/* SPU target-dependent code for GDB, the GNU debugger.
- Copyright (C) 2006, 2007 Free Software Foundation, Inc.
+ Copyright (C) 2006, 2007, 2008 Free Software Foundation, Inc.
Contributed by Ulrich Weigand <uweigand@de.ibm.com>.
Based on a port by Sid Manning <sid@us.ibm.com>.
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., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "arch-utils.h"
#include "spu-tdep.h"
+
+/* The tdep structure. */
+struct gdbarch_tdep
+{
+ /* SPU-specific vector type. */
+ struct type *spu_builtin_type_vec128;
+};
+
+
/* SPU-specific vector type. */
-struct type *spu_builtin_type_vec128;
+static struct type *
+spu_builtin_type_vec128 (struct gdbarch *gdbarch)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
+ if (!tdep->spu_builtin_type_vec128)
+ {
+ struct type *t;
+
+ t = init_composite_type ("__spu_builtin_type_vec128", TYPE_CODE_UNION);
+ append_composite_type_field (t, "uint128", builtin_type_int128);
+ append_composite_type_field (t, "v2_int64",
+ init_vector_type (builtin_type_int64, 2));
+ append_composite_type_field (t, "v4_int32",
+ init_vector_type (builtin_type_int32, 4));
+ append_composite_type_field (t, "v8_int16",
+ init_vector_type (builtin_type_int16, 8));
+ append_composite_type_field (t, "v16_int8",
+ init_vector_type (builtin_type_int8, 16));
+ append_composite_type_field (t, "v2_double",
+ init_vector_type (builtin_type_double, 2));
+ append_composite_type_field (t, "v4_float",
+ init_vector_type (builtin_type_float, 4));
+
+ TYPE_FLAGS (t) |= TYPE_FLAG_VECTOR;
+ TYPE_NAME (t) = "spu_builtin_type_vec128";
+
+ tdep->spu_builtin_type_vec128 = t;
+ }
+
+ return tdep->spu_builtin_type_vec128;
+}
+
/* The list of available "info spu " commands. */
static struct cmd_list_element *infospucmdlist = NULL;
/* Registers. */
static const char *
-spu_register_name (int reg_nr)
+spu_register_name (struct gdbarch *gdbarch, int reg_nr)
{
static char *register_names[] =
{
spu_register_type (struct gdbarch *gdbarch, int reg_nr)
{
if (reg_nr < SPU_NUM_GPRS)
- return spu_builtin_type_vec128;
+ return spu_builtin_type_vec128 (gdbarch);
switch (reg_nr)
{
return default_register_reggroup_p (gdbarch, regnum, group);
}
+/* Address conversion. */
+
+static CORE_ADDR
+spu_pointer_to_address (struct type *type, const gdb_byte *buf)
+{
+ ULONGEST addr = extract_unsigned_integer (buf, TYPE_LENGTH (type));
+ ULONGEST lslr = SPU_LS_SIZE - 1; /* Hard-wired LS size. */
+
+ if (target_has_registers && target_has_stack && target_has_memory)
+ lslr = get_frame_register_unsigned (get_selected_frame (NULL),
+ SPU_LSLR_REGNUM);
+
+ return addr & lslr;
+}
+
+static CORE_ADDR
+spu_integer_to_address (struct gdbarch *gdbarch,
+ struct type *type, const gdb_byte *buf)
+{
+ ULONGEST addr = unpack_long (type, buf);
+ ULONGEST lslr = SPU_LS_SIZE - 1; /* Hard-wired LS size. */
+
+ if (target_has_registers && target_has_stack && target_has_memory)
+ lslr = get_frame_register_unsigned (get_selected_frame (NULL),
+ SPU_LSLR_REGNUM);
+
+ return addr & lslr;
+}
+
/* Decoding SPU instructions. */
/* Return the first instruction after the prologue starting at PC. */
static CORE_ADDR
-spu_skip_prologue (CORE_ADDR pc)
+spu_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
{
struct spu_prologue_data data;
return spu_analyze_prologue (pc, (CORE_ADDR)-1, &data);
/* Return the frame pointer in use at address PC. */
static void
-spu_virtual_frame_pointer (CORE_ADDR pc, int *reg, LONGEST *offset)
