From 9c92940ac4eb2f445e1d67f0552b522a1bb6f9b8 Mon Sep 17 00:00:00 2001 From: Kung Hsu Date: Thu, 13 Apr 1995 20:03:52 +0000 Subject: [PATCH] * remote-vxsparc.c: New file, preliminary check in, this configuration not supported yet. * remote-vxmips.c: ditto. --- gdb/remote-vxmips.c | 229 ++++++++++++++++++++++++++++++++++++++++++++++++ gdb/remote-vxsparc.c | 239 +++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 468 insertions(+) create mode 100644 gdb/remote-vxmips.c create mode 100644 gdb/remote-vxsparc.c diff --git a/gdb/remote-vxmips.c b/gdb/remote-vxmips.c new file mode 100644 index 0000000..b88f2ba --- /dev/null +++ b/gdb/remote-vxmips.c @@ -0,0 +1,229 @@ +/* MIPS-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., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include +#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 +#include +#include +#include +#include +#include +#include +#include +#include /* UTek's doesn't #incl this */ +#include +#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 +#include + +/* 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 mips_greg_packet[MIPS_GREG_PLEN]; + char mips_fpreg_packet[MIPS_FPREG_PLEN]; + + /* Get general-purpose registers. */ + + net_read_registers (mips_greg_packet, MIPS_GREG_PLEN, PTRACE_GETREGS); + + /* this code copies the registers obtained by RPC + stored in a structure(s) like this : + + Register(s) Offset(s) + gp 0-31 0x00 + hi 0x80 + lo 0x84 + sr 0x88 + pc 0x8c + + into a stucture like this: + + 0x00 GP 0-31 + 0x80 SR + 0x84 LO + 0x88 HI + 0x8C BAD --- Not available currently + 0x90 CAUSE --- Not available currently + 0x94 PC + 0x98 FP 0-31 + 0x118 FCSR + 0x11C FIR --- Not available currently + 0x120 FP --- Not available currently + + structure is 0x124 (292) bytes in length */ + + /* Copy the general registers. */ + + bcopy (&mips_greg_packet[MIPS_R_GP0], ®isters[0], 32 * MIPS_GREG_SIZE); + + /* Copy SR, LO, HI, and PC. */ + + bcopy (&mips_greg_packet[MIPS_R_SR], + ®isters[REGISTER_BYTE (PS_REGNUM)], MIPS_GREG_SIZE); + bcopy (&mips_greg_packet[MIPS_R_LO], + ®isters[REGISTER_BYTE (LO_REGNUM)], MIPS_GREG_SIZE); + bcopy (&mips_greg_packet[MIPS_R_HI], + ®isters[REGISTER_BYTE (HI_REGNUM)], MIPS_GREG_SIZE); + bcopy (&mips_greg_packet[MIPS_R_PC], + ®isters[REGISTER_BYTE (PC_REGNUM)], MIPS_GREG_SIZE); + + /* If the target has floating point registers, fetch them. + Otherwise, zero the floating point register values in + registers[] for good measure, even though we might not + need to. */ + + if (target_has_fp) + { + net_read_registers (mips_fpreg_packet, MIPS_FPREG_PLEN, + PTRACE_GETFPREGS); + + /* Copy the floating point registers. */ + + bcopy (&mips_fpreg_packet[MIPS_R_FP0], + ®isters[REGISTER_BYTE (FP0_REGNUM)], + REGISTER_RAW_SIZE (FP0_REGNUM) * 32); + + /* Copy the floating point control/status register (fpcsr). */ + + bcopy (&mips_fpreg_packet[MIPS_R_FPCSR], + ®isters[REGISTER_BYTE (FCRCS_REGNUM)], + REGISTER_RAW_SIZE (FCRCS_REGNUM)); + } + else + { + bzero ((char *) ®isters[REGISTER_BYTE (FP0_REGNUM)], + REGISTER_RAW_SIZE (FP0_REGNUM) * 32); + bzero ((char *) ®isters[REGISTER_BYTE (FCRCS_REGNUM)], + REGISTER_RAW_SIZE (FCRCS_REGNUM)); + } + + /* 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. */ + +vx_write_register (regno) + int regno; +{ + char mips_greg_packet[MIPS_GREG_PLEN]; + char mips_fpreg_packet[MIPS_FPREG_PLEN]; + + /* Store general registers. */ + + bcopy (®isters[0], &mips_greg_packet[MIPS_R_GP0], 32 * MIPS_GREG_SIZE); + + /* Copy SR, LO, HI, and PC. */ + + bcopy (®isters[REGISTER_BYTE (PS_REGNUM)], + &mips_greg_packet[MIPS_R_SR], MIPS_GREG_SIZE); + bcopy (®isters[REGISTER_BYTE (LO_REGNUM)], + &mips_greg_packet[MIPS_R_LO], MIPS_GREG_SIZE); + bcopy (®isters[REGISTER_BYTE (HI_REGNUM)], + &mips_greg_packet[MIPS_R_HI], MIPS_GREG_SIZE); + bcopy (®isters[REGISTER_BYTE (PC_REGNUM)], + &mips_greg_packet[MIPS_R_PC], MIPS_GREG_SIZE); + + net_write_registers (mips_greg_packet, MIPS_GREG_PLEN, PTRACE_SETREGS); + + /* Store floating point registers if the target has them. */ + + if (target_has_fp) + { + /* Copy the floating point data registers. */ + + bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)], + &mips_fpreg_packet[MIPS_R_FP0], + REGISTER_RAW_SIZE (FP0_REGNUM) * 32); + + /* Copy the floating point control/status register (fpcsr). */ + + bcopy (®isters[REGISTER_BYTE (FCRCS_REGNUM)], + &mips_fpreg_packet[MIPS_R_FPCSR], + REGISTER_RAW_SIZE (FCRCS_REGNUM)); + + net_write_registers (mips_fpreg_packet, MIPS_FPREG_PLEN, + PTRACE_SETFPREGS); + } +} + +/* Convert from an extended float to a double. + The extended float is stored as raw data pointed to by FROM. + Return the converted value as raw data in the double pointed to by TO. + NOTE: mips uses standard two word doubles. */ + +void +vx_convert_to_virtual (regno, from, to) + int regno; + char *from; + char *to; +{ + bcopy (from, to, REGISTER_VIRTUAL_SIZE (regno)); +} + +/* The converse: convert from a double to an extended float. + The double is stored as raw data pointed to by FROM. + Return the converted value as raw data in the extended + float pointed to by TO. */ + +void +vx_convert_from_virtual (regno, from, to) + int regno; + char *from; + char *to; +{ + bcopy (from, to, REGISTER_VIRTUAL_SIZE (regno)); +} diff --git a/gdb/remote-vxsparc.c b/gdb/remote-vxsparc.c new file mode 100644 index 0000000..fef7125 --- /dev/null +++ b/gdb/remote-vxsparc.c @@ -0,0 +1,239 @@ +/* sparc-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., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include +#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 +#include +#include +#include +#include +#include +#include + +#ifdef _AIX /* IBM claims "void *malloc()" not char * */ +#define malloc bogon_malloc +#endif + +#include +#include /* UTek's doesn't #incl this */ +#include +#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 +#include + +/* Flag set if target has fpu */ + +extern int target_has_fp; + +/* sparc floating point format descriptor, from "sparc-tdep.c." */ + +extern struct ext_format ext_format_sparc; + +/* 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 sparc_greg_packet[SPARC_GREG_PLEN]; + char sparc_fpreg_packet[SPARC_FPREG_PLEN]; + CORE_ADDR sp; + + /* Get general-purpose registers. When copying values into + registers [], don't assume that a location in registers [] + is properly aligned for the target data type. */ + + net_read_registers (sparc_greg_packet, SPARC_GREG_PLEN, PTRACE_GETREGS); + + /* Now copy the register values into registers[]. + Note that this code depends on the ordering of the REGNUMs + as defined in "tm-sparc.h". */ + + bcopy (&sparc_greg_packet[SPARC_R_G0], + ®isters[REGISTER_BYTE (G0_REGNUM)], 32 * SPARC_GREG_SIZE); + bcopy (&sparc_greg_packet[SPARC_R_Y], + ®isters[REGISTER_BYTE (Y_REGNUM)], 6 * SPARC_GREG_SIZE); + + /* Now write the local and in registers to the register window + spill area in the frame. VxWorks does not do this for the + active frame automatically; it greatly simplifies debugging + (FRAME_FIND_SAVED_REGS, in particular, depends on this). */ + + sp = extract_address (®isters[REGISTER_BYTE (SP_REGNUM)], + REGISTER_RAW_SIZE (CORE_ADDR)); + write_memory (sp, ®isters[REGISTER_BYTE (L0_REGNUM)], + 16 * REGISTER_RAW_SIZE (L0_REGNUM)); + + /* If the target has floating point registers, fetch them. + Otherwise, zero the floating point register values in + registers[] for good measure, even though we might not + need to. */ + + if (target_has_fp) + { + net_read_registers (sparc_fpreg_packet, SPARC_FPREG_PLEN, + PTRACE_GETFPREGS); + bcopy (&sparc_fpreg_packet[SPARC_R_FP0], + ®isters[REGISTER_BYTE (FP0_REGNUM)], 32 * SPARC_FPREG_SIZE); + bcopy (&sparc_fpreg_packet[SPARC_R_FSR], + ®isters[REGISTER_BYTE (FPS_REGNUM)], 1 * SPARC_FPREG_SIZE); + } + else + { + bzero (®isters[REGISTER_BYTE (FP0_REGNUM)], 32 * SPARC_FPREG_SIZE); + bzero (®isters[REGISTER_BYTE (FPS_REGNUM)], 1 * SPARC_FPREG_SIZE); + } + + /* 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 sparc_greg_packet[SPARC_GREG_PLEN]; + char sparc_fpreg_packet[SPARC_FPREG_PLEN]; + int in_gp_regs; + int in_fp_regs; + CORE_ADDR sp; + + /* Store general purpose registers. When copying values from + registers [], don't assume that a location in registers [] + is properly aligned for the target data type. */ + + in_gp_regs = 1; + in_fp_regs = 1; + if (regno >= 0) + { + if ((G0_REGNUM <= regno && regno <= I7_REGNUM) + || (Y_REGNUM <= regno && regno <= NPC_REGNUM)) + in_fp_regs = 0; + else + in_gp_regs = 0; + } + if (in_gp_regs) + { + bcopy (®isters[REGISTER_BYTE (G0_REGNUM)], + &sparc_greg_packet[SPARC_R_G0], 32 * SPARC_GREG_SIZE); + bcopy (®isters[REGISTER_BYTE (Y_REGNUM)], + &sparc_greg_packet[SPARC_R_Y], 6 * SPARC_GREG_SIZE); + + net_write_registers (sparc_greg_packet, SPARC_GREG_PLEN, PTRACE_SETREGS); + + /* If this is a local or in register, or we're storing all + registers, update the register window spill area. */ + + if (regno < 0 || (L0_REGNUM <= regno && regno <= I7_REGNUM)) + { + sp = extract_address (®isters[REGISTER_BYTE (SP_REGNUM)], + REGISTER_RAW_SIZE (CORE_ADDR)); + write_memory (sp, ®isters[REGISTER_BYTE (L0_REGNUM)], + 16 * REGISTER_RAW_SIZE (L0_REGNUM)); + } + } + + /* Store floating point registers if the target has them. */ + + if (in_fp_regs && target_has_fp) + { + bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)], + &sparc_fpreg_packet[SPARC_R_FP0], 32 * SPARC_FPREG_SIZE); + bcopy (®isters[REGISTER_BYTE (FPS_REGNUM)], + &sparc_fpreg_packet[SPARC_R_FSR], 1 * SPARC_FPREG_SIZE); + + net_write_registers (sparc_fpreg_packet, SPARC_FPREG_PLEN, + PTRACE_SETFPREGS); + } +} + +/* Convert from an extended float to a double. + The extended float is stored as raw data pointed to by FROM. + Return the converted value as raw data in the double pointed to by TO. */ + +void +vx_convert_to_virtual (regno, from, to) + int regno; + char *from; + char *to; +{ + if (REGISTER_CONVERTIBLE (regno)) + { + if (target_has_fp) + ieee_extended_to_double (&ext_format_sparc, from, to); + else + bzero (to, sizeof (double)); + } + else + bcopy (from, to, REGISTER_VIRTUAL_SIZE (regno)); +} + +/* The converse: convert from a double to an extended float. + The double is stored as raw data pointed to by FROM. + Return the converted value as raw data in the extended + float pointed to by TO. */ + +void +vx_convert_from_virtual (regno, from, to) + int regno; + char *from; + char *to; +{ + if (REGISTER_CONVERTIBLE (regno)) + { + if (target_has_fp) + double_to_ieee_extended (&ext_format_sparc, from, to); + else + bzero (to, REGISTER_RAW_SIZE (FP0_REGNUM)); + } + else + bcopy (from, to, REGISTER_VIRTUAL_SIZE (regno)); +} -- 2.7.4