|
- /***************************************************************************
- * Copyright (C) 2013-2015,2019-2020 Synopsys, Inc. *
- * Frank Dols <frank.dols@synopsys.com> *
- * Mischa Jonker <mischa.jonker@synopsys.com> *
- * Anton Kolesov <anton.kolesov@synopsys.com> *
- * Evgeniy Didin <didin@synopsys.com> *
- * *
- * SPDX-License-Identifier: GPL-2.0-or-later *
- ***************************************************************************/
-
- #ifdef HAVE_CONFIG_H
- #include "config.h"
- #endif
-
- #include "arc.h"
-
- /* --------------------------------------------------------------------------
- *
- * ARC targets expose command interface.
- * It can be accessed via GDB through the (gdb) monitor command.
- *
- * ------------------------------------------------------------------------- */
-
-
- static int arc_cmd_jim_get_uint32(struct jim_getopt_info *goi, uint32_t *value)
- {
- jim_wide value_wide;
- JIM_CHECK_RETVAL(jim_getopt_wide(goi, &value_wide));
- *value = (uint32_t)value_wide;
- return JIM_OK;
- }
-
- enum add_reg_types {
- CFG_ADD_REG_TYPE_FLAG,
- CFG_ADD_REG_TYPE_STRUCT,
- };
- /* Add flags register data type */
- enum add_reg_type_flags {
- CFG_ADD_REG_TYPE_FLAGS_NAME,
- CFG_ADD_REG_TYPE_FLAGS_FLAG,
- };
-
- static struct jim_nvp nvp_add_reg_type_flags_opts[] = {
- { .name = "-name", .value = CFG_ADD_REG_TYPE_FLAGS_NAME },
- { .name = "-flag", .value = CFG_ADD_REG_TYPE_FLAGS_FLAG },
- { .name = NULL, .value = -1 }
- };
-
- /* Helper function to check if all field required for register
- * are set up */
- static const char *validate_register(const struct arc_reg_desc * const reg, bool arch_num_set)
- {
- /* Check that required fields are set */
- if (!reg->name)
- return "-name option is required";
- if (!reg->gdb_xml_feature)
- return "-feature option is required";
- if (!arch_num_set)
- return "-num option is required";
- if (reg->is_bcr && reg->is_core)
- return "Register cannot be both -core and -bcr.";
- return NULL;
- }
-
- /* Helper function to read the name of register type or register from
- * configure files */
- static int jim_arc_read_reg_name_field(struct jim_getopt_info *goi,
- const char **name, int *name_len)
- {
- int e = JIM_OK;
-
- if (!goi->argc) {
- Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-name <name> ...");
- return JIM_ERR;
- }
- e = jim_getopt_string(goi, name, name_len);
- return e;
- }
-
- /* Helper function to read bitfields/flags of register type. */
- static int jim_arc_read_reg_type_field(struct jim_getopt_info *goi, const char **field_name, int *field_name_len,
- struct arc_reg_bitfield *bitfields, int cur_field, int type)
- {
- jim_wide start_pos, end_pos;
-
- int e = JIM_OK;
- if ((type == CFG_ADD_REG_TYPE_STRUCT && goi->argc < 3) ||
- (type == CFG_ADD_REG_TYPE_FLAG && goi->argc < 2)) {
- Jim_SetResultFormatted(goi->interp, "Not enough arguments after -flag/-bitfield");
- return JIM_ERR;
- }
-
- e = jim_getopt_string(goi, field_name, field_name_len);
- if (e != JIM_OK)
- return e;
-
- /* read start position of bitfield/flag */
- e = jim_getopt_wide(goi, &start_pos);
- if (e != JIM_OK)
- return e;
-
- end_pos = start_pos;
-
- /* Check if any arguments remain,
- * set bitfields[cur_field].end if flag is multibit */
- if (goi->argc > 0)
- /* Check current argv[0], if it is equal to "-flag",
- * than bitfields[cur_field].end remains start */
- if ((strcmp(Jim_String(goi->argv[0]), "-flag") && type == CFG_ADD_REG_TYPE_FLAG)
- || (type == CFG_ADD_REG_TYPE_STRUCT)) {
- e = jim_getopt_wide(goi, &end_pos);
- if (e != JIM_OK) {
- Jim_SetResultFormatted(goi->interp, "Error reading end position");
- return e;
- }
- }
-
- bitfields[cur_field].bitfield.start = start_pos;
- bitfields[cur_field].bitfield.end = end_pos;
- if ((end_pos != start_pos) || (type == CFG_ADD_REG_TYPE_STRUCT))
