From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Daniel Xu <dxu@dxuuu.xyz>
Cc: jolsa@kernel.org, quentin@isovalent.com, alan.maguire@oracle.com,
eddyz87@gmail.com, andrii.nakryiko@gmail.com, ast@kernel.org,
daniel@iogearbox.net, bpf@vger.kernel.org
Subject: Re: [PATCH dwarves v9 3/3] pahole: Inject kfunc decl tags into BTF
Date: Mon, 6 May 2024 17:07:54 -0300 [thread overview]
Message-ID: <Zjk4mlHKmukeUc4y@x1> (raw)
In-Reply-To: <zdag4h7ztmwn56yrmieisbhno4gpb24k7rgjevp6gc46e5dxak@3stxrh2qfnlu>
On Tue, Apr 30, 2024 at 05:27:24PM -0600, Daniel Xu wrote:
> On Tue, Apr 30, 2024 at 05:42:14PM GMT, Arnaldo Carvalho de Melo wrote:
> > On Mon, Apr 29, 2024 at 04:46:00PM -0600, Daniel Xu wrote:
> > > This commit teaches pahole to parse symbols in .BTF_ids section in
> > > vmlinux and discover exported kfuncs. Pahole then takes the list of
> > > kfuncs and injects a BTF_KIND_DECL_TAG for each kfunc.
> > >
> > > Example of encoding:
> > >
> > > $ bpftool btf dump file .tmp_vmlinux.btf | rg "DECL_TAG 'bpf_kfunc'" | wc -l
> > > 121
> > >
> > > $ bpftool btf dump file .tmp_vmlinux.btf | rg 56337
> > > [56337] FUNC 'bpf_ct_change_timeout' type_id=56336 linkage=static
> > > [127861] DECL_TAG 'bpf_kfunc' type_id=56337 component_idx=-1
> > >
> > > This enables downstream users and tools to dynamically discover which
> > > kfuncs are available on a system by parsing vmlinux or module BTF, both
> > > available in /sys/kernel/btf.
> > >
> > > This feature is enabled with --btf_features=decl_tag,decl_tag_kfuncs.
> >
> > I'm trying this but:
> >
> > ⬢[acme@toolbox pahole]$ time pahole -j --btf_features=decl_tag,decl_tag_kfuncs --btf_encode_detached=vmlinux.btf.decl_tag,decl_tag_kfuncs vmlinux
> > btf_encoder__tag_kfuncs(cgroup_rstat_updated): found=0
> > btf_encoder__tag_kfuncs(cgroup_rstat_flush): found=0
> > btf_encoder__tag_kfuncs(security_file_permission): found=0
> > btf_encoder__tag_kfuncs(security_inode_getattr): found=0
> > btf_encoder__tag_kfuncs(security_file_open): found=0
> > btf_encoder__tag_kfuncs(security_path_truncate): found=0
> > btf_encoder__tag_kfuncs(vfs_truncate): found=0
> > btf_encoder__tag_kfuncs(vfs_fallocate): found=0
> > btf_encoder__tag_kfuncs(dentry_open): found=0
> > btf_encoder__tag_kfuncs(vfs_getattr): found=0
> > btf_encoder__tag_kfuncs(filp_close): found=0
> > btf_encoder__tag_kfuncs(bpf_lookup_user_key): found=0
> > btf_encoder__tag_kfuncs(bpf_lookup_system_key): found=0
> > btf_encoder__tag_kfuncs(bpf_key_put): found=0
> > btf_encoder__tag_kfuncs(bpf_verify_pkcs7_signature): found=0
> > btf_encoder__tag_kfuncs(bpf_obj_new_impl): found=0
> > <SNIP all with found=0>
