From 003773ac55051bb116519285546257da6a119c61 Mon Sep 17 00:00:00 2001
From: Alexandre Oliva <aoliva@redhat.com>
Date: Fri, 24 Aug 2001 13:55:55 +0000
Subject: [PATCH] * bfd.c (bfd_alt_mach_code): New function. * bfd-in2.h:
 Rebuilt.

---
 bfd/ChangeLog |  5 +++++
 bfd/bfd-in2.h |  3 +++
 bfd/bfd.c     | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 63 insertions(+)

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 5160843de..7e9210706 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,5 +1,10 @@
 2001-08-24  Alexandre Oliva  <aoliva@redhat.com>
 
+	* bfd.c (bfd_alt_mach_code): New function.
+	* bfd-in2.h: Rebuilt.
+
+2001-08-24  Alexandre Oliva  <aoliva@redhat.com>
+
 	* elf-m10300.c (mn10300_elf_relocate_section): Test the right
 	`type' field in the hash entry when deciding whether to follow a
 	link.
diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index 4b6f44e40..64c995c5a 100644
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -3296,6 +3296,9 @@ extern bfd_byte *bfd_get_relocated_section_contents
                  struct bfd_link_order *, bfd_byte *,
                  boolean, asymbol **));
 
+boolean
+bfd_alt_mach_code PARAMS ((bfd *abfd, int index));
+
 symindex
 bfd_get_next_mapent PARAMS ((bfd *abfd, symindex previous, carsym **sym));
 
diff --git a/bfd/bfd.c b/bfd/bfd.c
index 2f5e26093..aa3dd2a62 100644
--- a/bfd/bfd.c
+++ b/bfd/bfd.c
@@ -1288,3 +1288,58 @@ bfd_fprintf_vma (abfd, stream, value)
   else
     fprintf_vma ((FILE *) stream, value);
 }
+
+/*
+FUNCTION
+	bfd_alt_mach_code
+
+SYNOPSIS
+	boolean bfd_alt_mach_code(bfd *abfd, int index);
+
+DESCRIPTION
+
+	When more than one machine code number is available for the
+	same machine type, this function can be used to switch between
+	the preferred one (index == 0) and any others.  Currently,
+	only ELF supports this feature, with up to two alternate
+	machine codes.
+*/
+
+boolean
+bfd_alt_mach_code (abfd, index)
+     bfd *abfd;
+     int index;
+{
+  if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
+    {
+      int code;
+
+      switch (index)
+	{
+	case 0:
+	  code = get_elf_backend_data (abfd)->elf_machine_code;
+	  break;
+
+	case 1:
+	  code = get_elf_backend_data (abfd)->elf_machine_alt1;
+	  if (code == 0)
+	    return false;
+	  break;
+
+	case 2:
+	  code = get_elf_backend_data (abfd)->elf_machine_alt2;
+	  if (code == 0)
+	    return false;
+	  break;
+
+	default:
+	  return false;
+	}
+
+      elf_elfheader (abfd)->e_machine = code;
+
+      return true;
+    }
+
+  return false;
+}
-- 
2.11.4.GIT