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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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e950e84336
This tests that:
* a BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE cannot be attached if it
uses either:
* a variable offset to the tracepoint buffer, or
* an offset beyond the size of the tracepoint buffer
* a tracer can modify the buffer provided when attached to a writable
tracepoint in bpf_prog_test_run
Signed-off-by: Matt Mullins <mmullins@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
51 lines
1.0 KiB
C
51 lines
1.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM bpf_test_run
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#if !defined(_TRACE_BPF_TEST_RUN_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_BPF_TEST_RUN_H
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#include <linux/tracepoint.h>
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DECLARE_EVENT_CLASS(bpf_test_finish,
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TP_PROTO(int *err),
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TP_ARGS(err),
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TP_STRUCT__entry(
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__field(int, err)
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),
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TP_fast_assign(
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__entry->err = *err;
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),
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TP_printk("bpf_test_finish with err=%d", __entry->err)
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);
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#ifdef DEFINE_EVENT_WRITABLE
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#undef BPF_TEST_RUN_DEFINE_EVENT
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#define BPF_TEST_RUN_DEFINE_EVENT(template, call, proto, args, size) \
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DEFINE_EVENT_WRITABLE(template, call, PARAMS(proto), \
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PARAMS(args), size)
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#else
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#undef BPF_TEST_RUN_DEFINE_EVENT
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#define BPF_TEST_RUN_DEFINE_EVENT(template, call, proto, args, size) \
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DEFINE_EVENT(template, call, PARAMS(proto), PARAMS(args))
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#endif
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BPF_TEST_RUN_DEFINE_EVENT(bpf_test_finish, bpf_test_finish,
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TP_PROTO(int *err),
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TP_ARGS(err),
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sizeof(int)
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);
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#endif
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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