#include "armv4_5.h"
#include "arm7_9_common.h"
+#include "arm_disassembler.h"
+#include "arm_simulator.h"
#include "log.h"
#include "arm_jtag.h"
etm_reg_t *arch_info = NULL;
int num_regs = sizeof(etm_reg_arch_info)/sizeof(int);
int i;
- u32 etm_ctrl_value;
/* register a register arch-type for etm registers only once */
if (etm_reg_arch_type == -1)
arch_info[i].jtag_info = jtag_info;
}
- /* initialize some ETM control register settings */
- etm_get_reg(®_list[ETM_CTRL]);
- etm_ctrl_value = buf_get_u32(reg_list[ETM_CTRL].value, 0, reg_list[ETM_CTRL].size);
-
- /* clear the ETM powerdown bit (0) */
- etm_ctrl_value &= ~0x1;
-
- /* configure port width (6:4), mode (17:16) and clocking (13) */
- etm_ctrl_value = (etm_ctrl_value &
- ~ETM_PORT_WIDTH_MASK & ~ETM_PORT_MODE_MASK & ~ETM_PORT_CLOCK_MASK)
- | etm_ctx->portmode;
-
- buf_set_u32(reg_list[ETM_CTRL].value, 0, reg_list[ETM_CTRL].size, etm_ctrl_value);
- etm_store_reg(®_list[ETM_CTRL]);
-
/* the ETM might have an ETB connected */
if (strcmp(etm_ctx->capture_driver->name, "etb") == 0)
{
if (!etb)
{
- ERROR("etb selected as etm capture driver, but no ETB configured");
+ LOG_ERROR("etb selected as etm capture driver, but no ETB configured");
return ERROR_OK;
}
reg_cache->next = etb_build_reg_cache(etb);
etb->reg_cache = reg_cache->next;
-
- if (etm_ctx->capture_driver->init(etm_ctx) != ERROR_OK)
- {
- ERROR("ETM capture driver initialization failed");
- exit(-1);
- }
}
+
return reg_cache;
}
+int etm_setup(target_t *target)
+{
+ int retval;
+ u32 etm_ctrl_value;
+ armv4_5_common_t *armv4_5 = target->arch_info;
+ arm7_9_common_t *arm7_9 = armv4_5->arch_info;
+ etm_context_t *etm_ctx = arm7_9->etm_ctx;
+ reg_t *etm_ctrl_reg = &arm7_9->etm_ctx->reg_cache->reg_list[ETM_CTRL];
+ /* initialize some ETM control register settings */
+ etm_get_reg(etm_ctrl_reg);
+ etm_ctrl_value = buf_get_u32(etm_ctrl_reg->value, 0, etm_ctrl_reg->size);
+
+ /* clear the ETM powerdown bit (0) */
+ etm_ctrl_value &= ~0x1;
+
+ /* configure port width (6:4), mode (17:16) and clocking (13) */
+ etm_ctrl_value = (etm_ctrl_value &
+ ~ETM_PORT_WIDTH_MASK & ~ETM_PORT_MODE_MASK & ~ETM_PORT_CLOCK_MASK)
+ | etm_ctx->portmode;
+
+ buf_set_u32(etm_ctrl_reg->value, 0, etm_ctrl_reg->size, etm_ctrl_value);
+ etm_store_reg(etm_ctrl_reg);
+
+ if ((retval=jtag_execute_queue())!=ERROR_OK)
+ return retval;
+
+ if ((retval=etm_ctx->capture_driver->init(etm_ctx)) != ERROR_OK)
+ {
+ LOG_ERROR("ETM capture driver initialization failed");
+ return retval;
+ }
+ return ERROR_OK;
+}
+
int etm_get_reg(reg_t *reg)
{
if (etm_read_reg(reg) != ERROR_OK)
{
- ERROR("BUG: error scheduling etm register read");
+ LOG_ERROR("BUG: error scheduling etm register read");
exit(-1);
}
if (jtag_execute_queue() != ERROR_OK)
{
- ERROR("register read failed");
+ LOG_ERROR("register read failed");
}
return ERROR_OK;
u8 reg_addr = etm_reg->addr & 0x7f;
scan_field_t fields[3];
- DEBUG("%i", etm_reg->addr);
+ LOG_DEBUG("%i", etm_reg->addr);
jtag_add_end_state(TAP_RTI);
arm_jtag_scann(etm_reg->jtag_info, 0x6);
fields[2].in_handler = NULL;
fields[2].in_handler_priv = NULL;
- jtag_add_dr_scan(3, fields, -1, NULL);
+ jtag_add_dr_scan(3, fields, -1);
fields[0].in_value = reg->value;
- fields[0].in_check_value = check_value;
- fields[0].in_check_mask = check_mask;
+ jtag_set_check_value(fields+0, check_value, check_mask, NULL);
- jtag_add_dr_scan(3, fields, -1, NULL);
+ jtag_add_dr_scan(3, fields, -1);
free(fields[1].out_value);
free(fields[2].out_value);
{
if (etm_write_reg(reg, value) != ERROR_OK)
{
- ERROR("BUG: error scheduling etm register write");
+ LOG_ERROR("BUG: error scheduling etm register write");
exit(-1);
}
if (jtag_execute_queue() != ERROR_OK)
{
- ERROR("register write failed");
+ LOG_ERROR("register write failed");
exit(-1);
}
return ERROR_OK;
u8 reg_addr = etm_reg->addr & 0x7f;
scan_field_t fields[3];
- DEBUG("%i: 0x%8.8x", etm_reg->addr, value);
+ LOG_DEBUG("%i: 0x%8.8x", etm_reg->addr, value);
jtag_add_end_state(TAP_RTI);
