1 files changed, 0 insertions, 367 deletions
diff --git a/tools/perf/tests/bpf.c b/tools/perf/tests/bpf.c
deleted file mode 100644
index 5d20bf8397f0..000000000000
--- a/tools/perf/tests/bpf.c
+++ /dev/null
@@ -1,367 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <errno.h>
-#include <stdio.h>
-#include <sys/epoll.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <util/record.h>
-#include <util/util.h>
-#include <util/bpf-loader.h>
-#include <util/evlist.h>
-#include <linux/bpf.h>
-#include <linux/filter.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <api/fs/fs.h>
-#include <bpf/bpf.h>
-#include <perf/mmap.h>
-#include "tests.h"
-#include "llvm.h"
-#include "debug.h"
-#include "parse-events.h"
-#include "util/mmap.h"
-#define NR_ITERS       111
-#define PERF_TEST_BPF_PATH "/sys/fs/bpf/perf_test"
-
-#ifdef HAVE_LIBBPF_SUPPORT
-
-static int epoll_pwait_loop(void)
-{
-	int i;
-
-	/* Should fail NR_ITERS times */
-	for (i = 0; i < NR_ITERS; i++)
-		epoll_pwait(-(i + 1), NULL, 0, 0, NULL);
-	return 0;
-}
-
-#ifdef HAVE_BPF_PROLOGUE
-
-static int llseek_loop(void)
-{
-	int fds[2], i;
-
-	fds[0] = open("/dev/null", O_RDONLY);
-	fds[1] = open("/dev/null", O_RDWR);
-
-	if (fds[0] < 0 || fds[1] < 0)
-		return -1;
-
-	for (i = 0; i < NR_ITERS; i++) {
-		lseek(fds[i % 2], i, (i / 2) % 2 ? SEEK_CUR : SEEK_SET);
-		lseek(fds[(i + 1) % 2], i, (i / 2) % 2 ? SEEK_CUR : SEEK_SET);
-	}
-	close(fds[0]);
-	close(fds[1]);
-	return 0;
-}
-
-#endif
-
-static struct {
-	enum test_llvm__testcase prog_id;
-	const char *desc;
-	const char *name;
-	const char *msg_compile_fail;
-	const char *msg_load_fail;
-	int (*target_func)(void);
-	int expect_result;
-	bool	pin;
-} bpf_testcase_table[] = {
-	{
-		.prog_id	  = LLVM_TESTCASE_BASE,
-		.desc		  = "Basic BPF filtering",
-		.name		  = "[basic_bpf_test]",
-		.msg_compile_fail = "fix 'perf test LLVM' first",
-		.msg_load_fail	  = "load bpf object failed",
-		.target_func	  = &epoll_pwait_loop,
-		.expect_result	  = (NR_ITERS + 1) / 2,
-	},
-	{
-		.prog_id	  = LLVM_TESTCASE_BASE,
-		.desc		  = "BPF pinning",
-		.name		  = "[bpf_pinning]",
-		.msg_compile_fail = "fix kbuild first",
-		.msg_load_fail	  = "check your vmlinux setting?",
-		.target_func	  = &epoll_pwait_loop,
-		.expect_result	  = (NR_ITERS + 1) / 2,
-		.pin 		  = true,
-	},
-#ifdef HAVE_BPF_PROLOGUE
-	{
-		.prog_id	  = LLVM_TESTCASE_BPF_PROLOGUE,
-		.desc		  = "BPF prologue generation",
-		.name		  = "[bpf_prologue_test]",
-		.msg_compile_fail = "fix kbuild first",
-		.msg_load_fail	  = "check your vmlinux setting?",
-		.target_func	  = &llseek_loop,
-		.expect_result	  = (NR_ITERS + 1) / 4,
-	},
-#endif
-	{
-		.prog_id	  = LLVM_TESTCASE_BPF_RELOCATION,
-		.desc		  = "BPF relocation checker",
-		.name		  = "[bpf_relocation_test]",
-		.msg_compile_fail = "fix 'perf test LLVM' first",
-		.msg_load_fail	  = "libbpf error when dealing with relocation",
-	},
-};
-
