netdev - [PATCH v3 bpf-next 01/18] bpftool: support dumping BTF VAR's "extern" linkage

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Message-ID: <20210423181348.1801389-2-andrii@kernel.org>
Date:   Fri, 23 Apr 2021 11:13:31 -0700
From:   Andrii Nakryiko <andrii@...nel.org>
To:     <bpf@...r.kernel.org>, <netdev@...r.kernel.org>, <ast@...com>,
        <daniel@...earbox.net>
CC:     <andrii@...nel.org>, <kernel-team@...com>,
        Yonghong Song <yhs@...com>
Subject: [PATCH v3 bpf-next 01/18] bpftool: support dumping BTF VAR's "extern" linkage

Add dumping of "extern" linkage for BTF VAR kind. Also shorten
"global-allocated" to "global" to be in line with FUNC's "global".

Acked-by: Yonghong Song <yhs@...com>
Signed-off-by: Andrii Nakryiko <andrii@...nel.org>
---
 tools/bpf/bpftool/btf.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/bpf/bpftool/btf.c b/tools/bpf/bpftool/btf.c
index 62953bbf68b4..001749a34899 100644
--- a/tools/bpf/bpftool/btf.c
+++ b/tools/bpf/bpftool/btf.c
@@ -71,7 +71,9 @@ static const char *btf_var_linkage_str(__u32 linkage)
 	case BTF_VAR_STATIC:
 		return "static";
 	case BTF_VAR_GLOBAL_ALLOCATED:
-		return "global-alloc";
+		return "global";
+	case BTF_VAR_GLOBAL_EXTERN:
+		return "extern";
 	default:
 		return "(unknown)";
 	}
-- 
2.30.2