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[/] [or1k/] [trunk/] [insight/] [gdb/] [ultra3-nat.c] - Rev 1765
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/* OBSOLETE /* Native-dependent code for GDB, for NYU Ultra3 running Sym1 OS. */ /* OBSOLETE Copyright 1988, 1989, 1991, 1992, 1995, 1996, 1999, 2000, 2001 */ /* OBSOLETE Free Software Foundation, Inc. */ /* OBSOLETE Contributed by David Wood (wood@nyu.edu) at New York University. */ /* OBSOLETE */ /* OBSOLETE This file is part of GDB. */ /* OBSOLETE */ /* OBSOLETE This program is free software; you can redistribute it and/or modify */ /* OBSOLETE it under the terms of the GNU General Public License as published by */ /* OBSOLETE the Free Software Foundation; either version 2 of the License, or */ /* OBSOLETE (at your option) any later version. */ /* OBSOLETE */ /* OBSOLETE This program is distributed in the hope that it will be useful, */ /* OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of */ /* OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ /* OBSOLETE GNU General Public License for more details. */ /* OBSOLETE */ /* OBSOLETE You should have received a copy of the GNU General Public License */ /* OBSOLETE along with this program; if not, write to the Free Software */ /* OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, */ /* OBSOLETE Boston, MA 02111-1307, USA. */ */ /* OBSOLETE */ /* OBSOLETE #define DEBUG */ /* OBSOLETE #include "defs.h" */ /* OBSOLETE #include "frame.h" */ /* OBSOLETE #include "inferior.h" */ /* OBSOLETE #include "symtab.h" */ /* OBSOLETE #include "value.h" */ /* OBSOLETE #include "regcache.h" */ /* OBSOLETE */ /* OBSOLETE #include <sys/types.h> */ /* OBSOLETE #include <sys/param.h> */ /* OBSOLETE #include <signal.h> */ /* OBSOLETE #include <sys/ioctl.h> */ /* OBSOLETE #include <fcntl.h> */ /* OBSOLETE */ /* OBSOLETE #include "gdbcore.h" */ /* OBSOLETE */ /* OBSOLETE #include <sys/file.h> */ /* OBSOLETE #include "gdb_stat.h" */ /* OBSOLETE */ /* OBSOLETE static void fetch_core_registers (char *, unsigned, int, CORE_ADDR); */ /* OBSOLETE */ /* OBSOLETE /* Assumes support for AMD's Binary Compatibility Standard */ /* OBSOLETE for ptrace(). If you define ULTRA3, the ultra3 extensions to */ /* OBSOLETE ptrace() are used allowing the reading of more than one register */ /* OBSOLETE at a time. */ /* OBSOLETE */ /* OBSOLETE This file assumes KERNEL_DEBUGGING is turned off. This means */ /* OBSOLETE that if the user/gdb tries to read gr64-gr95 or any of the */ /* OBSOLETE protected special registers we silently return -1 (see the */ /* OBSOLETE CANNOT_STORE/FETCH_REGISTER macros). */ */ /* OBSOLETE #define ULTRA3 */ /* OBSOLETE */ /* OBSOLETE #if !defined (offsetof) */ /* OBSOLETE #define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER) */ /* OBSOLETE #endif */ /* OBSOLETE */ /* OBSOLETE extern int errno; */ /* OBSOLETE struct ptrace_user pt_struct; */ /* OBSOLETE */ /* OBSOLETE /* Get all available registers from the inferior. Registers that are */ /* OBSOLETE * defined in REGISTER_NAMES, but