From e555b4b8d7b2844a9e48e06a7c3e4f9e44af847f Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Mon, 19 Oct 2020 12:26:45 -0300
Subject: perf tools: Update copy of libbpf's hashmap.c

To pick the changes in:

  85367030a6c7ef33 ("libbpf: Centralize poisoning and poison reallocarray()")
  7d9c71e10baa3496 ("libbpf: Extract generic string hashing function for reuse")

That don't entail any changes in tools/perf.

This addresses this perf build warning:

  Warning: Kernel ABI header at 'tools/perf/util/hashmap.h' differs from latest version at 'tools/lib/bpf/hashmap.h'
  diff -u tools/perf/util/hashmap.h tools/lib/bpf/hashmap.h

Not a kernel ABI, its just that this uses the mechanism in place for
checking kernel ABI files drift.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andriin@fb.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/hashmap.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'tools/perf/util/hashmap.c')

diff --git a/tools/perf/util/hashmap.c b/tools/perf/util/hashmap.c
index a405dad068f5..3c20b126d60d 100644
--- a/tools/perf/util/hashmap.c
+++ b/tools/perf/util/hashmap.c
@@ -15,6 +15,9 @@
 /* make sure libbpf doesn't use kernel-only integer typedefs */
 #pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64
 
+/* prevent accidental re-addition of reallocarray() */
+#pragma GCC poison reallocarray
+
 /* start with 4 buckets */
 #define HASHMAP_MIN_CAP_BITS 2
 
-- 
cgit