char* armv7m_mode_strings[] =
{
- "Thread", "Thread (User)", "Handler",
+ "Thread", "Thread (User)", "Handler",
};
char* armv7m_exception_strings[] =
};
#endif
-armv7m_core_reg_t armv7m_core_reg_list_arch_info[] =
+armv7m_core_reg_t armv7m_core_reg_list_arch_info[] =
{
/* CORE_GP are accesible using the core debug registers */
{0, ARMV7M_REGISTER_CORE_GP, ARMV7M_MODE_ANY, NULL, NULL},
{11, ARMV7M_REGISTER_CORE_GP, ARMV7M_MODE_ANY, NULL, NULL},
{12, ARMV7M_REGISTER_CORE_GP, ARMV7M_MODE_ANY, NULL, NULL},
{13, ARMV7M_REGISTER_CORE_GP, ARMV7M_MODE_ANY, NULL, NULL},
- {14, ARMV7M_REGISTER_CORE_GP, ARMV7M_MODE_ANY, NULL, NULL},
+ {14, ARMV7M_REGISTER_CORE_GP, ARMV7M_MODE_ANY, NULL, NULL},
{15, ARMV7M_REGISTER_CORE_GP, ARMV7M_MODE_ANY, NULL, NULL},
{16, ARMV7M_REGISTER_CORE_GP, ARMV7M_MODE_ANY, NULL, NULL}, /* xPSR */
int armv7m_restore_context(target_t *target)
{
int i;
-
+
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
if (armv7m->pre_restore_context)
armv7m->pre_restore_context(target);
-
+
for (i = ARMV7NUMCOREREGS-1; i >= 0; i--)
{
if (armv7m->core_cache->reg_list[i].dirty)
armv7m->write_core_reg(target, i);
}
}
-
+
if (armv7m->post_restore_context)
armv7m->post_restore_context(target);
-
- return ERROR_OK;
+
+ return ERROR_OK;
}
/* Core state functions */
char *armv7m_exception_string(int number)
{
static char enamebuf[32];
-
+
if ((number < 0) | (number > 511))
return "Invalid exception";
if (number < 16)
armv7m_core_reg_t *armv7m_reg = reg->arch_info;
target_t *target = armv7m_reg->target;
armv7m_common_t *armv7m_target = target->arch_info;
-
+
if (target->state != TARGET_HALTED)
{
return ERROR_TARGET_NOT_HALTED;
}
retval = armv7m_target->read_core_reg(target, armv7m_reg->num);
-
+
return retval;
}
armv7m_core_reg_t *armv7m_reg = reg->arch_info;
target_t *target = armv7m_reg->target;
u32 value = buf_get_u32(buf, 0, 32);
-
+
if (target->state != TARGET_HALTED)
{
return ERROR_TARGET_NOT_HALTED;
}
-
+
buf_set_u32(reg->value, 0, 32, value);
reg->dirty = 1;
reg->valid = 1;
u32 reg_value;
int retval;
armv7m_core_reg_t * armv7m_core_reg;
-
+
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
-
+
if ((num < 0) || (num >= ARMV7NUMCOREREGS))
return ERROR_INVALID_ARGUMENTS;
buf_set_u32(armv7m->core_cache->reg_list[num].value, 0, 32, reg_value);
armv7m->core_cache->reg_list[num].valid = 1;
armv7m->core_cache->reg_list[num].dirty = 0;
-
- return ERROR_OK;
+
+ return ERROR_OK;
}
int armv7m_write_core_reg(struct target_s *target, int num)
int retval;
u32 reg_value;
armv7m_core_reg_t *armv7m_core_reg;
-
+
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
if ((num < 0) || (num >= ARMV7NUMCOREREGS))
return ERROR_INVALID_ARGUMENTS;
-
+
reg_value = buf_get_u32(armv7m->core_cache->reg_list[num].value, 0, 32);
armv7m_core_reg = armv7m->core_cache->reg_list[num].arch_info;
retval = armv7m->store_core_reg_u32(target, armv7m_core_reg->type, armv7m_core_reg->num, reg_value);
LOG_DEBUG("write core reg %i value 0x%x", num , reg_value);
armv7m->core_cache->reg_list[num].valid = 1;
armv7m->core_cache->reg_list[num].dirty = 0;
-
+
