Restore esp-idf port (#4828)

This also cleans up all the files, moving them into a single file for
the port itself and module support respectively.

JerryScript-DCO-1.0-Signed-off-by: Jacques Germishuys jacques@beakbooklimited.com

8 files changed, 585 insertions, 410 deletions

diff --git a/targets/esp-idf/date.c b/targets/esp-idf/date.c
deleted file mode 100644
index e9ebdb3c..00000000
--- a/targets/esp-idf/date.c
+++ /dev/null
@@ -1,67 +0,0 @@
-/* Copyright JS Foundation and other contributors, http://js.foundation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-#include <sys/time.h>
-
-#include "jerryscript-port.h"
-
-/**
- * Default implementation of jerry_port_get_local_time_zone_adjustment. Uses the 'tm_gmtoff' field
- * of 'struct tm' (a GNU extension) filled by 'localtime_r' if available on the
- * system, does nothing otherwise.
- *
- * @return offset between UTC and local time at the given unix timestamp, if
- *         available. Otherwise, returns 0, assuming UTC time.
- */
-double jerry_port_get_local_time_zone_adjustment (double unix_ms,  /**< ms since unix epoch */
-                                                  bool is_utc)  /**< is the time above in UTC? */
-{
-  struct tm tm;
-  char buf[8];   
-  time_t now = (time_t) (unix_ms / 1000);
-  
-  localtime_r (&now, &tm);
-  
-  if (!is_utc)
-  {
-    strftime(buf, 8, "%z", &tm);
-    now -= -atof(buf) * 3600 * 1000 / 100;
-    localtime_r (&now, &tm);
-  }
-  
-  strftime(buf, 8, "%z", &tm);
-  
-  return -atof(buf) * 3600 * 1000 / 100;
-} /* jerry_port_get_local_time_zone_adjustment */
-
-/**
- * Default implementation of jerry_port_get_current_time. Uses 'gettimeofday' if
- * available on the system, does nothing otherwise.
- *
- * @return milliseconds since Unix epoch - if 'gettimeofday' is available and
- *                                         executed successfully,
- *         0 - otherwise.
- */
-double jerry_port_get_current_time (void)
-{
-  struct timeval tv;
-
-  if (gettimeofday (&tv, NULL) == 0)
-  {
-    return ((double) tv.tv_sec) * 1000.0 + ((double) tv.tv_usec) / 1000.0;
-  } 
-  return 0.0;
-} /* jerry_port_get_current_time */
diff --git a/targets/esp-idf/debugger.c b/targets/esp-idf/debugger.c
deleted file mode 100644
index 71324392..00000000
--- a/targets/esp-idf/debugger.c
+++ /dev/null
@@ -1,28 +0,0 @@
-/* Copyright JS Foundation and other contributors, http://js.foundation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "freertos/FreeRTOS.h"
-#include "freertos/task.h"
-
-#include "jerryscript-port.h"
-
-/**
- * Default implementation of jerry_port_sleep. Uses 'nanosleep' or 'usleep' if
- * available on the system, does nothing otherwise.
- */
-void jerry_port_sleep (uint32_t sleep_time) /**< milliseconds to sleep */
-{
-  vTaskDelay( sleep_time / portTICK_PERIOD_MS);
-} /* jerry_port_sleep */
diff --git a/targets/esp-idf/external-context.c b/targets/esp-idf/external-context.c
deleted file mode 100644
index 4863a8a6..00000000
--- a/targets/esp-idf/external-context.c
+++ /dev/null
@@ -1,43 +0,0 @@
-/* Copyright JS Foundation and other contributors, http://js.foundation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- 
-#include "jerryscript-port.h"
-
-/**
- * Pointer to the current context.
- * Note that it is a global variable, and is not a thread safe implementation.
- * But I don't see how jerryscript can make that thread-safe, only the appication can
- */
-static jerry_context_t *current_context_p = NULL;
-
-/**
- * Set the current_context_p as the passed pointer.
