/* Machine independent GDB support for core files on systems using "regsets".
- Copyright 1993-1998 Free Software Foundation, Inc.
+
+ Copyright (C) 1993-2017 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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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. */
-
-
-/* N O T E S
-
- This file 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.
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
- 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.
-
- */
+/* This file is used by most systems that use ELF for their core
+ dumps. This includes most systems that have SVR4-ish variant of
+ /proc. For these systems, the registers are laid out the same way
+ in core files as in the gregset_t and fpregset_t structures that
+ are used in the interaction with /proc (Irix 4 is an exception and
+ therefore doesn't use this file). Quite a few systems without a
+ SVR4-ish /proc define these structures too, and can make use of
+ this code too. */
#include "defs.h"
+#include "command.h"
+#include "gdbcore.h"
+#include "inferior.h"
+#include "target.h"
+#include "regcache.h"
+#include <fcntl.h>
#include <time.h>
#ifdef HAVE_SYS_PROCFS_H
#include <sys/procfs.h>
#endif
-#include <fcntl.h>
-#include <errno.h>
-#include "gdb_string.h"
-
-#include "inferior.h"
-#include "target.h"
-#include "command.h"
-#include "gdbcore.h"
-static void fetch_core_registers PARAMS ((char *, unsigned, int, CORE_ADDR));
+/* Prototypes for supply_gregset etc. */
+#include "gregset.h"
-void _initialize_core_regset PARAMS ((void));
+/* Provide registers to GDB from a core file.
-/*
+ CORE_REG_SECT points to an array of bytes, which are the contents
+ of a `note' from a core file which BFD thinks might contain
+ register contents. CORE_REG_SIZE is its size.
- GLOBAL FUNCTION
+ WHICH says which register set corelow suspects this is:
+ 0 --- the general-purpose register set, in gregset_t format
+ 2 --- the floating-point register set, in fpregset_t format
- fetch_core_registers -- fetch current registers from core file
-
- SYNOPSIS
-
- void fetch_core_registers (char *core_reg_sect,
- unsigned core_reg_size,
- int which, CORE_ADDR 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.
- */
+ REG_ADDR is ignored. */
static void
-fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr)
- char *core_reg_sect;
- unsigned core_reg_size;
- int which;
- CORE_ADDR reg_addr; /* Unused in this version */
+fetch_core_registers (struct regcache *regcache,
+ char *core_reg_sect,
+ unsigned core_reg_size,
+ int which,
+ CORE_ADDR reg_addr)
{
-#if defined (HAVE_GREGSET_T) && defined (HAVE_FPREGSET_T)
- gregset_t gregset;
- fpregset_t fpregset;
+ gdb_gregset_t gregset;
+ gdb_fpregset_t fpregset;
+ gdb_gregset_t *gregset_p = &gregset;
+ gdb_fpregset_t *fpregset_p = &fpregset;
- if (which == 0)
+ switch (which)
{
+ case 0:
if (core_reg_size != sizeof (gregset))
- {
- warning ("wrong size gregset struct in core file");
- }
+ warning (_("Wrong size gregset in core file."));
else
{
- memcpy ((char *) &gregset, core_reg_sect, sizeof (gregset));
- supply_gregset (&gregset);
+ memcpy (&gregset, core_reg_sect, sizeof (gregset));
+ supply_gregset (regcache, (const gdb_gregset_t *) gregset_p);
}
- }
- else if (which == 2)
- {
+ break;
+
+ case 2:
if (core_reg_size != sizeof (fpregset))
- {
- warning ("wrong size fpregset struct in core file");
- }
+ warning (_("Wrong size fpregset in core file."));
else
{
- memcpy ((char *) &fpregset, core_reg_sect, sizeof (fpregset));
-#if defined (FP0_REGNUM)
- supply_fpregset (&fpregset);
-#endif
+ memcpy (&fpregset, core_reg_sect, sizeof (fpregset));
+ if (gdbarch_fp0_regnum (get_regcache_arch (regcache)) >= 0)
+ supply_fpregset (regcache,
+ (const gdb_fpregset_t *) fpregset_p);
}
+ break;
+
+ default:
+ /* We've covered all the kinds of registers we know about here,
+ so this must be something we wouldn't know what to do with
+ anyway. Just ignore it. */
+ break;
}
-#endif /* defined(HAVE_GREGSET_T) && defined (HAVE_FPREGSET_T) */
}
\f
-/* Register that we are able to handle ELF file formats using standard
- procfs "regset" structures. */
+/* Register that we are able to handle ELF core file formats using
+ standard procfs "regset" structures. */
static struct core_fns regset_core_fns =
{
NULL /* next */
};
+/* Provide a prototype to silence -Wmissing-prototypes. */
+extern void _initialize_core_regset (void);
+
void
-_initialize_core_regset ()
+_initialize_core_regset (void)
{
- add_core_fns (®set_core_fns);
+ deprecated_add_core_fns (®set_core_fns);
}
projects / thirdparty / binutils-gdb.git / blobdiff