2002-05-11 19:22:27 +02:00
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/* Target-dependent code for the i387.
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2003-08-24 15:55:48 +02:00
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2004-02-28 21:43:51 +01:00
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Copyright 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
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2000-05-24 01:44:44 +02:00
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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2002-05-11 19:22:27 +02:00
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#ifndef I387_TDEP_H
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#define I387_TDEP_H
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2000-05-24 01:44:44 +02:00
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2003-04-12 Andrew Cagney <cagney@redhat.com>
* gdbarch.sh: Add missing opaque declarations.
* gdbarch.h: Regnerate.
* symtab.h: Add missing opaque declarations.
* value.h, target.h, symfile.h, stabsread.h: Ditto.
* x86-64-tdep.h, xmodem.h, monitor.h, typeprint.h: Ditto.
* srec.h, solib-svr4.h, source.h, inferior.h: Ditto.
* ser-unix.h, serial.h, remote-utils.h, gdbcore.h: Ditto.
* ppc-tdep.h, ocd.h, mips-tdep.h, gdbtypes.h: Ditto.
* buildsym.h, builtin-regs.h, linespec.h, language.h: Ditto.
* i387-tdep.h, gdbthread.h, event-top.h, gdb.h: Ditto.
* dwarf2cfi.h, doublest.h, disasm.h, cp-abi.h: Ditto.
* cli-out.h, c-lang.h, ax-gdb.h, arch-utils.h: Ditto.
* ada-lang.h, config/nm-lynx.h, config/nm-linux.h: Ditto.
* config/sparc/tm-sp64.h, config/rs6000/tm-rs6000.h: Ditto.
* config/pa/tm-hppah.h, config/m68k/tm-delta68.h: Ditto.
* cli/cli-setshow.h, cli/cli-script.h: Ditto.
2003-04-12 19:41:26 +02:00
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struct gdbarch;
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struct frame_info;
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2003-09-28 15:35:44 +02:00
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struct regcache;
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2003-06-15 13:01:46 +02:00
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struct type;
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2003-09-28 15:35:44 +02:00
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struct ui_file;
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2003-04-12 Andrew Cagney <cagney@redhat.com>
* gdbarch.sh: Add missing opaque declarations.
* gdbarch.h: Regnerate.
* symtab.h: Add missing opaque declarations.
* value.h, target.h, symfile.h, stabsread.h: Ditto.
* x86-64-tdep.h, xmodem.h, monitor.h, typeprint.h: Ditto.
* srec.h, solib-svr4.h, source.h, inferior.h: Ditto.
* ser-unix.h, serial.h, remote-utils.h, gdbcore.h: Ditto.
* ppc-tdep.h, ocd.h, mips-tdep.h, gdbtypes.h: Ditto.
* buildsym.h, builtin-regs.h, linespec.h, language.h: Ditto.
* i387-tdep.h, gdbthread.h, event-top.h, gdb.h: Ditto.
* dwarf2cfi.h, doublest.h, disasm.h, cp-abi.h: Ditto.
* cli-out.h, c-lang.h, ax-gdb.h, arch-utils.h: Ditto.
* ada-lang.h, config/nm-lynx.h, config/nm-linux.h: Ditto.
* config/sparc/tm-sp64.h, config/rs6000/tm-rs6000.h: Ditto.
* config/pa/tm-hppah.h, config/m68k/tm-delta68.h: Ditto.
* cli/cli-setshow.h, cli/cli-script.h: Ditto.
2003-04-12 19:41:26 +02:00
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* i386-tdep.h: Put opaque declarations in alphabetical
order. Remove spurious whitespace.
(struct gdbarch_tdep): add st0_regnum and mm0_regnum members.
(i386_sse_regnum_p, i386_mxcsr_regnum_p): Remove prototypes.
* i386-tdep.c (MM0_REGNUM): Remove define.
(i386_mmx_regnum_p): Add gdbarch argument.
(i386_sse_regnum_p, i386_mxcsr_regnum_p): Add gdbarch argument.
Rewrite using new macro definitions for FPU/SSE registers.
(i386_fp_regnum_p, i386_fpc_regnum_p): Rewrite using new macro
definitions from i387-tdep.h.
(i386_register_name): Update.