arm_jtag_scann(etm_reg->jtag_info, 0x6);
fields[2].in_handler = NULL;
fields[2].in_handler_priv = NULL;
- jtag_add_dr_scan(3, fields, -1, NULL);
+ jtag_add_dr_scan(3, fields, -1);
free(fields[0].out_value);
free(fields[1].out_value);
*
*/
extern etm_capture_driver_t etb_capture_driver;
+extern etm_capture_driver_t etm_dummy_capture_driver;
+#if BUILD_OOCD_TRACE == 1
+extern etm_capture_driver_t oocd_trace_capture_driver;
+#endif
etm_capture_driver_t *etm_capture_drivers[] =
{
&etb_capture_driver,
+ &etm_dummy_capture_driver,
+#if BUILD_OOCD_TRACE == 1
+ &oocd_trace_capture_driver,
+#endif
NULL
};
"reserved",
};
-int etmv1_next_packet(etm_context_t *ctx, u8 *packet)
+int etm_read_instruction(etm_context_t *ctx, arm_instruction_t *instruction)
{
+ int i;
+ int section = -1;
+ u32 size_read;
+ u32 opcode;
+ int retval;
+
+ if (!ctx->image)
+ return ERROR_TRACE_IMAGE_UNAVAILABLE;
+ /* search for the section the current instruction belongs to */
+ for (i = 0; i < ctx->image->num_sections; i++)
+ {
+ if ((ctx->image->sections[i].base_address <= ctx->current_pc) &&
+ (ctx->image->sections[i].base_address + ctx->image->sections[i].size > ctx->current_pc))
+ {
+ section = i;
+ break;
+ }
+ }
+
+ if (section == -1)
+ {
+ /* current instruction couldn't be found in the image */
+ return ERROR_TRACE_INSTRUCTION_UNAVAILABLE;
+ }
+
+ if (ctx->core_state == ARMV4_5_STATE_ARM)
+ {
+ u8 buf[4];
+ if ((retval = image_read_section(ctx->image, section,
+ ctx->current_pc - ctx->image->sections[section].base_address,
+ 4, buf, &size_read)) != ERROR_OK)
+ {
+ LOG_ERROR("error while reading instruction: %i", retval);
+ return ERROR_TRACE_INSTRUCTION_UNAVAILABLE;
+ }
+ opcode = target_buffer_get_u32(ctx->target, buf);
+ arm_evaluate_opcode(opcode, ctx->current_pc, instruction);
+ }
+ else if (ctx->core_state == ARMV4_5_STATE_THUMB)
+ {
+ u8 buf[2];
+ if ((retval = image_read_section(ctx->image, section,
+ ctx->current_pc - ctx->image->sections[section].base_address,
+ 2, buf, &size_read)) != ERROR_OK)
+ {
+ LOG_ERROR("error while reading instruction: %i", retval);
+ return ERROR_TRACE_INSTRUCTION_UNAVAILABLE;
+ }
+ opcode = target_buffer_get_u16(ctx->target, buf);
+ thumb_evaluate_opcode(opcode, ctx->current_pc, instruction);
+ }
+ else if (ctx->core_state == ARMV4_5_STATE_JAZELLE)
+ {
+ LOG_ERROR("BUG: tracing of jazelle code not supported");
+ exit(-1);
+ }
+ else
+ {
+ LOG_ERROR("BUG: unknown core state encountered");
+ exit(-1);
+ }
return ERROR_OK;
}
-int etmv1_analyse_trace(etm_context_t *ctx)
+int etmv1_next_packet(etm_context_t *ctx, u8 *packet, int apo)
{
+ while (ctx->data_index < ctx->trace_depth)
+ {
+ /* if the caller specified an address packet offset, skip until the
+ * we reach the n-th cycle marked with tracesync */
+ if (apo > 0)
+ {
+ if (ctx->trace_data[ctx->data_index].flags & ETMV1_TRACESYNC_CYCLE)
+ apo--;
+
+ if (apo > 0)
+ {
+ ctx->data_index++;
+ ctx->data_half = 0;
+ }
+ continue;
+ }
+
+ /* no tracedata output during a TD cycle
+ * or in a trigger cycle */
+ if ((ctx->trace_data[ctx->data_index].pipestat == STAT_TD)
+ || (ctx->trace_data[ctx->data_index].flags & ETMV1_TRIGGER_CYCLE))
+ {
+ ctx->data_index++;
+ ctx->data_half = 0;
+ continue;
+ }
+
+ if ((ctx->portmode & ETM_PORT_WIDTH_MASK) == ETM_PORT_16BIT)
+ {
+ if (ctx->data_half == 0)
+ {
+ *packet = ctx->trace_data[ctx->data_index].packet & 0xff;
+ ctx->data_half = 1;
+ }
+ else
+ {
+ *packet = (ctx->trace_data[ctx->data_index].packet & 0xff00) >> 8;
+ ctx->data_half = 0;
+ ctx->data_index++;
+ }
+ }
+ else if ((ctx->portmode & ETM_PORT_WIDTH_MASK) == ETM_PORT_8BIT)
+ {
+ *packet = ctx->trace_data[ctx->data_index].packet & 0xff;
+ ctx->data_index++;
+ }
+ else
+ {
+ /* on a 4-bit port, a packet will be output during two consecutive cycles */
+ if (ctx->data_index > (ctx->trace_depth - 2))
+ return -1;
+
+ *packet = ctx->trace_data[ctx->data_index].packet & 0xf;
+ *packet |= (ctx->trace_data[ctx->data_index + 1].packet & 0xf) << 4;
+ ctx->data_index += 2;
