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>
32 lines
606 B
C
32 lines
606 B
C
/*
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* Copyright (c) 2019 Nordic Semiconductor
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "hello_world_driver.h"
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#include <stdio.h>
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#include <zephyr/kernel.h>
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const struct device *dev;
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static void user_entry(void *p1, void *p2, void *p3)
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{
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hello_world_print(dev);
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}
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int main(void)
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{
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printk("Hello World from the app!\n");
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dev = device_get_binding("CUSTOM_DRIVER");
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__ASSERT(dev, "Failed to get device binding");
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printk("device is %p, name is %s\n", dev, dev->name);
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k_object_access_grant(dev, k_current_get());
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k_thread_user_mode_enter(user_entry, NULL, NULL, NULL);
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return 0;
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}
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