/* Target-dependent code for Morpho mt processor, for GDB.
- Copyright (C) 2005, 2007, 2008 Free Software Foundation, Inc.
+ Copyright (C) 2005, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
This file is part of GDB.
#include "infcall.h"
#include "gdb_assert.h"
#include "language.h"
+#include "valprint.h"
enum mt_arch_constants
{
* MT_COPRO_PSEUDOREG_DIM_2)
};
+/* The tdep structure. */
+struct gdbarch_tdep
+{
+ /* ISA-specific types. */
+ struct type *copro_type;
+};
+
+
/* Return name of register number specified by REGNUM. */
static const char *
case MT_QCHANNEL_REGNUM:
case MT_ISCRAMB_REGNUM:
case MT_QSCRAMB_REGNUM:
- return builtin_type_int32;
+ return builtin_type (arch)->builtin_int32;
case MT_BYPA_REGNUM:
case MT_BYPB_REGNUM:
case MT_BYPC_REGNUM:
case MT_OUT_REGNUM:
case MT_ZI2_REGNUM:
case MT_ZQ2_REGNUM:
- return builtin_type_int16;
+ return builtin_type (arch)->builtin_int16;
case MT_EXMAC_REGNUM:
case MT_MAC_REGNUM:
- return builtin_type_uint32;
+ return builtin_type (arch)->builtin_uint32;
case MT_CONTEXT_REGNUM:
- return builtin_type_long_long;
+ return builtin_type (arch)->builtin_long_long;
case MT_FLAG_REGNUM:
- return builtin_type_unsigned_char;
+ return builtin_type (arch)->builtin_unsigned_char;
default:
if (regnum >= MT_CPR0_REGNUM && regnum <= MT_CPR15_REGNUM)
- return builtin_type_int16;
+ return builtin_type (arch)->builtin_int16;
else if (regnum == MT_CPR0_REGNUM + MT_COPRO_PSEUDOREG_MAC_REGNUM)
{
if (gdbarch_bfd_arch_info (arch)->mach == bfd_mach_mrisc2
|| gdbarch_bfd_arch_info (arch)->mach == bfd_mach_ms2)
- return builtin_type_uint64;
+ return builtin_type (arch)->builtin_uint64;
else
- return builtin_type_uint32;
+ return builtin_type (arch)->builtin_uint32;
}
else
- return builtin_type_uint32;
+ return builtin_type (arch)->builtin_uint32;
}
}
static struct type *
mt_register_type (struct gdbarch *arch, int regnum)
{
- static struct type *void_func_ptr = NULL;
- static struct type *void_ptr = NULL;
- static struct type *copro_type;
+ struct gdbarch_tdep *tdep = gdbarch_tdep (arch);
if (regnum >= 0 && regnum < MT_NUM_REGS + MT_NUM_PSEUDO_REGS)
{
- if (void_func_ptr == NULL)
- {
- struct type *temp;
-
- void_ptr = lookup_pointer_type (builtin_type_void);
- void_func_ptr =
- lookup_pointer_type (lookup_function_type (builtin_type_void));
- temp = create_range_type (NULL, builtin_type_unsigned_int, 0, 1);
- copro_type = create_array_type (NULL, builtin_type_int16, temp);
- }
switch (regnum)
{
case MT_PC_REGNUM:
case MT_RA_REGNUM:
case MT_IRA_REGNUM:
- return void_func_ptr;
+ return builtin_type (arch)->builtin_func_ptr;
case MT_SP_REGNUM:
case MT_FP_REGNUM:
- return void_ptr;
+ return builtin_type (arch)->builtin_data_ptr;
case MT_COPRO_REGNUM:
case MT_COPRO_PSEUDOREG_REGNUM:
- return copro_type;
+ if (tdep->copro_type == NULL)
+ {
+ struct type *elt = builtin_type (arch)->builtin_int16;
+ tdep->copro_type = lookup_array_range_type (elt, 0, 1);
+ }
+ return tdep->copro_type;
case MT_MAC_PSEUDOREG_REGNUM:
return mt_copro_register_type (arch,
MT_CPR0_REGNUM
+ MT_COPRO_PSEUDOREG_MAC_REGNUM);
default:
if (regnum >= MT_R0_REGNUM && regnum <= MT_R15_REGNUM)
- return builtin_type_int32;
+ return builtin_type (arch)->builtin_int32;
else if (regnum < MT_COPRO_PSEUDOREG_ARRAY)
return mt_copro_register_type (arch, regnum);
else
struct type *type, struct regcache *regcache,
gdb_byte *readbuf, const gdb_byte *writebuf)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+
if (TYPE_LENGTH (type) > 4)
{
/* Return values > 4 bytes are returned in memory,
/* Return values of <= 4 bytes are returned in R11. */
regcache_cooked_read_unsigned (regcache, MT_R11_REGNUM, &temp);
- store_unsigned_integer (readbuf, TYPE_LENGTH (type), temp);
+ store_unsigned_integer (readbuf, TYPE_LENGTH (type),