return ERROR_OK;
}
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
int i;
-
+
for (i = 0; i < armv7m->core_cache->num_regs; i++)
{
armv7m->core_cache->reg_list[i].valid = 0;
armv7m->core_cache->reg_list[i].dirty = 0;
}
-
+
return ERROR_OK;
}
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
int i;
-
+
*reg_list_size = 26;
*reg_list = malloc(sizeof(reg_t*) * (*reg_list_size));
-
+
for (i = 0; i < 16; i++)
{
(*reg_list)[i] = &armv7m->core_cache->reg_list[i];
}
-
+
for (i = 16; i < 24; i++)
{
(*reg_list)[i] = &armv7m_gdb_dummy_fp_reg;
}
-
+
(*reg_list)[24] = &armv7m_gdb_dummy_fps_reg;
#ifdef ARMV7_GDB_HACKS
/* use dummy cpsr reg otherwise gdb may try and set the thumb bit */
(*reg_list)[25] = &armv7m_gdb_dummy_cpsr_reg;
-
+
/* ARMV7M is always in thumb mode, try to make GDB understand this
* if it does not support this arch */
armv7m->core_cache->reg_list[15].value[0] |= 1;
u32 pc;
int i;
u32 context[ARMV7NUMCOREREGS];
-
+
if (armv7m_algorithm_info->common_magic != ARMV7M_COMMON_MAGIC)
{
LOG_ERROR("current target isn't an ARMV7M target");
return ERROR_TARGET_INVALID;
}
-
+
if (target->state != TARGET_HALTED)
{
LOG_WARNING("target not halted");
return ERROR_TARGET_NOT_HALTED;
}
-
+
/* refresh core register cache */
- /* Not needed if core register cache is always consistent with target process state */
+ /* Not needed if core register cache is always consistent with target process state */
for (i = 0; i < ARMV7NUMCOREREGS; i++)
{
if (!armv7m->core_cache->reg_list[i].valid)
armv7m->read_core_reg(target, i);
context[i] = buf_get_u32(armv7m->core_cache->reg_list[i].value, 0, 32);
}
-
+
for (i = 0; i < num_mem_params; i++)
{
target_write_buffer(target, mem_params[i].address, mem_params[i].size, mem_params[i].value);
}
-
+
for (i = 0; i < num_reg_params; i++)
{
reg_t *reg = register_get_by_name(armv7m->core_cache, reg_params[i].reg_name, 0);
u32 regvalue;
-
+
if (!reg)
{
LOG_ERROR("BUG: register '%s' not found", reg_params[i].reg_name);
exit(-1);
}
-
+
if (reg->size != reg_params[i].size)
{
LOG_ERROR("BUG: register '%s' size doesn't match reg_params[i].size", reg_params[i].reg_name);
exit(-1);
}
-
+
regvalue = buf_get_u32(reg_params[i].value, 0, 32);
armv7m_set_core_reg(reg, reg_params[i].value);
}
-
+
if (armv7m_algorithm_info->core_mode != ARMV7M_MODE_ANY)
{
LOG_DEBUG("setting core_mode: 0x%2.2x", armv7m_algorithm_info->core_mode);
armv7m->core_cache->reg_list[ARMV7M_CONTROL].dirty = 1;
armv7m->core_cache->reg_list[ARMV7M_CONTROL].valid = 1;
}
-
+
/* ARMV7M always runs in Thumb state */
if ((retval = breakpoint_add(target, exit_point, 2, BKPT_SOFT)) != ERROR_OK)
{
LOG_ERROR("can't add breakpoint to finish algorithm execution");
return ERROR_TARGET_FAILURE;
}
-
- /* This code relies on the target specific resume() and poll()->debug_entry()
+
+ /* This code relies on the target specific resume() and poll()->debug_entry()
sequence to write register values to the processor and the read them back */
target_resume(target, 0, entry_point, 1, 1);
target_poll(target);
-
+
target_wait_state(target, TARGET_HALTED, timeout_ms);