- */
-void
-jerry_port_default_set_current_context (jerry_context_t *context_p) /**< points to the created context */
-{
-  current_context_p = context_p;
-} /* jerry_port_default_set_current_context */
-
-/**
- * Get the current context.
- *
- * @return the pointer to the current context
- */
-jerry_context_t *
-jerry_port_get_current_context (void)
-{
-  return current_context_p;
-} /* jerry_port_get_current_context */
diff --git a/targets/esp-idf/fatal.c b/targets/esp-idf/fatal.c
deleted file mode 100644
index b178ff7d..00000000
--- a/targets/esp-idf/fatal.c
+++ /dev/null
@@ -1,34 +0,0 @@
-/* Copyright JS Foundation and other contributors, http://js.foundation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "freertos/FreeRTOS.h"
-#include "freertos/task.h"
-#include "esp_system.h"
-#include "esp_log.h"
-
-#include "jerryscript-port.h"
-
-static const char TAG[] = "JS";
-
-/**
- * Default implementation of jerry_port_fatal. Calls 'abort' if exit code is
- * non-zero, 'exit' otherwise.
- */
-void jerry_port_fatal (jerry_fatal_code_t code) /**< cause of error */
-{
-  ESP_LOGE(TAG, "Fatal error %d", code);	
-  vTaskSuspend(NULL);
-  abort();
-} /* jerry_port_fatal */
diff --git a/targets/esp-idf/io.c b/targets/esp-idf/io.c
deleted file mode 100644
index 8dff90b2..00000000
--- a/targets/esp-idf/io.c
+++ /dev/null
@@ -1,124 +0,0 @@
-/* Copyright JS Foundation and other contributors, http://js.foundation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdarg.h>
-#include <stdlib.h>
-#include <string.h>
-#include "esp_log.h"
-
-#include "jerryscript-port.h"
-#include "jerryscript-debugger.h"
-
-static const char TAG[] = "JS";
-
-static esp_log_level_t crosslog(jerry_log_level_t level)
-{
-  switch(level)
-  {
-    case JERRY_LOG_LEVEL_ERROR: return ESP_LOG_ERROR;
-    case JERRY_LOG_LEVEL_WARNING: return ESP_LOG_WARN;
-    case JERRY_LOG_LEVEL_DEBUG: return ESP_LOG_DEBUG;
-    case JERRY_LOG_LEVEL_TRACE: return ESP_LOG_VERBOSE;
-  }
-
- return ESP_LOG_NONE;
-}
-
-/**
- * Actual log level
- */
-static jerry_log_level_t jerry_port_default_log_level = JERRY_LOG_LEVEL_ERROR;
-
-/**
- * Get the log level
- *
- * @return current log level
- */
-jerry_log_level_t
-jerry_port_default_get_log_level (void)
-{
-  return jerry_port_default_log_level;
-} /* jerry_port_default_get_log_level */
-
-/**
- * Set the log level
- */
-void
-jerry_port_default_set_log_level (jerry_log_level_t level) /**< log level */
-{
-  jerry_port_default_log_level = level;
-} /* jerry_port_default_set_log_level */
-
-/**
- * Default implementation of jerry_port_log. Prints log message to the standard
- * error with 'vfprintf' if message log level is less than or equal to the
- * current log level.
- *
- * If debugger support is enabled, printing happens first to an in-memory buffer,
- * which is then sent both to the standard error and to the debugger client.
