From: Menglong Dong <menglong8.dong@gmail.com>
To: 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 v11 08/12] libbpf: add fsession support
Date: Fri, 23 Jan 2026 15:35:28 +0800 [thread overview]
Message-ID: <20260123073532.238985-9-dongml2@chinatelecom.cn> (raw)
In-Reply-To: <20260123073532.238985-1-dongml2@chinatelecom.cn>
Add BPF_TRACE_FSESSION to libbpf.
Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn>
---
v10:
- split the modification to bpftool to a separate patch
v5:
- remove the handling of BPF_TRACE_SESSION in legacy fallback path for
BPF_RAW_TRACEPOINT_OPEN
- use fsession terminology consistently
---
tools/lib/bpf/bpf.c | 1 +
tools/lib/bpf/libbpf.c | 3 +++
2 files changed, 4 insertions(+)
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 bbcfd72b07d5..0c8bf0b5cce4 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:[~2026-01-23 7:36 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-23 7:35 [PATCH bpf-next v11 00/12] bpf: fsession support Menglong Dong
2026-01-23 7:35 ` [PATCH bpf-next v11 01/12] bpf: add " Menglong Dong
2026-01-23 7:35 ` [PATCH bpf-next v11 02/12] bpf: use the least significant byte for the nr_args in trampoline Menglong Dong
2026-01-23 8:07 ` bot+bpf-ci
2026-01-23 8:29 ` Menglong Dong
2026-01-23 9:21 ` Menglong Dong
2026-01-23 22:57 ` Andrii Nakryiko
2026-01-24 1:14 ` Menglong Dong
2026-01-23 7:35 ` [PATCH bpf-next v11 03/12] bpf: change prototype of bpf_session_{cookie,is_return} Menglong Dong
2026-01-23 7:35 ` [PATCH bpf-next v11 04/12] bpf: support fsession for bpf_session_is_return Menglong Dong
2026-01-23 8:07 ` bot+bpf-ci
2026-01-23 8:15 ` Menglong Dong
2026-01-23 7:35 ` [PATCH bpf-next v11 05/12] bpf: support fsession for bpf_session_cookie Menglong Dong
2026-01-23 7:35 ` [PATCH bpf-next v11 06/12] bpf,x86: introduce emit_store_stack_imm64() for trampoline Menglong Dong
2026-01-23 7:35 ` [PATCH bpf-next v11 07/12] bpf,x86: add fsession support for x86_64 Menglong Dong
2026-01-23 7:35 ` Menglong Dong [this message]
2026-01-23 7:35 ` [PATCH bpf-next v11 09/12] bpftool: add fsession support Menglong Dong
2026-01-23 7:35 ` [PATCH bpf-next v11 10/12] selftests/bpf: add testcases for fsession Menglong Dong
2026-01-23 7:57 ` bot+bpf-ci
2026-01-23 8:05 ` Menglong Dong
2026-01-23 7:35 ` [PATCH bpf-next v11 11/12] selftests/bpf: add testcases for fsession cookie Menglong Dong
2026-01-23 7:35 ` [PATCH bpf-next v11 12/12] selftests/bpf: test fsession mixed with fentry and fexit Menglong Dong
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