* Makefile.in: Sort dependencies.

[binutils.git] / gdb / i387-tdep.h

diff --git a/gdb/i387-tdep.h b/gdb/i387-tdep.h
index 84c31ec6108ff1270e7527339f116c9ba935623f..12b16d25ee37d266d3ec6416d9ca8f0042743b47 100644 (file)
--- a/gdb/i387-tdep.h
+++ b/gdb/i387-tdep.h
@@ -1,5 +1,6 @@
 /* Target-dependent code for the i387.
-   Copyright 2000, 2001 Free Software Foundation, Inc.
+
+   Copyright (C) 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -15,16 +16,38 @@
 
    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., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.  */
 
 #ifndef I387_TDEP_H
 #define I387_TDEP_H
 
 struct gdbarch;
-struct ui_file;
 struct frame_info;
+struct regcache;
 struct type;
+struct ui_file;
+
+/* Because the number of general-purpose registers is different for
+   AMD64, the floating-point registers and SSE registers get shifted.
+   The following definitions are intended to help writing code that
+   needs the register numbers of floating-point registers and SSE
+   registers.  In order to use these, one should provide a definition
+   for I387_ST0_REGNUM, and possibly I387_NUM_XMM_REGS, preferably by
+   using a local "#define" in the body of the function that uses this.
+   Please "#undef" them before the end of the function.  */
+
+#define I387_FCTRL_REGNUM      (I387_ST0_REGNUM + 8)
+#define I387_FSTAT_REGNUM      (I387_FCTRL_REGNUM + 1)
+#define I387_FTAG_REGNUM       (I387_FCTRL_REGNUM + 2)
+#define I387_FISEG_REGNUM      (I387_FCTRL_REGNUM + 3)
+#define I387_FIOFF_REGNUM      (I387_FCTRL_REGNUM + 4)
+#define I387_FOSEG_REGNUM      (I387_FCTRL_REGNUM + 5)
+#define I387_FOOFF_REGNUM      (I387_FCTRL_REGNUM + 6)
+#define I387_FOP_REGNUM                (I387_FCTRL_REGNUM + 7)
+#define I387_XMM0_REGNUM       (I387_ST0_REGNUM + 16)
+#define I387_MXCSR_REGNUM      (I387_XMM0_REGNUM + I387_NUM_XMM_REGS)
+\f
 
 /* Print out the i387 floating point state.  */
 
@@ -37,38 +60,67 @@ extern void i387_print_float_info (struct gdbarch *gdbarch,
    return its contents in TO.  */
 
 extern void i387_register_to_value (struct frame_info *frame, int regnum,
-                                   struct type *type, void *to);
+                                   struct type *type, gdb_byte *to);
 
 /* Write the contents FROM of a value of type TYPE into register
    REGNUM in frame FRAME.  */
 
 extern void i387_value_to_register (struct frame_info *frame, int regnum,
-                                   struct type *type, const void *from);
+                                   struct type *type, const gdb_byte *from);
+\f
 
-/* Fill register REGNUM in GDB's register cache with the appropriate
-   value from *FSAVE.  This function masks off any of the reserved
-   bits in *FSAVE.  */
+/* Size of the memory area use by the 'fsave' and 'fxsave'
+   instructions.  */
+#define I387_SIZEOF_FSAVE      108
+#define I387_SIZEOF_FXSAVE     512
+
+/* Fill register REGNUM in REGCACHE with the appropriate value from
+   *FSAVE.  This function masks off any of the reserved bits in
+   *FSAVE.  */
+
+extern void i387_supply_fsave (struct regcache *regcache, int regnum,
+                              const void *fsave);
 
-extern void i387_supply_fsave (const char *fsave, int regnum);
+/* Fill register REGNUM (if it is a floating-point register) in *FSAVE
+   with the value from REGCACHE.  If REGNUM is -1, do this for all
+   registers.  This function doesn't touch any of the reserved bits in
+   *FSAVE.  */
+
+extern void i387_collect_fsave (const struct regcache *regcache, int regnum,
+                               void *fsave);
 
 /* 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.  */
 
-extern void i387_fill_fsave (char *fsave, int regnum);
+extern void i387_fill_fsave (void *fsave, int regnum);
 
-/* Fill register REGNUM in GDB's register cache with the appropriate
+/* Fill register REGNUM in REGCACHE with the appropriate
    floating-point or SSE register value from *FXSAVE.  This function
    masks off any of the reserved bits in *FXSAVE.  */
 
-extern void i387_supply_fxsave (const char *fxsave, int regnum);
+extern void i387_supply_fxsave (struct regcache *regcache, int regnum,
+                               const void *fxsave);
+
+/* Fill register REGNUM (if it is a floating-point or SSE register) in
+   *FXSAVE with the value from REGCACHE.  If REGNUM is -1, do this for
+   all registers.  This function doesn't touch any of the reserved
+   bits in *FXSAVE.  */
+
+extern void i387_collect_fxsave (const struct regcache *regcache, int regnum,
+                                void *fxsave);
 
 /* 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.  */
 
-extern void i387_fill_fxsave (char *fxsave, int regnum);
+extern void i387_fill_fxsave (void *fxsave, int regnum);
+
+/* Prepare the FPU stack in REGCACHE for a function return.  */
+
+extern void i387_return_value (struct gdbarch *gdbarch,
+                              struct regcache *regcache);
 
 #endif /* i387-tdep.h */