X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Ftarget%2Ftarget.c;h=db676b970537a032f353cd083083dfe0a14feae2;hp=26607c578259023c3cf87d65f32990019a5447c6;hb=9b6de72c2ba149ac6f3e11d6d0dd3030bf7b19f9;hpb=813f4a5411af9a397d6e9bbc682a43738b06baeb diff --git a/src/target/target.c b/src/target/target.c index 26607c5782..db676b9705 100644 --- a/src/target/target.c +++ b/src/target/target.c @@ -87,7 +87,7 @@ extern struct target_type dsp563xx_target; extern struct target_type dsp5680xx_target; extern struct target_type testee_target; extern struct target_type avr32_ap7k_target; -extern struct target_type stm32_stlink_target; +extern struct target_type hla_target; static struct target_type *target_types[] = { &arm7tdmi_target, @@ -110,7 +110,7 @@ static struct target_type *target_types[] = { &dsp5680xx_target, &testee_target, &avr32_ap7k_target, - &stm32_stlink_target, + &hla_target, NULL, }; @@ -156,8 +156,6 @@ static const char *target_strerror_safe(int err) } static const Jim_Nvp nvp_target_event[] = { - { .value = TARGET_EVENT_OLD_gdb_program_config , .name = "old-gdb_program_config" }, - { .value = TARGET_EVENT_OLD_pre_resume , .name = "old-pre_resume" }, { .value = TARGET_EVENT_GDB_HALT, .name = "gdb-halt" }, { .value = TARGET_EVENT_HALTED, .name = "halted" }, @@ -168,10 +166,7 @@ static const Jim_Nvp nvp_target_event[] = { { .name = "gdb-start", .value = TARGET_EVENT_GDB_START }, { .name = "gdb-end", .value = TARGET_EVENT_GDB_END }, - /* historical name */ - - { .value = TARGET_EVENT_RESET_START, .name = "reset-start" }, - + { .value = TARGET_EVENT_RESET_START, .name = "reset-start" }, { .value = TARGET_EVENT_RESET_ASSERT_PRE, .name = "reset-assert-pre" }, { .value = TARGET_EVENT_RESET_ASSERT, .name = "reset-assert" }, { .value = TARGET_EVENT_RESET_ASSERT_POST, .name = "reset-assert-post" }, @@ -199,10 +194,6 @@ static const Jim_Nvp nvp_target_event[] = { { .value = TARGET_EVENT_GDB_FLASH_ERASE_START, .name = "gdb-flash-erase-start" }, { .value = TARGET_EVENT_GDB_FLASH_ERASE_END , .name = "gdb-flash-erase-end" }, - { .value = TARGET_EVENT_RESUME_START, .name = "resume-start" }, - { .value = TARGET_EVENT_RESUMED , .name = "resume-ok" }, - { .value = TARGET_EVENT_RESUME_END , .name = "resume-end" }, - { .name = NULL, .value = -1 } }; @@ -388,9 +379,9 @@ struct target *get_target(const char *id) /* try as tcltarget name */ for (target = all_targets; target; target = target->next) { - if (target->cmd_name == NULL) + if (target_name(target) == NULL) continue; - if (strcmp(id, target->cmd_name) == 0) + if (strcmp(id, target_name(target)) == 0) return target; } @@ -404,7 +395,7 @@ struct target *get_target(const char *id) for (target = all_targets; target; target = target->next) { if (target->target_number == (int)num) { LOG_WARNING("use '%s' as target identifier, not '%u'", - target->cmd_name, num); + target_name(target), num); return target; } } @@ -527,6 +518,8 @@ int target_resume(struct target *target, int current, uint32_t address, int hand return ERROR_FAIL; } + target_call_event_callbacks(target, TARGET_EVENT_RESUME_START); + /* note that resume *must* be asynchronous. The CPU can halt before * we poll. The CPU can even halt at the current PC as a result of * a software breakpoint being inserted by (a bug?) the application. @@ -535,6 +528,8 @@ int target_resume(struct target *target, int current, uint32_t address, int hand if (retval != ERROR_OK) return retval; + target_call_event_callbacks(target, TARGET_EVENT_RESUME_END); + return retval; } @@ -616,9 +611,17 @@ static int jtag_enable_callback(enum jtag_event event, void *priv) return ERROR_OK; jtag_unregister_event_callback(jtag_enable_callback, target); - return target_examine_one(target); -} + target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_START); + + int