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ETM: more ETM_CTRL bit cleanup

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Change handling of the CYCLE_ACCURATE, BRANCH_OUTPUT, and
TRACE_* flags; also the CONTEXTID size values.

 - Convert to symbols matching the actual register bits, instead of
   some random *other* bits (and then correcting that abuse).

 - Get rid of a now-needless enum.

 - Keep those values in etm->control, and remove etm->tracemode.

These values all affect the trace data that's recorded by a trace
pod or in the ETB.  I modified the file format used to dump ETB
data; since it's fairly clear nobody can use this mechanism now,
this can't cause anyone trouble.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
This commit is contained in:
David Brownell
2009-12-19 13:07:26 -08:00
parent e25819645e
commit 64934d9204
2 changed files with 49 additions and 56 deletions
Download Patch File Download Diff File Expand all files Collapse all files

75
src/target/etm.c
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@@ -1059,7 +1059,7 @@ static int etmv1_analyze_trace(struct etm_context *ctx, struct command_context *
ctx->data_half = old_data_half;
}
if (ctx->tracemode & ETMV1_TRACE_ADDR)
if (ctx->control & ETM_CTRL_TRACE_ADDR)
{
uint8_t packet;
int shift = 0;
@@ -1081,7 +1081,7 @@ static int etmv1_analyze_trace(struct etm_context *ctx, struct command_context *
}
}
if (ctx->tracemode & ETMV1_TRACE_DATA)
if (ctx->control & ETM_CTRL_TRACE_DATA)
{
if ((instruction.type == ARM_LDM) || (instruction.type == ARM_STM))
{
@@ -1141,7 +1141,7 @@ static int etmv1_analyze_trace(struct etm_context *ctx, struct command_context *
/* if the trace was captured with cycle accurate tracing enabled,
* output the number of cycles since the last executed instruction
*/
if (ctx->tracemode & ETMV1_CYCLE_ACCURATE)
if (ctx->control & ETM_CTRL_CYCLE_ACCURATE)
{
snprintf(cycles_text, 32, " (%i %s)",
(int)cycles,
@@ -1178,13 +1178,13 @@ static COMMAND_HELPER(handle_etm_tracemode_command_update,
/* what parts of data access are traced? */
if (strcmp(CMD_ARGV[0], "none") == 0)
tracemode = ETMV1_TRACE_NONE;
tracemode = 0;
else if (strcmp(CMD_ARGV[0], "data") == 0)
tracemode = ETMV1_TRACE_DATA;
tracemode = ETM_CTRL_TRACE_DATA;
else if (strcmp(CMD_ARGV[0], "address") == 0)
tracemode = ETMV1_TRACE_ADDR;
tracemode = ETM_CTRL_TRACE_ADDR;
else if (strcmp(CMD_ARGV[0], "all") == 0)
tracemode = ETMV1_TRACE_DATA | ETMV1_TRACE_ADDR;
tracemode = ETM_CTRL_TRACE_DATA | ETM_CTRL_TRACE_ADDR;
else
{
command_print(CMD_CTX, "invalid option '%s'", CMD_ARGV[0]);
@@ -1196,16 +1196,16 @@ static COMMAND_HELPER(handle_etm_tracemode_command_update,
switch (context_id)
{
case 0:
tracemode |= ETMV1_CONTEXTID_NONE;
tracemode |= ETM_CTRL_CONTEXTID_NONE;
break;
case 8:
tracemode |= ETMV1_CONTEXTID_8;
tracemode |= ETM_CTRL_CONTEXTID_8;
break;
case 16:
tracemode |= ETMV1_CONTEXTID_16;
tracemode |= ETM_CTRL_CONTEXTID_16;
break;
case 32:
tracemode |= ETMV1_CONTEXTID_32;
tracemode |= ETM_CTRL_CONTEXTID_32;
break;
default:
command_print(CMD_CTX, "invalid option '%s'", CMD_ARGV[1]);
@@ -1215,12 +1215,12 @@ static COMMAND_HELPER(handle_etm_tracemode_command_update,
bool etmv1_cycle_accurate;
COMMAND_PARSE_ENABLE(CMD_ARGV[2], etmv1_cycle_accurate);
if (etmv1_cycle_accurate)
tracemode |= ETMV1_CYCLE_ACCURATE;
tracemode |= ETM_CTRL_CYCLE_ACCURATE;
bool etmv1_branch_output;
COMMAND_PARSE_ENABLE(CMD_ARGV[3], etmv1_branch_output);
if (etmv1_branch_output)
tracemode |= ETMV1_BRANCH_OUTPUT;
tracemode |= ETM_CTRL_BRANCH_OUTPUT;
/* IGNORED:
* - CPRT tracing (coprocessor register transfers)
@@ -1249,7 +1249,7 @@ COMMAND_HANDLER(handle_etm_tracemode_command)
