From: Menglong Dong <menglong8.dong@gmail.com>
To: ast@kernel.org, andrii@kernel.org
Cc: daniel@iogearbox.net, martin.lau@linux.dev, eddyz87@gmail.com,
song@kernel.org, yonghong.song@linux.dev,
john.fastabend@gmail.com, kpsingh@kernel.org, sdf@fomichev.me,
haoluo@google.com, jolsa@kernel.org, davem@davemloft.net,
dsahern@kernel.org, tglx@linutronix.de, mingo@redhat.com,
jiang.biao@linux.dev, bp@alien8.de, dave.hansen@linux.intel.com,
x86@kernel.org, hpa@zytor.com, bpf@vger.kernel.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH bpf-next v7 08/11] libbpf: add fsession support
Date: Wed, 7 Jan 2026 14:43:49 +0800 [thread overview]
Message-ID: <20260107064352.291069-9-dongml2@chinatelecom.cn> (raw)
In-Reply-To: <20260107064352.291069-1-dongml2@chinatelecom.cn>
Add BPF_TRACE_FSESSION to libbpf and bpftool.
Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn>
---
v5:
- remove the handling of BPF_TRACE_SESSION in legacy fallback path for
BPF_RAW_TRACEPOINT_OPEN
- use fsession terminology consistently
---
tools/bpf/bpftool/common.c | 1 +
tools/lib/bpf/bpf.c | 1 +
tools/lib/bpf/libbpf.c | 3 +++
3 files changed, 5 insertions(+)
diff --git a/tools/bpf/bpftool/common.c b/tools/bpf/bpftool/common.c
index e8daf963ecef..8bfcff9e2f63 100644
--- a/tools/bpf/bpftool/common.c
+++ b/tools/bpf/bpftool/common.c
@@ -1191,6 +1191,7 @@ const char *bpf_attach_type_input_str(enum bpf_attach_type t)
case BPF_TRACE_FENTRY: return "fentry";
case BPF_TRACE_FEXIT: return "fexit";
case BPF_MODIFY_RETURN: return "mod_ret";
+ case BPF_TRACE_FSESSION: return "fsession";
case BPF_SK_REUSEPORT_SELECT: return "sk_skb_reuseport_select";
case BPF_SK_REUSEPORT_SELECT_OR_MIGRATE: return "sk_skb_reuseport_select_or_migrate";
default: return libbpf_bpf_attach_type_str(t);
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
index 21b57a629916..5846de364209 100644
--- a/tools/lib/bpf/bpf.c
+++ b/tools/lib/bpf/bpf.c
@@ -794,6 +794,7 @@ int bpf_link_create(int prog_fd, int target_fd,
case BPF_TRACE_FENTRY:
case BPF_TRACE_FEXIT:
case BPF_MODIFY_RETURN:
+ case BPF_TRACE_FSESSION:
case BPF_LSM_MAC:
attr.link_create.tracing.cookie = OPTS_GET(opts, tracing.cookie, 0);
if (!OPTS_ZEROED(opts, tracing))
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 1a52d818a76c..89d6f45ef058 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -115,6 +115,7 @@ static const char * const attach_type_name[] = {
[BPF_TRACE_FENTRY] = "trace_fentry",
[BPF_TRACE_FEXIT] = "trace_fexit",
[BPF_MODIFY_RETURN] = "modify_return",
+ [BPF_TRACE_FSESSION] = "trace_fsession",
[BPF_LSM_MAC] = "lsm_mac",
[BPF_LSM_CGROUP] = "lsm_cgroup",
[BPF_SK_LOOKUP] = "sk_lookup",
@@ -9859,6 +9860,8 @@ static const struct bpf_sec_def section_defs[] = {
SEC_DEF("fentry.s+", TRACING, BPF_TRACE_FENTRY, SEC_ATTACH_BTF | SEC_SLEEPABLE, attach_trace),
SEC_DEF("fmod_ret.s+", TRACING, BPF_MODIFY_RETURN, SEC_ATTACH_BTF | SEC_SLEEPABLE, attach_trace),
SEC_DEF("fexit.s+", TRACING, BPF_TRACE_FEXIT, SEC_ATTACH_BTF | SEC_SLEEPABLE, attach_trace),
+ SEC_DEF("fsession+", TRACING, BPF_TRACE_FSESSION, SEC_ATTACH_BTF, attach_trace),
+ SEC_DEF("fsession.s+", TRACING, BPF_TRACE_FSESSION, SEC_ATTACH_BTF | SEC_SLEEPABLE, attach_trace),
SEC_DEF("freplace+", EXT, 0, SEC_ATTACH_BTF, attach_trace),
SEC_DEF("lsm+", LSM, BPF_LSM_MAC, SEC_ATTACH_BTF, attach_lsm),
SEC_DEF("lsm.s+", LSM, BPF_LSM_MAC, SEC_ATTACH_BTF | SEC_SLEEPABLE, attach_lsm),
--
2.52.0
next prev parent reply other threads:[~2026-01-07 6:45 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-07 6:43 [PATCH bpf-next v7 00/11] bpf: fsession support Menglong Dong
2026-01-07 6:43 ` [PATCH bpf-next v7 01/11] bpf: add " Menglong Dong
2026-01-07 6:43 ` [PATCH bpf-next v7 02/11] bpf: use last 8-bits for the nr_args in trampoline Menglong Dong
2026-01-07 7:11 ` bot+bpf-ci
2026-01-07 7:50 ` Menglong Dong
2026-01-07 6:43 ` [PATCH bpf-next v7 03/11] bpf: change prototype of bpf_session_{cookie,is_return} Menglong Dong
2026-01-07 6:43 ` [PATCH bpf-next v7 04/11] bpf: support fsession for bpf_session_is_return Menglong Dong
2026-01-07 7:11 ` bot+bpf-ci
2026-01-07 7:45 ` Menglong Dong
2026-01-07 6:43 ` [PATCH bpf-next v7 05/11] bpf: support fsession for bpf_session_cookie Menglong Dong
2026-01-07 6:43 ` [PATCH bpf-next v7 06/11] bpf,x86: introduce emit_st_r0_imm64() for trampoline Menglong Dong
2026-01-07 6:43 ` [PATCH bpf-next v7 07/11] bpf,x86: add fsession support for x86_64 Menglong Dong
2026-01-07 7:11 ` bot+bpf-ci
2026-01-07 7:55 ` Menglong Dong
2026-01-07 6:43 ` Menglong Dong [this message]
2026-01-07 6:43 ` [PATCH bpf-next v7 09/11] selftests/bpf: add testcases for fsession Menglong Dong
2026-01-07 6:43 ` [PATCH bpf-next v7 10/11] selftests/bpf: add testcases for fsession cookie Menglong Dong
2026-01-07 6:43 ` [PATCH bpf-next v7 11/11] selftests/bpf: test fsession mixed with fentry and fexit Menglong Dong
2026-01-07 6:59 ` [PATCH bpf-next v7 00/11] bpf: fsession support Menglong Dong
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