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146 lines
3.9 KiB
C
146 lines
3.9 KiB
C
/* Native-dependent code for PowerPC's running NetBSD, for GDB.
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Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000, 2001
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Free Software Foundation, 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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#include <sys/types.h>
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#include <sys/ptrace.h>
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#include <machine/reg.h>
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#include <machine/frame.h>
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#include "defs.h"
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#include "inferior.h"
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#include "gdbcore.h"
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#include "ppc-tdep.h"
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#include "regcache.h"
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#define RF(dst, src) \
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memcpy(®isters[REGISTER_BYTE(dst)], &src, sizeof(src))
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#define RS(src, dst) \
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memcpy(&dst, ®isters[REGISTER_BYTE(src)], sizeof(dst))
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void
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fetch_inferior_registers (int regno)
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{
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struct reg inferior_registers;
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#ifdef PT_GETFPREGS
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struct fpreg inferior_fp_registers;
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#endif
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int i;
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ptrace (PT_GETREGS, inferior_pid,
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(PTRACE_ARG3_TYPE) & inferior_registers, 0);
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for (i = 0; i < 32; i++)
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RF (i, inferior_registers.fixreg[i]);
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RF (PPC_LR_REGNUM, inferior_registers.lr);
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RF (PPC_CR_REGNUM, inferior_registers.cr);
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RF (PPC_XER_REGNUM, inferior_registers.xer);
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RF (PPC_CTR_REGNUM, inferior_registers.ctr);
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RF (PC_REGNUM, inferior_registers.pc);
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#ifdef PT_GETFPREGS
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ptrace (PT_GETFPREGS, inferior_pid,
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(PTRACE_ARG3_TYPE) &inferior_fp_registers, 0);
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for (i = 0; i < 32; i++)
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RF (FP0_REGNUM + i, inferior_fp_registers.r_regs[i]);
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#endif
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registers_fetched ();
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}
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void
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store_inferior_registers (int regno)
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{
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struct reg inferior_registers;
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#ifdef PT_SETFPREGS
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struct fpreg inferior_fp_registers;
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#endif
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int i;
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for (i = 0; i < 32; i++)
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RS (i, inferior_registers.fixreg[i]);
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RS (PPC_LR_REGNUM, inferior_registers.lr);
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RS (PPC_CR_REGNUM, inferior_registers.cr);
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RS (PPC_XER_REGNUM, inferior_registers.xer);
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RS (PPC_CTR_REGNUM, inferior_registers.ctr);
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RS (PC_REGNUM, inferior_registers.pc);
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ptrace (PT_SETREGS, inferior_pid,
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(PTRACE_ARG3_TYPE) & inferior_registers, 0);
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#ifdef PT_SETFPREGS
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for (i = 0; i < 32; i++)
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RS (FP0_REGNUM + i, inferior_fp_registers.r_regs[i]);
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ptrace (PT_SETFPREGS, inferior_pid,
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(PTRACE_ARG3_TYPE) & inferior_fp_registers, 0);
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#endif
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}
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struct md_core
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{
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struct reg intreg;
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#ifdef PT_GETFPREGS
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struct fpreg freg;
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#endif
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};
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void
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fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
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CORE_ADDR ignore)
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{
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struct md_core *core_reg = (struct md_core *) core_reg_sect;
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int i;
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/* Integer registers */
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for (i = 0; i < 32; i++)
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RF (i, core_reg->intreg.fixreg[i]);
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RF (PPC_LR_REGNUM, core_reg->intreg.lr);
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RF (PPC_CR_REGNUM, core_reg->intreg.cr);
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RF (PPC_XER_REGNUM, core_reg->intreg.xer);
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RF (PPC_CTR_REGNUM, core_reg->intreg.ctr);
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RF (PC_REGNUM, core_reg->intreg.pc);
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#ifdef PT_FPGETREGS
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/* Floating point registers */
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for (i = 0; i < 32; i++)
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RF (FP0_REGNUM + i, core_reg->freg.r_regs[i]);
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#endif
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registers_fetched ();
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}
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/* Register that we are able to handle ppcnbsd core file formats.
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FIXME: is this really bfd_target_unknown_flavour? */
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static struct core_fns ppcnbsd_core_fns =
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{
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bfd_target_unknown_flavour, /* core_flavour */
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default_check_format, /* check_format */
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default_core_sniffer, /* core_sniffer */
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fetch_core_registers, /* core_read_registers */
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NULL /* next */
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};
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void
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_initialize_ppcnbsd_nat (void)
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{
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add_core_fns (&ppcnbsd_core_fns);
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}
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