> >
> > With:
> >
> > ⬢[acme@toolbox pahole]$ git diff -U16
> > diff --git a/btf_encoder.c b/btf_encoder.c
> > index c2df2bc7a374447b..27a16d6564381b60 100644
> > --- a/btf_encoder.c
> > +++ b/btf_encoder.c
> > @@ -1689,32 +1689,35 @@ static int btf_encoder__tag_kfuncs(struct btf_encoder *encoder)
> > func = get_func_name(name);
> > if (!func)
> > continue;
> >
> > /* Check if function belongs to a kfunc set */
> > ranges = gobuffer__entries(&btf_kfunc_ranges);
> > ranges_cnt = gobuffer__nr_entries(&btf_kfunc_ranges);
> > found = false;
> > for (j = 0; j < ranges_cnt; j++) {
> > size_t addr = sym.st_value;
> >
> > if (ranges[j].start <= addr && addr < ranges[j].end) {
> > found = true;
> > break;
> > }
> > }
> > +
> > + printf("%s(%s): found=%d\n", __func__, func, found);
> > +
> > if (!found) {
> > free(func);
> > continue;
> > }
> >
> > err = btf_encoder__tag_kfunc(encoder, &btf_funcs, func);
> > if (err) {
> > fprintf(stderr, "%s: failed to tag kfunc '%s'\n", __func__, func);
> > free(func);
> > goto out;
> > }
> > free(func);
> > }
> >
> > err = 0;
> > out:
> >
> > --------------
> >
> > The vmlinux I'm testing on has the kfuncs, etc, as we can see with:
> >
> > ⬢[acme@toolbox pahole]$ readelf -sW vmlinux | grep __BTF_ID__func__ | wc -l
> > 517
> > ⬢[acme@toolbox pahole]$ readelf -sW vmlinux | grep __BTF_ID__func__ | tail
> > 97887: ffffffff83266bfc 4 OBJECT LOCAL DEFAULT 15 __BTF_ID__func__cubictcp_cong_avoid__805493
> > 97888: ffffffff83266c04 4 OBJECT LOCAL DEFAULT 15 __BTF_ID__func__cubictcp_state__806494
> > 97889: ffffffff83266c0c 4 OBJECT LOCAL DEFAULT 15 __BTF_ID__func__cubictcp_cwnd_event__807495
> > 97890: ffffffff83266c14 4 OBJECT LOCAL DEFAULT 15 __BTF_ID__func__cubictcp_acked__808496
> > 98068: ffffffff83266c24 4 OBJECT LOCAL DEFAULT 15 __BTF_ID__func__tcp_reno_ssthresh__773199
> > 98069: ffffffff83266c2c 4 OBJECT LOCAL DEFAULT 15 __BTF_ID__func__tcp_reno_cong_avoid__774200
> > 98070: ffffffff83266c34 4 OBJECT LOCAL DEFAULT 15 __BTF_ID__func__tcp_reno_undo_cwnd__775201
> > 98071: ffffffff83266c3c 4 OBJECT LOCAL DEFAULT 15 __BTF_ID__func__tcp_slow_start__776202
> > 98072: ffffffff83266c44 4 OBJECT LOCAL DEFAULT 15 __BTF_ID__func__tcp_cong_avoid_ai__777203
> > 101522: ffffffff83266c5c 4 OBJECT LOCAL DEFAULT 15 __BTF_ID__func__update_socket_protocol__80024
> > ⬢[acme@toolbox pahole]$
> >
> >
> > So that btf_encoder__tag_kfuncs() isn't finding any?
> >
> > $ pahole -j --btf_features=decl_tag,decl_tag_kfuncs --btf_encode_detached=vmlinux.btf.decl_tag,decl_tag_kfuncs vmlinux
> > btf_encoder__tag_kfuncs(vmlinux)
> >
> > Yeah, getting the source filename, the right one.
