linux-kernel - [PATCH bpf-next v5 2/3] libbpf: Move insn_is_pseudo_func() to libbpf

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Message-ID: <20240117111000.12763-3-yangtiezhu@loongson.cn>
Date: Wed, 17 Jan 2024 19:09:59 +0800
From: Tiezhu Yang <yangtiezhu@...ngson.cn>
To: Alexei Starovoitov <ast@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	Andrii Nakryiko <andrii@...nel.org>
Cc: Eduard Zingerman <eddyz87@...il.com>,
	John Fastabend <john.fastabend@...il.com>,
	Jiri Olsa <jolsa@...nel.org>,
	Hou Tao <houtao@...weicloud.com>,
	Song Liu <song@...nel.org>,
	bpf@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH bpf-next v5 2/3] libbpf: Move insn_is_pseudo_func() to libbpf_internal.h

Currently, insn_is_pseudo_func() is only used in libbpf.c, move it
to libbpf_internal.h so that it can be used in test_verifier, this
is preparation for later patch.

Suggested-by: Song Liu <song@...nel.org>
Signed-off-by: Tiezhu Yang <yangtiezhu@...ngson.cn>
---
 tools/lib/bpf/libbpf.c          | 5 -----
 tools/lib/bpf/libbpf_internal.h | 5 +++++
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index c5a42ac309fd..259d585d6ff5 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -748,11 +748,6 @@ static bool is_call_insn(const struct bpf_insn *insn)
 	return insn->code == (BPF_JMP | BPF_CALL);
 }
 
-static bool insn_is_pseudo_func(struct bpf_insn *insn)
-{
-	return is_ldimm64_insn(insn) && insn->src_reg == BPF_PSEUDO_FUNC;
-}
-
 static int
 bpf_object__init_prog(struct bpf_object *obj, struct bpf_program *prog,
 		      const char *name, size_t sec_idx, const char *sec_name,
diff --git a/tools/lib/bpf/libbpf_internal.h b/tools/lib/bpf/libbpf_internal.h
index 27e4e320e1a6..a9c337345aff 100644
--- a/tools/lib/bpf/libbpf_internal.h
+++ b/tools/lib/bpf/libbpf_internal.h
@@ -532,6 +532,11 @@ static inline bool is_ldimm64_insn(struct bpf_insn *insn)
 	return insn->code == (BPF_LD | BPF_IMM | BPF_DW);
 }
 
+static inline bool insn_is_pseudo_func(struct bpf_insn *insn)
+{
+	return is_ldimm64_insn(insn) && insn->src_reg == BPF_PSEUDO_FUNC;
+}
+
 /* if fd is stdin, stdout, or stderr, dup to a fd greater than 2
  * Takes ownership of the fd passed in, and closes it if calling
  * fcntl(fd, F_DUPFD_CLOEXEC, 3).
-- 
2.42.0