+spu_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc,
+ int *reg, LONGEST *offset)
{
struct spu_prologue_data data;
spu_analyze_prologue (pc, (CORE_ADDR)-1, &data);
};
static struct spu_unwind_cache *
-spu_frame_unwind_cache (struct frame_info *next_frame,
+spu_frame_unwind_cache (struct frame_info *this_frame,
void **this_prologue_cache)
{
struct spu_unwind_cache *info;
info = FRAME_OBSTACK_ZALLOC (struct spu_unwind_cache);
*this_prologue_cache = info;
- info->saved_regs = trad_frame_alloc_saved_regs (next_frame);
+ info->saved_regs = trad_frame_alloc_saved_regs (this_frame);
info->frame_base = 0;
info->local_base = 0;
/* Find the start of the current function, and analyze its prologue. */
- info->func = frame_func_unwind (next_frame, NORMAL_FRAME);
+ info->func = get_frame_func (this_frame);
if (info->func == 0)
{
/* Fall back to using the current PC as frame ID. */
- info->func = frame_pc_unwind (next_frame);
+ info->func = get_frame_pc (this_frame);
data.size = -1;
}
else
- spu_analyze_prologue (info->func, frame_pc_unwind (next_frame), &data);
+ spu_analyze_prologue (info->func, get_frame_pc (this_frame), &data);
/* If successful, use prologue analysis data. */
int i;
/* Determine CFA via unwound CFA_REG plus CFA_OFFSET. */
- frame_unwind_register (next_frame, data.cfa_reg, buf);
+ get_frame_register (this_frame, data.cfa_reg, buf);
cfa = extract_unsigned_integer (buf, 4) + data.cfa_offset;
/* Call-saved register slots. */
CORE_ADDR reg, backchain;
/* Get the backchain. */
- reg = frame_unwind_register_unsigned (next_frame, SPU_SP_REGNUM);
+ reg = get_frame_register_unsigned (this_frame, SPU_SP_REGNUM);
backchain = read_memory_unsigned_integer (reg, 4);
/* A zero backchain terminates the frame chain. Also, sanity
if (trad_frame_addr_p (info->saved_regs, SPU_LR_REGNUM))
target_read_memory (info->saved_regs[SPU_LR_REGNUM].addr, buf, 16);
else
- frame_unwind_register (next_frame, SPU_LR_REGNUM, buf);
+ get_frame_register (this_frame, SPU_LR_REGNUM, buf);
/* Normally, the return address is contained in the slot 0 of the
link register, and slots 1-3 are zero. For an overlay return,
}
static void
-spu_frame_this_id (struct frame_info *next_frame,
+spu_frame_this_id (struct frame_info *this_frame,
void **this_prologue_cache, struct frame_id *this_id)
{
struct spu_unwind_cache *info =
- spu_frame_unwind_cache (next_frame, this_prologue_cache);
+ spu_frame_unwind_cache (this_frame, this_prologue_cache);
if (info->frame_base == 0)
return;
*this_id = frame_id_build (info->frame_base, info->func);
}
-static void
-spu_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 *
+spu_frame_prev_register (struct frame_info *this_frame,
+ void **this_prologue_cache, int regnum)
{
struct spu_unwind_cache *info
- = spu_frame_unwind_cache (next_frame, this_prologue_cache);
+ = spu_frame_unwind_cache (this_frame, this_prologue_cache);
/* Special-case the stack pointer. */
if (regnum == SPU_RAW_SP_REGNUM)
regnum = SPU_SP_REGNUM;
- 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 const struct frame_unwind spu_frame_unwind = {
NORMAL_FRAME,
spu_frame_this_id,
- spu_frame_prev_register
+ spu_frame_prev_register,
+ NULL,
+ default_frame_sniffer
};
-const struct frame_unwind *
-spu_frame_sniffer (struct frame_info *next_frame)
-{
- return &spu_frame_unwind;
-}
-
static CORE_ADDR
-spu_frame_base_address (struct frame_info *next_frame, void **this_cache)
+spu_frame_base_address (struct frame_info *this_frame, void **this_cache)
{
struct spu_unwind_cache *info
