args): Handle it.
	* NEWS: Add --enable-non-contiguous-regions and
	--enable-non-contiguous-regions-warnings.
	* ld.texi: Add --enable-non-contiguous-regions and
	--enable-non-contiguous-regions-warnings documentation.
	* emultempl/armelf.em (elf32_arm_add_stub_section): Add
	SEC_LINKER_CREATED flag.
	* emultempl/xtensaelf.em (ld_build_required_section_dependence):
	Emit an error when --enable-non-contiguous-regions is used.
	* testsuite/ld-elf/non-contiguous.d: New.
	* testsuite/ld-elf/non-contiguous.ld: New.
	* testsuite/ld-elf/non-contiguous.s: New.
	* testsuite/ld-arm/arm-elf.exp: Run the new tests.
	* testsuite/ld-arm/arm-elf/non-contiguous-arm.s: New.
	* testsuite/ld-arm/arm-elf/non-contiguous-arm.d: New.
	* testsuite/ld-arm/arm-elf/non-contiguous-arm.ld: New.
	* testsuite/ld-arm/arm-elf/non-contiguous-arm2.d: New.
	* testsuite/ld-arm/arm-elf/non-contiguous-arm3.ld: New.
	* testsuite/ld-arm/arm-elf/non-contiguous-arm3.d: New.
	* testsuite/ld-arm/arm-elf/non-contiguous-arm3.ld: New.
	* testsuite/ld-arm/arm-elf/non-contiguous-arm4.d: New.
	* testsuite/ld-arm/arm-elf/non-contiguous-arm4.ld: New.
	* testsuite/ld-arm/arm-elf/non-contiguous-arm5.d: New.
	* testsuite/ld-arm/arm-elf/non-contiguous-arm5.ld: New.
	* testsuite/ld-arm/arm-elf/non-contiguous-arm6.d: New.
	* testsuite/ld-arm/arm-elf/non-contiguous-arm6.ld: New.
	* testsuite/ld-powerpc/powerpc.exp: Run new tests.
	* testsuite/ld-powerpc/non-contiguous-powerpc.d: New.
	* testsuite/ld-powerpc/non-contiguous-powerpc.ld: New.
	* testsuite/ld-powerpc/non-contiguous-powerpc.sd: New.
	* testsuite/ld-powerpc/non-contiguous-powerpc64.d: New.

30 files changed, 955 insertions, 5 deletions

diff --git a/ld/ChangeLog b/ld/ChangeLog
index 74d2f1b..e7b4346 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,47 @@
+2020-03-13  Christophe Lyon  <christophe.lyon@linaro.org>
+
+	* ldlang.c (lang_add_section): Add support for
+	non_contiguous_regions.
+	(size_input_section): Likewise.
+	(lang_size_sections_1): Likewise.
+	(process_insert_statements): Likewise.
+	* ldlex.h (option_values): Add OPTION_NON_CONTIGUOUS_REGIONS and
+	OPTION_NON_CONTIGUOUS_REGIONS_WARNINGS.
+	* lexsup.c (ld_options): Add entries for
+	--enable-non-contiguous-regions and
+	--enable-non-contiguous-regions-warnings.
+	(parse_args): Handle it.
+	* NEWS: Add --enable-non-contiguous-regions and
+	--enable-non-contiguous-regions-warnings.
+	* ld.texi: Add --enable-non-contiguous-regions and
+	--enable-non-contiguous-regions-warnings documentation.
+	* emultempl/armelf.em (elf32_arm_add_stub_section): Add
+	SEC_LINKER_CREATED flag.
+	* emultempl/xtensaelf.em (ld_build_required_section_dependence):
+	Emit an error when --enable-non-contiguous-regions is used.
+	* testsuite/ld-elf/non-contiguous.d: New.
+	* testsuite/ld-elf/non-contiguous.ld: New.
+	* testsuite/ld-elf/non-contiguous.s: New.
+	* testsuite/ld-arm/arm-elf.exp: Run the new tests.
+	* testsuite/ld-arm/arm-elf/non-contiguous-arm.s: New.
+	* testsuite/ld-arm/arm-elf/non-contiguous-arm.d: New.
+	* testsuite/ld-arm/arm-elf/non-contiguous-arm.ld: New.
+	* testsuite/ld-arm/arm-elf/non-contiguous-arm2.d: New.
+	* testsuite/ld-arm/arm-elf/non-contiguous-arm3.ld: New.
+	* testsuite/ld-arm/arm-elf/non-contiguous-arm3.d: New.
+	* testsuite/ld-arm/arm-elf/non-contiguous-arm3.ld: New.
+	* testsuite/ld-arm/arm-elf/non-contiguous-arm4.d: New.
+	* testsuite/ld-arm/arm-elf/non-contiguous-arm4.ld: New.
+	* testsuite/ld-arm/arm-elf/non-contiguous-arm5.d: New.
+	* testsuite/ld-arm/arm-elf/non-contiguous-arm5.ld: New.
+	* testsuite/ld-arm/arm-elf/non-contiguous-arm6.d: New.
+	* testsuite/ld-arm/arm-elf/non-contiguous-arm6.ld: New.
+	* testsuite/ld-powerpc/powerpc.exp: Run new tests.
+	* testsuite/ld-powerpc/non-contiguous-powerpc.d: New.
+	* testsuite/ld-powerpc/non-contiguous-powerpc.ld: New.
+	* testsuite/ld-powerpc/non-contiguous-powerpc.sd: New.
+	* testsuite/ld-powerpc/non-contiguous-powerpc64.d: New.
+
 2020-03-13  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR ld/24920
diff --git a/ld/NEWS b/ld/NEWS
index 7734d23..563af67 100644
--- a/ld/NEWS
+++ b/ld/NEWS
@@ -1,5 +1,8 @@
 -*- text -*-
 
+* Add command-line options --enable-non-contiguous-regions and
+  --enable-non-contiguous-regions-warnings.
+
 Changes in 2.34:
 
 * The ld check for "PHDR segment not covered by LOAD segment" is more
diff --git a/ld/emultempl/armelf.em b/ld/emultempl/armelf.em
index efdcf5a..fb5bbf8 100644
--- a/ld/emultempl/armelf.em
+++ b/ld/emultempl/armelf.em
@@ -227,7 +227,8 @@ elf32_arm_add_stub_section (const char * stub_sec_name,
   struct hook_stub_info info;
 
   flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE
-	   | SEC_HAS_CONTENTS | SEC_RELOC | SEC_IN_MEMORY | SEC_KEEP);
+	   | SEC_HAS_CONTENTS | SEC_RELOC | SEC_IN_MEMORY | SEC_KEEP
+	   | SEC_LINKER_CREATED);
   stub_sec = bfd_make_section_anyway_with_flags (stub_file->the_bfd,
 						 stub_sec_name, flags);
   if (stub_sec == NULL)
diff --git a/ld/emultempl/xtensaelf.em b/ld/emultempl/xtensaelf.em
index 1aca7b7..74bd11c 100644
--- a/ld/emultempl/xtensaelf.em
+++ b/ld/emultempl/xtensaelf.em
@@ -1224,6 +1224,12 @@ ld_build_required_section_dependence (lang_statement_union_type *s)
     {
       lang_statement_union_type *l = iter_stack_current (&stack);
 
+      if (l == NULL && link_info.non_contiguous_regions)
+	{
+	  einfo (_("Relaxation not supported with --enable-non-contiguous-regions.\n"));
+	  abort();
+	}
+
       if (l->header.type == lang_input_section_enum)
 	{
 	  lang_input_section_type *input;
diff --git a/ld/ld.texi b/ld/ld.texi
index 27343c7..9f56293 100644
--- a/ld/ld.texi
+++ b/ld/ld.texi
@@ -459,6 +459,48 @@ will contain a colon separated list of audit interfaces to use.  This
 option is only meaningful on ELF platforms supporting the rtld-audit interface.
 The -P option is provided for Solaris compatibility.
 