+ byte_order, temp);
}
if (writebuf)
static CORE_ADDR
mt_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
CORE_ADDR func_addr = 0, func_end = 0;
char *func_name;
unsigned long instr;
struct symbol *sym;
/* Found a function. */
- sym = lookup_symbol (func_name, NULL, VAR_DOMAIN, NULL, NULL);
+ sym = lookup_symbol (func_name, NULL, VAR_DOMAIN, NULL);
if (sym && SYMBOL_LANGUAGE (sym) != language_asm)
{
/* Don't use this trick for assembly source files. */
/* No function symbol, or no line symbol. Use prologue scanning method. */
for (;; pc += 4)
{
- instr = read_memory_unsigned_integer (pc, 4);
+ instr = read_memory_unsigned_integer (pc, 4, byte_order);
if (instr == 0x12000000) /* nop */
continue;
if (instr == 0x12ddc000) /* copy sp into fp */
mt_select_coprocessor (struct gdbarch *gdbarch,
struct regcache *regcache, int regno)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
unsigned index, base;
gdb_byte copro[4];
/* Get the copro pseudo regnum. */
regcache_raw_read (regcache, MT_COPRO_REGNUM, copro);
- base = (extract_signed_integer (&copro[0], 2) * MT_COPRO_PSEUDOREG_DIM_2
- + extract_signed_integer (&copro[2], 2));
+ base = ((extract_signed_integer (&copro[0], 2, byte_order)
+ * MT_COPRO_PSEUDOREG_DIM_2)
+ + extract_signed_integer (&copro[2], 2, byte_order));
regno -= MT_COPRO_PSEUDOREG_ARRAY;
index = regno % MT_COPRO_PSEUDOREG_REGS;
coprocessor register cache. */
unsigned ix;
- store_signed_integer (&copro[0], 2, regno / MT_COPRO_PSEUDOREG_DIM_2);
- store_signed_integer (&copro[2], 2, regno % MT_COPRO_PSEUDOREG_DIM_2);
+ store_signed_integer (&copro[0], 2, byte_order,
+ regno / MT_COPRO_PSEUDOREG_DIM_2);
+ store_signed_integer (&copro[2], 2, byte_order,
+ regno % MT_COPRO_PSEUDOREG_DIM_2);
regcache_raw_write (regcache, MT_COPRO_REGNUM, copro);
/* We must flush the cache, as it is now invalid. */
mt_pseudo_register_read (struct gdbarch *gdbarch,
struct regcache *regcache, int regno, gdb_byte *buf)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+
switch (regno)
{
case MT_COPRO_REGNUM:
regcache_cooked_read_unsigned (regcache, MT_EXMAC_REGNUM, &ext_mac);
newmac =
(oldmac & 0xffffffff) | ((long long) (ext_mac & 0xff) << 32);
- store_signed_integer (buf, 8, newmac);
+ store_signed_integer (buf, 8, byte_order, newmac);
}
else
regcache_raw_read (regcache, MT_MAC_REGNUM, buf);
struct regcache *regcache,
int regno, const gdb_byte *buf)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int i;
switch (regno)
unsigned int oldmac, ext_mac;
ULONGEST newmac;
- newmac = extract_unsigned_integer (buf, 8);
+ newmac = extract_unsigned_integer (buf, 8, byte_order);
oldmac = newmac & 0xffffffff;
ext_mac = (newmac >> 32) & 0xff;
regcache_cooked_write_unsigned (regcache, MT_MAC_REGNUM, oldmac);
struct ui_file *file,
struct frame_info *frame, int regnum, int all)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+
if (regnum == -1)
{
int lim;
for (i = 0; i < regsize; i++)
fprintf_filtered (file, "%02x", (unsigned int)
- extract_unsigned_integer (buff + i, 1));
+ extract_unsigned_integer (buff + i, 1, byte_order));
fputs_filtered ("\t", file);
print_longest (file, 'd', 0,
- extract_unsigned_integer (buff, regsize));
+ extract_unsigned_integer (buff, regsize, byte_order));
fputs_filtered ("\n", file);
}
else if (regnum == MT_COPRO_REGNUM
{
/* Special output handling for the 'coprocessor' register. */
gdb_byte *buf;
+ struct value_print_options opts;
buf = alloca (register_size (gdbarch, MT_COPRO_REGNUM));
frame_register_read (frame, MT_COPRO_REGNUM, buf);
print_spaces_filtered (15 - strlen (gdbarch_register_name
(gdbarch, regnum)),
file);
+ get_raw_print_options (&opts);
+ opts.deref_ref = 1;
val_print (register_type (gdbarch, regnum), buf,
- 0, 0, file, 0, 1, 0, Val_no_prettyprint,
+ 0, 0, file, 0, &opts,
