/* SPU target-dependent code for GDB, the GNU debugger.
- Copyright (C) 2006, 2007 Free Software Foundation, Inc.
+ Copyright (C) 2006, 2007, 2008, 2009 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 "regcache.h"
#include "reggroups.h"
#include "floatformat.h"
+#include "observer.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)
+ {
+ const struct builtin_type *bt = builtin_type (gdbarch);
+ struct type *t;
+
+ t = arch_composite_type (gdbarch,
+ "__spu_builtin_type_vec128", TYPE_CODE_UNION);
+ append_composite_type_field (t, "uint128", bt->builtin_int128);
+ append_composite_type_field (t, "v2_int64",
+ init_vector_type (bt->builtin_int64, 2));
+ append_composite_type_field (t, "v4_int32",
+ init_vector_type (bt->builtin_int32, 4));
+ append_composite_type_field (t, "v8_int16",
+ init_vector_type (bt->builtin_int16, 8));
+ append_composite_type_field (t, "v16_int8",
+ init_vector_type (bt->builtin_int8, 16));
+ append_composite_type_field (t, "v2_double",
+ init_vector_type (bt->builtin_double, 2));
+ append_composite_type_field (t, "v4_float",
+ init_vector_type (bt->builtin_float, 4));
+
+ TYPE_VECTOR (t) = 1;
+ 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[] =
{
"r104", "r105", "r106", "r107", "r108", "r109", "r110", "r111",
"r112", "r113", "r114", "r115", "r116", "r117", "r118", "r119",
"r120", "r121", "r122", "r123", "r124", "r125", "r126", "r127",
- "id", "pc", "sp"
+ "id", "pc", "sp", "fpscr", "srr0", "lslr", "decr", "decr_status"
};
if (reg_nr < 0)
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)
{
case SPU_ID_REGNUM:
- return builtin_type_uint32;
+ return builtin_type (gdbarch)->builtin_uint32;
case SPU_PC_REGNUM:
- return builtin_type_void_func_ptr;
+ return builtin_type (gdbarch)->builtin_func_ptr;
case SPU_SP_REGNUM:
- return builtin_type_void_data_ptr;
+ return builtin_type (gdbarch)->builtin_data_ptr;
+
+ case SPU_FPSCR_REGNUM:
+ return builtin_type (gdbarch)->builtin_uint128;
+
+ case SPU_SRR0_REGNUM:
+ return builtin_type (gdbarch)->builtin_uint32;
+
+ case SPU_LSLR_REGNUM:
+ return builtin_type (gdbarch)->builtin_uint32;
+
+ case SPU_DECR_REGNUM:
+ return builtin_type (gdbarch)->builtin_uint32;
+
+ case SPU_DECR_STATUS_REGNUM:
+ return builtin_type (gdbarch)->builtin_uint32;
default:
internal_error (__FILE__, __LINE__, "invalid regnum");
/* Pseudo registers for preferred slots - stack pointer. */
+static void
+spu_pseudo_register_read_spu (struct regcache *regcache, const char *regname,
+ gdb_byte *buf)
+{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ gdb_byte reg[32];
+ char annex[32];
+ ULONGEST id;
+
+ regcache_raw_read_unsigned (regcache, SPU_ID_REGNUM, &id);
+ xsnprintf (annex, sizeof annex, "%d/%s", (int) id, regname);
+ memset (reg, 0, sizeof reg);
+ target_read (¤t_target, TARGET_OBJECT_SPU, annex,
+ reg, 0, sizeof reg);
+
+ store_unsigned_integer (buf, 4, byte_order, strtoulst (reg, NULL, 16));
+}
+
static void
spu_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
int regnum, gdb_byte *buf)
{
gdb_byte reg[16];
+ char annex[32];
+ ULONGEST id;
switch (regnum)
{
memcpy (buf, reg, 4);
break;
+ case SPU_FPSCR_REGNUM:
+ regcache_raw_read_unsigned (regcache, SPU_ID_REGNUM, &id);
+ xsnprintf (annex, sizeof annex, "%d/fpcr", (int) id);
+ target_read (¤t_target, TARGET_OBJECT_SPU, annex, buf, 0, 16);
+ break;
+
+ case SPU_SRR0_REGNUM:
+ spu_pseudo_register_read_spu (regcache, "srr0", buf);
+ break;
+
+ case SPU_LSLR_REGNUM:
+ spu_pseudo_register_read_spu (regcache, "lslr", buf);
+ break;
+
+ case SPU_DECR_REGNUM:
+ spu_pseudo_register_read_spu (regcache, "decr", buf);
+ break;
+
+ case SPU_DECR_STATUS_REGNUM:
+ spu_pseudo_register_read_spu (regcache, "decr_status", buf);
+ break;
+
default:
internal_error (__FILE__, __LINE__, _("invalid regnum"));
}
}
+static void
+spu_pseudo_register_write_spu (struct regcache *regcache, const char *regname,
+ const gdb_byte *buf)
+{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ gdb_byte reg[32];
+ char annex[32];
+ ULONGEST id;
+
+ regcache_raw_read_unsigned (regcache, SPU_ID_REGNUM, &id);
+ xsnprintf (annex, sizeof annex, "%d/%s", (int) id, regname);
+ xsnprintf (reg, sizeof reg, "0x%s",
+ phex_nz (extract_unsigned_integer (buf, 4, byte_order), 4));
+ target_write (¤t_target, TARGET_OBJECT_SPU, annex,
+ reg, 0, strlen (reg));
+}
+
static void
spu_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
int regnum, const gdb_byte *buf)
{
gdb_byte reg[16];
+ char annex[32];
+ ULONGEST id;
switch (regnum)
{
regcache_raw_write (regcache, SPU_RAW_SP_REGNUM, reg);
break;
+ case SPU_FPSCR_REGNUM:
+ regcache_raw_read_unsigned (regcache, SPU_ID_REGNUM, &id);
+ xsnprintf (annex, sizeof annex, "%d/fpcr", (int) id);
+ target_write (¤t_target, TARGET_OBJECT_SPU, annex, buf, 0, 16);
+ break;
+
+ case SPU_SRR0_REGNUM:
+ spu_pseudo_register_write_spu (regcache, "srr0", buf);
+ break;
+
+ case SPU_LSLR_REGNUM:
+ spu_pseudo_register_write_spu (regcache, "lslr", buf);
+ break;
+
+ case SPU_DECR_REGNUM:
+ spu_pseudo_register_write_spu (regcache, "decr", buf);
+ break;
+
+ case SPU_DECR_STATUS_REGNUM:
+ spu_pseudo_register_write_spu (regcache, "decr_status", buf);
+ break;
+
default:
internal_error (__FILE__, __LINE__, _("invalid regnum"));
}
return default_register_reggroup_p (gdbarch, regnum, group);
}
+/* Address conversion. */
+
+static CORE_ADDR
+spu_pointer_to_address (struct gdbarch *gdbarch,
+ struct type *type, const gdb_byte *buf)
+{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ ULONGEST addr
+ = extract_unsigned_integer (buf, TYPE_LENGTH (type), byte_order);
+ 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. */
};
static CORE_ADDR
-spu_analyze_prologue (CORE_ADDR start_pc, CORE_ADDR end_pc,
+spu_analyze_prologue (struct gdbarch *gdbarch,
+ CORE_ADDR start_pc, CORE_ADDR end_pc,
struct spu_prologue_data *data)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int found_sp = 0;
int found_fp = 0;
int found_lr = 0;
if (target_read_memory (pc, buf, 4))
break;
- insn = extract_unsigned_integer (buf, 4);
+ insn = extract_unsigned_integer (buf, 4, byte_order);
/* AI is the typical instruction to set up a stack frame.