retval = target_examine_one(target); + if (retval != ERROR_OK) + return retval; + + target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_END); + + return retval; +} /* Targets that correctly implement init + examine, i.e. * no communication with target during init: @@ -637,49 +640,35 @@ int target_examine(void) target); continue; } + + target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_START); + retval = target_examine_one(target); if (retval != ERROR_OK) return retval; + + target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_END); } return retval; } + const char *target_type_name(struct target *target) { return target->type->name; } -static int target_write_memory_imp(struct target *target, uint32_t address, - uint32_t size, uint32_t count, const uint8_t *buffer) +static int target_soft_reset_halt(struct target *target) { if (!target_was_examined(target)) { LOG_ERROR("Target not examined yet"); return ERROR_FAIL; } - return target->type->write_memory_imp(target, address, size, count, buffer); -} - -static int target_read_memory_imp(struct target *target, uint32_t address, - uint32_t size, uint32_t count, uint8_t *buffer) -{ - if (!target_was_examined(target)) { - LOG_ERROR("Target not examined yet"); - return ERROR_FAIL; - } - return target->type->read_memory_imp(target, address, size, count, buffer); -} - -static int target_soft_reset_halt_imp(struct target *target) -{ - if (!target_was_examined(target)) { - LOG_ERROR("Target not examined yet"); - return ERROR_FAIL; - } - if (!target->type->soft_reset_halt_imp) { + if (!target->type->soft_reset_halt) { LOG_ERROR("Target %s does not support soft_reset_halt", target_name(target)); return ERROR_FAIL; } - return target->type->soft_reset_halt_imp(target); + return target->type->soft_reset_halt(target); } /** @@ -796,28 +785,186 @@ done: return retval; } +/** + * Executes a target-specific native code algorithm in the target. + * It differs from target_run_algorithm in that the algorithm is asynchronous. + * Because of this it requires an compliant algorithm: + * see contrib/loaders/flash/stm32f1x.S for example. + * + * @param target used to run the algorithm + */ + +int target_run_flash_async_algorithm(struct target *target, + uint8_t *buffer, uint32_t count, int block_size, + int num_mem_params, struct mem_param *mem_params, + int num_reg_params, struct reg_param *reg_params, + uint32_t buffer_start, uint32_t buffer_size, + uint32_t entry_point, uint32_t exit_point, void *arch_info) +{ + int retval; + int timeout = 0; + + /* Set up working area. First word is write pointer, second word is read pointer, + * rest is fifo data area. */ + uint32_t wp_addr = buffer_start; + uint32_t rp_addr = buffer_start + 4; + uint32_t fifo_start_addr = buffer_start + 8; + uint32_t fifo_end_addr = buffer_start + buffer_size; + + uint32_t wp = fifo_start_addr; + uint32_t rp = fifo_start_addr; + + /* validate block_size is 2^n */ + assert(!block_size || !(block_size & (block_size - 1))); + + retval = target_write_u32(target, wp_addr, wp); + if (retval != ERROR_OK) + return retval; + retval = target_write_u32(target, rp_addr, rp); + if (retval != ERROR_OK) + return retval; + + /* Start up algorithm on target and let it idle while writing the first chunk */ + retval = target_start_algorithm(target, num_mem_params, mem_params, + num_reg_params, reg_params, + entry_point, + exit_point, + arch_info); + + if (retval != ERROR_OK) { + LOG_ERROR("error starting target flash write algorithm"); + return retval; + } + + while (count > 0) { + + retval = target_read_u32(target, rp_addr, &rp); + if (retval != ERROR_OK) { + LOG_ERROR("failed to get read pointer"); + break; + } + + LOG_DEBUG("count 0x%" PRIx32 " wp 0x%" PRIx32 " rp 0x%" PRIx32, count, wp, rp); + + if (rp == 0) { + LOG_ERROR("flash