+@kindex --enable-non-contiguous-regions
+@item --enable-non-contiguous-regions
+This option avoids generating an error if an input section does not
+fit a matching output section. The linker tries to allocate the input
+section to subseque nt matching output sections, and generates an
+error only if no output section is large enough.  This is useful when
+several non-contiguous memory regions are available and the input
+section does not require a particular one.  The order in which input
+sections are evaluated does not change, for instance:
+
+@smallexample
+  MEMORY @{
+    MEM1 (rwx) : ORIGIN : 0x1000, LENGTH = 0x14
+    MEM2 (rwx) : ORIGIN : 0x1000, LENGTH = 0x40
+    MEM3 (rwx) : ORIGIN : 0x2000, LENGTH = 0x40
+  @}
+  SECTIONS @{
+    mem1 : @{ *(.data.*); @} > MEM1
+    mem2 : @{ *(.data.*); @} > MEM2
+    mem3 : @{ *(.data.*); @} > MEM2
+  @}
+
+  with input sections:
+  .data.1: size 8
+  .data.2: size 0x10
+  .data.3: size 4
+
+  results in .data.1 affected to mem1, and .data.2 and .data.3
+  affected to mem2, even though .data.3 would fit in mem3.
+@end smallexample
+
+This option is incompatible with INSERT statements because it changes
+the way input sections are mapped to output sections.
+
+@kindex --enable-non-contiguous-regions-warnings
+@item --enable-non-contiguous-regions-warnings
+This option enables warnings when
+@code{--enable-non-contiguous-regions} allows possibly unexpected
+matches in sections mapping, potentially leading to silently
+discarding a section instead of failing because it does not fit any
+output region.
+
 @cindex entry point, from command line
 @kindex -e @var{entry}
 @kindex --entry=@var{entry}
diff --git a/ld/ldlang.c b/ld/ldlang.c
index 63f9d18..8e56e86 100644
--- a/ld/ldlang.c
+++ b/ld/ldlang.c
@@ -2540,6 +2540,11 @@ lang_add_section (lang_statement_list_type *ptr,
 	  /* This prevents future calls from assigning this section.  */
 	  section->output_section = bfd_abs_section_ptr;
 	}
+      else if (link_info.non_contiguous_regions_warnings)
+	einfo (_("%P:%pS: warning: --enable-non-contiguous-regions makes "
+		 "section `%pA' from '%pB' match /DISCARD/ clause.\n"),
+	       NULL, section, section->owner);
+
       return;
     }
 
@@ -2553,7 +2558,33 @@ lang_add_section (lang_statement_list_type *ptr,
     }
 
   if (section->output_section != NULL)
-    return;
+    {
+      if (!link_info.non_contiguous_regions)
+	return;
+
+      /* SECTION has already been handled in a special way
+	 (eg. LINK_ONCE): skip it.  */
+      if (bfd_is_abs_section (section->output_section))
+	return;
+
+      /* Already assigned to the same output section, do not process
+	 it again, to avoid creating loops between duplicate sections
+	 later.  */
+      if (section->output_section == output->bfd_section)
+	return;
+
+      if (link_info.non_contiguous_regions_warnings && output->bfd_section)
+	einfo (_("%P:%pS: warning: --enable-non-contiguous-regions may "
+		 "change behaviour for section `%pA' from '%pB' (assigned to "
+		 "%pA, but additional match: %pA)\n"),
+	       NULL, section, section->owner, section->output_section,
+	       output->bfd_section);
+
+      /* SECTION has already been assigned to an output section, but
+	 the user allows it to be mapped to another one in case it
+	 overflows. We'll later update the actual output section in
+	 size_input_section as appropriate.  */
+    }
 
   /* We don't copy the SEC_NEVER_LOAD flag from an input section
      to an output section, because we want to be able to include a
@@ -4197,6 +4228,12 @@ process_insert_statements (lang_statement_union_type **start)
 	  lang_statement_union_type **ptr;
 	  lang_statement_union_type *first;
 
+	  if (link_info.non_contiguous_regions)
+	    {
+	      einfo (_("warning: INSERT statement in linker script is "
+		       "incompatible with --enable-non-contiguous-regions.\n"));
+	    }
+
 	  where = lang_output_section_find (i->where);
 	  if (where != NULL && i->is_before)
 	    {
@@ -5119,11 +5156,27 @@ size_input_section
   (lang_statement_union_type **this_ptr,
    lang_output_section_statement_type *output_section_statement,
    fill_type *fill,
+   bfd_boolean *removed,
    bfd_vma dot)
 {
   lang_input_section_type *is = &((*this_ptr)->input_section);
   asection *i = is->section;
   asection *o = output_section_statement->bfd_section;
+  *removed = 0;
+
+  if (link_info.non_contiguous_regions)
+    {
+      /* If the input section I has already been successfully assigned
+	 to an output section other than O, don't bother with it and
+	 let the caller remove it from the list.  Keep processing in
+	 case we have already handled O, because the repeated passes
+	 have reinitialized its size.  */
+      if (i->already_assigned && i->already_assigned != o)
+	{
+	  *removed = 1;
+	  return dot;
+	}
+    }
 
   if (i->sec_info_type == SEC_INFO_TYPE_JUST_SYMS)
     i->output_offset = i->vma - o->vma;
@@ -5155,6 +5208,42 @@ size_input_section
 	  dot += alignment_needed;
 	}
 
+      if (link_info.non_contiguous_regions)
+	{
+	  /* If I would overflow O, let the caller remove I from the
+	     list.  */
+	  if (output_section_statement->region)
+	    {
+	      bfd_vma end = output_section_statement->region->origin
+		+ output_section_statement->region->length;
+
+	      if (dot + TO_ADDR (i->size) > end)
+		{
+		  if (i->flags & SEC_LINKER_CREATED)
+		    {
+		      einfo (_("Output section '%s' not large enough for the "
+			       "linker-created stubs section '%s'.\n"),
+			     i->output_section->name, i->name);
+		      abort();
+		    }
+
+		  if (i->rawsize && i->rawsize != i->size)
+		    {
+		      einfo (_("Relaxation not supported with "
+			       "--enable-non-contiguous-regions (section '%s' "
+			       "would overflow '%s' after it changed size).\n"),
+			     i->name, i->output_section->name);
+		      abort();
+		    }
+
+		  *removed = 1;
+		  dot = end;
+		  i->output_section = NULL;
+		  return dot;
+		}
+	    }
+	}
+
       /* Remember where in the output section this input section goes.  */
       i->output_offset = dot - o->vma;
 
