Changes in Makefile

108e5e68 - selftests/powerpc: make sub-folders buildable on their own

Thu, 29 Feb 2024 09:37:11 +0000

selftests/powerpc: make sub-folders buildable on their ownBuild breaks when executing make with run_tests for sub-foldersunder powerpc. This is because, CFLAGS and GIT_VERSION macros aredefined in Makefile of toplevel powerpc folder. make: Entering directory '/home/maddy/linux/tools/testing/selftests/powerpc/mm' gcc hugetlb_vs_thp_test.c ../harness.c ../utils.c -o /home/maddy/selftest_output//hugetlb_vs_thp_test hugetlb_vs_thp_test.c:6:10: fatal error: utils.h: No such file or directory 6 | #include "utils.h" | ^~~~~~~~~ compilation terminated.Fix this by adding the flags.mk in each sub-folder Makefile. Also removethe CFLAGS and GIT_VERSION macros from powerpc/ folder Makefile sincethe same is definied in flags.mkSigned-off-by: Madhavan Srinivasan Signed-off-by: Michael Ellerman Link: https://msgid.link/20240229093711.581230-3-maddy@linux.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/tm/Makefile

4f11410b - selftests/powerpc: Fix incorrect kernel headers search path

Fri, 27 Jan 2023 13:57:42 +0000

selftests/powerpc: Fix incorrect kernel headers search pathUse $(KHDR_INCLUDES) as lookup path for kernel headers. This preventsbuilding against kernel headers from the build environment in scenarioswhere kernel headers are installed into a specific output directory(O=...).Cc: stable@vger.kernel.org # v5.18+Signed-off-by: Mathieu Desnoyers Acked-by: Shuah Khan Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20230127135755.79929-22-mathieu.desnoyers@efficios.com List of files: /linux-6.15/tools/testing/selftests/powerpc/tm/Makefile

6ba4a2d3 - selftests/powerpc: Always build the tm-poison test 64-bit

Fri, 03 Apr 2020 09:56:56 +0000

selftests/powerpc: Always build the tm-poison test 64-bitThe tm-poison test includes inline asm which is 64-bit only, so thetest must be built 64-bit in order to work.Otherwise it fails, eg: # file tm-poison tm-poison: ELF 32-bit MSB executable, PowerPC or cisco 4500, version 1 (SYSV) ... # ./tm-poison test: tm_poison_test Unknown value 0x1fff71150 leaked into f31! Unknown value 0x1fff710c0 leaked into vr31! failure: tm_poison_testFixes: a003365cab64 ("powerpc/tm: Add tm-poison test")Signed-off-by: Michael Ellerman Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200403095656.3772005-1-mpe@ellerman.id.au List of files: /linux-6.15/tools/testing/selftests/powerpc/tm/Makefile

850507f3 - selftests/powerpc: Turn off timeout setting for benchmarks, dscr, signal, tm

Wed, 18 Mar 2020 06:00:04 +0000

selftests/powerpc: Turn off timeout setting for benchmarks, dscr, signal, tmSome specific tests in powerpc can take longer than the default 45seconds that added in commit 852c8cbf34d3 ("selftests/kselftest/runner.sh:Add 45 second timeout per test") to run, the following test result wascollected across 2 Power8 nodes and 1 Power9 node in our pool: powerpc/benchmarks/futex_bench - 52s powerpc/dscr/dscr_sysfs_test - 116s powerpc/signal/signal_fuzzer - 88s powerpc/tm/tm_unavailable_test - 168s powerpc/tm/tm-poison - 240sThus they will fail with TIMEOUT error. Disable the timeout settingfor these sub-tests to allow them finish properly.https://bugs.launchpad.net/bugs/1864642Fixes: 852c8cbf34d3 ("selftests/kselftest/runner.sh: Add 45 second timeout per test")Signed-off-by: Po-Hsu Lin Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200318060004.10685-1-po-hsu.lin@canonical.com List of files: /linux-6.15/tools/testing/selftests/powerpc/tm/Makefile

915b7f6f - selftests/powerpc: Add tm-signal-pagefault test

Tue, 11 Feb 2020 03:38:30 +0000

selftests/powerpc: Add tm-signal-pagefault testThis test triggers a TM Bad Thing by raising a signal in transactional stateand forcing a pagefault to happen in kernelspace when the kernel signalhandling code first touches the user signal stack.This is inspired by the test tm-signal-context-force-tm but uses userfaultfd tomake the test deterministic. While this test always triggers the bug in onerun, I had to execute tm-signal-context-force-tm several times (the test runs5000 times each execution) to trigger the same bug.tm-signal-context-force-tm is kept instead of replaced because, while this testis more reliable and triggers the same bug, tm-signal-context-force-tm has abetter coverage, in the sense that by running the test several times it mighttrigger the pagefault and/or be preempted at different places.v3: skip test if userfaultfd is unavailable.Signed-off-by: Gustavo Luiz Duarte Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200211033831.11165-2-gustavold@linux.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/tm/Makefile