write algorithm aborted by target"); + retval = ERROR_FLASH_OPERATION_FAILED; + break; + } + + if ((rp & (block_size - 1)) || rp < fifo_start_addr || rp >= fifo_end_addr) { + LOG_ERROR("corrupted fifo read pointer 0x%" PRIx32, rp); + break; + } + + /* Count the number of bytes available in the fifo without + * crossing the wrap around. Make sure to not fill it completely, + * because that would make wp == rp and that's the empty condition. */ + uint32_t thisrun_bytes; + if (rp > wp) + thisrun_bytes = rp - wp - block_size; + else if (rp > fifo_start_addr) + thisrun_bytes = fifo_end_addr - wp; + else + thisrun_bytes = fifo_end_addr - wp - block_size; + + if (thisrun_bytes == 0) { + /* Throttle polling a bit if transfer is (much) faster than flash + * programming. The exact delay shouldn't matter as long as it's + * less than buffer size / flash speed. This is very unlikely to + * run when using high latency connections such as USB. */ + alive_sleep(10); + + /* to stop an infinite loop on some targets check and increment a timeout + * this issue was observed on a stellaris using the new ICDI interface */ + if (timeout++ >= 500) { + LOG_ERROR("timeout waiting for algorithm, a target reset is recommended"); + return ERROR_FLASH_OPERATION_FAILED; + } + continue; + } + + /* reset our timeout */ + timeout = 0; + + /* Limit to the amount of data we actually want to write */ + if (thisrun_bytes > count * block_size) + thisrun_bytes = count * block_size; + + /* Write data to fifo */ + retval = target_write_buffer(target, wp, thisrun_bytes, buffer); + if (retval != ERROR_OK) + break; + + /* Update counters and wrap write pointer */ + buffer += thisrun_bytes; + count -= thisrun_bytes / block_size; + wp += thisrun_bytes; + if (wp >= fifo_end_addr) + wp = fifo_start_addr; + + /* Store updated write pointer to target */ + retval = target_write_u32(target, wp_addr, wp); + if (retval != ERROR_OK) + break; + } + + if (retval != ERROR_OK) { + /* abort flash write algorithm on target */ + target_write_u32(target, wp_addr, 0); + } + + int retval2 = target_wait_algorithm(target, num_mem_params, mem_params, + num_reg_params, reg_params, + exit_point, + 10000, + arch_info); + + if (retval2 != ERROR_OK) { + LOG_ERROR("error waiting for target flash write algorithm"); + retval = retval2; + } + + return retval; +} int target_read_memory(struct target *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer) { + if (!target_was_examined(target)) { + LOG_ERROR("Target not examined yet"); + return ERROR_FAIL; + } return target->type->read_memory(target, address, size, count, buffer); } -static int target_read_phys_memory(struct target *target, +int target_read_phys_memory(struct target *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer) { + if (!target_was_examined(target)) { + LOG_ERROR("Target not examined yet"); + return ERROR_FAIL; + } return target->type->read_phys_memory(target, address, size, count, buffer); } int target_write_memory(struct target *target, uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer) { + if (!target_was_examined(target)) { + LOG_ERROR("Target not examined yet"); + return ERROR_FAIL; + } return target->type->write_memory(target, address, size, count, buffer); } -static int target_write_phys_memory(struct target *target, +int target_write_phys_memory(struct target *target, uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer) { + if (!target_was_examined(target)) { + LOG_ERROR("Target not examined yet"); + return ERROR_FAIL; + } return target->type->write_phys_memory(target, address, size, count, buffer); } @@ -831,7 +978,7 @@ int target_add_breakpoint(struct target *target, struct breakpoint *breakpoint) { if ((target->state != TARGET_HALTED) && (breakpoint->type != BKPT_HARD)) { - LOG_WARNING("target %s