It is also used to initialize the frame pointer. */
/* 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 spu_analyze_prologue (gdbarch, 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);
+ spu_analyze_prologue (gdbarch, pc, (CORE_ADDR)-1, &data);
if (data.size != -1 && data.cfa_reg != -1)
{
}
}
+/* Return true if we are in the function's epilogue, i.e. after the
+ instruction that destroyed the function's stack frame.
+
+ 1) scan forward from the point of execution:
+ a) If you find an instruction that modifies the stack pointer
+ or transfers control (except a return), execution is not in
+ an epilogue, return.
+ b) Stop scanning if you find a return instruction or reach the
+ end of the function or reach the hard limit for the size of
+ an epilogue.
+ 2) scan backward from the point of execution:
+ a) If you find an instruction that modifies the stack pointer,
+ execution *is* in an epilogue, return.
+ b) Stop scanning if you reach an instruction that transfers
+ control or the beginning of the function or reach the hard
+ limit for the size of an epilogue. */
+
+static int
+spu_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR pc)
+{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ CORE_ADDR scan_pc, func_start, func_end, epilogue_start, epilogue_end;
+ bfd_byte buf[4];
+ unsigned int insn;
+ int rt, ra, rb, rc, immed;
+
+ /* Find the search limits based on function boundaries and hard limit.
+ We assume the epilogue can be up to 64 instructions long. */
+
+ const int spu_max_epilogue_size = 64 * 4;
+
+ if (!find_pc_partial_function (pc, NULL, &func_start, &func_end))
+ return 0;
+
+ if (pc - func_start < spu_max_epilogue_size)
+ epilogue_start = func_start;
+ else
+ epilogue_start = pc - spu_max_epilogue_size;
+
+ if (func_end - pc < spu_max_epilogue_size)
+ epilogue_end = func_end;
+ else
+ epilogue_end = pc + spu_max_epilogue_size;
+
+ /* Scan forward until next 'bi $0'. */
+
+ for (scan_pc = pc; scan_pc < epilogue_end; scan_pc += 4)
+ {
+ if (target_read_memory (scan_pc, buf, 4))
+ return 0;
+ insn = extract_unsigned_integer (buf, 4, byte_order);
+
+ if (is_branch (insn, &immed, &ra))
+ {
+ if (immed == 0 && ra == SPU_LR_REGNUM)
+ break;
+
+ return 0;
+ }
+
+ if (is_ri10 (insn, op_ai, &rt, &ra, &immed)
+ || is_rr (insn, op_a, &rt, &ra, &rb)
+ || is_ri10 (insn, op_lqd, &rt, &ra, &immed))
+ {
+ if (rt == SPU_RAW_SP_REGNUM)
+ return 0;
+ }
+ }
+
+ if (scan_pc >= epilogue_end)
+ return 0;
+
+ /* Scan backward until adjustment to stack pointer (R1). */
+
+ for (scan_pc = pc - 4; scan_pc >= epilogue_start; scan_pc -= 4)
+ {
+ if (target_read_memory (scan_pc, buf, 4))
+ return 0;
+ insn = extract_unsigned_integer (buf, 4, byte_order);
+
+ if (is_branch (insn, &immed, &ra))
+ return 0;
+
+ if (is_ri10 (insn, op_ai, &rt, &ra, &immed)
+ || is_rr (insn, op_a, &rt, &ra, &rb)
+ || is_ri10 (insn, op_lqd, &rt, &ra, &immed))
+ {
+ if (rt == SPU_RAW_SP_REGNUM)
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+
/* Normal stack frames. */
struct spu_unwind_cache
};
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 gdbarch *gdbarch = get_frame_arch (this_frame);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
struct spu_unwind_cache *info;
struct spu_prologue_data data;
+ gdb_byte buf[16];
if (*this_prologue_cache)
return *this_prologue_cache;
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 (gdbarch, info->func, get_frame_pc (this_frame),
+ &data);
/* If successful, use prologue analysis data. */
if (data.size != -1 && data.cfa_reg != -1)
{
CORE_ADDR cfa;
int i;
- gdb_byte buf[16];
/* Determine CFA via unwound CFA_REG plus CFA_OFFSET. */
- frame_unwind_register (next_frame, data.cfa_reg, buf);
- cfa = extract_unsigned_integer (buf, 4) + data.cfa_offset;
+ get_frame_register (this_frame, data.cfa_reg, buf);
+ cfa = extract_unsigned_integer (buf, 4, byte_order) + data.cfa_offset;
/* Call-saved register slots. */
for (i = 0; i < SPU_NUM_GPRS; i++)
if (data.reg_offset[i] != -1)
info->saved_regs[i].addr = cfa - data.reg_offset[i];
- /* The previous PC comes from the link register. */
- if (trad_frame_addr_p (info->saved_regs, SPU_LR_REGNUM))
- info->saved_regs[SPU_PC_REGNUM] = info->saved_regs[SPU_LR_REGNUM];
- else
- info->saved_regs[SPU_PC_REGNUM].realreg = SPU_LR_REGNUM;
-
- /* The previous SP is equal to the CFA. */
- trad_frame_set_value (info->saved_regs, SPU_SP_REGNUM, cfa);
-
/* Frame bases. */
info->frame_base = cfa;
info->local_base = cfa - data.size;
/* Otherwise, fall back to reading the backchain link. */
else
{
- CORE_ADDR reg, backchain;
+ CORE_ADDR reg;
+ LONGEST backchain;
+ int status;
/* Get the backchain. */
- reg = frame_unwind_register_unsigned (next_frame, SPU_SP_REGNUM);
- backchain = read_memory_unsigned_integer (reg, 4);
+ reg = get_frame_register_unsigned (this_frame, SPU_SP_REGNUM);
+ status = safe_read_memory_integer (reg, 4, byte_order, &backchain);
/* A zero backchain terminates the frame chain. Also, sanity
check against the local store size limit. */
- if (backchain != 0 && backchain < SPU_LS_SIZE)
+ if (status && backchain > 0 && backchain < SPU_LS_SIZE)
{
/* Assume the link register is saved into its slot. */
if (backchain + 16 < SPU_LS_SIZE)
info->saved_regs[SPU_LR_REGNUM].addr = backchain + 16;
- /* This will also be the previous PC. */
- if (trad_frame_addr_p (info->saved_regs, SPU_LR_REGNUM))
- info->saved_regs[SPU_PC_REGNUM] = info->saved_regs[SPU_LR_REGNUM];
- else
- info->saved_regs[SPU_PC_REGNUM].realreg = SPU_LR_REGNUM;
-
- /* The previous SP will equal the backchain value. */
- trad_frame_set_value (info->saved_regs, SPU_SP_REGNUM, backchain);
-