> >
> > Then is_sym_kfunc_set() never returns true... But:
> >
> > ⬢[acme@toolbox pahole]$ time pahole -j --btf_features=decl_tag,decl_tag_kfuncs --btf_encode_detached=vmlinux.btf.decl_tag,decl_tag_kfuncs vmlinux
> > is_sym_kfunc_set(__BTF_ID__set8__bpf_rstat_kfunc_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__)
> > is_sym_kfunc_set(__BTF_ID__set8__key_sig_kfunc_set, BTF_ID_SET8_PFX=__BTF_ID__set8__)
> > is_sym_kfunc_set(__BTF_ID__set8__generic_btf_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__)
> > is_sym_kfunc_set(__BTF_ID__set8__common_btf_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__)
> > is_sym_kfunc_set(__BTF_ID__set8__bpf_map_iter_kfunc_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__)
> > is_sym_kfunc_set(__BTF_ID__set8__cpumask_kfunc_btf_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__)
> > is_sym_kfunc_set(__BTF_ID__set8__hid_bpf_kfunc_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__)
> > is_sym_kfunc_set(__BTF_ID__set8__hid_bpf_fmodret_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__)
> > is_sym_kfunc_set(__BTF_ID__set8__hid_bpf_syscall_kfunc_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__)
> > is_sym_kfunc_set(__BTF_ID__set8__bpf_kfunc_check_set_skb, BTF_ID_SET8_PFX=__BTF_ID__set8__)
> > is_sym_kfunc_set(__BTF_ID__set8__bpf_kfunc_check_set_xdp, BTF_ID_SET8_PFX=__BTF_ID__set8__)
> > is_sym_kfunc_set(__BTF_ID__set8__bpf_kfunc_check_set_sock_addr, BTF_ID_SET8_PFX=__BTF_ID__set8__)
> > is_sym_kfunc_set(__BTF_ID__set8__bpf_sk_iter_kfunc_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__)
> > is_sym_kfunc_set(__BTF_ID__set8__xdp_metadata_kfunc_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__)
> > is_sym_kfunc_set(__BTF_ID__set8__bpf_test_modify_return_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__)
> > is_sym_kfunc_set(__BTF_ID__set8__test_sk_check_kfunc_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__)
> > is_sym_kfunc_set(__BTF_ID__set8__tcp_cubic_check_kfunc_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__)
> > is_sym_kfunc_set(__BTF_ID__set8__bpf_tcp_ca_check_kfunc_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__)
> > is_sym_kfunc_set(__BTF_ID__set8__bpf_mptcp_fmodret_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__)
> >
> > real 0m5.586s
> > user 0m29.707s
> > sys 0m2.160s
> > ⬢[acme@toolbox pahole]$
> >
> > And then:
> >
> > ⬢[acme@toolbox pahole]$ time pahole -j --btf_features=decl_tag,decl_tag_kfuncs --btf_encode_detached=vmlinux.btf.decl_tag,decl_tag_kfuncs vmlinux
> > is_sym_kfunc_set(__BTF_ID__set8__bpf_rstat_kfunc_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__, set->flags= 0, BTF_SET8_KFUNCS=1, ret=0)
> > is_sym_kfunc_set(__BTF_ID__set8__key_sig_kfunc_set, BTF_ID_SET8_PFX=__BTF_ID__set8__, set->flags= 0, BTF_SET8_KFUNCS=1, ret=0)
> > is_sym_kfunc_set(__BTF_ID__set8__generic_btf_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__, set->flags= 0, BTF_SET8_KFUNCS=1, ret=0)
> > is_sym_kfunc_set(__BTF_ID__set8__common_btf_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__, set->flags= 0, BTF_SET8_KFUNCS=1, ret=0)
> > is_sym_kfunc_set(__BTF_ID__set8__bpf_map_iter_kfunc_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__, set->flags= 0, BTF_SET8_KFUNCS=1, ret=0)
> > is_sym_kfunc_set(__BTF_ID__set8__cpumask_kfunc_btf_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__, set->flags= 0, BTF_SET8_KFUNCS=1, ret=0)
> > is_sym_kfunc_set(__BTF_ID__set8__hid_bpf_kfunc_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__, set->flags= 0, BTF_SET8_KFUNCS=1, ret=0)
> > is_sym_kfunc_set(__BTF_ID__set8__hid_bpf_fmodret_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__, set->flags= 0, BTF_SET8_KFUNCS=1, ret=0)