- bitfields[cur_field].bitfield.type = REG_TYPE_INT;
- return e;
- }
-
- static int jim_arc_add_reg_type_flags(Jim_Interp *interp, int argc,
- Jim_Obj * const *argv)
- {
- struct jim_getopt_info goi;
- JIM_CHECK_RETVAL(jim_getopt_setup(&goi, interp, argc-1, argv+1));
-
- LOG_DEBUG("-");
-
- struct command_context *ctx;
- struct target *target;
-
- ctx = current_command_context(interp);
- assert(ctx);
- target = get_current_target(ctx);
- if (!target) {
- Jim_SetResultFormatted(goi.interp, "No current target");
- return JIM_ERR;
- }
-
- int e = JIM_OK;
-
- /* Check if the amount of arguments is not zero */
- if (goi.argc <= 0) {
- Jim_SetResultFormatted(goi.interp, "The command has no arguments");
- return JIM_ERR;
- }
-
- /* Estimate number of registers as (argc - 2)/3 as each -flag option has 2
- * arguments while -name is required. */
- unsigned int fields_sz = (goi.argc - 2) / 3;
- unsigned int cur_field = 0;
-
- /* The maximum amount of bitfields is 32 */
- if (fields_sz > 32) {
- Jim_SetResultFormatted(goi.interp, "The amount of bitfields exceed 32");
- return JIM_ERR;
- }
-
- struct arc_reg_data_type *type = calloc(1, sizeof(*type));
- struct reg_data_type_flags *flags = &type->data_type_flags;
- struct reg_data_type_flags_field *fields = calloc(fields_sz, sizeof(*fields));
- type->reg_type_flags_field = fields;
- struct arc_reg_bitfield *bitfields = calloc(fields_sz, sizeof(*bitfields));
- if (!(type && fields && bitfields)) {
- Jim_SetResultFormatted(goi.interp, "Failed to allocate memory.");
- goto fail;
- }
-
- /* Initialize type */
- type->bitfields = bitfields;
- type->data_type.id = type->data_type_id;
- type->data_type.type = REG_TYPE_ARCH_DEFINED;
- type->data_type.type_class = REG_TYPE_CLASS_FLAGS;
- type->data_type.reg_type_flags = flags;
- flags->size = 4; /* For now ARC has only 32-bit registers */
-
- while (goi.argc > 0 && e == JIM_OK) {
- struct jim_nvp *n;
- e = jim_getopt_nvp(&goi, nvp_add_reg_type_flags_opts, &n);
- if (e != JIM_OK) {
- jim_getopt_nvp_unknown(&goi, nvp_add_reg_type_flags_opts, 0);
- continue;
- }
-
- switch (n->value) {
- case CFG_ADD_REG_TYPE_FLAGS_NAME:
- {
- const char *name = NULL;
- int name_len = 0;
-
- e = jim_arc_read_reg_name_field(&goi, &name, &name_len);
- if (e != JIM_OK) {
- Jim_SetResultFormatted(goi.interp, "Unable to read reg name.");
- goto fail;
- }
-
- if (name_len > REG_TYPE_MAX_NAME_LENGTH) {
- Jim_SetResultFormatted(goi.interp, "Reg type name is too big.");
- goto fail;
- }
-
- strncpy((void *)type->data_type.id, name, name_len);
- if (!type->data_type.id) {
- Jim_SetResultFormatted(goi.interp, "Unable to setup reg type name.");
- goto fail;
- }
-
- break;
- }
-
- case CFG_ADD_REG_TYPE_FLAGS_FLAG:
- {
- const char *field_name = NULL;
- int field_name_len = 0;
-
- e = jim_arc_read_reg_type_field(&goi, &field_name, &field_name_len, bitfields,
- cur_field, CFG_ADD_REG_TYPE_FLAG);
- if (e != JIM_OK) {
- Jim_SetResultFormatted(goi.interp, "Unable to add reg_type_flag field.");
- goto fail;
- }
-
- if (field_name_len > REG_TYPE_MAX_NAME_LENGTH) {
- Jim_SetResultFormatted(goi.interp, "Reg type field_name_len is too big.");
- goto fail;
- }
-
- fields[cur_field].name = bitfields[cur_field].name;
- strncpy(bitfields[cur_field].name, field_name, field_name_len);
- if (!fields[cur_field].name) {
- Jim_SetResultFormatted(goi.interp, "Unable to setup field name. ");
- goto fail;
- }
-
- fields[cur_field].bitfield = &(bitfields[cur_field].bitfield);
- if (cur_field > 0)
- fields[cur_field - 1].next = &(fields[cur_field]);
- else
- flags->fields = fields;
-
- cur_field += 1;
- break;
- }
- }
- }
-
- if (!type->data_type.id) {
- Jim_SetResultFormatted(goi.interp, "-name is a required option");
- goto fail;
- }
-
- arc_reg_data_type_add(target, type);
-
- LOG_DEBUG("added flags type {name=%s}", type->data_type.id);
-
- return JIM_OK;
