+/* Machine independent support for SVR4 core files for GDB.
+ Copyright 1993 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. */
+
+
+/* N O T E S
+
+This version of fetch_core_registers() is used by most systems that
+implement /proc. For these systems, the general registers are laid out
+the same way in both the core file and the gregset_p structure. The
+current exception to this is Irix-4.*, where the gregset_p structure is
+split up into two pieces in the core file.
+
+The general register and floating point register sets are manipulated by
+separate ioctl's. This file makes the assumption that if FP0_REGNUM is
+defined, then support for the floating point register set is desired,
+regardless of whether or not the actual target has floating point hardware.
+
+ */
+
+#include "defs.h"
+
+#include <time.h>
+#include <sys/procfs.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+
+#include "inferior.h"
+#include "target.h"
+#include "command.h"
+#include "gdbcore.h"
+
+/*
+
+GLOBAL FUNCTION
+
+ fetch_core_registers -- fetch current registers from core file data
+
+SYNOPSIS
+
+ void fetch_core_registers (char *core_reg_sect, unsigned core_reg_size,
+ int which, unsigned in reg_addr)
+
+DESCRIPTION
+
+ Read the values of either the general register set (WHICH equals 0)
+ or the floating point register set (WHICH equals 2) from the core
+ file data (pointed to by CORE_REG_SECT), and update gdb's idea of
+ their current values. The CORE_REG_SIZE parameter is ignored.
+
+NOTES
+
+ Use the indicated sizes to validate the gregset and fpregset
+ structures.
+*/
+
+void
+fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr)
+ char *core_reg_sect;
+ unsigned core_reg_size;
+ int which;
+ unsigned int reg_addr; /* Unused in this version */
+{
+ gregset_t gregset;
+ fpregset_t fpregset;
+
+ if (which == 0)
+ {
+ if (core_reg_size != sizeof (gregset))
+ {
+ warning ("wrong size gregset struct in core file");
+ }
+ else
+ {
+ memcpy ((char *) &gregset, core_reg_sect, sizeof (gregset));
+ supply_gregset (&gregset);
+ }
+ }
+ else if (which == 2)
+ {
+ if (core_reg_size != sizeof (fpregset))
+ {
+ warning ("wrong size fpregset struct in core file");
+ }
+ else
+ {
+ memcpy ((char *) &fpregset, core_reg_sect, sizeof (fpregset));
+#if defined (FP0_REGNUM)
+ supply_fpregset (&fpregset);
+#endif
+ }
+ }
+}