Add basic support for AArch64.

[deliverable/binutils-gdb.git] / gdb / s390-tdep.c

diff --git a/gdb/s390-tdep.c b/gdb/s390-tdep.c
index f03c13ae292ebacd40eb1fb93624427096f88910..50f88771f00f59a76d54dd6057655b382e00043e 100644 (file)
--- a/gdb/s390-tdep.c
+++ b/gdb/s390-tdep.c
@@ -1,6 +1,6 @@
 /* Target-dependent code for GDB, the GNU debugger.
 
-   Copyright (C) 2001-2012 Free Software Foundation, Inc.
+   Copyright (C) 2001-2013 Free Software Foundation, Inc.
 
    Contributed by D.J. Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
    for IBM Deutschland Entwicklung GmbH, IBM Corporation.
@@ -376,9 +376,11 @@ s390_value_from_register (struct type *type, int regnum,
                          struct frame_info *frame)
 {
   struct value *value = default_value_from_register (type, regnum, frame);
-  int len = TYPE_LENGTH (check_typedef (type));
 
-  if (regnum >= S390_F0_REGNUM && regnum <= S390_F15_REGNUM && len < 8)
+  check_typedef (type);
+
+  if (regnum >= S390_F0_REGNUM && regnum <= S390_F15_REGNUM
+      && TYPE_LENGTH (type) < 8)
     set_value_offset (value, 0);
 
   return value;
@@ -1166,7 +1168,6 @@ s390_load (struct s390_prologue_data *data,
           
 {
   pv_t addr = s390_addr (data, d2, x2, b2);
-  pv_t offset;
 
   /* If it's a load from an in-line constant pool, then we can
      simulate that, under the assumption that the code isn't
@@ -1460,13 +1461,14 @@ s390_analyze_prologue (struct gdbarch *gdbarch,
        break;
 
       else
-        /* An instruction we don't know how to simulate.  The only
-           safe thing to do would be to set every value we're tracking
-           to 'unknown'.  Instead, we'll be optimistic: we assume that
-          we *can* interpret every instruction that the compiler uses
-          to manipulate any of the data we're interested in here --
-          then we can just ignore anything else.  */
-        ;
+       {
+         /* An instruction we don't know how to simulate.  The only
+            safe thing to do would be to set every value we're tracking
+            to 'unknown'.  Instead, we'll be optimistic: we assume that
+            we *can* interpret every instruction that the compiler uses
+            to manipulate any of the data we're interested in here --
+            then we can just ignore anything else.  */
+       }
 
       /* Record the address after the last instruction that changed
          the FP, SP, or backlink.  Ignore instructions that changed
@@ -2490,8 +2492,7 @@ is_power_of_two (unsigned int n)
 static int
 s390_function_arg_pass_by_reference (struct type *type)
 {
-  unsigned length = TYPE_LENGTH (type);
-  if (length > 8)
+  if (TYPE_LENGTH (type) > 8)
     return 1;
 
   return (is_struct_like (type) && !is_power_of_two (TYPE_LENGTH (type)))
@@ -2504,8 +2505,7 @@ s390_function_arg_pass_by_reference (struct type *type)
 static int
 s390_function_arg_float (struct type *type)
 {
-  unsigned length = TYPE_LENGTH (type);
-  if (length > 8)
+  if (TYPE_LENGTH (type) > 8)
     return 0;
 
   return is_float_like (type);
@@ -2516,13 +2516,12 @@ s390_function_arg_float (struct type *type)
 static int
 s390_function_arg_integer (struct type *type)
 {
-  unsigned length = TYPE_LENGTH (type);
-  if (length > 8)
+  if (TYPE_LENGTH (type) > 8)
     return 0;
 
    return is_integer_like (type)
          || is_pointer_like (type)
-         || (is_struct_like (type) && is_power_of_two (length));
+         || (is_struct_like (type) && is_power_of_two (TYPE_LENGTH (type)));
 }
 
 /* Return ARG, a `SIMPLE_ARG', sign-extended or zero-extended to a full
@@ -2617,11 +2616,10 @@ s390_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
     {
       struct value *arg = args[i];
       struct type *type = check_typedef (value_type (arg));
-      unsigned length = TYPE_LENGTH (type);
 
       if (s390_function_arg_pass_by_reference (type))
         {
-          sp -= length;
+          sp -= TYPE_LENGTH (type);
           sp = align_down (sp, alignment_of (type));
           copy_addr[i] = sp;
         }
@@ -2800,8 +2798,7 @@ s390_frame_align (struct gdbarch *gdbarch, CORE_ADDR addr)
 static enum return_value_convention
 s390_return_value_convention (struct gdbarch *gdbarch, struct type *type)
 {
-  int length = TYPE_LENGTH (type);
-  if (length > 8)
+  if (TYPE_LENGTH (type) > 8)
     return RETURN_VALUE_STRUCT_CONVENTION;
 
   switch (TYPE_CODE (type))