From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-dy1-f201.google.com (mail-dy1-f201.google.com [74.125.82.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F397B2FF154 for ; Mon, 26 Jan 2026 22:06:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769465163; cv=none; b=lxieaEYxbiVkfJ3DqxIptZMOqA0rtyLdYDeAxpvrALlzzDJYNhhJv7cEU4Pp5YA9OYm70kJqs+v1WQdyxcncoAZ8scEZJpz6XOosjOWabIfyARUw1AdVa9BKU28TcNZCI1dl3D+OmNcId8OMRuPwifvsp19LPvE7wGJnnd+Tmsc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769465163; c=relaxed/simple; bh=38ko2KHDWi/gZ4iTRLKTLFlc37YFOdOAQ51KN2SHR0M=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=lNhjQqv6qthDfj07WN0c+Li56Hr5HIPOtaQ6n0xwufAQJ9mSN9PUm81A0+IucOJY6tcMz+JSucrZt9jtlc0hgvVOdYe6Gp3IxUSIIUQxQEeJ1z2loKMZB94HRgI6LANfRKUkdhSd8s3PdGnlNvbzgREdxIzYGfLu/jk905KJMu0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=FjmcWBec; arc=none smtp.client-ip=74.125.82.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="FjmcWBec" Received: by mail-dy1-f201.google.com with SMTP id 5a478bee46e88-2b71bdcd037so3072206eec.1 for ; Mon, 26 Jan 2026 14:06:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1769465161; x=1770069961; darn=vger.kernel.org; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=lvPUN1XCezqfBWMGY+HqHwWXFtyxQ+bm96S5E8YV+DI=; b=FjmcWBechZ55hORxJFKv0WmzMe7VAe4at+kIDybZVdBZPtZUqZCaz8Sv16q4yH1JtW LPNzNd2cRPQ1uu/6JCF7rs9BRGGfSRuDNHT3gA9tTYz3tz9BIQyWnHHJdi++xNkdBzrs ZxE1U2E01S1J3bOrLyZRfKLS8NO25skCrkO8zGSv4M1CwhSn3Nw3BlnVllzY0XJwp8gf ogycSUl30pl5tWob3gYmtZRYkPsy2ziUZT5yycdnF16e8Nd6FXNtbTK4hhVGEv8CWnGk P5q4ZHvrouUts0219t4etfJBBqSBeHejC50jsg4FPsJBIJ8jr8irvfLSkcZW/xId8JPc SepA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769465161; x=1770069961; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=lvPUN1XCezqfBWMGY+HqHwWXFtyxQ+bm96S5E8YV+DI=; b=GajWs2bbfXFxxND3BL6a0UEUPaxIcwQ5G9iY6IYX7U++jf+eXLVUCvJ8tZO7wxo/gI R8HovWLEHke8Atvg5HJplFvfTBeCJewFlsDHh88mDjecV+fS+xVQAT53YqZwzLOWyLKd 21nZRaz+1S/G4yjrG/0yXU+JCFmFbQg60KmilFt6a5H7kpssZ0LoBtqDZt6Zk8pBGHZt Y48tVdI0mrGr7TmSIQfEJzA0fL0cTdSjDAWUU8v1+NumtDuDJZQ6jbdSXQrByihE/ioh Ky0AMCcNggxE9vhydR/VmZojBQgnhiYu3zpwEMwJ2Gm1Z8YKrUp5Yy6cPPlEqPfNet7d aZfw== X-Forwarded-Encrypted: i=1; AJvYcCUeIpS93pz/WRYQQuPF1woKYpbe3jsEJh6w4GE0nKSoqqEnxrdLSOvlRCx/8YrDQ6/Der133h9hj5HZSFM=@vger.kernel.org X-Gm-Message-State: AOJu0YyLFHcGL6+uOxU3wO1DlMBMTzB/yKxoyUuVDUZS1UjcicS8F2mH qAVgvRF8PskSZmNOBx3pweYdTuH2dxZkXxl1sznQpGOFa6u9jAdRlMlCbK8rq+S6S01aQRkB5Ox oePLf0LxRcQ== X-Received: from dyaw18-n1.prod.google.com ([2002:a05:693c:4152:10b0:2b7:53fc:fbb0]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7300:ec16:b0:2b7:4f83:9a84 with SMTP id 5a478bee46e88-2b7639b902dmr2600044eec.17.1769465161226; Mon, 26 Jan 2026 14:06:01 -0800 (PST) Date: Mon, 26 Jan 2026 14:05:50 -0800 In-Reply-To: <20260126220550.2573257-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260126220550.2573257-1-irogers@google.com> X-Mailer: git-send-email 2.52.0.457.g6b5491de43-goog Message-ID: <20260126220550.2573257-4-irogers@google.com> Subject: [PATCH v2 3/3] perf thread-stack: Switch thread_stack__init to use e_machine From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , James Clark , Shimin Guo , Andi Kleen , Leo Yan , Yujie Liu , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Content-Type: text/plain; charset="UTF-8" The architecture type is used to set the retpoline state. Rather than use the arch string switch to using the ELF machine that's readily available within the thread. Signed-off-by: Ian Rogers --- tools/perf/util/thread-stack.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/thread-stack.c b/tools/perf/util/thread-stack.c index c6a0a27b12c2..c5ce741b0744 100644 --- a/tools/perf/util/thread-stack.c +++ b/tools/perf/util/thread-stack.c @@ -157,10 +157,10 @@ static int thread_stack__init(struct thread_stack *ts, struct thread *thread, if (thread__maps(thread) && maps__machine(thread__maps(thread))) { struct machine *machine = maps__machine(thread__maps(thread)); - const char *arch = perf_env__arch(machine->env); + uint16_t e_machine = thread__e_machine(thread, machine, /*e_flags=*/NULL); ts->kernel_start = machine__kernel_start(machine); - if (!strcmp(arch, "x86")) + if (e_machine == EM_X86_64 || e_machine == EM_386) ts->rstate = X86_RETPOLINE_POSSIBLE; } else { ts->kernel_start = 1ULL << 63; -- 2.52.0.457.g6b5491de43-goog