/* Motorola m68k native support for Linux
- Copyright (C) 1996,1998 Free Software Foundation, Inc.
+ Copyright 1996, 1998, 2000, 2001 Free Software Foundation, Inc.
This file is part of GDB.
#include "inferior.h"
#include "language.h"
#include "gdbcore.h"
+#include "regcache.h"
#ifdef USG
#include <sys/types.h>
is stored. */
int
-m68k_linux_register_u_addr (blockend, regnum)
- int blockend;
- int regnum;
+m68k_linux_register_u_addr (int blockend, int regnum)
{
return (blockend + 4 * regmap[regnum]);
}
-/* Given a pointer to a general register set in /proc format (gregset_t *),
- unpack the register contents and supply them as gdb's idea of the current
- register values. */
+/* Given a pointer to a general register set in /proc format
+ (elf_gregset_t *), unpack the register contents and supply
+ them as gdb's idea of the current register values. */
/* Note both m68k-tdep.c and m68klinux-nat.c contain definitions
#ifndef USE_PROC_FS
+/* Prototypes for supply_gregset etc. */
+#include "gregset.h"
+
void
-supply_gregset (gregsetp)
- gregset_t *gregsetp;
+supply_gregset (elf_gregset_t *gregsetp)
{
int regi;
idea of the current floating point register values. */
void
-supply_fpregset (fpregsetp)
- fpregset_t *fpregsetp;
+supply_fpregset (elf_fpregset_t *fpregsetp)
{
int regi;
}
#endif
+
+\f
+/* Interpreting register set info found in core files. */
+
+/* Provide registers to GDB from a core file.
+
+ (We can't use the generic version of this function in
+ core-regset.c, because we need to use elf_gregset_t instead of
+ gregset_t.)
+
+ 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.
+
+ WHICH says which register set corelow suspects this is:
+ 0 --- the general-purpose register set, in elf_gregset_t format
+ 2 --- the floating-point register set, in elf_fpregset_t format
+
+ REG_ADDR isn't used on Linux. */
+
+static void
+fetch_core_registers (char *core_reg_sect, unsigned core_reg_size,
+ int which, CORE_ADDR reg_addr)
+{
+ elf_gregset_t gregset;
+ elf_fpregset_t fpregset;
+
+ switch (which)
+ {
+ case 0:
+ if (core_reg_size != sizeof (gregset))
+ warning ("Wrong size gregset in core file.");
+ else
+ {
+ memcpy (&gregset, core_reg_sect, sizeof (gregset));
+ supply_gregset (&gregset);
+ }
+ break;
+
+ case 2:
+ if (core_reg_size != sizeof (fpregset))
+ warning ("Wrong size fpregset in core file.");
+ else
+ {
+ memcpy (&fpregset, core_reg_sect, sizeof (fpregset));
+ supply_fpregset (&fpregset);
+ }
+ 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;
+ }
+}
\f
int
-kernel_u_size ()
+kernel_u_size (void)
{
return (sizeof (struct user));
}
/* Return non-zero if PC points into the signal trampoline. */
int
-in_sigtramp (pc)
- CORE_ADDR pc;
+in_sigtramp (CORE_ADDR pc)
{
CORE_ADDR sp;
char buf[TARGET_SHORT_BIT / TARGET_CHAR_BIT];
return 0;
}
+
+\f
+/* Register that we are able to handle Linux ELF core file formats. */
+
+static struct core_fns linux_elf_core_fns =
+{
+ bfd_target_elf_flavour, /* core_flavour */
+ default_check_format, /* check_format */
+ default_core_sniffer, /* core_sniffer */
+ fetch_core_registers, /* core_read_registers */
+ NULL /* next */
+};
+
+void
+_initialize_m68k_linux_nat ()
+{
+ add_core_fns (&linux_elf_core_fns);
+}