/* Frame bases. */
info->frame_base = backchain;
info->local_base = reg;
}
}
+
+ /* If we didn't find a frame, we cannot determine SP / return address. */
+ if (info->frame_base == 0)
+ return info;
+
+ /* The previous SP is equal to the CFA. */
+ trad_frame_set_value (info->saved_regs, SPU_SP_REGNUM, info->frame_base);
+
+ /* Read full contents of the unwound link register in order to
+ be able to determine the return address. */
+ if (trad_frame_addr_p (info->saved_regs, SPU_LR_REGNUM))
+ target_read_memory (info->saved_regs[SPU_LR_REGNUM].addr, buf, 16);
+ else
+ 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,
+ slot 0 contains the address of the overlay manager return stub,
+ slot 1 contains the partition number of the overlay section to
+ be returned to, and slot 2 contains the return address within
+ that section. Return the latter address in that case. */
+ if (extract_unsigned_integer (buf + 8, 4, byte_order) != 0)
+ trad_frame_set_value (info->saved_regs, SPU_PC_REGNUM,
+ extract_unsigned_integer (buf + 8, 4, byte_order));
+ else
+ trad_frame_set_value (info->saved_regs, SPU_PC_REGNUM,
+ extract_unsigned_integer (buf, 4, byte_order));
return info;
}
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_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
{
- return frame_unwind_register_unsigned (next_frame, SPU_PC_REGNUM);
+ CORE_ADDR pc = frame_unwind_register_unsigned (next_frame, SPU_PC_REGNUM);
+ /* Mask off interrupt enable bit. */
+ return pc & -4;
}
static CORE_ADDR
return frame_unwind_register_unsigned (next_frame, SPU_SP_REGNUM);
}
+static CORE_ADDR
+spu_read_pc (struct regcache *regcache)
+{
+ ULONGEST pc;
+ regcache_cooked_read_unsigned (regcache, SPU_PC_REGNUM, &pc);
+ /* Mask off interrupt enable bit. */
+ return pc & -4;
+}
+
+static void
+spu_write_pc (struct regcache *regcache, CORE_ADDR pc)
+{
+ /* Keep interrupt enabled state unchanged. */
+ 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));
+}
+
/* Function calling convention. */
+static CORE_ADDR
+spu_frame_align (struct gdbarch *gdbarch, CORE_ADDR sp)
+{
+ return sp & ~15;
+}
+
+static CORE_ADDR
+spu_push_dummy_code (struct gdbarch *gdbarch, CORE_ADDR sp, CORE_ADDR funaddr,
+ struct value **args, int nargs, struct type *value_type,
+ CORE_ADDR *real_pc, CORE_ADDR *bp_addr,
+ struct regcache *regcache)
+{
+ /* Allocate space sufficient for a breakpoint, keeping the stack aligned. */
+ sp = (sp - 4) & ~15;
+ /* Store the address of that breakpoint */
+ *bp_addr = sp;
+ /* The call starts at the callee's entry point. */
+ *real_pc = funaddr;
+
+ return sp;
+}
+
static int
spu_scalar_value_p (struct type *type)
{
int nargs, struct value **args, CORE_ADDR sp,
int struct_return, CORE_ADDR struct_addr)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ CORE_ADDR sp_delta;
int i;
int regnum = SPU_ARG1_REGNUM;
int stack_arg = -1;
/* Set the return address. */
memset (buf, 0, sizeof buf);
- store_unsigned_integer (buf, 4, bp_addr);
+ store_unsigned_integer (buf, 4, byte_order, bp_addr);
regcache_cooked_write (regcache, SPU_LR_REGNUM, buf);
/* If STRUCT_RETURN is true, then the struct return address (in
if (struct_return)
{
memset (buf, 0, sizeof buf);
- store_unsigned_integer (buf, 4, struct_addr);
+ store_unsigned_integer (buf, 4, byte_order, struct_addr);
regcache_cooked_write (regcache, regnum++, buf);
}
/* Allocate stack frame header. */
sp -= 32;
- /* Finally, update the SP register. */
- regcache_cooked_write_unsigned (regcache, SPU_SP_REGNUM, sp);
+ /* Store stack back chain. */
+ regcache_cooked_read (regcache, SPU_RAW_SP_REGNUM, buf);
+ target_write_memory (sp, buf, 16);
+
+ /* Finally, update all slots of the SP register. */
+ sp_delta = sp - extract_unsigned_integer (buf, 4, byte_order);
+ for (i = 0; i < 4; i++)
+ {
+ CORE_ADDR sp_slot = extract_unsigned_integer (buf + 4*i, 4, byte_order);
+ store_unsigned_integer (buf + 4*i, 4, byte_order, sp_slot + sp_delta);
+ }
+ regcache_cooked_write (regcache, SPU_RAW_SP_REGNUM, buf);
return sp;
}
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. */
-void
-spu_software_single_step (enum target_signal signal, int insert_breakpoints_p)
+static int
+spu_software_single_step (struct frame_info *frame)
{
- if (insert_breakpoints_p)
+ struct gdbarch *gdbarch = get_frame_arch (frame);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ CORE_ADDR pc, next_pc;
+ unsigned int insn;
+ int offset, reg;
+ gdb_byte buf[4];
+
+ pc = get_frame_pc (frame);
+
+ if (target_read_memory (pc, buf, 4))
+ return 1;
+ insn = extract_unsigned_integer (buf, 4, byte_order);
+
+ /* Next sequential instruction is at PC + 4, except if the current
+ instruction is a PPE-assisted call, in which case it is at PC + 8.
+ Wrap around LS limit to be on the safe side. */
+ if ((insn & 0xffffff00) == 0x00002100)
+ next_pc = (pc + 8) & (SPU_LS_SIZE - 1);
+ else
+ next_pc = (pc + 4) & (SPU_LS_SIZE - 1);
+
+ insert_single_step_breakpoint (gdbarch, next_pc);
+
+ if (is_branch (insn, &offset, ®))
{
- CORE_ADDR pc, next_pc;
- unsigned int insn;
- int offset, reg;
- gdb_byte buf[4];
+ CORE_ADDR target = offset;
- regcache_cooked_read (current_regcache, SPU_PC_REGNUM, buf);
- pc = extract_unsigned_integer (buf, 4);
+ if (reg == SPU_PC_REGNUM)
+ target += pc;
+ else if (reg != -1)
+ {
+ get_frame_register_bytes (frame, reg, 0, 4, buf);
+ target += extract_unsigned_integer (buf, 4, byte_order) & -4;
+ }
- if (target_read_memory (pc, buf, 4))
- return;
- insn = extract_unsigned_integer (buf, 4);
-
- /* Next sequential instruction is at PC + 4, except if the current
- instruction is a PPE-assisted call, in which case it is at PC + 8.
