63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <test_progs.h>
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#include "stacktrace_map.skel.h"
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void test_stacktrace_map(void)
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{
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struct stacktrace_map *skel;
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int control_map_fd, stackid_hmap_fd, stackmap_fd, stack_amap_fd;
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int err, stack_trace_len;
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__u32 key, val, stack_id, duration = 0;
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__u64 stack[PERF_MAX_STACK_DEPTH];
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skel = stacktrace_map__open_and_load();
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if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
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return;
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control_map_fd = bpf_map__fd(skel->maps.control_map);
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stackid_hmap_fd = bpf_map__fd(skel->maps.stackid_hmap);
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stackmap_fd = bpf_map__fd(skel->maps.stackmap);
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stack_amap_fd = bpf_map__fd(skel->maps.stack_amap);
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err = stacktrace_map__attach(skel);
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if (!ASSERT_OK(err, "skel_attach"))
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goto out;
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/* give some time for bpf program run */
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sleep(1);
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/* disable stack trace collection */
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key = 0;
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val = 1;
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bpf_map_update_elem(control_map_fd, &key, &val, 0);
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/* for every element in stackid_hmap, we can find a corresponding one
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* in stackmap, and vice versa.
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*/
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err = compare_map_keys(stackid_hmap_fd, stackmap_fd);
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if (CHECK(err, "compare_map_keys stackid_hmap vs. stackmap",
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"err %d errno %d\n", err, errno))
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goto out;
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err = compare_map_keys(stackmap_fd, stackid_hmap_fd);
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if (CHECK(err, "compare_map_keys stackmap vs. stackid_hmap",
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"err %d errno %d\n", err, errno))
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goto out;
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stack_trace_len = PERF_MAX_STACK_DEPTH * sizeof(__u64);
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err = compare_stack_ips(stackmap_fd, stack_amap_fd, stack_trace_len);
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if (CHECK(err, "compare_stack_ips stackmap vs. stack_amap",
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"err %d errno %d\n", err, errno))
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goto out;
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stack_id = skel->bss->stack_id;
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err = bpf_map_lookup_and_delete_elem(stackmap_fd, &stack_id, stack);
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if (!ASSERT_OK(err, "lookup and delete target stack_id"))
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goto out;
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err = bpf_map_lookup_elem(stackmap_fd, &stack_id, stack);
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if (!ASSERT_EQ(err, -ENOENT, "lookup deleted stack_id"))
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goto out;
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out:
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stacktrace_map__destroy(skel);
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}
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