+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* Copyright (C) 2008 by Hongtao Zheng *
* hontor@126.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 *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * 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., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "target_type.h"
#include "register.h"
#include "arm_opcodes.h"
-
+#include "arm_semihosting.h"
/*
* NOTE: this holds code that's used with multiple ARM9 processors:
#define _DEBUG_INSTRUCTION_EXECUTION_
#endif
-enum arm9tdmi_vector_bit
-{
+enum arm9tdmi_vector_bit {
ARM9TDMI_RESET_VECTOR = 0x01,
ARM9TDMI_UNDEF_VECTOR = 0x02,
ARM9TDMI_SWI_VECTOR = 0x04,
/* only check the debug reason if we don't know it already */
if ((target->debug_reason != DBG_REASON_DBGRQ)
- && (target->debug_reason != DBG_REASON_SINGLESTEP))
- {
+ && (target->debug_reason != DBG_REASON_SINGLESTEP)) {
struct scan_field fields[3];
uint8_t databus[4];
uint8_t instructionbus[4];
fields[2].out_value = NULL;
fields[2].in_value = instructionbus;
- if ((retval = arm_jtag_scann(&arm7_9->jtag_info, 0x1, TAP_DRPAUSE)) != ERROR_OK)
- {
+ retval = arm_jtag_scann(&arm7_9->jtag_info, 0x1, TAP_DRPAUSE);
+ if (retval != ERROR_OK)
return retval;
- }
- retval = arm_jtag_set_instr(&arm7_9->jtag_info, arm7_9->jtag_info.intest_instr, NULL, TAP_DRPAUSE);
+ retval = arm_jtag_set_instr(arm7_9->jtag_info.tap, arm7_9->jtag_info.intest_instr, NULL, TAP_DRPAUSE);
if (retval != ERROR_OK)
return retval;
jtag_add_dr_scan(arm7_9->jtag_info.tap, 3, fields, TAP_DRPAUSE);
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- {
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
return retval;
- }
fields[0].in_value = NULL;
fields[0].out_value = databus;
if (sysspeed)
buf_set_u32(&sysspeed_buf, 2, 1, 1);
- if ((retval = arm_jtag_scann(jtag_info, 0x1, TAP_DRPAUSE)) != ERROR_OK)
- {
+ retval = arm_jtag_scann(jtag_info, 0x1, TAP_DRPAUSE);
+ if (retval != ERROR_OK)
return retval;
- }
- retval = arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL, TAP_DRPAUSE);
+ retval = arm_jtag_set_instr(jtag_info->tap, jtag_info->intest_instr, NULL, TAP_DRPAUSE);
if (retval != ERROR_OK)
return retval;
fields[2].out_value = instr_buf;
fields[2].in_value = NULL;
- if (in)
- {
+ if (in) {
fields[0].in_value = (uint8_t *)in;
jtag_add_dr_scan(jtag_info->tap, 3, fields, TAP_DRPAUSE);
jtag_add_callback(arm_le_to_h_u32, (jtag_callback_data_t)in);
- }
- else
- {
+ } else
jtag_add_dr_scan(jtag_info->tap, 3, fields, TAP_DRPAUSE);
- }
jtag_add_runtest(0, TAP_DRPAUSE);
#ifdef _DEBUG_INSTRUCTION_EXECUTION_
{
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- {
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
return retval;
- }
if (in)
- {
LOG_DEBUG("instr: 0x%8.8x, out: 0x%8.8x, in: 0x%8.8x", instr, out, *in);
- }
else
LOG_DEBUG("instr: 0x%8.8x, out: 0x%8.8x", instr, out);
}
/* just read data (instruction and data-out = don't care) */
int arm9tdmi_clock_data_in(struct arm_jtag *jtag_info, uint32_t *in)
{
- int retval = ERROR_OK;;
+ int retval = ERROR_OK;
struct scan_field fields[3];
- if ((retval = arm_jtag_scann(jtag_info, 0x1, TAP_DRPAUSE)) != ERROR_OK)
- {
+ retval = arm_jtag_scann(jtag_info, 0x1, TAP_DRPAUSE);
+ if (retval != ERROR_OK)