(i386_stab_reg_to_regnum, i386_dwarf_reg_to_regnum): Update to use
new macro definitions for FPU/SSE registers.
(i386_extract_return_value): Determine whether floating-point
registers are present by examining REGCACHE's architecture.
(i386_store_return_value): Likewise. Use I386_MAX_REGISTER_SIZE
instead of FPU_REG_RAW_SIZE. Use new macro definitions for
FPU/SSE registers.
(i386_register_type): Update.
(i386_mmx_regnum_to_fp_regnum): Rewrite using new macro
definitions for FPU registers. Use REGCACHE's architecture to
determine the appropriate register numbers.
(i386_pseudo_register_read, i386_pseudo_register_write,
i386_register_reggroup_p): Update.
(i386_gdbarch_init): Initialize TDEP->st0_regnum and
TDEP->mm0_regnum.
* i387-tdep.h (I387_FCTRL_REGNUM, I387_FSTAT_REGNUM,
I387_FTAG_REGNUM, I387_FISEG_REGNUM, I387_FIOFF_REGNUM,
I387_FOSEG_REGNUM, I387_FOOFF_REGNUM, I387_FOP_REGNUM,
I387_XMM0_REGNUM, I387_MXCSR_REGNUM): New defines.
(i387_supply_fsave, i387_fill_fsave, i387_supply_fxsave,
i387_fill_fxsave): Change type of fsave/fxsave argument from `char
*' to `void *'.
* i387-tdep.c (i387_print_float_info, fsave_offset, FSAVE_ADDR,
i387_supply_fsave, i387_fill_fsave, fxsave_offset, FXSAVE_ADDR,
i387_supply_fxsave, i387_fill_fxsave): Update to use new macro
definitions for FPU/SSE registers.
(FXSAVE_MXCSR_ADDR): New define.
* x86-64-tdep.c (x86_64_init_abi): Override TDEP->st0_regnum and
TDEP->mm0_regnum.
(I387_FISEG_REGNUM, I387_FOSEG_REGNUM): Remove defines.
(I387_ST0_REGNUM): Define.
2003-09-27 23:57:56 +02:00
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/* Because the number of general-purpose registers is different for
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AMD64, the floating-point registers and SSE registers get shifted.
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The following definitions are intended to help writing code that
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needs the register numbers of floating-point registers and SSE
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registers. In order to use these, one should provide a definition
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for I387_ST0_REGNUM, and possibly I387_NUM_XMM_REGS, preferably by
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using a local "#define" in the body of the function that uses this.
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Please "#undef" them before the end of the function. */
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#define I387_FCTRL_REGNUM (I387_ST0_REGNUM + 8)
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#define I387_FSTAT_REGNUM (I387_FCTRL_REGNUM + 1)
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#define I387_FTAG_REGNUM (I387_FCTRL_REGNUM + 2)
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#define I387_FISEG_REGNUM (I387_FCTRL_REGNUM + 3)
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#define I387_FIOFF_REGNUM (I387_FCTRL_REGNUM + 4)
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#define I387_FOSEG_REGNUM (I387_FCTRL_REGNUM + 5)
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#define I387_FOOFF_REGNUM (I387_FCTRL_REGNUM + 6)
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#define I387_FOP_REGNUM (I387_FCTRL_REGNUM + 7)
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#define I387_XMM0_REGNUM (I387_ST0_REGNUM + 16)
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#define I387_MXCSR_REGNUM (I387_XMM0_REGNUM + I387_NUM_XMM_REGS)
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2002-08-15 19:36:57 +02:00
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/* Print out the i387 floating point state. */
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extern void i387_print_float_info (struct gdbarch *gdbarch,
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struct ui_file *file,
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2002-08-16 02:01:59 +02:00
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struct frame_info *frame,
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const char *args);
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2002-08-15 19:36:57 +02:00
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2003-06-15 13:01:46 +02:00
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/* Read a value of type TYPE from register REGNUM in frame FRAME, and
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return its contents in TO. */
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extern void i387_register_to_value (struct frame_info *frame, int regnum,
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struct type *type, void *to);
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/* Write the contents FROM of a value of type TYPE into register
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REGNUM in frame FRAME. */
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extern void i387_value_to_register (struct frame_info *frame, int regnum,
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struct type *type, const void *from);
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2003-08-24 15:55:48 +02:00
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/* Size of the memory area use by the 'fsave' and 'fxsave'
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instructions. */
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#define I387_SIZEOF_FSAVE 108
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#define I387_SIZEOF_FXSAVE 512
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2003-06-15 13:01:46 +02:00
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2003-09-28 15:35:44 +02:00
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/* Fill register REGNUM in REGCACHE with the appropriate value from
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*FSAVE. This function masks off any of the reserved bits in
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*FSAVE. */
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2001-02-17 10:01:14 +01:00
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2003-09-28 15:35:44 +02:00
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extern void i387_supply_fsave (struct regcache *regcache, int regnum,
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const void *fsave);
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2000-05-24 01:44:44 +02:00
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2001-02-17 10:01:14 +01:00
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/* Fill register REGNUM (if it is a floating-point register) in *FSAVE
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2003-08-23 10:56:45 +02:00
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with the value in GDB's register cache. If REGNUM is -1, do this
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2000-05-24 01:44:44 +02:00
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for all registers. This function doesn't touch any of the reserved
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bits in *FSAVE. */
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* i386-tdep.h: Put opaque declarations in alphabetical
order. Remove spurious whitespace.
