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[/] [or1k/] [trunk/] [insight/] [gdb/] [ultra3-nat.c] - Blame information for rev 1774

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1 578 markom 
/* OBSOLETE /* Native-dependent code for GDB, for NYU Ultra3 running Sym1 OS. */
2 
/* OBSOLETE    Copyright 1988, 1989, 1991, 1992, 1995, 1996, 1999, 2000, 2001 */
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/* OBSOLETE    Free Software Foundation, Inc. */
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/* OBSOLETE    Contributed by David Wood (wood@nyu.edu) at New York University. */
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/* OBSOLETE  */
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/* OBSOLETE    This file is part of GDB. */
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/* OBSOLETE  */
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/* OBSOLETE    This program is free software; you can redistribute it and/or modify */
9 
/* OBSOLETE    it under the terms of the GNU General Public License as published by */
10 
/* OBSOLETE    the Free Software Foundation; either version 2 of the License, or */
11 
/* OBSOLETE    (at your option) any later version. */
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/* OBSOLETE  */
13 
/* OBSOLETE    This program is distributed in the hope that it will be useful, */
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/* OBSOLETE    but WITHOUT ANY WARRANTY; without even the implied warranty of */
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/* OBSOLETE    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the */
16 
/* OBSOLETE    GNU General Public License for more details. */
17 
/* OBSOLETE  */
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/* OBSOLETE    You should have received a copy of the GNU General Public License */
19 
/* OBSOLETE    along with this program; if not, write to the Free Software */
20 
/* OBSOLETE    Foundation, Inc., 59 Temple Place - Suite 330, */
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/* OBSOLETE    Boston, MA 02111-1307, USA.  */ */
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/* OBSOLETE  */
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/* OBSOLETE #define DEBUG */
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/* OBSOLETE #include "defs.h" */
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/* OBSOLETE #include "frame.h" */
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/* OBSOLETE #include "inferior.h" */
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/* OBSOLETE #include "symtab.h" */
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/* OBSOLETE #include "value.h" */
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/* OBSOLETE #include "regcache.h" */
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/* OBSOLETE  */
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/* OBSOLETE #include <sys/types.h> */
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/* OBSOLETE #include <sys/param.h> */
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/* OBSOLETE #include <signal.h> */
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/* OBSOLETE #include <sys/ioctl.h> */
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/* OBSOLETE #include <fcntl.h> */
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/* OBSOLETE  */
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/* OBSOLETE #include "gdbcore.h" */
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/* OBSOLETE  */
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/* OBSOLETE #include <sys/file.h> */
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/* OBSOLETE #include "gdb_stat.h" */
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/* OBSOLETE  */
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/* OBSOLETE static void fetch_core_registers (char *, unsigned, int, CORE_ADDR); */
43 
/* OBSOLETE  */
44 
/* OBSOLETE /* Assumes support for AMD's Binary Compatibility Standard */
45 
/* OBSOLETE    for ptrace().  If you define ULTRA3, the ultra3 extensions to */
46 
/* OBSOLETE    ptrace() are used allowing the reading of more than one register */
47 
/* OBSOLETE    at a time.  */
48 
/* OBSOLETE  */
49 
/* OBSOLETE    This file assumes KERNEL_DEBUGGING is turned off.  This means */
50 
/* OBSOLETE    that if the user/gdb tries to read gr64-gr95 or any of the  */
51 
/* OBSOLETE    protected special registers we silently return -1 (see the */
52 
/* OBSOLETE    CANNOT_STORE/FETCH_REGISTER macros).  */ */
53 
/* OBSOLETE #define     ULTRA3 */
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/* OBSOLETE  */
55 
/* OBSOLETE #if !defined (offsetof) */
56 
/* OBSOLETE #define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER) */
57 
/* OBSOLETE #endif */
58 
/* OBSOLETE  */
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/* OBSOLETE extern int errno; */
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/* OBSOLETE struct ptrace_user pt_struct; */