return retval;
- }
- retval = arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL, TAP_DRPAUSE);
+ retval = arm_jtag_set_instr(jtag_info->tap, jtag_info->intest_instr, NULL, TAP_DRPAUSE);
if (retval != ERROR_OK)
return retval;
#ifdef _DEBUG_INSTRUCTION_EXECUTION_
{
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- {
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
return retval;
- }
if (in)
- {
LOG_DEBUG("in: 0x%8.8x", *in);
- }
else
- {
LOG_ERROR("BUG: called with in == NULL");
- }
}
#endif
return ERROR_OK;
}
-static int arm9endianness(jtag_callback_data_t arg,
- jtag_callback_data_t size, jtag_callback_data_t be,
- jtag_callback_data_t captured)
-{
- uint8_t *in = (uint8_t *)arg;
-
- arm_endianness((uint8_t *)captured, in, (int)size, (int)be, 0);
- return ERROR_OK;
-}
-
/* clock the target, and read the databus
* the *in pointer points to a buffer where elements of 'size' bytes
* are stored in big (be == 1) or little (be == 0) endianness
void *in, int size, int be)
{
int retval = ERROR_OK;
- struct scan_field fields[3];
+ struct scan_field fields[2];
- if ((retval = arm_jtag_scann(jtag_info, 0x1, TAP_DRPAUSE)) != ERROR_OK)
- {
+ retval = arm_jtag_scann(jtag_info, 0x1, TAP_DRPAUSE);
+ if (retval != ERROR_OK)
return retval;
- }
- retval = arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL, TAP_DRPAUSE);
+ retval = arm_jtag_set_instr(jtag_info->tap, jtag_info->intest_instr, NULL, TAP_DRPAUSE);
if (retval != ERROR_OK)
return retval;
- fields[0].num_bits = 32;
- fields[0].out_value = NULL;
- fields[0].in_value = in;
+ if (size == 4) {
+ fields[0].num_bits = 32;
+ fields[0].out_value = NULL;
+ fields[0].in_value = in;
- fields[1].num_bits = 3;
- fields[1].out_value = NULL;
- fields[1].in_value = NULL;
+ fields[1].num_bits = 3 + 32;
+ fields[1].out_value = NULL;
+ fields[1].in_value = NULL;
+ } else {
+ /* Discard irrelevant bits of the scan, making sure we don't write more
+ * than size bytes to in */
+ fields[0].num_bits = size * 8;
+ fields[0].out_value = NULL;
+ fields[0].in_value = in;
- fields[2].num_bits = 32;
- fields[2].out_value = NULL;
- fields[2].in_value = NULL;
+ fields[1].num_bits = 3 + 32 + 32 - size * 8;
+ fields[1].out_value = NULL;
+ fields[1].in_value = NULL;
+ }
- jtag_add_dr_scan(jtag_info->tap, 3, fields, TAP_DRPAUSE);
+ jtag_add_dr_scan(jtag_info->tap, 2, fields, TAP_DRPAUSE);
- jtag_add_callback4(arm9endianness,
+ jtag_add_callback4(arm7_9_endianness_callback,
(jtag_callback_data_t)in,
(jtag_callback_data_t)size,
(jtag_callback_data_t)be,
- (jtag_callback_data_t)in);
+ (jtag_callback_data_t)0);
jtag_add_runtest(0, TAP_DRPAUSE);
#ifdef _DEBUG_INSTRUCTION_EXECUTION_
{
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- {
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
return retval;
- }
if (in)
- {
- LOG_DEBUG("in: 0x%8.8x", *(uint32_t*)in);
- }
+ LOG_DEBUG("in: 0x%8.8x", *(uint32_t *)in);
else
- {
LOG_ERROR("BUG: called with in == NULL");
- }
}
#endif
/* NOP fetched, BX in Execute (1) */
arm9tdmi_clock_out(jtag_info, ARMV4_5_T_NOP, 0, NULL, 0);
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- {
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
return;
- }
/* fix program counter:
* MOV r0, r15 was the 5th instruction (+8)
}
void arm9tdmi_read_core_regs(struct target *target,
- uint32_t mask, uint32_t* core_regs[16])
+ uint32_t mask, uint32_t *core_regs[16])
{
int i;
struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
/* fetch NOP, STM in EXECUTE stage (1st cycle) */
arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 0);
- for (i = 0; i <= 15; i++)
- {
+ for (i = 0; i <= 15; i++) {
if (mask & (1 << i))
/* nothing fetched, STM in MEMORY (i'th cycle) */
arm9tdmi_clock_data_in(jtag_info, core_regs[i]);
}
static void arm9tdmi_read_core_regs_target_buffer(struct target *target,
- uint32_t mask, void* buffer, int size)
+ uint32_t mask, void *buffer, int size)
{
int i;
struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
/* fetch NOP, STM in EXECUTE stage (1st cycle) */
arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 0);
- for (i = 0; i <= 15; i++)
- {
+ for (i = 0; i <= 15; i++) {
if (mask & (1 << i))
/* nothing fetched, STM in MEMORY (i'th cycle) */
- switch (size)
- {
+ switch (size) {
case 4:
arm9tdmi_clock_data_in_endianness(jtag_info, buf_u32++, 4, be);
break;
arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 0);
/* rot == 4 writes flags, which takes only one cycle */
- if (rot != 4)
- {
+ if (rot != 4) {
/* nothing fetched, MSR in EXECUTE (2) */
arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 0);
/* nothing fetched, MSR in EXECUTE (3) */
/* fetch NOP, LDM in EXECUTE stage (1st cycle) */
arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 0);
- for (i = 0; i <= 15; i++)
- {
+ for (i = 0; i <= 15; i++) {
if (mask & (1 << i))
/* nothing fetched, LDM still in EXECUTE (1 + i cycle) */
arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, core_regs[i], NULL, 0);
{
struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
- if (arm7_9->has_single_step)
- {
+ if (arm7_9->has_single_step) {
buf_set_u32(arm7_9->eice_cache->reg_list[EICE_DBG_CTRL].value, 3, 1, 1);
embeddedice_store_reg(&arm7_9->eice_cache->reg_list[EICE_DBG_CTRL]);
- }
- else
- {
+ } else
arm7_9_enable_eice_step(target, next_pc);
- }
}
void arm9tdmi_disable_single_step(struct target *target)
{
struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
- if (arm7_9->has_single_step)
- {
+ if (arm7_9->has_single_step) {
buf_set_u32(arm7_9->eice_cache->reg_list[EICE_DBG_CTRL].value, 3, 1, 0);
embeddedice_store_reg(&arm7_9->eice_cache->reg_list[EICE_DBG_CTRL]);
- }
- else
- {
+ } else
arm7_9_disable_eice_step(target);
- }
}
static void arm9tdmi_build_reg_cache(struct target *target)
struct target *target)
{
arm9tdmi_build_reg_cache(target);
+ arm_semihosting_init(target);
return ERROR_OK;
}
arm7_9->enable_single_step = arm9tdmi_enable_single_step;
arm7_9->disable_single_step = arm9tdmi_disable_single_step;
+ arm7_9->write_memory = arm7_9_write_memory;
+ arm7_9->bulk_write_memory = arm7_9_bulk_write_memory;
+
arm7_9->post_debug_entry = NULL;
arm7_9->pre_restore_context = NULL;
static int arm9tdmi_target_create(struct target *target, Jim_Interp *interp)
{
- struct arm7_9_common *arm7_9 = calloc(1,sizeof(struct arm7_9_common));
+ struct arm7_9_common *arm7_9 = calloc(1, sizeof(struct arm7_9_common));
arm9tdmi_init_arch_info(target, arm7_9, target->tap);
- arm7_9->arm.is_armv4 = true;