is not halted", target->cmd_name); + LOG_WARNING("target %s is not halted", target_name(target)); return ERROR_TARGET_NOT_HALTED; } return target->type->add_breakpoint(target, breakpoint); @@ -841,7 +988,7 @@ int target_add_context_breakpoint(struct target *target, struct breakpoint *breakpoint) { if (target->state != TARGET_HALTED) { - LOG_WARNING("target %s is not halted", target->cmd_name); + LOG_WARNING("target %s is not halted", target_name(target)); return ERROR_TARGET_NOT_HALTED; } return target->type->add_context_breakpoint(target, breakpoint); @@ -851,7 +998,7 @@ int target_add_hybrid_breakpoint(struct target *target, struct breakpoint *breakpoint) { if (target->state != TARGET_HALTED) { - LOG_WARNING("target %s is not halted", target->cmd_name); + LOG_WARNING("target %s is not halted", target_name(target)); return ERROR_TARGET_NOT_HALTED; } return target->type->add_hybrid_breakpoint(target, breakpoint); @@ -867,7 +1014,7 @@ int target_add_watchpoint(struct target *target, struct watchpoint *watchpoint) { if (target->state != TARGET_HALTED) { - LOG_WARNING("target %s is not halted", target->cmd_name); + LOG_WARNING("target %s is not halted", target_name(target)); return ERROR_TARGET_NOT_HALTED; } return target->type->add_watchpoint(target, watchpoint); @@ -934,23 +1081,6 @@ static int target_init_one(struct command_context *cmd_ctx, return retval; } - /** - * @todo get rid of those *memory_imp() methods, now that all - * callers are using target_*_memory() accessors ... and make - * sure the "physical" paths handle the same issues. - */ - /* a non-invasive way(in terms of patches) to add some code that - * runs before the type->write/read_memory implementation - */ - type->write_memory_imp = target->type->write_memory; - type->write_memory = target_write_memory_imp; - - type->read_memory_imp = target->type->read_memory; - type->read_memory = target_read_memory_imp; - - type->soft_reset_halt_imp = target->type->soft_reset_halt; - type->soft_reset_halt = target_soft_reset_halt_imp; - /* Sanity-check MMU support ... stub in what we must, to help * implement it in stages, but warn if we need to do so. */ @@ -1502,6 +1632,25 @@ void target_free_all_working_areas(struct target *target) target_free_all_working_areas_restore(target, 1); } +/* Find the largest number of bytes that can be allocated */ +uint32_t target_get_working_area_avail(struct target *target) +{ + struct working_area *c = target->working_areas; + uint32_t max_size = 0; + + if (c == NULL) + return target->working_area_size; + + while (c) { + if (c->free && max_size < c->size) + max_size = c->size; + + c = c->next; + } + + return max_size; +} + int target_arch_state(struct target *target) { int retval; @@ -1994,9 +2143,6 @@ static int sense_handler(void) return ERROR_OK; } -static int backoff_times; -static int backoff_count; - /* process target state changes */ static int handle_target(void *priv) { @@ -2052,13 +2198,6 @@ static int handle_target(void *priv) recursive = 0; } - if (backoff_times > backoff_count) { - /* do not poll this time as we failed previously */ - backoff_count++; - return ERROR_OK; - } - backoff_count = 0; - /* Poll targets for state changes unless that's globally disabled. * Skip targets that are currently disabled. */ @@ -2068,18 +2207,26 @@ static int handle_target(void *priv) if (!target->tap->enabled) continue; + if (target->backoff.times > target->backoff.count) { + /* do not poll this time as we failed previously */ + target->backoff.count++; + continue; + } + target->backoff.count = 0; + /* only poll target if we've got power and srst isn't asserted */ if (!powerDropout && !srstAsserted) { /* polling may fail silently until the target has been examined */ retval = target_poll(target); if (retval != ERROR_OK) { /* 100ms polling