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/* OBSOLETE  */
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/* OBSOLETE /* Get all available registers from the inferior.  Registers that are */
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/* OBSOLETE  * defined in REGISTER_NAMES, but not available to the user/gdb are */
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/* OBSOLETE  * supplied as -1.  This may include gr64-gr95 and the protected special */
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/* OBSOLETE  * purpose registers. */
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/* OBSOLETE  */ */
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/* OBSOLETE  */
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/* OBSOLETE void */
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/* OBSOLETE fetch_inferior_registers (int regno) */
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/* OBSOLETE { */
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/* OBSOLETE   register int i, j, ret_val = 0; */
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/* OBSOLETE   char buf[128]; */
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/* OBSOLETE  */
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/* OBSOLETE   if (regno != -1) */
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/* OBSOLETE     { */
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/* OBSOLETE       fetch_register (regno); */
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/* OBSOLETE       return; */
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/* OBSOLETE     } */
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/* OBSOLETE  */
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/* OBSOLETE /* Global Registers */ */
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/* OBSOLETE #ifdef ULTRA3 */
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/* OBSOLETE   errno = 0; */
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/* OBSOLETE   ptrace (PT_READ_STRUCT, PIDGET (inferior_ptid), */
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/* OBSOLETE       (PTRACE_ARG3_TYPE) register_addr (GR96_REGNUM, 0), */
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/* OBSOLETE       (int) &pt_struct.pt_gr[0], 32 * 4); */
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/* OBSOLETE   if (errno != 0) */
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/* OBSOLETE     { */
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/* OBSOLETE       perror_with_name ("reading global registers"); */
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/* OBSOLETE       ret_val = -1; */
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/* OBSOLETE     } */
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/* OBSOLETE   else */
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/* OBSOLETE     for (regno = GR96_REGNUM, j = 0; j < 32; regno++, j++) */
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/* OBSOLETE       { */
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/* OBSOLETE     supply_register (regno, &pt_struct.pt_gr[j]); */
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/* OBSOLETE       } */
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/* OBSOLETE #else */
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/* OBSOLETE   for (regno = GR96_REGNUM; !ret_val && regno < GR96_REGNUM + 32; regno++) */
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/* OBSOLETE     fetch_register (regno); */
99 
/* OBSOLETE #endif */
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/* OBSOLETE  */
101 
/* OBSOLETE /* Local Registers */ */
102 
/* OBSOLETE #ifdef ULTRA3 */
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/* OBSOLETE   errno = 0; */
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/* OBSOLETE   ptrace (PT_READ_STRUCT, PIDGET (inferior_ptid), */
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/* OBSOLETE       (PTRACE_ARG3_TYPE) register_addr (LR0_REGNUM, 0), */
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/* OBSOLETE       (int) &pt_struct.pt_lr[0], 128 * 4); */
107 
/* OBSOLETE   if (errno != 0) */
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/* OBSOLETE     { */
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/* OBSOLETE       perror_with_name ("reading local registers"); */
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/* OBSOLETE       ret_val = -1; */
111 
/* OBSOLETE     } */
112 
/* OBSOLETE   else */
113 
/* OBSOLETE     for (regno = LR0_REGNUM, j = 0; j < 128; regno++, j++) */
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/* OBSOLETE       { */
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/* OBSOLETE     supply_register (regno, &pt_struct.pt_lr[j]); */
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/* OBSOLETE       } */
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/* OBSOLETE #else */
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/* OBSOLETE   for (regno = LR0_REGNUM; !ret_val && regno < LR0_REGNUM + 128; regno++) */
