bfd/

	* bfd-in.h (bfd_elf_stack_segment_size): Declare.
	* bfd-in2.h: Rebuilt.
	* elfxx-target.h (elf_backend_stack_align): New.
	(elfNN_bed): Add it.
	* elf-bfd.h (struct elf_backend_data): Add stack_align field.
	* elf.c (bfd_elf_map_sections_to_segments): Pay attention to
	stack_align and stacksize for PT_GNU_STACK segment.
	(assign_file_positions_for_non_load_sections): Set p_memsz for
	PT_GNU_STACK segment.
	(copy_elf_program_header): Copy PT_GNU_STACK size.
	* elflink.c (bfd_elf_stack_segment_size): New function, taken from
	uclinux backends.
	(bfd_elf_size_dynamic_sections): Determine
	PT_GNU_STACK requirements after calling backend.  Pay attention to
	stacksize.
	* elf32-bfin.c (elf32_bfinfdpic_always_size_sections): Call
	bfd_elf_stack_segment_size.
	(elf32_bfinfdpic_modify_program_headers): Delete.
	(elf32_bfingfdpic_copy_private_bfd_data): Don't copy PT_GNU_STACK
	here.
	(elf_backend_stack_align): Override.
	(elf_backend_modify_program_headers): Don't override.
	* elf32-frv.c (frvfdpic_always_size_sections): Call
	bfd_elf_stack_segment_size.
	(elf32_frvfdpic_modify_program_headers): Delete.
	(elf32_frvfdpic_copy_private_bfd_data): Don't copy PT_GNU_STACK
	here.
	(elf_backend_stack_align): Override.
	(elf_backend_modify_program_headers): Don't override.
	* elf32-lm32.c (lm32_elf_always_size_sections): Leave
	PT_GNU_STACK creation to underlying elf support.  Check
	__stacksize here for backwards compatibility, and set it if
	needed.
	(lm32_elf_modify_segment_map): Delete.
	(lm32_elf_modify_program_headers): Delete.
	(elf_backend_stack_align): Override.
	(elf_backend_modify_segment_map): Don't override.
	(elf_backend_modify_program_headers): Don't override.
	* elf32-sh.c (sh_elf_always_size_sections): Call
	bfd_elf_stack_segment_size.
	(sh_elf_modify_program_headers): Delete.
	(sh_elf_copy_private_data): Don't copy PT_GNU_STACK
	here.
	(elf_backend_stack_align): Override.
	(elf_backend_modify_program_headers): Don't override.
	* elf32-tic6x.c (elf32_tic6x_always_size_sections): Call
	bfd_elf_stack_segment_size.
	(elf32_tic6x_modify_program_headers): Delete.
	(elf32_tic6x_copy_private_data): Delete.
	(elf_backend_stack_align): Override.
	(bfd_elf32_bfd_copy_private_bfd_data): Don't override.
	(elf_backend_modify_program_headers): Don't override.

	include/
	* bfdlink.h (struct bfd_link_info): Add stacksize option.

	ld/
	* ld.texinfo (stack-size): New option.
	* emultempl/elf32.em: Add stack-size option.

	ld/testsuite/
	* ld-elf/binutils.exp: Add -z stack-size=0.
	* ld-elf/elf.exp: Add stack-exec and stack-size tests.
	* ld-elf/orphan-region.d: Add stack-size option. Remove xfail.
	* ld-elf/stack-exec.rd: New.
	* ld-elf/stack-size.rd: New.
	* ld-elf/stack.s: New.
	* ld-scripts/empty-aligned.d: Add stack-size option.
	* ld-sh/fdpic-stack-set.d: New.
	* ld-tic6x/shlib-1.rd: Remove __stacksize symbol.
	* ld-tic6x/shlib-1b.rd: Likewise.
	* ld-tic6x/shlib-1r.rd: Likewise.
	* ld-tic6x/shlib-1rb.rd: Likewise.
	* ld-tic6x/shlib-app-1.rd: Likewise.
	* ld-tic6x/shlib-app-1b.rd: Likewise.
	* ld-tic6x/shlib-app-1r.rd: Likewise.
	* ld-tic6x/shlib-app-1rb.rd: Likewise.
	* ld-tic6x/shlib-noindex.rd: Likewise.
	* ld-tic6x/static-app-1.rd: Likewise.
	* ld-tic6x/static-app-1b.rd: Likewise.
	* ld-tic6x/static-app-1r.rd: Likewise.
	* ld-tic6x/static-app-1rb.rd: Likewise.

