2008-07-07 Stan Shebs <stan@codesourcery.com>

	    * dis-init.c (init_disassemble_info): Init endian_code field.
	    * arm-dis.c (print_insn): Disassemble code according to
	    setting of endian_code.
	    (print_insn_big_arm): Detect when BE8 extension flag has been set.

diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 4925a22..ab435f5 100644 (file)
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,10 @@
+2008-07-07  Stan Shebs  <stan@codesourcery.com>
+
+       * dis-init.c (init_disassemble_info): Init endian_code field.
+       * arm-dis.c (print_insn): Disassemble code according to
+       setting of endian_code.
+       (print_insn_big_arm): Detect when BE8 extension flag has been set.
+
 2008-06-30  Richard Sandiford  <rdsandiford@googlemail.com>
 
        * mips-dis.c (_print_insn_mips): Use bfd_asymbol_flavour to check

diff --git a/opcodes/arm-dis.c b/opcodes/arm-dis.c
index e9a48e5..155e495 100644 (file)
--- a/opcodes/arm-dis.c
+++ b/opcodes/arm-dis.c
@@ -3974,6 +3974,7 @@ print_insn (bfd_vma pc, struct disassemble_info *info, bfd_boolean little)
   int           status;
   int           is_thumb = FALSE;
   int           is_data = FALSE;
+  int           little_code;
   unsigned int size = 4;
   void         (*printer) (bfd_vma, struct disassemble_info *, long);
   bfd_boolean   found = FALSE;
@@ -3986,6 +3987,10 @@ print_insn (bfd_vma pc, struct disassemble_info *info, bfd_boolean little)
       info->disassembler_options = NULL;
     }
 
+  /* Decide if our code is going to be little-endian, despite what the
+     function argument might say.  */
+  little_code = ((info->endian_code == BFD_ENDIAN_LITTLE) || little);
+
   /* First check the full symtab for a mapping symbol, even if there
      are no usable non-mapping symbols for this address.  */
   if (info->symtab != NULL
@@ -4131,7 +4136,7 @@ print_insn (bfd_vma pc, struct disassemble_info *info, bfd_boolean little)
       size = 4;
 
       status = info->read_memory_func (pc, (bfd_byte *)b, 4, info);
-      if (little)
+      if (little_code)
        given = (b[0]) | (b[1] << 8) | (b[2] << 16) | (b[3] << 24);
       else
        given = (b[3]) | (b[2] << 8) | (b[1] << 16) | (b[0] << 24);
@@ -4147,7 +4152,7 @@ print_insn (bfd_vma pc, struct disassemble_info *info, bfd_boolean little)
       size = 2;
 
       status = info->read_memory_func (pc, (bfd_byte *)b, 2, info);
-      if (little)
+      if (little_code)
        given = (b[0]) | (b[1] << 8);
       else
        given = (b[1]) | (b[0] << 8);
@@ -4161,7 +4166,7 @@ print_insn (bfd_vma pc, struct disassemble_info *info, bfd_boolean little)
              || (given & 0xF800) == 0xE800)
            {
              status = info->read_memory_func (pc + 2, (bfd_byte *)b, 2, info);
-             if (little)
+             if (little_code)
                given = (b[0]) | (b[1] << 8) | (given << 16);
              else
                given = (b[1]) | (b[0] << 8) | (given << 16);
@@ -4172,7 +4177,7 @@ print_insn (bfd_vma pc, struct disassemble_info *info, bfd_boolean little)
        }
 
       if (ifthen_address != pc)
-       find_ifthen_state(pc, info, little);
+       find_ifthen_state(pc, info, little_code);
 
       if (ifthen_state)
        {
@@ -4210,6 +4215,12 @@ print_insn (bfd_vma pc, struct disassemble_info *info, bfd_boolean little)
 int
 print_insn_big_arm (bfd_vma pc, struct disassemble_info *info)
 {
+  /* Detect BE8-ness and record it in the disassembler info.  */
+  if (info->flavour == bfd_target_elf_flavour
+      && info->section != NULL
+      && (elf_elfheader (info->section->owner)->e_flags & EF_ARM_BE8))
+    info->endian_code = BFD_ENDIAN_LITTLE;
+
   return print_insn (pc, info, FALSE);
 }
 

diff --git a/opcodes/dis-init.c b/opcodes/dis-init.c
index dff91eb..8027963 100644 (file)
--- a/opcodes/dis-init.c
+++ b/opcodes/dis-init.c
@@ -32,6 +32,7 @@ init_disassemble_info (struct disassemble_info *info, void *stream,
   info->flavour = bfd_target_unknown_flavour;
   info->arch = bfd_arch_unknown;
   info->endian = BFD_ENDIAN_UNKNOWN;
+  info->endian_code = info->endian;
   info->octets_per_byte = 1;
   info->fprintf_func = fprintf_func;
   info->stream = stream;