interval. Increase interval between polling up to 5000ms */ - if (backoff_times * polling_interval < 5000) { - backoff_times *= 2; - backoff_times++; + if (target->backoff.times * polling_interval < 5000) { + target->backoff.times *= 2; + target->backoff.times++; } - LOG_USER("Polling target failed, GDB will be halted. Polling again in %dms", - backoff_times * polling_interval); + LOG_USER("Polling target %s failed, GDB will be halted. Polling again in %dms", + target_name(target), + target->backoff.times * polling_interval); /* Tell GDB to halt the debugger. This allows the user to * run monitor commands to handle the situation. @@ -2088,9 +2235,9 @@ static int handle_target(void *priv) return retval; } /* Since we succeeded, we reset backoff count */ - if (backoff_times > 0) - LOG_USER("Polling succeeded again"); - backoff_times = 0; + if (target->backoff.times > 0) + LOG_USER("Polling target %s succeeded again", target_name(target)); + target->backoff.times = 0; } } @@ -2330,7 +2477,7 @@ COMMAND_HANDLER(handle_soft_reset_halt_command) LOG_USER("requesting target halt and executing a soft reset"); - target->type->soft_reset_halt(target); + target_soft_reset_halt(target); return ERROR_OK; } @@ -2361,7 +2508,6 @@ COMMAND_HANDLER(handle_resume_command) return ERROR_COMMAND_SYNTAX_ERROR; struct target *target = get_current_target(CMD_CTX); - target_handle_event(target, TARGET_EVENT_OLD_pre_resume); /* with no CMD_ARGV, resume from current pc, addr = 0, * with one arguments, addr = CMD_ARGV[0], @@ -4185,6 +4331,34 @@ static int jim_target_mw(Jim_Interp *interp, int argc, Jim_Obj *const *argv) return (target_fill_mem(target, a, fn, data_size, b, c) == ERROR_OK) ? JIM_OK : JIM_ERR; } +/** +* @brief Reads an array of words/halfwords/bytes from target memory starting at specified address. +* +* Usage: mdw [phys]
[] - for 32 bit reads +* mdh [phys]
[] - for 16 bit reads +* mdb [phys]
[] - for 8 bit reads +* +* Count defaults to 1. +* +* Calls target_read_memory or target_read_phys_memory depending on +* the presence of the "phys" argument +* Reads the target memory in blocks of max. 32 bytes, and returns an array of ints formatted +* to int representation in base16. +* Also outputs read data in a human readable form using command_print +* +* @param phys if present target_read_phys_memory will be used instead of target_read_memory +* @param address address where to start the read. May be specified in decimal or hex using the standard "0x" prefix +* @param count optional count parameter to read an array of values. If not specified, defaults to 1. +* @returns: JIM_ERR on error or JIM_OK on success and sets the result string to an array of ascii formatted numbers +* on success, with [] number of elements. +* +* In case of little endian target: +* Example1: "mdw 0x00000000" returns "10123456" +* Exmaple2: "mdh 0x00000000 1" returns "3456" +* Example3: "mdb 0x00000000" returns "56" +* Example4: "mdh 0x00000000 2" returns "3456 1012" +* Example5: "mdb 0x00000000 3" returns "56 34 12" +**/ static int jim_target_md(Jim_Interp *interp, int argc, Jim_Obj *const *argv) { const char *cmd_name = Jim_GetString(argv[0], NULL); @@ -4213,78 +4387,80 @@ static int jim_target_md(Jim_Interp *interp, int argc, Jim_Obj *const *argv) fn = target_read_phys_memory; } - jim_wide a; - e = Jim_GetOpt_Wide(&goi, &a); + /* Read address parameter */ + jim_wide addr; + e = Jim_GetOpt_Wide(&goi, &addr); if (e != JIM_OK) return JIM_ERR; - jim_wide c; + + /* If next parameter exists, read it out as the count parameter, if not, set it to 1 (default) */ + jim_wide count; if (goi.argc == 1) { - e = Jim_GetOpt_Wide(&goi, &c); + e = Jim_GetOpt_Wide(&goi, &count); if (e != JIM_OK) return JIM_ERR; } else - c = 1; + count = 1; /* all args must be consumed */ if (goi.argc != 0) return