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Diffstat (limited to 'gdb/ppcfbsd-nat.c')
| -rw-r--r-- | gdb/ppcfbsd-nat.c | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/gdb/ppcfbsd-nat.c b/gdb/ppcfbsd-nat.c deleted file mode 100644 index 999e383..0000000 --- a/gdb/ppcfbsd-nat.c +++ /dev/null @@ -1,219 +0,0 @@ -/* Native-dependent code for PowerPC's running FreeBSD, for GDB. - - Copyright (C) 2013-2016 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 3 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, see <http://www.gnu.org/licenses/>. */ - -#include "defs.h" -#include "gdbcore.h" -#include "inferior.h" -#include "regcache.h" - -#include <sys/types.h> -#include <sys/procfs.h> -#include <sys/ptrace.h> -#include <sys/signal.h> -#include <machine/frame.h> -#include <machine/pcb.h> -#include <machine/reg.h> - -#include "fbsd-nat.h" -#include "gregset.h" -#include "ppc-tdep.h" -#include "ppcfbsd-tdep.h" -#include "inf-ptrace.h" -#include "bsd-kvm.h" - -/* Fill GDB's register array with the general-purpose register values - in *GREGSETP. */ - -void -supply_gregset (struct regcache *regcache, const gdb_gregset_t *gregsetp) -{ - const struct regset *regset = ppc_fbsd_gregset (sizeof (long)); - - ppc_supply_gregset (regset, regcache, -1, gregsetp, sizeof (*gregsetp)); -} - -/* Fill register REGNO (if a gpr) in *GREGSETP with the value in GDB's - register array. If REGNO is -1 do it for all registers. */ - -void -fill_gregset (const struct regcache *regcache, - gdb_gregset_t *gregsetp, int regno) -{ - const struct regset *regset = ppc_fbsd_gregset (sizeof (long)); - - if (regno == -1) - memset (gregsetp, 0, sizeof (*gregsetp)); - ppc_collect_gregset (regset, regcache, regno, gregsetp, sizeof (*gregsetp)); -} - -/* Fill GDB's register array with the floating-point register values - in *FPREGSETP. */ - -void -supply_fpregset (struct regcache *regcache, const gdb_fpregset_t * fpregsetp) -{ - const struct regset *regset = ppc_fbsd_fpregset (); - - ppc_supply_fpregset (regset, regcache, -1, - fpregsetp, sizeof (*fpregsetp)); -} - -/* Fill register REGNO in *FGREGSETP with the value in GDB's - register array. If REGNO is -1 do it for all registers. */ - -void -fill_fpregset (const struct regcache *regcache, - gdb_fpregset_t *fpregsetp, int regno) -{ - const struct regset *regset = ppc_fbsd_fpregset (); - - ppc_collect_fpregset (regset, regcache, regno, - fpregsetp, sizeof (*fpregsetp)); -} - -/* Returns true if PT_GETFPREGS fetches this register. */ - -static int -getfpregs_supplies (struct gdbarch *gdbarch, int regno) -{ - struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); - - /* FIXME: jimb/2004-05-05: Some PPC variants don't have floating - point registers. Traditionally, GDB's register set has still - listed the floating point registers for such machines, so this - code is harmless. However, the new E500 port actually omits the - floating point registers entirely from the register set --- they - don't even have register numbers assigned to them. - - It's not clear to me how best to update this code, so this assert - will alert the first person to encounter the NetBSD/E500 - combination to the problem. */ - - gdb_assert (ppc_floating_point_unit_p (gdbarch)); - - return ((regno >= tdep->ppc_fp0_regnum - && regno < tdep->ppc_fp0_regnum + ppc_num_fprs) - || regno == tdep->ppc_fpscr_regnum); -} - -/* Fetch register REGNO from the child process. If REGNO is -1, do it - for all registers. */ - -static void -ppcfbsd_fetch_inferior_registers (struct target_ops *ops, - struct regcache *regcache, int regno) -{ - gdb_gregset_t regs; - - if (ptrace (PT_GETREGS, ptid_get_lwp (inferior_ptid), - (PTRACE_TYPE_ARG3) ®s, 0) == -1) - perror_with_name (_("Couldn't get registers")); - - supply_gregset (regcache, ®s); - - if (regno == -1 || getfpregs_supplies (get_regcache_arch (regcache), regno)) - { - const struct regset *fpregset = ppc_fbsd_fpregset (); - gdb_fpregset_t fpregs; - - if (ptrace (PT_GETFPREGS, ptid_get_lwp (inferior_ptid), - (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) - perror_with_name (_("Couldn't get FP registers")); - - ppc_supply_fpregset (fpregset, regcache, regno, &fpregs, sizeof fpregs); - } -} - -/* Store register REGNO back into the child process. If REGNO is -1, - do this for all registers. */ - -static void -ppcfbsd_store_inferior_registers (struct target_ops *ops, - struct regcache *regcache, int regno) -{ - gdb_gregset_t regs; - - if (ptrace (PT_GETREGS, ptid_get_lwp (inferior_ptid), - (PTRACE_TYPE_ARG3) ®s, 0) == -1) - perror_with_name (_("Couldn't get registers")); - - fill_gregset (regcache, ®s, regno); - - if (ptrace (PT_SETREGS, ptid_get_lwp (inferior_ptid), - (PTRACE_TYPE_ARG3) ®s, 0) == -1) - perror_with_name (_("Couldn't write registers")); - - if (regno == -1 || getfpregs_supplies (get_regcache_arch (regcache), regno)) - { - gdb_fpregset_t fpregs; - - if (ptrace (PT_GETFPREGS, ptid_get_lwp (inferior_ptid), - (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) - perror_with_name (_("Couldn't get FP registers")); - - fill_fpregset (regcache, &fpregs, regno); - - if (ptrace (PT_SETFPREGS, ptid_get_lwp (inferior_ptid), - (PTRACE_TYPE_ARG3) &fpregs, 0) == -1) - perror_with_name (_("Couldn't set FP registers")); - } -} - -/* Architecture specific function that reconstructs the - register state from PCB (Process Control Block) and supplies it - to REGCACHE. */ - -static int -ppcfbsd_supply_pcb (struct regcache *regcache, struct pcb *pcb) -{ - struct gdbarch *gdbarch = get_regcache_arch (regcache); - struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); - int i, regnum; - - /* The stack pointer shouldn't be zero. */ - if (pcb->pcb_sp == 0) - return 0; - - regcache_raw_supply (regcache, gdbarch_sp_regnum (gdbarch), &pcb->pcb_sp); - regcache_raw_supply (regcache, tdep->ppc_cr_regnum, &pcb->pcb_cr); - regcache_raw_supply (regcache, tdep->ppc_lr_regnum, &pcb->pcb_lr); - for (i = 0, regnum = tdep->ppc_gp0_regnum + 14; i < 20; i++, regnum++) - regcache_raw_supply (regcache, regnum, &pcb->pcb_context[i]); - - return 1; -} - -/* Provide a prototype to silence -Wmissing-prototypes. */ - -void _initialize_ppcfbsd_nat (void); - -void -_initialize_ppcfbsd_nat (void) -{ - struct target_ops *t; - - /* Add in local overrides. */ - t = inf_ptrace_target (); - t->to_fetch_registers = ppcfbsd_fetch_inferior_registers; - t->to_store_registers = ppcfbsd_store_inferior_registers; - fbsd_nat_add_target (t); - - /* Support debugging kernel virtual memory images. */ - bsd_kvm_add_target (ppcfbsd_supply_pcb); -} |