64 lines · c
1// SPDX-License-Identifier: GPL-2.02#include <test_progs.h>3#include "stacktrace_map_skip.skel.h"4 5#define TEST_STACK_DEPTH 26 7void test_stacktrace_map_skip(void)8{9 struct stacktrace_map_skip *skel;10 int stackid_hmap_fd, stackmap_fd, stack_amap_fd;11 int err, stack_trace_len;12 13 skel = stacktrace_map_skip__open_and_load();14 if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))15 return;16 17 /* find map fds */18 stackid_hmap_fd = bpf_map__fd(skel->maps.stackid_hmap);19 if (!ASSERT_GE(stackid_hmap_fd, 0, "stackid_hmap fd"))20 goto out;21 22 stackmap_fd = bpf_map__fd(skel->maps.stackmap);23 if (!ASSERT_GE(stackmap_fd, 0, "stackmap fd"))24 goto out;25 26 stack_amap_fd = bpf_map__fd(skel->maps.stack_amap);27 if (!ASSERT_GE(stack_amap_fd, 0, "stack_amap fd"))28 goto out;29 30 skel->bss->pid = getpid();31 32 err = stacktrace_map_skip__attach(skel);33 if (!ASSERT_OK(err, "skel_attach"))34 goto out;35 36 /* give some time for bpf program run */37 sleep(1);38 39 /* disable stack trace collection */40 skel->bss->control = 1;41 42 /* for every element in stackid_hmap, we can find a corresponding one43 * in stackmap, and vise versa.44 */45 err = compare_map_keys(stackid_hmap_fd, stackmap_fd);46 if (!ASSERT_OK(err, "compare_map_keys stackid_hmap vs. stackmap"))47 goto out;48 49 err = compare_map_keys(stackmap_fd, stackid_hmap_fd);50 if (!ASSERT_OK(err, "compare_map_keys stackmap vs. stackid_hmap"))51 goto out;52 53 stack_trace_len = TEST_STACK_DEPTH * sizeof(__u64);54 err = compare_stack_ips(stackmap_fd, stack_amap_fd, stack_trace_len);55 if (!ASSERT_OK(err, "compare_stack_ips stackmap vs. stack_amap"))56 goto out;57 58 if (!ASSERT_EQ(skel->bss->failed, 0, "skip_failed"))59 goto out;60 61out:62 stacktrace_map_skip__destroy(skel);63}64