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Fix debug prints when loading to flash 

While loading to flash with debug level at least 3,
OpenOCD tries to print the whole loaded bitstream.
This will be very-very-slow due to implementation of
conversion from buffer to string.

* fix condition on selected debug level in jtag/core.c
* replace slow buf_to_str function from helper/binarybuffer.c
  with faster but_to_hex_str function

Change-Id: I3dc01d5846941ca80736f2ed12e3a54114d2b6dd
Signed-off-by: Samuel Obuch <sobuch@codasip.com>
Reviewed-on: http://openocd.zylin.com/5800
Tested-by: jenkins
Reviewed-by: Jan Matyas <matyas@codasip.com>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
This commit is contained in:
Samuel Obuch 2020-08-11 17:37:01 +02:00 committed by Antonio Borneo
parent 764b25c814
commit 3ac010bb9f
7 changed files with 31 additions and 58 deletions
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41
src/helper/binarybuffer.c
View File

@ -199,45 +199,20 @@ static int ceil_f_to_u32(float x)
return y;
}
char *buf_to_str(const void *_buf, unsigned buf_len, unsigned radix)
char *buf_to_hex_str(const void *_buf, unsigned buf_len)
{
float factor;
switch (radix) {
case 16:
factor = 2.0; /* log(256) / log(16) = 2.0 */
break;
case 10:
factor = 2.40824; /* log(256) / log(10) = 2.40824 */
break;
case 8:
factor = 2.66667; /* log(256) / log(8) = 2.66667 */
break;
default:
return NULL;
}
unsigned str_len = ceil_f_to_u32(DIV_ROUND_UP(buf_len, 8) * factor);
char *str = calloc(str_len + 1, 1);
unsigned len_bytes = DIV_ROUND_UP(buf_len, 8);
char *str = calloc(len_bytes * 2 + 1, 1);
const uint8_t *buf = _buf;
int b256_len = DIV_ROUND_UP(buf_len, 8);
for (int i = b256_len - 1; i >= 0; i--) {
uint32_t tmp = buf[i];
if (((unsigned)i == (buf_len / 8)) && (buf_len % 8))
for (unsigned i = 0; i < len_bytes; i++) {
uint8_t tmp = buf[len_bytes - i - 1];
if ((i == 0) && (buf_len % 8))
tmp &= (0xff >> (8 - (buf_len % 8)));
/* base-256 digits */
for (unsigned j = str_len; j > 0; j--) {
tmp += (uint32_t)str[j-1] * 256;
str[j-1] = (uint8_t)(tmp % radix);
tmp /= radix;
}
str[2 * i] = hex_digits[tmp >> 4];
str[2 * i + 1] = hex_digits[tmp & 0xf];
}
const char * const DIGITS = "0123456789ABCDEF";
for (unsigned j = 0; j < str_len; j++)
str[j] = DIGITS[(int)str[j]];
return str;
}

2
src/helper/binarybuffer.h
View File

@ -201,7 +201,7 @@ void *buf_set_buf(const void *src, unsigned src_start,
int str_to_buf(const char *str, unsigned len,
void *bin_buf, unsigned buf_size, unsigned radix);
char *buf_to_str(const void *buf, unsigned size, unsigned radix);
char *buf_to_hex_str(const void *buf, unsigned size);
/* read a uint32_t from a buffer in target memory endianness */
static inline uint32_t fast_target_buffer_get_u32(const void *p, bool le)

8
src/jtag/commands.c
View File

@ -214,10 +214,10 @@ int jtag_build_buffer(const struct scan_command *cmd, uint8_t **buffer)
for (i = 0; i < cmd->num_fields; i++) {
if (cmd->fields[i].out_value) {
if (LOG_LEVEL_IS(LOG_LVL_DEBUG_IO)) {
char *char_buf = buf_to_str(cmd->fields[i].out_value,
char *char_buf = buf_to_hex_str(cmd->fields[i].out_value,
(cmd->fields[i].num_bits > DEBUG_JTAG_IOZ)
? DEBUG_JTAG_IOZ
: cmd->fields[i].num_bits, 16);
: cmd->fields[i].num_bits);
LOG_DEBUG("fields[%i].out_value[%i]: 0x%s", i,
cmd->fields[i].num_bits, char_buf);
@ -257,10 +257,10 @@ int jtag_read_buffer(uint8_t *buffer, const struct scan_command *cmd)
malloc(DIV_ROUND_UP(num_bits, 8)), 0, num_bits);
if (LOG_LEVEL_IS(LOG_LVL_DEBUG_IO)) {
char *char_buf = buf_to_str(captured,
char *char_buf = buf_to_hex_str(captured,
(num_bits > DEBUG_JTAG_IOZ)
? DEBUG_JTAG_IOZ
: num_bits, 16);
: num_bits);
LOG_DEBUG("fields[%i].in_value[%i]: 0x%s",
i, num_bits, char_buf);

