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c50fc1cbfd
In some environments (gcc treated as error in W=1, which is default), if we
make -C samples/bpf/, it will be stopped because of
"no previous prototype" error like this:
../samples/bpf/syscall_nrs.c:7:6:
error: no previous prototype for ‘syscall_defines’ [-Werror=missing-prototypes]
void syscall_defines(void)
^~~~~~~~~~~~~~~
Actually, this file meets our expectatations because it will be converted to
a .h file. In this way, it's correct. Considering the warnning stopping us
compiling, we can remove the warnning directly.
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/all/20241001012540.39007-1-kerneljasonxing@gmail.com/
Link: https://lore.kernel.org/all/CAEf4BzaVdr_0kQo=+jPLN++PvcU6pwTjaPVEA880kgDN94TZYw@mail.gmail.com/
Link: https://lore.kernel.org/bpf/20241001233242.98679-1-kerneljasonxing@gmail.com
24 lines
448 B
C
24 lines
448 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <uapi/linux/unistd.h>
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#include <linux/kbuild.h>
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wmissing-prototypes"
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#define SYSNR(_NR) DEFINE(SYS ## _NR, _NR)
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void syscall_defines(void)
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{
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COMMENT("Linux system call numbers.");
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SYSNR(__NR_write);
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SYSNR(__NR_read);
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#ifdef __NR_mmap2
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SYSNR(__NR_mmap2);
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#endif
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#ifdef __NR_mmap
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SYSNR(__NR_mmap);
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#endif
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}
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#pragma GCC diagnostic pop
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