not available to the user/gdb are */ /* OBSOLETE * supplied as -1. This may include gr64-gr95 and the protected special */ /* OBSOLETE * purpose registers. */ /* OBSOLETE */ */ /* OBSOLETE */ /* OBSOLETE void */ /* OBSOLETE fetch_inferior_registers (int regno) */ /* OBSOLETE { */ /* OBSOLETE register int i, j, ret_val = 0; */ /* OBSOLETE char buf[128]; */ /* OBSOLETE */ /* OBSOLETE if (regno != -1) */ /* OBSOLETE { */ /* OBSOLETE fetch_register (regno); */ /* OBSOLETE return; */ /* OBSOLETE } */ /* OBSOLETE */ /* OBSOLETE /* Global Registers */ */ /* OBSOLETE #ifdef ULTRA3 */ /* OBSOLETE errno = 0; */ /* OBSOLETE ptrace (PT_READ_STRUCT, PIDGET (inferior_ptid), */ /* OBSOLETE (PTRACE_ARG3_TYPE) register_addr (GR96_REGNUM, 0), */ /* OBSOLETE (int) &pt_struct.pt_gr[0], 32 * 4); */ /* OBSOLETE if (errno != 0) */ /* OBSOLETE { */ /* OBSOLETE perror_with_name ("reading global registers"); */ /* OBSOLETE ret_val = -1; */ /* OBSOLETE } */ /* OBSOLETE else */ /* OBSOLETE for (regno = GR96_REGNUM, j = 0; j < 32; regno++, j++) */ /* OBSOLETE { */ /* OBSOLETE supply_register (regno, &pt_struct.pt_gr[j]); */ /* OBSOLETE } */ /* OBSOLETE #else */ /* OBSOLETE for (regno = GR96_REGNUM; !ret_val && regno < GR96_REGNUM + 32; regno++) */ /* OBSOLETE fetch_register (regno); */ /* OBSOLETE #endif */ /* OBSOLETE */ /* OBSOLETE /* Local Registers */ */ /* OBSOLETE #ifdef ULTRA3 */ /* OBSOLETE errno = 0; */ /* OBSOLETE ptrace (PT_READ_STRUCT, PIDGET (inferior_ptid), */ /* OBSOLETE (PTRACE_ARG3_TYPE) register_addr (LR0_REGNUM, 0), */ /* OBSOLETE (int) &pt_struct.pt_lr[0], 128 * 4); */ /* OBSOLETE if (errno != 0) */ /* OBSOLETE { */ /* OBSOLETE perror_with_name ("reading local registers"); */ /* OBSOLETE ret_val = -1; */ /* OBSOLETE } */ /* OBSOLETE else */ /* OBSOLETE for (regno = LR0_REGNUM, j = 0; j < 128; regno++, j++) */ /* OBSOLETE { */ /* OBSOLETE supply_register (regno, &pt_struct.pt_lr[j]); */ /* OBSOLETE } */ /* OBSOLETE #else */ /* OBSOLETE for (regno = LR0_REGNUM; !ret_val && regno < LR0_REGNUM + 128; regno++) */ /* OBSOLETE fetch_register (regno); */ /* OBSOLETE #endif */ /* OBSOLETE */ /* OBSOLETE /* Special Registers */ */ /* OBSOLETE fetch_register (GR1_REGNUM); */ /* OBSOLETE fetch_register (CPS_REGNUM); */ /* OBSOLETE fetch_register (PC_REGNUM); */ /* OBSOLETE fetch_register (NPC_REGNUM); */ /* OBSOLETE fetch_register (PC2_REGNUM); */ /* OBSOLETE fetch_register (IPC_REGNUM); */ /* OBSOLETE fetch_register (IPA_REGNUM); */ /* OBSOLETE fetch_register (IPB_REGNUM); */ /* OBSOLETE fetch_register (Q_REGNUM); */ /* OBSOLETE fetch_register (BP_REGNUM); */ /* OBSOLETE fetch_register (FC_REGNUM); */ /* OBSOLETE */ /* OBSOLETE /* Fake any registers that are in REGISTER_NAMES, but not available to gdb */ */ /* OBSOLETE registers_fetched (); */ /* OBSOLETE } */ /* OBSOLETE */ /* OBSOLETE /* Store our register values back into the inferior. */ /* OBSOLETE * If REGNO is -1, do this for all registers. */ /* OBSOLETE * Otherwise, REGNO specifies which register (so we can save time). */ /* OBSOLETE * NOTE: Assumes AMD's binary