+ arm7_9->arm.arch = ARM_ARCH_V4;
return ERROR_OK;
}
+void arm9tdmi_deinit_target(struct target *target)
+{
+ struct arm *arm = target_to_arm(target);
+ struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
+
+ arm7_9_deinit(target);
+ arm_free_reg_cache(arm);
+ free(arm7_9);
+}
+
COMMAND_HANDLER(handle_arm9tdmi_catch_vectors_command)
{
struct target *target = get_current_target(CMD_CTX);
struct reg *vector_catch;
uint32_t vector_catch_value;
- if (!target_was_examined(target))
- {
+ if (!target_was_examined(target)) {
LOG_ERROR("Target not examined yet");
return ERROR_FAIL;
}
/* it's uncommon, but some ARM7 chips can support this */
if (arm7_9->common_magic != ARM7_9_COMMON_MAGIC
|| !arm7_9->has_vector_catch) {
- command_print(CMD_CTX, "target doesn't have EmbeddedICE "
+ command_print(CMD, "target doesn't have EmbeddedICE "
"with vector_catch");
return ERROR_TARGET_INVALID;
}
/* get the current setting */
vector_catch_value = buf_get_u32(vector_catch->value, 0, 8);
- if (CMD_ARGC > 0)
- {
+ if (CMD_ARGC > 0) {
vector_catch_value = 0x0;
if (strcmp(CMD_ARGV[0], "all") == 0)
- {
vector_catch_value = 0xdf;
- }
- else if (strcmp(CMD_ARGV[0], "none") == 0)
- {
+ else if (strcmp(CMD_ARGV[0], "none") == 0) {
/* do nothing */
- }
- else
- {
- for (unsigned i = 0; i < CMD_ARGC; i++)
- {
+ } else {
+ for (unsigned i = 0; i < CMD_ARGC; i++) {
/* go through list of vectors */
unsigned j;
- for (j = 0; arm9tdmi_vectors[j].name; j++)
- {
- if (strcmp(CMD_ARGV[i], arm9tdmi_vectors[j].name) == 0)
- {
+ for (j = 0; arm9tdmi_vectors[j].name; j++) {
+ if (strcmp(CMD_ARGV[i], arm9tdmi_vectors[j].name) == 0) {
vector_catch_value |= arm9tdmi_vectors[j].value;
break;
}
}
/* complain if vector wasn't found */
- if (!arm9tdmi_vectors[j].name)
- {
- command_print(CMD_CTX, "vector '%s' not found, leaving current setting unchanged", CMD_ARGV[i]);
+ if (!arm9tdmi_vectors[j].name) {
+ command_print(CMD, "vector '%s' not found, leaving current setting unchanged", CMD_ARGV[i]);
/* reread current setting */
vector_catch_value = buf_get_u32(
vector_catch->value,
0, 8);
-
break;
}
}
/* output current settings */
for (unsigned i = 0; arm9tdmi_vectors[i].name; i++) {
- command_print(CMD_CTX, "%s: %s", arm9tdmi_vectors[i].name,
+ command_print(CMD, "%s: %s", arm9tdmi_vectors[i].name,
(vector_catch_value & arm9tdmi_vectors[i].value)
? "catch" : "don't catch");
}
};
/** Holds methods for ARM9TDMI targets. */
-struct target_type arm9tdmi_target =
-{
+struct target_type arm9tdmi_target = {
.name = "arm9tdmi",
.poll = arm7_9_poll,
.deassert_reset = arm7_9_deassert_reset,
.soft_reset_halt = arm7_9_soft_reset_halt,
+ .get_gdb_arch = arm_get_gdb_arch,
.get_gdb_reg_list = arm_get_gdb_reg_list,
.read_memory = arm7_9_read_memory,
- .write_memory = arm7_9_write_memory,
- .bulk_write_memory = arm7_9_bulk_write_memory,
+ .write_memory = arm7_9_write_memory_opt,
.checksum_memory = arm_checksum_memory,
.blank_check_memory = arm_blank_check_memory,
.commands = arm9tdmi_command_handlers,
.target_create = arm9tdmi_target_create,
.init_target = arm9tdmi_init_target,
+ .deinit_target = arm9tdmi_deinit_target,
.examine = arm7_9_examine,
.check_reset = arm7_9_check_reset,
};
projects / fw / openocd / blobdiff