X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=gdb%2Fi387-tdep.h;h=a6bd0c50869536c606825562ae31ef305e3d2160;hb=a9762ec78a53fbe9209fe1654db42df0cd328d50;hp=654b4a5a2a7fb82b1030a9e6c272e5bcc698e096;hpb=2de139ba84480ec495470c05bab7de61927fbc41;p=thirdparty%2Fbinutils-gdb.git diff --git a/gdb/i387-tdep.h b/gdb/i387-tdep.h index 654b4a5a2a7..a6bd0c50869 100644 --- a/gdb/i387-tdep.h +++ b/gdb/i387-tdep.h @@ -1,12 +1,13 @@ /* Target-dependent code for the i387. - Copyright 2000, 2001, 2002, 2003 Free Software Foundation, Inc. + Copyright (C) 2000, 2001, 2002, 2003, 2004, 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 - 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, @@ -15,17 +16,37 @@ 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., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ + along with this program. If not, see . */ #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) + /* Print out the i387 floating point state. */ @@ -38,13 +59,13 @@ 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); /* Size of the memory area use by the 'fsave' and 'fxsave' @@ -52,30 +73,39 @@ extern void i387_value_to_register (struct frame_info *frame, int regnum, #define I387_SIZEOF_FSAVE 108 #define I387_SIZEOF_FXSAVE 512 -/* 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. */ +/* 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 (const char *fsave, int regnum); +extern void i387_supply_fsave (struct regcache *regcache, int regnum, + const 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. */ + 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_fill_fsave (char *fsave, int regnum); +extern void i387_collect_fsave (const struct regcache *regcache, int regnum, + void *fsave); -/* 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 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. */ + *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); + +/* Prepare the FPU stack in REGCACHE for a function return. */ -extern void i387_fill_fxsave (char *fxsave, int regnum); +extern void i387_return_value (struct gdbarch *gdbarch, + struct regcache *regcache); #endif /* i387-tdep.h */