samples, bpf: Move read_trace_pipe to trace_helpers

sockex1-objs := sockex1_user.o

sockex2-objs := sockex2_user.o

sockex3-objs := bpf_load.o sockex3_user.o

tracex1-objs := bpf_load.o tracex1_user.o

tracex1-objs := bpf_load.o tracex1_user.o $(TRACE_HELPERS)

tracex2-objs := bpf_load.o tracex2_user.o

tracex3-objs := bpf_load.o tracex3_user.o

tracex4-objs := bpf_load.o tracex4_user.o

tracex5-objs := bpf_load.o tracex5_user.o

tracex5-objs := bpf_load.o tracex5_user.o $(TRACE_HELPERS)

tracex6-objs := bpf_load.o tracex6_user.o

tracex7-objs := bpf_load.o tracex7_user.o

test_probe_write_user-objs := bpf_load.o test_probe_write_user_user.o

{

	return do_load_bpf_file(path, fixup_map);

}

void read_trace_pipe(void)

{

	int trace_fd;

	trace_fd = open(DEBUGFS "trace_pipe", O_RDONLY, 0);

	if (trace_fd < 0)

		return;

	while (1) {

		static char buf[4096];

		ssize_t sz;

		sz = read(trace_fd, buf, sizeof(buf) - 1);

		if (sz > 0) {

			buf[sz] = 0;

			puts(buf);

		}

	}

}

int load_bpf_file(char *path);

int load_bpf_file_fixup_map(const char *path, fixup_map_cb fixup_map);

void read_trace_pipe(void);

int bpf_set_link_xdp_fd(int ifindex, int fd, __u32 flags);

#endif

#include <unistd.h>

#include <bpf/bpf.h>

#include "bpf_load.h"

#include "trace_helpers.h"

int main(int ac, char **argv)

{

#include <bpf/bpf.h>

#include "bpf_load.h"

#include <sys/resource.h>

#include "trace_helpers.h"

/* install fake seccomp program to enable seccomp code path inside the kernel,

 * so that our kprobe attached to seccomp_phase1() can be triggered