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AJvYcCWo2Z5f5QkXHOotnaQjnaMJfPJLO7seSA/f/LHCDVoexGw8hve+Q6lzrETfjHjs4QjzcI1n749/iw==@kvack.org X-Gm-Message-State: AOJu0YwK1dZf3HhLr8lka5dTDoOJaXLPkKO6AXCMt2i6fp2bLOOy9Ll6 0t5+k7M/NLFY7phCvERE0cAM+1+4BMJAgQ1aSvxtKITVL02Q8qxX2Ux+52MwbauF1yVdOHOT09b Z98MZHIjfcw4YwZcGt0AFD3kNJfI3G7RiFCEcVSbN X-Gm-Gg: ASbGncsCFPlqH7UfYZcpMpcj51Sz8Xr0NRuGkS+oCGDqf5/twAz27+QJl+OStchSUa7 kFJmCei4KGXP3/Nk8NUbsf6NHaXcfLqkuoMbSU81kdb1iiH/nM4H86yZ8ne71c9KerDquOBXeeV Qs0f+E/LAAId4/mL6Rql2v50YV8pFOgzBrteNeyeR3XP0VwQCPa9UphYmFBq+pvBnOCms5RuHDs OKYaXMuEpmNwinLgpchxeRMjN06BJ7fpJetHJiCUBFRzWuVtAyPISR1EGvA/tJLj4PhRGvFq5X/ 1VCGzQ== 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) 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 X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 1BD85C0008 X-Stat-Signature: neygmwktqzr46mtzfcjtyxpyknt5pqik X-Rspam-User: X-HE-Tag: 1763413637-242167 X-HE-Meta: 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 RRmyuvPR IsFP7QhgjI4nCYELHgKYU928bxwwK5CayFC7Md4uXh23pEabGY316L9spWAN5VcxE+D7AWCxTO36eUVfgD2y0fggHSiChUyBi0T9yxaEsCM0QOIDercfcbLUb8ovPCtI8k7gCfWbPXhtoOFdm5ECZBQ/b10ZmtLFbDdBPN69RvJmaBRZb/LBCPiHz/62MJ6q6MEiU/n1j809SEXd8VQ6VCdxd4Ljifq8dCat+mO+aNu6kRefL0/7tiQmGgrF1W8hgWK4yiBENxfMxL7R0nbj0+ye0cgBXnI5f7+lK X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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)