if (target->state != TARGET_HALTED)
{
}
return ERROR_TARGET_TIMEOUT;
}
-
-
+
+
armv7m->load_core_reg_u32(target, ARMV7M_REGISTER_CORE_GP, 15, &pc);
if (pc != exit_point)
{
- LOG_DEBUG("failed algoritm halted at 0x%x ", pc);
+ LOG_DEBUG("failed algoritm halted at 0x%x ", pc);
return ERROR_TARGET_TIMEOUT;
}
-
+
breakpoint_remove(target, exit_point);
-
+
/* Read memory values to mem_params[] */
for (i = 0; i < num_mem_params; i++)
{
if (mem_params[i].direction != PARAM_OUT)
target_read_buffer(target, mem_params[i].address, mem_params[i].size, mem_params[i].value);
}
-
+
/* Copy core register values to reg_params[] */
for (i = 0; i < num_reg_params; i++)
{
if (reg_params[i].direction != PARAM_OUT)
{
reg_t *reg = register_get_by_name(armv7m->core_cache, reg_params[i].reg_name, 0);
-
+
if (!reg)
{
LOG_ERROR("BUG: register '%s' not found", reg_params[i].reg_name);
exit(-1);
}
-
+
if (reg->size != reg_params[i].size)
{
LOG_ERROR("BUG: register '%s' size doesn't match reg_params[i].size", reg_params[i].reg_name);
exit(-1);
}
-
+
buf_set_u32(reg_params[i].value, 0, 32, buf_get_u32(reg->value, 0, 32));
}
}
-
+
for (i = ARMV7NUMCOREREGS-1; i >= 0; i--)
{
LOG_DEBUG("restoring register %s with value 0x%8.8x", armv7m->core_cache->reg_list[i].name, context[i]);
armv7m->core_cache->reg_list[i].valid = 1;
armv7m->core_cache->reg_list[i].dirty = 1;
}
-
+
armv7m->core_mode = core_mode;
-
+
return retval;
}
{
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
-
+
LOG_USER("target halted due to %s, current mode: %s %s\nxPSR: 0x%8.8x pc: 0x%8.8x",
Jim_Nvp_value2name_simple( nvp_target_debug_reason,target->debug_reason)->name,
armv7m_mode_strings[armv7m->core_mode],
armv7m_exception_string(armv7m->exception_number),
buf_get_u32(armv7m->core_cache->reg_list[ARMV7M_xPSR].value, 0, 32),
buf_get_u32(armv7m->core_cache->reg_list[15].value, 0, 32));
-
+
return ERROR_OK;
}
reg_t *reg_list = malloc(sizeof(reg_t) * num_regs);
armv7m_core_reg_t *arch_info = malloc(sizeof(armv7m_core_reg_t) * num_regs);
int i;
-
+
if (armv7m_core_reg_arch_type == -1)
{
armv7m_core_reg_arch_type = register_reg_arch_type(armv7m_get_core_reg, armv7m_set_core_reg);
}
-
+
register_init_dummy(&armv7m_gdb_dummy_fps_reg);
+#ifdef ARMV7_GDB_HACKS
register_init_dummy(&armv7m_gdb_dummy_cpsr_reg);
+#endif
register_init_dummy(&armv7m_gdb_dummy_fp_reg);
-
- /* Build the process context cache */
+
+ /* Build the process context cache */
cache->name = "arm v7m registers";
cache->next = NULL;
cache->reg_list = reg_list;
cache->num_regs = num_regs;
(*cache_p) = cache;
armv7m->core_cache = cache;
-
+
for (i = 0; i < num_regs; i++)
{
arch_info[i] = armv7m_core_reg_list_arch_info[i];
reg_list[i].arch_type = armv7m_core_reg_arch_type;
reg_list[i].arch_info = &arch_info[i];
}
-
+
return cache;
}
int armv7m_init_target(struct command_context_s *cmd_ctx, struct target_s *target)
{
armv7m_build_reg_cache(target);
-
+
return ERROR_OK;
}
int armv7m_init_arch_info(target_t *target, armv7m_common_t *armv7m)
{
/* register arch-specific functions */
-
+
target->arch_info = armv7m;