-static int do_test(struct bpf_object *obj, int (*func)(void),
-		   int expect)
-{
-	struct record_opts opts = {
-		.target = {
-			.uid = UINT_MAX,
-			.uses_mmap = true,
-		},
-		.freq	      = 0,
-		.mmap_pages   = 256,
-		.default_interval = 1,
-	};
-
-	char pid[16];
-	char sbuf[STRERR_BUFSIZE];
-	struct evlist *evlist;
-	int i, ret = TEST_FAIL, err = 0, count = 0;
-
-	struct parse_events_state parse_state;
-	struct parse_events_error parse_error;
-
-	bzero(&parse_error, sizeof(parse_error));
-	bzero(&parse_state, sizeof(parse_state));
-	parse_state.error = &parse_error;
-	INIT_LIST_HEAD(&parse_state.list);
-
-	err = parse_events_load_bpf_obj(&parse_state, &parse_state.list, obj, NULL);
-	if (err || list_empty(&parse_state.list)) {
-		pr_debug("Failed to add events selected by BPF\n");
-		return TEST_FAIL;
-	}
-
-	snprintf(pid, sizeof(pid), "%d", getpid());
-	pid[sizeof(pid) - 1] = '\0';
-	opts.target.tid = opts.target.pid = pid;
-
-	/* Instead of perf_evlist__new_default, don't add default events */
-	evlist = evlist__new();
-	if (!evlist) {
-		pr_debug("Not enough memory to create evlist\n");
-		return TEST_FAIL;
-	}
-
-	err = perf_evlist__create_maps(evlist, &opts.target);
-	if (err < 0) {
-		pr_debug("Not enough memory to create thread/cpu maps\n");
-		goto out_delete_evlist;
-	}
-
-	perf_evlist__splice_list_tail(evlist, &parse_state.list);
-	evlist->nr_groups = parse_state.nr_groups;
-
-	perf_evlist__config(evlist, &opts, NULL);
-
-	err = evlist__open(evlist);
-	if (err < 0) {
-		pr_debug("perf_evlist__open: %s\n",
-			 str_error_r(errno, sbuf, sizeof(sbuf)));
-		goto out_delete_evlist;
-	}
-
-	err = evlist__mmap(evlist, opts.mmap_pages);
-	if (err < 0) {
-		pr_debug("evlist__mmap: %s\n",
-			 str_error_r(errno, sbuf, sizeof(sbuf)));
-		goto out_delete_evlist;
-	}
-
-	evlist__enable(evlist);
-	(*func)();
-	evlist__disable(evlist);
-
-	for (i = 0; i < evlist->core.nr_mmaps; i++) {
-		union perf_event *event;
-		struct mmap *md;
-
-		md = &evlist->mmap[i];
-		if (perf_mmap__read_init(&md->core) < 0)
-			continue;
-
-		while ((event = perf_mmap__read_event(&md->core)) != NULL) {
-			const u32 type = event->header.type;
-
-			if (type == PERF_RECORD_SAMPLE)
-				count ++;
-		}
-		perf_mmap__read_done(&md->core);
-	}
-
-	if (count != expect) {
-		pr_debug("BPF filter result incorrect, expected %d, got %d samples\n", expect, count);
-		goto out_delete_evlist;
-	}
-
-	ret = TEST_OK;
-
-out_delete_evlist:
-	evlist__delete(evlist);
-	return ret;
-}
-
-static struct bpf_object *
-prepare_bpf(void *obj_buf, size_t obj_buf_sz, const char *name)
-{
-	struct bpf_object *obj;
-
-	obj = bpf__prepare_load_buffer(obj_buf, obj_buf_sz, name);
-	if (IS_ERR(obj)) {
-		pr_debug("Compile BPF program failed.\n");
-		return NULL;
-	}
-	return obj;
-}
-
-static int __test__bpf(int idx)
-{
-	int ret;
-	void *obj_buf;
-	size_t obj_buf_sz;
-	struct bpf_object *obj;
-
-	ret = test_llvm__fetch_bpf_obj(&obj_buf, &obj_buf_sz,
