From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-lf1-f47.google.com (mail-lf1-f47.google.com [209.85.167.47]) (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 74F2034C9AF for ; Mon, 17 Nov 2025 21:07:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.47 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763413640; cv=none; b=mGJz5Gp8zjwjqFYoTNMAowVffXbHkx9/iPq50zDr/DDxC9NcEeQQMWwR/FQ2HRmGnmvRIM9Mku9TgOZ5muLTI6LmDqS2XIDpOsoqwvxMUrVz4iiwRWMYzVfFgSDj13yKNs3q6p4acLRBi86hd2Si3YoH05/KKvjOO4R0D25hYRc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763413640; c=relaxed/simple; bh=UxmlAnre1tVYYLXz6QjhoShZeYckMkMwCvEkzjPXsI8=; h=MIME-Version:References:In-Reply-To:From:Date:Message-ID:Subject: To:Cc:Content-Type; b=S+5ze5LKcKQbI/EPrijUbkUy0wny9euReW8AWC2GkZrk68rgUPBXLXJeoWCkg+EHr5oAB3OiWrFmD4OMphZWe4v4vogMCENIW7URie58GNSOUk8v8YWU+KP0npa6mnnHzJ9S1FB0bDa0P1M/qfpvNHnFr+ad06yp0+zJuTWG3A8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=nXpvWS2w; arc=none smtp.client-ip=209.85.167.47 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=google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="nXpvWS2w" Received: by mail-lf1-f47.google.com with SMTP id 2adb3069b0e04-5957ac0efc2so5233548e87.1 for ; Mon, 17 Nov 2025 13:07:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1763413636; x=1764018436; darn=vger.kernel.org; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=I+3ZnbBnm9x5rG+AzfKnEqBF2B1DtWvuci9iSsNvxto=; b=nXpvWS2wegxGuSyADug0MDEIPxD4CnEwuLpPYRNvqqXMnusDrkCfAnNTpY97PNIhj3 C+y+W+R80j5Y4GT0kE7r5DkStEG5uWvGgeBokHWw39doRWx6PV+p1GJ2Dgctzu6tQf8y cu8r7ozG3dowtrVT/wlbcjuFcw4qtN6CeyJkM2cbAPVHJGkrOYXjxwCzst3RuaxSzphc 6NSHgaBl8j2zBF3fKAX3FqVaik0XFQqtVgr82577VC8/x0KUWVIVHMkSvk17YH6knImX 7vfDpdxkhMAK3ss3S8CBA95Telxi6Olx62Ft4OiNWCVyOhz4oiYgkyFNWUreuMpJowRB RtOw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1763413636; x=1764018436; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=I+3ZnbBnm9x5rG+AzfKnEqBF2B1DtWvuci9iSsNvxto=; b=Fm92Frdt+qg2PA6qYXQ0fExzeWm6Jwx0buIFJv8KMRmPjQMEaQ9wysFWMIrHLwjwpZ QDC29u/8gz45ZEA+f2DJUyAIALhlMiAWJJUtzjymZSs8afhplmRnU7po4au7Q/JJifto OkwDxYZm28uy7E8RtQSjk2qZEWsieDbZqrSQGPQnQtqzU7JN+faQjOp1uH0N+o9h7nue 6DQ6VpDum7od/BxYIbCFTIhAbW9K2TLgP0XdPTJ1t67HAoXxGFmhIbBG9TLHEhuUUIFs OCNj9/DLydQ09Cur+1jVDkBCCboZYQG2qoZG4Cu2cWeJWbEslLrOGDiA3gEE+PYpOkda ubMA== X-Forwarded-Encrypted: i=1; AJvYcCXpLSZARNVbRhH2x+qS1WUODNgxdb7/GF/NGgImKc5yr0S3fUYeuw6ro+in7YBWQ/vqWYjwgJOJYSSJ6O+G@vger.kernel.org X-Gm-Message-State: AOJu0Yx+kas9k11FpC8haPpLipANMkogoUdapeBkOY+kq2Ge71+bm0RF Z+3KQVezl5Hd+TFh8PAZ/n1w/IrMq0gK3X6hWTjPF5KrhsK9vyClR8sLidOg/guWSrexMW0wJBn wkwxhDdvtxTFRmYY6A/tPsivlcH6qqYlSDzLasUL9 X-Gm-Gg: ASbGnctT+cqpeZdw4mDxK+qrC3nUq+cF4b8U2KCLOJZY1n/tg+97okyu4+kg2t3IOtp CaPCXAUlAnxN6AMgWUdGXbjIgG2z6X4Qkb7CCzKMaxKhp2ljBt5PecLAeICuRfEmv4bTlpqDFS9 SEheuHC2Z5DRcgD0d1uktMoDEWv4j7fUI4GVshqX34v2yOrxFAdD8TKeO/aXYWgDwpvs64fmJUF FbqRzyfacCiCisj6VkkyA/LyYJtwuOY+/xEU8hP5Dns9wsVAO8IcYBUl1wNYUjWKavcJcWGKPsS LZRNrQ== X-Google-Smtp-Source: AGHT+IEyRglFL6CLF2ix5p5nwaJTHq0lTJqTXp+UMeRzhbiWib00PWpc4ebiQNIEHbNxWSgpi8VFmGwgM1LVS1XHG0w= X-Received: by 2002:a05:6512:2216:b0:594:522b:c6a4 with SMTP id 2adb3069b0e04-595841c0afemr4885332e87.23.1763413635580; Mon, 17 Nov 2025 13:07:15 -0800 (PST) Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20251115233409.768044-1-pasha.tatashin@soleen.com> <20251115233409.768044-19-pasha.tatashin@soleen.com> In-Reply-To: From: David Matlack Date: Mon, 17 Nov 2025 13:06:47 -0800 X-Gm-Features: AWmQ_blb0RWuMLLJQNAkTQ6osFyJ4ZWbxByNX4sxBWFP3gs7sBB_s2cCPqr0fg8 Message-ID: Subject: Re: [PATCH v6 18/20] selftests/liveupdate: Add kexec-based selftest for session lifecycle To: Pasha Tatashin Cc: pratyush@kernel.org, jasonmiu@google.com, graf@amazon.com, rppt@kernel.org, rientjes@google.com, corbet@lwn.net, rdunlap@infradead.org, ilpo.jarvinen@linux.intel.com, kanie@linux.alibaba.com, ojeda@kernel.org, aliceryhl@google.com, masahiroy@kernel.org, akpm@linux-foundation.org, tj@kernel.org, yoann.congal@smile.fr, mmaurer@google.com, roman.gushchin@linux.dev, chenridong@huawei.com, axboe@kernel.dk, mark.rutland@arm.com, jannh@google.com, vincent.guittot@linaro.org, hannes@cmpxchg.org, dan.j.williams@intel.com, david@redhat.com, joel.granados@kernel.org, rostedt@goodmis.org, anna.schumaker@oracle.com, song@kernel.org, linux@weissschuh.net, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, gregkh@linuxfoundation.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, rafael@kernel.org, dakr@kernel.org, bartosz.golaszewski@linaro.org, cw00.choi@samsung.com, myungjoo.ham@samsung.com, yesanishhere@gmail.com, Jonathan.Cameron@huawei.com, quic_zijuhu@quicinc.com, aleksander.lobakin@intel.com, ira.weiny@intel.com, andriy.shevchenko@linux.intel.com, leon@kernel.org, lukas@wunner.de, bhelgaas@google.com, wagi@kernel.org, djeffery@redhat.com, stuart.w.hayes@gmail.com, ptyadav@amazon.de, lennart@poettering.net, brauner@kernel.org, linux-api@vger.kernel.org, linux-fsdevel@vger.kernel.org, saeedm@nvidia.com, ajayachandra@nvidia.com, jgg@nvidia.com, parav@nvidia.com, leonro@nvidia.com, witu@nvidia.com, hughd@google.com, skhawaja@google.com, chrisl@kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Mon, Nov 17, 2025 at 12:08=E2=80=AFPM David Matlack wrote: > > On Mon, Nov 17, 2025 at 11:27=E2=80=AFAM David Matlack wrote: > > > Putting it all together, here is what I'd recommend for this Makefile > > (drop-in replacement for the current Makefile). This will also make it > > easier for me to share the library code with VFIO selftests, which > > I'll need to do in the VFIO series. > > > > (Sorry in advance for the line wrap. I had to send this through gmail.) > > Oops I dropped the build rule for liveupdate.c. Here it is with that incl= uded: > > # SPDX-License-Identifier: GPL-2.0-only > > LIBLIVEUPDATE_C +=3D luo_test_utils.c > > TEST_GEN_PROGS +=3D liveupdate > TEST_GEN_PROGS_EXTENDED +=3D luo_kexec_simple > TEST_GEN_PROGS_EXTENDED +=3D luo_multi_session > > TEST_FILES +=3D do_kexec.sh > > include ../lib.mk > > CFLAGS +=3D $(KHDR_INCLUDES) > CFLAGS +=3D -Wall -O2 -Wno-unused-function > CFLAGS +=3D -MD > CFLAGS +=3D $(EXTRA_CFLAGS) > > LIBLIVEUPDATE_O :=3D $(patsubst %.c, $(OUTPUT)/%.o, $(LIBLIVEUPDATE_C)) > TEST_PROGS :=3D $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) Correction: I forgot that TEST_PROGS is reserved for test shell scripts, so this variable needs a different name. > TEST_PROGS_O :=3D $(patsubst %, %.o, $(TEST_PROGS)) > > TEST_DEP_FILES +=3D $(patsubst %.o, %.d, $(LIBLIVEUPDATE_O)) > TEST_DEP_FILES +=3D $(patsubst %.o, %.d, $(TEST_PROGS_O)) > -include $(TEST_DEP_FILES) > > $(LIBLIVEUPDATE_O): $(OUTPUT)/%.o: %.c > $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@ > > $(TEST_PROGS): %: %.o $(LIBLIVEUPDATE_O) > $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) $< > $(LIBLIVEUPDATE_O) $(LDLIBS) -o $@ > > EXTRA_CLEAN +=3D $(LIBLIVEUPDATE_O) > EXTRA_CLEAN +=3D $(TEST_PROGS_O) > EXTRA_CLEAN +=3D $(TEST_DEP_FILES)