- */
-void
-jerry_port_log (jerry_log_level_t level, /**< message log level */
-                const char *format, /**< format string */
-                ...)  /**< parameters */
-{
-  if (level <= jerry_port_default_log_level)
-  {
-    va_list args;
-    va_start (args, format);
-#if defined (JERRY_DEBUGGER) && (JERRY_DEBUGGER == 1)
-    int length = vsnprintf (NULL, 0, format, args);
-    va_end (args);
-    va_start (args, format);
-
-    JERRY_VLA (char, buffer, length + 1);
-    vsnprintf (buffer, (size_t) length + 1, format, args);
-
-    esp_log_write(crosslog(level), TAG, buffer);
-    jerry_debugger_send_log (level, (jerry_char_t *) buffer, (jerry_size_t) length);
-#else /* If jerry-debugger isn't defined, libc is turned on */
-    esp_log_writev(crosslog(level), TAG, format, args);
-#endif /* defined (JERRY_DEBUGGER) && (JERRY_DEBUGGER == 1) */
-    va_end (args);
-  }
-} /* jerry_port_log */
-
-#if defined (JERRY_DEBUGGER) && (JERRY_DEBUGGER == 1)
-
-#define DEBUG_BUFFER_SIZE (256)
-static char debug_buffer[DEBUG_BUFFER_SIZE];
-static int debug_buffer_index = 0;
-
-#endif /* defined (JERRY_DEBUGGER) && (JERRY_DEBUGGER == 1) */
-
-/**
- * Default implementation of jerry_port_print_char. Uses 'putchar' to
- * print a single character to standard output.
- */
-void
-jerry_port_print_char (char c) /**< the character to print */
-{
-  putchar(c);
-
-#if defined (JERRY_DEBUGGER) && (JERRY_DEBUGGER == 1)
-  debug_buffer[debug_buffer_index++] = c;
-
-  if ((debug_buffer_index == DEBUG_BUFFER_SIZE) || (c == '\n'))
-  {
-    jerry_debugger_send_output ((jerry_char_t *) debug_buffer, (jerry_size_t) debug_buffer_index);
-    debug_buffer_index = 0;
-  }
-#endif /* defined (JERRY_DEBUGGER) && (JERRY_DEBUGGER == 1) */
-} /* jerry_port_print_char */
diff --git a/targets/esp-idf/jerry_module.c b/targets/esp-idf/jerry_module.c
new file mode 100644
index 00000000..97f92dcf
--- /dev/null
+++ b/targets/esp-idf/jerry_module.c
@@ -0,0 +1,302 @@
+/* Copyright JS Foundation and other contributors, http://js.foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "jerryscript.h"
+#include "jerryscript-port.h"
+
+/**
+ * Computes the end of the directory part of a path.
+ *
+ * @return end of the directory part of a path.
+ */
+static size_t
+jerry_port_get_directory_end (const jerry_char_t *path_p) /**< path */
+{
+  const jerry_char_t *end_p = path_p + strlen ((const char *) path_p);
+
+  while (end_p > path_p)
+  {
+    if (end_p[-1] == '/')
+    {
+      return (size_t) (end_p - path_p);
+    }
+
+    end_p--;
+  }
+
+  return 0;
+} /* jerry_port_get_directory_end */
+
+/**
+ * Normalize a file path.
+ *
+ * @return a newly allocated buffer with the normalized path if the operation is successful,
+ *         NULL otherwise
+ */
+static jerry_char_t *
+jerry_port_normalize_path (const jerry_char_t *in_path_p, /**< path to the referenced module */
+                           size_t in_path_length, /**< length of the path */
+                           const jerry_char_t *base_path_p, /**< base path */
+                           size_t base_path_length) /**< length of the base path */
+{
+  char *path_p;
+
+  if (base_path_length > 0)
+  {
+    path_p = (char *) malloc (base_path_length + in_path_length + 1);
+
+    if (path_p == NULL)
+    {
+      return NULL;
+    }
+
+    memcpy (path_p, base_path_p, base_path_length);
+    memcpy (path_p + base_path_length, in_path_p, in_path_length);
+    path_p[base_path_length + in_path_length] = '\0';
+  }
+  else
+  {
+    path_p = (char *) malloc (in_path_length + 1);
+
+    if (path_p == NULL)
+    {
+      return NULL;
+    }
+
+    memcpy (path_p, in_path_p, in_path_length);
+    path_p[in_path_length] = '\0';
+  }
+
+  return (jerry_char_t *) path_p;
+} /* jerry_port_normalize_path */
+
+/**
+ * A module descriptor.