- fail:
- free(type);
- free(fields);
- free(bitfields);
-
- return JIM_ERR;
- }
-
- /* Add struct register data type */
- enum add_reg_type_struct {
- CFG_ADD_REG_TYPE_STRUCT_NAME,
- CFG_ADD_REG_TYPE_STRUCT_BITFIELD,
- };
-
- static struct jim_nvp nvp_add_reg_type_struct_opts[] = {
- { .name = "-name", .value = CFG_ADD_REG_TYPE_STRUCT_NAME },
- { .name = "-bitfield", .value = CFG_ADD_REG_TYPE_STRUCT_BITFIELD },
- { .name = NULL, .value = -1 }
- };
-
- static int jim_arc_set_aux_reg(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
- {
-
- struct command_context *context;
- struct target *target;
- uint32_t regnum;
- uint32_t value;
-
- struct jim_getopt_info goi;
- JIM_CHECK_RETVAL(jim_getopt_setup(&goi, interp, argc-1, argv+1));
-
- if (goi.argc != 2) {
- Jim_SetResultFormatted(goi.interp,
- "usage: %s <aux_reg_num> <aux_reg_value>", Jim_GetString(argv[0], NULL));
- return JIM_ERR;
- }
-
- context = current_command_context(interp);
- assert(context);
-
- target = get_current_target(context);
- if (!target) {
- Jim_SetResultFormatted(goi.interp, "No current target");
- return JIM_ERR;
- }
-
- /* Register number */
- JIM_CHECK_RETVAL(arc_cmd_jim_get_uint32(&goi, ®num));
-
- /* Register value */
- JIM_CHECK_RETVAL(arc_cmd_jim_get_uint32(&goi, &value));
-
- struct arc_common *arc = target_to_arc(target);
- assert(arc);
-
- CHECK_RETVAL(arc_jtag_write_aux_reg_one(&arc->jtag_info, regnum, value));
-
- return ERROR_OK;
- }
-
- static int jim_arc_get_aux_reg(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
- {
- struct command_context *context;
- struct target *target;
- uint32_t regnum;
- uint32_t value;
-
- struct jim_getopt_info goi;
- JIM_CHECK_RETVAL(jim_getopt_setup(&goi, interp, argc-1, argv+1));
-
- if (goi.argc != 1) {
- Jim_SetResultFormatted(goi.interp,
- "usage: %s <aux_reg_num>", Jim_GetString(argv[0], NULL));
- return JIM_ERR;
- }
-
- context = current_command_context(interp);
- assert(context);
-
- target = get_current_target(context);
- if (!target) {
- Jim_SetResultFormatted(goi.interp, "No current target");
- return JIM_ERR;
- }
-
- /* Register number */
- JIM_CHECK_RETVAL(arc_cmd_jim_get_uint32(&goi, ®num));
-
- struct arc_common *arc = target_to_arc(target);
- assert(arc);
-
- CHECK_RETVAL(arc_jtag_read_aux_reg_one(&arc->jtag_info, regnum, &value));
- Jim_SetResultInt(interp, value);
-
- return ERROR_OK;
- }
-
- static int jim_arc_get_core_reg(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
- {
- struct command_context *context;
- struct target *target;
- uint32_t regnum;
- uint32_t value;
-
- struct jim_getopt_info goi;
- JIM_CHECK_RETVAL(jim_getopt_setup(&goi, interp, argc-1, argv+1));
-
- if (goi.argc != 1) {
- Jim_SetResultFormatted(goi.interp,
- "usage: %s <core_reg_num>", Jim_GetString(argv[0], NULL));
- return JIM_ERR;
- }
-
- context = current_command_context(interp);
- assert(context);
-
- target = get_current_target(context);
- if (!target) {
- Jim_SetResultFormatted(goi.interp, "No current target");
- return JIM_ERR;
- }
-
- /* Register number */
- JIM_CHECK_RETVAL(arc_cmd_jim_get_uint32(&goi, ®num));
- if (regnum > CORE_REG_MAX_NUMBER || regnum == ARC_R61 || regnum == ARC_R62) {
- Jim_SetResultFormatted(goi.interp, "Core register number %i "
- "is invalid. Must less then 64 and not 61 and 62.", regnum);
- return JIM_ERR;
- }
-
- struct arc_common *arc = target_to_arc(target);
- assert(arc);
-
- /* Read value */
- CHECK_RETVAL(arc_jtag_read_core_reg_one(&arc->jtag_info, regnum, &value));
- Jim_SetResultInt(interp, value);
-
- return ERROR_OK;
- }
-
- static int jim_arc_set_core_reg(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
- {
- struct command_context *context;
- struct target *target;
- uint32_t regnum;
- uint32_t value;
-
- struct jim_getopt_info goi;
- JIM_CHECK_RETVAL(jim_getopt_setup(&goi, interp, argc-1, argv+1));
