From 22a398e1906e55c453f561070206acb80daf91f1 Mon Sep 17 00:00:00 2001
From: Nick Clifton <nickc@redhat.com>
Date: Fri, 14 Nov 2003 15:12:44 +0000
Subject: Add new field to disassemble_info structure: symbol_is_valid() and
 use it to skip displaying arm elf mapping symbols in disassembly output.

---
 opcodes/ChangeLog     | 12 ++++++++++++
 opcodes/arm-dis.c     | 17 +++++++++++++++++
 opcodes/dis-buf.c     | 11 ++++++++++-
 opcodes/dis-init.c    |  2 ++
 opcodes/disassemble.c | 18 ++++++++++++++++++
 5 files changed, 59 insertions(+), 1 deletion(-)

(limited to 'opcodes')

diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 2f613cb..5918252 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,15 @@
+2003-11-14  Nick Clifton  <nickc@redhat.com>
+
+	* dis-init.c (init_disassemble_info): Initialise
+	symbol_is_valid field.
+	* dis-buf.c (generic_symbol_is_valid): New function.  Always
+ 	returns TRUE.
+	* arm-dis.c (arm_symbol_is_valid): New function.  Return FALSE
+        for ARM ELF mapping symbols.
+        * disassemble.c (disassemble_init_for_target): Set
+	symbol_is_valid field to arm_symbol_is_valid of the target is
+	an ARM.
+
 2003-11-05  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* m68k-opc.c (m68k_opcodes): Reorder "fmovel".
diff --git a/opcodes/arm-dis.c b/opcodes/arm-dis.c
index 5f8fc4c..d4ba196 100644
--- a/opcodes/arm-dis.c
+++ b/opcodes/arm-dis.c
@@ -1145,6 +1145,23 @@ print_insn_thumb (pc, info, given)
   abort ();
 }
 
+/* Disallow mapping symbols ($a, $b, $d, $t etc) from
+   being displayed in symbol relative addresses.  */
+
+bfd_boolean
+arm_symbol_is_valid (asymbol * sym,
+		     struct disassemble_info * info ATTRIBUTE_UNUSED)
+{
+  const char * name;
+  
+  if (sym == NULL)
+    return FALSE;
+
+  name = bfd_asymbol_name (sym);
+
+  return (name && *name != '$');
+}
+
 /* Parse an individual disassembler option.  */
 
 void
diff --git a/opcodes/dis-buf.c b/opcodes/dis-buf.c
index 8f846a9..83fbfbd 100644
--- a/opcodes/dis-buf.c
+++ b/opcodes/dis-buf.c
@@ -107,7 +107,7 @@ generic_strcat_address (addr, buf, len)
 }
 #endif
 
-/* Just return the given address.  */
+/* Just return true.  */
 
 int
 generic_symbol_at_address (addr, info)
@@ -116,3 +116,12 @@ generic_symbol_at_address (addr, info)
 {
   return 1;
 }
+
+/* Just return TRUE.  */
+
+bfd_boolean
+generic_symbol_is_valid (asymbol * sym ATTRIBUTE_UNUSED,
+			 struct disassemble_info *info ATTRIBUTE_UNUSED)
+{
+  return TRUE;
+}
diff --git a/opcodes/dis-init.c b/opcodes/dis-init.c
index 4c3e36e..35a5ee7 100644
--- a/opcodes/dis-init.c
+++ b/opcodes/dis-init.c
@@ -26,6 +26,7 @@ init_disassemble_info (struct disassemble_info *info, void *stream,
 		       fprintf_ftype fprintf_func)
 {
   memset (info, 0, sizeof (*info));
+
   info->flavour = bfd_target_unknown_flavour;
   info->arch = bfd_arch_unknown;
   info->endian = BFD_ENDIAN_UNKNOWN;
@@ -36,6 +37,7 @@ init_disassemble_info (struct disassemble_info *info, void *stream,
   info->memory_error_func = perror_memory;
   info->print_address_func = generic_print_address;
   info->symbol_at_address_func = generic_symbol_at_address;
+  info->symbol_is_valid = generic_symbol_is_valid;
   info->display_endian = BFD_ENDIAN_UNKNOWN;
 }
 
diff --git a/opcodes/disassemble.c b/opcodes/disassemble.c
index 14113b5..d5b17be 100644
--- a/opcodes/disassemble.c
+++ b/opcodes/disassemble.c
@@ -397,3 +397,21 @@ disassembler_usage (stream)
 
   return;
 }
+
+void
+disassemble_init_for_target (struct disassemble_info * info)
+{
+  if (info == NULL)
+    return;
+
+  switch (info->arch)
+    {
+#ifdef ARCH_arm
+    case bfd_arch_arm:
+      info->symbol_is_valid = arm_symbol_is_valid;
+      break;
+#endif
+    default:
+      break;
+    }
+}
-- 
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