(struct gdbarch_tdep): add st0_regnum and mm0_regnum members.
(i386_sse_regnum_p, i386_mxcsr_regnum_p): Remove prototypes.
* i386-tdep.c (MM0_REGNUM): Remove define.
(i386_mmx_regnum_p): Add gdbarch argument.
(i386_sse_regnum_p, i386_mxcsr_regnum_p): Add gdbarch argument.
Rewrite using new macro definitions for FPU/SSE registers.
(i386_fp_regnum_p, i386_fpc_regnum_p): Rewrite using new macro
definitions from i387-tdep.h.
(i386_register_name): Update.
(i386_stab_reg_to_regnum, i386_dwarf_reg_to_regnum): Update to use
new macro definitions for FPU/SSE registers.
(i386_extract_return_value): Determine whether floating-point
registers are present by examining REGCACHE's architecture.
(i386_store_return_value): Likewise. Use I386_MAX_REGISTER_SIZE
instead of FPU_REG_RAW_SIZE. Use new macro definitions for
FPU/SSE registers.
(i386_register_type): Update.
(i386_mmx_regnum_to_fp_regnum): Rewrite using new macro
definitions for FPU registers. Use REGCACHE's architecture to
determine the appropriate register numbers.
(i386_pseudo_register_read, i386_pseudo_register_write,
i386_register_reggroup_p): Update.
(i386_gdbarch_init): Initialize TDEP->st0_regnum and
TDEP->mm0_regnum.
* i387-tdep.h (I387_FCTRL_REGNUM, I387_FSTAT_REGNUM,
I387_FTAG_REGNUM, I387_FISEG_REGNUM, I387_FIOFF_REGNUM,
I387_FOSEG_REGNUM, I387_FOOFF_REGNUM, I387_FOP_REGNUM,
I387_XMM0_REGNUM, I387_MXCSR_REGNUM): New defines.
(i387_supply_fsave, i387_fill_fsave, i387_supply_fxsave,
i387_fill_fxsave): Change type of fsave/fxsave argument from `char
*' to `void *'.
* i387-tdep.c (i387_print_float_info, fsave_offset, FSAVE_ADDR,
i387_supply_fsave, i387_fill_fsave, fxsave_offset, FXSAVE_ADDR,
i387_supply_fxsave, i387_fill_fxsave): Update to use new macro
definitions for FPU/SSE registers.
(FXSAVE_MXCSR_ADDR): New define.
* x86-64-tdep.c (x86_64_init_abi): Override TDEP->st0_regnum and
TDEP->mm0_regnum.
(I387_FISEG_REGNUM, I387_FOSEG_REGNUM): Remove defines.
(I387_ST0_REGNUM): Define.
