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Subject[tip:perf/urgent] perf symbols: Add fallback definitions for GELF_ST_VISIBILITY()
Commit-ID:  843cf70ed29a7fb51f1e796c1d6e1ba3620250ac
Gitweb: https://git.kernel.org/tip/843cf70ed29a7fb51f1e796c1d6e1ba3620250ac
Author: Arnaldo Carvalho de Melo <acme@redhat.com>
AuthorDate: Mon, 4 Feb 2019 15:48:03 -0300
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 4 Feb 2019 15:50:37 -0300

perf symbols: Add fallback definitions for GELF_ST_VISIBILITY()

Those aren't present in Alpine Linux 3.4 to edge, so provide fallback
defines to get the next patch building there keeping the build
bisectable.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nick Clifton <nickc@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lkml.kernel.org/n/tip-03cg3gya2ju4ba2x6ibb9fuz@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/symbol-elf.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index 66a84d5846c8..695a73940329 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -19,6 +19,20 @@
#define EM_AARCH64 183 /* ARM 64 bit */
#endif

+#ifndef ELF32_ST_VISIBILITY
+#define ELF32_ST_VISIBILITY(o) ((o) & 0x03)
+#endif
+
+/* For ELF64 the definitions are the same. */
+#ifndef ELF64_ST_VISIBILITY
+#define ELF64_ST_VISIBILITY(o) ELF32_ST_VISIBILITY (o)
+#endif
+
+/* How to extract information held in the st_other field. */
+#ifndef GELF_ST_VISIBILITY
+#define GELF_ST_VISIBILITY(val) ELF64_ST_VISIBILITY (val)
+#endif
+
typedef Elf64_Nhdr GElf_Nhdr;

#ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
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