a003365c - powerpc/tm: Add tm-poison test

Wed, 04 Sep 2019 04:55:29 +0000

powerpc/tm: Add tm-poison testAdd TM selftest to check if FP or VEC register values from one processcan leak into another process when both run on the same CPU.Signed-off-by: Gustavo Romero Signed-off-by: Michael Neuling Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20190904045529.23002-3-gromero@linux.vnet.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/tm/Makefile

a65329aa - selftests/powerpc: New TM signal self test

Tue, 08 Jan 2019 11:31:21 +0000

selftests/powerpc: New TM signal self testA new self test that forces MSR[TS] to be set without calling any TMinstruction. This test also tries to cause a page fault at a signalhandler, exactly between MSR[TS] set and tm_recheckpoint(), forcingthread->texasr to be rewritten with TEXASR[FS] = 0, which will cause a BUGwhen tm_recheckpoint() is called.This test is not deterministic, since it is hard to guarantee that the pageaccess will cause a page fault. In order to force more page faults atsignal context, the signal handler and the ucontext are being mapped into aMADV_DONTNEED memory chunks.Tests have shown that the bug could be exposed with few interactions in abuggy kernel. This test is configured to loop 5000x, having a good chanceto hit the kernel issue in just one run. This self test takes less thantwo seconds to run.This test uses set/getcontext because the kernel will recheckpointzeroed structures, causing the test to segfault, which is undesired becausethe test needs to rerun, so, there is a signal handler for SIGSEGV whichwill restart the test.v2: Uses the MADV_DONTNEED memory advicev3: Fix memcpy and 32-bits compilationv4: Does not define unused macrosSigned-off-by: Breno Leitao Signed-off-by: Michael Ellerman List of files: /linux-6.15/tools/testing/selftests/powerpc/tm/Makefile

34642d70 - selftests/powerpc: Add checks for transactional sigreturn

Mon, 26 Nov 2018 20:12:01 +0000

selftests/powerpc: Add checks for transactional sigreturnThis is a new test case that creates a signal and starts a suspendedtransaction inside the signal handler.It returns from the signal handler with the CPU at suspended state, butwithout setting user context MSR Transaction State (TS) field.The kernel signal handler code should be able to handle this discrepancyinstead of crashing.This code could be compiled and used to test 32 and 64-bits signalhandlers.Signed-off-by: Breno Leitao Signed-off-by: Gustavo Romero Signed-off-by: Michael Ellerman List of files: /linux-6.15/tools/testing/selftests/powerpc/tm/Makefile

7e0cf1c9 - selftests/powerpc: Fix Makefiles for headers_install change

Fri, 28 Sep 2018 04:53:18 +0000

selftests/powerpc: Fix Makefiles for headers_install changeCommit b2d35fa5fc80 ("selftests: add headers_install to lib.mk")introduced a requirement that Makefiles more than one level below theselftests directory need to define top_srcdir, but it didn't updateany of the powerpc Makefiles.This broke building all the powerpc selftests with eg: make[1]: Entering directory '/src/linux/tools/testing/selftests/powerpc' BUILD_TARGET=/src/linux/tools/testing/selftests/powerpc/alignment; mkdir -p $BUILD_TARGET; make OUTPUT=$BUILD_TARGET -k -C alignment all make[2]: Entering directory '/src/linux/tools/testing/selftests/powerpc/alignment' ../../lib.mk:20: ../../../../scripts/subarch.include: No such file or directory make[2]: *** No rule to make target '../../../../scripts/subarch.include'. make[2]: Failed to remake makefile '../../../../scripts/subarch.include'. Makefile:38: recipe for target 'alignment' failedFix it by setting top_srcdir in the affected Makefiles.Fixes: b2d35fa5fc80 ("selftests: add headers_install to lib.mk")Signed-off-by: Michael Ellerman List of files: /linux-6.15/tools/testing/selftests/powerpc/tm/Makefile