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/* OBSOLETE     fetch_register (regno); */
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/* OBSOLETE #endif */
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/* OBSOLETE  */
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/* OBSOLETE /* Special Registers */ */
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/* OBSOLETE   fetch_register (GR1_REGNUM); */
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/* OBSOLETE   fetch_register (CPS_REGNUM); */
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/* OBSOLETE   fetch_register (PC_REGNUM); */
126 
/* OBSOLETE   fetch_register (NPC_REGNUM); */
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/* OBSOLETE   fetch_register (PC2_REGNUM); */
128 
/* OBSOLETE   fetch_register (IPC_REGNUM); */
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/* OBSOLETE   fetch_register (IPA_REGNUM); */
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/* OBSOLETE   fetch_register (IPB_REGNUM); */
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/* OBSOLETE   fetch_register (Q_REGNUM); */
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/* OBSOLETE   fetch_register (BP_REGNUM); */
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/* OBSOLETE   fetch_register (FC_REGNUM); */
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/* OBSOLETE  */
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/* OBSOLETE /* Fake any registers that are in REGISTER_NAMES, but not available to gdb */ */
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/* OBSOLETE   registers_fetched (); */
137 
/* OBSOLETE } */
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/* OBSOLETE  */
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/* OBSOLETE /* Store our register values back into the inferior. */
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/* OBSOLETE  * If REGNO is -1, do this for all registers. */
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/* OBSOLETE  * Otherwise, REGNO specifies which register (so we can save time).   */
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/* OBSOLETE  * NOTE: Assumes AMD's binary compatibility standard.  */
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/* OBSOLETE  */ */
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/* OBSOLETE  */
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/* OBSOLETE void */
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/* OBSOLETE store_inferior_registers (int regno) */
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/* OBSOLETE { */
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/* OBSOLETE   register unsigned int regaddr; */
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/* OBSOLETE   char buf[80]; */
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/* OBSOLETE  */
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/* OBSOLETE   if (regno >= 0) */
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/* OBSOLETE     { */
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/* OBSOLETE       if (CANNOT_STORE_REGISTER (regno)) */
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/* OBSOLETE     return; */
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/* OBSOLETE       regaddr = register_addr (regno, 0); */
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/* OBSOLETE       errno = 0; */
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/* OBSOLETE       ptrace (PT_WRITE_U, PIDGET (inferior_ptid), */
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/* OBSOLETE           (PTRACE_ARG3_TYPE) regaddr, read_register (regno)); */
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/* OBSOLETE       if (errno != 0) */
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/* OBSOLETE     { */
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/* OBSOLETE       sprintf (buf, "writing register %s (#%d)", REGISTER_NAME (regno), regno); */
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/* OBSOLETE       perror_with_name (buf); */
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/* OBSOLETE     } */
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/* OBSOLETE     } */
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/* OBSOLETE   else */
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/* OBSOLETE     { */
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/* OBSOLETE #ifdef ULTRA3 */
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/* OBSOLETE       pt_struct.pt_gr1 = read_register (GR1_REGNUM); */
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/* OBSOLETE       for (regno = GR96_REGNUM; regno < GR96_REGNUM + 32; regno++) */
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/* OBSOLETE     pt_struct.pt_gr[regno] = read_register (regno); */
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/* OBSOLETE       for (regno = LR0_REGNUM; regno < LR0_REGNUM + 128; regno++) */