- = spu_frame_unwind_cache (next_frame, this_cache);
+ = spu_frame_unwind_cache (this_frame, this_cache);
return info->local_base;
}
}
static CORE_ADDR
-spu_read_pc (ptid_t ptid)
+spu_read_pc (struct regcache *regcache)
{
- CORE_ADDR pc = read_register_pid (SPU_PC_REGNUM, ptid);
+ ULONGEST pc;
+ regcache_cooked_read_unsigned (regcache, SPU_PC_REGNUM, &pc);
/* Mask off interrupt enable bit. */
return pc & -4;
}
static void
-spu_write_pc (CORE_ADDR pc, ptid_t ptid)
+spu_write_pc (struct regcache *regcache, CORE_ADDR pc)
{
/* Keep interrupt enabled state unchanged. */
- CORE_ADDR old_pc = read_register_pid (SPU_PC_REGNUM, ptid);
- write_register_pid (SPU_PC_REGNUM, (pc & -4) | (old_pc & 3), ptid);
+ ULONGEST old_pc;
+ regcache_cooked_read_unsigned (regcache, SPU_PC_REGNUM, &old_pc);
+ regcache_cooked_write_unsigned (regcache, SPU_PC_REGNUM,
+ (pc & -4) | (old_pc & 3));
}
}
static struct frame_id
-spu_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *next_frame)
+spu_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
{
- return frame_id_build (spu_unwind_sp (gdbarch, next_frame),
- spu_unwind_pc (gdbarch, next_frame));
+ CORE_ADDR pc = get_frame_register_unsigned (this_frame, SPU_PC_REGNUM);
+ CORE_ADDR sp = get_frame_register_unsigned (this_frame, SPU_SP_REGNUM);
+ return frame_id_build (sp, pc & -4);
}
/* Function return value access. */
static enum return_value_convention
-spu_return_value (struct gdbarch *gdbarch, struct type *type,
- struct regcache *regcache, gdb_byte *out, const gdb_byte *in)
+spu_return_value (struct gdbarch *gdbarch, struct type *func_type,
+ struct type *type, struct regcache *regcache,
+ gdb_byte *out, const gdb_byte *in)
{
enum return_value_convention rvc;
/* Breakpoints. */
static const gdb_byte *
-spu_breakpoint_from_pc (CORE_ADDR * pcptr, int *lenptr)
+spu_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR * pcptr, int *lenptr)
{
static const gdb_byte breakpoint[] = { 0x00, 0x00, 0x3f, 0xff };
/* Software single-stepping support. */
int
-spu_software_single_step (struct regcache *regcache)
+spu_software_single_step (struct frame_info *frame)
{
CORE_ADDR pc, next_pc;
unsigned int insn;
int offset, reg;
gdb_byte buf[4];
- regcache_cooked_read (regcache, SPU_PC_REGNUM, buf);
- /* Mask off interrupt enable bit. */
- pc = extract_unsigned_integer (buf, 4) & -4;
+ pc = get_frame_pc (frame);
if (target_read_memory (pc, buf, 4))
return 1;
target += pc;
else if (reg != -1)
{
- regcache_cooked_read_part (regcache, reg, 0, 4, buf);
+ get_frame_register_bytes (frame, reg, 0, 4, buf);
target += extract_unsigned_integer (buf, 4) & -4;
}
xsnprintf (annex, sizeof annex, "%d/event_status", id);
len = target_read (¤t_target, TARGET_OBJECT_SPU, annex,
- buf, 0, sizeof buf);
+ buf, 0, (sizeof (buf) - 1));
if (len <= 0)
error (_("Could not read event_status."));
+ buf[len] = '\0';
event_status = strtoulst (buf, NULL, 16);
xsnprintf (annex, sizeof annex, "%d/event_mask", id);
len = target_read (¤t_target, TARGET_OBJECT_SPU, annex,
- buf, 0, sizeof buf);
+ buf, 0, (sizeof (buf) - 1));
if (len <= 0)
error (_("Could not read event_mask."));
+ buf[len] = '\0';
event_mask = strtoulst (buf, NULL, 16);
chain = make_cleanup_ui_out_tuple_begin_end (uiout, "SPUInfoEvent");
xsnprintf (annex, sizeof annex, "%d/signal1_type", id);
len = target_read (¤t_target, TARGET_OBJECT_SPU, annex,
- buf, 0, sizeof buf);
+ buf, 0, (sizeof (buf) - 1));
if (len <= 0)
error (_("Could not read signal1_type."));
+ buf[len] = '\0';
