+// SPDX-License-Identifier: GPL-2.0-or-later
+
/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
- * Copyright (C) 2007,2008 Øyvind Harboe *
+ * Copyright (C) 2007-2010 Øyvind Harboe *
* oyvind.harboe@zylin.com *
* *
* Copyright (C) 2008 by Spencer Oliver *
* spen@spen-soft.co.uk *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
+#include "log.h"
+#include "command.h"
+#include "replacements.h"
#include "time_support.h"
-// @todo the inclusion of server.h here is a layering violation
-#include "server.h"
+#include <server/gdb_server.h>
+#include <server/server.h>
#include <stdarg.h>
#endif
#endif
-int debug_level = -1;
+int debug_level = LOG_LVL_INFO;
-static FILE* log_output;
-static struct log_callback *log_callbacks = NULL;
+static FILE *log_output;
+static struct log_callback *log_callbacks;
-static long long last_time;
-static long long current_time;
+static int64_t last_time;
-static long long start;
+static int64_t start;
-static char *log_strings[5] =
-{
+static const char * const log_strings[6] = {
"User : ",
"Error: ",
- "Warn : ", /* want a space after each colon, all same width, colons aligned */
+ "Warn : ", /* want a space after each colon, all same width, colons aligned */
"Info : ",
+ "Debug: ",
"Debug: "
};
+static int count;
-static int count = 0;
-
-
-static struct store_log_forward * log_head = NULL;
-static int log_forward_count = 0;
-
-struct store_log_forward
-{
- struct store_log_forward * next;
- const char * file;
- int line;
- const char * function;
- const char * string;
-};
-
-/* either forward the log to the listeners or store it for possible forwarding later */
+/* forward the log to the listeners */
static void log_forward(const char *file, unsigned line, const char *function, const char *string)
{
- if (log_forward_count==0)
- {
- struct log_callback *cb, *next;
- cb = log_callbacks;
- /* DANGER!!!! the log callback can remove itself!!!! */
- while (cb)
- {
- next = cb->next;
- cb->fn(cb->priv, file, line, function, string);
- cb = next;
- }
- } else
- {
- struct store_log_forward *log = malloc(sizeof (struct store_log_forward));
- log->file = strdup(file);
- log->line = line;
- log->function = strdup(function);
- log->string = strdup(string);
- log->next = NULL;
- if (log_head==NULL)
- log_head = log;
- else
- {
- /* append to tail */
- struct store_log_forward * t;
- t = log_head;
- while (t->next!=NULL)
- {
- t = t->next;
- }
- t->next = log;
- }
- }
-}
-
-void log_try(void)
-{
- log_forward_count++;
-}
-
-void log_catch(void)
-{
- assert(log_forward_count>0);
- log_forward_count--;
-}
-
-void log_rethrow(void)
-{
- log_catch();
- if (log_forward_count==0)
- {
- struct store_log_forward *log;
-
- log = log_head;
- while (log != NULL)
- {
- log_forward(log->file, log->line, log->function, log->string);
-
- struct store_log_forward *t=log;
- log = log->next;
-
- free((void *)t->file);
- free((void *)t->function);
- free((void *)t->string);
- free(t);
-
- }
-
- log_head = NULL;
+ struct log_callback *cb, *next;
+ cb = log_callbacks;
+ /* DANGER!!!! the log callback can remove itself!!!! */
+ while (cb) {
+ next = cb->next;
+ cb->fn(cb->priv, file, line, function, string);
+ cb = next;
}
}
-
-/* The log_puts() serves to somewhat different goals:
+/* The log_puts() serves two somewhat different goals:
*
* - logging
* - feeding low-level info to the user in GDB or Telnet
* target_request.c).
