+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* 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, see <http://www.gnu.org/licenses/>. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "log.h"
#include "command.h"
+#include "replacements.h"
#include "time_support.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;
static int64_t last_time;
-static int64_t current_time;
static int64_t start;
static int count;
-static struct store_log_forward *log_head;
-static int log_forward_count;
-
-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;
- }
+ 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
const char *string)
{
char *f;
+
+ 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);
}
f = strrchr(file, '/');
- if (f != NULL)
+ if (f)
file = f + 1;
- if (strlen(string) > 0) {
- if (debug_level >= LOG_LVL_DEBUG) {
- /* print with count and time information */
- int64_t t = 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 %" PRId64 " %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 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);
- }
+ string);
} else {
- /* Empty strings are sent to log callbacks to keep e.g. gdbserver alive, here we do
- *nothing. */
+ /* 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);
va_start(ap, format);
string = alloc_vprintf(format, ap);
- if (string != NULL) {
+ if (string) {
log_puts(level, file, line, function, string);
free(string);
}
} 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 == 0 || (CMD_ARGC == 1 && strcmp(CMD_ARGV[0], "default") == 0)) {
+ if (log_output != stderr && log_output) {
+ /* Close previous log file, if it was open and wasn't stderr. */
+ fclose(log_output);
+ }
+ log_output = stderr;
+ LOG_DEBUG("set log_output to default");
+ return ERROR_OK;
+ }
if (CMD_ARGC == 1) {
FILE *file = fopen(CMD_ARGV[0], "w");
- if (file == NULL) {
+ if (!file) {
LOG_ERROR("failed to open output log '%s'", CMD_ARGV[0]);
return ERROR_FAIL;
}
- if (log_output != stderr && log_output != NULL) {
+ if (log_output != stderr && log_output) {
/* Close previous log file, if it was open and wasn't stderr. */
fclose(log_output);
}
log_output = file;
+ LOG_DEBUG("set log_output to \"%s\"", CMD_ARGV[0]);
+ return ERROR_OK;
}
- return ERROR_OK;
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
-static struct command_registration log_command_handlers[] = {
+static const struct command_registration log_command_handlers[] = {
{
.name = "log_output",
.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",
{
/* 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 (NULL != debug_env) {
+ if (debug_env) {
int value;
int retval = parse_int(debug_env, &value);
- if (ERROR_OK == retval &&
+ 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();
}
+void log_exit(void)
+{
+ if (log_output && log_output != stderr) {
+ /* Close log file, if it was open and wasn't stderr. */
+ fclose(log_output);
+ }
+ log_output = NULL;
+}
+
int set_log_output(struct command_context *cmd_ctx, FILE *output)
{
log_output = output;
/* 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 == NULL)
+ if (!cb)
return ERROR_BUF_TOO_SMALL;
/* add item to the beginning of the linked list */
* 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)
+{
+ extern int gdb_actual_connections;
+
+ if (gdb_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)
{
- 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! (%" PRId64 "). Workaround: increase "
- "\"set remotetimeout\" in GDB",
- current_time-last_time);
- else
- LOG_DEBUG("keep_alive() was not invoked in the "
- "1000ms timelimit (%" PRId64 "). This may cause "
- "trouble with GDB connections.",
- current_time-last_time);
+ 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();
*/
}
}
+
+/* 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;
+}
projects / fw / openocd / blobdiff