+ */
+typedef struct jerry_port_module_t
+{
+  struct jerry_port_module_t *next_p; /**< next_module */
+  jerry_char_t *path_p; /**< path to the module */
+  size_t base_path_length; /**< base path length for relative difference */
+  jerry_value_t realm; /**< the realm of the module */
+  jerry_value_t module; /**< the module itself */
+} jerry_port_module_t;
+
+/**
+ * Native info descriptor for modules.
+ */
+static const jerry_object_native_info_t jerry_port_module_native_info =
+{
+  .free_cb = NULL,
+};
+
+/**
+ * Default module manager.
+ */
+typedef struct
+{
+  jerry_port_module_t *module_head_p; /**< first module */
+} jerry_port_module_manager_t;
+
+/**
+ * Release known modules.
+ */
+static void
+jerry_port_module_free (jerry_port_module_manager_t *manager_p, /**< module manager */
+                        const jerry_value_t realm) /**< if this argument is object, release only those modules,
+                                                    *   which realm value is equal to this argument. */
+{
+  jerry_port_module_t *module_p = manager_p->module_head_p;
+
+  bool release_all = !jerry_value_is_object (realm);
+
+  jerry_port_module_t *prev_p = NULL;
+
+  while (module_p != NULL)
+  {
+    jerry_port_module_t *next_p = module_p->next_p;
+
+    if (release_all || module_p->realm == realm)
+    {
+      free (module_p->path_p);
+      jerry_release_value (module_p->realm);
+      jerry_release_value (module_p->module);
+
+      free (module_p);
+
+      if (prev_p == NULL)
+      {
+        manager_p->module_head_p = next_p;
+      }
+      else
+      {
+        prev_p->next_p = next_p;
+      }
+    }
+    else
+    {
+      prev_p = module_p;
+    }
+
+    module_p = next_p;
+  }
+} /* jerry_port_module_free */
+
+/**
+ * Initialize the default module manager.
+ */
+static void
+jerry_port_module_manager_init (void *user_data_p)
+{
+  ((jerry_port_module_manager_t *) user_data_p)->module_head_p = NULL;
+} /* jerry_port_module_manager_init */
+
+/**
+ * Deinitialize the default module manager.
+ */
+static void
+jerry_port_module_manager_deinit (void *user_data_p) /**< context pointer to deinitialize */
+{
+  jerry_value_t undef = jerry_create_undefined ();
+  jerry_port_module_free ((jerry_port_module_manager_t *) user_data_p, undef);
+  jerry_release_value (undef);
+} /* jerry_port_module_manager_deinit */
+
+/**
+ * Declare the context data manager for modules.
+ */
+static const jerry_context_data_manager_t jerry_port_module_manager =
+{
+  .init_cb = jerry_port_module_manager_init,
+  .deinit_cb = jerry_port_module_manager_deinit,
+  .bytes_needed = sizeof (jerry_port_module_manager_t)
+};
+
+/**
+ * Default module resolver.
