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This commit replaces separate headers with a single vmlinux.h to tracing programs. Thanks to that, we no longer need to define the argument structure for tracing programs directly. For example, argument for the sched_switch tracpepoint (sched_switch_args) can be replaced with the vmlinux.h provided trace_event_raw_sched_switch. Additional defines have been added to the BPF program either directly or through the inclusion of net_shared.h. Defined values are PERF_MAX_STACK_DEPTH, IFNAMSIZ constants and __stringify() macro. This change enables the BPF program to access internal structures with BTF generated "vmlinux.h" header. Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com> Link: https://lore.kernel.org/r/20230818090119.477441-3-danieltimlee@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
23 lines
658 B
C
23 lines
658 B
C
/* Copyright (c) 2016 Facebook
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public
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* License as published by the Free Software Foundation.
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*/
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#include "vmlinux.h"
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#include <bpf/bpf_helpers.h>
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/* from /sys/kernel/tracing/events/task/task_rename/format */
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SEC("tracepoint/task/task_rename")
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int prog(struct trace_event_raw_task_rename *ctx)
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{
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return 0;
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}
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/* from /sys/kernel/tracing/events/fib/fib_table_lookup/format */
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SEC("tracepoint/fib/fib_table_lookup")
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int prog2(struct trace_event_raw_fib_table_lookup *ctx)
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{
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return 0;
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}
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char _license[] SEC("license") = "GPL";
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