gdb/ppc-tdep.h

   1 /* Target-dependent code for GDB, the GNU debugger.
   2
   3    Copyright 2000, 2001, 2002, 2003, 2004 Free Software Foundation,
   4    Inc.
   5
   6    This file is part of GDB.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 59 Temple Place - Suite 330,
  21    Boston, MA 02111-1307, USA.  */
  22
  23 #ifndef PPC_TDEP_H
  24 #define PPC_TDEP_H
  25
  26 struct gdbarch;
  27 struct frame_info;
  28 struct value;
  29 struct regcache;
  30 struct type;
  31
  32 /* From ppc-linux-tdep.c... */
  33 CORE_ADDR ppc_linux_frame_saved_pc (struct frame_info *fi);
  34 void ppc_linux_init_extra_frame_info (int fromleaf, struct frame_info *);
  35 int ppc_linux_frameless_function_invocation (struct frame_info *);
  36 void ppc_linux_frame_init_saved_regs (struct frame_info *);
  37 CORE_ADDR ppc_linux_frame_chain (struct frame_info *);
  38 enum return_value_convention ppc_sysv_abi_return_value (struct gdbarch *gdbarch,
  39                                                         struct type *valtype,
  40                                                         struct regcache *regcache,
  41                                                         void *readbuf,
  42                                                         const void *writebuf);
  43 enum return_value_convention ppc_sysv_abi_broken_return_value (struct gdbarch *gdbarch,
  44                                                                struct type *valtype,
  45                                                                struct regcache *regcache,
  46                                                                void *readbuf,
  47                                                                const void *writebuf);
  48 CORE_ADDR ppc_sysv_abi_push_dummy_call (struct gdbarch *gdbarch,
  49                                         CORE_ADDR func_addr,
  50                                         struct regcache *regcache,
  51                                         CORE_ADDR bp_addr, int nargs,
  52                                         struct value **args, CORE_ADDR sp,
  53                                         int struct_return,
  54                                         CORE_ADDR struct_addr);
  55 CORE_ADDR ppc64_sysv_abi_push_dummy_call (struct gdbarch *gdbarch,
  56                                           CORE_ADDR func_addr,
  57                                           struct regcache *regcache,
  58                                           CORE_ADDR bp_addr, int nargs,
  59                                           struct value **args, CORE_ADDR sp,
  60                                           int struct_return,
  61                                           CORE_ADDR struct_addr);
  62 CORE_ADDR ppc64_sysv_abi_adjust_breakpoint_address (struct gdbarch *gdbarch,
  63                                                     CORE_ADDR bpaddr);
  64 int ppc_linux_memory_remove_breakpoint (CORE_ADDR addr, char *contents_cache);
  65 struct link_map_offsets *ppc_linux_svr4_fetch_link_map_offsets (void);
  66 void ppc_linux_supply_gregset (struct regcache *regcache,
  67                                int regnum, const void *gregs, size_t size,
  68                                int wordsize);
  69 void ppc_linux_supply_fpregset (const struct regset *regset,
  70                                 struct regcache *regcache,
  71                                 int regnum, const void *gregs, size_t size);
  72
  73 enum return_value_convention ppc64_sysv_abi_return_value (struct gdbarch *gdbarch,
  74                                                           struct type *valtype,
  75                                                           struct regcache *regcache,
  76                                                           void *readbuf,
  77                                                           const void *writebuf);
  78
  79 /* From rs6000-tdep.c... */
  80 CORE_ADDR rs6000_frame_saved_pc (struct frame_info *fi);
  81 void rs6000_init_extra_frame_info (int fromleaf, struct frame_info *);
  82 int rs6000_frameless_function_invocation (struct frame_info *);
  83 void rs6000_frame_init_saved_regs (struct frame_info *);
  84 CORE_ADDR rs6000_frame_chain (struct frame_info *);
  85 int altivec_register_p (int regno);
  86
  87
  88 /* Return non-zero when the architecture has an FPU (or at least when
  89    the ABI is using the FPU).  */
  90 int ppc_floating_point_unit_p (struct gdbarch *gdbarch);
  91
  92 /* Private data that this module attaches to struct gdbarch. */
  93
  94 struct gdbarch_tdep
  95   {
  96     int wordsize;              /* size in bytes of fixed-point word */
  97     int *regoff;               /* byte offsets in register arrays */
  98     const struct reg *regs;    /* from current variant */
  99     int ppc_gp0_regnum;         /* GPR register 0 */
 100     int ppc_gplast_regnum;      /* GPR register 31 */
 101     int ppc_toc_regnum;         /* TOC register */
 102     int ppc_ps_regnum;          /* Processor (or machine) status (%msr) */
 103     int ppc_cr_regnum;          /* Condition register */
 104     int ppc_lr_regnum;          /* Link register */
 105     int ppc_ctr_regnum;         /* Count register */
 106     int ppc_xer_regnum;         /* Integer exception register */
 107     int ppc_fpscr_regnum;       /* Floating point status and condition
 108                                    register */
 109     int ppc_mq_regnum;          /* Multiply/Divide extension register */
 110     int ppc_vr0_regnum;         /* First AltiVec register */
 111     int ppc_vrsave_regnum;      /* Last AltiVec register */
 112     int ppc_ev0_regnum;         /* First ev register */
 113     int ppc_ev31_regnum;        /* Last ev register */
 114     int lr_frame_offset;        /* Offset to ABI specific location where
 115                                    link register is saved.  */
 116 };
 117
 118 #endif