@@ -5162,6 +5251,14 @@ size_input_section
       dot += TO_ADDR (i->size);
       if (!(o->flags & SEC_FIXED_SIZE))
 	o->size = TO_SIZE (dot - o->vma);
+
+      if (link_info.non_contiguous_regions)
+	{
+	  /* Record that I was successfully assigned to O, and update
+	     its actual output section too.  */
+	  i->already_assigned = o;
+	  i->output_section = o;
+	}
     }
 
   return dot;
@@ -5448,10 +5545,14 @@ lang_size_sections_1
    bfd_boolean check_regions)
 {
   lang_statement_union_type *s;
+  lang_statement_union_type *prev_s = NULL;
+  bfd_boolean removed_prev_s = FALSE;
 
   /* Size up the sections from their constituent parts.  */
-  for (s = *prev; s != NULL; s = s->header.next)
+  for (s = *prev; s != NULL; prev_s = s, s = s->header.next)
     {
+      bfd_boolean removed=FALSE;
+
       switch (s->header.type)
 	{
 	case lang_output_section_statement_enum:
@@ -5885,7 +5986,7 @@ lang_size_sections_1
 		  *relax = TRUE;
 	      }
 	    dot = size_input_section (prev, output_section_statement,
-				      fill, dot);
+				      fill, &removed, dot);
 	  }
 	  break;
 
@@ -5990,7 +6091,43 @@ lang_size_sections_1
 	  FAIL ();
 	  break;
 	}
-      prev = &s->header.next;
+
+      /* If an input section doesn't fit in the current output
+	 section, remove it from the list.  Handle the case where we
+	 have to remove an input_section statement here: there is a
+	 special case to remove the first element of the list.  */
+      if (link_info.non_contiguous_regions && removed)
+	{
+	  /* If we removed the first element during the previous
+	     iteration, override the loop assignment of prev_s.  */
+	  if (removed_prev_s)
+	      prev_s = NULL;
+
+	  if (prev_s)
+	    {
+	      /* If there was a real previous input section, just skip
+		 the current one.  */
+	      prev_s->header.next=s->header.next;
+	      s = prev_s;
+	      removed_prev_s = FALSE;
+	    }
+	  else
+	    {
+	      /* Remove the first input section of the list.  */
+	      *prev = s->header.next;
+	      removed_prev_s = TRUE;
+	    }
+
+	  /* Move to next element, unless we removed the head of the
+	     list.  */
+	  if (!removed_prev_s)
+	    prev = &s->header.next;
+	}
+      else
+	{
+	  prev = &s->header.next;
+	  removed_prev_s = FALSE;
+	}
     }
   return dot;
 }
diff --git a/ld/ldlex.h b/ld/ldlex.h
index 5287f19..22b928d 100644
--- a/ld/ldlex.h
+++ b/ld/ldlex.h
@@ -150,6 +150,8 @@ enum option_values
   OPTION_FORCE_GROUP_ALLOCATION,
   OPTION_PRINT_MAP_DISCARDED,
   OPTION_NO_PRINT_MAP_DISCARDED,
+  OPTION_NON_CONTIGUOUS_REGIONS,
+  OPTION_NON_CONTIGUOUS_REGIONS_WARNINGS,
 };
 