-
- if (goi.argc != 2) {
- Jim_SetResultFormatted(goi.interp,
- "usage: %s <core_reg_num> <core_reg_value>", Jim_GetString(argv[0], NULL));
- return JIM_ERR;
- }
-
- context = current_command_context(interp);
- assert(context);
-
- target = get_current_target(context);
- if (!target) {
- Jim_SetResultFormatted(goi.interp, "No current target");
- return JIM_ERR;
- }
-
- /* Register number */
- JIM_CHECK_RETVAL(arc_cmd_jim_get_uint32(&goi, ®num));
- if (regnum > CORE_REG_MAX_NUMBER || regnum == ARC_R61 || regnum == ARC_R62) {
- Jim_SetResultFormatted(goi.interp, "Core register number %i "
- "is invalid. Must less then 64 and not 61 and 62.", regnum);
- return JIM_ERR;
- }
-
- /* Register value */
- JIM_CHECK_RETVAL(arc_cmd_jim_get_uint32(&goi, &value));
-
- struct arc_common *arc = target_to_arc(target);
- assert(arc);
-
- CHECK_RETVAL(arc_jtag_write_core_reg_one(&arc->jtag_info, regnum, value));
-
- return ERROR_OK;
- }
-
- static const struct command_registration arc_jtag_command_group[] = {
- {
- .name = "get-aux-reg",
- .jim_handler = jim_arc_get_aux_reg,
- .mode = COMMAND_EXEC,
- .help = "Get AUX register by number. This command does a "
- "raw JTAG request that bypasses OpenOCD register cache "
- "and thus is unsafe and can have unexpected consequences. "
- "Use at your own risk.",
- .usage = "<regnum>"
- },
- {
- .name = "set-aux-reg",
- .jim_handler = jim_arc_set_aux_reg,
- .mode = COMMAND_EXEC,
- .help = "Set AUX register by number. This command does a "
- "raw JTAG request that bypasses OpenOCD register cache "
- "and thus is unsafe and can have unexpected consequences. "
- "Use at your own risk.",
- .usage = "<regnum> <value>"
- },
- {
- .name = "get-core-reg",
- .jim_handler = jim_arc_get_core_reg,
- .mode = COMMAND_EXEC,
- .help = "Get/Set core register by number. This command does a "
- "raw JTAG request that bypasses OpenOCD register cache "
- "and thus is unsafe and can have unexpected consequences. "
- "Use at your own risk.",
- .usage = "<regnum> [<value>]"
- },
- {
- .name = "set-core-reg",
- .jim_handler = jim_arc_set_core_reg,
- .mode = COMMAND_EXEC,
- .help = "Get/Set core register by number. This command does a "
- "raw JTAG request that bypasses OpenOCD register cache "
- "and thus is unsafe and can have unexpected consequences. "
- "Use at your own risk.",
- .usage = "<regnum> [<value>]"
- },
- COMMAND_REGISTRATION_DONE
- };
-
-
- /* This function supports only bitfields. */
- static int jim_arc_add_reg_type_struct(Jim_Interp *interp, int argc,
- Jim_Obj * const *argv)
- {
- struct jim_getopt_info goi;
- JIM_CHECK_RETVAL(jim_getopt_setup(&goi, interp, argc-1, argv+1));
-
- LOG_DEBUG("-");
-
- struct command_context *ctx;
- struct target *target;
-
- ctx = current_command_context(interp);
- assert(ctx);
- target = get_current_target(ctx);
- if (!target) {
- Jim_SetResultFormatted(goi.interp, "No current target");
- return JIM_ERR;
- }
-
- int e = JIM_OK;
-
- /* Check if the amount of arguments is not zero */
- if (goi.argc <= 0) {
- Jim_SetResultFormatted(goi.interp, "The command has no arguments");
- return JIM_ERR;
- }
-
- /* Estimate number of registers as (argc - 2)/4 as each -bitfield option has 3
- * arguments while -name is required. */
- unsigned int fields_sz = (goi.argc - 2) / 4;
- unsigned int cur_field = 0;
-
- /* The maximum amount of bitfields is 32 */
- if (fields_sz > 32) {
- Jim_SetResultFormatted(goi.interp, "The amount of bitfields exceed 32");
- return JIM_ERR;
- }
-
- struct arc_reg_data_type *type = calloc(1, sizeof(*type));
- struct reg_data_type_struct *struct_type = &type->data_type_struct;
- struct reg_data_type_struct_field *fields = calloc(fields_sz, sizeof(*fields));
- type->reg_type_struct_field = fields;
- struct arc_reg_bitfield *bitfields = calloc(fields_sz, sizeof(*bitfields));