armv7m->read_core_reg = armv7m_read_core_reg;
armv7m->write_core_reg = armv7m_write_core_reg;
-
+
return ERROR_OK;
}
armv7m_algorithm_t armv7m_info;
reg_param_t reg_params[2];
int retval;
-
- u16 cortex_m3_crc_code[] = {
+
+ u16 cortex_m3_crc_code[] = {
0x4602, /* mov r2, r0 */
0xF04F, 0x30FF, /* mov r0, #0xffffffff */
0x460B, /* mov r3, r1 */
0x5D11, /* ldrb r1, [r2, r4] */
0xF8DF, 0x7028, /* ldr r7, CRC32XOR */
0xEA80, 0x6001, /* eor r0, r0, r1, asl #24 */
-
+
0xF04F, 0x0500, /* mov r5, #0 */
/* loop: */
0x2800, /* cmp r0, #0 */
0xEA86, 0x0007, /* eor r0, r6, r7 */
0x2D08, /* cmp r5, #8 */
0xD1F4, /* bne loop */
-
+
0xF104, 0x0401, /* add r4, r4, #1 */
/* ncomp: */
0x429C, /* cmp r4, r3 */
};
int i;
-
+
if (target_alloc_working_area(target, sizeof(cortex_m3_crc_code), &crc_algorithm) != ERROR_OK)
{
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
-
+
/* convert flash writing code into a buffer in target endianness */
for (i = 0; i < (sizeof(cortex_m3_crc_code)/sizeof(u16)); i++)
target_write_u16(target, crc_algorithm->address + i*sizeof(u16), cortex_m3_crc_code[i]);
-
+
armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
armv7m_info.core_mode = ARMV7M_MODE_ANY;
-
+
init_reg_param(®_params[0], "r0", 32, PARAM_IN_OUT);
init_reg_param(®_params[1], "r1", 32, PARAM_OUT);
-
+
buf_set_u32(reg_params[0].value, 0, 32, address);
buf_set_u32(reg_params[1].value, 0, 32, count);
-
+
if ((retval = target->type->run_algorithm(target, 0, NULL, 2, reg_params,
crc_algorithm->address, crc_algorithm->address + (sizeof(cortex_m3_crc_code)-6), 20000, &armv7m_info)) != ERROR_OK)
{
target_free_working_area(target, crc_algorithm);
return retval;
}
-
+
*checksum = buf_get_u32(reg_params[0].value, 0, 32);
-
+
destroy_reg_param(®_params[0]);
destroy_reg_param(®_params[1]);
-
+
target_free_working_area(target, crc_algorithm);
-
+
return ERROR_OK;
}
armv7m_algorithm_t armv7m_info;
int retval;
int i;
-
+
u16 erase_check_code[] =
{
/* loop: */
{
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
-
+
/* convert flash writing code into a buffer in target endianness */
for (i = 0; i < (sizeof(erase_check_code)/sizeof(u16)); i++)
target_write_u16(target, erase_check_algorithm->address + i*sizeof(u16), erase_check_code[i]);
-
+
armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
armv7m_info.core_mode = ARMV7M_MODE_ANY;
init_reg_param(®_params[2], "r2", 32, PARAM_IN_OUT);
buf_set_u32(reg_params[2].value, 0, 32, 0xff);
- if ((retval = target->type->run_algorithm(target, 0, NULL, 3, reg_params,
+ if ((retval = target->type->run_algorithm(target, 0, NULL, 3, reg_params,
erase_check_algorithm->address, erase_check_algorithm->address + (sizeof(erase_check_code)-2), 10000, &armv7m_info)) != ERROR_OK)
{
destroy_reg_param(®_params[0]);
target_free_working_area(target, erase_check_algorithm);
return 0;
}
-
+
*blank = buf_get_u32(reg_params[2].value, 0, 32);
-
+
destroy_reg_param(®_params[0]);
destroy_reg_param(®_params[1]);
destroy_reg_param(®_params[2]);
-
+
target_free_working_area(target, erase_check_algorithm);
-
+
return ERROR_OK;
}
projects / openocd / commitdiff