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
1.1 KiB
C
44 lines
1.1 KiB
C
/*
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* Copyright (c) 2020 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#if defined(CONFIG_APP_FORMATTER_PRINTK)
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#include <zephyr/sys/printk.h>
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#define PRINT_S "printk"
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#define PRINT(...) printk(__VA_ARGS__)
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#elif defined(CONFIG_APP_FORMATTER_PRINTF)
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#include <stdio.h>
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#ifdef CONFIG_NEWLIB_LIBC
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#define PRINT_S "printf/newlib"
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#else /* NEWLIB_LIBC */
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#define PRINT_S "printf"
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#endif /* NEWLIB_LIBC */
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#define PRINT(...) printf(__VA_ARGS__)
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#elif defined(CONFIG_APP_FORMATTER_PRINTFCB)
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#include <zephyr/sys/cbprintf.h>
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#ifdef CONFIG_NEWLIB_LIBC
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#define PRINT_S "printfcb/newlib"
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#else /* NEWLIB_LIBC */
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#define PRINT_S "printfcb"
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#endif /* NEWLIB_LIBC */
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#define PRINT(...) printfcb(__VA_ARGS__)
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#elif defined(CONFIG_APP_FORMATTER_FPRINTF)
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#include <stdio.h>
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#define PRINT_S "fprintf"
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#define PRINT(...) fprintf(stdout, __VA_ARGS__)
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#elif defined(CONFIG_APP_FORMATTER_FPRINTFCB)
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#include <zephyr/sys/cbprintf.h>
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#define PRINT_S "fprintfcb"
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#define PRINT(...) fprintfcb(stdout, __VA_ARGS__)
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#else
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#error Unsupported configuration
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#endif
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int main(void)
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{
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PRINT("Hello with %s on %s\nComplete\n", PRINT_S, CONFIG_BOARD);
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return 0;
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}
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