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From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Andrii Nakryiko <andrii@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>, Jiri Olsa <jolsa@kernel.org>,
	David Miller <davem@davemloft.net>,
	bpf@vger.kernel.org
Subject: [PATCH 1/1] libbpf: Provide GELF_ST_VISIBILITY() define for older libelf
Date: Sat, 8 May 2021 12:22:12 -0300	[thread overview]
Message-ID: <YJaspEh0qZr4LYOc@kernel.org> (raw)

Where that macro isn't available.

Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/bpf/libbpf_internal.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/lib/bpf/libbpf_internal.h b/tools/lib/bpf/libbpf_internal.h
index ee426226928f1283..acbcf6c7bdf82cf2 100644
--- a/tools/lib/bpf/libbpf_internal.h
+++ b/tools/lib/bpf/libbpf_internal.h
@@ -41,6 +41,11 @@
 #define ELF_C_READ_MMAP ELF_C_READ
 #endif
 
+/* Older libelf all end up in this expression, for both 32 and 64 bit */
+#ifndef GELF_ST_VISIBILITY
+#define GELF_ST_VISIBILITY(o) ((o) & 0x03)
+#endif
+
 #define BTF_INFO_ENC(kind, kind_flag, vlen) \
 	((!!(kind_flag) << 31) | ((kind) << 24) | ((vlen) & BTF_MAX_VLEN))
 #define BTF_TYPE_ENC(name, info, size_or_type) (name), (info), (size_or_type)
-- 
2.26.3


             reply	other threads:[~2021-05-08 15:22 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-08 15:22 Arnaldo Carvalho de Melo [this message]
2021-05-11 21:20 ` [PATCH 1/1] libbpf: Provide GELF_ST_VISIBILITY() define for older libelf patchwork-bot+netdevbpf

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