9c96c932 - selftest/powerpc: Add test for sigreturn in transaction

Mon, 22 Aug 2016 16:53:02 +0000

selftest/powerpc: Add test for sigreturn in transactionEnsure that kernel is throwing away the suspended transaction whensigreturn() is called otherwise it if fails to restore the signalframe's TM SPRS.Signed-off-by: Laurent Dufour Reviewed-by: Cyril Bur [mpe: Add have_htm() check, minor formatting, add SPDX tag]Signed-off-by: Michael Ellerman List of files: /linux-6.15/tools/testing/selftests/powerpc/tm/Makefile

b7abbd5a - selftests/powerpc: Fix missing clean of pmu/lib.o

Wed, 28 Feb 2018 04:15:56 +0000

selftests/powerpc: Fix missing clean of pmu/lib.oThe tm-resched-dscr test links against pmu/lib.o, but we don't have arule to clean pmu/lib.o. This can lead to a build break if you buildfor big endian and then little, or vice versa.Fix it by making tm-resched-dscr depend on pmu/lib.c, causing the codeto be built directly in, meaning no .o is generated.Signed-off-by: Michael Ellerman List of files: /linux-6.15/tools/testing/selftests/powerpc/tm/Makefile

a08082f8 - powerpc/selftests: Check endianness on trap in TM

Sun, 31 Dec 2017 23:20:46 +0000

powerpc/selftests: Check endianness on trap in TMAdd a selftest to check if endianness is flipped inadvertently to BE(MSR.LE set to zero) on BE and LE machines when a trap is caught intransactional mode and load_fp and load_vec are zero, i.e. when MSR.FPand MSR.VEC are zeroed (disabled).Signed-off-by: Gustavo Romero Signed-off-by: Michael Ellerman List of files: /linux-6.15/tools/testing/selftests/powerpc/tm/Makefile

77fad8bf - selftests/powerpc: Check FP/VEC on exception in TM

Wed, 01 Nov 2017 19:23:41 +0000

selftests/powerpc: Check FP/VEC on exception in TMAdd a self test to check if FP/VEC/VSX registers are sane (restoredcorrectly) after a FP/VEC/VSX unavailable exception is caught during atransaction.This test checks all possibilities in a thread regarding the combinationof MSR.[FP|VEC] states in a thread and for each scenario raises aFP/VEC/VSX unavailable exception in transactional state, verifying ifvs0 and vs32 registers, which are representatives of FP/VEC/VSX regsets, are not corrupted.Signed-off-by: Gustavo Romero Signed-off-by: Breno Leitao Signed-off-by: Cyril Bur Signed-off-by: Michael Ellerman List of files: /linux-6.15/tools/testing/selftests/powerpc/tm/Makefile

b2441318 - License cleanup: add SPDX GPL-2.0 license identifier to files with no license

Wed, 01 Nov 2017 14:07:57 +0000

License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseMany source files in the tree are missing licensing information, whichmakes it harder for compliance tools to determine the correct license.By default all files without license information are under the defaultlicense of the kernel, which is GPL version 2.Update the files which contain no license information with the 'GPL-2.0'SPDX license identifier. The SPDX identifier is a legally bindingshorthand, which can be used instead of the full boiler plate text.This patch is based on work done by Thomas Gleixner and Kate Stewart andPhilippe Ombredanne.How this work was done:Patches were generated and checked against linux-4.14-rc6 for a subset ofthe use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information,Further patches will be generated in subsequent months to fix up caseswhere non-standard license headers were used, and references to licensehad to be inferred by heuristics based on keywords.The analysis to determine which SPDX License Identifier to be applied toa file was done in a spreadsheet of side by side results from of theoutput of two independent scanners (ScanCode & Windriver) producing SPDXtag:value files created by Philippe Ombredanne. Philippe prepared thebase worksheet, and did an initial spot review of a few 1000 files.The 4.13 kernel was the starting point of the analysis with 60,537 filesassessed. Kate Stewart did a file by file comparison of the scannerresults in the spreadsheet to determine which SPDX license identifier(s)to be applied to the file. She confirmed any determination that was notimmediately clear with lawyers working with the Linux Foundation.Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines).All documentation files were explicitly excluded.The following heuristics were used to determine which SPDX licenseidentifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time.In total, over 70 hours of logged manual review was done on thespreadsheet to determine the SPDX license identifiers to apply to thesource files by Kate, Philippe, Thomas and, in some cases, confirmationby lawyers working with the Linux Foundation.Kate also obtained a third independent scan of the 4.13 code base fromFOSSology, and compared selected files where the other two scannersdisagreed against that SPDX file, to see if there was new insights. TheWindriver scanner is based on an older version of FOSSology in part, sothey are related.Thomas did random spot checks in about 500 files from the spreadsheetsfor the uapi headers and agreed with SPDX license identifier in thefiles he inspected. For the non-uapi files Thomas did random spot checksin about 15000 files.In initial set of patches against 4.14-rc6, 3 files were found to havecopy/paste license identifier errors, and have been fixed to reflect thecorrect identifier.Additionally Philippe spent 10 hours this week doing a detailed manualinspection and review of the 12,461 patched files from the initial patchversion early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correctThis produced a worksheet with 20 files needing minor correction. Thisworksheet was then exported into 3 different .csv files for thedifferent types of files to be modified.These .csv files were then reviewed by Greg. Thomas wrote a script toparse the csv files and add the proper SPDX tag to the file, in theformat that the file expected. This script was further refined by Gregbased on the output to detect more types of files automatically and todistinguish between header and source .c files (which need differentcomment types.) Finally Greg ran the script using the .csv files togenerate the patches.Reviewed-by: Kate Stewart Reviewed-by: Philippe Ombredanne Reviewed-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/tools/testing/selftests/powerpc/tm/Makefile

