Import of the watch repository from Pebble

third_party/jerryscript/targets/zephyr/src/Makefile

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+# Copyright © 2016 Intel Corporation
+#
+# 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.
+
+ifdef V
+$(info Compiling application)
+endif
+
+# Adding path for jerry script APIs
+ZEPHYRINCLUDE += -I$(JERRY_INCLUDE)
+
+obj-y += main-zephyr.o getline-zephyr.o

third_party/jerryscript/targets/zephyr/src/getline-zephyr.c

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+/* Copyright (c) 2016 Linaro
+ *
+ * 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 <zephyr.h>
+#include <uart.h>
+#include <drivers/console/uart_console.h>
+#include "getline-zephyr.h"
+
+/* While app processes one input line, Zephyr will have another line
+   buffer to accumulate more console input. */
+static struct uart_console_input line_bufs[2];
+
+static struct nano_fifo free_queue;
+static struct nano_fifo used_queue;
+
+char *zephyr_getline(void)
+{
+  static struct uart_console_input *cmd;
+
+  /* Recycle cmd buffer returned previous time */
+  if (cmd != NULL)
+  {
+    nano_fifo_put(&free_queue, cmd);
+  }
+
+  cmd = nano_fifo_get(&used_queue, TICKS_UNLIMITED);
+  return cmd->line;
+}
+
+void zephyr_getline_init(void)
+{
+  int i;
+
+  nano_fifo_init(&used_queue);
+  nano_fifo_init(&free_queue);
+  for (i = 0; i < sizeof(line_bufs) / sizeof(*line_bufs); i++)
+  {
+    nano_fifo_put(&free_queue, &line_bufs[i]);
+  }
+
+  /* Zephyr UART handler takes an empty buffer from free_queue,
+     stores UART input in it until EOL, and then puts it into
+     used_queue. */
+  uart_register_input(&free_queue, &used_queue, NULL);
+}

third_party/jerryscript/targets/zephyr/src/getline-zephyr.h

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+/* Copyright (c) 2016 Linaro
+ *
+ * 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.
+ */
+
+void zephyr_getline_init(void);
+char *zephyr_getline(void);

third_party/jerryscript/targets/zephyr/src/jerry-entry.c

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+/* Copyright 2016 Intel Corporation
+ *
+ * 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 "jerry-port.h"
+
+/**
+ * Provide console message implementation for the engine.
+ */
+void
+jerry_port_console (const char *format, /**< format string */
+                    ...) /**< parameters */
+{
+  va_list args;
+  va_start (args, format);
+  vfprintf (stdout, format, args);
+  va_end (args);
+} /* jerry_port_console */
+
+
+/**
+ * Provide log message implementation for the engine.
+ */
+void
+jerry_port_log (jerry_log_level_t level, /**< log level */
+                const char *format, /**< format string */
+                ...)  /**< parameters */
+{
+  (void) level; /* ignore log level */
+
+  va_list args;
+  va_start (args, format);
+  vfprintf (stderr, format, args);
+  va_end (args);
+} /* jerry_port_log */

third_party/jerryscript/targets/zephyr/src/main-zephyr.c

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+/* Copyright 2016 Intel Corporation
+ *
+ * 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 <zephyr.h>
+#include <misc/printk.h>
+#include <misc/shell.h>
+#include "getline-zephyr.h"
+
+#include "jerry-api.h"
+
+static jerry_value_t print_function;
+
+static int shell_cmd_handler (char *source_buffer)
+{
+  jerry_value_t ret_val;
+
+  ret_val = jerry_eval ((jerry_char_t *) source_buffer,
+    strlen (source_buffer),
+    false);
+
+  if (jerry_value_has_error_flag (ret_val))
+  {
+    /* User-friendly error messages require at least "cp" JerryScript
+       profile. Include a message prefix in case "cp_minimal" profile
+       is used. */
+    printf ("Error executing statement: ");
+    /* Clear error flag, otherwise print call below won't produce any
+       output. */
+    jerry_value_clear_error_flag (&ret_val);
+  }
+
+  if (!jerry_value_has_error_flag (print_function))
+  {
+    jerry_value_t ret_val_print = jerry_call_function (print_function,
+      jerry_create_undefined (),
+      &ret_val,
+      1);
+    jerry_release_value (ret_val_print);
+  }
+
+  jerry_release_value (ret_val);
+
+  return 0;
+} /* shell_cmd_handler */
+
+void main (void)
+{
+  uint32_t zephyr_ver = sys_kernel_version_get ();
+  printf ("JerryScript build: " __DATE__ " " __TIME__ "\n");
+  printf ("JerryScript API %d.%d\n", JERRY_API_MAJOR_VERSION, JERRY_API_MINOR_VERSION);
+  printf ("Zephyr version %d.%d.%d\n", (int)SYS_KERNEL_VER_MAJOR (zephyr_ver),
+    (int)SYS_KERNEL_VER_MINOR (zephyr_ver),
+    (int)SYS_KERNEL_VER_PATCHLEVEL (zephyr_ver));
+
+  zephyr_getline_init ();
+  jerry_init (JERRY_INIT_EMPTY);
+  jerry_value_t global_obj_val = jerry_get_global_object ();
+
+  jerry_value_t print_func_name_val = jerry_create_string ((jerry_char_t *) "print");
+  print_function = jerry_get_property (global_obj_val, print_func_name_val);
+  jerry_release_value (print_func_name_val);
+  jerry_release_value (global_obj_val);
+  if (jerry_value_has_error_flag (print_function))
+  {
+    printf ("Error: could not look up print function, expression results won't be printed\n");
+  }
+
+  while (1)
+  {
+    char *s;
+    printf("js> ");
+    fflush(stdout);
+    s = zephyr_getline ();
+    if (*s)
+    {
+      shell_cmd_handler (s);
+    }
+  }
+
+  /* As we never retturn from REPL above, don't call jerry_cleanup() here. */
+} /* main */