+ }
+
+ return 0;
+ }
+
+ return -1;
+}
+
+int etmv1_branch_address(etm_context_t *ctx)
+{
+ int retval;
+ u8 packet;
+ int shift = 0;
+ int apo;
+ int i;
+
+ /* quit analysis if less than two cycles are left in the trace
+ * because we can't extract the APO */
+ if (ctx->data_index > (ctx->trace_depth - 2))
+ return -1;
+
+ /* a BE could be output during an APO cycle, skip the current
+ * and continue with the new one */
+ if (ctx->trace_data[ctx->pipe_index + 1].pipestat & 0x4)
+ return 1;
+ if (ctx->trace_data[ctx->pipe_index + 2].pipestat & 0x4)
+ return 2;
+
+ /* address packet offset encoded in the next two cycles' pipestat bits */
+ apo = ctx->trace_data[ctx->pipe_index + 1].pipestat & 0x3;
+ apo |= (ctx->trace_data[ctx->pipe_index + 2].pipestat & 0x3) << 2;
+
+ /* count number of tracesync cycles between current pipe_index and data_index
+ * i.e. the number of tracesyncs that data_index already passed by
+ * to subtract them from the APO */
+ for (i = ctx->pipe_index; i < ctx->data_index; i++)
+ {
+ if (ctx->trace_data[ctx->pipe_index + 1].pipestat & ETMV1_TRACESYNC_CYCLE)
+ apo--;
+ }
+
+ /* extract up to four 7-bit packets */
+ do {
+ if ((retval = etmv1_next_packet(ctx, &packet, (shift == 0) ? apo + 1 : 0)) != 0)
+ return -1;
+ ctx->last_branch &= ~(0x7f << shift);
+ ctx->last_branch |= (packet & 0x7f) << shift;
+ shift += 7;
+ } while ((packet & 0x80) && (shift < 28));
+
+ /* one last packet holding 4 bits of the address, plus the branch reason code */
+ if ((shift == 28) && (packet & 0x80))
+ {
+ if ((retval = etmv1_next_packet(ctx, &packet, 0)) != 0)
+ return -1;
+ ctx->last_branch &= 0x0fffffff;
+ ctx->last_branch |= (packet & 0x0f) << 28;
+ ctx->last_branch_reason = (packet & 0x70) >> 4;
+ shift += 4;
+ }
+ else
+ {
+ ctx->last_branch_reason = 0;
+ }
+
+ if (shift == 32)
+ {
+ ctx->pc_ok = 1;
+ }
+
+ /* if a full address was output, we might have branched into Jazelle state */
+ if ((shift == 32) && (packet & 0x80))
+ {
+ ctx->core_state = ARMV4_5_STATE_JAZELLE;
+ }
+ else
+ {
+ /* if we didn't branch into Jazelle state, the current processor state is
+ * encoded in bit 0 of the branch target address */
+ if (ctx->last_branch & 0x1)
+ {
+ ctx->core_state = ARMV4_5_STATE_THUMB;
+ ctx->last_branch &= ~0x1;
+ }
+ else
+ {
+ ctx->core_state = ARMV4_5_STATE_ARM;
+ ctx->last_branch &= ~0x3;
+ }
+ }
+
+ return 0;
+}
+
+int etmv1_data(etm_context_t *ctx, int size, u32 *data)
+{
+ int j;
+ u8 buf[4];
+ int retval;
+
+ for (j = 0; j < size; j++)
+ {
+ if ((retval = etmv1_next_packet(ctx, &buf[j], 0)) != 0)
+ return -1;
+ }
+
+ if (size == 8)
+ {
+ LOG_ERROR("TODO: add support for 64-bit values");
+ return -1;
+ }
+ else if (size == 4)
+ *data = target_buffer_get_u32(ctx->target, buf);
+ else if (size == 2)
+ *data = target_buffer_get_u16(ctx->target, buf);
+ else if (size == 1)
+ *data = buf[0];
+ else
+ return -1;
+
+ return 0;
+}
+
+int etmv1_analyze_trace(etm_context_t *ctx, struct command_context_s *cmd_ctx)
+{
+ int retval;
+ arm_instruction_t instruction;
+
+ /* read the trace data if it wasn't read already */
+ if (ctx->trace_depth == 0)
+ ctx->capture_driver->read_trace(ctx);
+
+ /* start at the beginning of the captured trace */
ctx->pipe_index = 0;
ctx->data_index = 0;
+ ctx->data_half = 0;
+
+ /* neither the PC nor the data pointer are valid */
+ ctx->pc_ok = 0;
+ ctx->ptr_ok = 0;
while (ctx->pipe_index < ctx->trace_depth)
{
- switch (ctx->trace_data[ctx->pipe_index].pipestat)
+ u8 pipestat = ctx->trace_data[ctx->pipe_index].pipestat;
+ u32 next_pc = ctx->current_pc;
+ u32 old_data_index = ctx->data_index;
+ u32 old_data_half = ctx->data_half;
+ u32 old_index = ctx->pipe_index;
+ u32 last_instruction = ctx->last_instruction;
+ u32 cycles = 0;
+ int current_pc_ok = ctx->pc_ok;
+
+ if (ctx->trace_data[ctx->pipe_index].flags & ETMV1_TRIGGER_CYCLE)
{
- case STAT_IE:
- case STAT_ID:
- break;
- case STAT_IN:
- DEBUG("IN");
- break;
- case STAT_WT:
- DEBUG("WT");
- break;
- case STAT_BE:
- case STAT_BD:
- break;
- case STAT_TD:
- /* TODO: in cycle accurate trace, we have to count cycles */
- DEBUG("TD");
- break;
+ command_print(cmd_ctx, "--- trigger ---");
+ }
+
+ /* instructions execute in IE/D or BE/D cycles */
+ if ((pipestat == STAT_IE) || (pipestat == STAT_ID))
+ ctx->last_instruction = ctx->pipe_index;
+
+ /* if we don't have a valid pc skip until we reach an indirect branch */
+ if ((!ctx->pc_ok) && (pipestat != STAT_BE))
+ {
+ ctx->pipe_index++;
+ continue;
+ }
+
+ /* any indirect branch could have interrupted instruction flow
+ * - the branch reason code could indicate a trace discontinuity
+ * - a branch to the exception vectors indicates an exception
+ */
+ if ((pipestat == STAT_BE) || (pipestat == STAT_BD))
+ {
+ /* backup current data index, to be able to consume the branch address
+ * before examining data address and values
+ */
+ old_data_index = ctx->data_index;
+ old_data_half = ctx->data_half;
+
+ ctx->last_instruction = ctx->pipe_index;
+
+ if ((retval = etmv1_branch_address(ctx)) != 0)
+ {
+ /* negative return value from etmv1_branch_address means we ran out of packets,
+ * quit analysing the trace */
+ if (retval < 0)
+ break;
+
+ /* a positive return values means the current branch was abandoned,
+ * and a new branch was encountered in cycle ctx->pipe_index + retval;
+ */
+ LOG_WARNING("abandoned branch encountered, correctnes of analysis uncertain");
+ ctx->pipe_index += retval;
+ continue;
+ }
+
+ /* skip over APO cycles */
+ ctx->pipe_index += 2;
+
+ switch (ctx->last_branch_reason)
+ {
+ case 0x0: /* normal PC change */
+ next_pc = ctx->last_branch;
+ break;
+ case 0x1: /* tracing enabled */
+ command_print(cmd_ctx, "--- tracing enabled at 0x%8.8x ---", ctx->last_branch);
+ ctx->current_pc = ctx->last_branch;
+ ctx->pipe_index++;
+ continue;
+ break;
+ case 0x2: /* trace restarted after FIFO overflow */
+ command_print(cmd_ctx, "--- trace restarted after FIFO overflow at 0x%8.8x ---", ctx->last_branch);
+ ctx->current_pc = ctx->last_branch;
+ ctx->pipe_index++;
+ continue;
+ break;
+ case 0x3: /* exit from debug state */
+ command_print(cmd_ctx, "--- exit from debug state at 0x%8.8x ---", ctx->last_branch);
+ ctx->current_pc = ctx->last_branch;
+ ctx->pipe_index++;
+ continue;
+ break;
+ case 0x4: /* periodic synchronization point */
+ next_pc = ctx->last_branch;
+ /* if we had no valid PC prior to this synchronization point,
+ * we have to move on with the next trace cycle
+ */
+ if (!current_pc_ok)
+ {
+ command_print(cmd_ctx, "--- periodic synchronization point at 0x%8.8x ---", next_pc);
+ ctx->current_pc = next_pc;
+ ctx->pipe_index++;
+ continue;
+ }
+ break;
+ default: /* reserved */
+ LOG_ERROR("BUG: branch reason code 0x%x is reserved", ctx->last_branch_reason);
+ exit(-1);
+ break;
+ }
+
+ /* if we got here the branch was a normal PC change
+ * (or a periodic synchronization point, which means the same for that matter)
+ * if we didn't accquire a complete PC continue with the next cycle
+ */
+ if (!ctx->pc_ok)
+ continue;
+
+ /* indirect branch to the exception vector means an exception occured */
+ if (((ctx->last_branch >= 0x0) && (ctx->last_branch <= 0x20))
+ || ((ctx->last_branch >= 0xffff0000) && (ctx->last_branch <= 0xffff0020)))
+ {
+ if ((ctx->last_branch & 0xff) == 0x10)
+ {
+ command_print(cmd_ctx, "data abort");
+ }
+ else
+ {
+ command_print(cmd_ctx, "exception vector 0x%2.2x", ctx->last_branch);
+ ctx->current_pc = ctx->last_branch;
+ ctx->pipe_index++;
+ continue;
+ }
+ }
}
+
+ /* an instruction was executed (or not, depending on the condition flags)
+ * retrieve it from the image for displaying */
+ if (ctx->pc_ok && (pipestat != STAT_WT) && (pipestat != STAT_TD) &&
+ !(((pipestat == STAT_BE) || (pipestat == STAT_BD)) &&
+ ((ctx->last_branch_reason != 0x0) && (ctx->last_branch_reason != 0x4))))
+ {
+ if ((retval = etm_read_instruction(ctx, &instruction)) != ERROR_OK)
+ {
+ /* can't continue tracing with no image available */