14
src/jtag/core.c
View File

@ -891,8 +891,8 @@ static int jtag_check_value_inner(uint8_t *captured, uint8_t *in_check_value,
/* NOTE: we've lost diagnostic context here -- 'which tap' */
captured_str = buf_to_str(captured, bits, 16);
in_check_value_str = buf_to_str(in_check_value, bits, 16);
captured_str = buf_to_hex_str(captured, bits);
in_check_value_str = buf_to_hex_str(in_check_value, bits);
LOG_WARNING("Bad value '%s' captured during DR or IR scan:",
captured_str);
@ -904,7 +904,7 @@ static int jtag_check_value_inner(uint8_t *captured, uint8_t *in_check_value,
if (in_check_mask) {
char *in_check_mask_str;
in_check_mask_str = buf_to_str(in_check_mask, bits, 16);
in_check_mask_str = buf_to_hex_str(in_check_mask, bits);
LOG_WARNING(" check_mask: 0x%s", in_check_mask_str);
free(in_check_mask_str);
}
@ -960,7 +960,7 @@ int default_interface_jtag_execute_queue(void)
* jtag/Makefile.am if MINIDRIVER_DUMMY || !MINIDRIVER, but those variables
* aren't accessible here. */
struct jtag_command *cmd = jtag_command_queue;
while (debug_level >= LOG_LVL_DEBUG && cmd) {
while (debug_level >= LOG_LVL_DEBUG_IO && cmd) {
switch (cmd->type) {
case JTAG_SCAN:
LOG_DEBUG_IO("JTAG %s SCAN to %s",
@ -969,12 +969,12 @@ int default_interface_jtag_execute_queue(void)
for (int i = 0; i < cmd->cmd.scan->num_fields; i++) {
struct scan_field *field = cmd->cmd.scan->fields + i;
if (field->out_value) {
char *str = buf_to_str(field->out_value, field->num_bits, 16);
char *str = buf_to_hex_str(field->out_value, field->num_bits);
LOG_DEBUG_IO(" %db out: %s", field->num_bits, str);
free(str);
}
if (field->in_value) {
char *str = buf_to_str(field->in_value, field->num_bits, 16);
char *str = buf_to_hex_str(field->in_value, field->num_bits);
LOG_DEBUG_IO(" %db in: %s", field->num_bits, str);
free(str);
}
@ -1436,7 +1436,7 @@ static int jtag_validate_ircapture(void)
/* verify the '11' sentinel we wrote is returned at the end */
val = buf_get_u64(ir_test, chain_pos, 2);
if (val != 0x3) {
char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
char *cbuf = buf_to_hex_str(ir_test, total_ir_length);
LOG_ERROR("IR capture error at bit %d, saw 0x%s not 0x...3",
chain_pos, cbuf);

10
src/jtag/drivers/jtag_vpi.c
View File

@ -103,11 +103,10 @@ static int jtag_vpi_send_cmd(struct vpi_cmd *vpi)
if (LOG_LEVEL_IS(LOG_LVL_DEBUG_IO)) {
if (vpi->nb_bits > 0) {
/* command with a non-empty data payload */
char *char_buf = buf_to_str(vpi->buffer_out,
char *char_buf = buf_to_hex_str(vpi->buffer_out,
(vpi->nb_bits > DEBUG_JTAG_IOZ)
? DEBUG_JTAG_IOZ
: vpi->nb_bits,
16);
: vpi->nb_bits);
LOG_DEBUG_IO("sending JTAG VPI cmd: cmd=%s, "
"length=%" PRIu32 ", "
"nb_bits=%" PRIu32 ", "
@ -328,9 +327,8 @@ static int jtag_vpi_queue_tdi_xfer(uint8_t *bits, int nb_bits, int tap_shift)
/* Optional low-level JTAG debug */
if (LOG_LEVEL_IS(LOG_LVL_DEBUG_IO)) {
char *char_buf = buf_to_str(vpi.buffer_in,
(nb_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : nb_bits,
16);
char *char_buf = buf_to_hex_str(vpi.buffer_in,
(nb_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : nb_bits);
LOG_DEBUG_IO("recvd JTAG VPI data: nb_bits=%d, buf_in=0x%s%s",
nb_bits, char_buf, (nb_bits > DEBUG_JTAG_IOZ) ? "(...)" : "");
free(char_buf);

2
src/jtag/tcl.c
View File

@ -204,7 +204,7 @@ static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args
char *str;
Jim_GetLong(interp, args[i], &bits);
str = buf_to_str(fields[field_count].in_value, bits, 16);
str = buf_to_hex_str(fields[field_count].in_value, bits);
free(fields[field_count].in_value);
Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));

12
src/target/target.c
View File

@ -2897,8 +2897,8 @@ COMMAND_HANDLER(handle_reg_command)
continue;
/* only print cached values if they are valid */
if (reg->valid) {
value = buf_to_str(reg->value,
reg->size, 16);
value = buf_to_hex_str(reg->value,
reg->size);
command_print(CMD,
"(%i) %s (/%" PRIu32 "): 0x%s%s",
count, reg->name,
@ -2965,7 +2965,7 @@ COMMAND_HANDLER(handle_reg_command)
if (reg->valid == 0)
reg->type->get(reg);
value = buf_to_str(reg->value, reg->size, 16);
value = buf_to_hex_str(reg->value, reg->size);
command_print(CMD, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
free(value);
return ERROR_OK;
@ -2980,7 +2980,7 @@ COMMAND_HANDLER(handle_reg_command)
reg->type->set(reg, buf);
value = buf_to_str(reg->value, reg->size, 16);
value = buf_to_hex_str(reg->value, reg->size);
command_print(CMD, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
free(value);
@ -3744,8 +3744,8 @@ static int handle_bp_command_list(struct command_invocation *cmd)
struct breakpoint *breakpoint = target->breakpoints;
while (breakpoint) {
if (breakpoint->type == BKPT_SOFT) {
char *buf = buf_to_str(breakpoint->orig_instr,
breakpoint->length, 16);
char *buf = buf_to_hex_str(breakpoint->orig_instr,
breakpoint->length);
command_print(cmd, "IVA breakpoint: " TARGET_ADDR_FMT ", 0x%x, %i, 0x%s",
breakpoint->address,
breakpoint->length,