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"
return feature->name;
}
+/* Predefined types. Note that none of these types depend on the
+ current architecture; some of the builtin_type_foo variables are
+ swapped based on the architecture. */
+static struct
+{
+ const char *name;
+ struct type **type;
+} tdesc_predefined_types[] =
+ {
+ { "int8", &builtin_type_int8 },
+ { "int16", &builtin_type_int16 },
+ { "int32", &builtin_type_int32 },
+ { "int64", &builtin_type_int64 },
+ { "int128", &builtin_type_int128 },
+ { "uint8", &builtin_type_uint8 },
+ { "uint16", &builtin_type_uint16 },
+ { "uint32", &builtin_type_uint32 },
+ { "uint64", &builtin_type_uint64 },
+ { "uint128", &builtin_type_uint128 },
+ { "ieee_single", &builtin_type_ieee_single },
+ { "ieee_double", &builtin_type_ieee_double },
+ { "arm_fpa_ext", &builtin_type_arm_ext }
+ };
+
/* Return the type associated with ID in the context of FEATURE, or
NULL if none. */
if (strcmp (TYPE_NAME (gdb_type), id) == 0)
return gdb_type;
- /* Next try some predefined types. Note that none of these types
- depend on the current architecture; some of the builtin_type_foo
- variables are swapped based on the architecture. */
- if (strcmp (id, "int8") == 0)
- return builtin_type_int8;
-
- if (strcmp (id, "int16") == 0)
- return builtin_type_int16;
-
- if (strcmp (id, "int32") == 0)
- return builtin_type_int32;
-
- if (strcmp (id, "int64") == 0)
- return builtin_type_int64;
-
- if (strcmp (id, "uint8") == 0)
- return builtin_type_uint8;
-
- if (strcmp (id, "uint16") == 0)
- return builtin_type_uint16;
-
- if (strcmp (id, "uint32") == 0)
- return builtin_type_uint32;
-
- if (strcmp (id, "uint64") == 0)
- return builtin_type_uint64;
-
- if (strcmp (id, "ieee_single") == 0)
- return builtin_type_ieee_single;
-
- if (strcmp (id, "ieee_double") == 0)
- return builtin_type_ieee_double;
-
- if (strcmp (id, "arm_fpa_ext") == 0)
- return builtin_type_arm_ext;
+ /* Next try the predefined types. */
+ for (ix = 0; ix < ARRAY_SIZE (tdesc_predefined_types); ix++)
+ if (strcmp (tdesc_predefined_types[ix].name, id) == 0)
+ return *tdesc_predefined_types[ix].type;
return NULL;
}
/* Search FEATURE for a register named NAME. */
-int
-tdesc_numbered_register (const struct tdesc_feature *feature,
- struct tdesc_arch_data *data,
- int regno, const char *name)
+static struct tdesc_reg *
+tdesc_find_register_early (const struct tdesc_feature *feature,
+ const char *name)
{
int ixr;
struct tdesc_reg *reg;
VEC_iterate (tdesc_reg_p, feature->registers, ixr, reg);
ixr++)
if (strcasecmp (reg->name, name) == 0)
- {
- /* Make sure the vector includes a REGNO'th element. */
- while (regno >= VEC_length (tdesc_reg_p, data->registers))
- VEC_safe_push (tdesc_reg_p, data->registers, NULL);
- VEC_replace (tdesc_reg_p, data->registers, regno, reg);
- return 1;
- }
+ return reg;
- return 0;
+ return NULL;
}
-/* Search FEATURE for a register whose name is in NAMES. */
+/* Search FEATURE for a register named NAME. Assign REGNO to it. */
+
+int
+tdesc_numbered_register (const struct tdesc_feature *feature,
+ struct tdesc_arch_data *data,
+ int regno, const char *name)
+{
+ struct tdesc_reg *reg = tdesc_find_register_early (feature, name);
+
+ if (reg == NULL)
+ return 0;
+
+ /* Make sure the vector includes a REGNO'th element. */
+ while (regno >= VEC_length (tdesc_reg_p, data->registers))
+ VEC_safe_push (tdesc_reg_p, data->registers, NULL);