 /* The initial parser states.  */
diff --git a/ld/lexsup.c b/ld/lexsup.c
index 3d15cc4..2597e2d 100644
--- a/ld/lexsup.c
+++ b/ld/lexsup.c
@@ -122,6 +122,10 @@ static const struct ld_option ld_options[] =
     'E', NULL, N_("Export all dynamic symbols"), TWO_DASHES },
   { {"no-export-dynamic", no_argument, NULL, OPTION_NO_EXPORT_DYNAMIC},
     '\0', NULL, N_("Undo the effect of --export-dynamic"), TWO_DASHES },
+  { {"enable-non-contiguous-regions", no_argument, NULL, OPTION_NON_CONTIGUOUS_REGIONS},
+    '\0', NULL, N_("Enable support of non-contiguous memory regions"), TWO_DASHES },
+  { {"enable-non-contiguous-regions-warnings", no_argument, NULL, OPTION_NON_CONTIGUOUS_REGIONS_WARNINGS},
+    '\0', NULL, N_("Enable warnings when --enable-non-contiguous-regions may cause unexpected behaviour"), TWO_DASHES },
   { {"EB", no_argument, NULL, OPTION_EB},
     '\0', NULL, N_("Link big-endian objects"), ONE_DASH },
   { {"EL", no_argument, NULL, OPTION_EL},
@@ -845,6 +849,12 @@ parse_args (unsigned argc, char **argv)
 	case OPTION_NO_EXPORT_DYNAMIC:
 	  link_info.export_dynamic = FALSE;
 	  break;
+	case OPTION_NON_CONTIGUOUS_REGIONS:
+	  link_info.non_contiguous_regions = TRUE;
+	  break;
+	case OPTION_NON_CONTIGUOUS_REGIONS_WARNINGS:
+	  link_info.non_contiguous_regions_warnings = TRUE;
+	  break;
 	case 'e':
 	  lang_add_entry (optarg, TRUE);
 	  break;
diff --git a/ld/testsuite/ld-arm/arm-elf.exp b/ld/testsuite/ld-arm/arm-elf.exp
index 44e599f..18177d1 100644
--- a/ld/testsuite/ld-arm/arm-elf.exp
+++ b/ld/testsuite/ld-arm/arm-elf.exp
@@ -1261,3 +1261,10 @@ set arm_unwind_tests {
      "unwind-mix"}
 }
 run_ld_link_tests $arm_unwind_tests
+
+run_dump_test "non-contiguous-arm"
+run_dump_test "non-contiguous-arm2"
+run_dump_test "non-contiguous-arm3"
+run_dump_test "non-contiguous-arm4"
+run_dump_test "non-contiguous-arm5"
+run_dump_test "non-contiguous-arm6"
diff --git a/ld/testsuite/ld-arm/non-contiguous-arm.d b/ld/testsuite/ld-arm/non-contiguous-arm.d
new file mode 100644
index 0000000..d0e5fab
--- /dev/null
+++ b/ld/testsuite/ld-arm/non-contiguous-arm.d
@@ -0,0 +1,4 @@
+#name: non-contiguous-arm
+#source: non-contiguous-arm.s
+#ld: --enable-non-contiguous-regions -T non-contiguous-arm.ld
+# error: \A.*Could not assign '.code.4' to an output section. Retry without --enable-non-contiguous-regions.*\Z
diff --git a/ld/testsuite/ld-arm/non-contiguous-arm.ld b/ld/testsuite/ld-arm/non-contiguous-arm.ld
new file mode 100644
index 0000000..a50621b
--- /dev/null
+++ b/ld/testsuite/ld-arm/non-contiguous-arm.ld
@@ -0,0 +1,34 @@
+/*
+ sections .code.1 and .code.2 fit in .raml
+ section .code.3 fits in .ramu
+ section .code.4 too large to fit
+ expect an error about .code.4
+*/
+MEMORY
+{
+  RAML (rwx) : ORIGIN = 0x1FFF0000, LENGTH = 0x0001c
+  RAMU (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00040
+  RAMZ (rwx) : ORIGIN = 0x20040000, LENGTH = 0x00040
+}
+
+SECTIONS
+{
+   .raml :
+   {  _raml_start = . ;
+      *(.boot) ;
+      *(.code) *(.code.*) ;
+      _raml_end = . ;
+   } > RAML
+
+   .ramu : AT ( ADDR (.raml) + SIZEOF (.raml) )
+   {  _ramu_start = . ;
+      *(.code) *(.code.*) ;
+      _ramu_end = . ;
+   } > RAMU
+
+   .ramz : AT ( ADDR (.ramu) + SIZEOF (.ramu) )
+   {  _ramz_start = . ;
+      *(.code) *(.code.*) ;
+     _ramz_end = . ;
+   } > RAMZ
+}
diff --git a/ld/testsuite/ld-arm/non-contiguous-arm.s b/ld/testsuite/ld-arm/non-contiguous-arm.s
new file mode 100644
index 0000000..cdc8b00
--- /dev/null
+++ b/ld/testsuite/ld-arm/non-contiguous-arm.s
@@ -0,0 +1,35 @@
+	.syntax unified
+	.section .code.1, "ax", %progbits
+	.arm
+	# Fit in RAML
+	.global code1
+	.type code1, %function
+code1:
+	nop
+	nop
+	bl code2
+
+	.section .code.2, "ax", %progbits
+	# Fit in RAML
+	.global code2
+	.type code2, %function
+code2:
+	nop
+	nop
+	bl code3
+
+	.section .code.3, "ax", %progbits
+	# Fit in RAMU
+	.global code3
+	.type code3, %function
+code3:
+	nop
+	bl code4
+
+	.section .code.4, "ax", %progbits
+	# Fit in RAMZ
+	.global code4
+	.type code4, %function
+code4:
+$a:
+	.fill 20, 4, 0xe1a00000
diff --git a/ld/testsuite/ld-arm/non-contiguous-arm2.d b/ld/testsuite/ld-arm/non-contiguous-arm2.d
new file mode 100644
index 0000000..af40e84
--- /dev/null
+++ b/ld/testsuite/ld-arm/non-contiguous-arm2.d
@@ -0,0 +1,77 @@
+#name: non-contiguous-arm2
+#source: non-contiguous-arm.s
+#ld: --enable-non-contiguous-regions -T non-contiguous-arm2.ld
+#objdump: -rdth
+#xfail: [is_generic]
+
+.*:     file format elf32-(little|big)arm.*
+
+Sections:
+Idx Name          Size      VMA       LMA       File off  Algn
+  0 \.raml         00000018  1fff0000  1fff0000  00010000  2\*\*2
+                  CONTENTS, ALLOC, LOAD, READONLY, CODE
+  1 \.ramu         00000008  20000000  1fff0018  00020000  2\*\*2
+                  CONTENTS, ALLOC, LOAD, READONLY, CODE
+  2 \.ramz         00000050  20040000  20000008  00030000  2\*\*2
+                  CONTENTS, ALLOC, LOAD, READONLY, CODE
+  3 .ARM.attributes 00000012  00000000  00000000  .*  2\*\*0
+                  CONTENTS, READONLY
+SYMBOL TABLE:
+1fff0000 l    d  .raml	00000000 .raml
+20000000 l    d  .ramu	00000000 .ramu
+20040000 l    d  .ramz	00000000 .ramz
+00000000 l    d  .ARM.attributes	00000000 .ARM.attributes
+00000000 l    df \*ABS\*	00000000 .*/non-contiguous-arm.o
+1fff0018 g       .raml	00000000 _raml_end
+20000000 g       .ramu	00000000 _ramu_start
+1fff000c g     F .raml	00000000 code2
+20040000 g       .ramz	00000000 _ramz_start
+1fff0000 g       .raml	00000000 _raml_start
