diff options
Diffstat (limited to 'gdb/shnbsd-nat.c')
-rw-r--r-- | gdb/shnbsd-nat.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/gdb/shnbsd-nat.c b/gdb/shnbsd-nat.c new file mode 100644 index 0000000..e1b56e6 --- /dev/null +++ b/gdb/shnbsd-nat.c @@ -0,0 +1,76 @@ +/* Native-dependent code for SuperH running NetBSD, for GDB. + Copyright 2002 Free Software Foundation, Inc. + Contributed by Wasabi Systems, 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. */ + +#include <sys/types.h> +#include <sys/ptrace.h> +#include <machine/reg.h> + +#include "defs.h" +#include "inferior.h" + +#include "shnbsd-tdep.h" + +/* Determine if PT_GETREGS fetches this register. */ +#define GETREGS_SUPPLIES(regno) \ + (((regno) >= R0_REGNUM && (regno) <= (R0_REGNUM + 15)) \ +|| (regno) == PC_REGNUM || (regno) == PR_REGNUM \ +|| (regno) == MACH_REGNUM || (regno) == MACL_REGNUM \ +|| (regno) == SR_REGNUM) + +void +fetch_inferior_registers (int regno) +{ + if (regno == -1 || GETREGS_SUPPLIES (regno)) + { + struct reg inferior_registers; + + if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), + (PTRACE_ARG3_TYPE) &inferior_registers, 0) == -1) + perror_with_name ("Couldn't get registers"); + + shnbsd_supply_reg ((char *) &inferior_registers, regno); + + if (regno != -1) + return; + } +} + +void +store_inferior_registers (int regno) +{ + if (regno == -1 || GETREGS_SUPPLIES (regno)) + { + struct reg inferior_registers; + + if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), + (PTRACE_ARG3_TYPE) &inferior_registers, 0) == -1) + perror_with_name ("Couldn't get registers"); + + shnbsd_fill_reg ((char *) &inferior_registers, regno); + + if (ptrace (PT_SETREGS, PIDGET (inferior_ptid), + (PTRACE_ARG3_TYPE) &inferior_registers, 0) == -1) + perror_with_name ("Couldn't set registers"); + + if (regno != -1) + return; + } +} |