JIM_ERR; - jim_wide b = 1; /* shut up gcc */ + jim_wide dwidth = 1; /* shut up gcc */ if (strcasecmp(cmd_name, "mdw") == 0) - b = 4; + dwidth = 4; else if (strcasecmp(cmd_name, "mdh") == 0) - b = 2; + dwidth = 2; else if (strcasecmp(cmd_name, "mdb") == 0) - b = 1; + dwidth = 1; else { LOG_ERROR("command '%s' unknown: ", cmd_name); return JIM_ERR; } /* convert count to "bytes" */ - c = c * b; + int bytes = count * dwidth; struct target *target = Jim_CmdPrivData(goi.interp); uint8_t target_buf[32]; jim_wide x, y, z; - while (c > 0) { - y = c; - if (y > 16) - y = 16; - e = fn(target, a, b, y / b, target_buf); + while (bytes > 0) { + y = (bytes < 16) ? bytes : 16; /* y = min(bytes, 16); */ + + /* Try to read out next block */ + e = fn(target, addr, dwidth, y / dwidth, target_buf); + if (e != ERROR_OK) { - char tmp[10]; - snprintf(tmp, sizeof(tmp), "%08lx", (long)a); - Jim_SetResultFormatted(interp, "error reading target @ 0x%s", tmp); + Jim_SetResultFormatted(interp, "error reading target @ 0x%08lx", (long)addr); return JIM_ERR; } - command_print(NULL, "0x%08x ", (int)(a)); - switch (b) { + command_print_sameline(NULL, "0x%08x ", (int)(addr)); + switch (dwidth) { case 4: for (x = 0; x < 16 && x < y; x += 4) { z = target_buffer_get_u32(target, &(target_buf[x])); - command_print(NULL, "%08x ", (int)(z)); + command_print_sameline(NULL, "%08x ", (int)(z)); } for (; (x < 16) ; x += 4) - command_print(NULL, " "); + command_print_sameline(NULL, " "); break; case 2: for (x = 0; x < 16 && x < y; x += 2) { z = target_buffer_get_u16(target, &(target_buf[x])); - command_print(NULL, "%04x ", (int)(z)); + command_print_sameline(NULL, "%04x ", (int)(z)); } for (; (x < 16) ; x += 2) - command_print(NULL, " "); + command_print_sameline(NULL, " "); break; case 1: default: for (x = 0 ; (x < 16) && (x < y) ; x += 1) { z = target_buffer_get_u8(target, &(target_buf[x])); - command_print(NULL, "%02x ", (int)(z)); + command_print_sameline(NULL, "%02x ", (int)(z)); } for (; (x < 16) ; x += 1) - command_print(NULL, " "); + command_print_sameline(NULL, " "); break; } /* ascii-ify the bytes */ @@ -4305,10 +4481,10 @@ static int jim_target_md(Jim_Interp *interp, int argc, Jim_Obj *const *argv) /* terminate */ target_buf[16] = 0; /* print - with a newline */ - command_print(NULL, "%s\n", target_buf); + command_print_sameline(NULL, "%s\n", target_buf); /* NEXT... */ - c -= 16; - a += 16; + bytes -= 16; + addr += 16; } return JIM_OK; } @@ -4710,6 +4886,15 @@ static int target_create(Jim_GetOptInfo *goi) /* found */ break; } + + /* check for deprecated name */ + if (target_types[x]->deprecated_name) { + if (0 == strcmp(cp, target_types[x]->deprecated_name)) { + /* found */ + LOG_WARNING("target name is deprecated use: \'%s\'", target_types[x]->name); + break; + } + } } if (target_types[x] == NULL) { Jim_SetResultFormatted(goi->interp, "Unknown target type %s, try one of ", cp); @@ -4865,7 +5050,7 @@ static int jim_target_current(Jim_Interp *interp, int argc, Jim_Obj *const *argv struct command_context *cmd_ctx = current_command_context(interp); assert(cmd_ctx != NULL); - Jim_SetResultString(interp, get_current_target(cmd_ctx)->cmd_name, -1); + Jim_SetResultString(interp, target_name(get_current_target(cmd_ctx)), -1); return JIM_OK; } @@ -4908,7 +5093,6 @@ static int jim_target_smp(Jim_Interp *interp, int argc, Jim_Obj *const *argv) struct target_list *head, *curr, *new; curr = (struct target_list *) NULL; head = (struct target_list *) NULL; - new = (struct target_list *) NULL; retval = 0; LOG_DEBUG("%d", argc); @@ -4944,8 +5128,10 @@ static int jim_target_smp(Jim_Interp *interp, int argc, Jim_Obj *const *argv) target->head = head; curr = curr->next; } - if (target->rtos) + + if (target && target->rtos) retval = rtos_smp_init(head->target); + return retval; }