*
*/
-static void log_puts(enum log_levels level, const char *file, int line, const char *function, const char *string)
+static void log_puts(enum log_levels level,
+ const char *file,
+ int line,
+ const char *function,
+ const char *string)
{
char *f;
- if (level == LOG_LVL_OUTPUT)
- {
+
+ if (!log_output) {
+ /* log_init() not called yet; print on stderr */
+ fputs(string, stderr);
+ fflush(stderr);
+ return;
+ }
+
+ if (level == LOG_LVL_OUTPUT) {
/* do not prepend any headers, just print out what we were given and return */
fputs(string, log_output);
fflush(log_output);
}
f = strrchr(file, '/');
- if (f != NULL)
+ if (f)
file = f + 1;
- if (strchr(string, '\n') != NULL)
- {
- if (debug_level >= LOG_LVL_DEBUG)
- {
- /* print with count and time information */
- int t = (int)(timeval_ms()-start);
+ if (debug_level >= LOG_LVL_DEBUG) {
+ /* print with count and time information */
+ int64_t t = timeval_ms() - start;
#ifdef _DEBUG_FREE_SPACE_
- struct mallinfo info;
- info = mallinfo();
+ struct mallinfo info;
+ info = mallinfo();
#endif
- fprintf(log_output, "%s%d %d %s:%d %s()"
+ fprintf(log_output, "%s%d %" PRId64 " %s:%d %s()"
#ifdef _DEBUG_FREE_SPACE_
- " %d"
+ " %d"
#endif
- ": %s", log_strings[level + 1], count, t, file, line, function,
+ ": %s", log_strings[level + 1], count, t, file, line, function,
#ifdef _DEBUG_FREE_SPACE_
- info.fordblks,
+ info.fordblks,
#endif
- string);
- }
- else if (server_use_pipes == 0)
- {
- /* if we are using gdb through pipes then we do not want any output
- * to the pipe otherwise we get repeated strings */
- if (strcmp(string, "\n") != 0)
- {
- /* print human readable output - but skip empty lines */
- fprintf(log_output, "%s%s",
- (level > LOG_LVL_USER)?log_strings[level + 1]:"", string);
- }
- }
- } else
- {
- /* only entire lines are logged. Otherwise it's
- * single chars intended for the log callbacks. */
+ string);
+ } else {
+ /* if we are using gdb through pipes then we do not want any output
+ * to the pipe otherwise we get repeated strings */
+ fprintf(log_output, "%s%s",
+ (level > LOG_LVL_USER) ? log_strings[level + 1] : "", string);
}
fflush(log_output);
/* Never forward LOG_LVL_DEBUG, too verbose and they can be found in the log if need be */
if (level <= LOG_LVL_INFO)
- {
log_forward(file, line, function, string);
- }
}
-
-void log_printf(enum log_levels level, const char *file, unsigned line, const char *function, const char *format, ...)
+void log_printf(enum log_levels level,
+ const char *file,
+ unsigned line,
+ const char *function,
+ const char *format,
+ ...)
{
char *string;
va_list ap;
va_start(ap, format);
string = alloc_vprintf(format, ap);
- if (string != NULL)
- {
+ if (string) {
log_puts(level, file, line, function, string);
free(string);
}
va_end(ap);
}
-void log_printf_lf(enum log_levels level, const char *file, unsigned line, const char *function, const char *format, ...)
+void log_vprintf_lf(enum log_levels level, const char *file, unsigned line,
+ const char *function, const char *format, va_list args)
{
- char *string;
- va_list ap;
+ char *tmp;
count++;
+
if (level > debug_level)
return;
- va_start(ap, format);
+ tmp = alloc_vprintf(format, args);
- string = alloc_vprintf(format, ap);
- if (string != NULL)
- {
- strcat(string, "\n"); /* alloc_vprintf guaranteed the buffer to be at least one char longer */
- log_puts(level, file, line, function, string);
- free(string);
- }
+ if (!tmp)
+ return;
+
+ /*
+ * Note: alloc_vprintf() guarantees that the buffer is at least one
+ * character longer.
