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/* Target-dependent code for GDB, the GNU debugger.
Copyright 2000, 2001, 2002, 2003, 2004 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
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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. */
#ifndef PPC_TDEP_H
#define PPC_TDEP_H
struct gdbarch;
struct frame_info;
struct value;
struct regcache;
struct type;
/* From ppc-linux-tdep.c... */
enum return_value_convention ppc_sysv_abi_return_value (struct gdbarch *gdbarch,
struct type *valtype,
struct regcache *regcache,
void *readbuf,
const void *writebuf);
enum return_value_convention ppc_sysv_abi_broken_return_value (struct gdbarch *gdbarch,
struct type *valtype,
struct regcache *regcache,
void *readbuf,
const void *writebuf);
CORE_ADDR ppc_sysv_abi_push_dummy_call (struct gdbarch *gdbarch,
struct value *function,
struct regcache *regcache,
CORE_ADDR bp_addr, int nargs,
struct value **args, CORE_ADDR sp,
int struct_return,
CORE_ADDR struct_addr);
CORE_ADDR ppc64_sysv_abi_push_dummy_call (struct gdbarch *gdbarch,
struct value *function,
struct regcache *regcache,
CORE_ADDR bp_addr, int nargs,
struct value **args, CORE_ADDR sp,
int struct_return,
CORE_ADDR struct_addr);
CORE_ADDR ppc64_sysv_abi_adjust_breakpoint_address (struct gdbarch *gdbarch,
CORE_ADDR bpaddr);
int ppc_linux_memory_remove_breakpoint (CORE_ADDR addr, char *contents_cache);
struct link_map_offsets *ppc_linux_svr4_fetch_link_map_offsets (void);
void ppc_linux_supply_gregset (struct regcache *regcache,
int regnum, const void *gregs, size_t size,
int wordsize);
void ppc_linux_supply_fpregset (const struct regset *regset,
struct regcache *regcache,
int regnum, const void *gregs, size_t size);
enum return_value_convention ppc64_sysv_abi_return_value (struct gdbarch *gdbarch,
struct type *valtype,
struct regcache *regcache,
void *readbuf,
const void *writebuf);
/* From rs6000-tdep.c... */
int altivec_register_p (int regno);
int spe_register_p (int regno);
/* Return non-zero if the architecture described by GDBARCH has
floating-point registers (f0 --- f31 and fpscr). */
int ppc_floating_point_unit_p (struct gdbarch *gdbarch);
/* Register set description. */
struct ppc_reg_offsets
{
/* General-purpose registers. */
int r0_offset;
int pc_offset;
int ps_offset;
int cr_offset;
int lr_offset;
int ctr_offset;
int xer_offset;
int mq_offset;
/* Floating-point registers. */
int f0_offset;
int fpscr_offset;
/* AltiVec registers. */
int vr0_offset;
int vscr_offset;
int vrsave_offset;
};
/* Supply register REGNUM in the general-purpose register set REGSET
from the buffer specified by GREGS and LEN to register cache
REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
extern void ppc_supply_gregset (const struct regset *regset,
struct regcache *regcache,
int regnum, const void *gregs, size_t len);
/* Supply register REGNUM in the floating-point register set REGSET
from the buffer specified by FPREGS and LEN to register cache
REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
extern void ppc_supply_fpregset (const struct regset *regset,
struct regcache *regcache,
int regnum, const void *fpregs, size_t len);
/* Collect register REGNUM in the general-purpose register set
REGSET. from register cache REGCACHE into the buffer specified by
GREGS and LEN. If REGNUM is -1, do this for all registers in
REGSET. */
extern void ppc_collect_gregset (const struct regset *regset,
const struct regcache *regcache,
int regnum, void *gregs, size_t len);
/* Collect register REGNUM in the floating-point register set
REGSET. from register cache REGCACHE into the buffer specified by
FPREGS and LEN. If REGNUM is -1, do this for all registers in
REGSET. */
extern void ppc_collect_fpregset (const struct regset *regset,
const struct regcache *regcache,
int regnum, void *fpregs, size_t len);
/* Private data that this module attaches to struct gdbarch. */
struct gdbarch_tdep
{
int wordsize; /* size in bytes of fixed-point word */
const struct reg *regs; /* from current variant */
int ppc_gp0_regnum; /* GPR register 0 */
int ppc_gprs_pseudo_p; /* non-zero if GPRs are pseudo-registers */
int ppc_toc_regnum; /* TOC register */
int ppc_ps_regnum; /* Processor (or machine) status (%msr) */
int ppc_cr_regnum; /* Condition register */
int ppc_lr_regnum; /* Link register */
int ppc_ctr_regnum; /* Count register */
int ppc_xer_regnum; /* Integer exception register */
/* On PPC and RS6000 variants that have no floating-point
registers, the next two members will be -1. */
int ppc_fp0_regnum; /* floating-point register 0 */
int ppc_fpscr_regnum; /* Floating point status and condition
register */
int ppc_mq_regnum; /* Multiply/Divide extension register */
int ppc_vr0_regnum; /* First AltiVec register */
int ppc_vrsave_regnum; /* Last AltiVec register */
int ppc_ev0_regnum; /* First ev register */
int ppc_ev31_regnum; /* Last ev register */
int ppc_acc_regnum; /* SPE 'acc' register */
int ppc_spefscr_regnum; /* SPE 'spefscr' register */
int lr_frame_offset; /* Offset to ABI specific location where
link register is saved. */
};
/* Constants for register set sizes. */
enum
{
ppc_num_gprs = 32, /* 32 general-purpose registers */
ppc_num_fprs = 32 /* 32 floating-point registers */
};
#endif
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