+ if (retval == ERROR_TRACE_IMAGE_UNAVAILABLE)
+ {
+ return retval;
+ }
+ else if (retval == ERROR_TRACE_INSTRUCTION_UNAVAILABLE)
+ {
+ /* TODO: handle incomplete images
+ * for now we just quit the analsysis*/
+ return retval;
+ }
+ }
+
+ cycles = old_index - last_instruction;
+ }
+
+ if ((pipestat == STAT_ID) || (pipestat == STAT_BD))
+ {
+ u32 new_data_index = ctx->data_index;
+ u32 new_data_half = ctx->data_half;
+
+ /* in case of a branch with data, the branch target address was consumed before
+ * we temporarily go back to the saved data index */
+ if (pipestat == STAT_BD)
+ {
+ ctx->data_index = old_data_index;
+ ctx->data_half = old_data_half;
+ }
+
+ if (ctx->tracemode & ETMV1_TRACE_ADDR)
+ {
+ u8 packet;
+ int shift = 0;
+
+ do {
+ if ((retval = etmv1_next_packet(ctx, &packet, 0)) != 0)
+ return ERROR_ETM_ANALYSIS_FAILED;
+ ctx->last_ptr &= ~(0x7f << shift);
+ ctx->last_ptr |= (packet & 0x7f) << shift;
+ shift += 7;
+ } while ((packet & 0x80) && (shift < 32));
+
+ if (shift >= 32)
+ ctx->ptr_ok = 1;
+
+ if (ctx->ptr_ok)
+ {
+ command_print(cmd_ctx, "address: 0x%8.8x", ctx->last_ptr);
+ }
+ }
+
+ if (ctx->tracemode & ETMV1_TRACE_DATA)
+ {
+ if ((instruction.type == ARM_LDM) || (instruction.type == ARM_STM))
+ {
+ int i;
+ for (i = 0; i < 16; i++)
+ {
+ if (instruction.info.load_store_multiple.register_list & (1 << i))
+ {
+ u32 data;
+ if (etmv1_data(ctx, 4, &data) != 0)
+ return ERROR_ETM_ANALYSIS_FAILED;
+ command_print(cmd_ctx, "data: 0x%8.8x", data);
+ }
+ }
+ }
+ else if ((instruction.type >= ARM_LDR) && (instruction.type <= ARM_STRH))
+ {
+ u32 data;
+ if (etmv1_data(ctx, arm_access_size(&instruction), &data) != 0)
+ return ERROR_ETM_ANALYSIS_FAILED;
+ command_print(cmd_ctx, "data: 0x%8.8x", data);
+ }
+ }
+
+ /* restore data index after consuming BD address and data */
+ if (pipestat == STAT_BD)
+ {
+ ctx->data_index = new_data_index;
+ ctx->data_half = new_data_half;
+ }
+ }
+
+ /* adjust PC */
+ if ((pipestat == STAT_IE) || (pipestat == STAT_ID))
+ {
+ if (((instruction.type == ARM_B) ||
+ (instruction.type == ARM_BL) ||
+ (instruction.type == ARM_BLX)) &&
+ (instruction.info.b_bl_bx_blx.target_address != -1))
+ {
+ next_pc = instruction.info.b_bl_bx_blx.target_address;
+ }
+ else
+ {
+ next_pc += (ctx->core_state == ARMV4_5_STATE_ARM) ? 4 : 2;
+ }
+ }
+ else if (pipestat == STAT_IN)
+ {
+ next_pc += (ctx->core_state == ARMV4_5_STATE_ARM) ? 4 : 2;
+ }
+
+ if ((pipestat != STAT_TD) && (pipestat != STAT_WT))
+ {
+ char cycles_text[32] = "";
+
+ /* 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)
+ {
+ snprintf(cycles_text, 32, " (%i %s)",
+ cycles,
+ (cycles == 1) ? "cycle" : "cycles");
+ }
+
+ command_print(cmd_ctx, "%s%s%s",
+ instruction.text,
+ (pipestat == STAT_IN) ? " (not executed)" : "",
+ cycles_text);
+
+ ctx->current_pc = next_pc;
+
+ /* packets for an instruction don't start on or before the preceding
+ * functional pipestat (i.e. other than WT or TD)
+ */
+ if (ctx->data_index <= ctx->pipe_index)
+ {
+ ctx->data_index = ctx->pipe_index + 1;
+ ctx->data_half = 0;
+ }
+ }
+
+ ctx->pipe_index += 1;
}
return ERROR_OK;
tracemode = arm7_9->etm_ctx->tracemode;
- if (argc == 3)
+ if (argc == 4)
{
if (strcmp(args[0], "none") == 0)
{
command_print(cmd_ctx, "invalid option '%s'", args[2]);
return ERROR_OK;
}
+
+ if (strcmp(args[3], "enable") == 0)
+ {
+ tracemode |= ETMV1_BRANCH_OUTPUT;
+ }
+ else if (strcmp(args[3], "disable") == 0)
+ {
+ tracemode |= 0;
+ }
+ else
+ {
+ command_print(cmd_ctx, "invalid option '%s'", args[2]);
+ return ERROR_OK;
+ }
}
else if (argc != 0)
{
- command_print(cmd_ctx, "usage: configure trace mode <none|data|address|all> <context id bits> <enable|disable cycle accurate>");
+ command_print(cmd_ctx, "usage: configure trace mode <none|data|address|all> <context id bits> <cycle accurate> <branch output>");
return ERROR_OK;
}
{
command_print(cmd_ctx, "cycle-accurate tracing disabled");
}
+
+ if (tracemode & ETMV1_BRANCH_OUTPUT)
+ {