+ *
+ * @return a module object if resolving is successful, an error otherwise
+ */
+jerry_value_t
+jerry_port_module_resolve (const jerry_value_t specifier, /**< module specifier string */
+                           const jerry_value_t referrer, /**< parent module */
+                           void *user_p) /**< user data */
+{
+  (void) user_p;
+
+  jerry_port_module_t *module_p;
+  const jerry_char_t *base_path_p = NULL;
+  size_t base_path_length = 0;
+
+  if (jerry_get_object_native_pointer (referrer, (void **) &module_p, &jerry_port_module_native_info))
+  {
+    base_path_p = module_p->path_p;
+    base_path_length = module_p->base_path_length;
+  }
+
+  jerry_size_t in_path_length = jerry_get_utf8_string_size (specifier);
+  jerry_char_t *in_path_p = (jerry_char_t *) malloc (in_path_length + 1);
+  jerry_string_to_utf8_char_buffer (specifier, in_path_p, in_path_length);
+  in_path_p[in_path_length] = '\0';
+
+  jerry_char_t *path_p = jerry_port_normalize_path (in_path_p, in_path_length, base_path_p, base_path_length);
+
+  if (path_p == NULL)
+  {
+    return jerry_create_error (JERRY_ERROR_COMMON, (const jerry_char_t *) "Out of memory");
+  }
+
+  jerry_value_t realm = jerry_get_global_object ();
+
+  jerry_port_module_manager_t *manager_p;
+  manager_p = (jerry_port_module_manager_t *) jerry_get_context_data (&jerry_port_module_manager);
+
+  module_p = manager_p->module_head_p;
+
+  while (module_p != NULL)
+  {
+    if (module_p->realm == realm
+        && strcmp ((const char *) module_p->path_p, (const char *) path_p) == 0)
+    {
+      free (path_p);
+      free (in_path_p);
+      jerry_release_value (realm);
+      return jerry_acquire_value (module_p->module);
+    }
+
+    module_p = module_p->next_p;
+  }
+
+  size_t source_size;
+  uint8_t *source_p = jerry_port_read_source ((const char *) path_p, &source_size);
+
+  if (source_p == NULL)
+  {
+    free (path_p);
+    free (in_path_p);
+    jerry_release_value (realm);
+    /* TODO: This is incorrect, but makes test262 module tests pass
+     * (they should throw SyntaxError, but not because the module cannot be found). */
+    return jerry_create_error (JERRY_ERROR_SYNTAX, (const jerry_char_t *) "Module file not found");
+  }
+
+  jerry_parse_options_t parse_options;
+  parse_options.options = JERRY_PARSE_MODULE | JERRY_PARSE_HAS_RESOURCE;
+  parse_options.resource_name = jerry_create_string_sz ((const jerry_char_t *) in_path_p, in_path_length);
+
+  jerry_value_t ret_value = jerry_parse (source_p,
+                                         source_size,
+                                         &parse_options);
+
+  jerry_release_value (parse_options.resource_name);
+  jerry_port_release_source (source_p);
+  free (in_path_p);
+
+  if (jerry_value_is_error (ret_value))
+  {
+    free (path_p);
+    jerry_release_value (realm);
+    return ret_value;
+  }
+
+  module_p = (jerry_port_module_t *) malloc (sizeof (jerry_port_module_t));
+
+  module_p->next_p = manager_p->module_head_p;
+  module_p->path_p = path_p;
+  module_p->base_path_length = jerry_port_get_directory_end (module_p->path_p);
+  module_p->realm = realm;
+  module_p->module = jerry_acquire_value (ret_value);
+
+  jerry_set_object_native_pointer (ret_value, module_p, &jerry_port_module_native_info);
+  manager_p->module_head_p = module_p;
+
+  return ret_value;
+} /* jerry_port_module_resolve */
+
+/**
+ * Release known modules.