> > is_sym_kfunc_set(__BTF_ID__set8__hid_bpf_syscall_kfunc_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__, set->flags= 0, BTF_SET8_KFUNCS=1, ret=0)
> > is_sym_kfunc_set(__BTF_ID__set8__bpf_kfunc_check_set_skb, BTF_ID_SET8_PFX=__BTF_ID__set8__, set->flags= 0, BTF_SET8_KFUNCS=1, ret=0)
> > is_sym_kfunc_set(__BTF_ID__set8__bpf_kfunc_check_set_xdp, BTF_ID_SET8_PFX=__BTF_ID__set8__, set->flags= 0, BTF_SET8_KFUNCS=1, ret=0)
> > is_sym_kfunc_set(__BTF_ID__set8__bpf_kfunc_check_set_sock_addr, BTF_ID_SET8_PFX=__BTF_ID__set8__, set->flags= 0, BTF_SET8_KFUNCS=1, ret=0)
> > is_sym_kfunc_set(__BTF_ID__set8__bpf_sk_iter_kfunc_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__, set->flags= 0, BTF_SET8_KFUNCS=1, ret=0)
> > is_sym_kfunc_set(__BTF_ID__set8__xdp_metadata_kfunc_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__, set->flags= 0, BTF_SET8_KFUNCS=1, ret=0)
> > is_sym_kfunc_set(__BTF_ID__set8__bpf_test_modify_return_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__, set->flags= 0, BTF_SET8_KFUNCS=1, ret=0)
> > is_sym_kfunc_set(__BTF_ID__set8__test_sk_check_kfunc_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__, set->flags= 0, BTF_SET8_KFUNCS=1, ret=0)
> > is_sym_kfunc_set(__BTF_ID__set8__tcp_cubic_check_kfunc_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__, set->flags= 0, BTF_SET8_KFUNCS=1, ret=0)
> > is_sym_kfunc_set(__BTF_ID__set8__bpf_tcp_ca_check_kfunc_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__, set->flags= 0, BTF_SET8_KFUNCS=1, ret=0)
> > is_sym_kfunc_set(__BTF_ID__set8__bpf_mptcp_fmodret_ids, BTF_ID_SET8_PFX=__BTF_ID__set8__, set->flags= 0, BTF_SET8_KFUNCS=1, ret=0)
>
> set->flags=0 here is odd. I'd expect at least some of those to be
> non-zero. Can you check if your tree has
> https://github.com/torvalds/linux/commit/6f3189f38a3e995232e028a4c341164c4aca1b20
> ?
⬢[acme@toolbox linux]$ git tag --contains 6f3189f38a3e995232e028a4c341164c4aca1b20
v6.9-rc1
v6.9-rc2
v6.9-rc3
v6.9-rc4
v6.9-rc5
v6.9-rc6
v6.9-rc7
⬢[acme@toolbox linux]$ git log --oneline -1
dd5a440a31fae6e4 (HEAD, tag: v6.9-rc7, torvalds/master) Linux 6.9-rc7
⬢[acme@toolbox linux]$
So now with a just built upstream kernel I get the output below, do you
have patches for other tools to consume this? Or does, say, bpftrace
already handles such decl tags, etc?
I think I'll make pfunct (its in the pahole git repo) to consume it:
⬢[acme@toolbox pahole]$ pfunct --help
Usage: pfunct [OPTION...] FILE
-a, --addr=ADDR show just the function that where ADDR is
-b, --expand_types Expand types needed by the prototype
--compile[=FUNCTION] Generate compilable source code with types
expanded (Default all functions)
-c, --class=CLASS functions that have CLASS pointer parameters
-E, --externals show just external functions
-f, --function=FUNCTION show just FUNCTION
-F, --format_path=FORMAT_LIST List of debugging formats to try
-g, --goto_labels show number of goto labels
-G, --cc_uninlined declared inline, uninlined by compiler
-H, --cc_inlined not declared inline, inlined by compiler
-i, --inline_expansions show inline expansions
-I, --inline_expansions_stats show inline expansions stats
-l, --decl_info show source code info
--no_parm_names Don't show parameter names
-N, --function_name_len show size of functions names
-p, --nr_parms show number of parameters
-P, --prototypes show function prototypes
--symtab[=NAME] show symbol table NAME (Default .symtab)
-s, --sizes show size of functions
-S, --nr_variables show number of variables
-t, --total_inline_stats show Multi-CU total inline expansions stats
-T, --variables show variables
-V, --verbose be verbose
-?, --help Give this help list
--usage Give a short usage message
--version Print program version
Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.
