/* 68k-dependent portions of the RPC protocol used with a VxWorks target Contributed by Wind River Systems. 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 <stdio.h> #include "defs.h" #include "vx-share/regPacket.h" #include "frame.h" #include "inferior.h" #include "target.h" #include "gdbcore.h" #include "command.h" #include "symtab.h" #include "symfile.h" #include "regcache.h" #include "gdb_string.h" #include <errno.h> #include <fcntl.h> #include <sys/types.h> #include <sys/time.h> #include <sys/socket.h> #ifdef _AIX /* IBM claims "void *malloc()" not char * */ #define malloc bogon_malloc #endif #include <rpc/rpc.h> #ifdef _AIX #undef malloc #endif #include <sys/time.h> /* UTek's <rpc/rpc.h> doesn't #incl this */ #include <netdb.h> #include "vx-share/ptrace.h" #include "vx-share/xdr_ptrace.h" #include "vx-share/xdr_ld.h" #include "vx-share/xdr_rdb.h" #include "vx-share/dbgRpcLib.h" /* get rid of value.h if possible */ #include <value.h> #include <symtab.h> /* Flag set if target has fpu */ extern int target_has_fp; /* Generic register read/write routines in remote-vx.c. */ extern void net_read_registers (); extern void net_write_registers (); /* Read a register or registers from the VxWorks target. REGNO is the register to read, or -1 for all; currently, it is ignored. FIXME look at regno to improve efficiency. */ void vx_read_register (int regno) { char mc68k_greg_packet[MC68K_GREG_PLEN]; char mc68k_fpreg_packet[MC68K_FPREG_PLEN]; /* Get general-purpose registers. */ net_read_registers (mc68k_greg_packet, MC68K_GREG_PLEN, PTRACE_GETREGS); bcopy (&mc68k_greg_packet[MC68K_R_D0], deprecated_registers, 16 * MC68K_GREG_SIZE); bcopy (&mc68k_greg_packet[MC68K_R_SR], &deprecated_registers[REGISTER_BYTE (PS_REGNUM)], MC68K_GREG_SIZE); bcopy (&mc68k_greg_packet[MC68K_R_PC], &deprecated_registers[REGISTER_BYTE (PC_REGNUM)], MC68K_GREG_SIZE); /* Get floating-point registers, if the target system has them. Otherwise, zero them. */ if (target_has_fp) { net_read_registers (mc68k_fpreg_packet, MC68K_FPREG_PLEN, PTRACE_GETFPREGS); bcopy (&mc68k_fpreg_packet[MC68K_R_FP0], &deprecated_registers[REGISTER_BYTE (FP0_REGNUM)], MC68K_FPREG_SIZE * 8); bcopy (&mc68k_fpreg_packet[MC68K_R_FPCR], &deprecated_registers[REGISTER_BYTE (FPC_REGNUM)], MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8)); } else { bzero (&deprecated_registers[REGISTER_BYTE (FP0_REGNUM)], MC68K_FPREG_SIZE * 8); bzero (&deprecated_registers[REGISTER_BYTE (FPC_REGNUM)], MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8)); } /* Mark the register cache valid. */ deprecated_registers_fetched (); } /* Store a register or registers into the VxWorks target. REGNO is the register to store, or -1 for all; currently, it is ignored. FIXME look at regno to improve efficiency. */ void vx_write_register (int regno) { char mc68k_greg_packet[MC68K_GREG_PLEN]; char mc68k_fpreg_packet[MC68K_FPREG_PLEN]; /* Store general-purpose registers. */ bcopy (deprecated_registers, &mc68k_greg_packet[MC68K_R_D0], 16 * MC68K_GREG_SIZE); bcopy (&deprecated_registers[REGISTER_BYTE (PS_REGNUM)], &mc68k_greg_packet[MC68K_R_SR], MC68K_GREG_SIZE); bcopy (&deprecated_registers[REGISTER_BYTE (PC_REGNUM)], &mc68k_greg_packet[MC68K_R_PC], MC68K_GREG_SIZE); net_write_registers (mc68k_greg_packet, MC68K_GREG_PLEN, PTRACE_SETREGS); /* Store floating point registers if the target has them. */ if (target_has_fp) { bcopy (&deprecated_registers[REGISTER_BYTE (FP0_REGNUM)], &mc68k_fpreg_packet[MC68K_R_FP0], MC68K_FPREG_SIZE * 8); bcopy (&deprecated_registers[REGISTER_BYTE (FPC_REGNUM)], &mc68k_fpreg_packet[MC68K_R_FPCR], MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8)); net_write_registers (mc68k_fpreg_packet, MC68K_FPREG_PLEN, PTRACE_SETFPREGS); } }