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/* OBSOLETE     pt_struct.pt_gr[regno] = read_register (regno); */
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/* OBSOLETE       errno = 0; */
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/* OBSOLETE       ptrace (PT_WRITE_STRUCT, PIDGET (inferior_ptid), */
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/* OBSOLETE           (PTRACE_ARG3_TYPE) register_addr (GR1_REGNUM, 0), */
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/* OBSOLETE           (int) &pt_struct.pt_gr1, (1 * 32 * 128) * 4); */
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/* OBSOLETE       if (errno != 0) */
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/* OBSOLETE     { */
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/* OBSOLETE       sprintf (buf, "writing all local/global registers"); */
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/* OBSOLETE       perror_with_name (buf); */
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/* OBSOLETE     } */
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/* OBSOLETE       pt_struct.pt_psr = read_register (CPS_REGNUM); */
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/* OBSOLETE       pt_struct.pt_pc0 = read_register (NPC_REGNUM); */
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/* OBSOLETE       pt_struct.pt_pc1 = read_register (PC_REGNUM); */
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/* OBSOLETE       pt_struct.pt_pc2 = read_register (PC2_REGNUM); */
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/* OBSOLETE       pt_struct.pt_ipc = read_register (IPC_REGNUM); */
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/* OBSOLETE       pt_struct.pt_ipa = read_register (IPA_REGNUM); */
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/* OBSOLETE       pt_struct.pt_ipb = read_register (IPB_REGNUM); */
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/* OBSOLETE       pt_struct.pt_q = read_register (Q_REGNUM); */
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/* OBSOLETE       pt_struct.pt_bp = read_register (BP_REGNUM); */
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/* OBSOLETE       pt_struct.pt_fc = read_register (FC_REGNUM); */
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/* OBSOLETE       errno = 0; */
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/* OBSOLETE       ptrace (PT_WRITE_STRUCT, PIDGET (inferior_ptid), */
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/* OBSOLETE           (PTRACE_ARG3_TYPE) register_addr (CPS_REGNUM, 0), */
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/* OBSOLETE           (int) &pt_struct.pt_psr, (10) * 4); */
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/* OBSOLETE       if (errno != 0) */
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/* OBSOLETE     { */
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/* OBSOLETE       sprintf (buf, "writing all special registers"); */
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/* OBSOLETE       perror_with_name (buf); */
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/* OBSOLETE       return; */
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/* OBSOLETE     } */
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/* OBSOLETE #else */
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/* OBSOLETE       store_inferior_registers (GR1_REGNUM); */
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/* OBSOLETE       for (regno = GR96_REGNUM; regno < GR96_REGNUM + 32; regno++) */
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/* OBSOLETE     store_inferior_registers (regno); */
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/* OBSOLETE       for (regno = LR0_REGNUM; regno < LR0_REGNUM + 128; regno++) */
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/* OBSOLETE     store_inferior_registers (regno); */
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/* OBSOLETE       store_inferior_registers (CPS_REGNUM); */
209 
/* OBSOLETE       store_inferior_registers (PC_REGNUM); */
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/* OBSOLETE       store_inferior_registers (NPC_REGNUM); */
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/* OBSOLETE       store_inferior_registers (PC2_REGNUM); */
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/* OBSOLETE       store_inferior_registers (IPC_REGNUM); */
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/* OBSOLETE       store_inferior_registers (IPA_REGNUM); */
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/* OBSOLETE       store_inferior_registers (IPB_REGNUM); */
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/* OBSOLETE       store_inferior_registers (Q_REGNUM); */
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/* OBSOLETE       store_inferior_registers (BP_REGNUM); */
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/* OBSOLETE       store_inferior_registers (FC_REGNUM); */
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/* OBSOLETE #endif /* ULTRA3 */ */