+ */
+void
+jerry_port_module_release (const jerry_value_t realm) /**< if this argument is object, release only those modules,
+                                                       *   which realm value is equal to this argument. */
+{
+  jerry_port_module_free ((jerry_port_module_manager_t *) jerry_get_context_data (&jerry_port_module_manager),
+                          realm);
+} /* jerry_port_module_release */
diff --git a/targets/esp-idf/jerry_port.c b/targets/esp-idf/jerry_port.c
new file mode 100644
index 00000000..2c0e7b47
--- /dev/null
+++ b/targets/esp-idf/jerry_port.c
@@ -0,0 +1,283 @@
+/* Copyright JS Foundation and other contributors, http://js.foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <limits.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+
+#include "esp_log.h"
+#include "esp_system.h"
+
+#include "jerryscript.h"
+#include "jerryscript-port.h"
+
+static const char TAG[] = "JS";
+
+static esp_log_level_t crosslog(jerry_log_level_t level)
+{
+  switch(level)
+  {
+    case JERRY_LOG_LEVEL_ERROR: return ESP_LOG_ERROR;
+    case JERRY_LOG_LEVEL_WARNING: return ESP_LOG_WARN;
+    case JERRY_LOG_LEVEL_DEBUG: return ESP_LOG_DEBUG;
+    case JERRY_LOG_LEVEL_TRACE: return ESP_LOG_VERBOSE;
+  }
+
+ return ESP_LOG_NONE;
+}
+
+/**
+ * Actual log level
+ */
+static jerry_log_level_t jerry_port_default_log_level = JERRY_LOG_LEVEL_ERROR;
+
+/**
+ * Get the log level
+ *
+ * @return current log level
+ */
+jerry_log_level_t
+jerry_port_default_get_log_level (void)
+{
+  return jerry_port_default_log_level;
+} /* jerry_port_default_get_log_level */
+
+/**
+ * Set the log level
+ */
+void
+jerry_port_default_set_log_level (jerry_log_level_t level) /**< log level */
+{
+  jerry_port_default_log_level = level;
+} /* jerry_port_default_set_log_level */
+
+/**
+ * Default implementation of jerry_port_log. Prints log message to the standard
+ * error with 'vfprintf' if message log level is less than or equal to the
+ * current log level.
+ *
+ * If debugger support is enabled, printing happens first to an in-memory buffer,
+ * which is then sent both to the standard error and to the debugger client.
+ */
+void
+jerry_port_log (jerry_log_level_t level, /**< message log level */
+                const char *format, /**< format string */
+                ...)  /**< parameters */
+{
+  if (level <= jerry_port_default_log_level)
+  {
+    va_list args;
+    va_start (args, format);
+#if defined (JERRY_DEBUGGER) && (JERRY_DEBUGGER == 1)
+    int length = vsnprintf (NULL, 0, format, args);
+    va_end (args);
+    va_start (args, format);
+
+    JERRY_VLA (char, buffer, length + 1);
+    vsnprintf (buffer, (size_t) length + 1, format, args);
+
+    esp_log_write(crosslog(level), TAG, buffer);
+    jerry_debugger_send_log (level, (jerry_char_t *) buffer, (jerry_size_t) length);
+#else /* If jerry-debugger isn't defined, libc is turned on */
+    esp_log_writev(crosslog(level), TAG, format, args);
+#endif /* defined (JERRY_DEBUGGER) && (JERRY_DEBUGGER == 1) */
+    va_end (args);
+  }
+} /* jerry_port_log */
+
+#if defined (JERRY_DEBUGGER) && (JERRY_DEBUGGER == 1)
+
+#define DEBUG_BUFFER_SIZE (256)
+static char debug_buffer[DEBUG_BUFFER_SIZE];
+static int debug_buffer_index = 0;
+
+#endif /* defined (JERRY_DEBUGGER) && (JERRY_DEBUGGER == 1) */
+
+/**
+ * Default implementation of jerry_port_print_char. Uses 'putchar' to
+ * print a single character to standard output.
+ */
+void
+jerry_port_print_char (char c) /**< the character to print */
+{
+  putchar(c);
+
+#if defined (JERRY_DEBUGGER) && (JERRY_DEBUGGER == 1)
+  debug_buffer[debug_buffer_index++] = c;
+
+  if ((debug_buffer_index == DEBUG_BUFFER_SIZE) || (c == '\n'))
+  {
+    jerry_debugger_send_output ((jerry_char_t *) debug_buffer, (jerry_size_t) debug_buffer_index);
+    debug_buffer_index = 0;
+  }
+#endif /* defined (JERRY_DEBUGGER) && (JERRY_DEBUGGER == 1) */
+} /* jerry_port_print_char */
+
+/**
+ * Default implementation of jerry_port_fatal. Calls 'abort' if exit code is
+ * non-zero, 'exit' otherwise.