compatibility standard. */ /* OBSOLETE */ */ /* OBSOLETE */ /* OBSOLETE void */ /* OBSOLETE store_inferior_registers (int regno) */ /* OBSOLETE { */ /* OBSOLETE register unsigned int regaddr; */ /* OBSOLETE char buf[80]; */ /* OBSOLETE */ /* OBSOLETE if (regno >= 0) */ /* OBSOLETE { */ /* OBSOLETE if (CANNOT_STORE_REGISTER (regno)) */ /* OBSOLETE return; */ /* OBSOLETE regaddr = register_addr (regno, 0); */ /* OBSOLETE errno = 0; */ /* OBSOLETE ptrace (PT_WRITE_U, PIDGET (inferior_ptid), */ /* OBSOLETE (PTRACE_ARG3_TYPE) regaddr, read_register (regno)); */ /* OBSOLETE if (errno != 0) */ /* OBSOLETE { */ /* OBSOLETE sprintf (buf, "writing register %s (#%d)", REGISTER_NAME (regno), regno); */ /* OBSOLETE perror_with_name (buf); */ /* OBSOLETE } */ /* OBSOLETE } */ /* OBSOLETE else */ /* OBSOLETE { */ /* OBSOLETE #ifdef ULTRA3 */ /* OBSOLETE pt_struct.pt_gr1 = read_register (GR1_REGNUM); */ /* OBSOLETE for (regno = GR96_REGNUM; regno < GR96_REGNUM + 32; regno++) */ /* OBSOLETE pt_struct.pt_gr[regno] = read_register (regno); */ /* OBSOLETE for (regno = LR0_REGNUM; regno < LR0_REGNUM + 128; regno++) */ /* OBSOLETE pt_struct.pt_gr[regno] = read_register (regno); */ /* OBSOLETE errno = 0; */ /* OBSOLETE ptrace (PT_WRITE_STRUCT, PIDGET (inferior_ptid), */ /* OBSOLETE (PTRACE_ARG3_TYPE) register_addr (GR1_REGNUM, 0), */ /* OBSOLETE (int) &pt_struct.pt_gr1, (1 * 32 * 128) * 4); */ /* OBSOLETE if (errno != 0) */ /* OBSOLETE { */ /* OBSOLETE sprintf (buf, "writing all local/global registers"); */ /* OBSOLETE perror_with_name (buf); */ /* OBSOLETE } */ /* OBSOLETE pt_struct.pt_psr = read_register (CPS_REGNUM); */ /* OBSOLETE pt_struct.pt_pc0 = read_register (NPC_REGNUM); */ /* OBSOLETE pt_struct.pt_pc1 = read_register (PC_REGNUM); */ /* OBSOLETE pt_struct.pt_pc2 = read_register (PC2_REGNUM); */ /* OBSOLETE pt_struct.pt_ipc = read_register (IPC_REGNUM); */ /* OBSOLETE pt_struct.pt_ipa = read_register (IPA_REGNUM); */ /* OBSOLETE pt_struct.pt_ipb = read_register (IPB_REGNUM); */ /* OBSOLETE pt_struct.pt_q = read_register (Q_REGNUM); */ /* OBSOLETE pt_struct.pt_bp = read_register (BP_REGNUM); */ /* OBSOLETE pt_struct.pt_fc = read_register (FC_REGNUM); */ /* OBSOLETE errno = 0; */ /* OBSOLETE ptrace (PT_WRITE_STRUCT, PIDGET (inferior_ptid), */ /* OBSOLETE (PTRACE_ARG3_TYPE) register_addr (CPS_REGNUM, 0), */ /* OBSOLETE (int) &pt_struct.pt_psr, (10) * 4); */ /* OBSOLETE if (errno != 0) */ /* OBSOLETE { */ /* OBSOLETE sprintf (buf, "writing all special registers"); */ /* OBSOLETE perror_with_name (buf); */ /* OBSOLETE return; */ /* OBSOLETE } */ /* OBSOLETE #else */ /* OBSOLETE store_inferior_registers (GR1_REGNUM); */ /* OBSOLETE for (regno = GR96_REGNUM; regno < GR96_REGNUM + 32; regno++) */ /* OBSOLETE store_inferior_registers (regno); */ /* OBSOLETE for (regno = LR0_REGNUM; regno < LR0_REGNUM + 128; regno++) */ /* OBSOLETE store_inferior_registers (regno); */ /* OBSOLETE store_inferior_registers (CPS_REGNUM); */ /* OBSOLETE store_inferior_registers (PC_REGNUM); */ /* OBSOLETE store_inferior_registers (NPC_REGNUM); */ /* OBSOLETE