* hppa-hpux-tdep.c: Update copyright notice and year.

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

diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c
index 279509cf87af38eb312d9b21114e3f1d5a8f7bac..1fc83867a4ce5e0aa928e4713beca8ad4b7e1c91 100644 (file)
--- a/gdb/mips-tdep.c
+++ b/gdb/mips-tdep.c
@@ -878,17 +878,10 @@ mips_fetch_instruction (CORE_ADDR addr)
 #define rtype_shamt(x) ((x >> 6) & 0x1f)
 #define rtype_funct(x) (x & 0x3f)
 
-static CORE_ADDR
-mips32_relative_offset (unsigned long inst)
+static LONGEST
+mips32_relative_offset (ULONGEST inst)
 {
-  long x;
-  x = itype_immediate (inst);
-  if (x & 0x8000)              /* sign bit set */
-    {
-      x |= 0xffff0000;         /* sign extension */
-    }
-  x = x << 2;
-  return x;
+  return ((itype_immediate (inst) ^ 0x8000) - 0x8000) << 2;
 }
 
 /* Determine whate to set a single step breakpoint while considering
@@ -2408,7 +2401,7 @@ mips_eabi_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
      than necessary for EABI, because the first few arguments are
      passed in registers, but that's OK.  */
   for (argnum = 0; argnum < nargs; argnum++)
-    len += align_up (TYPE_LENGTH (VALUE_TYPE (args[argnum])),
+    len += align_up (TYPE_LENGTH (value_type (args[argnum])),
                     mips_stack_argsize (gdbarch));
   sp -= align_up (len, 16);
 
@@ -2439,7 +2432,7 @@ mips_eabi_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
       char *val;
       char valbuf[MAX_REGISTER_SIZE];
       struct value *arg = args[argnum];
-      struct type *arg_type = check_typedef (VALUE_TYPE (arg));
+      struct type *arg_type = check_typedef (value_type (arg));
       int len = TYPE_LENGTH (arg_type);
       enum type_code typecode = TYPE_CODE (arg_type);
 
@@ -2691,7 +2684,7 @@ mips_n32n64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 
   /* Now make space on the stack for the args.  */
   for (argnum = 0; argnum < nargs; argnum++)
-    len += align_up (TYPE_LENGTH (VALUE_TYPE (args[argnum])),
+    len += align_up (TYPE_LENGTH (value_type (args[argnum])),
                     mips_stack_argsize (gdbarch));
   sp -= align_up (len, 16);
 
@@ -2721,7 +2714,7 @@ mips_n32n64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
     {
       char *val;
       struct value *arg = args[argnum];
-      struct type *arg_type = check_typedef (VALUE_TYPE (arg));
+      struct type *arg_type = check_typedef (value_type (arg));
       int len = TYPE_LENGTH (arg_type);
       enum type_code typecode = TYPE_CODE (arg_type);
 
@@ -3030,7 +3023,7 @@ mips_o32_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 
   /* Now make space on the stack for the args.  */
   for (argnum = 0; argnum < nargs; argnum++)
-    len += align_up (TYPE_LENGTH (VALUE_TYPE (args[argnum])),
+    len += align_up (TYPE_LENGTH (value_type (args[argnum])),
                     mips_stack_argsize (gdbarch));
   sp -= align_up (len, 16);
 
@@ -3061,7 +3054,7 @@ mips_o32_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
     {
       char *val;
       struct value *arg = args[argnum];
-      struct type *arg_type = check_typedef (VALUE_TYPE (arg));
+      struct type *arg_type = check_typedef (value_type (arg));
       int len = TYPE_LENGTH (arg_type);
       enum type_code typecode = TYPE_CODE (arg_type);
 
@@ -3484,7 +3477,7 @@ mips_o64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 
   /* Now make space on the stack for the args.  */
   for (argnum = 0; argnum < nargs; argnum++)
-    len += align_up (TYPE_LENGTH (VALUE_TYPE (args[argnum])),
+    len += align_up (TYPE_LENGTH (value_type (args[argnum])),
                     mips_stack_argsize (gdbarch));
   sp -= align_up (len, 16);
 
@@ -3515,7 +3508,7 @@ mips_o64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
     {
       char *val;
       struct value *arg = args[argnum];
-      struct type *arg_type = check_typedef (VALUE_TYPE (arg));
+      struct type *arg_type = check_typedef (value_type (arg));
       int len = TYPE_LENGTH (arg_type);
       enum type_code typecode = TYPE_CODE (arg_type);
 
@@ -4537,32 +4530,6 @@ mips_skip_trampoline_code (CORE_ADDR pc)
   return 0;                    /* not a stub */
 }
 
-/* Return non-zero if the PC is inside a return thunk (aka stub or
-   trampoline).  */
-
-static int
-mips_in_solib_return_trampoline (CORE_ADDR pc, char *name)
-{
-  CORE_ADDR start_addr;
-
-  /* Find the starting address of the function containing the PC.  */
-  if (find_pc_partial_function (pc, NULL, &start_addr, NULL) == 0)
-    return 0;
-
-  /* If the PC is in __mips16_ret_{d,s}f, this is a return stub.  */
-  if (strcmp (name, "__mips16_ret_sf") == 0
-      || strcmp (name, "__mips16_ret_df") == 0)
-    return 1;
-
-  /* If the PC is in __mips16_call_stub_{s,d}f_{0..10} but not at the start,
-     i.e. after the jal instruction, this is effectively a return stub.  */
-  if (strncmp (name, "__mips16_call_stub_", 19) == 0
-      && (name[19] == 's' || name[19] == 'd') && pc != start_addr)
-    return 1;
-
-  return 0;                    /* not a stub */
-}
-
 /* Convert a dbx stab register number (from `r' declaration) to a GDB
    [1 * NUM_REGS .. 2 * NUM_REGS) REGNUM.  */
 
@@ -5058,15 +5025,6 @@ mips_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 
   set_gdbarch_skip_trampoline_code (gdbarch, mips_skip_trampoline_code);
 
-  /* NOTE drow/2004-02-11: We overload the core solib trampoline code
-     to support MIPS16.  This is a bad thing.  Make sure not to do it
-     if we have an OS ABI that actually supports shared libraries, since
-     shared library support is more important.  If we have an OS someday
-     that supports both shared libraries and MIPS16, we'll have to find
-     a better place for these.  */
-  if (info.osabi == GDB_OSABI_UNKNOWN)
-    set_gdbarch_in_solib_return_trampoline (gdbarch, mips_in_solib_return_trampoline);
-
   set_gdbarch_single_step_through_delay (gdbarch, mips_single_step_through_delay);
 
   /* Hook in OS ABI-specific overrides, if they have been registered.  */