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/* OBSOLETE     } */
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/* OBSOLETE } */
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/* OBSOLETE  */
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/* OBSOLETE /*  */
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/* OBSOLETE  * Fetch an individual register (and supply it). */
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/* OBSOLETE  * return 0 on success, -1 on failure. */
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/* OBSOLETE  * NOTE: Assumes AMD's Binary Compatibility Standard for ptrace(). */
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/* OBSOLETE  */ */
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/* OBSOLETE static void */
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/* OBSOLETE fetch_register (int regno) */
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/* OBSOLETE { */
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/* OBSOLETE   char buf[128]; */
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/* OBSOLETE   int val; */
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/* OBSOLETE  */
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/* OBSOLETE   if (CANNOT_FETCH_REGISTER (regno)) */
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/* OBSOLETE     { */
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/* OBSOLETE       val = -1; */
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/* OBSOLETE       supply_register (regno, &val); */
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/* OBSOLETE     } */
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/* OBSOLETE   else */
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/* OBSOLETE     { */
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/* OBSOLETE       errno = 0; */
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/* OBSOLETE       val = ptrace (PT_READ_U, PIDGET (inferior_ptid), */
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/* OBSOLETE                 (PTRACE_ARG3_TYPE) register_addr (regno, 0), 0); */
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/* OBSOLETE       if (errno != 0) */
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/* OBSOLETE     { */
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/* OBSOLETE       sprintf (buf, "reading register %s (#%d)", REGISTER_NAME (regno), regno); */
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/* OBSOLETE       perror_with_name (buf); */
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/* OBSOLETE     } */
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/* OBSOLETE       else */
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/* OBSOLETE     { */
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/* OBSOLETE       supply_register (regno, &val); */
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/* OBSOLETE     } */
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/* OBSOLETE     } */
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/* OBSOLETE } */
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/* OBSOLETE  */
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/* OBSOLETE  */
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/* OBSOLETE /*  */
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/* OBSOLETE  * Read AMD's Binary Compatibilty Standard conforming core file. */
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/* OBSOLETE  * struct ptrace_user is the first thing in the core file */
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/* OBSOLETE  * */
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/* OBSOLETE  * CORE_REG_SECT, CORE_REG_SIZE, WHICH, and REG_ADDR are all ignored. */
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/* OBSOLETE  */ */
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/* OBSOLETE  */
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/* OBSOLETE static void */
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/* OBSOLETE fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, */
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/* OBSOLETE                   int which, CORE_ADDR reg_addr) */
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/* OBSOLETE { */
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/* OBSOLETE   register int regno; */
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/* OBSOLETE   int val; */
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/* OBSOLETE   char buf[4]; */
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/* OBSOLETE  */
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/* OBSOLETE   for (regno = 0; regno < NUM_REGS; regno++) */
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/* OBSOLETE     { */
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/* OBSOLETE       if (!CANNOT_FETCH_REGISTER (regno)) */
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/* OBSOLETE     { */