+20000000 g     F .ramu	00000000 code3
+1fff0000 g     F .raml	00000000 code1
+20040050 g       .ramz	00000000 _ramz_end
+20040000 g     F .ramz	00000000 code4
+20000008 g       .ramu	00000000 _ramu_end
+
+
+Disassembly of section .raml:
+
+1fff0000 \<code1\>:
+1fff0000:	e1a00000 	nop			; \(mov r0, r0\)
+1fff0004:	e1a00000 	nop			; \(mov r0, r0\)
+1fff0008:	ebffffff 	bl	1fff000c \<code2\>
+
+1fff000c \<code2\>:
+1fff000c:	e1a00000 	nop			; \(mov r0, r0\)
+1fff0010:	e1a00000 	nop			; \(mov r0, r0\)
+1fff0014:	eb003ff9 	bl	20000000 \<code3\>
+
+Disassembly of section .ramu:
+
+20000000 \<code3\>:
+20000000:	e1a00000 	nop			; \(mov r0, r0\)
+20000004:	eb00fffd 	bl	20040000 \<code4\>
+
+Disassembly of section .ramz:
+
+20040000 \<code4\>:
+20040000:	e1a00000 	.word	0xe1a00000
+20040004:	e1a00000 	.word	0xe1a00000
+20040008:	e1a00000 	.word	0xe1a00000
+2004000c:	e1a00000 	.word	0xe1a00000
+20040010:	e1a00000 	.word	0xe1a00000
+20040014:	e1a00000 	.word	0xe1a00000
+20040018:	e1a00000 	.word	0xe1a00000
+2004001c:	e1a00000 	.word	0xe1a00000
+20040020:	e1a00000 	.word	0xe1a00000
+20040024:	e1a00000 	.word	0xe1a00000
+20040028:	e1a00000 	.word	0xe1a00000
+2004002c:	e1a00000 	.word	0xe1a00000
+20040030:	e1a00000 	.word	0xe1a00000
+20040034:	e1a00000 	.word	0xe1a00000
+20040038:	e1a00000 	.word	0xe1a00000
+2004003c:	e1a00000 	.word	0xe1a00000
+20040040:	e1a00000 	.word	0xe1a00000
+20040044:	e1a00000 	.word	0xe1a00000
+20040048:	e1a00000 	.word	0xe1a00000
+2004004c:	e1a00000 	.word	0xe1a00000
diff --git a/ld/testsuite/ld-arm/non-contiguous-arm2.ld b/ld/testsuite/ld-arm/non-contiguous-arm2.ld
new file mode 100644
index 0000000..f13567e
--- /dev/null
+++ b/ld/testsuite/ld-arm/non-contiguous-arm2.ld
@@ -0,0 +1,33 @@
+/*
+ sections .code.1 and .code.2 fit in .raml
+ section .code.3 fits in .ramu and does not need a farcall stub to jump to code4
+ section .code.4 fits in .ramz
+*/
+MEMORY
+{
+  RAML (rwx) : ORIGIN = 0x1FFF0000, LENGTH = 0x0001c
+  RAMU (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00008
+  RAMZ (rwx) : ORIGIN = 0x20040000, LENGTH = 0x00400
+}
+
+SECTIONS
+{
+   .raml :
+   {  _raml_start = . ;
+      *(.boot) ;
+      *(.code) *(.code.*) ;
+      _raml_end = . ;
+   } > RAML
+
+   .ramu : AT ( ADDR (.raml) + SIZEOF (.raml) )
+   {  _ramu_start = . ;
+      *(.code) *(.code.*) ;
+      _ramu_end = . ;
+   } > RAMU
+
+   .ramz : AT ( ADDR (.ramu) + SIZEOF (.ramu) )
+   {  _ramz_start = . ;
+      *(.code) *(.code.*) ;
+     _ramz_end = . ;
+   } > RAMZ
+}
diff --git a/ld/testsuite/ld-arm/non-contiguous-arm3.d b/ld/testsuite/ld-arm/non-contiguous-arm3.d
new file mode 100644
index 0000000..6373922
--- /dev/null
+++ b/ld/testsuite/ld-arm/non-contiguous-arm3.d
@@ -0,0 +1,83 @@
+#name: non-contiguous-arm3
+#source: non-contiguous-arm.s
+#ld: --enable-non-contiguous-regions -T non-contiguous-arm3.ld
+#objdump: -rdth
+#xfail: [is_generic]
+#skip: arm*nacl
+
+.*:     file format elf32-(little|big)arm
+
+Sections:
+Idx Name          Size      VMA       LMA       File off  Algn
+  0 \.raml         00000018  1fff0000  1fff0000  00010000  2\*\*2
+                  CONTENTS, ALLOC, LOAD, READONLY, CODE
+  1 \.ramu         00000010  20000000  1fff0018  00020000  2\*\*3
+                  CONTENTS, ALLOC, LOAD, READONLY, CODE
+  2 \.ramz         00000050  30040000  20000010  00030000  2\*\*2
+                  CONTENTS, ALLOC, LOAD, READONLY, CODE
+  3 .ARM.attributes 00000012  00000000  00000000  00030050  2\*\*0
+                  CONTENTS, READONLY
+SYMBOL TABLE:
+1fff0000 l    d  .raml	00000000 .raml
+20000000 l    d  .ramu	00000000 .ramu
+30040000 l    d  .ramz	00000000 .ramz
+00000000 l    d  .ARM.attributes	00000000 .ARM.attributes
+00000000 l    df \*ABS\*	00000000 .*/non-contiguous-arm.o
+20000008 l     F .ramu	00000008 __code4_veneer
+1fff0018 g       .raml	00000000 _raml_end
+20000000 g       .ramu	00000000 _ramu_start
+1fff000c g     F .raml	00000000 code2
+30040000 g       .ramz	00000000 _ramz_start
+1fff0000 g       .raml	00000000 _raml_start
+20000000 g     F .ramu	00000000 code3
+1fff0000 g     F .raml	00000000 code1
+30040050 g       .ramz	00000000 _ramz_end
+30040000 g     F .ramz	00000000 code4
+20000010 g       .ramu	00000000 _ramu_end
+
+
+Disassembly of section .raml:
+
+1fff0000 \<code1\>:
+1fff0000:	e1a00000 	nop			; \(mov r0, r0\)
+1fff0004:	e1a00000 	nop			; \(mov r0, r0\)
+1fff0008:	ebffffff 	bl	1fff000c \<code2\>
+
+1fff000c \<code2\>:
+1fff000c:	e1a00000 	nop			; \(mov r0, r0\)
+1fff0010:	e1a00000 	nop			; \(mov r0, r0\)
+1fff0014:	eb003ff9 	bl	20000000 \<code3\>
+
+Disassembly of section .ramu:
+
+20000000 \<code3\>:
+20000000:	e1a00000 	nop			; \(mov r0, r0\)
+20000004:	ebffffff 	bl	20000008 \<__code4_veneer\>
+
+20000008 \<__code4_veneer\>:
+20000008:	e51ff004 	ldr	pc, \[pc, #-4\]	; 2000000c \<__code4_veneer\+0x4\>
+2000000c:	30040000 	.word	0x30040000
+
+Disassembly of section .ramz:
+
+30040000 \<code4\>:
+30040000:	e1a00000 	.word	0xe1a00000
+30040004:	e1a00000 	.word	0xe1a00000
+30040008:	e1a00000 	.word	0xe1a00000
+3004000c:	e1a00000 	.word	0xe1a00000
+30040010:	e1a00000 	.word	0xe1a00000
+30040014:	e1a00000 	.word	0xe1a00000
+30040018:	e1a00000 	.word	0xe1a00000
+3004001c:	e1a00000 	.word	0xe1a00000
+30040020:	e1a00000 	.word	0xe1a00000
+30040024:	e1a00000 	.word	0xe1a00000
+30040028:	e1a00000 	.word	0xe1a00000
+3004002c:	e1a00000 	.word	0xe1a00000
+30040030:	e1a00000 	.word	0xe1a00000
+30040034:	e1a00000 	.word	0xe1a00000
+30040038:	e1a00000 	.word	0xe1a00000