99597ced - selftests/powerpc: Improve tm-resched-dscr

Thu, 17 Aug 2017 01:06:47 +0000

selftests/powerpc: Improve tm-resched-dscrThe tm-resched-dscr self test can, in some situations, run forseveral minutes before being successfully interrupted by the contextswitch it needs in order to perform the test. This often seems tooccur when the test is being run in a virtual machine.Improve the test by running it under eat_cpu() to guaranteecontention for the CPU and increase the chance of a context switch.In practice this seems to reduce the test time, in some cases, frommore than two minutes to under a second.Also remove the "progress dots" so that if the test does run for along time, it doesn't produce large amounts of unnecessary output.Signed-off-by: Sam Bobroff Signed-off-by: Michael Ellerman List of files: /linux-6.15/tools/testing/selftests/powerpc/tm/Makefile

cde97f84 - selftests/powerpc: Test TM and VMX register state

Mon, 08 May 2017 07:16:27 +0000

selftests/powerpc: Test TM and VMX register stateTest that the VMX checkpointed register state is maintained when a VMXunavailable exception is taken during a transaction.Thanks to Breno Leitao andGustavo Bueno Romero for the original test thisis based heavily on.Signed-off-by: Michael Neuling Reviewed-by: Cyril Bur [mpe: Add to .gitignore, always build it 64-bit to fix build errors]Signed-off-by: Michael Ellerman List of files: /linux-6.15/tools/testing/selftests/powerpc/tm/Makefile

68bd42d9 - selftests/powerpc: Fix remaining fallout from recent changes

Thu, 09 Feb 2017 08:56:30 +0000

selftests/powerpc: Fix remaining fallout from recent changesIn benchmarks we need to use $(TEST_GEN_PROGS) after we include lib.mk,because lib.mk does the substitution to add $(OUTPUT).In math the vmx and fpu names were typoed so they no longer matchedcorrectly, put back the 'v' and 'f'.In tm we need to substitute $(OUTPUT) into SIGNAL_CONTEXT_CHK_TESTS sothat the rule matches.In pmu there is an extraneous ':' on the end of $$BUILD_TARGET for theclean and install rules, which breaks the logic in the child Makefiles.Fixes: a8ba798bc8ec ("selftests: enable O and KBUILD_OUTPUT")Signed-off-by: Michael Ellerman Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/powerpc/tm/Makefile

a8ba798b - selftests: enable O and KBUILD_OUTPUT

Tue, 29 Nov 2016 11:55:52 +0000

selftests: enable O and KBUILD_OUTPUTEnable O and KBUILD_OUTPUT for kselftest. User could compile kselftestto another directory by passing O or KBUILD_OUTPUT. And O is highpriority than KBUILD_OUTPUT.Signed-off-by: Bamvor Jian Zhang Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/powerpc/tm/Makefile

88baa78d - selftests: remove duplicated all and clean target

Tue, 29 Nov 2016 11:55:47 +0000

selftests: remove duplicated all and clean targetCurrently, kselftest use TEST_PROGS, TEST_PROGS_EXTENDED, TEST_FILES toindicate the test program, extended test program and test files. It iseasy to understand the purpose of these files. But mix of compiled anduncompiled files lead to duplicated "all" and "clean" targets.In order to remove the duplicated targets, introduce TEST_GEN_PROGS,TEST_GEN_PROGS_EXTENDED, TEST_GEN_FILES to indicate the compiledobjects.Also, the later patch will make use of TEST_GEN_XXX to redirect thesefiles to output directory indicated by KBUILD_OUTPUT or O.And add this changes to "Contributing new tests(details)" ofDocumentation/kselftest.txt.Signed-off-by: Bamvor Jian Zhang Signed-off-by: Shuah Khan List of files: /linux-6.15/tools/testing/selftests/powerpc/tm/Makefile

dd9bda47 - selftests/powerpc: Add checks for transactional VSXs in signal contexts

Fri, 23 Sep 2016 06:18:23 +0000

selftests/powerpc: Add checks for transactional VSXs in signal contextsIf a thread receives a signal while transactional the kernel creates asecond context to show the transactional state of the process. Thistest loads some known values and waits for a signal and confirms thatthe expected values are in the signal context.Signed-off-by: Cyril Bur Signed-off-by: Michael Ellerman List of files: /linux-6.15/tools/testing/selftests/powerpc/tm/Makefile