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/* OBSOLETE       val = bfd_seek (core_bfd, (file_ptr) register_addr (regno, 0), SEEK_SET); */
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/* OBSOLETE       if (val < 0 || (val = bfd_read (buf, sizeof buf, 1, core_bfd)) < 0) */
277 
/* OBSOLETE         { */
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/* OBSOLETE           char *buffer = (char *) alloca (strlen (REGISTER_NAME (regno)) + 35); */
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/* OBSOLETE           strcpy (buffer, "Reading core register "); */
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/* OBSOLETE           strcat (buffer, REGISTER_NAME (regno)); */
281 
/* OBSOLETE           perror_with_name (buffer); */
282 
/* OBSOLETE         } */
283 
/* OBSOLETE       supply_register (regno, buf); */
284 
/* OBSOLETE     } */
285 
/* OBSOLETE     } */
286 
/* OBSOLETE  */
287 
/* OBSOLETE   /* Fake any registers that are in REGISTER_NAMES, but not available to gdb */ */
288 
/* OBSOLETE   registers_fetched (); */
289 
/* OBSOLETE } */
290 
/* OBSOLETE  */
291 
/* OBSOLETE  */
292 
/* OBSOLETE /*   */
293 
/* OBSOLETE  * Takes a register number as defined in tm.h via REGISTER_NAMES, and maps */
294 
/* OBSOLETE  * it to an offset in a struct ptrace_user defined by AMD's BCS. */
295 
/* OBSOLETE  * That is, it defines the mapping between gdb register numbers and items in */
296 
/* OBSOLETE  * a struct ptrace_user. */
297 
/* OBSOLETE  * A register protection scheme is set up here.  If a register not */
298 
/* OBSOLETE  * available to the user is specified in 'regno', then an address that */
299 
/* OBSOLETE  * will cause ptrace() to fail is returned. */
300 
/* OBSOLETE  */ */
301 
/* OBSOLETE CORE_ADDR */
302 
/* OBSOLETE register_addr (int regno, CORE_ADDR blockend) */
303 
/* OBSOLETE { */
304 
/* OBSOLETE   if ((regno >= LR0_REGNUM) && (regno < LR0_REGNUM + 128)) */
305 
/* OBSOLETE     { */
306 
/* OBSOLETE       return (offsetof (struct ptrace_user, pt_lr[regno - LR0_REGNUM])); */
307 
/* OBSOLETE     } */
308 
/* OBSOLETE   else if ((regno >= GR96_REGNUM) && (regno < GR96_REGNUM + 32)) */
309 
/* OBSOLETE     { */
310 
/* OBSOLETE       return (offsetof (struct ptrace_user, pt_gr[regno - GR96_REGNUM])); */
311 
/* OBSOLETE     } */
312 
/* OBSOLETE   else */
313 
/* OBSOLETE     { */
314 
/* OBSOLETE       switch (regno) */
315 
/* OBSOLETE     { */
316 
/* OBSOLETE     case GR1_REGNUM: */
317 
/* OBSOLETE       return (offsetof (struct ptrace_user, pt_gr1)); */
318 
/* OBSOLETE     case CPS_REGNUM: */
319 
/* OBSOLETE       return (offsetof (struct ptrace_user, pt_psr)); */
320 
/* OBSOLETE     case NPC_REGNUM: */
321 
/* OBSOLETE       return (offsetof (struct ptrace_user, pt_pc0)); */
322 
/* OBSOLETE     case PC_REGNUM: */
323 
/* OBSOLETE       return (offsetof (struct ptrace_user, pt_pc1)); */
324 
/* OBSOLETE     case PC2_REGNUM: */
325 
/* OBSOLETE       return (offsetof (struct ptrace_user, pt_pc2)); */
326 
/* OBSOLETE     case IPC_REGNUM: */
327 
/* OBSOLETE       return (offsetof (struct ptrace_user, pt_ipc)); */
328 
/* OBSOLETE     case IPA_REGNUM: */
329 
/* OBSOLETE       return (offsetof (struct ptrace_user, pt_ipa)); */
330 
/* OBSOLETE     case IPB_REGNUM: */
331 
/* OBSOLETE       return (offsetof (struct ptrace_user, pt_ipb)); */
332 
/* OBSOLETE     case Q_REGNUM: */
333 
/* OBSOLETE       return (offsetof (struct ptrace_user, pt_q)); */
334 
/* OBSOLETE     case BP_REGNUM: */
335 
/* OBSOLETE       return (offsetof (struct ptrace_user, pt_bp)); */
336 
/* OBSOLETE     case FC_REGNUM: */
337 
/* OBSOLETE       return (offsetof (struct ptrace_user, pt_fc)); */
338 
/* OBSOLETE     default: */
339 
/* OBSOLETE       fprintf_filtered (gdb_stderr, "register_addr():Bad register %s (%d)\n", */
340 
/* OBSOLETE                         REGISTER_NAME (regno), regno); */
341 
/* OBSOLETE       return (0xffffffff);  /* Should make ptrace() fail */ */
342 
/* OBSOLETE     } */
343 
/* OBSOLETE     } */
344 
/* OBSOLETE } */
345 
/* OBSOLETE  */
346 
/* OBSOLETE  */
347 
/* OBSOLETE /* Register that we are able to handle ultra3 core file formats. */
348 
/* OBSOLETE    FIXME: is this really bfd_target_unknown_flavour? */ */
349 
/* OBSOLETE  */
350 
/* OBSOLETE static struct core_fns ultra3_core_fns = */
351 
/* OBSOLETE { */
352 
/* OBSOLETE   bfd_target_unknown_flavour,               /* core_flavour */ */
353 
/* OBSOLETE   default_check_format,                     /* check_format */ */
354 
/* OBSOLETE   default_core_sniffer,                     /* core_sniffer */ */
355 
/* OBSOLETE   fetch_core_registers,                     /* core_read_registers */ */
356 
/* OBSOLETE   NULL                                      /* next */ */
357 
/* OBSOLETE }; */
358 
/* OBSOLETE  */
359 
/* OBSOLETE void */
360 
/* OBSOLETE _initialize_core_ultra3 (void) */
361 
/* OBSOLETE { */
362 
/* OBSOLETE   add_core_fns (&ultra3_core_fns); */
363 
/* OBSOLETE } */

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