- if (!(type && fields && bitfields)) {
- Jim_SetResultFormatted(goi.interp, "Failed to allocate memory.");
- goto fail;
- }
-
- /* Initialize type */
- type->data_type.id = type->data_type_id;
- type->bitfields = bitfields;
- type->data_type.type = REG_TYPE_ARCH_DEFINED;
- type->data_type.type_class = REG_TYPE_CLASS_STRUCT;
- type->data_type.reg_type_struct = struct_type;
- struct_type->size = 4; /* For now ARC has only 32-bit registers */
-
- while (goi.argc > 0 && e == JIM_OK) {
- struct jim_nvp *n;
- e = jim_getopt_nvp(&goi, nvp_add_reg_type_struct_opts, &n);
- if (e != JIM_OK) {
- jim_getopt_nvp_unknown(&goi, nvp_add_reg_type_struct_opts, 0);
- continue;
- }
-
- switch (n->value) {
- case CFG_ADD_REG_TYPE_STRUCT_NAME:
- {
- const char *name = NULL;
- int name_len = 0;
-
- e = jim_arc_read_reg_name_field(&goi, &name, &name_len);
- if (e != JIM_OK) {
- Jim_SetResultFormatted(goi.interp, "Unable to read reg name.");
- goto fail;
- }
-
- if (name_len > REG_TYPE_MAX_NAME_LENGTH) {
- Jim_SetResultFormatted(goi.interp, "Reg type name is too big.");
- goto fail;
- }
-
- strncpy((void *)type->data_type.id, name, name_len);
- if (!type->data_type.id) {
- Jim_SetResultFormatted(goi.interp, "Unable to setup reg type name.");
- goto fail;
- }
-
- break;
- }
- case CFG_ADD_REG_TYPE_STRUCT_BITFIELD:
- {
- const char *field_name = NULL;
- int field_name_len = 0;
- e = jim_arc_read_reg_type_field(&goi, &field_name, &field_name_len, bitfields,
- cur_field, CFG_ADD_REG_TYPE_STRUCT);
- if (e != JIM_OK) {
- Jim_SetResultFormatted(goi.interp, "Unable to add reg_type_struct field.");
- goto fail;
- }
-
- if (field_name_len > REG_TYPE_MAX_NAME_LENGTH) {
- Jim_SetResultFormatted(goi.interp, "Reg type field_name_len is too big.");
- goto fail;
- }
-
- fields[cur_field].name = bitfields[cur_field].name;
- strncpy(bitfields[cur_field].name, field_name, field_name_len);
- if (!fields[cur_field].name) {
- Jim_SetResultFormatted(goi.interp, "Unable to setup field name. ");
- goto fail;
- }
-
- fields[cur_field].bitfield = &(bitfields[cur_field].bitfield);
- fields[cur_field].use_bitfields = true;
- if (cur_field > 0)
- fields[cur_field - 1].next = &(fields[cur_field]);
- else
- struct_type->fields = fields;
-
- cur_field += 1;
-
- break;
- }
- }
- }
-
- if (!type->data_type.id) {
- Jim_SetResultFormatted(goi.interp, "-name is a required option");
- goto fail;
- }
-
- arc_reg_data_type_add(target, type);
- LOG_DEBUG("added struct type {name=%s}", type->data_type.id);
- return JIM_OK;
-
- fail:
- free(type);
- free(fields);
- free(bitfields);
-
- return JIM_ERR;
- }
-
- /* Add register */
- enum opts_add_reg {
- CFG_ADD_REG_NAME,
- CFG_ADD_REG_ARCH_NUM,
- CFG_ADD_REG_IS_CORE,
- CFG_ADD_REG_IS_BCR,
- CFG_ADD_REG_GDB_FEATURE,
- CFG_ADD_REG_TYPE,
- CFG_ADD_REG_GENERAL,
- };
-
- static struct jim_nvp opts_nvp_add_reg[] = {
- { .name = "-name", .value = CFG_ADD_REG_NAME },
- { .name = "-num", .value = CFG_ADD_REG_ARCH_NUM },
- { .name = "-core", .value = CFG_ADD_REG_IS_CORE },
- { .name = "-bcr", .value = CFG_ADD_REG_IS_BCR },
- { .name = "-feature", .value = CFG_ADD_REG_GDB_FEATURE },
- { .name = "-type", .value = CFG_ADD_REG_TYPE },
- { .name = "-g", .value = CFG_ADD_REG_GENERAL },
- { .name = NULL, .value = -1 }
- };
-
- void free_reg_desc(struct arc_reg_desc *r)
- {
- free(r->name);
- free(r->gdb_xml_feature);
- free(r);
- }
-
- static int jim_arc_add_reg(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
- {
- struct jim_getopt_info goi;
- JIM_CHECK_RETVAL(jim_getopt_setup(&goi, interp, argc-1, argv+1));
-
- struct arc_reg_desc *reg = calloc(1, sizeof(*reg));
- if (!reg) {
- Jim_SetResultFormatted(goi.interp, "Failed to allocate memory.");
- return JIM_ERR;
- }
-
- /* There is no architecture number that we could treat as invalid, so
