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5697683e13
Add selftests to stress test the various facets of the stream API, memory allocation pattern, and ensuring dumping support is tested and functional. Reviewed-by: Emil Tsalapatis <emil@etsalapatis.com> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20250703204818.925464-13-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
33 lines
797 B
C
33 lines
797 B
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
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#include <vmlinux.h>
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#include <bpf/bpf_tracing.h>
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#include <bpf/bpf_helpers.h>
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#include <bpf/bpf_core_read.h>
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#include "bpf_misc.h"
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SEC("syscall")
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__failure __msg("Possibly NULL pointer passed")
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int stream_vprintk_null_arg(void *ctx)
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{
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bpf_stream_vprintk(BPF_STDOUT, "", NULL, 0, NULL);
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return 0;
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}
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SEC("syscall")
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__failure __msg("R3 type=scalar expected=")
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int stream_vprintk_scalar_arg(void *ctx)
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{
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bpf_stream_vprintk(BPF_STDOUT, "", (void *)46, 0, NULL);
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return 0;
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}
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SEC("syscall")
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__failure __msg("arg#1 doesn't point to a const string")
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int stream_vprintk_string_arg(void *ctx)
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{
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bpf_stream_vprintk(BPF_STDOUT, ctx, NULL, 0, NULL);
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return 0;
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}
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char _license[] SEC("license") = "GPL";
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