+ command_print(cmd_ctx, "full branch address output enabled");
+ }
+ else
+ {
+ command_print(cmd_ctx, "full branch address output disabled");
+ }
/* only update ETM_CTRL register if tracemode changed */
if (arm7_9->etm_ctx->tracemode != tracemode)
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);
arm7_9->etm_ctx->tracemode = tracemode;
if (arm7_9->etm_ctx->trace_depth > 0)
{
free(arm7_9->etm_ctx->trace_data);
+ arm7_9->etm_ctx->trace_data = NULL;
}
arm7_9->etm_ctx->trace_depth = 0;
}
if (argc != 5)
{
- ERROR("incomplete 'etm config <target> <port_width> <port_mode> <clocking> <capture_driver>' command");
+
LOG_ERROR("incomplete 'etm config <target> <port_width> <port_mode> <clocking> <capture_driver>' command");
exit(-1);
}
if (!target)
{
- ERROR("target number '%s' not defined", args[0]);
+ LOG_ERROR("target number '%s' not defined", args[0]);
exit(-1);
}
}
}
+ if (!etm_capture_drivers[i])
+ {
+ /* no supported capture driver found, don't register an ETM */
+ free(etm_ctx);
+ LOG_ERROR("trace capture driver '%s' not found", args[4]);
+ return ERROR_OK;
+ }
+
+ etm_ctx->target = target;
+ etm_ctx->trigger_percent = 50;
etm_ctx->trace_data = NULL;
etm_ctx->trace_depth = 0;
etm_ctx->portmode = portmode;
etm_ctx->tracemode = 0x0;
etm_ctx->core_state = ARMV4_5_STATE_ARM;
+ etm_ctx->image = NULL;
etm_ctx->pipe_index = 0;
etm_ctx->data_index = 0;
etm_ctx->current_pc = 0x0;
etm_ctx->pc_ok = 0;
etm_ctx->last_branch = 0x0;
+ etm_ctx->last_branch_reason = 0x0;
etm_ctx->last_ptr = 0x0;
+ etm_ctx->ptr_ok = 0x0;
etm_ctx->context_id = 0x0;
+ etm_ctx->last_instruction = 0;
arm7_9->etm_ctx = etm_ctx;
return ERROR_OK;
}
+int handle_etm_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ target_t *target;
+ armv4_5_common_t *armv4_5;
+ arm7_9_common_t *arm7_9;
+ reg_t *etm_config_reg;
+ reg_t *etm_sys_config_reg;
+
+ int max_port_size;
+
+ target = get_current_target(cmd_ctx);
+
+ if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
+ {
+ command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
+ return ERROR_OK;
+ }
+
+ if (!arm7_9->etm_ctx)
+ {
+ command_print(cmd_ctx, "current target doesn't have an ETM configured");
+ return ERROR_OK;
+ }
+
+ etm_config_reg = &arm7_9->etm_ctx->reg_cache->reg_list[ETM_CONFIG];
+ etm_sys_config_reg = &arm7_9->etm_ctx->reg_cache->reg_list[ETM_SYS_CONFIG];
+
+ etm_get_reg(etm_config_reg);
+ command_print(cmd_ctx, "pairs of address comparators: %i", buf_get_u32(etm_config_reg->value, 0, 4));
+ command_print(cmd_ctx, "pairs of data comparators: %i", buf_get_u32(etm_config_reg->value, 4, 4));
+ command_print(cmd_ctx, "memory map decoders: %i", buf_get_u32(etm_config_reg->value, 8, 5));
+ command_print(cmd_ctx, "number of counters: %i", buf_get_u32(etm_config_reg->value, 13, 3));
+ command_print(cmd_ctx, "sequencer %spresent",
+ (buf_get_u32(etm_config_reg->value, 16, 1) == 1) ? "" : "not ");
+ command_print(cmd_ctx, "number of ext. inputs: %i", buf_get_u32(etm_config_reg->value, 17, 3));
+ command_print(cmd_ctx, "number of ext. outputs: %i", buf_get_u32(etm_config_reg->value, 20, 3));
+ command_print(cmd_ctx, "FIFO full %spresent",
+ (buf_get_u32(etm_config_reg->value, 23, 1) == 1) ? "" : "not ");
+ command_print(cmd_ctx, "protocol version: %i", buf_get_u32(etm_config_reg->value, 28, 3));
+
+ etm_get_reg(etm_sys_config_reg);
+
+ switch (buf_get_u32(etm_sys_config_reg->value, 0, 3))
+ {
+ case 0:
+ max_port_size = 4;
+ break;
+ case 1:
+ max_port_size = 8;
+ break;
+ case 2:
+ max_port_size = 16;
+ break;
+ default:
+ LOG_ERROR("Illegal max_port_size");
+ exit(-1);
+ }
+ command_print(cmd_ctx, "max. port size: %i", max_port_size);
+
+ command_print(cmd_ctx, "half-rate clocking %ssupported",
+ (buf_get_u32(etm_sys_config_reg->value, 3, 1) == 1) ? "" : "not ");
+ command_print(cmd_ctx, "full-rate clocking %ssupported",
+ (buf_get_u32(etm_sys_config_reg->value, 4, 1) == 1) ? "" : "not ");
+ command_print(cmd_ctx, "normal trace format %ssupported",
+ (buf_get_u32(etm_sys_config_reg->value, 5, 1) == 1) ? "" : "not ");