2003-09-27 23:57:56 +02:00
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extern void i387_fill_fsave (void *fsave, int regnum);
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2000-08-10 16:54:51 +02:00
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2003-09-28 15:35:44 +02:00
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/* Fill register REGNUM in REGCACHE with the appropriate
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2003-08-23 10:56:45 +02:00
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floating-point or SSE register value from *FXSAVE. This function
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masks off any of the reserved bits in *FXSAVE. */
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2000-08-10 16:54:51 +02:00
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2003-09-28 15:35:44 +02:00
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extern void i387_supply_fxsave (struct regcache *regcache, int regnum,
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const void *fxsave);
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2000-08-10 16:54:51 +02:00
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2004-02-28 21:43:51 +01:00
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/* Fill register REGNUM (if it is a floating-point or SSE register) in
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*FXSAVE with the value from REGCACHE. If REGNUM is -1, do this for
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all registers. This function doesn't touch any of the reserved
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bits in *FXSAVE. */
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extern void i387_collect_fxsave (const struct regcache *regcache, int regnum,
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void *fxsave);
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2001-02-17 10:01:14 +01:00
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/* Fill register REGNUM (if it is a floating-point or SSE register) in
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2003-08-23 10:56:45 +02:00
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*FXSAVE with the value in GDB's register cache. If REGNUM is -1, do
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2000-08-10 16:54:51 +02:00
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this for all registers. This function doesn't touch any of the
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reserved bits in *FXSAVE. */
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* i386-tdep.h: Put opaque declarations in alphabetical
order. Remove spurious whitespace.
(struct gdbarch_tdep): add st0_regnum and mm0_regnum members.
(i386_sse_regnum_p, i386_mxcsr_regnum_p): Remove prototypes.
* i386-tdep.c (MM0_REGNUM): Remove define.
(i386_mmx_regnum_p): Add gdbarch argument.
(i386_sse_regnum_p, i386_mxcsr_regnum_p): Add gdbarch argument.
Rewrite using new macro definitions for FPU/SSE registers.
(i386_fp_regnum_p, i386_fpc_regnum_p): Rewrite using new macro
definitions from i387-tdep.h.
(i386_register_name): Update.
(i386_stab_reg_to_regnum, i386_dwarf_reg_to_regnum): Update to use
new macro definitions for FPU/SSE registers.
(i386_extract_return_value): Determine whether floating-point
registers are present by examining REGCACHE's architecture.
(i386_store_return_value): Likewise. Use I386_MAX_REGISTER_SIZE
instead of FPU_REG_RAW_SIZE. Use new macro definitions for
FPU/SSE registers.
(i386_register_type): Update.
(i386_mmx_regnum_to_fp_regnum): Rewrite using new macro
definitions for FPU registers. Use REGCACHE's architecture to
determine the appropriate register numbers.
(i386_pseudo_register_read, i386_pseudo_register_write,
i386_register_reggroup_p): Update.
(i386_gdbarch_init): Initialize TDEP->st0_regnum and
TDEP->mm0_regnum.
* i387-tdep.h (I387_FCTRL_REGNUM, I387_FSTAT_REGNUM,
I387_FTAG_REGNUM, I387_FISEG_REGNUM, I387_FIOFF_REGNUM,
I387_FOSEG_REGNUM, I387_FOOFF_REGNUM, I387_FOP_REGNUM,
I387_XMM0_REGNUM, I387_MXCSR_REGNUM): New defines.
(i387_supply_fsave, i387_fill_fsave, i387_supply_fxsave,
i387_fill_fxsave): Change type of fsave/fxsave argument from `char
*' to `void *'.
* i387-tdep.c (i387_print_float_info, fsave_offset, FSAVE_ADDR,
i387_supply_fsave, i387_fill_fsave, fxsave_offset, FXSAVE_ADDR,
i387_supply_fxsave, i387_fill_fxsave): Update to use new macro
definitions for FPU/SSE registers.
(FXSAVE_MXCSR_ADDR): New define.
* x86-64-tdep.c (x86_64_init_abi): Override TDEP->st0_regnum and
TDEP->mm0_regnum.
(I387_FISEG_REGNUM, I387_FOSEG_REGNUM): Remove defines.
(I387_ST0_REGNUM): Define.
2003-09-27 23:57:56 +02:00
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extern void i387_fill_fxsave (void *fxsave, int regnum);
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2000-05-24 01:44:44 +02:00
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2003-11-27 21:35:38 +01:00
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/* Prepare the FPU stack in REGCACHE for a function return. */
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extern void i387_return_value (struct gdbarch *gdbarch,
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struct regcache *regcache);
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2002-05-11 19:22:27 +02:00
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#endif /* i387-tdep.h */
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