[deliverable/linux.git] / tools / build / feature / test-bpf.c

#include <asm/unistd.h>
#include <linux/bpf.h>
#include <unistd.h>

#ifndef __NR_bpf
# if defined(__i386__)
#  define __NR_bpf 357
# elif defined(__x86_64__)
#  define __NR_bpf 321
# elif defined(__aarch64__)
#  define __NR_bpf 280
#  error __NR_bpf not defined. libbpf does not support your arch.
# endif
#endif

int main(void)
{
	union bpf_attr attr;

	/* Check fields in attr */
	attr.prog_type = BPF_PROG_TYPE_KPROBE;
	attr.insn_cnt = 0;
	attr.insns = 0;
	attr.license = 0;
	attr.log_buf = 0;
	attr.log_size = 0;
	attr.log_level = 0;
	attr.kern_version = 0;

	attr = attr;
	/*
	 * Test existence of __NR_bpf and BPF_PROG_LOAD.
	 * This call should fail if we run the testcase.
	 */
	return syscall(__NR_bpf, BPF_PROG_LOAD, attr, sizeof(attr));
}
Commit	Line	Data
8f9e05fb	1	#include <asm/unistd.h>
1b76c13e	2	#include <linux/bpf.h>
8f9e05fb WN	3	#include <unistd.h>
	4
	5	#ifndef __NR_bpf
	6	# if defined(__i386__)
	7	# define __NR_bpf 357
	8	# elif defined(__x86_64__)
	9	# define __NR_bpf 321
	10	# elif defined(__aarch64__)
	11	# define __NR_bpf 280
	12	# error __NR_bpf not defined. libbpf does not support your arch.
	13	# endif
	14	#endif
1b76c13e WN	15
	16	int main(void)
	17	{
	18	union bpf_attr attr;
	19
8f9e05fb	20	/* Check fields in attr */
1b76c13e WN	21	attr.prog_type = BPF_PROG_TYPE_KPROBE;
	22	attr.insn_cnt = 0;
	23	attr.insns = 0;
	24	attr.license = 0;
	25	attr.log_buf = 0;
	26	attr.log_size = 0;
	27	attr.log_level = 0;
	28	attr.kern_version = 0;
	29
	30	attr = attr;
8f9e05fb WN	31	/*
	32	* Test existence of __NR_bpf and BPF_PROG_LOAD.
	33	* This call should fail if we run the testcase.
	34	*/
	35	return syscall(__NR_bpf, BPF_PROG_LOAD, attr, sizeof(attr));
1b76c13e	36	}