2002-05-10 Elena Zannoni <ezannoni@redhat.com>

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

diff --git a/gdb/cris-tdep.c b/gdb/cris-tdep.c
index a1344304de9b02c5f1f8951b98deb7fd6e1e73eb..e85ac129f331561fb59e0d3fe43046f2ef8f1d67 100644 (file)
--- a/gdb/cris-tdep.c
+++ b/gdb/cris-tdep.c
@@ -3625,11 +3625,13 @@ static struct core_fns cris_elf_core_fns =
 };
 
 /* Fetch (and possibly build) an appropriate link_map_offsets
-   structure for native Linux/CRIS targets using the struct offsets
-   defined in link.h (but without actual reference to that file).
+   structure for native GNU/Linux CRIS targets using the struct
+   offsets defined in link.h (but without actual reference to that
+   file).
 
-   This makes it possible to access Linux/CRIS shared libraries from a
-   GDB that was not built on an Linux/CRIS host (for cross debugging).
+   This makes it possible to access GNU/Linux CRIS shared libraries
+   from a GDB that was not built on an GNU/Linux CRIS host (for cross
+   debugging).
 
    See gdb/solib-svr4.h for an explanation of these fields.  */
 
@@ -3875,19 +3877,19 @@ _initialize_cris_tdep (void)
   c = add_set_cmd ("cris-version", class_support, var_integer, 
                    (char *) &usr_cmd_cris_version, 
                    "Set the current CRIS version.", &setlist);
-  c->function.sfunc = cris_version_update;
+  set_cmd_sfunc (c, cris_version_update);
   add_show_from_set (c, &showlist);
   
   c = add_set_enum_cmd ("cris-mode", class_support, cris_mode_enums, 
                         &usr_cmd_cris_mode, 
                         "Set the current CRIS mode.", &setlist);
-  c->function.sfunc = cris_mode_update;
+  set_cmd_sfunc (c, cris_mode_update);
   add_show_from_set (c, &showlist);
 
   c = add_set_enum_cmd ("cris-abi", class_support, cris_abi_enums, 
                         &usr_cmd_cris_abi, 
                         "Set the current CRIS ABI version.", &setlist);
-  c->function.sfunc = cris_abi_update;
+  set_cmd_sfunc (c, cris_abi_update);
   add_show_from_set (c, &showlist);
 
   c = add_cmd ("cris-fpless-backtrace", class_support, cris_fpless_backtrace, 
@@ -3923,8 +3925,17 @@ cris_version_update (char *ignore_args, int from_tty,
 {
   struct gdbarch_info info;
 
+  /* NOTE: cagney/2002-03-17: The add_show_from_set() function clones
+     the set command passed as a parameter.  The clone operation will
+     include (BUG?) any ``set'' command callback, if present.
+     Commands like ``info set'' call all the ``show'' command
+     callbacks.  Unfortunatly, for ``show'' commands cloned from
+     ``set'', this includes callbacks belonging to ``set'' commands.
+     Making this worse, this only occures if add_show_from_set() is
+     called after add_cmd_sfunc() (BUG?).  */
+
   /* From here on, trust the user's CRIS version setting.  */
-  if (c->type == set_cmd)
+  if (cmd_type (c) == set_cmd)
     {
       usr_cmd_cris_version_valid = 1;
   
@@ -3941,8 +3952,17 @@ cris_mode_update (char *ignore_args, int from_tty,
 {
   struct gdbarch_info info;
   
+  /* NOTE: cagney/2002-03-17: The add_show_from_set() function clones
+     the set command passed as a parameter.  The clone operation will
+     include (BUG?) any ``set'' command callback, if present.
+     Commands like ``info set'' call all the ``show'' command
+     callbacks.  Unfortunatly, for ``show'' commands cloned from
+     ``set'', this includes callbacks belonging to ``set'' commands.
+     Making this worse, this only occures if add_show_from_set() is
+     called after add_cmd_sfunc() (BUG?).  */
+
   /* From here on, trust the user's CRIS mode setting.  */
-  if (c->type == set_cmd)
+  if (cmd_type (c) == set_cmd)
     {
       usr_cmd_cris_mode_valid = 1;
   
@@ -3959,8 +3979,17 @@ cris_abi_update (char *ignore_args, int from_tty,
 {
   struct gdbarch_info info;
   
+  /* NOTE: cagney/2002-03-17: The add_show_from_set() function clones
+     the set command passed as a parameter.  The clone operation will
+     include (BUG?) any ``set'' command callback, if present.
+     Commands like ``info set'' call all the ``show'' command
+     callbacks.  Unfortunatly, for ``show'' commands cloned from
+     ``set'', this includes callbacks belonging to ``set'' commands.
+     Making this worse, this only occures if add_show_from_set() is
+     called after add_cmd_sfunc() (BUG?).  */
+
   /* From here on, trust the user's CRIS ABI setting.  */
-  if (c->type == set_cmd)
+  if (cmd_type (c) == set_cmd)
     {
       usr_cmd_cris_abi_valid = 1;
   
@@ -4071,17 +4100,19 @@ cris_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
           cris_abi = CRIS_ABI_V2;
         }
     }
-  else if (gdbarch_tdep (current_gdbarch))
+  else if (arches != NULL)
     {
-      /* No bfd available.  Stick with whatever ABI we're currently using.  
-         (This is to avoid changing the ABI when the user updates the 
-         architecture with the 'set cris-version' command.)  */
-      cris_abi = gdbarch_tdep (current_gdbarch)->cris_abi;
+      /* No bfd available.  Stick with the ABI from the most recently
+         selected architecture of this same family (the head of arches
+         always points to this).  (This is to avoid changing the ABI
+         when the user updates the architecture with the 'set
+         cris-version' command.)  */
+      cris_abi = gdbarch_tdep (arches->gdbarch)->cris_abi;
     }
   else
     {
-      /* No bfd, and no current architecture available.  Assume it's the 
-         new ABI.  */
+      /* No bfd, and no previously selected architecture available.
+         Assume it's the new ABI.  */
       cris_abi = CRIS_ABI_V2;
     }
 
@@ -4154,9 +4185,6 @@ cris_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
      which means we have to set this explicitly.  */
   set_gdbarch_long_double_bit (gdbarch, 64);
     
-  /* Floating point is IEEE compatible.  */
-  set_gdbarch_ieee_float (gdbarch, 1);
-
   /* There are 32 registers (some of which may not be implemented).  */
   set_gdbarch_num_regs (gdbarch, 32);
   set_gdbarch_sp_regnum (gdbarch, 14);