+3004003c:	e1a00000 	.word	0xe1a00000
+30040040:	e1a00000 	.word	0xe1a00000
+30040044:	e1a00000 	.word	0xe1a00000
+30040048:	e1a00000 	.word	0xe1a00000
+3004004c:	e1a00000 	.word	0xe1a00000
diff --git a/ld/testsuite/ld-arm/non-contiguous-arm3.ld b/ld/testsuite/ld-arm/non-contiguous-arm3.ld
new file mode 100644
index 0000000..81bb695
--- /dev/null
+++ b/ld/testsuite/ld-arm/non-contiguous-arm3.ld
@@ -0,0 +1,33 @@
+/*
+ sections .code.1 and .code.2 fit in .raml
+ section .code.3 fits in .ramu even with a farcall stub to jump to code4
+ section .code.4 fits in .ramz
+*/
+MEMORY
+{
+  RAML (rwx) : ORIGIN = 0x1FFF0000, LENGTH = 0x0001c
+  RAMU (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00010
+  RAMZ (rwx) : ORIGIN = 0x30040000, LENGTH = 0x00400
+}
+
+SECTIONS
+{
+   .raml :
+   {  _raml_start = . ;
+      *(.boot) ;
+      *(.code) *(.code.*) ;
+      _raml_end = . ;
+   } > RAML
+
+   .ramu : AT ( ADDR (.raml) + SIZEOF (.raml) )
+   {  _ramu_start = . ;
+      *(.code) *(.code.*) ;
+      _ramu_end = . ;
+   } > RAMU
+
+   .ramz : AT ( ADDR (.ramu) + SIZEOF (.ramu) )
+   {  _ramz_start = . ;
+      *(.code) *(.code.*) ;
+     _ramz_end = . ;
+   } > RAMZ
+}
diff --git a/ld/testsuite/ld-arm/non-contiguous-arm4.d b/ld/testsuite/ld-arm/non-contiguous-arm4.d
new file mode 100644
index 0000000..28417c0
--- /dev/null
+++ b/ld/testsuite/ld-arm/non-contiguous-arm4.d
@@ -0,0 +1,4 @@
+#name: non-contiguous-arm4
+#source: non-contiguous-arm.s
+#ld: --enable-non-contiguous-regions -T non-contiguous-arm4.ld
+# error: \AOutput section '.ramu' not large enough for the linker-created stubs section '.code.3.__stub'.*\Z
diff --git a/ld/testsuite/ld-arm/non-contiguous-arm4.ld b/ld/testsuite/ld-arm/non-contiguous-arm4.ld
new file mode 100644
index 0000000..1e0c376
--- /dev/null
+++ b/ld/testsuite/ld-arm/non-contiguous-arm4.ld
@@ -0,0 +1,34 @@
+/*
+ sections .code.1 and .code.2 fit in .raml
+ section .code.3 fits in .ramu but not its farcall stub to jump to code4
+ section .code.4 fits in .ramz
+ expect an error about .code.3
+*/
+MEMORY
+{
+  RAML (rwx) : ORIGIN = 0x1FFF0000, LENGTH = 0x0001c
+  RAMU (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00008
+  RAMZ (rwx) : ORIGIN = 0x30040000, LENGTH = 0x00400
+}
+
+SECTIONS
+{
+   .raml :
+   {  _raml_start = . ;
+      *(.boot) ;
+      *(.code) *(.code.*) ;
+      _raml_end = . ;
+   } > RAML
+
+   .ramu : AT ( ADDR (.raml) + SIZEOF (.raml) )
+   {  _ramu_start = . ;
+      *(.code) *(.code.*) ;
+      _ramu_end = . ;
+   } > RAMU
+
+   .ramz : AT ( ADDR (.ramu) + SIZEOF (.ramu) )
+   {  _ramz_start = . ;
+      *(.code) *(.code.*) ;
+     _ramz_end = . ;
+   } > RAMZ
+}
diff --git a/ld/testsuite/ld-arm/non-contiguous-arm5.d b/ld/testsuite/ld-arm/non-contiguous-arm5.d
new file mode 100644
index 0000000..dc85d1e
--- /dev/null
+++ b/ld/testsuite/ld-arm/non-contiguous-arm5.d
@@ -0,0 +1,77 @@
+#name: non-contiguous-arm5
+#source: non-contiguous-arm.s
+#ld: --enable-non-contiguous-regions -T non-contiguous-arm5.ld
+#objdump: -rdth
+#xfail: [is_generic]
+
+.*:     file format elf32-(little|big)arm.*
+
+Sections:
+Idx Name          Size      VMA       LMA       File off  Algn
+  0 \.raml         0000000c  1fff0000  1fff0000  00010000  2\*\*2
+                  CONTENTS, ALLOC, LOAD, READONLY, CODE
+  1 \.ramu         00000014  20000000  1fff000c  00020000  2\*\*2
+                  CONTENTS, ALLOC, LOAD, READONLY, CODE
+  2 \.ramz         00000050  20040000  20000014  00030000  2\*\*2
+                  CONTENTS, ALLOC, LOAD, READONLY, CODE
+  3 .ARM.attributes 00000012  00000000  00000000  .*  2\*\*0
+                  CONTENTS, READONLY
+SYMBOL TABLE:
+1fff0000 l    d  .raml	00000000 .raml
+20000000 l    d  .ramu	00000000 .ramu
+20040000 l    d  .ramz	00000000 .ramz
+00000000 l    d  .ARM.attributes	00000000 .ARM.attributes
+00000000 l    df \*ABS\*	00000000 .*/non-contiguous-arm.o
+1fff000c g       .raml	00000000 _raml_end
+20000000 g       .ramu	00000000 _ramu_start
+20000000 g     F .ramu	00000000 code2
+20040000 g       .ramz	00000000 _ramz_start
+1fff0000 g       .raml	00000000 _raml_start
+2000000c g     F .ramu	00000000 code3
+1fff0000 g     F .raml	00000000 code1
+20040050 g       .ramz	00000000 _ramz_end
+20040000 g     F .ramz	00000000 code4
+20000014 g       .ramu	00000000 _ramu_end
+
+
+Disassembly of section .raml:
+
+1fff0000 \<code1\>:
+1fff0000:	e1a00000 	nop			; \(mov r0, r0\)
+1fff0004:	e1a00000 	nop			; \(mov r0, r0\)
+1fff0008:	eb003ffc 	bl	20000000 \<code2\>
+
+Disassembly of section .ramu:
+
+20000000 \<code2\>:
+20000000:	e1a00000 	nop			; \(mov r0, r0\)
+20000004:	e1a00000 	nop			; \(mov r0, r0\)
+20000008:	ebffffff 	bl	2000000c \<code3\>
+
+2000000c \<code3\>:
+2000000c:	e1a00000 	nop			; \(mov r0, r0\)
+20000010:	eb00fffa 	bl	20040000 \<code4\>
+
+Disassembly of section .ramz:
+
+20040000 \<code4\>:
+20040000:	e1a00000 	.word	0xe1a00000
+20040004:	e1a00000 	.word	0xe1a00000
+20040008:	e1a00000 	.word	0xe1a00000
+2004000c:	e1a00000 	.word	0xe1a00000
+20040010:	e1a00000 	.word	0xe1a00000
+20040014:	e1a00000 	.word	0xe1a00000
+20040018:	e1a00000 	.word	0xe1a00000
+2004001c:	e1a00000 	.word	0xe1a00000
+20040020:	e1a00000 	.word	0xe1a00000
+20040024:	e1a00000 	.word	0xe1a00000
+20040028:	e1a00000 	.word	0xe1a00000
+2004002c:	e1a00000 	.word	0xe1a00000
+20040030:	e1a00000 	.word	0xe1a00000
+20040034:	e1a00000 	.word	0xe1a00000
+20040038:	e1a00000 	.word	0xe1a00000
+2004003c:	e1a00000 	.word	0xe1a00000
+20040040:	e1a00000 	.word	0xe1a00000