- * separate variable required to ensure that arch num has been set. */
- bool arch_num_set = false;
- const char *type_name = "int"; /* Default type */
- int type_name_len = strlen(type_name);
- int e = ERROR_OK;
-
- /* At least we need to specify 4 parameters: name, number and gdb_feature,
- * which means there should be 6 arguments. Also there can be additional parameters
- * "-type <type>", "-g" and "-core" or "-bcr" which makes maximum 10 parameters. */
- if (goi.argc < 6 || goi.argc > 10) {
- free_reg_desc(reg);
- Jim_SetResultFormatted(goi.interp,
- "Should be at least 6 arguments and not greater than 10: "
- " -name <name> -num <num> -feature <gdb_feature> "
- " [-type <type_name>] [-core|-bcr] [-g].");
- return JIM_ERR;
- }
-
- /* Parse options. */
- while (goi.argc > 0) {
- struct jim_nvp *n;
- e = jim_getopt_nvp(&goi, opts_nvp_add_reg, &n);
- if (e != JIM_OK) {
- jim_getopt_nvp_unknown(&goi, opts_nvp_add_reg, 0);
- free_reg_desc(reg);
- return e;
- }
-
- switch (n->value) {
- case CFG_ADD_REG_NAME:
- {
- const char *reg_name = NULL;
- int reg_name_len = 0;
-
- e = jim_arc_read_reg_name_field(&goi, ®_name, ®_name_len);
- if (e != JIM_OK) {
- Jim_SetResultFormatted(goi.interp, "Unable to read register name.");
- free_reg_desc(reg);
- return e;
- }
-
- reg->name = strndup(reg_name, reg_name_len);
- break;
- }
- case CFG_ADD_REG_IS_CORE:
- reg->is_core = true;
- break;
- case CFG_ADD_REG_IS_BCR:
- reg->is_bcr = true;
- break;
- case CFG_ADD_REG_ARCH_NUM:
- {
- jim_wide archnum;
-
- if (!goi.argc) {
- free_reg_desc(reg);
- Jim_WrongNumArgs(interp, goi.argc, goi.argv, "-num <int> ...");
- return JIM_ERR;
- }
-
- e = jim_getopt_wide(&goi, &archnum);
- if (e != JIM_OK) {
- free_reg_desc(reg);
- return e;
- }
-
- reg->arch_num = archnum;
- arch_num_set = true;
- break;
- }
- case CFG_ADD_REG_GDB_FEATURE:
- {
- const char *feature = NULL;
- int feature_len = 0;
-
- e = jim_arc_read_reg_name_field(&goi, &feature, &feature_len);
- if (e != JIM_OK) {
- Jim_SetResultFormatted(goi.interp, "Unable to read gdb_feature.");
- free_reg_desc(reg);
- return e;
- }
-
- reg->gdb_xml_feature = strndup(feature, feature_len);
- break;
- }
- case CFG_ADD_REG_TYPE:
- e = jim_arc_read_reg_name_field(&goi, &type_name, &type_name_len);
- if (e != JIM_OK) {
- Jim_SetResultFormatted(goi.interp, "Unable to read register type.");
- free_reg_desc(reg);
- return e;
- }
-
- break;
- case CFG_ADD_REG_GENERAL:
- reg->is_general = true;
- break;
- default:
- LOG_DEBUG("Error: Unknown parameter");
- free_reg_desc(reg);
- return JIM_ERR;
- }
- }
-
- /* Check that required fields are set */
- const char * const errmsg = validate_register(reg, arch_num_set);
- if (errmsg) {
- Jim_SetResultFormatted(goi.interp, errmsg);
- free_reg_desc(reg);
- return JIM_ERR;
- }
-
- /* Add new register */
- struct command_context *ctx;
- struct target *target;
-
- ctx = current_command_context(interp);
- assert(ctx);
- target = get_current_target(ctx);
- if (!target) {
- Jim_SetResultFormatted(goi.interp, "No current target");
- free_reg_desc(reg);
- return JIM_ERR;
- }
-
- reg->target = target;
-
- e = arc_reg_add(target, reg, type_name, type_name_len);
- if (e == ERROR_ARC_REGTYPE_NOT_FOUND) {
- Jim_SetResultFormatted(goi.interp,
- "Cannot find type `%s' for register `%s'.",
- type_name, reg->name);
- free_reg_desc(reg);
- return JIM_ERR;
- }
-
- return e;
- }
-
- /* arc set-reg-exists ($reg_name)+
- * Accepts any amount of register names - will set them as existing in a loop.*/
- COMMAND_HANDLER(arc_set_reg_exists)
- {
- struct target * const target = get_current_target(CMD_CTX);
- if (!target) {
- command_print(CMD, "Unable to get current target.");
- return JIM_ERR;
- }
-
- if (!CMD_ARGC) {
- command_print(CMD, "At least one register name must be specified.");
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- for (unsigned int i = 0; i < CMD_ARGC; i++) {
