int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc);
+int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
/* targets
*/
int retval = ERROR_OK;
target_t *target;
struct timeval timeout, now;
-
+
+ jtag->speed(jtag_speed);
+
/* prepare reset_halt where necessary */
target = targets;
while (target)
target = target->next;
}
jtag_execute_queue();
-
+
/* Wait for reset to complete, maximum 5 seconds. */
gettimeofday(&timeout, NULL);
timeval_add_time(&timeout, 5, 0);
{
gettimeofday(&now, NULL);
- target_call_timer_callbacks();
+ target_call_timer_callbacks_now();
target = targets;
while (target)
/* We want any events to be processed before the prompt */
- target_call_timer_callbacks();
+ target_call_timer_callbacks_now();
+
+ jtag->speed(jtag_speed_post_reset);
return retval;
}
return ERROR_OK;
}
+int target_call_timer_callbacks_now()
+{
+ /* TODO: this should invoke the timer callbacks now. This is used to ensure that
+ * any outstanding polls, etc. are in fact invoked before a synchronous command
+ * completes.
+ */
+ return target_call_timer_callbacks();
+}
+
+
int target_alloc_working_area(struct target_s *target, u32 size, working_area_t **area)
{
working_area_t *c = target->working_areas;
register_command(cmd_ctx, NULL, "run_and_halt_time", handle_run_and_halt_time_command, COMMAND_CONFIG, "<target> <run time ms>");
register_command(cmd_ctx, NULL, "working_area", handle_working_area_command, COMMAND_ANY, "working_area <target#> <address> <size> <'backup'|'nobackup'> [virtual address]");
register_command(cmd_ctx, NULL, "virt2phys", handle_virt2phys_command, COMMAND_ANY, "virt2phys <virtual address>");
+ register_command(cmd_ctx, NULL, "profile", handle_profile_command, COMMAND_EXEC, "PRELIMINARY! - profile <seconds> <gmon.out>");
return ERROR_OK;
}
}
target = get_target_by_num(strtoul(args[0], NULL, 0));
-
if (!target)
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
target = get_target_by_num(strtoul(args[0], NULL, 0));
-
if (!target)
{
return ERROR_COMMAND_SYNTAX_ERROR;
if (argc == 0)
{
target->type->poll(target);
- target_arch_state(target);
+ target_arch_state(target);
}
else
{
{
target_t *target = get_current_target(cmd_ctx);
target->type->poll(target);
- target_call_timer_callbacks();
+ target_call_timer_callbacks_now();
}
static int wait_state(struct command_context_s *cmd_ctx, char *cmd, enum target_state state, int ms)
{
if ((retval=target->type->poll(target))!=ERROR_OK)
return retval;
- target_call_timer_callbacks();
+ target_call_timer_callbacks_now();
if (target->state == state)
{
break;
DEBUG("-");
if ((retval = target->type->halt(target)) != ERROR_OK)
- {
- return retval;
- }
+ {
+ return retval;
+ }
return handle_wait_halt_command(cmd_ctx, cmd, args, argc);
}
buffer = calloc(count, size);
retval = target->type->read_memory(target, address, size, count, buffer);
- if (retval != ERROR_OK)
+ if (retval == ERROR_OK)
{
- switch (retval)
+ output_len = 0;
+
+ for (i = 0; i < count; i++)
{
- case ERROR_TARGET_UNALIGNED_ACCESS:
- command_print(cmd_ctx, "error: address not aligned");
- break;
- case ERROR_TARGET_NOT_HALTED:
- command_print(cmd_ctx, "error: target must be halted for memory accesses");
- break;
- case ERROR_TARGET_DATA_ABORT:
- command_print(cmd_ctx, "error: access caused data abort, system possibly corrupted");
- break;
- default:
- command_print(cmd_ctx, "error: unknown error");
- break;
+ if (i%line_modulo == 0)
+ output_len += snprintf(output + output_len, 128 - output_len, "0x%8.8x: ", address + (i*size));