+20040044:	e1a00000 	.word	0xe1a00000
+20040048:	e1a00000 	.word	0xe1a00000
+2004004c:	e1a00000 	.word	0xe1a00000
diff --git a/ld/testsuite/ld-arm/non-contiguous-arm5.ld b/ld/testsuite/ld-arm/non-contiguous-arm5.ld
new file mode 100644
index 0000000..99c0234
--- /dev/null
+++ b/ld/testsuite/ld-arm/non-contiguous-arm5.ld
@@ -0,0 +1,34 @@
+/*
+ section .code.1 fits in .raml
+ section .code.2 does not fit in .raml and goes to .ramu
+ section .code.3 would fit in .raml, but goes to .ramu:  Check that .code.2 and .code.3 are not swapped
+ section .code.4 fits in .ramz
+*/
+MEMORY
+{
+  RAML (rwx) : ORIGIN = 0x1FFF0000, LENGTH = 0x00014
+  RAMU (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00020
+  RAMZ (rwx) : ORIGIN = 0x20040000, LENGTH = 0x00400
+}
+
+SECTIONS
+{
+   .raml :
+   {  _raml_start = . ;
+      *(.boot) ;
+      *(.code) *(.code.*) ;
+      _raml_end = . ;
+   } > RAML
+
+   .ramu : AT ( ADDR (.raml) + SIZEOF (.raml) )
+   {  _ramu_start = . ;
+      *(.code) *(.code.*) ;
+      _ramu_end = . ;
+   } > RAMU
+
+   .ramz : AT ( ADDR (.ramu) + SIZEOF (.ramu) )
+   {  _ramz_start = . ;
+      *(.code) *(.code.*) ;
+     _ramz_end = . ;
+   } > RAMZ
+}
diff --git a/ld/testsuite/ld-arm/non-contiguous-arm6.d b/ld/testsuite/ld-arm/non-contiguous-arm6.d
new file mode 100644
index 0000000..605d846
--- /dev/null
+++ b/ld/testsuite/ld-arm/non-contiguous-arm6.d
@@ -0,0 +1,77 @@
+#name: non-contiguous-arm6
+#source: non-contiguous-arm.s
+#ld: --enable-non-contiguous-regions -T non-contiguous-arm6.ld
+#objdump: -rdth
+#xfail: [is_generic]
+#skip: arm*nacl
+
+.*:     file format elf32-(little|big)arm
+
+Sections:
+Idx Name          Size      VMA       LMA       File off  Algn
+  0 \.raml         00000028  1fff0000  1fff0000  00010000  2\*\*3
+                  CONTENTS, ALLOC, LOAD, READONLY, CODE
+  1 \.ramz         00000050  40040000  30000000  00020000  2\*\*2
+                  CONTENTS, ALLOC, LOAD, READONLY, CODE
+  2 .ARM.attributes 00000012  00000000  00000000  00020050  2\*\*0
+                  CONTENTS, READONLY
+SYMBOL TABLE:
+1fff0000 l    d  .raml	00000000 .raml
+40040000 l    d  .ramz	00000000 .ramz
+00000000 l    d  .ARM.attributes	00000000 .ARM.attributes
+00000000 l    df \*ABS\*	00000000 .*/non-contiguous-arm.o
+1fff0020 l     F .raml	00000008 __code4_veneer
+1fff0028 g       .raml	00000000 _raml_end
+30000000 g       .raml	00000000 _ramu_start
+1fff000c g     F .raml	00000000 code2
+40040000 g       .ramz	00000000 _ramz_start
+1fff0000 g       .raml	00000000 _raml_start
+1fff0018 g     F .raml	00000000 code3
+1fff0000 g     F .raml	00000000 code1
+40040050 g       .ramz	00000000 _ramz_end
+40040000 g     F .ramz	00000000 code4
+30000000 g       .raml	00000000 _ramu_end
+
+Disassembly of section .raml:
+
+1fff0000 \<code1\>:
+1fff0000:	e1a00000 	nop			; \(mov r0, r0\)
+1fff0004:	e1a00000 	nop			; \(mov r0, r0\)
+1fff0008:	ebffffff 	bl	1fff000c \<code2\>
+
+1fff000c \<code2\>:
+1fff000c:	e1a00000 	nop			; \(mov r0, r0\)
+1fff0010:	e1a00000 	nop			; \(mov r0, r0\)
+1fff0014:	ebffffff 	bl	1fff0018 \<code3\>
+
+1fff0018 \<code3\>:
+1fff0018:	e1a00000 	nop			; \(mov r0, r0\)
+1fff001c:	ebffffff 	bl	1fff0020 \<__code4_veneer\>
+
+1fff0020 \<__code4_veneer\>:
+1fff0020:	e51ff004 	ldr	pc, \[pc, #-4\]	; 1fff0024 \<__code4_veneer\+0x4\>
+1fff0024:	40040000 	.word	0x40040000
+
+Disassembly of section .ramz:
+
+40040000 \<code4\>:
+40040000:	e1a00000 	.word	0xe1a00000
+40040004:	e1a00000 	.word	0xe1a00000
+40040008:	e1a00000 	.word	0xe1a00000
+4004000c:	e1a00000 	.word	0xe1a00000
+40040010:	e1a00000 	.word	0xe1a00000
+40040014:	e1a00000 	.word	0xe1a00000
+40040018:	e1a00000 	.word	0xe1a00000
+4004001c:	e1a00000 	.word	0xe1a00000
+40040020:	e1a00000 	.word	0xe1a00000
+40040024:	e1a00000 	.word	0xe1a00000
+40040028:	e1a00000 	.word	0xe1a00000
+4004002c:	e1a00000 	.word	0xe1a00000
+40040030:	e1a00000 	.word	0xe1a00000
+40040034:	e1a00000 	.word	0xe1a00000
+40040038:	e1a00000 	.word	0xe1a00000
+4004003c:	e1a00000 	.word	0xe1a00000
+40040040:	e1a00000 	.word	0xe1a00000
+40040044:	e1a00000 	.word	0xe1a00000
+40040048:	e1a00000 	.word	0xe1a00000
+4004004c:	e1a00000 	.word	0xe1a00000
diff --git a/ld/testsuite/ld-arm/non-contiguous-arm6.ld b/ld/testsuite/ld-arm/non-contiguous-arm6.ld
new file mode 100644
index 0000000..6d6d6fe
--- /dev/null
+++ b/ld/testsuite/ld-arm/non-contiguous-arm6.ld
@@ -0,0 +1,33 @@
+/*
+ sections .code.1, .code.2 and .code.3 (+ farcall stub) fit in .raml
+ section .code.4 fits in .ramz
+ nothing fits in .ramu
+*/
+MEMORY
+{
+  RAML (rwx) : ORIGIN = 0x1FFF0000, LENGTH = 0x00030
+  RAMU (rwx) : ORIGIN = 0x30000000, LENGTH = 0x00010
+  RAMZ (rwx) : ORIGIN = 0x40040000, LENGTH = 0x00400
+}
+
+SECTIONS
+{
+   .raml :
+   {  _raml_start = . ;
+      *(.boot) ;
+      *(.code) *(.code.*) ;
+      _raml_end = . ;
+   } > RAML
+
+   .ramu : AT ( ADDR (.raml) + SIZEOF (.raml) )
+   {  _ramu_start = . ;
+      *(.code) *(.code.*) ;
+      _ramu_end = . ;
+   } > RAMU
+
+   .ramz : AT ( ADDR (.ramu) + SIZEOF (.ramu) )
+   {  _ramz_start = . ;
+      *(.code) *(.code.*) ;
+     _ramz_end = . ;
+   } > RAMZ
+}
diff --git a/ld/testsuite/ld-elf/non-contiguous.d b/ld/testsuite/ld-elf/non-contiguous.d
new file mode 100644
index 0000000..9694bcf
--- /dev/null
+++ b/ld/testsuite/ld-elf/non-contiguous.d
@@ -0,0 +1,29 @@
+#name: non-contiguous
+#source: non-contiguous.s
+#ld: --enable-non-contiguous-regions -T non-contiguous.ld
+#objdump: -rdsh
+#xfail: [is_generic]
+#skip: xtensa*
+
