diff options
Diffstat (limited to 'gdb/remote-vx68.c')
| -rw-r--r-- | gdb/remote-vx68.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/gdb/remote-vx68.c b/gdb/remote-vx68.c new file mode 100644 index 00000000000..c6ceda18e05 --- /dev/null +++ b/gdb/remote-vx68.c @@ -0,0 +1,158 @@ +/* 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 "wait.h" +#include "target.h" +#include "gdbcore.h" +#include "command.h" +#include "symtab.h" +#include "symfile.h" /* for struct complaint */ + +#include "gdb_string.h" +#include <errno.h> +#include <signal.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 (regno) + 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 (regno) + 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); + } +} |