- Wrap around LS limit to be on the safe side. */
- if ((insn & 0xffffff00) == 0x00002100)
- next_pc = (pc + 8) & (SPU_LS_SIZE - 1) & -4;
+ target = target & (SPU_LS_SIZE - 1);
+ if (target != next_pc)
+ insert_single_step_breakpoint (gdbarch, target);
+ }
+
+ return 1;
+}
+
+
+/* Longjmp support. */
+
+static int
+spu_get_longjmp_target (struct frame_info *frame, CORE_ADDR *pc)
+{
+ struct gdbarch *gdbarch = get_frame_arch (frame);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ gdb_byte buf[4];
+ CORE_ADDR jb_addr;
+
+ /* Jump buffer is pointed to by the argument register $r3. */
+ get_frame_register_bytes (frame, SPU_ARG1_REGNUM, 0, 4, buf);
+ jb_addr = extract_unsigned_integer (buf, 4, byte_order);
+ if (target_read_memory (jb_addr, buf, 4))
+ return 0;
+
+ *pc = extract_unsigned_integer (buf, 4, byte_order);
+ return 1;
+}
+
+
+/* Target overlays for the SPU overlay manager.
+
+ See the documentation of simple_overlay_update for how the
+ interface is supposed to work.
+
+ Data structures used by the overlay manager:
+
+ struct ovly_table
+ {
+ u32 vma;
+ u32 size;
+ u32 pos;
+ u32 buf;
+ } _ovly_table[]; -- one entry per overlay section
+
+ struct ovly_buf_table
+ {
+ u32 mapped;
+ } _ovly_buf_table[]; -- one entry per overlay buffer
+
+ _ovly_table should never change.
+
+ Both tables are aligned to a 16-byte boundary, the symbols _ovly_table
+ and _ovly_buf_table are of type STT_OBJECT and their size set to the size
+ of the respective array. buf in _ovly_table is an index into _ovly_buf_table.
+
+ mapped is an index into _ovly_table. Both the mapped and buf indices start
+ from one to reference the first entry in their respective tables. */
+
+/* Using the per-objfile private data mechanism, we store for each
+ objfile an array of "struct spu_overlay_table" structures, one
+ for each obj_section of the objfile. This structure holds two
+ fields, MAPPED_PTR and MAPPED_VAL. If MAPPED_PTR is zero, this
+ is *not* an overlay section. If it is non-zero, it represents
+ a target address. The overlay section is mapped iff the target
+ integer at this location equals MAPPED_VAL. */
+
+static const struct objfile_data *spu_overlay_data;
+
+struct spu_overlay_table
+ {
+ CORE_ADDR mapped_ptr;
+ CORE_ADDR mapped_val;
+ };
+
+/* Retrieve the overlay table for OBJFILE. If not already cached, read
+ the _ovly_table data structure from the target and initialize the
+ spu_overlay_table data structure from it. */
+static struct spu_overlay_table *
+spu_get_overlay_table (struct objfile *objfile)
+{
+ enum bfd_endian byte_order = bfd_big_endian (objfile->obfd)?
+ BFD_ENDIAN_BIG : BFD_ENDIAN_LITTLE;
+ struct minimal_symbol *ovly_table_msym, *ovly_buf_table_msym;
+ CORE_ADDR ovly_table_base, ovly_buf_table_base;
+ unsigned ovly_table_size, ovly_buf_table_size;
+ struct spu_overlay_table *tbl;
+ struct obj_section *osect;
+ char *ovly_table;
+ int i;
+
+ tbl = objfile_data (objfile, spu_overlay_data);
+ if (tbl)
+ return tbl;
+
+ ovly_table_msym = lookup_minimal_symbol ("_ovly_table", NULL, objfile);
+ if (!ovly_table_msym)
+ return NULL;
+
+ ovly_buf_table_msym = lookup_minimal_symbol ("_ovly_buf_table", NULL, objfile);
+ if (!ovly_buf_table_msym)
+ return NULL;
+
+ ovly_table_base = SYMBOL_VALUE_ADDRESS (ovly_table_msym);
+ ovly_table_size = MSYMBOL_SIZE (ovly_table_msym);
+
+ ovly_buf_table_base = SYMBOL_VALUE_ADDRESS (ovly_buf_table_msym);
+ ovly_buf_table_size = MSYMBOL_SIZE (ovly_buf_table_msym);
+
+ ovly_table = xmalloc (ovly_table_size);
+ read_memory (ovly_table_base, ovly_table, ovly_table_size);
+
+ tbl = OBSTACK_CALLOC (&objfile->objfile_obstack,
+ objfile->sections_end - objfile->sections,
+ struct spu_overlay_table);
+
+ for (i = 0; i < ovly_table_size / 16; i++)
+ {
+ CORE_ADDR vma = extract_unsigned_integer (ovly_table + 16*i + 0,
+ 4, byte_order);
+ CORE_ADDR size = extract_unsigned_integer (ovly_table + 16*i + 4,
+ 4, byte_order);
+ CORE_ADDR pos = extract_unsigned_integer (ovly_table + 16*i + 8,
+ 4, byte_order);
+ CORE_ADDR buf = extract_unsigned_integer (ovly_table + 16*i + 12,
+ 4, byte_order);
+
+ if (buf == 0 || (buf - 1) * 4 >= ovly_buf_table_size)
+ continue;
+
+ ALL_OBJFILE_OSECTIONS (objfile, osect)
+ if (vma == bfd_section_vma (objfile->obfd, osect->the_bfd_section)
+ && pos == osect->the_bfd_section->filepos)
+ {
+ int ndx = osect - objfile->sections;
+ tbl[ndx].mapped_ptr = ovly_buf_table_base + (buf - 1) * 4;
+ tbl[ndx].mapped_val = i + 1;
+ break;
+ }
+ }
+
+ xfree (ovly_table);
+ set_objfile_data (objfile, spu_overlay_data, tbl);
+ return tbl;
+}
+
+/* Read _ovly_buf_table entry from the target to dermine whether
+ OSECT is currently mapped, and update the mapped state. */
+static void
+spu_overlay_update_osect (struct obj_section *osect)
+{
+ enum bfd_endian byte_order = bfd_big_endian (osect->objfile->obfd)?
+ BFD_ENDIAN_BIG : BFD_ENDIAN_LITTLE;
+ struct spu_overlay_table *ovly_table;
+ CORE_ADDR val;
+
+ ovly_table = spu_get_overlay_table (osect->objfile);
+ if (!ovly_table)
+ return;
+
+ ovly_table += osect - osect->objfile->sections;
+ if (ovly_table->mapped_ptr == 0)
+ return;
+
+ val = read_memory_unsigned_integer (ovly_table->mapped_ptr, 4, byte_order);
+ osect->ovly_mapped = (val == ovly_table->mapped_val);
+}
+
+/* If OSECT is NULL, then update all sections' mapped state.
