/* Machine independent GDB support for core files on systems using "regsets".
- Copyright 1993-1998 Free Software Foundation, Inc.
-This file is part of GDB.
+ Copyright (C) 1993-2017 Free Software Foundation, Inc.
-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 file is part of GDB.
-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.
+ 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 3 of the License, or
+ (at your option) any later version.
-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. */
+ 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, see <http://www.gnu.org/licenses/>. */
-/* 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.
-
-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));
-
-void _initialize_core_regset PARAMS ((void));
-/*
+/* Prototypes for supply_gregset etc. */
+#include "gregset.h"
-GLOBAL FUNCTION
+/* Provide registers to GDB from a core file.
- fetch_core_registers -- fetch current registers from 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.
-SYNOPSIS
+ 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
- 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 =
{
- bfd_target_elf_flavour,
- fetch_core_registers,
- NULL
+ bfd_target_elf_flavour, /* core_flavour */
+ default_check_format, /* check_format */
+ default_core_sniffer, /* core_sniffer */
+ fetch_core_registers, /* core_read_registers */
+ 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