/* SPU target-dependent code for GDB, the GNU debugger.
- Copyright (C) 2006, 2007, 2008 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>.
if (!tdep->spu_builtin_type_vec128)
{
+ const struct builtin_type *bt = builtin_type (gdbarch);
struct type *t;
- t = init_composite_type ("__spu_builtin_type_vec128", TYPE_CODE_UNION);
- append_composite_type_field (t, "uint128", builtin_type_int128);
+ 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 (builtin_type_int64, 2));
+ init_vector_type (bt->builtin_int64, 2));
append_composite_type_field (t, "v4_int32",
- init_vector_type (builtin_type_int32, 4));
+ init_vector_type (bt->builtin_int32, 4));
append_composite_type_field (t, "v8_int16",
- init_vector_type (builtin_type_int16, 8));
+ init_vector_type (bt->builtin_int16, 8));
append_composite_type_field (t, "v16_int8",
- init_vector_type (builtin_type_int8, 16));
+ init_vector_type (bt->builtin_int8, 16));
append_composite_type_field (t, "v2_double",
- init_vector_type (builtin_type_double, 2));
+ init_vector_type (bt->builtin_double, 2));
append_composite_type_field (t, "v4_float",
- init_vector_type (builtin_type_float, 4));
+ init_vector_type (bt->builtin_float, 4));
TYPE_VECTOR (t) = 1;
TYPE_NAME (t) = "spu_builtin_type_vec128";
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_uint128;
+ return builtin_type (gdbarch)->builtin_uint128;
case SPU_SRR0_REGNUM:
- return builtin_type_uint32;
+ return builtin_type (gdbarch)->builtin_uint32;
case SPU_LSLR_REGNUM:
- return builtin_type_uint32;
+ return builtin_type (gdbarch)->builtin_uint32;
case SPU_DECR_REGNUM:
- return builtin_type_uint32;
+ return builtin_type (gdbarch)->builtin_uint32;
case SPU_DECR_STATUS_REGNUM:
- return builtin_type_uint32;
+ return builtin_type (gdbarch)->builtin_uint32;
default:
internal_error (__FILE__, __LINE__, "invalid regnum");
/* Address conversion. */
static CORE_ADDR
-spu_pointer_to_address (struct type *type, const gdb_byte *buf)
+spu_pointer_to_address (struct gdbarch *gdbarch,
+ 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. */
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)
{
+ CORE_ADDR sp_delta;
int i;
int regnum = SPU_ARG1_REGNUM;
int stack_arg = -1;
regcache_cooked_read (regcache, SPU_RAW_SP_REGNUM, buf);
target_write_memory (sp, buf, 16);
- /* Finally, update the SP register. */
- regcache_cooked_write_unsigned (regcache, SPU_SP_REGNUM, sp);
+ /* Finally, update all slots of the SP register. */
+ sp_delta = sp - extract_unsigned_integer (buf, 4);
+ for (i = 0; i < 4; i++)
+ {
+ CORE_ADDR sp_slot = extract_unsigned_integer (buf + 4*i, 4);
+ store_unsigned_integer (buf + 4*i, 4, sp_slot + sp_delta);
+ }
+ regcache_cooked_write (regcache, SPU_RAW_SP_REGNUM, buf);
return sp;
}
/* Software single-stepping support. */
-int
+static int
spu_software_single_step (struct frame_info *frame)
{
CORE_ADDR pc, next_pc;
return 1;
}
+
+/* Longjmp support. */
+
+static int
+spu_get_longjmp_target (struct frame_info *frame, CORE_ADDR *pc)
+{
+ 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);
+ if (target_read_memory (jb_addr, buf, 4))
+ return 0;
+
+ *pc = extract_unsigned_integer (buf, 4);
+ return 1;
+}
+
+
/* Target overlays for the SPU overlay manager.
See the documentation of simple_overlay_update for how the
struct objfile *objfile;
ALL_OBJSECTIONS (objfile, osect)
- if (section_is_overlay (osect->the_bfd_section))
+ if (section_is_overlay (osect))
spu_overlay_update_osect (osect);
}
}
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_dummy_id (gdbarch, spu_dummy_id);
set_gdbarch_return_value (gdbarch, spu_return_value);
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;
}
+/* Provide a prototype to silence -Wmissing-prototypes. */
+extern initialize_file_ftype _initialize_spu_tdep;
+
void
_initialize_spu_tdep (void)
{
projects / deliverable / binutils-gdb.git / blobdiff