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019048261d
* ppc-tdep.h (struct gdbarch_tdep): New member: 'ppc_gprs_pseudo_p'. * rs6000-tdep.c (rs6000_gdbarch_init): Initialize it to false on all architectures except the E500. * ppc-linux-nat.c: (PTRACE_GETEVRREGS, PTRACE_SETEVRREGS): New #definitions. (struct gdb_evrregset_t): New type. (have_ptrace_getsetevrregs): New variable. (get_spe_registers, read_spliced_spe_reg, fetch_spe_register, fetch_spe_registers): New functions. (fetch_register): Call fetch_spe_register as appropriate. Assert that we're only passed raw register numbers. (fetch_ppc_registers): Call fetch_spe_registers as appropriate. Don't fetch gprs if they're pseudoregisters. (set_spe_registers, write_spliced_spe_reg, store_spe_register, store_spe_registers): New functions. (store_register): Call store_spe_register as appropriate. Assert that we're only passed raw register numbers. (store_ppc_registers): Call store_spe_registers as appropriate. Don't store gprs if they're pseudoregisters.
181 lines
6.3 KiB
C
181 lines
6.3 KiB
C
/* Target-dependent code for GDB, the GNU debugger.
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Copyright 2000, 2001, 2002, 2003, 2004 Free Software Foundation,
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Inc.
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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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#ifndef PPC_TDEP_H
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#define PPC_TDEP_H
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struct gdbarch;
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struct frame_info;
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struct value;
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struct regcache;
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struct type;
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/* From ppc-linux-tdep.c... */
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enum return_value_convention ppc_sysv_abi_return_value (struct gdbarch *gdbarch,
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struct type *valtype,
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struct regcache *regcache,
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void *readbuf,
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const void *writebuf);
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enum return_value_convention ppc_sysv_abi_broken_return_value (struct gdbarch *gdbarch,
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struct type *valtype,
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struct regcache *regcache,
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void *readbuf,
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const void *writebuf);
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CORE_ADDR ppc_sysv_abi_push_dummy_call (struct gdbarch *gdbarch,
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struct value *function,
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struct regcache *regcache,
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CORE_ADDR bp_addr, int nargs,
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struct value **args, CORE_ADDR sp,
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int struct_return,
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CORE_ADDR struct_addr);
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CORE_ADDR ppc64_sysv_abi_push_dummy_call (struct gdbarch *gdbarch,
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struct value *function,
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struct regcache *regcache,
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CORE_ADDR bp_addr, int nargs,
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struct value **args, CORE_ADDR sp,
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int struct_return,
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CORE_ADDR struct_addr);
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CORE_ADDR ppc64_sysv_abi_adjust_breakpoint_address (struct gdbarch *gdbarch,
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CORE_ADDR bpaddr);
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int ppc_linux_memory_remove_breakpoint (CORE_ADDR addr, char *contents_cache);
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struct link_map_offsets *ppc_linux_svr4_fetch_link_map_offsets (void);
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void ppc_linux_supply_gregset (struct regcache *regcache,
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int regnum, const void *gregs, size_t size,
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int wordsize);
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void ppc_linux_supply_fpregset (const struct regset *regset,
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struct regcache *regcache,
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int regnum, const void *gregs, size_t size);
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enum return_value_convention ppc64_sysv_abi_return_value (struct gdbarch *gdbarch,
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struct type *valtype,
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struct regcache *regcache,
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void *readbuf,
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const void *writebuf);
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/* From rs6000-tdep.c... */
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int altivec_register_p (int regno);
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int spe_register_p (int regno);
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/* Return non-zero if the architecture described by GDBARCH has
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floating-point registers (f0 --- f31 and fpscr). */
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int ppc_floating_point_unit_p (struct gdbarch *gdbarch);
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/* Register set description. */
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struct ppc_reg_offsets
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{
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/* General-purpose registers. */
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int r0_offset;
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int pc_offset;
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int ps_offset;
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int cr_offset;
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int lr_offset;
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int ctr_offset;
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int xer_offset;
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int mq_offset;
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/* Floating-point registers. */
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int f0_offset;
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int fpscr_offset;
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/* AltiVec registers. */
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int vr0_offset;
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int vscr_offset;
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int vrsave_offset;
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};
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/* Supply register REGNUM in the general-purpose register set REGSET
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from the buffer specified by GREGS and LEN to register cache
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REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
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extern void ppc_supply_gregset (const struct regset *regset,
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struct regcache *regcache,
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int regnum, const void *gregs, size_t len);
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/* Supply register REGNUM in the floating-point register set REGSET
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from the buffer specified by FPREGS and LEN to register cache
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REGCACHE. If REGNUM is -1, do this for all registers in REGSET. */
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extern void ppc_supply_fpregset (const struct regset *regset,
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struct regcache *regcache,
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int regnum, const void *fpregs, size_t len);
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/* Collect register REGNUM in the general-purpose register set
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REGSET. from register cache REGCACHE into the buffer specified by
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GREGS and LEN. If REGNUM is -1, do this for all registers in
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REGSET. */
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extern void ppc_collect_gregset (const struct regset *regset,
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const struct regcache *regcache,
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int regnum, void *gregs, size_t len);
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/* Collect register REGNUM in the floating-point register set
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REGSET. from register cache REGCACHE into the buffer specified by
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FPREGS and LEN. If REGNUM is -1, do this for all registers in
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REGSET. */
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extern void ppc_collect_fpregset (const struct regset *regset,
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const struct regcache *regcache,
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int regnum, void *fpregs, size_t len);
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/* Private data that this module attaches to struct gdbarch. */
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struct gdbarch_tdep
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{
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int wordsize; /* size in bytes of fixed-point word */
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const struct reg *regs; /* from current variant */
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int ppc_gp0_regnum; /* GPR register 0 */
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int ppc_gprs_pseudo_p; /* non-zero if GPRs are pseudo-registers */
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int ppc_toc_regnum; /* TOC register */
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int ppc_ps_regnum; /* Processor (or machine) status (%msr) */
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int ppc_cr_regnum; /* Condition register */
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int ppc_lr_regnum; /* Link register */
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int ppc_ctr_regnum; /* Count register */
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int ppc_xer_regnum; /* Integer exception register */
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/* On PPC and RS6000 variants that have no floating-point
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registers, the next two members will be -1. */
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int ppc_fp0_regnum; /* floating-point register 0 */
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int ppc_fpscr_regnum; /* Floating point status and condition
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register */
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int ppc_mq_regnum; /* Multiply/Divide extension register */
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int ppc_vr0_regnum; /* First AltiVec register */
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int ppc_vrsave_regnum; /* Last AltiVec register */
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int ppc_ev0_regnum; /* First ev register */
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int ppc_ev31_regnum; /* Last ev register */
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int ppc_acc_regnum; /* SPE 'acc' register */
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int ppc_spefscr_regnum; /* SPE 'spefscr' register */
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int lr_frame_offset; /* Offset to ABI specific location where
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link register is saved. */
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};
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/* Constants for register set sizes. */
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enum
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{
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ppc_num_gprs = 32, /* 32 general-purpose registers */
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ppc_num_fprs = 32 /* 32 floating-point registers */
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};
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#endif
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