current_language);
fputs_filtered ("\n", file);
}
/* Get the two "real" mac registers. */
frame_register_read (frame, MT_MAC_REGNUM, buf);
oldmac = extract_unsigned_integer
- (buf, register_size (gdbarch, MT_MAC_REGNUM));
+ (buf, register_size (gdbarch, MT_MAC_REGNUM), byte_order);
if (gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_mrisc2
|| gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_ms2)
{
frame_register_read (frame, MT_EXMAC_REGNUM, buf);
ext_mac = extract_unsigned_integer
- (buf, register_size (gdbarch, MT_EXMAC_REGNUM));
+ (buf, register_size (gdbarch, MT_EXMAC_REGNUM), byte_order);
}
else
ext_mac = 0;
int struct_return, CORE_ADDR struct_addr)
{
#define wordsize 4
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
gdb_byte buf[MT_MAX_STRUCT_SIZE];
int argreg = MT_1ST_ARGREG;
int split_param_len = 0;
regcache_cooked_write_unsigned (regcache, argreg++,
extract_unsigned_integer
(value_contents (args[i]),
- wordsize));
+ wordsize, byte_order));
break;
case 8:
case 12:
/* This word of the argument is passed in a register. */
regcache_cooked_write_unsigned (regcache, argreg++,
extract_unsigned_integer
- (val, wordsize));
+ (val, wordsize, byte_order));
typelen -= wordsize;
val += wordsize;
}
the frame. */
static struct mt_unwind_cache *
-mt_frame_unwind_cache (struct frame_info *next_frame,
+mt_frame_unwind_cache (struct frame_info *this_frame,
void **this_prologue_cache)
{
struct gdbarch *gdbarch;
if ((*this_prologue_cache))
return (*this_prologue_cache);
- gdbarch = get_frame_arch (next_frame);
+ gdbarch = get_frame_arch (this_frame);
info = FRAME_OBSTACK_ZALLOC (struct mt_unwind_cache);
(*this_prologue_cache) = info;
info->framesize = 0;
info->frame_base = 0;
info->frameless_p = 1;
- info->saved_regs = trad_frame_alloc_saved_regs (next_frame);
+ info->saved_regs = trad_frame_alloc_saved_regs (this_frame);
/* Grab the frame-relative values of SP and FP, needed below.
The frame_saved_register function will find them on the
stack or in the registers as appropriate. */
- sp = frame_unwind_register_unsigned (next_frame, MT_SP_REGNUM);
- fp = frame_unwind_register_unsigned (next_frame, MT_FP_REGNUM);
+ sp = get_frame_register_unsigned (this_frame, MT_SP_REGNUM);
+ fp = get_frame_register_unsigned (this_frame, MT_FP_REGNUM);
- start_addr = frame_func_unwind (next_frame, NORMAL_FRAME);
+ start_addr = get_frame_func (this_frame);
/* Return early if GDB couldn't find the function. */
if (start_addr == 0)
return info;
- end_addr = frame_pc_unwind (next_frame);
- prologue_end_addr = skip_prologue_using_sal (start_addr);
+ end_addr = get_frame_pc (this_frame);
+ prologue_end_addr = skip_prologue_using_sal (gdbarch, start_addr);
if (end_addr == 0)
for (next_addr = start_addr; next_addr < end_addr; next_addr += 4)
{
- instr = get_frame_memory_unsigned (next_frame, next_addr, 4);
+ instr = get_frame_memory_unsigned (this_frame, next_addr, 4);
if (delayed_store) /* previous instr was a push */
{
upper_half = delayed_store >> 16;
return sp;
}
-/* Assuming NEXT_FRAME->prev is a dummy, return the frame ID of that
- dummy frame. The frame ID's base needs to match the TOS value
- saved by save_dummy_frame_tos(), and the PC match the dummy frame's
- breakpoint. */
+/* Assuming THIS_FRAME is a dummy, return the frame ID of that dummy
+ frame. The frame ID's base needs to match the TOS value saved by
+ save_dummy_frame_tos(), and the PC match the dummy frame's breakpoint. */
static struct frame_id
-mt_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *next_frame)
+mt_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
{
- return frame_id_build (mt_unwind_sp (gdbarch, next_frame),
- frame_pc_unwind (next_frame));
+ CORE_ADDR sp = get_frame_register_unsigned (this_frame, MT_SP_REGNUM);