store_inferior_registers (PC2_REGNUM); */ /* OBSOLETE store_inferior_registers (IPC_REGNUM); */ /* OBSOLETE store_inferior_registers (IPA_REGNUM); */ /* OBSOLETE store_inferior_registers (IPB_REGNUM); */ /* OBSOLETE store_inferior_registers (Q_REGNUM); */ /* OBSOLETE store_inferior_registers (BP_REGNUM); */ /* OBSOLETE store_inferior_registers (FC_REGNUM); */ /* OBSOLETE #endif /* ULTRA3 */ */ /* OBSOLETE } */ /* OBSOLETE } */ /* OBSOLETE */ /* OBSOLETE /* */ /* OBSOLETE * Fetch an individual register (and supply it). */ /* OBSOLETE * return 0 on success, -1 on failure. */ /* OBSOLETE * NOTE: Assumes AMD's Binary Compatibility Standard for ptrace(). */ /* OBSOLETE */ */ /* OBSOLETE static void */ /* OBSOLETE fetch_register (int regno) */ /* OBSOLETE { */ /* OBSOLETE char buf[128]; */ /* OBSOLETE int val; */ /* OBSOLETE */ /* OBSOLETE if (CANNOT_FETCH_REGISTER (regno)) */ /* OBSOLETE { */ /* OBSOLETE val = -1; */ /* OBSOLETE supply_register (regno, &val); */ /* OBSOLETE } */ /* OBSOLETE else */ /* OBSOLETE { */ /* OBSOLETE errno = 0; */ /* OBSOLETE val = ptrace (PT_READ_U, PIDGET (inferior_ptid), */ /* OBSOLETE (PTRACE_ARG3_TYPE) register_addr (regno, 0), 0); */ /* OBSOLETE if (errno != 0) */ /* OBSOLETE { */ /* OBSOLETE sprintf (buf, "reading register %s (#%d)", REGISTER_NAME (regno), regno); */ /* OBSOLETE perror_with_name (buf); */ /* OBSOLETE } */ /* OBSOLETE else */ /* OBSOLETE { */ /* OBSOLETE supply_register (regno, &val); */ /* OBSOLETE } */ /* OBSOLETE } */ /* OBSOLETE } */ /* OBSOLETE */ /* OBSOLETE */ /* OBSOLETE /* */ /* OBSOLETE * Read AMD's Binary Compatibilty Standard conforming core file. */ /* OBSOLETE * struct ptrace_user is the first thing in the core file */ /* OBSOLETE * */ /* OBSOLETE * CORE_REG_SECT, CORE_REG_SIZE, WHICH, and REG_ADDR are all ignored. */ /* OBSOLETE */ */ /* OBSOLETE */ /* OBSOLETE static void */ /* OBSOLETE fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, */ /* OBSOLETE int which, CORE_ADDR reg_addr) */ /* OBSOLETE { */ /* OBSOLETE register int regno; */ /* OBSOLETE int val; */ /* OBSOLETE char buf[4]; */ /* OBSOLETE */ /* OBSOLETE for (regno = 0; regno < NUM_REGS; regno++) */ /* OBSOLETE { */ /* OBSOLETE if (!CANNOT_FETCH_REGISTER (regno)) */ /* OBSOLETE { */ /* OBSOLETE val = bfd_seek (core_bfd, (file_ptr) register_addr (regno, 0), SEEK_SET); */ /* OBSOLETE if (val < 0 || (val = bfd_read (buf, sizeof buf, 1, core_bfd)) < 0) */ /* OBSOLETE { */ /* OBSOLETE char *buffer = (char *) alloca (strlen (REGISTER_NAME (regno)) + 35); */ /* OBSOLETE strcpy (buffer, "Reading core register "); */ /* OBSOLETE strcat (buffer, REGISTER_NAME (regno)); */ /* OBSOLETE perror_with_name (buffer); */ /* OBSOLETE } */ /* OBSOLETE supply_register (regno, buf); */ /* OBSOLETE } */ /* OBSOLETE } */ /* OBSOLETE */ /* OBSOLETE /* Fake any registers that are in REGISTER_NAMES, but not available to gdb */ */ /* OBSOLETE registers_fetched (); */ /* OBSOLETE } */ /* OBSOLETE */ /* OBSOLETE */ /* OBSOLETE /* */ /* OBSOLETE * Takes a register number as defined in tm.h via REGISTER_NAMES, and