+ If OSECT is non-NULL, then update only OSECT's mapped state. */
+static void
+spu_overlay_update (struct obj_section *osect)
+{
+ /* Just one section. */
+ if (osect)
+ spu_overlay_update_osect (osect);
+
+ /* All sections. */
+ else
+ {
+ struct objfile *objfile;
+
+ ALL_OBJSECTIONS (objfile, osect)
+ if (section_is_overlay (osect))
+ spu_overlay_update_osect (osect);
+ }
+}
+
+/* Whenever a new objfile is loaded, read the target's _ovly_table.
+ If there is one, go through all sections and make sure for non-
+ overlay sections LMA equals VMA, while for overlay sections LMA
+ is larger than local store size. */
+static void
+spu_overlay_new_objfile (struct objfile *objfile)
+{
+ struct spu_overlay_table *ovly_table;
+ struct obj_section *osect;
+
+ /* If we've already touched this file, do nothing. */
+ if (!objfile || objfile_data (objfile, spu_overlay_data) != NULL)
+ return;
+
+ /* Consider only SPU objfiles. */
+ if (bfd_get_arch (objfile->obfd) != bfd_arch_spu)
+ return;
+
+ /* Check if this objfile has overlays. */
+ ovly_table = spu_get_overlay_table (objfile);
+ if (!ovly_table)
+ return;
+
+ /* Now go and fiddle with all the LMAs. */
+ ALL_OBJFILE_OSECTIONS (objfile, osect)
+ {
+ bfd *obfd = objfile->obfd;
+ asection *bsect = osect->the_bfd_section;
+ int ndx = osect - objfile->sections;
+
+ if (ovly_table[ndx].mapped_ptr == 0)
+ bfd_section_lma (obfd, bsect) = bfd_section_vma (obfd, bsect);
+ else
+ bfd_section_lma (obfd, bsect) = bsect->filepos + SPU_LS_SIZE;
+ }
+}
+
+
+/* "info spu" commands. */
+
+static void
+info_spu_event_command (char *args, int from_tty)
+{
+ struct frame_info *frame = get_selected_frame (NULL);
+ ULONGEST event_status = 0;
+ ULONGEST event_mask = 0;
+ struct cleanup *chain;
+ gdb_byte buf[100];
+ char annex[32];
+ LONGEST len;
+ int rc, id;
+
+ if (gdbarch_bfd_arch_info (get_frame_arch (frame))->arch != bfd_arch_spu)
+ error (_("\"info spu\" is only supported on the SPU architecture."));
+
+ id = get_frame_register_unsigned (frame, SPU_ID_REGNUM);
+
+ xsnprintf (annex, sizeof annex, "%d/event_status", id);
+ len = target_read (¤t_target, TARGET_OBJECT_SPU, annex,
+ 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) - 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");
+
+ if (ui_out_is_mi_like_p (uiout))
+ {
+ ui_out_field_fmt (uiout, "event_status",
+ "0x%s", phex_nz (event_status, 4));
+ ui_out_field_fmt (uiout, "event_mask",
+ "0x%s", phex_nz (event_mask, 4));
+ }
+ else
+ {
+ printf_filtered (_("Event Status 0x%s\n"), phex (event_status, 4));
+ printf_filtered (_("Event Mask 0x%s\n"), phex (event_mask, 4));
+ }
+
+ do_cleanups (chain);
+}
+
+static void
+info_spu_signal_command (char *args, int from_tty)
+{
+ struct frame_info *frame = get_selected_frame (NULL);
+ struct gdbarch *gdbarch = get_frame_arch (frame);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ ULONGEST signal1 = 0;
+ ULONGEST signal1_type = 0;
+ int signal1_pending = 0;
+ ULONGEST signal2 = 0;
+ ULONGEST signal2_type = 0;
+ int signal2_pending = 0;
+ struct cleanup *chain;
+ char annex[32];
+ gdb_byte buf[100];
+ LONGEST len;
+ int rc, id;
+
+ if (gdbarch_bfd_arch_info (gdbarch)->arch != bfd_arch_spu)
+ error (_("\"info spu\" is only supported on the SPU architecture."));
+
+ id = get_frame_register_unsigned (frame, SPU_ID_REGNUM);
+
+ xsnprintf (annex, sizeof annex, "%d/signal1", id);
+ len = target_read (¤t_target, TARGET_OBJECT_SPU, annex, buf, 0, 4);
+ if (len < 0)
+ error (_("Could not read signal1."));
+ else if (len == 4)
+ {
+ signal1 = extract_unsigned_integer (buf, 4, byte_order);
+ signal1_pending = 1;
+ }
+
+ xsnprintf (annex, sizeof annex, "%d/signal1_type", id);
+ len = target_read (¤t_target, TARGET_OBJECT_SPU, annex,
+ 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);
+ len = target_read (¤t_target, TARGET_OBJECT_SPU, annex, buf, 0, 4);
+ if (len < 0)
+ error (_("Could not read signal2."));
+ else if (len == 4)
+ {
+ signal2 = extract_unsigned_integer (buf, 4, byte_order);
+ signal2_pending = 1;
+ }
+
+ xsnprintf (annex, sizeof annex, "%d/signal2_type", id);
+ len = target_read (¤t_target, TARGET_OBJECT_SPU, annex,
+ 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");
+
+ if (ui_out_is_mi_like_p (uiout))
+ {
+ ui_out_field_int (uiout, "signal1_pending", signal1_pending);
+ ui_out_field_fmt (uiout, "signal1", "0x%s", phex_nz (signal1, 4));
+ ui_out_field_int (uiout, "signal1_type", signal1_type);
+ ui_out_field_int (uiout, "signal2_pending", signal2_pending);
+ ui_out_field_fmt (uiout, "signal2", "0x%s", phex_nz (signal2, 4));
+ ui_out_field_int (uiout, "signal2_type", signal2_type);
+ }
+ else
+ {
+ if (signal1_pending)
+ printf_filtered (_("Signal 1 control word 0x%s "), phex (signal1, 4));
+ else
+ printf_filtered (_("Signal 1 not pending "));
+
+ if (signal1_type)
+ printf_filtered (_("(Type Or)\n"));
else
- next_pc = (pc + 4) & (SPU_LS_SIZE - 1) & -4;
+ printf_filtered (_("(Type Overwrite)\n"));
- insert_single_step_breakpoint (next_pc);
+ if (signal2_pending)
+ printf_filtered (_("Signal 2 control word 0x%s "), phex (signal2, 4));
+ else
+ printf_filtered (_("Signal 2 not pending "));
+
+ if (signal2_type)
+ printf_filtered (_("(Type Or)\n"));
+ else
+ printf_filtered (_("(Type Overwrite)\n"));
+ }
+
+ do_cleanups (chain);
+}
- if (is_branch (insn, &offset, ®))
+static void
+info_spu_mailbox_list (gdb_byte *buf, int nr, enum bfd_endian byte_order,
+ const char *field, const char *msg)
+{
+ struct cleanup *chain;
+ int i;
+
+ if (nr <= 0)
+ return;
+
+ chain = make_cleanup_ui_out_table_begin_end (uiout, 1, nr, "mbox");
+
+ ui_out_table_header (uiout, 32, ui_left, field, msg);
+ ui_out_table_body (uiout);
+
+ for (i = 0; i < nr; i++)
+ {
+ struct cleanup *val_chain;
+ ULONGEST val;