+ command_print(cmd_ctx, "multiplex trace format %ssupported",
+ (buf_get_u32(etm_sys_config_reg->value, 6, 1) == 1) ? "" : "not ");
+ command_print(cmd_ctx, "demultiplex trace format %ssupported",
+ (buf_get_u32(etm_sys_config_reg->value, 7, 1) == 1) ? "" : "not ");
+ command_print(cmd_ctx, "FIFO full %ssupported",
+ (buf_get_u32(etm_sys_config_reg->value, 8, 1) == 1) ? "" : "not ");
+
+ return ERROR_OK;
+}
+
int handle_etm_status_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
target_t *target;
return ERROR_OK;
}
+int handle_etm_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ target_t *target;
+ armv4_5_common_t *armv4_5;
+ arm7_9_common_t *arm7_9;
+ etm_context_t *etm_ctx;
+
+ if (argc < 1)
+ {
+ command_print(cmd_ctx, "usage: etm image <file> [base address] [type]");
+ return ERROR_OK;
+ }
+
+ target = get_current_target(cmd_ctx);
+
+ if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
+ {
+ command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
+ return ERROR_OK;
+ }
+
+ if (!(etm_ctx = arm7_9->etm_ctx))
+ {
+ command_print(cmd_ctx, "current target doesn't have an ETM configured");
+ return ERROR_OK;
+ }
+
+ if (etm_ctx->image)
+ {
+ image_close(etm_ctx->image);
+ free(etm_ctx->image);
+ command_print(cmd_ctx, "previously loaded image found and closed");
+ }
+
+ etm_ctx->image = malloc(sizeof(image_t));
+ etm_ctx->image->base_address_set = 0;
+ etm_ctx->image->start_address_set = 0;
+
+ /* a base address isn't always necessary, default to 0x0 (i.e. don't relocate) */
+ if (argc >= 2)
+ {
+ etm_ctx->image->base_address_set = 1;
+ etm_ctx->image->base_address = strtoul(args[1], NULL, 0);
+ }
+ else
+ {
+ etm_ctx->image->base_address_set = 0;
+ }
+
+ if (image_open(etm_ctx->image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK)
+ {
+ free(etm_ctx->image);
+ etm_ctx->image = NULL;
+ return ERROR_OK;
+ }
+
+ return ERROR_OK;
+}
+
int handle_etm_dump_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
fileio_t file;
armv4_5_common_t *armv4_5;
arm7_9_common_t *arm7_9;
etm_context_t *etm_ctx;
- u32 size_written;
+ int i;
if (argc != 1)
{
if (fileio_open(&file, args[0], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK)
{
- command_print(cmd_ctx, "file open error: %s", file.error_str);
return ERROR_OK;
}
- //fileio_write(&file, etm_ctx->trace_depth * 4, (u8*)etm_ctx->trace_data, &size_written);
+ fileio_write_u32(&file, etm_ctx->capture_status);
+ fileio_write_u32(&file, etm_ctx->portmode);
+ fileio_write_u32(&file, etm_ctx->tracemode);
+ fileio_write_u32(&file, etm_ctx->trace_depth);
+
+ for (i = 0; i < etm_ctx->trace_depth; i++)
+ {
+ fileio_write_u32(&file, etm_ctx->trace_data[i].pipestat);
+ fileio_write_u32(&file, etm_ctx->trace_data[i].packet);
+ fileio_write_u32(&file, etm_ctx->trace_data[i].flags);
+ }
fileio_close(&file);
armv4_5_common_t *armv4_5;
arm7_9_common_t *arm7_9;
etm_context_t *etm_ctx;
- u32 size_read;
+ int i;
if (argc != 1)
{
if (fileio_open(&file, args[0], FILEIO_READ, FILEIO_BINARY) != ERROR_OK)
{
- command_print(cmd_ctx, "file open error: %s", file.error_str);
return ERROR_OK;
}
if (file.size % 4)
{
command_print(cmd_ctx, "size isn't a multiple of 4, no valid trace data");
+ fileio_close(&file);
return ERROR_OK;
}
if (etm_ctx->trace_depth > 0)
{
free(etm_ctx->trace_data);
+ etm_ctx->trace_data = NULL;
+ }
+
+ fileio_read_u32(&file, &etm_ctx->capture_status);
+ fileio_read_u32(&file, &etm_ctx->portmode);
+ fileio_read_u32(&file, &etm_ctx->tracemode);
+ fileio_read_u32(&file, &etm_ctx->trace_depth);
+
+ etm_ctx->trace_data = malloc(sizeof(etmv1_trace_data_t) * etm_ctx->trace_depth);
+ if(etm_ctx->trace_data == NULL)
+ {
+ command_print(cmd_ctx, "not enough memory to perform operation");
+ fileio_close(&file);
+ return ERROR_OK;
}
- //fileio_read(&file, file.size, (u8*)etm_ctx->trace_data, &size_read);
- etm_ctx->trace_depth = file.size / 4;
- etm_ctx->capture_status = TRACE_COMPLETED;
+ for (i = 0; i < etm_ctx->trace_depth; i++)
+ {