maps */ /* OBSOLETE * it to an offset in a struct ptrace_user defined by AMD's BCS. */ /* OBSOLETE * That is, it defines the mapping between gdb register numbers and items in */ /* OBSOLETE * a struct ptrace_user. */ /* OBSOLETE * A register protection scheme is set up here. If a register not */ /* OBSOLETE * available to the user is specified in 'regno', then an address that */ /* OBSOLETE * will cause ptrace() to fail is returned. */ /* OBSOLETE */ */ /* OBSOLETE CORE_ADDR */ /* OBSOLETE register_addr (int regno, CORE_ADDR blockend) */ /* OBSOLETE { */ /* OBSOLETE if ((regno >= LR0_REGNUM) && (regno < LR0_REGNUM + 128)) */ /* OBSOLETE { */ /* OBSOLETE return (offsetof (struct ptrace_user, pt_lr[regno - LR0_REGNUM])); */ /* OBSOLETE } */ /* OBSOLETE else if ((regno >= GR96_REGNUM) && (regno < GR96_REGNUM + 32)) */ /* OBSOLETE { */ /* OBSOLETE return (offsetof (struct ptrace_user, pt_gr[regno - GR96_REGNUM])); */ /* OBSOLETE } */ /* OBSOLETE else */ /* OBSOLETE { */ /* OBSOLETE switch (regno) */ /* OBSOLETE { */ /* OBSOLETE case GR1_REGNUM: */ /* OBSOLETE return (offsetof (struct ptrace_user, pt_gr1)); */ /* OBSOLETE case CPS_REGNUM: */ /* OBSOLETE return (offsetof (struct ptrace_user, pt_psr)); */ /* OBSOLETE case NPC_REGNUM: */ /* OBSOLETE return (offsetof (struct ptrace_user, pt_pc0)); */ /* OBSOLETE case PC_REGNUM: */ /* OBSOLETE return (offsetof (struct ptrace_user, pt_pc1)); */ /* OBSOLETE case PC2_REGNUM: */ /* OBSOLETE return (offsetof (struct ptrace_user, pt_pc2)); */ /* OBSOLETE case IPC_REGNUM: */ /* OBSOLETE return (offsetof (struct ptrace_user, pt_ipc)); */ /* OBSOLETE case IPA_REGNUM: */ /* OBSOLETE return (offsetof (struct ptrace_user, pt_ipa)); */ /* OBSOLETE case IPB_REGNUM: */ /* OBSOLETE return (offsetof (struct ptrace_user, pt_ipb)); */ /* OBSOLETE case Q_REGNUM: */ /* OBSOLETE return (offsetof (struct ptrace_user, pt_q)); */ /* OBSOLETE case BP_REGNUM: */ /* OBSOLETE return (offsetof (struct ptrace_user, pt_bp)); */ /* OBSOLETE case FC_REGNUM: */ /* OBSOLETE return (offsetof (struct ptrace_user, pt_fc)); */ /* OBSOLETE default: */ /* OBSOLETE fprintf_filtered (gdb_stderr, "register_addr():Bad register %s (%d)\n", */ /* OBSOLETE REGISTER_NAME (regno), regno); */ /* OBSOLETE return (0xffffffff); /* Should make ptrace() fail */ */ /* OBSOLETE } */ /* OBSOLETE } */ /* OBSOLETE } */ /* OBSOLETE */ /* OBSOLETE */ /* OBSOLETE /* Register that we are able to handle ultra3 core file formats. */ /* OBSOLETE FIXME: is this really bfd_target_unknown_flavour? */ */ /* OBSOLETE */ /* OBSOLETE static struct core_fns ultra3_core_fns = */ /* OBSOLETE { */ /* OBSOLETE bfd_target_unknown_flavour, /* core_flavour */ */ /* OBSOLETE default_check_format, /* check_format */ */ /* OBSOLETE default_core_sniffer, /* core_sniffer */ */ /* OBSOLETE fetch_core_registers, /* core_read_registers */ */ /* OBSOLETE NULL /* next */ */ /* OBSOLETE }; */ /* OBSOLETE */ /* OBSOLETE void */ /* OBSOLETE _initialize_core_ultra3 (void) */ /* OBSOLETE { */ /* OBSOLETE add_core_fns (&ultra3_core_fns); */ /* OBSOLETE } */