⬢[acme@toolbox pahole]$
- Arnaldo
⬢[acme@toolbox pahole]$ time pahole -j --btf_features=decl_tag,decl_tag_kfuncs --btf_encode_detached=vmlinux.btf.decl_tag,decl_tag_kfuncs vmlinux-v6.9.0-rc7
real 0m5.938s
user 0m32.050s
sys 0m2.075s
⬢[acme@toolbox pahole]$ bpftool btf dump file vmlinux.btf.decl_tag,decl_tag_kfuncs | grep -w 94151
[94151] FUNC 'cgroup_rstat_updated' type_id=94150 linkage=static
[135450] DECL_TAG 'bpf_kfunc' type_id=94151 component_idx=-1
⬢[acme@toolbox pahole]$ bpftool btf dump file vmlinux.btf.decl_tag,decl_tag_kfuncs | grep -w 94150 -A2
[94150] FUNC_PROTO '(anon)' ret_type_id=0 vlen=2
'cgrp' type_id=744
'cpu' type_id=12
[94151] FUNC 'cgroup_rstat_updated' type_id=94150 linkage=static
[94152] STRUCT 'pids_cgroup' size=288 vlen=6
'css' type_id=1786 bits_offset=0
⬢[acme@toolbox pahole]$
⬢[acme@toolbox pahole]$ bpftool btf dump file vmlinux.btf.decl_tag,decl_tag_kfuncs | grep DECL
'BTF_KIND_DECL_TAG' val=17
[135450] DECL_TAG 'bpf_kfunc' type_id=94151 component_idx=-1
[135451] DECL_TAG 'bpf_kfunc' type_id=94146 component_idx=-1
[135452] DECL_TAG 'bpf_kfunc' type_id=74311 component_idx=-1
[135453] DECL_TAG 'bpf_kfunc' type_id=74309 component_idx=-1
[135454] DECL_TAG 'bpf_kfunc' type_id=74307 component_idx=-1
[135455] DECL_TAG 'bpf_kfunc' type_id=74305 component_idx=-1
[135456] DECL_TAG 'bpf_kfunc' type_id=74302 component_idx=-1
[135457] DECL_TAG 'bpf_kfunc' type_id=43681 component_idx=-1
[135458] DECL_TAG 'bpf_kfunc' type_id=83157 component_idx=-1
[135459] DECL_TAG 'bpf_kfunc' type_id=83156 component_idx=-1
[135460] DECL_TAG 'bpf_kfunc' type_id=83152 component_idx=-1
[135461] DECL_TAG 'bpf_kfunc' type_id=83151 component_idx=-1
[135462] DECL_TAG 'bpf_kfunc' type_id=83149 component_idx=-1
[135463] DECL_TAG 'bpf_kfunc' type_id=83145 component_idx=-1
[135464] DECL_TAG 'bpf_kfunc' type_id=83144 component_idx=-1
[135465] DECL_TAG 'bpf_kfunc' type_id=83142 component_idx=-1
[135466] DECL_TAG 'bpf_kfunc' type_id=83141 component_idx=-1
[135467] DECL_TAG 'bpf_kfunc' type_id=83133 component_idx=-1
[135468] DECL_TAG 'bpf_kfunc' type_id=83132 component_idx=-1
[135469] DECL_TAG 'bpf_kfunc' type_id=83139 component_idx=-1
[135470] DECL_TAG 'bpf_kfunc' type_id=83137 component_idx=-1
[135471] DECL_TAG 'bpf_kfunc' type_id=83135 component_idx=-1
[135472] DECL_TAG 'bpf_kfunc' type_id=83130 component_idx=-1
[135473] DECL_TAG 'bpf_kfunc' type_id=83128 component_idx=-1
[135474] DECL_TAG 'bpf_kfunc' type_id=83125 component_idx=-1
[135475] DECL_TAG 'bpf_kfunc' type_id=83123 component_idx=-1
[135476] DECL_TAG 'bpf_kfunc' type_id=83121 component_idx=-1
[135477] DECL_TAG 'bpf_kfunc' type_id=83119 component_idx=-1
[135478] DECL_TAG 'bpf_kfunc' type_id=83117 component_idx=-1
[135479] DECL_TAG 'bpf_kfunc' type_id=83095 component_idx=-1
[135480] DECL_TAG 'bpf_kfunc' type_id=83103 component_idx=-1
[135481] DECL_TAG 'bpf_kfunc' type_id=83101 component_idx=-1
[135482] DECL_TAG 'bpf_kfunc' type_id=83099 component_idx=-1
[135483] DECL_TAG 'bpf_kfunc' type_id=83098 component_idx=-1