+ */
+ strcat(tmp, "\n");
+ log_puts(level, file, line, function, tmp);
+ free(tmp);
+}
+void log_printf_lf(enum log_levels level,
+ const char *file,
+ unsigned line,
+ const char *function,
+ const char *format,
+ ...)
+{
+ va_list ap;
+
+ va_start(ap, format);
+ log_vprintf_lf(level, file, line, function, format, ap);
va_end(ap);
}
-/* change the current debug level on the fly
- * 0: only ERRORS
- * 1: + WARNINGS
- * 2: + INFORMATIONAL MSGS
- * 3: + DEBUG MSGS
- */
COMMAND_HANDLER(handle_debug_level_command)
{
- if (CMD_ARGC == 1)
- {
- unsigned new_level;
- COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], new_level);
- debug_level = MIN(new_level, LOG_LVL_DEBUG);
- }
- else if (CMD_ARGC > 1)
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- if (debug_level >= LOG_LVL_DEBUG && server_use_pipes == 1)
- {
- /* if we are enabling debug info then we need to write to a log file
- * otherwise the pipe will get full and cause issues with gdb */
- FILE* file = fopen("openocd.log", "w");
- if (file)
- {
- log_output = file;
- LOG_WARNING("enabling log output as we are using pipes");
+ if (CMD_ARGC == 1) {
+ int new_level;
+ COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], new_level);
+ if ((new_level > LOG_LVL_DEBUG_IO) || (new_level < LOG_LVL_SILENT)) {
+ LOG_ERROR("level must be between %d and %d", LOG_LVL_SILENT, LOG_LVL_DEBUG_IO);
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
- }
+ debug_level = new_level;
+ } else if (CMD_ARGC > 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
- command_print(CMD_CTX, "debug_level: %i", debug_level);
+ command_print(CMD, "debug_level: %i", debug_level);
return ERROR_OK;
}
COMMAND_HANDLER(handle_log_output_command)
{
- if (CMD_ARGC == 1)
- {
- FILE* file = fopen(CMD_ARGV[0], "w");
+ if (CMD_ARGC > 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
- if (file)
- {
- log_output = file;
+ FILE *file;
+ if (CMD_ARGC == 1 && strcmp(CMD_ARGV[0], "default") != 0) {
+ file = fopen(CMD_ARGV[0], "w");
+ if (!file) {
+ command_print(CMD, "failed to open output log \"%s\"", CMD_ARGV[0]);
+ return ERROR_FAIL;
}
+ command_print(CMD, "set log_output to \"%s\"", CMD_ARGV[0]);
+ } else {
+ file = stderr;
+ command_print(CMD, "set log_output to default");
}
+ if (log_output != stderr && log_output) {
+ /* Close previous log file, if it was open and wasn't stderr. */
+ fclose(log_output);
+ }
+ log_output = file;
return ERROR_OK;
}
-static struct command_registration log_command_handlers[] = {
+static const struct command_registration log_command_handlers[] = {
{
.name = "log_output",
- .handler = &handle_log_output_command,
+ .handler = handle_log_output_command,
.mode = COMMAND_ANY,
.help = "redirect logging to a file (default: stderr)",
- .usage = "<file_name>",
+ .usage = "[file_name | 'default']",
},
{
.name = "debug_level",
- .handler = &handle_debug_level_command,
+ .handler = handle_debug_level_command,
.mode = COMMAND_ANY,
- .help = "sets the verbosity level of debugging output",
- .usage = "<level:0-3>",
+ .help = "Sets the verbosity level of debugging output. "
+ "0 shows errors only; 1 adds warnings; "
+ "2 (default) adds other info; 3 adds debugging; "
+ "4 adds extra verbose debugging.",
+ .usage = "number",
