7483a7a70a
Add support for displaying opcodes or/and file references (filepath, line and column numbers) when dumping the control flow graphs of loaded BPF programs with bpftool. The filepaths in the records are absolute. To avoid blocks on the graph to get too wide, we truncate them when they get too long (but we always keep the entire file name). In the unlikely case where the resulting file name is ambiguous, it remains possible to get the full path with a regular dump (no CFG). Signed-off-by: Quentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/r/20230405132120.59886-7-quentin@isovalent.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
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/* Copyright (C) 2018 Netronome Systems, Inc. */
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#ifndef __BPF_TOOL_XLATED_DUMPER_H
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#define __BPF_TOOL_XLATED_DUMPER_H
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#define SYM_MAX_NAME 256
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struct bpf_prog_linfo;
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struct kernel_sym {
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unsigned long address;
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char name[SYM_MAX_NAME];
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};
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struct dump_data {
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unsigned long address_call_base;
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struct kernel_sym *sym_mapping;
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__u32 sym_count;
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__u64 *jited_ksyms;
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__u32 nr_jited_ksyms;
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struct btf *btf;
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void *func_info;
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__u32 finfo_rec_size;
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const struct bpf_prog_linfo *prog_linfo;
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char scratch_buff[SYM_MAX_NAME + 8];
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};
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void kernel_syms_load(struct dump_data *dd);
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void kernel_syms_destroy(struct dump_data *dd);
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struct kernel_sym *kernel_syms_search(struct dump_data *dd, unsigned long key);
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void dump_xlated_json(struct dump_data *dd, void *buf, unsigned int len,
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bool opcodes, bool linum);
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void dump_xlated_plain(struct dump_data *dd, void *buf, unsigned int len,
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bool opcodes, bool linum);
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void dump_xlated_for_graph(struct dump_data *dd, void *buf, void *buf_end,
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unsigned int start_index,
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bool opcodes, bool linum);
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#endif
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