-/* Extract registers from a "standard" core file, for GDB.
- Copyright (C) 1988-1991 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-/* core.c is supposed to be the more machine-independent aspects of this;
- this file is more machine-specific. */
-
-#include "defs.h"
-#include "gdbcore.h"
-#include <stdio.h>
-
-/* These are needed on various systems to expand REGISTER_U_ADDR. */
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/dir.h>
-#include <sys/file.h>
-#include <sys/stat.h>
-#include <sys/user.h>
-#ifndef USG
-#include <sys/ptrace.h>
-#endif
-
-
-/* Extract the register values out of the core file and store
- them where `read_register' will find them.
-
- CORE_REG_SECT points to the register values themselves, read into memory.
- CORE_REG_SIZE is the size of that area.
- WHICH says which set of registers we are handling (0 = int, 2 = float
- on machines where they are discontiguous).
- REG_ADDR is the offset from u.u_ar0 to the register values relative to
- core_reg_sect. This is used with old-fashioned core files to
- locate the registers in a large upage-plus-stack ".reg" section.
- Original upage address X is at location core_reg_sect+x+reg_addr.
- */
-
-void
-fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr)
- char *core_reg_sect;
- unsigned core_reg_size;
- int which;
- unsigned reg_addr;
-{
- register int regno;
- register unsigned int addr;
- int bad_reg = -1;
- register reg_ptr = -reg_addr; /* Original u.u_ar0 is -reg_addr. */
-
- /* If u.u_ar0 was an absolute address in the core file, relativize it now,
- so we can use it as an offset into core_reg_sect. When we're done,
- "register 0" will be at core_reg_sect+reg_ptr, and we can use
- register_addr to offset to the other registers. If this is a modern
- core file without a upage, reg_ptr will be zero and this is all a big
- NOP. */
- if (reg_ptr > core_reg_size)
- reg_ptr -= KERNEL_U_ADDR;
- if (reg_ptr > core_reg_size)
- fprintf (stderr, "Can't find registers in core file\n");
-
- for (regno = 0; regno < NUM_REGS; regno++)
- {
- addr = register_addr (regno, reg_ptr);
- if (addr >= core_reg_size) {
- if (bad_reg < 0)
- bad_reg = regno;
- } else {
- if (regno == PCOQ_HEAD_REGNUM || regno == PCOQ_TAIL_REGNUM)
- core_reg_sect[addr +3] &= ~0x3;
- supply_register (regno, core_reg_sect + addr);
- }
- }
- if (bad_reg > 0)
- {
- error ("Register %s not found in core file.", reg_names[bad_reg]);
- }
-}
-
-
-#ifdef REGISTER_U_ADDR
-
-/* Return the address in the core dump or inferior of register REGNO.
- BLOCKEND is the address of the end of the user structure. */
-
-unsigned int
-register_addr (regno, blockend)
- int regno;
- int blockend;
-{
- int addr;
-
- if (regno < 0 || regno >= NUM_REGS)
- error ("Invalid register number %d.", regno);
-
- REGISTER_U_ADDR (addr, blockend, regno);
-
- return addr;
-}
-
-#endif /* REGISTER_U_ADDR */
-
-
-
-
-
-
-