Add function bfd_elf_get_sign_extend_vma.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index ba58bfa..bde689f 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,10 @@
+Tue Jul 11 17:21:52 2000  Andrew Cagney  <cagney@b1.cygnus.com>
+
+       * elf.c (bfd_elf_get_sign_extend_vma): Return tendency of VMA
+       addresses to be "naturally" sign extended.  Return -1 if unknown.
+       * bfd-in.h (bfd_elf_get_sign_extend_vma): : Add declaration.
+       * bfd-in2.h: Regenerate.
+
 Tue Jul 11 16:25:52 2000  Andrew Cagney  <cagney@b1.cygnus.com>
 
        * ecoffswap.h (ecoff_get_off, ecoff_put_off): Add ECOFF_SIGNED_32

diff --git a/bfd/bfd-in.h b/bfd/bfd-in.h
index f0a1d84..80be303 100644 (file)
--- a/bfd/bfd-in.h
+++ b/bfd/bfd-in.h
@@ -646,6 +646,9 @@ extern int bfd_get_elf_phdrs PARAMS ((bfd *abfd, void *phdrs));
 /* Return the arch_size field of an elf bfd, or -1 if not elf.  */
 extern int bfd_elf_get_arch_size PARAMS ((bfd *));
 
+/* Return true if address "naturally" sign extends, or -1 if not elf. */
+extern int bfd_elf_get_sign_extend_vma PARAMS ((bfd *));
+
 /* SunOS shared library support routines for the linker.  */
 
 extern struct bfd_link_needed_list *bfd_sunos_get_needed_list

diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index b151e25..adf2dd8 100644 (file)
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -646,6 +646,9 @@ extern int bfd_get_elf_phdrs PARAMS ((bfd *abfd, void *phdrs));
 /* Return the arch_size field of an elf bfd, or -1 if not elf.  */
 extern int bfd_elf_get_arch_size PARAMS ((bfd *));
 
+/* Return true if address "naturally" sign extends, or -1 if not elf. */
+extern int bfd_elf_get_sign_extend_vma PARAMS ((bfd *));
+
 /* SunOS shared library support routines for the linker.  */
 
 extern struct bfd_link_needed_list *bfd_sunos_get_needed_list

diff --git a/bfd/elf.c b/bfd/elf.c
index f88ebbd..d334cb9 100644 (file)
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -1777,6 +1777,20 @@ bfd_elf_get_arch_size (abfd)
   return (get_elf_backend_data (abfd))->s->arch_size;
 }
 
+/* True if addresses "naturally" sign extend.  Return 0/1 if known.
+   -1 if unknown. */
+int
+bfd_elf_get_sign_extend_vma (abfd)
+     bfd *abfd;
+{
+  if (bfd_get_flavour (abfd) != bfd_target_elf_flavour)
+    {
+      bfd_set_error (bfd_error_wrong_format);
+      return -1;
+    }
+  return (get_elf_backend_data (abfd)->sign_extend_vma);
+}
+
 /* Assign all ELF section numbers.  The dummy first section is handled here
    too.  The link/info pointers for the standard section types are filled
    in here too, while we're at it.  */