- const char * const reg_name = CMD_ARGV[i];
- struct reg * const r = arc_reg_get_by_name(target->reg_cache, reg_name, true);
-
- if (!r) {
- command_print(CMD, "Register `%s' is not found.", reg_name);
- return ERROR_COMMAND_ARGUMENT_INVALID;
- }
-
- r->exist = true;
- }
-
- return JIM_OK;
- }
-
- /* arc reg-field ($reg_name) ($reg_field)
- * Reads struct type register field */
- static int jim_arc_get_reg_field(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
- {
- struct jim_getopt_info goi;
- const char *reg_name, *field_name;
- uint32_t value;
- int retval;
-
- JIM_CHECK_RETVAL(jim_getopt_setup(&goi, interp, argc-1, argv+1));
-
- LOG_DEBUG("Reading register field");
- if (goi.argc != 2) {
- if (!goi.argc)
- Jim_WrongNumArgs(interp, goi.argc, goi.argv, "<regname> <fieldname>");
- else if (goi.argc == 1)
- Jim_WrongNumArgs(interp, goi.argc, goi.argv, "<fieldname>");
- else
- Jim_WrongNumArgs(interp, goi.argc, goi.argv, "<regname> <fieldname>");
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- JIM_CHECK_RETVAL(jim_getopt_string(&goi, ®_name, NULL));
- JIM_CHECK_RETVAL(jim_getopt_string(&goi, &field_name, NULL));
- assert(reg_name);
- assert(field_name);
-
- struct command_context * const ctx = current_command_context(interp);
- assert(ctx);
- struct target * const target = get_current_target(ctx);
- if (!target) {
- Jim_SetResultFormatted(goi.interp, "No current target");
- return JIM_ERR;
- }
-
- retval = arc_reg_get_field(target, reg_name, field_name, &value);
-
- switch (retval) {
- case ERROR_OK:
- break;
- case ERROR_ARC_REGISTER_NOT_FOUND:
- Jim_SetResultFormatted(goi.interp,
- "Register `%s' has not been found.", reg_name);
- return ERROR_COMMAND_ARGUMENT_INVALID;
- case ERROR_ARC_REGISTER_IS_NOT_STRUCT:
- Jim_SetResultFormatted(goi.interp,
- "Register `%s' must have 'struct' type.", reg_name);
- return ERROR_COMMAND_ARGUMENT_INVALID;
- case ERROR_ARC_REGISTER_FIELD_NOT_FOUND:
- Jim_SetResultFormatted(goi.interp,
- "Field `%s' has not been found in register `%s'.",
- field_name, reg_name);
- return ERROR_COMMAND_ARGUMENT_INVALID;
- case ERROR_ARC_FIELD_IS_NOT_BITFIELD:
- Jim_SetResultFormatted(goi.interp,
- "Field `%s' is not a 'bitfield' field in a structure.",
- field_name);
- return ERROR_COMMAND_ARGUMENT_INVALID;
- default:
- /* Pass through other errors. */
- return retval;
- }
-
- Jim_SetResultInt(interp, value);
-
- return JIM_OK;
- }
-
- COMMAND_HANDLER(arc_l1_cache_disable_auto_cmd)
- {
- bool value;
- int retval = 0;
- struct arc_common *arc = target_to_arc(get_current_target(CMD_CTX));
- retval = CALL_COMMAND_HANDLER(handle_command_parse_bool,
- &value, "target has caches enabled");
- arc->has_l2cache = value;
- arc->has_dcache = value;
- arc->has_icache = value;
- return retval;
- }
-
- COMMAND_HANDLER(arc_l2_cache_disable_auto_cmd)
- {
- struct arc_common *arc = target_to_arc(get_current_target(CMD_CTX));
- return CALL_COMMAND_HANDLER(handle_command_parse_bool,
- &arc->has_l2cache, "target has l2 cache enabled");
- }
-
- static int jim_handle_actionpoints_num(Jim_Interp *interp, int argc,
- Jim_Obj * const *argv)
- {
- struct jim_getopt_info goi;
- jim_getopt_setup(&goi, interp, argc - 1, argv + 1);
-
- LOG_DEBUG("-");
-
- if (goi.argc >= 2) {
- Jim_WrongNumArgs(interp, goi.argc, goi.argv, "[<unsigned integer>]");
- return JIM_ERR;
- }
-
- struct command_context *context = current_command_context(interp);
- assert(context);
-
- struct target *target = get_current_target(context);
-
- if (!target) {
- Jim_SetResultFormatted(goi.interp, "No current target");
- return JIM_ERR;
- }
-
- struct arc_common *arc = target_to_arc(target);
- /* It is not possible to pass &arc->actionpoints_num directly to
- * handle_command_parse_uint, because this value should be valid during
