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fc16a5322e
7 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Shuah Khan
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93a4388b76 |
selftests: add build/cross-build dependency check script
Add build/cross-build dependency check script kselftest_deps.sh This script does the following: Usage: ./kselftest_deps.sh -[p] <compiler> [test_name] kselftest_deps.sh [-p] gcc kselftest_deps.sh [-p] gcc vm kselftest_deps.sh [-p] aarch64-linux-gnu-gcc kselftest_deps.sh [-p] aarch64-linux-gnu-gcc vm - Should be run in selftests directory in the kernel repo. - Checks if Kselftests can be built/cross-built on a system. - Parses all test/sub-test Makefile to find library dependencies. - Runs compile test on a trivial C file with LDLIBS specified in the test Makefiles to identify missing library dependencies. - Prints suggested target list for a system filtering out tests failed the build dependency check from the TARGETS in Selftests the main Makefile when optional -p is specified. - Prints pass/fail dependency check for each tests/sub-test. - Prints pass/fail targets and libraries. - Default: runs dependency checks on all tests. - Optional test name can be specified to check dependencies for it. To make LDLIBS parsing easier - change gpio and memfd Makefiles to use the same temporary variable used to find and add libraries to LDLIBS. - simlify LDLIBS append logic in intel_pstate/Makefile. Results from run on x86_64 system (trimmed detailed pass/fail list): ======================================================== Kselftest Dependency Check for [./kselftest_deps.sh gcc ] results... ======================================================== Checked tests defining LDLIBS dependencies -------------------------------------------------------- Total tests with Dependencies: 55 Pass: 53 Fail: 2 -------------------------------------------------------- Targets passed build dependency check on system: bpf capabilities filesystems futex gpio intel_pstate membarrier memfd mqueue net powerpc ptp rseq rtc safesetid timens timers vDSO vm -------------------------------------------------------- FAIL: netfilter/Makefile dependency check: -lmnl FAIL: gpio/Makefile dependency check: -lmount -------------------------------------------------------- Targets failed build dependency check on system: gpio netfilter -------------------------------------------------------- Missing libraries system -lmnl -lmount -------------------------------------------------------- ======================================================== Results from run on x86_64 system with aarch64-linux-gnu-gcc: (trimmed detailed pass/fail list): ======================================================== Kselftest Dependency Check for [./kselftest_deps.sh aarch64-linux-gnu-gcc ] results... ======================================================== Checked tests defining LDLIBS dependencies -------------------------------------------------------- Total tests with Dependencies: 55 Pass: 41 Fail: 14 -------------------------------------------------------- Targets failed build dependency check on system: bpf capabilities filesystems futex gpio intel_pstate membarrier memfd mqueue net powerpc ptp rseq rtc timens timers vDSO vm -------------------------------------------------------- -------------------------------------------------------- Targets failed build dependency check on system: bpf capabilities gpio memfd mqueue net netfilter safesetid vm -------------------------------------------------------- Missing libraries system -lcap -lcap-ng -lelf -lfuse -lmnl -lmount -lnuma -lpopt -lz -------------------------------------------------------- ======================================================== Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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Daniel Díaz
|
6aa69043d9 |
selftests/intel_pstate: Fix build rule for x86
Ensure that ARCH is defined and that this only builds for x86 architectures. It is possible to build from the root of the Linux tree, which will define ARCH, or to run make from the selftests/ directory itself, which has no provision for defining ARCH, so this change is to use the current definition (if any), or to check uname -m if undefined. Signed-off-by: Daniel Díaz <daniel.diaz@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> |
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Greg Kroah-Hartman
|
b24413180f |
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license 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 binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the 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 cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base 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 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately 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 license identifiers 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 the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version 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 correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Daniel Díaz
|
67b2e30eb7 |
selftests: intel_pstate: build only on x86
These tests are only for x86, so don't try to build or run them on other architectures. Signed-off-by: Daniel Díaz <daniel.diaz@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> |
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SeongJae Park
|
dc816e5d84 |
selftest/intel_pstate/aperf: Use LDLIBS instead of LDFLAGS
Build of aperf fails as below: ``` gcc -Wall -D_GNU_SOURCE -lm aperf.c -o /tools/testing/selftests/intel_pstate/aperf /tmp/ccKf3GF6.o: In function `main': aperf.c:(.text+0x278): undefined reference to `sqrt' collect2: error: ld returned 1 exit status ``` The faulure occurs because -lm was defined as LDFLAGS and implicit rule of make places LDFLAGS before source file. This commit fixes the problem by using LDLIBS instead of LDFLAGS. Signed-off-by: SeongJae Park <sj38.park@gmail.com> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> |
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Stafford Horne
|
29fa1d436e |
selftests/intel_pstate: Update makefile to match new style
Recent changes from Bamvor (
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Prarit Bhargava
|
ed2d26d7cb |
tools, testing, add test for intel_pstate driver
This test used the cpupower utility to set the cpu frequency from the maximum turbo value to the minimum supported value in steps of 100 MHz. The results are displayed in a table which indicate the "Target" state, or the requested frequency in MHz, the Actual frequency, as read from /proc/cpuinfo, the difference between the Target and Actual frequencies, and the value of MSR 0x199 (MSR_IA32_PERF_CTL) which indicates what pstate the cpu is in, and the value of /sys/devices/system/cpu/intel_pstate/max_perf_pct X maximum turbo state Cc: Shuah Khan <shuahkh@osg.samsung.com> Cc: linux-api@vger.kernel.org Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> |