+ u32 pipestat, packet, flags;
+ fileio_read_u32(&file, &pipestat);
+ fileio_read_u32(&file, &packet);
+ fileio_read_u32(&file, &flags);
+ etm_ctx->trace_data[i].pipestat = pipestat & 0xff;
+ etm_ctx->trace_data[i].packet = packet & 0xffff;
+ etm_ctx->trace_data[i].flags = flags;
+ }
fileio_close(&file);
return ERROR_OK;
}
+int handle_etm_trigger_percent_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ target_t *target;
+ armv4_5_common_t *armv4_5;
+ arm7_9_common_t *arm7_9;
+ etm_context_t *etm_ctx;
+
+ target = get_current_target(cmd_ctx);
+
+ if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
+ {
+ command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
+ return ERROR_OK;
+ }
+
+ if (!(etm_ctx = arm7_9->etm_ctx))
+ {
+ command_print(cmd_ctx, "current target doesn't have an ETM configured");
+ return ERROR_OK;
+ }
+
+ if (argc > 0)
+ {
+ u32 new_value = strtoul(args[0], NULL, 0);
+
+ if ((new_value < 2) || (new_value > 100))
+ {
+ command_print(cmd_ctx, "valid settings are 2% to 100%");
+ }
+ else
+ {
+ etm_ctx->trigger_percent = new_value;
+ }
+ }
+
+ command_print(cmd_ctx, "%i percent of the tracebuffer reserved for after the trigger", etm_ctx->trigger_percent);
+
+ return ERROR_OK;
+}
+
int handle_etm_start_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
target_t *target;
if (arm7_9->etm_ctx->trace_depth > 0)
{
free(arm7_9->etm_ctx->trace_data);
+ arm7_9->etm_ctx->trace_data = NULL;
}
arm7_9->etm_ctx->trace_depth = 0;
return ERROR_OK;
}
-int handle_etm_analyse_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+int handle_etm_analyze_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
target_t *target;
armv4_5_common_t *armv4_5;
arm7_9_common_t *arm7_9;
etm_context_t *etm_ctx;
+ int retval;
target = get_current_target(cmd_ctx);
return ERROR_OK;
}
- etmv1_analyse_trace(etm_ctx);
+ if ((retval = etmv1_analyze_trace(etm_ctx, cmd_ctx)) != ERROR_OK)
+ {
+ switch(retval)
+ {
+ case ERROR_ETM_ANALYSIS_FAILED:
+ command_print(cmd_ctx, "further analysis failed (corrupted trace data or just end of data");
+ break;
+ case ERROR_TRACE_INSTRUCTION_UNAVAILABLE:
+ command_print(cmd_ctx, "no instruction for current address available, analysis aborted");
+ break;
+ case ERROR_TRACE_IMAGE_UNAVAILABLE:
+ command_print(cmd_ctx, "no image available for trace analysis");
+ break;
+ default:
+ command_print(cmd_ctx, "unknown error: %i", retval);
+ }
+ }
return ERROR_OK;
}
int etm_register_user_commands(struct command_context_s *cmd_ctx)
{
register_command(cmd_ctx, etm_cmd, "tracemode", handle_etm_tracemode_command,
- COMMAND_EXEC, "configure trace mode <none|data|address|all> <context id bits> <enable|disable cycle accurate>");
+ COMMAND_EXEC, "configure trace mode <none|data|address|all> <context id bits> <cycle accurate> <branch output");
+ register_command(cmd_ctx, etm_cmd, "info", handle_etm_info_command,
+ COMMAND_EXEC, "display info about the current target's ETM");
+
+ register_command(cmd_ctx, etm_cmd, "trigger_percent <percent>", handle_etm_trigger_percent_command,
+ COMMAND_EXEC, "amount (<percent>) of trace buffer to be filled after the trigger occured");
register_command(cmd_ctx, etm_cmd, "status", handle_etm_status_command,
COMMAND_EXEC, "display current target's ETM status");
register_command(cmd_ctx, etm_cmd, "start", handle_etm_start_command,
register_command(cmd_ctx, etm_cmd, "stop", handle_etm_stop_command,
COMMAND_EXEC, "stop ETM trace collection");
- register_command(cmd_ctx, etm_cmd, "analyze", handle_etm_stop_command,
+ register_command(cmd_ctx, etm_cmd, "analyze", handle_etm_analyze_command,
COMMAND_EXEC, "anaylze collected ETM trace");
+ register_command(cmd_ctx, etm_cmd, "image", handle_etm_image_command,
+ COMMAND_EXEC, "load image from <file> [base address]");
+
register_command(cmd_ctx, etm_cmd, "dump", handle_etm_dump_command,
COMMAND_EXEC, "dump captured trace data <file>");
register_command(cmd_ctx, etm_cmd, "load", handle_etm_load_command,
projects / fw / openocd / blobdiff