signal1_type = strtoulst (buf, NULL, 16);
xsnprintf (annex, sizeof annex, "%d/signal2", id);
xsnprintf (annex, sizeof annex, "%d/signal2_type", id);
len = target_read (¤t_target, TARGET_OBJECT_SPU, annex,
- buf, 0, sizeof buf);
+ buf, 0, (sizeof (buf) - 1));
if (len <= 0)
error (_("Could not read signal2_type."));
+ buf[len] = '\0';
signal2_type = strtoulst (buf, NULL, 16);
chain = make_cleanup_ui_out_tuple_begin_end (uiout, "SPUInfoSignal");
printf_filtered (_("Signal 1 not pending "));
if (signal1_type)
- printf_filtered (_("(Type Overwrite)\n"));
- else
printf_filtered (_("(Type Or)\n"));
+ else
+ printf_filtered (_("(Type Overwrite)\n"));
if (signal2_pending)
printf_filtered (_("Signal 2 control word 0x%s "), phex (signal2, 4));
printf_filtered (_("Signal 2 not pending "));
if (signal2_type)
- printf_filtered (_("(Type Overwrite)\n"));
- else
printf_filtered (_("(Type Or)\n"));
+ else
+ printf_filtered (_("(Type Overwrite)\n"));
}
do_cleanups (chain);
spu_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);
return NULL;
/* Yes, create a new architecture. */
- gdbarch = gdbarch_alloc (&info, NULL);
+ tdep = XCALLOC (1, struct gdbarch_tdep);
+ gdbarch = gdbarch_alloc (&info, tdep);
/* Disassembler. */
set_gdbarch_print_insn (gdbarch, print_insn_spu);
set_gdbarch_double_format (gdbarch, floatformats_ieee_double);
set_gdbarch_long_double_format (gdbarch, floatformats_ieee_double);
+ /* Address conversion. */
+ set_gdbarch_pointer_to_address (gdbarch, spu_pointer_to_address);
+ set_gdbarch_integer_to_address (gdbarch, spu_integer_to_address);
+
/* Inferior function calls. */
set_gdbarch_call_dummy_location (gdbarch, ON_STACK);
set_gdbarch_frame_align (gdbarch, spu_frame_align);
set_gdbarch_push_dummy_call (gdbarch, spu_push_dummy_call);
- set_gdbarch_unwind_dummy_id (gdbarch, spu_unwind_dummy_id);
+ set_gdbarch_dummy_id (gdbarch, spu_dummy_id);
set_gdbarch_return_value (gdbarch, spu_return_value);
/* Frame handling. */
set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
- frame_unwind_append_sniffer (gdbarch, spu_frame_sniffer);
+ frame_unwind_append_unwinder (gdbarch, &spu_frame_unwind);
frame_base_set_default (gdbarch, &spu_frame_base);
set_gdbarch_unwind_pc (gdbarch, spu_unwind_pc);
set_gdbarch_unwind_sp (gdbarch, spu_unwind_sp);
return gdbarch;
}
-/* Implement a SPU-specific vector type as replacement
- for __gdb_builtin_type_vec128. */
-static void
-spu_init_vector_type (void)
-{
- struct type *type;
-
- type = init_composite_type ("__spu_builtin_type_vec128", TYPE_CODE_UNION);
- append_composite_type_field (type, "uint128", builtin_type_int128);
- append_composite_type_field (type, "v2_int64", builtin_type_v2_int64);
- append_composite_type_field (type, "v4_int32", builtin_type_v4_int32);
- append_composite_type_field (type, "v8_int16", builtin_type_v8_int16);
- append_composite_type_field (type, "v16_int8", builtin_type_v16_int8);
- append_composite_type_field (type, "v2_double", builtin_type_v2_double);
- append_composite_type_field (type, "v4_float", builtin_type_v4_float);
-
- TYPE_FLAGS (type) |= TYPE_FLAG_VECTOR;
- TYPE_NAME (type) = "spu_builtin_type_vec128";
- spu_builtin_type_vec128 = type;
-}
-
void
_initialize_spu_tdep (void)
{
register_gdbarch_init (bfd_arch_spu, spu_gdbarch_init);
- spu_init_vector_type ();
-
/* Add ourselves to objfile event chain. */
observer_attach_new_objfile (spu_overlay_new_objfile);
spu_overlay_data = register_objfile_data ();
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