+
+ switch (size)
+ {
+ case 4:
+ output_len += snprintf(output + output_len, 128 - output_len, "%8.8x ", target_buffer_get_u32(target, &buffer[i*4]));
+ break;
+ case 2:
+ output_len += snprintf(output + output_len, 128 - output_len, "%4.4x ", target_buffer_get_u16(target, &buffer[i*2]));
+ break;
+ case 1:
+ output_len += snprintf(output + output_len, 128 - output_len, "%2.2x ", buffer[i*1]);
+ break;
+ }
+
+ if ((i%line_modulo == line_modulo-1) || (i == count - 1))
+ {
+ command_print(cmd_ctx, output);
+ output_len = 0;
+ }
}
- return ERROR_OK;
- }
-
- output_len = 0;
-
- for (i = 0; i < count; i++)
+ } else
{
- if (i%line_modulo == 0)
- output_len += snprintf(output + output_len, 128 - output_len, "0x%8.8x: ", address + (i*size));
-
- switch (size)
- {
- case 4:
- output_len += snprintf(output + output_len, 128 - output_len, "%8.8x ", target_buffer_get_u32(target, &buffer[i*4]));
- break;
- case 2:
- output_len += snprintf(output + output_len, 128 - output_len, "%4.4x ", target_buffer_get_u16(target, &buffer[i*2]));
- break;
- case 1:
- output_len += snprintf(output + output_len, 128 - output_len, "%2.2x ", buffer[i*1]);
- break;
- }
-
- if ((i%line_modulo == line_modulo-1) || (i == count - 1))
- {
- command_print(cmd_ctx, output);
- output_len = 0;
- }
+ ERROR("Failure examining memory");
}
free(buffer);
default:
return ERROR_OK;
}
-
- switch (retval)
+ if (retval!=ERROR_OK)
{
- case ERROR_TARGET_UNALIGNED_ACCESS:
- command_print(cmd_ctx, "error: address not aligned");
- break;
- case ERROR_TARGET_DATA_ABORT:
- command_print(cmd_ctx, "error: access caused data abort, system possibly corrupted");
- break;
- case ERROR_TARGET_NOT_HALTED:
- command_print(cmd_ctx, "error: target must be halted for memory accesses");
- break;
- case ERROR_OK:
- break;
- default:
- command_print(cmd_ctx, "error: unknown error");
- break;
+ ERROR("Failure examining memory");
}
return ERROR_OK;
image_calculate_checksum( buffer, buf_cnt, &checksum );
retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
-
if( retval != ERROR_OK )
{
free(buffer);
count /= 4;
}
retval = target->type->read_memory(target, image.sections[i].base_address, size, count, data);
-
if (retval == ERROR_OK)
{
int t;
if ((retval = breakpoint_add(target, strtoul(args[0], NULL, 0), length, hw)) != ERROR_OK)
{
- switch (retval)
- {
- case ERROR_TARGET_NOT_HALTED:
- command_print(cmd_ctx, "target must be halted to set breakpoints");
- break;
- case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
- command_print(cmd_ctx, "no more breakpoints available");
- break;
- default:
- command_print(cmd_ctx, "unknown error, breakpoint not set");
- break;
- }
+ ERROR("Failure setting breakpoints");
}
else
{
if ((retval = watchpoint_add(target, strtoul(args[0], NULL, 0),
strtoul(args[1], NULL, 0), type, data_value, data_mask)) != ERROR_OK)
{
- switch (retval)
- {
- case ERROR_TARGET_NOT_HALTED:
- command_print(cmd_ctx, "target must be halted to set watchpoints");
- break;
- case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
- command_print(cmd_ctx, "no more watchpoints available");
- break;
- default:
- command_print(cmd_ctx, "unknown error, watchpoint not set");
- break;
- }
+ ERROR("Failure setting breakpoints");
}
}
else
}
return retval;
}
+static void writeLong(FILE *f, int l)
+{
+ int i;
+ for (i=0; i<4; i++)
+ {
+ char c=(l>>(i*8))&0xff;
+ fwrite(&c, 1, 1, f);
+ }
+
+}
+static void writeString(FILE *f, char *s)
+{
+ fwrite(s, 1, strlen(s), f);
+}
+
+
+
+// Dump a gmon.out histogram file.