+ */
+void jerry_port_fatal (jerry_fatal_code_t code) /**< cause of error */
+{
+  ESP_LOGE(TAG, "Fatal error %d", code);
+  vTaskSuspend(NULL);
+  abort();
+} /* jerry_port_fatal */
+
+/**
+ * Pointer to the current context.
+ * Note that it is a global variable, and is not a thread safe implementation.
+ * But I don't see how jerryscript can make that thread-safe, only the appication can
+ */
+static jerry_context_t *current_context_p = NULL;
+
+/**
+ * Set the current_context_p as the passed pointer.
+ */
+void
+jerry_port_default_set_current_context (jerry_context_t *context_p) /**< points to the created context */
+{
+  current_context_p = context_p;
+} /* jerry_port_default_set_current_context */
+
+/**
+ * Get the current context.
+ *
+ * @return the pointer to the current context
+ */
+jerry_context_t *
+jerry_port_get_current_context (void)
+{
+  return current_context_p;
+} /* jerry_port_get_current_context */
+
+/**
+ * Default implementation of jerry_port_sleep. Uses 'nanosleep' or 'usleep' if
+ * available on the system, does nothing otherwise.
+ */
+void jerry_port_sleep (uint32_t sleep_time) /**< milliseconds to sleep */
+{
+  vTaskDelay( sleep_time / portTICK_PERIOD_MS);
+} /* jerry_port_sleep */
+
+/**
+ * Opens file with the given path and reads its source.
+ * @return the source of the file
+ */
+uint8_t *
+jerry_port_read_source (const char *file_name_p, /**< file name */
+                        size_t *out_size_p) /**< [out] read bytes */
+{
+  FILE *file_p = fopen (file_name_p, "rb");
+
+  if (file_p == NULL)
+  {
+    jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Error: Failed to open file: %s\n", file_name_p);
+    return NULL;
+  }
+
+  struct stat info = { };
+  fstat(fileno(file_p), &info);	
+  uint8_t *buffer_p = (uint8_t *) malloc (info.st_size);
+
+  if (buffer_p == NULL)
+  {
+    fclose (file_p);
+
+    jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Error: Failed to allocate memory for file: %s\n", file_name_p);
+    return NULL;
+  }
+
+  size_t bytes_read = fread (buffer_p, 1u, info.st_size, file_p);
+  if (bytes_read != info.st_size)
+  {
+    fclose (file_p);
+    free (buffer_p);
+
+    jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Error: Failed to read file: %s\n", file_name_p);
+    return NULL;
+  }
+
+  fclose (file_p);
+  *out_size_p = bytes_read;
+
+  return buffer_p;
+} /* jerry_port_read_source */
+
+/**
+ * Release the previously opened file's content.
+ */
+void
+jerry_port_release_source (uint8_t *buffer_p) /**< buffer to free */
+{
+  free (buffer_p);
+} /* jerry_port_release_source */
+
+/**
+ * Default implementation of jerry_port_get_local_time_zone_adjustment. Uses the 'tm_gmtoff' field
+ * of 'struct tm' (a GNU extension) filled by 'localtime_r' if available on the
+ * system, does nothing otherwise.
+ *
+ * @return offset between UTC and local time at the given unix timestamp, if
+ *         available. Otherwise, returns 0, assuming UTC time.
+ */
+double jerry_port_get_local_time_zone_adjustment (double unix_ms,  /**< ms since unix epoch */
+                                                  bool is_utc)  /**< is the time above in UTC? */
+{
+  struct tm tm;
+  char buf[8];
+  time_t now = (time_t) (unix_ms / 1000);
+
+  localtime_r (&now, &tm);
+
+  if (!is_utc)
+  {
+    strftime(buf, 8, "%z", &tm);
+    now -= -atof(buf) * 3600 * 1000 / 100;
+    localtime_r (&now, &tm);
+  }
+
+  strftime(buf, 8, "%z", &tm);
+
+  return -atof(buf) * 3600 * 1000 / 100;
+} /* jerry_port_get_local_time_zone_adjustment */
+
+/**
+ * Default implementation of jerry_port_get_current_time. Uses 'gettimeofday' if
+ * available on the system, does nothing otherwise.