+ VEC_replace (tdesc_reg_p, data->registers, regno, reg);
+ return 1;
+}
+
+/* Search FEATURE for a register whose name is in NAMES and assign
+ REGNO to it. */
int
tdesc_numbered_register_choices (const struct tdesc_feature *feature,
return 0;
}
+/* Search FEATURE for a register named NAME, and return its size in
+ bits. The register must exist. */
+
+int
+tdesc_register_size (const struct tdesc_feature *feature,
+ const char *name)
+{
+ struct tdesc_reg *reg = tdesc_find_register_early (feature, name);
+
+ gdb_assert (reg != NULL);
+ return reg->bitsize;
+}
+
/* Look up a register by its GDB internal register number. */
static struct tdesc_reg *
from an architecture-provided pseudo_register_name method. */
const char *
-tdesc_register_name (int regno)
+tdesc_register_name (struct gdbarch *gdbarch, int regno)
{
- struct tdesc_reg *reg = tdesc_find_register (current_gdbarch, regno);
- int num_regs = gdbarch_num_regs (current_gdbarch);
- int num_pseudo_regs = gdbarch_num_pseudo_regs (current_gdbarch);
+ struct tdesc_reg *reg = tdesc_find_register (gdbarch, regno);
+ int num_regs = gdbarch_num_regs (gdbarch);
+ int num_pseudo_regs = gdbarch_num_pseudo_regs (gdbarch);
if (reg != NULL)
return reg->name;
if (regno >= num_regs && regno < num_regs + num_pseudo_regs)
{
- struct tdesc_arch_data *data = gdbarch_data (current_gdbarch,
- tdesc_data);
+ struct tdesc_arch_data *data = gdbarch_data (gdbarch, tdesc_data);
gdb_assert (data->pseudo_register_name != NULL);
- return data->pseudo_register_name (regno);
+ return data->pseudo_register_name (gdbarch, regno);
}
return "";
void
tdesc_use_registers (struct gdbarch *gdbarch,
+ const struct target_desc *target_desc,
struct tdesc_arch_data *early_data)
{
int num_regs = gdbarch_num_regs (gdbarch);
int i, ixf, ixr;
- const struct target_desc *target_desc;
struct tdesc_feature *feature;
struct tdesc_reg *reg;
struct tdesc_arch_data *data;
htab_t reg_hash;
- target_desc = gdbarch_target_desc (gdbarch);
-
/* We can't use the description for registers if it doesn't describe
any. This function should only be called after validating
registers, so the caller should know that registers are
target_find_description ();
}
+static const char *
+tdesc_type_id (struct type *type)
+{
+ int ix;
+
+ for (ix = 0; ix < ARRAY_SIZE (tdesc_predefined_types); ix++)
+ if (TYPE_MAIN_TYPE (*tdesc_predefined_types[ix].type)
+ == TYPE_MAIN_TYPE (type))
+ return tdesc_predefined_types[ix].name;
+
+ return TYPE_NAME (type);
+}
+
+static void
+maint_print_c_tdesc_cmd (char *args, int from_tty)
+{
+ const struct target_desc *tdesc;
+ const char *filename, *inp;
+ char *function, *outp;
+ struct property *prop;
+ struct tdesc_feature *feature;
+ struct tdesc_reg *reg;
+ struct type *type;
+ int ix, ix2, ix3;
+
+ /* Use the global target-supplied description, not the current
+ architecture's. This lets a GDB for one architecture generate C
+ for another architecture's description, even though the gdbarch
+ initialization code will reject the new description. */
+ tdesc = current_target_desc;
+ if (tdesc == NULL)
+ error (_("There is no target description to print."));
+
+ if (target_description_filename == NULL)
+ error (_("The current target description did not come from an XML file."));
+
+ filename = lbasename (target_description_filename);
+ function = xmalloc (strlen (filename) + 1);
+ for (inp = filename, outp = function; *inp != '\0'; inp++)
+ if (*inp == '.')
