*** empty log message ***

[deliverable/binutils-gdb.git] / gdb / i387-tdep.c

diff --git a/gdb/i387-tdep.c b/gdb/i387-tdep.c
index 6315899c139fce256ebaa897916f5a1b475bec1f..a940e88b6a9c19a72e20b8439cad4f05bba25b14 100644 (file)
--- a/gdb/i387-tdep.c
+++ b/gdb/i387-tdep.c
@@ -1,13 +1,13 @@
 /* Intel 387 floating point stuff.
 
 /* Intel 387 floating point stuff.
 

-   Copyright (C) 1988, 1989, 1991, 1992, 1993, 1994, 1998, 1999, 2000,
-   2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+   Copyright (C) 1988, 1989, 1991, 1992, 1993, 1994, 1998, 1999, 2000, 2001,
+   2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.

 
    This file is part of GDB.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
 
    This file is part of GDB.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or

    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,


@@ -16,9 +16,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License

-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

 
 #include "defs.h"
 #include "doublest.h"
 
 #include "defs.h"
 #include "doublest.h"


@@ -287,6 +285,25 @@ i387_print_float_info (struct gdbarch *gdbarch, struct ui_file *file,
 }
 \f
 
 }
 \f
 

+/* Return nonzero if a value of type TYPE stored in register REGNUM
+   needs any special handling.  */
+
+int
+i387_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type)
+{
+  if (i386_fp_regnum_p (regnum))
+    {
+      /* Floating point registers must be converted unless we are
+        accessing them in their hardware type.  */
+      if (type == builtin_type_i387_ext)
+       return 0;
+      else
+       return 1;
+    }
+
+  return 0;
+}
+

 /* Read a value of type TYPE from register REGNUM in frame FRAME, and
    return its contents in TO.  */
 
 /* Read a value of type TYPE from register REGNUM in frame FRAME, and
    return its contents in TO.  */
 


@@ -306,8 +323,7 @@ i387_register_to_value (struct frame_info *frame, int regnum,
       return;
     }
 
       return;
     }
 

-  /* Convert to TYPE.  This should be a no-op if TYPE is equivalent to
-     the extended floating-point format used by the FPU.  */
+  /* Convert to TYPE.  */

   get_frame_register (frame, regnum, from);
   convert_typed_floating (from, builtin_type_i387_ext, to, type);
 }
   get_frame_register (frame, regnum, from);
   convert_typed_floating (from, builtin_type_i387_ext, to, type);
 }


@@ -331,8 +347,7 @@ i387_value_to_register (struct frame_info *frame, int regnum,
       return;
     }
 
       return;
     }
 

-  /* Convert from TYPE.  This should be a no-op if TYPE is equivalent
-     to the extended floating-point format used by the FPU.  */
+  /* Convert from TYPE.  */

   convert_typed_floating (from, type, to, builtin_type_i387_ext);
   put_frame_register (frame, regnum, to);
 }
   convert_typed_floating (from, type, to, builtin_type_i387_ext);
   put_frame_register (frame, regnum, to);
 }


@@ -437,7 +452,7 @@ i387_supply_fsave (struct regcache *regcache, int regnum, const void *fsave)
 void
 i387_collect_fsave (const struct regcache *regcache, int regnum, void *fsave)
 {
 void
 i387_collect_fsave (const struct regcache *regcache, int regnum, void *fsave)
 {

-  struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+  struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache));

   gdb_byte *regs = fsave;
   int i;
 
   gdb_byte *regs = fsave;
   int i;
 


@@ -473,17 +488,6 @@ i387_collect_fsave (const struct regcache *regcache, int regnum, void *fsave)
       }
 #undef I387_ST0_REGNUM
 }
       }
 #undef I387_ST0_REGNUM
 }

-
-/* Fill register REGNUM (if it is a floating-point register) in *FSAVE
-   with the value in GDB's register cache.  If REGNUM is -1, do this
-   for all registers.  This function doesn't touch any of the reserved
-   bits in *FSAVE.  */
-
-void
-i387_fill_fsave (void *fsave, int regnum)
-{
-  i387_collect_fsave (current_regcache, regnum, fsave);
-}

 \f
 
 /* At fxsave_offset[REGNUM] you'll find the offset to the location in
 \f
 
 /* At fxsave_offset[REGNUM] you'll find the offset to the location in


@@ -636,7 +640,7 @@ i387_supply_fxsave (struct regcache *regcache, int regnum, const void *fxsave)
 void
 i387_collect_fxsave (const struct regcache *regcache, int regnum, void *fxsave)
 {
 void
 i387_collect_fxsave (const struct regcache *regcache, int regnum, void *fxsave)
 {

-  struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+  struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache));

   gdb_byte *regs = fxsave;
   int i;
 
   gdb_byte *regs = fxsave;
   int i;
 


@@ -701,17 +705,6 @@ i387_collect_fxsave (const struct regcache *regcache, int regnum, void *fxsave)
 #undef I387_NUM_XMM_REGS
 }
 
 #undef I387_NUM_XMM_REGS
 }
 

-/* Fill register REGNUM (if it is a floating-point or SSE register) in
-   *FXSAVE with the value in GDB's register cache.  If REGNUM is -1, do
-   this for all registers.  This function doesn't touch any of the
-   reserved bits in *FXSAVE.  */
-
-void
-i387_fill_fxsave (void *fxsave, int regnum)
-{
-  i387_collect_fxsave (current_regcache, regnum, fxsave);
-}
-

 /* Recreate the FTW (tag word) valid bits from the 80-bit FP data in
    *RAW.  */
 
 /* Recreate the FTW (tag word) valid bits from the 80-bit FP data in
    *RAW.  */