},
COMMAND_REGISTRATION_DONE
};
{
/* set defaults for daemon configuration,
* if not set by cmdline or cfgfile */
- if (debug_level == -1)
- debug_level = LOG_LVL_INFO;
+ char *debug_env = getenv("OPENOCD_DEBUG_LEVEL");
+ if (debug_env) {
+ int value;
+ int retval = parse_int(debug_env, &value);
+ if (retval == ERROR_OK &&
+ debug_level >= LOG_LVL_SILENT &&
+ debug_level <= LOG_LVL_DEBUG_IO)
+ debug_level = value;
+ }
- if (log_output == NULL)
+ if (!log_output)
log_output = stderr;
start = last_time = timeval_ms();
}
-int set_log_output(struct command_context *cmd_ctx, FILE *output)
+void log_exit(void)
{
- log_output = output;
- return ERROR_OK;
+ if (log_output && log_output != stderr) {
+ /* Close log file, if it was open and wasn't stderr. */
+ fclose(log_output);
+ }
+ log_output = NULL;
}
/* add/remove log callback handler */
struct log_callback *cb;
/* prevent the same callback to be registered more than once, just for sure */
- for (cb = log_callbacks; cb; cb = cb->next)
- {
+ for (cb = log_callbacks; cb; cb = cb->next) {
if (cb->fn == fn && cb->priv == priv)
- return ERROR_INVALID_ARGUMENTS;
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
- /* alloc memory, it is safe just to return in case of an error, no need for the caller to check this */
- if ((cb = malloc(sizeof(struct log_callback))) == NULL)
+ /* alloc memory, it is safe just to return in case of an error, no need for the caller to
+ *check this */
+ cb = malloc(sizeof(struct log_callback));
+ if (!cb)
return ERROR_BUF_TOO_SMALL;
/* add item to the beginning of the linked list */
{
struct log_callback *cb, **p;
- for (p = &log_callbacks; (cb = *p); p = &(*p)->next)
- {
- if (cb->fn == fn && cb->priv == priv)
- {
+ for (p = &log_callbacks; (cb = *p); p = &(*p)->next) {
+ if (cb->fn == fn && cb->priv == priv) {
*p = cb->next;
free(cb);
return ERROR_OK;
}
/* no such item */
- return ERROR_INVALID_ARGUMENTS;
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
/* return allocated string w/printf() result */
* other code depend on that. They should be probably be fixed, but for
* now reserve the extra byte. */
string = malloc(len + 2);
- if (string == NULL)
+ if (!string)
return NULL;
/* do the real work */
* fast when invoked more often than every 500ms.
*
*/
-void keep_alive()
+#define KEEP_ALIVE_KICK_TIME_MS 500
+#define KEEP_ALIVE_TIMEOUT_MS 1000
+
+static void gdb_timeout_warning(int64_t delta_time)
{
- current_time = timeval_ms();
- if (current_time-last_time > 1000)
- {
- extern int gdb_actual_connections;
-
- if (gdb_actual_connections)
- LOG_WARNING("keep_alive() was not invoked in the "
- "1000ms timelimit. GDB alive packet not "
- "sent! (%lld). Workaround: increase "
- "\"set remotetimeout\" in GDB",
- current_time-last_time);
- else
- LOG_DEBUG("keep_alive() was not invoked in the "
- "1000ms timelimit (%lld). This may cause "
- "trouble with GDB connections.",
- current_time-last_time);
+ if (gdb_get_actual_connections())
+ LOG_WARNING("keep_alive() was not invoked in the "
+ "%d ms timelimit. GDB alive packet not "
+ "sent! (%" PRId64 " ms). Workaround: increase "
+ "\"set remotetimeout\" in GDB",
+ KEEP_ALIVE_TIMEOUT_MS,
+ delta_time);
+ else
+ LOG_DEBUG("keep_alive() was not invoked in the "
