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linux/tools/bpf/bpftool
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Yafang Shao edd7f49bb8 bpftool: Show kprobe_multi link info 
Show the already expose kprobe_multi link info in bpftool. The result as
follows,

$ tools/bpf/bpftool/bpftool link show
91: kprobe_multi  prog 244
        kprobe.multi  func_cnt 7
        addr             func [module]
        ffffffff98c44f20 schedule_timeout_interruptible
        ffffffff98c44f60 schedule_timeout_killable
        ffffffff98c44fa0 schedule_timeout_uninterruptible
        ffffffff98c44fe0 schedule_timeout_idle
        ffffffffc075b8d0 xfs_trans_get_efd [xfs]
        ffffffffc0768a10 xfs_trans_get_buf_map [xfs]
        ffffffffc076c320 xfs_trans_get_dqtrx [xfs]
        pids kprobe_multi(188367)
92: kprobe_multi  prog 244
        kretprobe.multi  func_cnt 7
        addr             func [module]
        ffffffff98c44f20 schedule_timeout_interruptible
        ffffffff98c44f60 schedule_timeout_killable
        ffffffff98c44fa0 schedule_timeout_uninterruptible
        ffffffff98c44fe0 schedule_timeout_idle
        ffffffffc075b8d0 xfs_trans_get_efd [xfs]
        ffffffffc0768a10 xfs_trans_get_buf_map [xfs]
        ffffffffc076c320 xfs_trans_get_dqtrx [xfs]
        pids kprobe_multi(188367)

$ tools/bpf/bpftool/bpftool link show -j
[{"id":91,"type":"kprobe_multi","prog_id":244,"retprobe":false,"func_cnt":7,"funcs":[{"addr":18446744071977586464,"func":"schedule_timeout_interruptible","module":null},{"addr":18446744071977586528,"func":"schedule_timeout_killable","module":null},{"addr":18446744071977586592,"func":"schedule_timeout_uninterruptible","module":null},{"addr":18446744071977586656,"func":"schedule_timeout_idle","module":null},{"addr":18446744072643524816,"func":"xfs_trans_get_efd","module":"xfs"},{"addr":18446744072643578384,"func":"xfs_trans_get_buf_map","module":"xfs"},{"addr":18446744072643592992,"func":"xfs_trans_get_dqtrx","module":"xfs"}],"pids":[{"pid":188367,"comm":"kprobe_multi"}]},{"id":92,"type":"kprobe_multi","prog_id":244,"retprobe":true,"func_cnt":7,"funcs":[{"addr":18446744071977586464,"func":"schedule_timeout_interruptible","module":null},{"addr":18446744071977586528,"func":"schedule_timeout_killable","module":null},{"addr":18446744071977586592,"func":"schedule_timeout_uninterruptible","module":null},{"addr":18446744071977586656,"func":"schedule_timeout_idle","module":null},{"addr":18446744072643524816,"func":"xfs_trans_get_efd","module":"xfs"},{"addr":18446744072643578384,"func":"xfs_trans_get_buf_map","module":"xfs"},{"addr":18446744072643592992,"func":"xfs_trans_get_dqtrx","module":"xfs"}],"pids":[{"pid":188367,"comm":"kprobe_multi"}]}]

When kptr_restrict is 2, the result is,

$ tools/bpf/bpftool/bpftool link show
91: kprobe_multi  prog 244
        kprobe.multi  func_cnt 7
92: kprobe_multi  prog 244
        kretprobe.multi  func_cnt 7

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20230709025630.3735-4-laoar.shao@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-07-11 20:07:50 -07:00
..
bash-completion bpftool: Specify XDP Hints ifname when loading program 2023-05-23 16:55:06 +02:00
Documentation bpf: Replace deprecated -target with --target= for Clang 2023-06-29 15:46:17 +02:00
skeleton bpftool: Use a local bpf_perf_event_value to fix accessing its fields 2023-07-10 15:29:21 -07:00
.gitignore bpftool: Fix SPDX tag for Makefiles and .gitignore 2021-11-10 09:00:52 -08:00
btf.c bpftool: Use bpf_{btf,link,map,prog}_get_info_by_fd() 2023-02-16 15:32:45 -08:00
btf_dumper.c bpftool: Replace "__fallthrough" by a comment to address merge conflict 2023-04-20 16:38:10 -07:00
cfg.c bpftool: Support printing opcodes and source file references in CFG 2023-04-05 21:27:27 -07:00
cfg.h bpftool: Support printing opcodes and source file references in CFG 2023-04-05 21:27:27 -07:00
cgroup.c bpftool: Use bpf_{btf,link,map,prog}_get_info_by_fd() 2023-02-16 15:32:45 -08:00
common.c bpftool: Support bpffs mountpoint as pin path for prog loadall 2023-05-17 15:58:18 +02:00
feature.c bpftool: JIT limited misreported as negative value on aarch64 2023-05-15 21:14:48 +02:00
gen.c bpftool: clean-up usage of libbpf_get_error() 2022-11-20 16:17:46 -08:00
iter.c bpftool: Support bpffs mountpoint as pin path for prog loadall 2023-05-17 15:58:18 +02:00
jit_disasm.c bpftool: Fix spelling mistake "disasembler" -> "disassembler" 2022-10-26 18:20:22 -07:00
json_writer.c tools: bpftool: json: Fix backslash escape typo in jsonw_puts 2023-03-29 09:48:45 -07:00
json_writer.h tools: bpftool: json: Fix backslash escape typo in jsonw_puts 2023-03-29 09:48:45 -07:00
link.c bpftool: Show kprobe_multi link info 2023-07-11 20:07:50 -07:00
main.c bpftool: clean-up usage of libbpf_get_error() 2022-11-20 16:17:46 -08:00
main.h bpftool: Support bpffs mountpoint as pin path for prog loadall 2023-05-17 15:58:18 +02:00
Makefile bpf: Replace deprecated -target with --target= for Clang 2023-06-29 15:46:17 +02:00
map.c bpftool: Specify XDP Hints ifname when loading program 2023-05-23 16:55:06 +02:00
map_perf_ring.c bpftool: Fix error message of strerror 2022-09-30 15:40:46 -07:00
net.c tools: bpftool: print netfilter link info 2023-04-21 11:34:49 -07:00
netlink_dumper.c
netlink_dumper.h
perf.c bpftool: Define _GNU_SOURCE only once 2022-10-25 10:11:56 -07:00
pids.c libbpf: Hashmap interface update to allow both long and void* keys/values 2022-11-09 20:45:14 -08:00
prog.c bpftool: Specify XDP Hints ifname when loading program 2023-05-23 16:55:06 +02:00
struct_ops.c bpftool: Support bpffs mountpoint as pin path for prog loadall 2023-05-17 15:58:18 +02:00
tracelog.c bpftool, musl compat: Replace sys/fcntl.h by fcntl.h 2022-04-25 23:24:28 +02:00
xlated_dumper.c bpftool: Dump the kernel symbol's module name 2023-07-11 20:07:50 -07:00
xlated_dumper.h bpftool: Dump the kernel symbol's module name 2023-07-11 20:07:50 -07:00