/* Target-dependent code for the Toshiba MeP for GDB, the GNU debugger.
- Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
- 2011 Free Software Foundation, Inc.
+ Copyright (C) 2001-2015 Free Software Foundation, Inc.
Contributed by Red Hat, Inc.
#include "gdbtypes.h"
#include "gdbcmd.h"
#include "gdbcore.h"
-#include "gdb_string.h"
#include "value.h"
#include "inferior.h"
#include "dis-asm.h"
#include "cgen/bitset.h"
#include "infcall.h"
-#include "gdb_assert.h"
-
/* Get the user's customized MeP coprocessor register names from
libopcodes. */
#include "opcodes/mep-desc.h"
mask contains any of the me_module's coprocessor ISAs,
specifically excluding the generic coprocessor register sets. */
- CGEN_CPU_DESC desc = gdbarch_tdep (target_gdbarch)->cpu_desc;
+ CGEN_CPU_DESC desc = gdbarch_tdep (target_gdbarch ())->cpu_desc;
const CGEN_HW_ENTRY *hw;
if (me_module == CONFIG_NONE)
return regval;
}
else
- return gdbarch_tdep (target_gdbarch)->me_module;
+ return gdbarch_tdep (target_gdbarch ())->me_module;
}
return pc;
}
-static void
-mep_write_pc (struct regcache *regcache, CORE_ADDR pc)
-{
- regcache_cooked_write_unsigned (regcache, MEP_PC_REGNUM, pc);
-}
-
-
-static void
+static enum register_status
mep_pseudo_cr32_read (struct gdbarch *gdbarch,
struct regcache *regcache,
int cookednum,
void *buf)
{
+ enum register_status status;
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
/* Read the raw register into a 64-bit buffer, and then return the
appropriate end of that buffer. */
int rawnum = mep_pseudo_to_raw[cookednum];
- char buf64[8];
+ gdb_byte buf64[8];
gdb_assert (TYPE_LENGTH (register_type (gdbarch, rawnum)) == sizeof (buf64));
gdb_assert (TYPE_LENGTH (register_type (gdbarch, cookednum)) == 4);
- regcache_raw_read (regcache, rawnum, buf64);
- /* Slow, but legible. */
- store_unsigned_integer (buf, 4, byte_order,
- extract_unsigned_integer (buf64, 8, byte_order));
+ status = regcache_raw_read (regcache, rawnum, buf64);
+ if (status == REG_VALID)
+ {
+ /* Slow, but legible. */
+ store_unsigned_integer (buf, 4, byte_order,
+ extract_unsigned_integer (buf64, 8, byte_order));
+ }
+ return status;
}
-static void
+static enum register_status
mep_pseudo_cr64_read (struct gdbarch *gdbarch,
struct regcache *regcache,
int cookednum,
void *buf)
{
- regcache_raw_read (regcache, mep_pseudo_to_raw[cookednum], buf);
+ return regcache_raw_read (regcache, mep_pseudo_to_raw[cookednum], buf);
}
-static void
+static enum register_status
mep_pseudo_register_read (struct gdbarch *gdbarch,
struct regcache *regcache,
int cookednum,
{
if (IS_CSR_REGNUM (cookednum)
|| IS_CCR_REGNUM (cookednum))
- regcache_raw_read (regcache, mep_pseudo_to_raw[cookednum], buf);
+ return regcache_raw_read (regcache, mep_pseudo_to_raw[cookednum], buf);
else if (IS_CR32_REGNUM (cookednum)
|| IS_FP_CR32_REGNUM (cookednum))
- mep_pseudo_cr32_read (gdbarch, regcache, cookednum, buf);
+ return mep_pseudo_cr32_read (gdbarch, regcache, cookednum, buf);
else if (IS_CR64_REGNUM (cookednum)
|| IS_FP_CR64_REGNUM (cookednum))
- mep_pseudo_cr64_read (gdbarch, regcache, cookednum, buf);
+ return mep_pseudo_cr64_read (gdbarch, regcache, cookednum, buf);
else
gdb_assert_not_reached ("unexpected pseudo register");
}
/* Expand the 32-bit value into a 64-bit value, and write that to
the pseudoregister. */
int rawnum = mep_pseudo_to_raw[cookednum];
- char buf64[8];
+ gdb_byte buf64[8];
gdb_assert (TYPE_LENGTH (register_type (gdbarch, rawnum)) == sizeof (buf64));
gdb_assert (TYPE_LENGTH (register_type (gdbarch, cookednum)) == 4);
anyway. */
static CORE_ADDR
-mep_get_insn (struct gdbarch *gdbarch, CORE_ADDR pc, long *insn)
+mep_get_insn (struct gdbarch *gdbarch, CORE_ADDR pc, unsigned long *insn)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int pc_in_vliw_section;
int vliw_mode;
int insn_len;
- char buf[2];
+ gdb_byte buf[2];
*insn = 0;
static CORE_ADDR
mep_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
{
- char *name;
+ const char *name;
CORE_ADDR func_addr, func_end;
struct mep_prologue p;
stop_addr = func_start;
mep_analyze_prologue (get_frame_arch (this_frame),
- func_start, stop_addr, *this_prologue_cache);
+ func_start, stop_addr,
+ (struct mep_prologue *) *this_prologue_cache);
}
- return *this_prologue_cache;
+ return (struct mep_prologue *) *this_prologue_cache;
}
static const struct frame_unwind mep_frame_unwind = {
NORMAL_FRAME,
+ default_frame_unwind_stop_reason,
mep_frame_this_id,
mep_frame_prev_register,
NULL,
}
static enum return_value_convention
-mep_return_value (struct gdbarch *gdbarch, struct type *func_type,
+mep_return_value (struct gdbarch *gdbarch, struct value *function,
struct type *type, struct regcache *regcache,
gdb_byte *readbuf, const gdb_byte *writebuf)
{
for (i = 0; i < argc; i++)
{
- unsigned arg_size = TYPE_LENGTH (value_type (argv[i]));
ULONGEST value;
/* Arguments that fit in a GPR get expanded to fill the GPR. */
- if (arg_size <= MEP_GPR_SIZE)
+ if (TYPE_LENGTH (value_type (argv[i])) <= MEP_GPR_SIZE)
value = extract_unsigned_integer (value_contents (argv[i]),
TYPE_LENGTH (value_type (argv[i])),
byte_order);
}
else
{
- char buf[MEP_GPR_SIZE];
+ gdb_byte buf[MEP_GPR_SIZE];
store_unsigned_integer (buf, MEP_GPR_SIZE, byte_order, value);
write_memory (arg_stack, buf, MEP_GPR_SIZE);
arg_stack += MEP_GPR_SIZE;
if (gdbarch_tdep (arches->gdbarch)->me_module == me_module)
return arches->gdbarch;
- tdep = (struct gdbarch_tdep *) xmalloc (sizeof (struct gdbarch_tdep));
+ tdep = XNEW (struct gdbarch_tdep);
gdbarch = gdbarch_alloc (&info, tdep);
/* Get a CGEN CPU descriptor for this architecture. */
/* Register set. */
set_gdbarch_read_pc (gdbarch, mep_read_pc);
- set_gdbarch_write_pc (gdbarch, mep_write_pc);
set_gdbarch_num_regs (gdbarch, MEP_NUM_RAW_REGS);
+ set_gdbarch_pc_regnum (gdbarch, MEP_PC_REGNUM);
set_gdbarch_sp_regnum (gdbarch, MEP_SP_REGNUM);
set_gdbarch_register_name (gdbarch, mep_register_name);
set_gdbarch_register_type (gdbarch, mep_register_type);