+ "%d ms timelimit (%" PRId64 " ms). This may cause "
+ "trouble with GDB connections.",
+ KEEP_ALIVE_TIMEOUT_MS,
+ delta_time);
+}
+
+void keep_alive(void)
+{
+ int64_t current_time = timeval_ms();
+ int64_t delta_time = current_time - last_time;
+
+ if (delta_time > KEEP_ALIVE_TIMEOUT_MS) {
+ last_time = current_time;
+
+ gdb_timeout_warning(delta_time);
}
- if (current_time-last_time > 500)
- {
+
+ if (delta_time > KEEP_ALIVE_KICK_TIME_MS) {
+ last_time = current_time;
+
/* this will keep the GDB connection alive */
- LOG_USER_N("%s", "");
+ server_keep_clients_alive();
/* DANGER!!!! do not add code to invoke e.g. target event processing,
* jim timer processing, etc. it can cause infinite recursion +
*
* These functions should be invoked at a well defined spot in server.c
*/
-
- last_time = current_time;
}
}
/* reset keep alive timer without sending message */
-void kept_alive()
+void kept_alive(void)
{
- current_time = timeval_ms();
+ int64_t current_time = timeval_ms();
+
+ int64_t delta_time = current_time - last_time;
+
last_time = current_time;
+
+ if (delta_time > KEEP_ALIVE_TIMEOUT_MS)
+ gdb_timeout_warning(delta_time);
}
-/* if we sleep for extended periods of time, we must invoke keep_alive() intermittantly */
+/* if we sleep for extended periods of time, we must invoke keep_alive() intermittently */
void alive_sleep(uint64_t ms)
{
- uint64_t napTime = 10;
- for (uint64_t i = 0; i < ms; i += napTime)
- {
+ uint64_t nap_time = 10;
+ for (uint64_t i = 0; i < ms; i += nap_time) {
uint64_t sleep_a_bit = ms - i;
- if (sleep_a_bit > napTime)
- sleep_a_bit = napTime;
+ if (sleep_a_bit > nap_time)
+ sleep_a_bit = nap_time;
usleep(sleep_a_bit * 1000);
keep_alive();
void busy_sleep(uint64_t ms)
{
uint64_t then = timeval_ms();
- while (timeval_ms() - then < ms)
- {
- /* busy wait */
+ while (timeval_ms() - then < ms) {
+ /*
+ * busy wait
+ */
+ }
+}
+
+/* Maximum size of socket error message retrieved from operation system */
+#define MAX_SOCKET_ERR_MSG_LENGTH 256
+
+/* Provide log message for the last socket error.
+ Uses errno on *nix and WSAGetLastError() on Windows */
+void log_socket_error(const char *socket_desc)
+{
+ int error_code;
+#ifdef _WIN32
+ error_code = WSAGetLastError();
+ char error_message[MAX_SOCKET_ERR_MSG_LENGTH];
+ error_message[0] = '\0';
+ DWORD retval = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, error_code, 0,
+ error_message, MAX_SOCKET_ERR_MSG_LENGTH, NULL);
+ error_message[MAX_SOCKET_ERR_MSG_LENGTH - 1] = '\0';
+ const bool have_message = (retval != 0) && (error_message[0] != '\0');
+ LOG_ERROR("Error on socket '%s': WSAGetLastError==%d%s%s.", socket_desc, error_code,
+ (have_message ? ", message: " : ""),
+ (have_message ? error_message : ""));
+#else
+ error_code = errno;
+ LOG_ERROR("Error on socket '%s': errno==%d, message: %s.", socket_desc, error_code, strerror(error_code));
+#endif
+}
+
+/**
+ * Find the first non-printable character in the char buffer, return a pointer to it.
+ * If no such character exists, return NULL.
+ */
+char *find_nonprint_char(char *buf, unsigned buf_len)
+{
+ for (unsigned int i = 0; i < buf_len; i++) {
+ if (!isprint(buf[i]))
+ return buf + i;
}
+ return NULL;
}
Code Review / openocd.git / blobdiff