[135484] DECL_TAG 'bpf_kfunc' type_id=83115 component_idx=-1
[135485] DECL_TAG 'bpf_kfunc' type_id=83114 component_idx=-1
[135486] DECL_TAG 'bpf_kfunc' type_id=24936 component_idx=-1
[135487] DECL_TAG 'bpf_kfunc' type_id=24934 component_idx=-1
[135488] DECL_TAG 'bpf_kfunc' type_id=24932 component_idx=-1
[135489] DECL_TAG 'bpf_kfunc' type_id=35395 component_idx=-1
[135490] DECL_TAG 'bpf_kfunc' type_id=35393 component_idx=-1
[135491] DECL_TAG 'bpf_kfunc' type_id=35391 component_idx=-1
[135492] DECL_TAG 'bpf_kfunc' type_id=35389 component_idx=-1
[135493] DECL_TAG 'bpf_kfunc' type_id=35387 component_idx=-1
[135494] DECL_TAG 'bpf_kfunc' type_id=35385 component_idx=-1
[135495] DECL_TAG 'bpf_kfunc' type_id=129497 component_idx=-1
[135496] DECL_TAG 'bpf_kfunc' type_id=129495 component_idx=-1
[135497] DECL_TAG 'bpf_kfunc' type_id=129493 component_idx=-1
[135498] DECL_TAG 'bpf_kfunc' type_id=35383 component_idx=-1
[135499] DECL_TAG 'bpf_kfunc' type_id=35381 component_idx=-1
[135500] DECL_TAG 'bpf_kfunc' type_id=35379 component_idx=-1
[135501] DECL_TAG 'bpf_kfunc' type_id=83112 component_idx=-1
[135502] DECL_TAG 'bpf_kfunc' type_id=83110 component_idx=-1
[135503] DECL_TAG 'bpf_kfunc' type_id=83109 component_idx=-1
[135504] DECL_TAG 'bpf_kfunc' type_id=83107 component_idx=-1
[135505] DECL_TAG 'bpf_kfunc' type_id=83105 component_idx=-1
[135506] DECL_TAG 'bpf_kfunc' type_id=129409 component_idx=-1
[135507] DECL_TAG 'bpf_kfunc' type_id=119719 component_idx=-1
[135508] DECL_TAG 'bpf_kfunc' type_id=119717 component_idx=-1
[135509] DECL_TAG 'bpf_kfunc' type_id=83434 component_idx=-1
[135510] DECL_TAG 'bpf_kfunc' type_id=83430 component_idx=-1
[135511] DECL_TAG 'bpf_kfunc' type_id=83432 component_idx=-1
[135512] DECL_TAG 'bpf_kfunc' type_id=83427 component_idx=-1
[135513] DECL_TAG 'bpf_kfunc' type_id=83426 component_idx=-1
[135514] DECL_TAG 'bpf_kfunc' type_id=83425 component_idx=-1
[135515] DECL_TAG 'bpf_kfunc' type_id=83424 component_idx=-1
[135516] DECL_TAG 'bpf_kfunc' type_id=83423 component_idx=-1
[135517] DECL_TAG 'bpf_kfunc' type_id=83421 component_idx=-1
[135518] DECL_TAG 'bpf_kfunc' type_id=83419 component_idx=-1
[135519] DECL_TAG 'bpf_kfunc' type_id=83418 component_idx=-1
[135520] DECL_TAG 'bpf_kfunc' type_id=83416 component_idx=-1
[135521] DECL_TAG 'bpf_kfunc' type_id=83415 component_idx=-1
[135522] DECL_TAG 'bpf_kfunc' type_id=83413 component_idx=-1
[135523] DECL_TAG 'bpf_kfunc' type_id=83411 component_idx=-1
[135524] DECL_TAG 'bpf_kfunc' type_id=83410 component_idx=-1
[135525] DECL_TAG 'bpf_kfunc' type_id=83408 component_idx=-1
[135526] DECL_TAG 'bpf_kfunc' type_id=83407 component_idx=-1
[135527] DECL_TAG 'bpf_kfunc' type_id=83406 component_idx=-1
[135528] DECL_TAG 'bpf_kfunc' type_id=83404 component_idx=-1
[135529] DECL_TAG 'bpf_kfunc' type_id=83403 component_idx=-1
[135530] DECL_TAG 'bpf_kfunc' type_id=83401 component_idx=-1
[135531] DECL_TAG 'bpf_kfunc' type_id=83399 component_idx=-1
[135532] DECL_TAG 'bpf_kfunc' type_id=83398 component_idx=-1
