| /* 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" /* for struct complaint */ |
| #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], registers, 16 * MC68K_GREG_SIZE); |
| bcopy (&mc68k_greg_packet[MC68K_R_SR], ®isters[REGISTER_BYTE (PS_REGNUM)], |
| MC68K_GREG_SIZE); |
| bcopy (&mc68k_greg_packet[MC68K_R_PC], ®isters[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], |
| ®isters[REGISTER_BYTE (FP0_REGNUM)], |
| MC68K_FPREG_SIZE * 8); |
| bcopy (&mc68k_fpreg_packet[MC68K_R_FPCR], |
| ®isters[REGISTER_BYTE (FPC_REGNUM)], |
| MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8)); |
| } |
| else |
| { |
| bzero (®isters[REGISTER_BYTE (FP0_REGNUM)], |
| MC68K_FPREG_SIZE * 8); |
| bzero (®isters[REGISTER_BYTE (FPC_REGNUM)], |
| MC68K_FPREG_PLEN - (MC68K_FPREG_SIZE * 8)); |
| } |
| |
| /* Mark the register cache valid. */ |
| |
| 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 (registers, &mc68k_greg_packet[MC68K_R_D0], 16 * MC68K_GREG_SIZE); |
| bcopy (®isters[REGISTER_BYTE (PS_REGNUM)], |
| &mc68k_greg_packet[MC68K_R_SR], MC68K_GREG_SIZE); |
| bcopy (®isters[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 (®isters[REGISTER_BYTE (FP0_REGNUM)], |
| &mc68k_fpreg_packet[MC68K_R_FP0], |
| MC68K_FPREG_SIZE * 8); |
| bcopy (®isters[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); |
| } |
| } |