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93bc2e9e94
linux/tools/bpf/bpftool
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Dominique Martinet 93bc2e9e94 bpftool, musl compat: Replace nftw with FTW_ACTIONRETVAL 
musl nftw implementation does not support FTW_ACTIONRETVAL. There have been
multiple attempts at pushing the feature in musl upstream, but it has been
refused or ignored all the times:

  https://www.openwall.com/lists/musl/2021/03/26/1
  https://www.openwall.com/lists/musl/2022/01/22/1

In this case we only care about /proc/<pid>/fd/<fd>, so it's not too difficult
to reimplement directly instead, and the new implementation makes 'bpftool perf'
slightly faster because it doesn't needlessly stat/readdir unneeded directories
(54ms -> 13ms on my machine).

Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Quentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/bpf/20220424051022.2619648-4-asmadeus@codewreck.org
2022-04-25 23:24:16 +02:00
..
bash-completion bpftool: Add support for subskeletons 2022-03-17 23:12:39 -07:00
Documentation bpftool: Add support for subskeletons 2022-03-17 23:12:39 -07:00
skeleton bpftool: Add bpf_cookie to link output 2022-03-15 15:07:27 -07:00
.gitignore bpftool: Fix SPDX tag for Makefiles and .gitignore 2021-11-10 09:00:52 -08:00
btf_dumper.c bpftool: Use bpf_obj_get_info_by_fd directly 2021-11-03 11:25:32 -07:00
btf.c bpftool: Fix error check when calling hashmap__new() 2022-01-12 17:01:36 -08:00
cfg.c tools, bpftool: Poison and replace kernel integer typedefs 2020-05-11 21:20:46 +02:00
cfg.h tools: bpftool: replace Netronome boilerplate with SPDX license headers 2018-12-13 12:08:44 +01:00
cgroup.c bpftool: Adding support for BTF program names 2022-01-19 10:04:41 -08:00
common.c bpftool: Use libbpf 1.0 API mode instead of RLIMIT_MEMLOCK 2022-04-10 20:17:16 -07:00
feature.c bpftool: Use libbpf 1.0 API mode instead of RLIMIT_MEMLOCK 2022-04-10 20:17:16 -07:00
gen.c bpftool: Explicit errno handling in skeletons 2022-03-30 14:06:59 +02:00
iter.c bpftool: Use libbpf_get_error() to check error 2021-11-14 18:38:13 -08:00
jit_disasm.c bpftool: Properly close va_list 'ap' by va_end() on error 2021-07-06 09:19:23 +02:00
json_writer.c bpftool: Support dumping metadata 2020-09-15 18:28:27 -07:00
json_writer.h bpftool: Support dumping metadata 2020-09-15 18:28:27 -07:00
link.c bpftool: Add missing link types 2022-04-04 14:54:34 -07:00
main.c bpftool: Use libbpf 1.0 API mode instead of RLIMIT_MEMLOCK 2022-04-10 20:17:16 -07:00
main.h bpftool: Use libbpf 1.0 API mode instead of RLIMIT_MEMLOCK 2022-04-10 20:17:16 -07:00
Makefile Kbuild updates for v5.18 2022-03-31 11:59:03 -07:00
map_perf_ring.c bpftool: Update btf_dump__new() and perf_buffer__new_raw() calls 2021-11-11 16:54:06 -08:00
map.c bpftool: Use libbpf 1.0 API mode instead of RLIMIT_MEMLOCK 2022-04-10 20:17:16 -07:00
net.c bpftool: use new API for attaching XDP program 2022-01-20 21:22:02 -08:00
netlink_dumper.c bpftool: Use consistent include paths for libbpf 2020-01-20 16:37:45 -08:00
netlink_dumper.h tools: bpftool: dual license all files 2018-12-13 12:08:44 +01:00
perf.c bpftool, musl compat: Replace nftw with FTW_ACTIONRETVAL 2022-04-25 23:24:16 +02:00
pids.c bpftool: Use libbpf 1.0 API mode instead of RLIMIT_MEMLOCK 2022-04-10 20:17:16 -07:00
prog.c bpftool: Use libbpf 1.0 API mode instead of RLIMIT_MEMLOCK 2022-04-10 20:17:16 -07:00
struct_ops.c bpftool: Use libbpf 1.0 API mode instead of RLIMIT_MEMLOCK 2022-04-10 20:17:16 -07:00
tracelog.c tools: bpftool: add an option to prevent auto-mount of bpffs, tracefs 2018-12-18 14:47:17 +01:00
xlated_dumper.c bpftool: Remove usage of reallocarray() 2022-02-23 13:55:01 -08:00
xlated_dumper.h tools: bpftool: replace Netronome boilerplate with SPDX license headers 2018-12-13 12:08:44 +01:00