[135533] DECL_TAG 'bpf_kfunc' type_id=83396 component_idx=-1
[135534] DECL_TAG 'bpf_kfunc' type_id=84592 component_idx=-1
[135535] DECL_TAG 'bpf_kfunc' type_id=78862 component_idx=-1
[135536] DECL_TAG 'bpf_kfunc' type_id=78855 component_idx=-1
[135537] DECL_TAG 'bpf_kfunc' type_id=78853 component_idx=-1
[135538] DECL_TAG 'bpf_kfunc' type_id=78851 component_idx=-1
[135539] DECL_TAG 'bpf_kfunc' type_id=78849 component_idx=-1
[135540] DECL_TAG 'bpf_kfunc' type_id=52826 component_idx=-1
[135541] DECL_TAG 'bpf_kfunc' type_id=52825 component_idx=-1
[135542] DECL_TAG 'bpf_kfunc' type_id=52823 component_idx=-1
[135543] DECL_TAG 'bpf_kfunc' type_id=52821 component_idx=-1
[135544] DECL_TAG 'bpf_kfunc' type_id=52816 component_idx=-1
[135545] DECL_TAG 'bpf_kfunc' type_id=79148 component_idx=-1
[135546] DECL_TAG 'bpf_kfunc' type_id=79146 component_idx=-1
[135547] DECL_TAG 'bpf_kfunc' type_id=79144 component_idx=-1
[135548] DECL_TAG 'bpf_kfunc' type_id=33070 component_idx=-1
[135549] DECL_TAG 'bpf_kfunc' type_id=33068 component_idx=-1
[135550] DECL_TAG 'bpf_kfunc' type_id=33088 component_idx=-1
[135551] DECL_TAG 'bpf_kfunc' type_id=33064 component_idx=-1
[135552] DECL_TAG 'bpf_kfunc' type_id=33061 component_idx=-1
[135553] DECL_TAG 'bpf_kfunc' type_id=134975 component_idx=-1
[135554] DECL_TAG 'bpf_kfunc' type_id=134971 component_idx=-1
[135555] DECL_TAG 'bpf_kfunc' type_id=134972 component_idx=-1
[135556] DECL_TAG 'bpf_kfunc' type_id=134970 component_idx=-1
[135557] DECL_TAG 'bpf_kfunc' type_id=134974 component_idx=-1
[135558] DECL_TAG 'bpf_kfunc' type_id=134969 component_idx=-1
[135559] DECL_TAG 'bpf_kfunc' type_id=53825 component_idx=-1
[135560] DECL_TAG 'bpf_kfunc' type_id=53827 component_idx=-1
[135561] DECL_TAG 'bpf_kfunc' type_id=53824 component_idx=-1
[135562] DECL_TAG 'bpf_kfunc' type_id=53831 component_idx=-1
[135563] DECL_TAG 'bpf_kfunc' type_id=53829 component_idx=-1
[135564] DECL_TAG 'bpf_kfunc' type_id=21317 component_idx=-1
[135565] DECL_TAG 'bpf_kfunc' type_id=21315 component_idx=-1
⬢[acme@toolbox pahole]$
next prev parent reply other threads:[~2024-05-06 20:08 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-29 22:45 [PATCH dwarves v9 0/3] pahole: Inject kfunc decl tags into BTF Daniel Xu
2024-04-29 22:45 ` [PATCH dwarves v9 1/3] pahole: Save input filename separate from output Daniel Xu
2024-04-30 18:41 ` Arnaldo Carvalho de Melo
2024-04-29 22:45 ` [PATCH dwarves v9 2/3] pahole: Add --btf_feature=decl_tag_kfuncs feature Daniel Xu
2024-04-30 18:48 ` Arnaldo Carvalho de Melo
2024-04-30 23:00 ` Daniel Xu
2024-05-02 11:49 ` Alan Maguire
2024-05-02 13:35 ` Arnaldo Carvalho de Melo
2024-05-02 13:43 ` Alan Maguire
2024-04-29 22:46 ` [PATCH dwarves v9 3/3] pahole: Inject kfunc decl tags into BTF Daniel Xu
2024-04-30 19:57 ` Arnaldo Carvalho de Melo
2024-04-30 23:29 ` Daniel Xu
2024-04-30 20:42 ` Arnaldo Carvalho de Melo
2024-04-30 23:27 ` Daniel Xu
2024-05-06 20:07 ` Arnaldo Carvalho de Melo [this message]
2024-05-07 2:18 ` Daniel Xu
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