+ val_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "mbox");
+ val = extract_unsigned_integer (buf + 4*i, 4, byte_order);
+ ui_out_field_fmt (uiout, field, "0x%s", phex (val, 4));
+ do_cleanups (val_chain);
+
+ if (!ui_out_is_mi_like_p (uiout))
+ printf_filtered ("\n");
+ }
+
+ do_cleanups (chain);
+}
+
+static void
+info_spu_mailbox_command (char *args, int from_tty)
+{
+ struct frame_info *frame = get_selected_frame (NULL);
+ struct gdbarch *gdbarch = get_frame_arch (frame);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ struct cleanup *chain;
+ char annex[32];
+ gdb_byte buf[1024];
+ LONGEST len;
+ int i, id;
+
+ if (gdbarch_bfd_arch_info (gdbarch)->arch != bfd_arch_spu)
+ error (_("\"info spu\" is only supported on the SPU architecture."));
+
+ id = get_frame_register_unsigned (frame, SPU_ID_REGNUM);
+
+ chain = make_cleanup_ui_out_tuple_begin_end (uiout, "SPUInfoMailbox");
+
+ xsnprintf (annex, sizeof annex, "%d/mbox_info", id);
+ len = target_read (¤t_target, TARGET_OBJECT_SPU, annex,
+ buf, 0, sizeof buf);
+ if (len < 0)
+ error (_("Could not read mbox_info."));
+
+ info_spu_mailbox_list (buf, len / 4, byte_order,
+ "mbox", "SPU Outbound Mailbox");
+
+ xsnprintf (annex, sizeof annex, "%d/ibox_info", id);
+ len = target_read (¤t_target, TARGET_OBJECT_SPU, annex,
+ buf, 0, sizeof buf);
+ if (len < 0)
+ error (_("Could not read ibox_info."));
+
+ info_spu_mailbox_list (buf, len / 4, byte_order,
+ "ibox", "SPU Outbound Interrupt Mailbox");
+
+ xsnprintf (annex, sizeof annex, "%d/wbox_info", id);
+ len = target_read (¤t_target, TARGET_OBJECT_SPU, annex,
+ buf, 0, sizeof buf);
+ if (len < 0)
+ error (_("Could not read wbox_info."));
+
+ info_spu_mailbox_list (buf, len / 4, byte_order,
+ "wbox", "SPU Inbound Mailbox");
+
+ do_cleanups (chain);
+}
+
+static ULONGEST
+spu_mfc_get_bitfield (ULONGEST word, int first, int last)
+{
+ ULONGEST mask = ~(~(ULONGEST)0 << (last - first + 1));
+ return (word >> (63 - last)) & mask;
+}
+
+static void
+info_spu_dma_cmdlist (gdb_byte *buf, int nr, enum bfd_endian byte_order)
+{
+ static char *spu_mfc_opcode[256] =
+ {
+ /* 00 */ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ /* 10 */ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ /* 20 */ "put", "putb", "putf", NULL, "putl", "putlb", "putlf", NULL,
+ "puts", "putbs", "putfs", NULL, NULL, NULL, NULL, NULL,
+ /* 30 */ "putr", "putrb", "putrf", NULL, "putrl", "putrlb", "putrlf", NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ /* 40 */ "get", "getb", "getf", NULL, "getl", "getlb", "getlf", NULL,
+ "gets", "getbs", "getfs", NULL, NULL, NULL, NULL, NULL,
+ /* 50 */ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ /* 60 */ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ /* 70 */ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ /* 80 */ "sdcrt", "sdcrtst", NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, "sdcrz", NULL, NULL, NULL, "sdcrst", NULL, "sdcrf",
+ /* 90 */ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ /* a0 */ "sndsig", "sndsigb", "sndsigf", NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ /* b0 */ "putlluc", NULL, NULL, NULL, "putllc", NULL, NULL, NULL,
+ "putqlluc", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ /* c0 */ "barrier", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ "mfceieio", NULL, NULL, NULL, "mfcsync", NULL, NULL, NULL,
+ /* d0 */ "getllar", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ /* e0 */ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ /* f0 */ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ };
+
+ int *seq = alloca (nr * sizeof (int));
+ int done = 0;
+ struct cleanup *chain;
+ int i, j;
+
+
+ /* Determine sequence in which to display (valid) entries. */
+ for (i = 0; i < nr; i++)
+ {
+ /* Search for the first valid entry all of whose
+ dependencies are met. */
+ for (j = 0; j < nr; j++)
{
- CORE_ADDR target = offset;
+ ULONGEST mfc_cq_dw3;
+ ULONGEST dependencies;
- if (reg == SPU_PC_REGNUM)
- target += pc;
- else if (reg != -1)
- {
- regcache_cooked_read_part (current_regcache, reg, 0, 4, buf);
- target += extract_unsigned_integer (buf, 4);
- }
+ if (done & (1 << (nr - 1 - j)))
+ continue;
- target = target & (SPU_LS_SIZE - 1) & -4;
- if (target != next_pc)
- insert_single_step_breakpoint (target);
+ mfc_cq_dw3
+ = extract_unsigned_integer (buf + 32*j + 24,8, byte_order);
+ if (!spu_mfc_get_bitfield (mfc_cq_dw3, 16, 16))
+ continue;
+
+ dependencies = spu_mfc_get_bitfield (mfc_cq_dw3, 0, nr - 1);
+ if ((dependencies & done) != dependencies)
+ continue;
+
+ seq[i] = j;
+ done |= 1 << (nr - 1 - j);
+ break;
}
+
+ if (j == nr)
+ break;
+ }
+
+ nr = i;
+
+
+ chain = make_cleanup_ui_out_table_begin_end (uiout, 10, nr, "dma_cmd");
+
+ ui_out_table_header (uiout, 7, ui_left, "opcode", "Opcode");
+ ui_out_table_header (uiout, 3, ui_left, "tag", "Tag");
+ ui_out_table_header (uiout, 3, ui_left, "tid", "TId");
+ ui_out_table_header (uiout, 3, ui_left, "rid", "RId");
+ ui_out_table_header (uiout, 18, ui_left, "ea", "EA");
+ ui_out_table_header (uiout, 7, ui_left, "lsa", "LSA");
+ ui_out_table_header (uiout, 7, ui_left, "size", "Size");
+ ui_out_table_header (uiout, 7, ui_left, "lstaddr", "LstAddr");
+ ui_out_table_header (uiout, 7, ui_left, "lstsize", "LstSize");
+ ui_out_table_header (uiout, 1, ui_left, "error_p", "E");
+
+ ui_out_table_body (uiout);
+
+ for (i = 0; i < nr; i++)
+ {
+ struct cleanup *cmd_chain;
+ ULONGEST mfc_cq_dw0;
+ ULONGEST mfc_cq_dw1;
+ ULONGEST mfc_cq_dw2;
+ int mfc_cmd_opcode, mfc_cmd_tag, rclass_id, tclass_id;
+ int lsa, size, list_lsa, list_size, mfc_lsa, mfc_size;
+ ULONGEST mfc_ea;
+ int list_valid_p, noop_valid_p, qw_valid_p, ea_valid_p, cmd_error_p;
+
+ /* Decode contents of MFC Command Queue Context Save/Restore Registers.