+ *
+ * @return milliseconds since Unix epoch - if 'gettimeofday' is available and
+ *                                         executed successfully,
+ *         0 - otherwise.
+ */
+double jerry_port_get_current_time (void)
+{
+  struct timeval tv;
+
+  if (gettimeofday (&tv, NULL) == 0)
+  {
+    return ((double) tv.tv_sec) * 1000.0 + ((double) tv.tv_usec) / 1000.0;
+  }
+  return 0.0;
+} /* jerry_port_get_current_time */
+
diff --git a/targets/esp-idf/module.c b/targets/esp-idf/module.c
deleted file mode 100644
index 3f56ca55..00000000
--- a/targets/esp-idf/module.c
+++ /dev/null
@@ -1,114 +0,0 @@
-/* Copyright JS Foundation and other contributors, http://js.foundation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <limits.h>
-#include <stdarg.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-#include "jerryscript.h"
-#include "jerryscript-port.h"
-
-/**
- * Opens file with the given path and reads its source.
- * @return the source of the file
- */
-uint8_t *
-jerry_port_read_source (const char *file_name_p, /**< file name */
-                        size_t *out_size_p) /**< [out] read bytes */
-{
-  FILE *file_p = fopen (file_name_p, "rb");
-
-  if (file_p == NULL)
-  {
-    jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Error: Failed to open file: %s\n", file_name_p);
-    return NULL;
-  }
-
-  struct stat info = { };
-  fstat(fileno(file_p), &info);	
-  uint8_t *buffer_p = (uint8_t *) malloc (info.st_size);
-
-  if (buffer_p == NULL)
-  {
-    fclose (file_p);
-
-    jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Error: Failed to allocate memory for file: %s\n", file_name_p);
-    return NULL;
-  }
-
-  size_t bytes_read = fread (buffer_p, 1u, info.st_size, file_p);
-  if (bytes_read != info.st_size)
-  {
-    fclose (file_p);
-    free (buffer_p);
-
-    jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Error: Failed to read file: %s\n", file_name_p);
-    return NULL;
-  }
-
-  fclose (file_p);
-  *out_size_p = bytes_read;
-
-  return buffer_p;
-} /* jerry_port_read_source */
-
-/**
- * Release the previously opened file's content.
- */
-void
-jerry_port_release_source (uint8_t *buffer_p) /**< buffer to free */
-{
-  free (buffer_p);
-} /* jerry_port_release_source */
-
-/**
- * Normalize a file path
- *
- * @return length of the path written to the output buffer
- */
-size_t
-jerry_port_normalize_path (const char *in_path_p,   /**< input file path */
-                           char *out_buf_p,         /**< output buffer */
-                           size_t out_buf_size,     /**< size of output buffer */
-                           char *base_file_p)       /**< base file path */
-{
-  size_t ret = strlen(base_file_p) + strlen(in_path_p) + 1;
-
-  if (ret < out_buf_size) {
-    strcpy (out_buf_p, base_file_p);
-    strcat (out_buf_p, "/");
-    strcat (out_buf_p, in_path_p);
-    return ret;
-  }
-
-  return 0; 
-} /* jerry_port_normalize_path */
-
-/**
- * Get the module object of a native module.
- *
- * @return Undefined, if 'name' is not a native module
- *         jerry_value_t containing the module object, otherwise
- */
-jerry_value_t
-jerry_port_get_native_module (jerry_value_t name) /**< module specifier */
-{
-  (void) name;
-  return jerry_create_undefined ();
-} /* jerry_port_get_native_module */