+ return frame_id_build (sp, get_frame_pc (this_frame));
}
/* Given a GDB frame, determine the address of the calling function's
frame. This will be used to create a new GDB frame struct. */
static void
-mt_frame_this_id (struct frame_info *next_frame,
+mt_frame_this_id (struct frame_info *this_frame,
void **this_prologue_cache, struct frame_id *this_id)
{
struct mt_unwind_cache *info =
- mt_frame_unwind_cache (next_frame, this_prologue_cache);
+ mt_frame_unwind_cache (this_frame, this_prologue_cache);
if (!(info == NULL || info->prev_sp == 0))
- (*this_id) = frame_id_build (info->prev_sp,
- frame_func_unwind (next_frame, NORMAL_FRAME));
+ (*this_id) = frame_id_build (info->prev_sp, get_frame_func (this_frame));
return;
}
-static void
-mt_frame_prev_register (struct frame_info *next_frame,
- void **this_prologue_cache,
- int regnum, int *optimizedp,
- enum lval_type *lvalp, CORE_ADDR *addrp,
- int *realnump, gdb_byte *bufferp)
+static struct value *
+mt_frame_prev_register (struct frame_info *this_frame,
+ void **this_prologue_cache, int regnum)
{
struct mt_unwind_cache *info =
- mt_frame_unwind_cache (next_frame, this_prologue_cache);
+ mt_frame_unwind_cache (this_frame, this_prologue_cache);
- trad_frame_get_prev_register (next_frame, info->saved_regs, regnum,
- optimizedp, lvalp, addrp, realnump, bufferp);
+ return trad_frame_get_prev_register (this_frame, info->saved_regs, regnum);
}
static CORE_ADDR
-mt_frame_base_address (struct frame_info *next_frame,
+mt_frame_base_address (struct frame_info *this_frame,
void **this_prologue_cache)
{
struct mt_unwind_cache *info =
- mt_frame_unwind_cache (next_frame, this_prologue_cache);
+ mt_frame_unwind_cache (this_frame, this_prologue_cache);
return info->frame_base;
}
static const struct frame_unwind mt_frame_unwind = {
NORMAL_FRAME,
mt_frame_this_id,
- mt_frame_prev_register
+ mt_frame_prev_register,
+ NULL,
+ default_frame_sniffer
};
-/* The sniffer is a registered function that identifies our family of
- frame unwind functions (this_id and prev_register). */
-
-static const struct frame_unwind *
-mt_frame_sniffer (struct frame_info *next_frame)
-{
- return &mt_frame_unwind;
-}
-
/* Another shared interface: the 'frame_base' object specifies how to
unwind a frame and secure the base addresses for frame objects
(locals, args). */
mt_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
{
struct gdbarch *gdbarch;
+ struct gdbarch_tdep *tdep;
/* Find a candidate among the list of pre-declared architectures. */
arches = gdbarch_list_lookup_by_info (arches, &info);
/* None found, create a new architecture from the information
provided. */
- gdbarch = gdbarch_alloc (&info, NULL);
+ tdep = XCALLOC (1, struct gdbarch_tdep);
+ gdbarch = gdbarch_alloc (&info, tdep);
set_gdbarch_float_format (gdbarch, floatformats_ieee_single);
set_gdbarch_double_format (gdbarch, floatformats_ieee_double);
/* Register the DWARF 2 sniffer first, and then the traditional prologue
based sniffer. */
- frame_unwind_append_sniffer (gdbarch, dwarf2_frame_sniffer);
- frame_unwind_append_sniffer (gdbarch, mt_frame_sniffer);
+ dwarf2_append_unwinders (gdbarch);
+ frame_unwind_append_unwinder (gdbarch, &mt_frame_unwind);
frame_base_set_default (gdbarch, &mt_frame_base);
/* Register the 'unwind_pc' method. */
/* Methods for saving / extracting a dummy frame's ID.
The ID's stack address must match the SP value returned by
PUSH_DUMMY_CALL, and saved by generic_save_dummy_frame_tos. */
- set_gdbarch_unwind_dummy_id (gdbarch, mt_unwind_dummy_id);
+ set_gdbarch_dummy_id (gdbarch, mt_dummy_id);
return gdbarch;
}
+/* Provide a prototype to silence -Wmissing-prototypes. */
+extern initialize_file_ftype _initialize_mt_tdep;
+
void
_initialize_mt_tdep (void)
{
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