+ See "Cell Broadband Engine Registers V1.3", section 3.3.2.1. */
+
+ mfc_cq_dw0
+ = extract_unsigned_integer (buf + 32*seq[i], 8, byte_order);
+ mfc_cq_dw1
+ = extract_unsigned_integer (buf + 32*seq[i] + 8, 8, byte_order);
+ mfc_cq_dw2
+ = extract_unsigned_integer (buf + 32*seq[i] + 16, 8, byte_order);
+
+ list_lsa = spu_mfc_get_bitfield (mfc_cq_dw0, 0, 14);
+ list_size = spu_mfc_get_bitfield (mfc_cq_dw0, 15, 26);
+ mfc_cmd_opcode = spu_mfc_get_bitfield (mfc_cq_dw0, 27, 34);
+ mfc_cmd_tag = spu_mfc_get_bitfield (mfc_cq_dw0, 35, 39);
+ list_valid_p = spu_mfc_get_bitfield (mfc_cq_dw0, 40, 40);
+ rclass_id = spu_mfc_get_bitfield (mfc_cq_dw0, 41, 43);
+ tclass_id = spu_mfc_get_bitfield (mfc_cq_dw0, 44, 46);
+
+ mfc_ea = spu_mfc_get_bitfield (mfc_cq_dw1, 0, 51) << 12
+ | spu_mfc_get_bitfield (mfc_cq_dw2, 25, 36);
+
+ mfc_lsa = spu_mfc_get_bitfield (mfc_cq_dw2, 0, 13);
+ mfc_size = spu_mfc_get_bitfield (mfc_cq_dw2, 14, 24);
+ noop_valid_p = spu_mfc_get_bitfield (mfc_cq_dw2, 37, 37);
+ qw_valid_p = spu_mfc_get_bitfield (mfc_cq_dw2, 38, 38);
+ ea_valid_p = spu_mfc_get_bitfield (mfc_cq_dw2, 39, 39);
+ cmd_error_p = spu_mfc_get_bitfield (mfc_cq_dw2, 40, 40);
+
+ cmd_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "cmd");
+
+ if (spu_mfc_opcode[mfc_cmd_opcode])
+ ui_out_field_string (uiout, "opcode", spu_mfc_opcode[mfc_cmd_opcode]);
+ else
+ ui_out_field_int (uiout, "opcode", mfc_cmd_opcode);
+
+ ui_out_field_int (uiout, "tag", mfc_cmd_tag);
+ ui_out_field_int (uiout, "tid", tclass_id);
+ ui_out_field_int (uiout, "rid", rclass_id);
+
+ if (ea_valid_p)
+ ui_out_field_fmt (uiout, "ea", "0x%s", phex (mfc_ea, 8));
+ else
+ ui_out_field_skip (uiout, "ea");
+
+ ui_out_field_fmt (uiout, "lsa", "0x%05x", mfc_lsa << 4);
+ if (qw_valid_p)
+ ui_out_field_fmt (uiout, "size", "0x%05x", mfc_size << 4);
+ else
+ ui_out_field_fmt (uiout, "size", "0x%05x", mfc_size);
+
+ if (list_valid_p)
+ {
+ ui_out_field_fmt (uiout, "lstaddr", "0x%05x", list_lsa << 3);
+ ui_out_field_fmt (uiout, "lstsize", "0x%05x", list_size << 3);
+ }
+ else
+ {
+ ui_out_field_skip (uiout, "lstaddr");
+ ui_out_field_skip (uiout, "lstsize");
+ }
+
+ if (cmd_error_p)
+ ui_out_field_string (uiout, "error_p", "*");
+ else
+ ui_out_field_skip (uiout, "error_p");
+
+ do_cleanups (cmd_chain);
+
+ if (!ui_out_is_mi_like_p (uiout))
+ printf_filtered ("\n");
+ }
+
+ do_cleanups (chain);
+}
+
+static void
+info_spu_dma_command (char *args, int from_tty)
+{
+ struct frame_info *frame = get_selected_frame (NULL);
+ struct gdbarch *gdbarch = get_frame_arch (frame);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ ULONGEST dma_info_type;
+ ULONGEST dma_info_mask;
+ ULONGEST dma_info_status;
+ ULONGEST dma_info_stall_and_notify;
+ ULONGEST dma_info_atomic_command_status;
+ struct cleanup *chain;
+ char annex[32];
+ gdb_byte buf[1024];
+ LONGEST len;
+ int i, id;
+
+ if (gdbarch_bfd_arch_info (get_frame_arch (frame))->arch != bfd_arch_spu)
+ error (_("\"info spu\" is only supported on the SPU architecture."));
+
+ id = get_frame_register_unsigned (frame, SPU_ID_REGNUM);
+
+ xsnprintf (annex, sizeof annex, "%d/dma_info", id);
+ len = target_read (¤t_target, TARGET_OBJECT_SPU, annex,
+ buf, 0, 40 + 16 * 32);
+ if (len <= 0)
+ error (_("Could not read dma_info."));
+
+ dma_info_type
+ = extract_unsigned_integer (buf, 8, byte_order);
+ dma_info_mask
+ = extract_unsigned_integer (buf + 8, 8, byte_order);
+ dma_info_status
+ = extract_unsigned_integer (buf + 16, 8, byte_order);
+ dma_info_stall_and_notify
+ = extract_unsigned_integer (buf + 24, 8, byte_order);
+ dma_info_atomic_command_status
+ = extract_unsigned_integer (buf + 32, 8, byte_order);
+
+ chain = make_cleanup_ui_out_tuple_begin_end (uiout, "SPUInfoDMA");
+
+ if (ui_out_is_mi_like_p (uiout))
+ {
+ ui_out_field_fmt (uiout, "dma_info_type", "0x%s",
+ phex_nz (dma_info_type, 4));
+ ui_out_field_fmt (uiout, "dma_info_mask", "0x%s",
+ phex_nz (dma_info_mask, 4));
+ ui_out_field_fmt (uiout, "dma_info_status", "0x%s",
+ phex_nz (dma_info_status, 4));
+ ui_out_field_fmt (uiout, "dma_info_stall_and_notify", "0x%s",
+ phex_nz (dma_info_stall_and_notify, 4));
+ ui_out_field_fmt (uiout, "dma_info_atomic_command_status", "0x%s",
+ phex_nz (dma_info_atomic_command_status, 4));
}
else
- remove_single_step_breakpoints ();
+ {
+ const char *query_msg = _("no query pending");
+
+ if (dma_info_type & 4)
+ switch (dma_info_type & 3)
+ {
+ case 1: query_msg = _("'any' query pending"); break;
+ case 2: query_msg = _("'all' query pending"); break;
+ default: query_msg = _("undefined query type"); break;
+ }
+
+ printf_filtered (_("Tag-Group Status 0x%s\n"),
+ phex (dma_info_status, 4));
+ printf_filtered (_("Tag-Group Mask 0x%s (%s)\n"),
+ phex (dma_info_mask, 4), query_msg);
+ printf_filtered (_("Stall-and-Notify 0x%s\n"),
+ phex (dma_info_stall_and_notify, 4));