1 files changed, 5 insertions, 119 deletions

diff --git a/bfd/elf32-tic6x.c b/bfd/elf32-tic6x.c
index ef0d1555a9..419b269e35 100644
--- a/bfd/elf32-tic6x.c
+++ b/bfd/elf32-tic6x.c
@@ -3520,79 +3520,10 @@ elf32_tic6x_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
 static bfd_boolean
 elf32_tic6x_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
 {
-  if (elf32_tic6x_using_dsbt (output_bfd) && !info->relocatable)
-    {
-      struct elf_link_hash_entry *h;
-
-      /* Force a PT_GNU_STACK segment to be created.  */
-      if (! elf_tdata (output_bfd)->stack_flags)
-	elf_tdata (output_bfd)->stack_flags = PF_R | PF_W | PF_X;
-
-      /* Define __stacksize if it's not defined yet.  */
-      h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
-				FALSE, FALSE, FALSE);
-      if (! h || h->root.type != bfd_link_hash_defined
-	  || h->type != STT_OBJECT
-	  || !h->def_regular)
-	{
-	  struct bfd_link_hash_entry *bh = NULL;
-
-	  if (!(_bfd_generic_link_add_one_symbol
-		(info, output_bfd, "__stacksize",
-		 BSF_GLOBAL, bfd_abs_section_ptr, DEFAULT_STACK_SIZE,
-		 (const char *) NULL, FALSE,
-		 get_elf_backend_data (output_bfd)->collect, &bh)))
-	    return FALSE;
-
-	  h = (struct elf_link_hash_entry *) bh;
-	  h->def_regular = 1;
-	  h->type = STT_OBJECT;
-	}
-    }
-  return TRUE;
-}
-
-static bfd_boolean
-elf32_tic6x_modify_program_headers (bfd *output_bfd,
-				    struct bfd_link_info *info)
-{
-  struct elf_obj_tdata *tdata = elf_tdata (output_bfd);
-  struct elf_segment_map *m;
-  Elf_Internal_Phdr *p;
-
-  /* objcopy and strip preserve what's already there using
-     elf32_tic6x_copy_private_bfd_data ().  */
-  if (! info)
-    return TRUE;
-
-  for (p = tdata->phdr, m = tdata->segment_map; m != NULL; m = m->next, p++)
-    if (m->p_type == PT_GNU_STACK)
-      break;
-
-  if (m)
-    {
-      struct elf_link_hash_entry *h;
-
-      /* Obtain the pointer to the __stacksize symbol.  */
-      h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
-				FALSE, FALSE, FALSE);
-      if (h)
-	{
-	  while (h->root.type == bfd_link_hash_indirect
-		 || h->root.type == bfd_link_hash_warning)
-	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
-	  BFD_ASSERT (h->root.type == bfd_link_hash_defined);
-	}
-
-      /* Set the header p_memsz from the symbol value.  We
-	 intentionally ignore the symbol section.  */
-      if (h && h->root.type == bfd_link_hash_defined)
-	p->p_memsz = h->root.u.def.value;
-      else
-	p->p_memsz = DEFAULT_STACK_SIZE;
-
-      p->p_align = 8;
-    }
+  if (elf32_tic6x_using_dsbt (output_bfd) && !info->relocatable
+      && !bfd_elf_stack_segment_size (output_bfd, info,
+				      "__stacksize", DEFAULT_STACK_SIZE))
+    return FALSE;
 
   return TRUE;
 }
@@ -4020,49 +3951,6 @@ elf32_tic6x_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
   return TRUE;
 }
 
-static bfd_boolean
-elf32_tic6x_copy_private_data (bfd * ibfd, bfd * obfd)
-{
-  _bfd_elf_copy_private_bfd_data (ibfd, obfd);
-
-  if (! is_tic6x_elf (ibfd) || ! is_tic6x_elf (obfd))
-    return TRUE;
-
-  /* Copy the stack size.  */
-  if (elf_tdata (ibfd)->phdr && elf_tdata (obfd)->phdr
-      && elf32_tic6x_using_dsbt (ibfd) && elf32_tic6x_using_dsbt (obfd))
-    {
-      unsigned i;
-
-      for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
-	if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
-	  {
-	    Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
-
-	    for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
-	      if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
-		{
-		  memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
-
-		  /* Rewrite the phdrs, since we're only called after they
-		     were first written.  */
-		  if (bfd_seek (obfd,
-				(bfd_signed_vma) get_elf_backend_data (obfd)
-				->s->sizeof_ehdr, SEEK_SET) != 0
-		      || get_elf_backend_data (obfd)->s
-		      ->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
-					 elf_elfheader (obfd)->e_phnum) != 0)
-		    return FALSE;
-		  break;
-		}
-
-	    break;
-	  }
-    }
-
-  return TRUE;
-}
-
 /* Add a new unwind edit to the list described by HEAD, TAIL.  If TINDEX is zero,
    adds the edit to the start of the list.  (The list must be built in order of
    ascending TINDEX: the function's callers are primarily responsible for
@@ -4484,12 +4372,12 @@ elf32_tic6x_set_osabi (bfd *abfd, struct bfd_link_info *link_info)
 #define ELF_MAXPAGESIZE		0x1000
 #define bfd_elf32_bfd_reloc_type_lookup elf32_tic6x_reloc_type_lookup
 #define bfd_elf32_bfd_reloc_name_lookup elf32_tic6x_reloc_name_lookup
-#define bfd_elf32_bfd_copy_private_bfd_data	elf32_tic6x_copy_private_data
 #define bfd_elf32_bfd_merge_private_bfd_data	elf32_tic6x_merge_private_bfd_data
 #define bfd_elf32_mkobject		elf32_tic6x_mkobject
 #define bfd_elf32_bfd_link_hash_table_create  elf32_tic6x_link_hash_table_create
 #define bfd_elf32_bfd_link_hash_table_free    elf32_tic6x_link_hash_table_free
 #define bfd_elf32_new_section_hook	elf32_tic6x_new_section_hook
+#define elf_backend_stack_align		8
 #define elf_backend_can_gc_sections	1
 #define elf_backend_default_use_rela_p	1
 #define elf_backend_may_use_rel_p	1
@@ -4509,8 +4397,6 @@ elf32_tic6x_set_osabi (bfd *abfd, struct bfd_link_info *link_info)
 #define elf_backend_fake_sections       elf32_tic6x_fake_sections
 #define elf_backend_gc_sweep_hook	elf32_tic6x_gc_sweep_hook
 #define elf_backend_gc_mark_extra_sections elf32_tic6x_gc_mark_extra_sections
-#define elf_backend_modify_program_headers \
-  elf32_tic6x_modify_program_headers
 #define elf_backend_create_dynamic_sections \
   elf32_tic6x_create_dynamic_sections
 #define elf_backend_adjust_dynamic_symbol \