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Commit: MSP430: Fix the frame address size

Hi Guys,

  I am applying the patch below to set the correct frame size for the
  MSP430 port.  In large mode it uses 32-bit addresses, (actually only
  20 bits are significant, but there is no way to encode this).
  Otherwise it uses 16-bit addresses.


2015-07-27  Nick Clifton  <>

	* elf32-msp430.c (uses_large_model): New function.
	(msp430_elf_eh_frame_address_size): New function.
	(elf_backend_eh_frame_address_size): Define.

diff --git a/bfd/elf32-msp430.c b/bfd/elf32-msp430.c
index 9e69791..83bb9ce 100644
--- a/bfd/elf32-msp430.c
+++ b/bfd/elf32-msp430.c
@@ -2532,6 +2532,27 @@ msp430_elf_is_target_special_symbol (bfd *abfd, asymbol *sym)
   return _bfd_elf_is_local_label_name (abfd, sym->name);
+static bfd_boolean
+uses_large_model (bfd *abfd)
+  obj_attribute * attr;
+  if (abfd->flags & BFD_LINKER_CREATED)
+    return FALSE;
+  attr = elf_known_obj_attributes_proc (abfd);
+  if (attr == NULL)
+    return FALSE;
+  return attr[OFBA_MSPABI_Tag_Code_Model].i == 2;
+static unsigned int
+elf32_msp430_eh_frame_address_size (bfd *abfd, asection *sec ATTRIBUTE_UNUSED)
+  return uses_large_model (abfd) ? 4 : 2;
 /* This is gross.  The MSP430 EABI says that (sec 11.5):
      "An implementation may choose to use Rel or Rela
@@ -2563,6 +2584,7 @@ msp430_elf_is_target_special_symbol (bfd *abfd, asymbol *sym)
 #undef  elf_backend_obj_attrs_arg_type
 #define elf_backend_obj_attrs_arg_type		elf32_msp430_obj_attrs_arg_type
 #define bfd_elf32_bfd_merge_private_bfd_data	elf32_msp430_merge_private_bfd_data
+#define elf_backend_eh_frame_address_size	elf32_msp430_eh_frame_address_size
 #define ELF_ARCH		bfd_arch_msp430

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