+ printf_filtered (_("Atomic Cmd Status 0x%s\n"),
+ phex (dma_info_atomic_command_status, 4));
+ printf_filtered ("\n");
+ }
+
+ info_spu_dma_cmdlist (buf + 40, 16, byte_order);
+ do_cleanups (chain);
+}
+
+static void
+info_spu_proxydma_command (char *args, int from_tty)
+{
+ struct frame_info *frame = get_selected_frame (NULL);
+ struct gdbarch *gdbarch = get_frame_arch (frame);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ ULONGEST dma_info_type;
+ ULONGEST dma_info_mask;
+ ULONGEST dma_info_status;
+ struct cleanup *chain;
+ char annex[32];
+ gdb_byte buf[1024];
+ LONGEST len;
+ int i, id;
+
+ if (gdbarch_bfd_arch_info (gdbarch)->arch != bfd_arch_spu)
+ error (_("\"info spu\" is only supported on the SPU architecture."));
+
+ id = get_frame_register_unsigned (frame, SPU_ID_REGNUM);
+
+ xsnprintf (annex, sizeof annex, "%d/proxydma_info", id);
+ len = target_read (¤t_target, TARGET_OBJECT_SPU, annex,
+ buf, 0, 24 + 8 * 32);
+ if (len <= 0)
+ error (_("Could not read proxydma_info."));
+
+ dma_info_type = extract_unsigned_integer (buf, 8, byte_order);
+ dma_info_mask = extract_unsigned_integer (buf + 8, 8, byte_order);
+ dma_info_status = extract_unsigned_integer (buf + 16, 8, byte_order);
+
+ chain = make_cleanup_ui_out_tuple_begin_end (uiout, "SPUInfoProxyDMA");
+
+ if (ui_out_is_mi_like_p (uiout))
+ {
+ ui_out_field_fmt (uiout, "proxydma_info_type", "0x%s",
+ phex_nz (dma_info_type, 4));
+ ui_out_field_fmt (uiout, "proxydma_info_mask", "0x%s",
+ phex_nz (dma_info_mask, 4));
+ ui_out_field_fmt (uiout, "proxydma_info_status", "0x%s",
+ phex_nz (dma_info_status, 4));
+ }
+ else
+ {
+ const char *query_msg;
+
+ switch (dma_info_type & 3)
+ {
+ case 0: query_msg = _("no query pending"); break;
+ case 1: query_msg = _("'any' query pending"); break;
+ case 2: query_msg = _("'all' query pending"); break;
+ default: query_msg = _("undefined query type"); break;
+ }
+
+ printf_filtered (_("Tag-Group Status 0x%s\n"),
+ phex (dma_info_status, 4));
+ printf_filtered (_("Tag-Group Mask 0x%s (%s)\n"),
+ phex (dma_info_mask, 4), query_msg);
+ printf_filtered ("\n");
+ }
+
+ info_spu_dma_cmdlist (buf + 24, 8, byte_order);
+ do_cleanups (chain);
+}
+
+static void
+info_spu_command (char *args, int from_tty)
+{
+ printf_unfiltered (_("\"info spu\" must be followed by the name of an SPU facility.\n"));
+ help_list (infospucmdlist, "info spu ", -1, gdb_stdout);
}
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_num_pseudo_regs (gdbarch, SPU_NUM_PSEUDO_REGS);
set_gdbarch_sp_regnum (gdbarch, SPU_SP_REGNUM);
set_gdbarch_pc_regnum (gdbarch, SPU_PC_REGNUM);
+ set_gdbarch_read_pc (gdbarch, spu_read_pc);
+ set_gdbarch_write_pc (gdbarch, spu_write_pc);
set_gdbarch_register_name (gdbarch, spu_register_name);
set_gdbarch_register_type (gdbarch, spu_register_type);
set_gdbarch_pseudo_register_read (gdbarch, spu_pseudo_register_read);
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_frame_red_zone_size (gdbarch, 2000);
+ set_gdbarch_push_dummy_code (gdbarch, spu_push_dummy_code);
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);
set_gdbarch_virtual_frame_pointer (gdbarch, spu_virtual_frame_pointer);
set_gdbarch_frame_args_skip (gdbarch, 0);
set_gdbarch_skip_prologue (gdbarch, spu_skip_prologue);
+ set_gdbarch_in_function_epilogue_p (gdbarch, spu_in_function_epilogue_p);
/* Breakpoints. */
set_gdbarch_decr_pc_after_break (gdbarch, 4);
set_gdbarch_breakpoint_from_pc (gdbarch, spu_breakpoint_from_pc);
set_gdbarch_cannot_step_breakpoint (gdbarch, 1);
set_gdbarch_software_single_step (gdbarch, spu_software_single_step);
+ set_gdbarch_get_longjmp_target (gdbarch, spu_get_longjmp_target);
+
+ /* Overlays. */
+ set_gdbarch_overlay_update (gdbarch, spu_overlay_update);
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;
-}
+/* Provide a prototype to silence -Wmissing-prototypes. */
+extern initialize_file_ftype _initialize_spu_tdep;
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 ();
+
+ /* Add root prefix command for all "info spu" commands. */
+ add_prefix_cmd ("spu", class_info, info_spu_command,
+ _("Various SPU specific commands."),
+ &infospucmdlist, "info spu ", 0, &infolist);
+
+ /* Add various "info spu" commands. */
+ add_cmd ("event", class_info, info_spu_event_command,
+ _("Display SPU event facility status.\n"),
+ &infospucmdlist);
+ add_cmd ("signal", class_info, info_spu_signal_command,
+ _("Display SPU signal notification facility status.\n"),
+ &infospucmdlist);
+ add_cmd ("mailbox", class_info, info_spu_mailbox_command,
+ _("Display SPU mailbox facility status.\n"),
+ &infospucmdlist);
+ add_cmd ("dma", class_info, info_spu_dma_command,
+ _("Display MFC DMA status.\n"),
+ &infospucmdlist);
+ add_cmd ("proxydma", class_info, info_spu_proxydma_command,
+ _("Display MFC Proxy-DMA status.\n"),
+ &infospucmdlist);
}
projects / deliverable / binutils-gdb.git / blobdiff