+static void writeGmon(u32 *samples, int sampleNum, char *filename)
+{
+ int i;
+ FILE *f=fopen(filename, "w");
+ if (f==NULL)
+ return;
+ fwrite("gmon", 1, 4, f);
+ writeLong(f, 0x00000001); // Version
+ writeLong(f, 0); // padding
+ writeLong(f, 0); // padding
+ writeLong(f, 0); // padding
+
+ fwrite("", 1, 1, f); // GMON_TAG_TIME_HIST
+
+ // figure out bucket size
+ u32 min=samples[0];
+ u32 max=samples[0];
+ for (i=0; i<sampleNum; i++)
+ {
+ if (min>samples[i])
+ {
+ min=samples[i];
+ }
+ if (max<samples[i])
+ {
+ max=samples[i];
+ }
+ }
+
+ int addressSpace=(max-min+1);
+
+ static int const maxBuckets=256*1024; // maximum buckets.
+ int length=addressSpace;
+ if (length > maxBuckets)
+ {
+ length=maxBuckets;
+ }
+ int *buckets=malloc(sizeof(int)*length);
+ if (buckets==NULL)
+ {
+ fclose(f);
+ return;
+ }
+ memset(buckets, 0, sizeof(int)*length);
+ for (i=0; i<sampleNum;i++)
+ {
+ u32 address=samples[i];
+ long long a=address-min;
+ long long b=length-1;
+ long long c=addressSpace-1;
+ int index=(a*b)/c; // danger!!!! int32 overflows
+ buckets[index]++;
+ }
+
+ // append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr))
+ writeLong(f, min); // low_pc
+ writeLong(f, max); // high_pc
+ writeLong(f, length); // # of samples
+ writeLong(f, 64000000); // 64MHz
+ writeString(f, "seconds");
+ for (i=0; i<(15-strlen("seconds")); i++)
+ {
+ fwrite("", 1, 1, f); // padding
+ }
+ writeString(f, "s");
+
+// append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size)
+
+ char *data=malloc(2*length);
+ if (data!=NULL)
+ {
+ for (i=0; i<length;i++)
+ {
+ int val;
+ val=buckets[i];
+ if (val>65535)
+ {
+ val=65535;
+ }
+ data[i*2]=val&0xff;
+ data[i*2+1]=(val>>8)&0xff;
+ }
+ free(buckets);
+ fwrite(data, 1, length*2, f);
+ free(data);
+ } else
+ {
+ free(buckets);
+ }
+
+ fclose(f);
+}
+
+/* profiling samples the CPU PC as quickly as OpenOCD is able, which will be used as a random sampling of PC */
+int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ target_t *target = get_current_target(cmd_ctx);
+ struct timeval timeout, now;
+
+ gettimeofday(&timeout, NULL);
+ if (argc!=2)
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+ char *end;
+ timeval_add_time(&timeout, strtoul(args[0], &end, 0), 0);
+ if (*end)
+ {
+ return ERROR_OK;
+ }
+
+ command_print(cmd_ctx, "Starting profiling. Halting and resuming the target as often as we can...");
+
+ static const int maxSample=10000;
+ u32 *samples=malloc(sizeof(u32)*maxSample);
+ if (samples==NULL)
+ return ERROR_OK;
+
+ int numSamples=0;
+ int retval=ERROR_OK;
+ // hopefully it is safe to cache! We want to stop/restart as quickly as possible.
+ reg_t *reg = register_get_by_name(target->reg_cache, "pc", 1);
+
+ for (;;)
+ {
+ target->type->poll(target);
+ if (target->state == TARGET_HALTED)
+ {
+ u32 t=*((u32 *)reg->value);
+ samples[numSamples++]=t;
+ retval = target->type->resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
+ target->type->poll(target);
+ usleep(10*1000); // sleep 10ms, i.e. <100 samples/second.
+ } else if (target->state == TARGET_RUNNING)
+ {
+ // We want to quickly sample the PC.
+ target->type->halt(target);
+ } else
+ {
+ command_print(cmd_ctx, "Target not halted or running");
+ retval=ERROR_OK;
+ break;
+ }
+ if (retval!=ERROR_OK)
+ {
+ break;
+ }
+
+ gettimeofday(&now, NULL);
+ if ((numSamples>=maxSample) || ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
+ {
+ command_print(cmd_ctx, "Profiling completed. %d samples.", numSamples);
+ target->type->poll(target);
+ if (target->state == TARGET_HALTED)
+ {
+ target->type->resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
+ }
+ target->type->poll(target);
+ writeGmon(samples, numSamples, args[1]);
+ command_print(cmd_ctx, "Wrote %s", args[1]);
+ break;
+ }
+ }
+ free(samples);
+
+ return ERROR_OK;
+}
+
Code Review / openocd.git / blobdiff