samples/bpf/syscall_nrs.c

Source file repositories/reference/linux-study-clean/samples/bpf/syscall_nrs.c

File Facts

System
Linux kernel
Corpus path
samples/bpf/syscall_nrs.c
Extension
.c
Size
448 bytes
Lines
25
Domain
Support Tooling And Documentation
Bucket
samples
Inferred role
Support Tooling And Documentation: syscall or user/kernel boundary
Status
core implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
#include <uapi/linux/unistd.h>
#include <linux/kbuild.h>

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wmissing-prototypes"

#define SYSNR(_NR) DEFINE(SYS ## _NR, _NR)

void syscall_defines(void)
{
	COMMENT("Linux system call numbers.");
	SYSNR(__NR_write);
	SYSNR(__NR_read);
#ifdef __NR_mmap2
	SYSNR(__NR_mmap2);
#endif
#ifdef __NR_mmap
	SYSNR(__NR_mmap);
#endif

}

#pragma GCC diagnostic pop

Annotation

Implementation Notes