- * "actionpoint reset, initiated by arc_set_actionpoints_num. */
- uint32_t ap_num = arc->actionpoints_num;
-
- if (goi.argc == 1) {
- JIM_CHECK_RETVAL(arc_cmd_jim_get_uint32(&goi, &ap_num));
- int e = arc_set_actionpoints_num(target, ap_num);
- if (e != ERROR_OK) {
- Jim_SetResultFormatted(goi.interp,
- "Failed to set number of actionpoints");
- return JIM_ERR;
- }
- }
-
- Jim_SetResultInt(interp, ap_num);
-
- return JIM_OK;
- }
-
- /* ----- Exported target commands ------------------------------------------ */
-
- const struct command_registration arc_l2_cache_group_handlers[] = {
- {
- .name = "auto",
- .handler = arc_l2_cache_disable_auto_cmd,
- .mode = COMMAND_ANY,
- .usage = "(1|0)",
- .help = "Disable or enable L2",
- },
- COMMAND_REGISTRATION_DONE
- };
-
- const struct command_registration arc_cache_group_handlers[] = {
- {
- .name = "auto",
- .handler = arc_l1_cache_disable_auto_cmd,
- .mode = COMMAND_ANY,
- .help = "Disable or enable L1",
- .usage = "(1|0)",
- },
- {
- .name = "l2",
- .mode = COMMAND_ANY,
- .help = "L2 cache command group",
- .usage = "",
- .chain = arc_l2_cache_group_handlers,
- },
- COMMAND_REGISTRATION_DONE
- };
-
-
- static const struct command_registration arc_core_command_handlers[] = {
- {
- .name = "add-reg-type-flags",
- .jim_handler = jim_arc_add_reg_type_flags,
- .mode = COMMAND_CONFIG,
- .usage = "-name <string> -flag <name> <position> "
- "[-flag <name> <position>]...",
- .help = "Add new 'flags' register data type. Only single bit flags "
- "are supported. Type name is global. Bitsize of register is fixed "
- "at 32 bits.",
- },
- {
- .name = "add-reg-type-struct",
- .jim_handler = jim_arc_add_reg_type_struct,
- .mode = COMMAND_CONFIG,
- .usage = "-name <string> -bitfield <name> <start> <end> "
- "[-bitfield <name> <start> <end>]...",
- .help = "Add new 'struct' register data type. Only bit-fields are "
- "supported so far, which means that for each bitfield start and end "
- "position bits must be specified. GDB also support type-fields, "
- "where common type can be used instead. Type name is global. Bitsize of "
- "register is fixed at 32 bits.",
- },
- {
- .name = "add-reg",
- .jim_handler = jim_arc_add_reg,
- .mode = COMMAND_CONFIG,
- .usage = "-name <string> -num <int> -feature <string> [-gdbnum <int>] "
- "[-core|-bcr] [-type <type_name>] [-g]",
- .help = "Add new register. Name, architectural number and feature name "
- "are required options. GDB regnum will default to previous register "
- "(gdbnum + 1) and shouldn't be specified in most cases. Type "
- "defaults to default GDB 'int'.",
- },
- {
- .name = "set-reg-exists",
- .handler = arc_set_reg_exists,
- .mode = COMMAND_ANY,
- .usage = "<register-name> [<register-name>]...",
- .help = "Set that register exists. Accepts multiple register names as "
- "arguments.",
- },
- {
- .name = "get-reg-field",
- .jim_handler = jim_arc_get_reg_field,
- .mode = COMMAND_ANY,
- .usage = "<regname> <field_name>",
- .help = "Returns value of field in a register with 'struct' type.",
- },
- {
- .name = "jtag",
- .mode = COMMAND_ANY,
- .help = "ARC JTAG specific commands",
- .usage = "",
- .chain = arc_jtag_command_group,
- },
- {
- .name = "cache",
- .mode = COMMAND_ANY,
- .help = "cache command group",
- .usage = "",
- .chain = arc_cache_group_handlers,
- },
- {
- .name = "num-actionpoints",
- .jim_handler = jim_handle_actionpoints_num,
- .mode = COMMAND_ANY,
- .usage = "[<unsigned integer>]",
- .help = "Prints or sets amount of actionpoints in the processor.",
- },
- COMMAND_REGISTRATION_DONE
- };
-
- const struct command_registration arc_monitor_command_handlers[] = {
- {
- .name = "arc",
- .mode = COMMAND_ANY,
- .help = "ARC monitor command group",
- .usage = "",
- .chain = arc_core_command_handlers,
- },
- COMMAND_REGISTRATION_DONE
- };
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