0b90fd5adf
As both C and C++ standards require applications running under an OS to
return 'int', adapt that for Zephyr to align with those standard. This also
eliminates errors when building with clang when not using -ffreestanding,
and reduces the need for compiler flags to silence warnings for both clang
and gcc.
Most of these changes were automated using coccinelle with the following
script:
@@
@@
- void
+ int
main(...) {
...
- return;
+ return 0;
...
}
Approximately 40 files had to be edited by hand as coccinelle was unable to
fix them.
Signed-off-by: Keith Packard <keithp@keithp.com>
44 lines
800 B
C
44 lines
800 B
C
/*
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* Copyright (c) 2016 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/kernel.h>
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#include <zephyr/drivers/gpio.h>
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/* 1000 msec = 1 sec */
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#define SLEEP_TIME_MS 1000
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/* The devicetree node identifier for the "led0" alias. */
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#define LED0_NODE DT_ALIAS(led0)
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/*
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* A build error on this line means your board is unsupported.
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* See the sample documentation for information on how to fix this.
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*/
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static const struct gpio_dt_spec led = GPIO_DT_SPEC_GET(LED0_NODE, gpios);
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int main(void)
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{
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int ret;
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if (!gpio_is_ready_dt(&led)) {
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return 0;
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}
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ret = gpio_pin_configure_dt(&led, GPIO_OUTPUT_ACTIVE);
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if (ret < 0) {
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return 0;
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}
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while (1) {
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ret = gpio_pin_toggle_dt(&led);
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if (ret < 0) {
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return 0;
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}
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k_msleep(SLEEP_TIME_MS);
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}
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return 0;
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}
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