Changes in Makefile

0847d167 - xtensa: enable ARCH_HAS_GCOV_PROFILE_ALL

Thu, 14 Jul 2022 04:20:58 +0000

xtensa: enable ARCH_HAS_GCOV_PROFILE_ALLSelect ARCH_HAS_GCOV_PROFILE_ALL and set GCOV_PROFILE = n insidearch/xtensa/boot/lib.Signed-off-by: Max Filippov List of files: /linux-6.15/arch/xtensa/boot/lib/Makefile

c49731a0 - xtensa: enable KCOV support

Thu, 14 Jul 2022 03:14:25 +0000

xtensa: enable KCOV supportSelect ARCH_HAS_KCOV and set KCOV_INSTRUMENT = n insidearch/xtensa/boot/lib.Signed-off-by: Max Filippov List of files: /linux-6.15/arch/xtensa/boot/lib/Makefile

725aea87 - xtensa: enable KCSAN

Sat, 05 Oct 2019 06:33:31 +0000

xtensa: enable KCSANPrefix arch-specific barrier macros with '__' to make use of instrumentedgeneric macros.Prefix arch-specific bitops with 'arch_' to make use of instrumentedgeneric functions.Provide stubs for 64-bit atomics when building with KCSAN.Disable KCSAN instrumentation in arch/xtensa/boot.Signed-off-by: Max Filippov Acked-by: Marco Elver List of files: /linux-6.15/arch/xtensa/boot/lib/Makefile

9cc342f6 - treewide: prefix header search paths with $(srctree)/

Mon, 13 May 2019 06:22:16 +0000

treewide: prefix header search paths with $(srctree)/Currently, the Kbuild core manipulates header search paths in a crazyway [1].To fix this mess, I want all Makefiles to add explicit $(srctree)/ tothe search paths in the srctree. Some Makefiles are already written inthat way, but not all. The goal of this work is to make the notationconsistent, and finally get rid of the gross hacks.Having whitespaces after -I does not matter since commit 48f6e3cf5bc6("kbuild: do not drop -I without parameter").[1]: https://patchwork.kernel.org/patch/9632347/Signed-off-by: Masahiro Yamada List of files: /linux-6.15/arch/xtensa/boot/lib/Makefile

c633544a - xtensa: add support for KASAN

Sun, 03 Dec 2017 21:28:52 +0000

xtensa: add support for KASANCover kernel addresses above 0x90000000 by the shadow map. EnableHAVE_ARCH_KASAN when MMU is enabled. Provide kasan_early_init that fillsshadow map with writable copies of kasan_zero_page. Callkasan_early_init right after mmu initialization in the setup_arch.Provide kasan_init that allocates proper shadow map pages from thememblock and puts these pages into the shadow map for addresses fromVMALLOC area to the end of KSEG. Call kasan_init right after memblockinitialization. Don't use KASAN for the boot code, MMU and KASANinitialization and page fault handler. Make kernel stack size 4 timeslarger when KASAN is enabled to avoid stack overflows.GCC 7.3, 8 or newer is required to build the xtensa kernel with KASAN.Signed-off-by: Max Filippov List of files: /linux-6.15/arch/xtensa/boot/lib/Makefile

40d1a07b - xtensa: enable stack protector

Mon, 27 Mar 2017 09:44:47 +0000

xtensa: enable stack protectorThe implementation is adopted from the ARM arch. GCC 7.3, 8 or newer isrequired for building the xtensa kernel with SSP.Signed-off-by: Max Filippov List of files: /linux-6.15/arch/xtensa/boot/lib/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/arch/xtensa/boot/lib/Makefile

478ba61a - xtensa: add static function tracer support

Fri, 24 May 2013 03:02:25 +0000

xtensa: add static function tracer supportSigned-off-by: Max Filippov Signed-off-by: Chris Zankel List of files: /linux-6.15/arch/xtensa/boot/lib/Makefile

3996eabb - xtensa: change to new flag variable

Fri, 14 Jan 2011 14:12:34 +0000

xtensa: change to new flag variableReplace EXTRA_CFLAGS with ccflags-y.Signed-off-by: matt mooney Acked-by: WANG Cong Signed-off-by: Michal Marek List of files: /linux-6.15/arch/xtensa/boot/lib/Makefile

4f3865fb - [PATCH] zlib_inflate: Upgrade library code to a recent version

Thu, 22 Jun 2006 21:47:34 +0000

[PATCH] zlib_inflate: Upgrade library code to a recent versionUpgrade the zlib_inflate implementation in the kernel from a patchedversion 1.1.3/4 to a patched 1.2.3.The code in the kernel is about seven years old and I noticed that theexternal zlib library's inflate performance was significantly faster (~50%)than the code in the kernel on ARM (and faster again on x86_32).For comparison the newer deflate code is 20% slower on ARM and 50% sloweron x86_32 but gives an approx 1% compression ratio improvement. I don'tconsider this to be an improvement for kernel use so have no plans tochange the zlib_deflate code.Various changes have been made to the zlib code in the kernel, the mostsignificant being the extra functions/flush option used by ppp_deflate.This update reimplements the features PPP needs to ensure it continues towork.This code has been tested on ARM under both JFFS2 (with zlib compressionenabled) and ppp_deflate and on x86_32. JFFS2 sees an approx. 10% realworld file read speed improvement.This patch also removes ZLIB_VERSION as it no longer has a correct value.We don't need version checks anyway as the kernel's module handling willtake care of that for us. This removal is also more in keeping with thezlib author's wishes (http://www.zlib.net/zlib_faq.html#faq24) and I'veadded something to the zlib.h header to note its a modified version.Signed-off-by: Richard Purdie Acked-by: Joern Engel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/xtensa/boot/lib/Makefile

e7d163f7 - [PATCH] xtensa: Removed local copy of zlib and fixed O= support

Thu, 30 Jun 2005 09:58:59 +0000

[PATCH] xtensa: Removed local copy of zlib and fixed O= supportRemoved an unnecessary local copy of zlib (sorry for the add'l traffic).Fixed 'O=' support (thanks to Jan Dittmer for pointing it out). Some minorclean-ups in the make files.Signed-off-by: Chris Zankel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/xtensa/boot/lib/Makefile

4bedea94 - [PATCH] xtensa: Architecture support for Tensilica Xtensa Part 2

Fri, 24 Jun 2005 05:01:12 +0000

[PATCH] xtensa: Architecture support for Tensilica Xtensa Part 2The attached patches provides part 2 of an architecture implementation for theTensilica Xtensa CPU series.Signed-off-by: Chris Zankel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/xtensa/boot/lib/Makefile