2002-05-07 Michal Ludvig <mludvig@suse.cz>

	* dwarf2cfi.c: Code cleanup, removed unused variables,
	added default labels to switch {} statements.
	* x86-64-tdep.c: Ditto.
	* x86-64-linux-nat.c: Ditto.

4 files changed, 21 insertions, 15 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 9b583d3..2abbc48 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,10 @@
+2002-05-07  Michal Ludvig  <mludvig@suse.cz>
+
+	* dwarf2cfi.c: Code cleanup, removed unused variables, 
+	added default labels to switch {} statements.
+	* x86-64-tdep.c: Ditto.
+	* x86-64-linux-nat.c: Ditto.
+
 2002-05-07  Jason Thorpe  <thorpej@wasabisystems.com>
 
 	* solib.h: Protect against multiple inclusion.
diff --git a/gdb/dwarf2cfi.c b/gdb/dwarf2cfi.c
index ffbeb5d..a62a1e0 100644
--- a/gdb/dwarf2cfi.c
+++ b/gdb/dwarf2cfi.c
@@ -222,8 +222,6 @@ static CORE_ADDR read_encoded_pointer (bfd *abfd, char **p,
 static LONGEST read_initial_length (bfd *abfd, char *buf, int *bytes_read);
 static ULONGEST read_length (bfd *abfd, char *buf, int *bytes_read,
 			     int dwarf64);
-static ULONGEST read_address (bfd *abfd, char **p);
-
 
 static int is_cie (ULONGEST cie_id, int dwarf64);
 static int compare_fde_unit (const void *a, const void *b);
@@ -280,7 +278,7 @@ static struct context *
 context_alloc ()
 {
   struct context *context;
-  struct context_reg *reg;
+
   int regs_size = sizeof (struct context_reg) * NUM_REGS;
 
   context = (struct context *) obstack_alloc (&unwind_tmp_obstack,
@@ -297,7 +295,7 @@ static struct frame_state *
 frame_state_alloc ()
 {
   struct frame_state *fs;
-  struct frame_state_reg *reg;
+
   int regs_size = sizeof (struct frame_state_reg) * NUM_REGS;
 
   fs = (struct frame_state *) obstack_alloc (&unwind_tmp_obstack,
@@ -319,7 +317,6 @@ unwind_tmp_obstack_free ()
 static void
 context_cpy (struct context *dst, struct context *src)
 {
-  struct context_reg *reg = dst->reg;
   int regs_size = sizeof (struct context_reg) * NUM_REGS;
 
   *dst = *src;
@@ -586,7 +583,6 @@ execute_cfa_program ( struct objfile *objfile, char *insn_ptr, char *insn_end,
       unsigned char insn = *insn_ptr++;
       ULONGEST reg, uoffset;
       LONGEST offset;
-      int bytes_read;
 
       if (insn & DW_CFA_advance_loc)
 	fs->pc += (insn & 0x3f) * fs->code_align;
@@ -788,7 +784,6 @@ frame_state_for (struct context *context, struct frame_state *fs)
 {
   struct fde_unit *fde;
   struct cie_unit *cie;
-  unsigned char *aug, *insn, *end;
 
   context->args_size = 0;
   context->lsda = 0;
@@ -1109,6 +1104,8 @@ execute_stack_op (struct objfile *objfile,
 	    case DW_OP_plus_uconst:
 	      result += read_uleb128 (objfile->obfd, &op_ptr);
 	      break;
+	    default:
+	      break;
 	    }
 	  break;
 
@@ -1186,6 +1183,8 @@ execute_stack_op (struct objfile *objfile,
 	      case DW_OP_ne:
 		result = (LONGEST) first != (LONGEST) second;
 		break;
+	      default:	/* This label is here just to avoid warning.  */
+	        break; 
 	      }
 	  }
 	  break;
@@ -1255,6 +1254,8 @@ update_context (struct context *context, struct frame_state *fs, int chain)
 					    exp + len, context, 0);
 	break;
       }
+    default:
+      break;
     }
   context->cfa = cfa;
 
@@ -1346,7 +1347,7 @@ compare_fde_unit (const void *a, const void *b)
 }
 
 /*  Build the cie_chunks and fde_chunks tables from informations
-    in .debug.frame section.  */
+    in .debug_frame section.  */
 void
 dwarf2_build_frame_info (struct objfile *objfile)
 {
diff --git a/gdb/x86-64-linux-nat.c b/gdb/x86-64-linux-nat.c
index fd9246c..3295327 100644
--- a/gdb/x86-64-linux-nat.c
+++ b/gdb/x86-64-linux-nat.c
@@ -406,12 +406,6 @@ static struct core_fns linux_elf_core_fns = {
 #define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
 #endif
 
-/* Record the value of the debug control register.  */
-static long debug_control_mirror;
-
-/* Record which address associates with which register.  */
-static CORE_ADDR address_lookup[DR_LASTADDR - DR_FIRSTADDR + 1];
-
 /* Return the address of register REGNUM.  BLOCKEND is the value of
    u.u_ar0, which should point to the registers.  */
 CORE_ADDR
diff --git a/gdb/x86-64-tdep.c b/gdb/x86-64-tdep.c
index 50b0227..9cd9813 100644
--- a/gdb/x86-64-tdep.c
+++ b/gdb/x86-64-tdep.c
@@ -195,7 +195,7 @@ x86_64_register_convert_to_virtual (int regnum, struct type *type,
 				    char *from, char *to)
 {
   char buf[12];
-  DOUBLEST d;
+
   /* We only support floating-point values.  */
   if (TYPE_CODE (type) != TYPE_CODE_FLT)
     {
@@ -426,6 +426,8 @@ classify_argument (struct type *type,
 	      }
 	    }
 	    break;
+	  default:
+	    break;
 	  }
 	/* Final merger cleanup.  */
 	for (i = 0; i < words; i++)
@@ -488,6 +490,8 @@ classify_argument (struct type *type,
 	}
     case TYPE_CODE_VOID:
       return 0;
+    default: /* Avoid warning.  */
+      break;
     }
   internal_error (__FILE__, __LINE__,
 		  "classify_argument: unknown argument type");