55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2021 Facebook */
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#include <test_progs.h>
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#include "trace_vprintk.lskel.h"
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#define SEARCHMSG "1,2,3,4,5,6,7,8,9,10"
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static void trace_pipe_cb(const char *str, void *data)
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{
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if (strstr(str, SEARCHMSG) != NULL)
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(*(int *)data)++;
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}
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void serial_test_trace_vprintk(void)
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{
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struct trace_vprintk_lskel__bss *bss;
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struct trace_vprintk_lskel *skel;
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int err = 0, found = 0;
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skel = trace_vprintk_lskel__open_and_load();
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if (!ASSERT_OK_PTR(skel, "trace_vprintk__open_and_load"))
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goto cleanup;
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bss = skel->bss;
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err = trace_vprintk_lskel__attach(skel);
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if (!ASSERT_OK(err, "trace_vprintk__attach"))
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goto cleanup;
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/* wait for tracepoint to trigger */
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usleep(1);
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trace_vprintk_lskel__detach(skel);
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if (!ASSERT_GT(bss->trace_vprintk_ran, 0, "bss->trace_vprintk_ran"))
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goto cleanup;
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if (!ASSERT_GT(bss->trace_vprintk_ret, 0, "bss->trace_vprintk_ret"))
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goto cleanup;
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/* verify our search string is in the trace buffer */
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ASSERT_OK(read_trace_pipe_iter(trace_pipe_cb, &found, 1000),
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"read_trace_pipe_iter");
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if (!ASSERT_EQ(found, bss->trace_vprintk_ran, "found"))
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goto cleanup;
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if (!ASSERT_LT(bss->null_data_vprintk_ret, 0, "bss->null_data_vprintk_ret"))
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goto cleanup;
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cleanup:
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trace_vprintk_lskel__destroy(skel);
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}
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