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[/] [or1k/] [tags/] [tn_m001/] [gdb-5.0/] [gdb/] [delta68-nat.c] - Rev 1765
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/* Functions specific to running gdb native on a Motorola Delta Series sysV68. Copyright (C) 1993, 1997-98, Free Software Foundation, Inc. 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 "defs.h" #include <sys/signal.h> /* for MAXSIG in sys/user.h */ #include <sys/types.h> /* for ushort in sys/dir.h */ #include <sys/dir.h> /* for struct direct in sys/user.h */ #include <sys/user.h> #include <nlist.h> #if !defined (offsetof) #define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER) #endif /* Return the address in the core dump or inferior of register REGNO. BLOCKEND is the address of the end of the user structure. */ CORE_ADDR register_addr (regno, blockend) int regno; CORE_ADDR blockend; { static int sysv68reg[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, -1, 15, 16}; if (regno >= 0 && regno < sizeof (sysv68reg) / sizeof (sysv68reg[0])) return blockend + sysv68reg[regno] * 4; else if (regno < FPC_REGNUM) return offsetof (struct user, u_fpu.regs.reg[regno - FP0_REGNUM][0]); else if (regno == FPC_REGNUM) return offsetof (struct user, u_fpu.regs.control); else if (regno == FPS_REGNUM) return offsetof (struct user, u_fpu.regs.status); else if (regno == FPI_REGNUM) return offsetof (struct user, u_fpu.regs.iaddr); else { fprintf_unfiltered (gdb_stderr, "\ Internal error: invalid register number %d in REGISTER_U_ADDR\n", regno); return blockend; } } CORE_ADDR kernel_u_addr; /* Read the value of the u area from the kernel. */ void _initialize_delta68_nat () { struct nlist nl[2]; nl[0].n_name = "u"; nl[1].n_name = NULL; if (nlist ("/sysV68", nl) == 0 && nl[0].n_scnum != 0) kernel_u_addr = nl[0].n_value; else { perror ("Cannot get kernel u area address"); exit (1); } } clear_insn_cache () { #ifdef MCT_TEXT /* in sys/signal.h on sysV68 R3V7.1 */ memctl (0, 4096, MCT_TEXT); #endif } kernel_u_size () { return sizeof (struct user); }