From: Ian Rogers <irogers@google.com>
To: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Kan Liang <kan.liang@linux.intel.com>,
Athira Rajeev <atrajeev@linux.vnet.ibm.com>,
Dominique Martinet <asmadeus@codewreck.org>,
Yang Jihong <yangjihong@bytedance.com>,
Colin Ian King <colin.i.king@gmail.com>,
Chaitanya S Prakash <chaitanyas.prakash@arm.com>,
"Masami Hiramatsu (Google)" <mhiramat@kernel.org>,
James Clark <james.clark@linaro.org>,
John Garry <john.g.garry@oracle.com>,
Junhao He <hejunhao3@huawei.com>,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 6/6] perf test: Make watchpoint data 32-bits on i386
Date: Tue, 3 Sep 2024 22:06:06 -0700 [thread overview]
Message-ID: <20240904050606.752788-7-irogers@google.com> (raw)
In-Reply-To: <20240904050606.752788-1-irogers@google.com>
i386 only supports watchpoints up to size 4, 8 bytes causes extra
counts and test failures.
Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/perf/tests/wp.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/tools/perf/tests/wp.c b/tools/perf/tests/wp.c
index cc8719609b19..6c178985e37f 100644
--- a/tools/perf/tests/wp.c
+++ b/tools/perf/tests/wp.c
@@ -20,7 +20,12 @@ do { \
TEST_ASSERT_VAL(text, count == val); \
} while (0)
+#ifdef __i386__
+/* Only breakpoint length less-than 8 has hardware support on i386. */
+volatile u32 data1;
+#else
volatile u64 data1;
+#endif
volatile u8 data2[3];
#ifndef __s390x__
--
2.46.0.469.g59c65b2a67-goog
next prev parent reply other threads:[~2024-09-04 5:06 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-04 5:06 [PATCH v2 0/6] Various 32-bit and test fixes Ian Rogers
2024-09-04 5:06 ` [PATCH v2 1/6] perf pmus: Fix name comparisons on 32-bit systems Ian Rogers
2024-09-04 5:06 ` [PATCH v2 2/6] perf time-utils: Fix 32-bit nsec parsing Ian Rogers
2024-09-04 5:06 ` [PATCH v2 3/6] perf test: Skip uprobe test if probe command isn't present Ian Rogers
2024-09-04 5:06 ` [PATCH v2 4/6] perf parse-events: Add default_breakpoint_len helper Ian Rogers
2024-09-04 5:06 ` [PATCH v2 5/6] perf parse-events: Vary default_breakpoint_len on i386 and arm64 Ian Rogers
2024-09-04 5:06 ` Ian Rogers [this message]
2024-09-04 12:51 ` [PATCH v2 0/6] Various 32-bit and test fixes Arnaldo Carvalho de Melo
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