-				       bpf_testcase_table[idx].prog_id,
-				       true, NULL);
-	if (ret != TEST_OK || !obj_buf || !obj_buf_sz) {
-		pr_debug("Unable to get BPF object, %s\n",
-			 bpf_testcase_table[idx].msg_compile_fail);
-		if (idx == 0)
-			return TEST_SKIP;
-		else
-			return TEST_FAIL;
-	}
-
-	obj = prepare_bpf(obj_buf, obj_buf_sz,
-			  bpf_testcase_table[idx].name);
-	if ((!!bpf_testcase_table[idx].target_func) != (!!obj)) {
-		if (!obj)
-			pr_debug("Fail to load BPF object: %s\n",
-				 bpf_testcase_table[idx].msg_load_fail);
-		else
-			pr_debug("Success unexpectedly: %s\n",
-				 bpf_testcase_table[idx].msg_load_fail);
-		ret = TEST_FAIL;
-		goto out;
-	}
-
-	if (obj) {
-		ret = do_test(obj,
-			      bpf_testcase_table[idx].target_func,
-			      bpf_testcase_table[idx].expect_result);
-		if (ret != TEST_OK)
-			goto out;
-		if (bpf_testcase_table[idx].pin) {
-			int err;
-
-			if (!bpf_fs__mount()) {
-				pr_debug("BPF filesystem not mounted\n");
-				ret = TEST_FAIL;
-				goto out;
-			}
-			err = mkdir(PERF_TEST_BPF_PATH, 0777);
-			if (err && errno != EEXIST) {
-				pr_debug("Failed to make perf_test dir: %s\n",
-					 strerror(errno));
-				ret = TEST_FAIL;
-				goto out;
-			}
-			if (bpf_object__pin(obj, PERF_TEST_BPF_PATH))
-				ret = TEST_FAIL;
-			if (rm_rf(PERF_TEST_BPF_PATH))
-				ret = TEST_FAIL;
-		}
-	}
-
-out:
-	bpf__clear();
-	return ret;
-}
-
-int test__bpf_subtest_get_nr(void)
-{
-	return (int)ARRAY_SIZE(bpf_testcase_table);
-}
-
-const char *test__bpf_subtest_get_desc(int i)
-{
-	if (i < 0 || i >= (int)ARRAY_SIZE(bpf_testcase_table))
-		return NULL;
-	return bpf_testcase_table[i].desc;
-}
-
-static int check_env(void)
-{
-	int err;
-	unsigned int kver_int;
-	char license[] = "GPL";
-
-	struct bpf_insn insns[] = {
-		BPF_MOV64_IMM(BPF_REG_0, 1),
-		BPF_EXIT_INSN(),
-	};
-
-	err = fetch_kernel_version(&kver_int, NULL, 0);
-	if (err) {
-		pr_debug("Unable to get kernel version\n");
-		return err;
-	}
-
-	err = bpf_load_program(BPF_PROG_TYPE_KPROBE, insns,
-			       sizeof(insns) / sizeof(insns[0]),
-			       license, kver_int, NULL, 0);
-	if (err < 0) {
-		pr_err("Missing basic BPF support, skip this test: %s\n",
-		       strerror(errno));
-		return err;
-	}
-	close(err);
-
-	return 0;
-}
-
-int test__bpf(struct test *test __maybe_unused, int i)
-{
-	int err;
-
-	if (i < 0 || i >= (int)ARRAY_SIZE(bpf_testcase_table))
-		return TEST_FAIL;
-
-	if (geteuid() != 0) {
-		pr_debug("Only root can run BPF test\n");
-		return TEST_SKIP;
-	}
-
-	if (check_env())
-		return TEST_SKIP;
-
-	err = __test__bpf(i);
-	return err;
-}
-
-#else
-int test__bpf_subtest_get_nr(void)
-{
-	return 0;
-}
-
-const char *test__bpf_subtest_get_desc(int i __maybe_unused)
-{
-	return NULL;
-}
-
-int test__bpf(struct test *test __maybe_unused, int i __maybe_unused)
-{
-	pr_debug("Skip BPF test because BPF support is not compiled\n");
-	return TEST_SKIP;
-}
-#endif