return ERROR_FAIL;
}
uint32_t tracemode = etm->tracemode;
uint32_t tracemode = etm->control;
switch (CMD_ARGC)
{
@@ -1272,39 +1272,39 @@ COMMAND_HANDLER(handle_etm_tracemode_command)
command_print(CMD_CTX, "current tracemode configuration:");
switch (tracemode & ETMV1_TRACE_MASK)
switch (tracemode & ETM_CTRL_TRACE_MASK)
{
case ETMV1_TRACE_NONE:
default:
command_print(CMD_CTX, "data tracing: none");
break;
case ETMV1_TRACE_DATA:
case ETM_CTRL_TRACE_DATA:
command_print(CMD_CTX, "data tracing: data only");
break;
case ETMV1_TRACE_ADDR:
case ETM_CTRL_TRACE_ADDR:
command_print(CMD_CTX, "data tracing: address only");
break;
case ETMV1_TRACE_DATA | ETMV1_TRACE_ADDR:
case ETM_CTRL_TRACE_DATA | ETM_CTRL_TRACE_ADDR:
command_print(CMD_CTX, "data tracing: address and data");
break;
}
switch (tracemode & ETMV1_CONTEXTID_MASK)
switch (tracemode & ETM_CTRL_CONTEXTID_MASK)
{
case ETMV1_CONTEXTID_NONE:
case ETM_CTRL_CONTEXTID_NONE:
command_print(CMD_CTX, "contextid tracing: none");
break;
case ETMV1_CONTEXTID_8:
case ETM_CTRL_CONTEXTID_8:
command_print(CMD_CTX, "contextid tracing: 8 bit");
break;
case ETMV1_CONTEXTID_16:
case ETM_CTRL_CONTEXTID_16:
command_print(CMD_CTX, "contextid tracing: 16 bit");
break;
case ETMV1_CONTEXTID_32:
case ETM_CTRL_CONTEXTID_32:
command_print(CMD_CTX, "contextid tracing: 32 bit");
break;
}
if (tracemode & ETMV1_CYCLE_ACCURATE)
if (tracemode & ETM_CTRL_CYCLE_ACCURATE)
{
command_print(CMD_CTX, "cycle-accurate tracing enabled");
}
@@ -1313,7 +1313,7 @@ COMMAND_HANDLER(handle_etm_tracemode_command)
command_print(CMD_CTX, "cycle-accurate tracing disabled");
}
if (tracemode & ETMV1_BRANCH_OUTPUT)
if (tracemode & ETM_CTRL_BRANCH_OUTPUT)
{
command_print(CMD_CTX, "full branch address output enabled");
}
@@ -1322,8 +1322,15 @@ COMMAND_HANDLER(handle_etm_tracemode_command)
command_print(CMD_CTX, "full branch address output disabled");
}
#define TRACEMODE_MASK ( \
ETM_CTRL_CONTEXTID_MASK \
| ETM_CTRL_BRANCH_OUTPUT \
| ETM_CTRL_CYCLE_ACCURATE \
| ETM_CTRL_TRACE_MASK \
)
/* only update ETM_CTRL register if tracemode changed */
if (etm->tracemode != tracemode)
if ((etm->control & TRACEMODE_MASK) != tracemode)
{
struct reg *etm_ctrl_reg;
@@ -1333,13 +1340,11 @@ COMMAND_HANDLER(handle_etm_tracemode_command)
etm_get_reg(etm_ctrl_reg);
buf_set_u32(etm_ctrl_reg->value, 2, 2, tracemode & ETMV1_TRACE_MASK);
buf_set_u32(etm_ctrl_reg->value, 14, 2, (tracemode & ETMV1_CONTEXTID_MASK) >> 4);
buf_set_u32(etm_ctrl_reg->value, 12, 1, (tracemode & ETMV1_CYCLE_ACCURATE) >> 8);
buf_set_u32(etm_ctrl_reg->value, 8, 1, (tracemode & ETMV1_BRANCH_OUTPUT) >> 9);
etm_store_reg(etm_ctrl_reg);
etm->control &= ~TRACEMODE_MASK;
etm->control |= tracemode & TRACEMODE_MASK;
etm->tracemode = tracemode;
buf_set_u32(etm_ctrl_reg->value, 0, 32, etm->control);
etm_store_reg(etm_ctrl_reg);
/* invalidate old trace data */
etm->capture_status = TRACE_IDLE;
@@ -1351,6 +1356,8 @@ COMMAND_HANDLER(handle_etm_tracemode_command)
etm->trace_depth = 0;
}
#undef TRACEMODE_MASK
return ERROR_OK;
}
@@ -1825,7 +1832,6 @@ COMMAND_HANDLER(handle_etm_dump_command)
fileio_write_u32(&file, etm_ctx->capture_status);
fileio_write_u32(&file, etm_ctx->control);
fileio_write_u32(&file, etm_ctx->tracemode);
fileio_write_u32(&file, etm_ctx->trace_depth);
for (i = 0; i < etm_ctx->trace_depth; i++)
@@ -1897,7 +1903,6 @@ COMMAND_HANDLER(handle_etm_load_command)
uint32_t tmp;
fileio_read_u32(&file, &tmp); etm_ctx->capture_status = tmp;
fileio_read_u32(&file, &tmp); etm_ctx->control = tmp;
fileio_read_u32(&file, &tmp); etm_ctx->tracemode = tmp;
fileio_read_u32(&file, &etm_ctx->trace_depth);
}
etm_ctx->trace_data = malloc(sizeof(struct etmv1_trace_data) * etm_ctx->trace_depth);