+ break;
+ else if (*inp == '-')
+ *outp++ = '_';
+ else
+ *outp++ = *inp;
+ *outp = '\0';
+
+ /* Standard boilerplate. */
+ printf_unfiltered ("/* THIS FILE IS GENERATED. Original: %s */\n\n",
+ filename);
+ printf_unfiltered ("#include \"defs.h\"\n");
+ printf_unfiltered ("#include \"gdbtypes.h\"\n");
+ printf_unfiltered ("#include \"target-descriptions.h\"\n");
+ printf_unfiltered ("\n");
+
+ printf_unfiltered ("struct target_desc *tdesc_%s;\n", function);
+ printf_unfiltered ("static void\n");
+ printf_unfiltered ("initialize_tdesc_%s (void)\n", function);
+ printf_unfiltered ("{\n");
+ printf_unfiltered
+ (" struct target_desc *result = allocate_target_description ();\n");
+ printf_unfiltered (" struct tdesc_feature *feature;\n");
+ printf_unfiltered (" struct type *field_type, *type;\n");
+ printf_unfiltered ("\n");
+
+ if (tdesc_architecture (tdesc) != NULL)
+ {
+ printf_unfiltered
+ (" set_tdesc_architecture (result, bfd_scan_arch (\"%s\"));\n",
+ tdesc_architecture (tdesc)->printable_name);
+ printf_unfiltered ("\n");
+ }
+
+ for (ix = 0; VEC_iterate (property_s, tdesc->properties, ix, prop);
+ ix++)
+ {
+ printf_unfiltered (" set_tdesc_property (result, \"%s\", \"%s\");\n",
+ prop->key, prop->value);
+ }
+
+ for (ix = 0;
+ VEC_iterate (tdesc_feature_p, tdesc->features, ix, feature);
+ ix++)
+ {
+ printf_unfiltered (" feature = tdesc_create_feature (result, \"%s\");\n",
+ feature->name);
+
+ for (ix2 = 0;
+ VEC_iterate (type_p, feature->types, ix2, type);
+ ix2++)
+ {
+ switch (TYPE_CODE (type))
+ {
+ case TYPE_CODE_ARRAY:
+ printf_unfiltered
+ (" field_type = tdesc_named_type (feature, \"%s\");\n",
+ tdesc_type_id (TYPE_TARGET_TYPE (type)));
+ printf_unfiltered
+ (" type = init_vector_type (field_type, %d);\n",
+ TYPE_LENGTH (type) / TYPE_LENGTH (TYPE_TARGET_TYPE (type)));
+ printf_unfiltered
+ (" TYPE_NAME (type) = xstrdup (\"%s\");\n", TYPE_NAME (type));
+ break;
+ case TYPE_CODE_UNION:
+ printf_unfiltered
+ (" type = init_composite_type (NULL, TYPE_CODE_UNION);\n");
+ printf_unfiltered
+ (" TYPE_NAME (type) = xstrdup (\"%s\");\n", TYPE_NAME (type));
+ for (ix3 = 0; ix3 < TYPE_NFIELDS (type); ix3++)
+ {
+ printf_unfiltered
+ (" field_type = tdesc_named_type (feature, \"%s\");\n",
+ tdesc_type_id (TYPE_FIELD_TYPE (type, ix3)));
+ printf_unfiltered
+ (" append_composite_type_field (type, "
+ "xstrdup (\"%s\"), field_type);\n",
+ TYPE_FIELD_NAME (type, ix3));
+ }
+ if (TYPE_VECTOR (type))
+ printf_unfiltered
+ (" TYPE_FLAGS (type) |= TYPE_FLAG_VECTOR;\n");
+ break;
+ default:
+ error (_("C output is not supported type \"%s\"."), TYPE_NAME (type));
+ }
+ printf_unfiltered (" tdesc_record_type (feature, type);\n");
+ printf_unfiltered ("\n");
+ }
+
+ for (ix2 = 0;
+ VEC_iterate (tdesc_reg_p, feature->registers, ix2, reg);
+ ix2++)
+ {
+ printf_unfiltered (" tdesc_create_reg (feature, \"%s\", %ld, %d, ",
+ reg->name, reg->target_regnum, reg->save_restore);
+ if (reg->group)
+ printf_unfiltered ("\"%s\", ", reg->group);
+ else
+ printf_unfiltered ("NULL, ");
+ printf_unfiltered ("%d, \"%s\");\n", reg->bitsize, reg->type);
+ }
+
+ printf_unfiltered ("\n");
+ }
+
+ printf_unfiltered (" tdesc_%s = result;\n", function);
+ printf_unfiltered ("}\n");
+}
+
void
_initialize_target_descriptions (void)
{
Unset the file to read for an XML target description. When unset,\n\
GDB will read the description from the target."),
&tdesc_unset_cmdlist);
+
+ add_cmd ("c-tdesc", class_maintenance, maint_print_c_tdesc_cmd, _("\
+Print the current target description as a C source file."),
+ &maintenanceprintlist);
}
projects / deliverable / binutils-gdb.git / blobdiff