+.*:     file format .*
+
+Sections:
+Idx Name          Size      VMA  *     LMA  *     File off  Algn
+  0 \.raml         0000000c  0*1fff0000  0*1fff0000  .*  2\*\*.
+                  CONTENTS, ALLOC, LOAD, DATA
+  1 \.ramu         00000014  0*20000000  0*1fff000c  .*  2\*\*.
+                  CONTENTS, ALLOC, LOAD, DATA
+  2 \.ramz         0000003c  0*20040000  0*20000014  .*  2\*\*.
+                  CONTENTS, ALLOC, LOAD, DATA
+
+
+Contents of section .raml:
+ 1fff0000 (010+ 020+ 030+|0+01 0+02 0+03)           ............    
+Contents of section .ramu:
+ 20000000 (040+ 050+ 060+ 070+|0+04 0+05 0+06 0+07)  ................
+ 20000010 (080+|0+08)                             ....            
+Contents of section .ramz:
+ 20040000 09090909 09090909 09090909 09090909  ................
+ 20040010 09090909 09090909 09090909 09090909  ................
+ 20040020 09090909 09090909 09090909 09090909  ................
+ 20040030 09090909 09090909 09090909           ............    
diff --git a/ld/testsuite/ld-elf/non-contiguous.ld b/ld/testsuite/ld-elf/non-contiguous.ld
new file mode 100644
index 0000000..fc72253
--- /dev/null
+++ b/ld/testsuite/ld-elf/non-contiguous.ld
@@ -0,0 +1,47 @@
+/*
+ section .data.1 fits in .raml
+ sections .data.2 .data.3 fit in .ramu
+ section .data.4 fits in .ramz
+*/
+MEMORY
+{
+  RAML (rwx) : ORIGIN = 0x1FFF0000, LENGTH = 0x00014
+  RAMU (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00040
+  RAMZ (rwx) : ORIGIN = 0x20040000, LENGTH = 0x00040
+}
+
+SECTIONS
+{
+   /* Ignore this target specific info in output comparison.  */
+   /DISCARD/ : {
+             *(.ARM.attributes)
+	     *(.ARC.attributes)
+	     *(.riscv.attributes)
+	     *(.c6xabi.attributes)
+	     *(.trampolines)
+	     *(.reginfo)
+	     *(.note.renesas)
+	     *(.MIPS.abiflags)
+	     *(.MSP430.attributes)
+	     *(.gnu.attributes)
+   }
+
+   .raml : /*AT ( ADDR (.text) + SIZEOF (.text) )*/
+   {  _raml_start = . ;
+      *(.boot) ;
+      *(.data) *(.data.*) ;
+      _raml_end = . ;
+   } > RAML
+
+   .ramu : AT ( ADDR (.raml) + SIZEOF (.raml) )
+   {  _ramu_start = . ;
+      *(.data) *(.data.*) ;
+      _ramu_end = . ;
+   } > RAMU
+
+   .ramz : AT ( ADDR (.ramu) + SIZEOF (.ramu) )
+   {  _ramz_start = . ;
+      *(.data) *(.data.*) ;
+     _ramz_end = . ;
+   } > RAMZ
+}
diff --git a/ld/testsuite/ld-elf/non-contiguous.s b/ld/testsuite/ld-elf/non-contiguous.s
new file mode 100644
index 0000000..19bc2b1
--- /dev/null
+++ b/ld/testsuite/ld-elf/non-contiguous.s
@@ -0,0 +1,21 @@
+	.section .data.1, "a", %progbits
+	# Fit in RAML
+	.4byte 1
+	.4byte 2
+	.4byte 3
+
+	.section .data.2, "a", %progbits
+	# Fit in RAMU
+	.4byte 4
+	.4byte 5
+	.4byte 6
+
+	.section .data.3, "a", %progbits
+	# Fit in RAMU
+	.4byte 7
+	.4byte 8
+
+	.section .data.4, "a", %progbits
+	# Fit in RAMZ
+	.fill 0x3c, 1, 9
+
diff --git a/ld/testsuite/ld-powerpc/non-contiguous-powerpc.d b/ld/testsuite/ld-powerpc/non-contiguous-powerpc.d
new file mode 100644
index 0000000..858e353
--- /dev/null
+++ b/ld/testsuite/ld-powerpc/non-contiguous-powerpc.d
@@ -0,0 +1,5 @@
+#name: non-contiguous-powerpc
+#source: non-contiguous-powerpc.s
+#ld: --enable-non-contiguous-regions -T non-contiguous-powerpc.ld
+#error: \ARelaxation not supported with --enable-non-contiguous-regions.*
+#skip: powerpc64*-*
diff --git a/ld/testsuite/ld-powerpc/non-contiguous-powerpc.ld b/ld/testsuite/ld-powerpc/non-contiguous-powerpc.ld
new file mode 100644
index 0000000..744d246
--- /dev/null
+++ b/ld/testsuite/ld-powerpc/non-contiguous-powerpc.ld
@@ -0,0 +1,22 @@
+/* Distance between 'one' and 'two' means that relaxation implies that
+   .text.one's size increases. Even though the result would fit in
+   'oneandhalf', this is not supported by
+   --enable-non-contiguous-regions.  */
+
+MEMORY {
+       one (RXAI) : ORIGIN = 0x00000000, LENGTH = 0x00000010
+       oneandhalf (RXAI) : ORIGIN = 0x00001000, LENGTH = 0x00001010
+       two (RXAI) : ORIGIN = 0x20000000, LENGTH = 0x10000000
+}
+
+SECTIONS {
+      one : {
+         *(.text.one)
+      } > one
+      oneandhalf : {
+         *(.text.one)
+      } > oneandhalf
+      two : {
+      *(.text.two)
+      } > two
+}
diff --git a/ld/testsuite/ld-powerpc/non-contiguous-powerpc.s b/ld/testsuite/ld-powerpc/non-contiguous-powerpc.s
new file mode 100644
index 0000000..e02b322
--- /dev/null
+++ b/ld/testsuite/ld-powerpc/non-contiguous-powerpc.s
@@ -0,0 +1,8 @@
+	.machine "ppc"
+
+	.section .text.one
+	b	2f
+
+	.section .text.two
+2:
+	nop
diff --git a/ld/testsuite/ld-powerpc/non-contiguous-powerpc64.d b/ld/testsuite/ld-powerpc/non-contiguous-powerpc64.d
new file mode 100644
index 0000000..ff0e3fc
--- /dev/null
+++ b/ld/testsuite/ld-powerpc/non-contiguous-powerpc64.d
@@ -0,0 +1,5 @@
+#name: non-contiguous-powerpc64
+#source: non-contiguous-powerpc.s
+#as: -a64
+#ld: -melf64ppc --enable-non-contiguous-regions -T non-contiguous-powerpc.ld
+#error: .*Could not assign group.*
diff --git a/ld/testsuite/ld-powerpc/powerpc.exp b/ld/testsuite/ld-powerpc/powerpc.exp
index 94b2fac..84d7c9c 100644
--- a/ld/testsuite/ld-powerpc/powerpc.exp
+++ b/ld/testsuite/ld-powerpc/powerpc.exp
@@ -405,6 +405,7 @@ if [ supports_ppc64 ] then {
     run_dump_test "tlsgd"
     run_dump_test "tlsld"
     run_dump_test "tlsie"
+    run_dump_test "non-contiguous-powerpc64"
 }
 
 run_dump_test "localgot"
@@ -443,3 +444,5 @@ run_dump_test "vle-multiseg-6"
 
 run_dump_test "ppc476-shared"
 run_dump_test "ppc476-shared2"
+
+run_dump_test "non-contiguous-powerpc"