/* Target-dependent code for Motorola 68000 BSD's.
- Copyright 2004, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2004-2015 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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "arch-utils.h"
#include "regset.h"
#include "trad-frame.h"
#include "tramp-frame.h"
-
-#include "gdb_assert.h"
-#include "gdb_string.h"
+#include "gdbtypes.h"
#include "m68k-tdep.h"
#include "solib-svr4.h"
#define M68KBSD_SIZEOF_FPREGS (((8 * 3) + 3) * 4)
int
-m68kbsd_fpreg_offset (int regnum)
+m68kbsd_fpreg_offset (struct gdbarch *gdbarch, int regnum)
{
+ int fp_len = TYPE_LENGTH (gdbarch_register_type (gdbarch, regnum));
+
if (regnum >= M68K_FPC_REGNUM)
- return 8 * 12 + (regnum - M68K_FPC_REGNUM) * 4;
+ return 8 * fp_len + (regnum - M68K_FPC_REGNUM) * 4;
- return (regnum - M68K_FP0_REGNUM) * 12;
+ return (regnum - M68K_FP0_REGNUM) * fp_len;
}
/* Supply register REGNUM from the buffer specified by FPREGS and LEN
struct regcache *regcache,
int regnum, const void *fpregs, size_t len)
{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
const gdb_byte *regs = fpregs;
int i;
for (i = M68K_FP0_REGNUM; i <= M68K_PC_REGNUM; i++)
{
if (regnum == i || regnum == -1)
- regcache_raw_supply (regcache, i, regs + m68kbsd_fpreg_offset (i));
+ regcache_raw_supply (regcache, i,
+ regs + m68kbsd_fpreg_offset (gdbarch, i));
}
}
/* Motorola 68000 register sets. */
-static struct regset m68kbsd_gregset =
+static const struct regset m68kbsd_gregset =
{
NULL,
- m68kbsd_supply_gregset
+ m68kbsd_supply_gregset,
+ NULL,
+ REGSET_VARIABLE_SIZE
};
-static struct regset m68kbsd_fpregset =
+static const struct regset m68kbsd_fpregset =
{
NULL,
m68kbsd_supply_fpregset
};
-/* Return the appropriate register set for the core section identified
- by SECT_NAME and SECT_SIZE. */
+/* Iterate over core file register note sections. */
-static const struct regset *
-m68kbsd_regset_from_core_section (struct gdbarch *gdbarch,
- const char *sect_name, size_t sect_size)
+static void
+m68kbsd_iterate_over_regset_sections (struct gdbarch *gdbarch,
+ iterate_over_regset_sections_cb *cb,
+ void *cb_data,
+ const struct regcache *regcache)
{
- if (strcmp (sect_name, ".reg") == 0 && sect_size >= M68KBSD_SIZEOF_GREGS)
- return &m68kbsd_gregset;
-
- if (strcmp (sect_name, ".reg2") == 0 && sect_size >= M68KBSD_SIZEOF_FPREGS)
- return &m68kbsd_fpregset;
-
- return NULL;
+ cb (".reg", M68KBSD_SIZEOF_GREGS, &m68kbsd_gregset, NULL, cb_data);
+ cb (".reg2", M68KBSD_SIZEOF_FPREGS, &m68kbsd_fpregset, NULL, cb_data);
}
\f
static void
m68kobsd_sigtramp_cache_init (const struct tramp_frame *self,
- struct frame_info *next_frame,
+ struct frame_info *this_frame,
struct trad_frame_cache *this_cache,
CORE_ADDR func)
{
CORE_ADDR addr, base, pc;
int regnum;
- base = frame_unwind_register_unsigned (next_frame, M68K_SP_REGNUM);
+ base = get_frame_register_unsigned (this_frame, M68K_SP_REGNUM);
/* The 'addql #4,%sp' instruction at offset 8 adjusts the stack
pointer. Adjust the frame base accordingly. */
- pc = frame_unwind_register_unsigned (next_frame, M68K_PC_REGNUM);
+ pc = get_frame_register_unsigned (this_frame, M68K_PC_REGNUM);
if ((pc - func) > 8)
base -= 4;
/* Get frame pointer, stack pointer, program counter and processor
state from `struct sigcontext'. */
- addr = get_frame_memory_unsigned (next_frame, base + 8, 4);
+ addr = get_frame_memory_unsigned (this_frame, base + 8, 4);
trad_frame_set_reg_addr (this_cache, M68K_FP_REGNUM, addr + 8);
trad_frame_set_reg_addr (this_cache, M68K_SP_REGNUM, addr + 12);
trad_frame_set_reg_addr (this_cache, M68K_PC_REGNUM, addr + 20);
/* The sc_ap member of `struct sigcontext' points to additional
hardware state. Here we find the missing registers. */
- addr = get_frame_memory_unsigned (next_frame, addr + 16, 4) + 4;
+ addr = get_frame_memory_unsigned (this_frame, addr + 16, 4) + 4;
for (regnum = M68K_D0_REGNUM; regnum < M68K_FP_REGNUM; regnum++, addr += 4)
trad_frame_set_reg_addr (this_cache, regnum, addr);
tdep->jb_pc = 5;
tdep->jb_elt_size = 4;
- set_gdbarch_regset_from_core_section
- (gdbarch, m68kbsd_regset_from_core_section);
+ set_gdbarch_decr_pc_after_break (gdbarch, 2);
+
+ set_gdbarch_iterate_over_regset_sections
+ (gdbarch, m68kbsd_iterate_over_regset_sections);
}
/* OpenBSD and NetBSD a.out. */
projects / deliverable / binutils-gdb.git / blobdiff