Changes in Makefile

2947a456 - treewide: update LLVM Bugzilla links

Tue, 09 Jan 2024 22:16:31 +0000

treewide: update LLVM Bugzilla linksLLVM moved their issue tracker from their own Bugzilla instance to GitHubissues. While all of the links are still valid, they may not necessarilyshow the most up to date information around the issues, as all updateswill occur on GitHub, not Bugzilla.Another complication is that the Bugzilla issue number is not always thesame as the GitHub issue number. Thankfully, LLVM maintains this mappingthrough two shortlinks: https://llvm.org/bz -> https://bugs.llvm.org/show_bug.cgi?id= https://llvm.org/pr -> https://github.com/llvm/llvm-project/issues/Switch all "https://bugs.llvm.org/show_bug.cgi?id=" links to the"https://llvm.org/pr" shortlink so that the links show the most up todate information. Each migrated issue links back to the Bugzilla entry,so there should be no loss of fidelity of information here.Link: https://lkml.kernel.org/r/20240109-update-llvm-links-v1-3-eb09b59db071@kernel.orgSigned-off-by: Nathan Chancellor Reviewed-by: Kees Cook Acked-by: Fangrui Song Cc: Alexei Starovoitov Cc: Andrii Nakryiko Cc: Daniel Borkmann Cc: Mykola Lysenko Signed-off-by: Andrew Morton List of files: /linux-6.15/arch/x86/power/Makefile

d2dcd3e3 - x86, cpu: disable LTO for cpu.c

Wed, 16 Sep 2020 19:57:56 +0000

x86, cpu: disable LTO for cpu.cClang incorrectly inlines functions with differing stack protectorattributes, which breaks __restore_processor_state() that relies onstack protector being disabled. This change disables LTO for cpu.cto work aroung the bug.Link: https://bugs.llvm.org/show_bug.cgi?id=47479Suggested-by: Nick Desaulniers Signed-off-by: Sami Tolvanen List of files: /linux-6.15/arch/x86/power/Makefile

9077c016 - x86/power: Support objtool validation in hibernate_asm_64.S

Thu, 21 Jan 2021 21:29:36 +0000

x86/power: Support objtool validation in hibernate_asm_64.SThe OBJECT_FILES_NON_STANDARD annotation is used to tell objtool toignore a file. File-level ignores won't work when validating vmlinux.o.Instead, convert restore_image() and core_restore_code() to be ELFfunctions. Their code is conventional enough for objtool to be able tounderstand them.Cc: "Rafael J. Wysocki" Cc: Pavel Machek Signed-off-by: Josh Poimboeuf Link: https://lore.kernel.org/r/974f8ceb5385e470f72e93974c70ab5c894bb0dc.1611263462.git.jpoimboe@redhat.com List of files: /linux-6.15/arch/x86/power/Makefile

893ab004 - kbuild: remove cc-option test of -fno-stack-protector

Fri, 26 Jun 2020 18:59:12 +0000

kbuild: remove cc-option test of -fno-stack-protectorSome Makefiles already pass -fno-stack-protector unconditionally.For example, arch/arm64/kernel/vdso/Makefile, arch/x86/xen/Makefile.No problem report so far about hard-coding this option. So, we canassume all supported compilers know -fno-stack-protector.GCC 4.8 and Clang support this option (https://godbolt.org/z/_HDGzN)Get rid of cc-option from -fno-stack-protector.Remove CONFIG_CC_HAS_STACKPROTECTOR_NONE, which is always 'y'.Note:arch/mips/vdso/Makefile adds -fno-stack-protector twice, firstunconditionally, and second conditionally. I removed the second one.Signed-off-by: Masahiro Yamada Reviewed-by: Kees Cook Acked-by: Ard Biesheuvel Reviewed-by: Nick Desaulniers List of files: /linux-6.15/arch/x86/power/Makefile

25862a04 - x86, hibernate: Extract the common code of 64/32 bit system

Fri, 21 Sep 2018 06:26:58 +0000

x86, hibernate: Extract the common code of 64/32 bit systemReduce the hibernation code duplication between x86-32 and x86-64by extracting the common code into hibernate.c.Currently only pfn_is_nosave() is the activated commonfunction in hibernate.cNo functional change.Acked-by: Pavel Machek Signed-off-by: Zhimin Gu Signed-off-by: Chen Yu Acked-by: Thomas Gleixner Signed-off-by: Rafael J. Wysocki List of files: /linux-6.15/arch/x86/power/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/x86/power/Makefile

c207aee4 - objtool, x86: Add several functions and files to the objtool whitelist

Wed, 28 Jun 2017 15:11:06 +0000

objtool, x86: Add several functions and files to the objtool whitelistIn preparation for an objtool rewrite which will have broader checks,whitelist functions and files which cause problems because they dounusual things with the stack.These whitelists serve as a TODO list for which functions and filesdon't yet have undwarf unwinder coverage. Eventually most of thewhitelists can be removed in favor of manual CFI hint annotations orobjtool improvements.Signed-off-by: Josh Poimboeuf Cc: Andy Lutomirski Cc: Jiri Slaby Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: live-patching@vger.kernel.orgLink: http://lkml.kernel.org/r/7f934a5d707a574bda33ea282e9478e627fb1829.1498659915.git.jpoimboe@redhat.comSigned-off-by: Ingo Molnar List of files: /linux-6.15/arch/x86/power/Makefile

00024be9 - x86: Fix resume from suspend when CONFIG_CC_STACKPROTECTOR

Wed, 08 Jul 2009 11:20:13 +0000

x86: Fix resume from suspend when CONFIG_CC_STACKPROTECTORPatch 08687aec71bc9134fe336e561f6did877bacf74fc0a (x86: unifypower/cpu_(32|64).c) renamed cpu_32.c to cpu.c, but did not updatethe special compilation flags for the file for the new name.This patch fixes the compilation flags, and therefore fixes resumefrom suspend on my Acer Aspire One.[rjw: The regression from 2.6.30 fixed by this patch is tracked as http://bugzilla.kernel.org/show_bug.cgi?id=13661]Signed-off-by: Peter Chubb Signed-off-by: Rafael J. Wysocki List of files: /linux-6.15/arch/x86/power/Makefile

08687aec - x86: unify power/cpu_(32|64).c

Mon, 27 Apr 2009 22:27:22 +0000

x86: unify power/cpu_(32|64).cThis is the last unification step. Here we do remove one of the filesand rename the left one as cpu.c, as both are now the same.Also update power/Makefile, telling it to build cpu.o, instead ofcpu_(32|64).oSigned-off-by: Sergio Luis Signed-off-by: Lauro Salmito Signed-off-by: Rafael J. Wysocki List of files: /linux-6.15/arch/x86/power/Makefile

9b7b89ef - x86: disable stack-protector for __restore_processor_state()

Mon, 30 Mar 2009 21:03:01 +0000

x86: disable stack-protector for __restore_processor_state()The __restore_processor_state() fn restores %gs on resume from S3. Assuch, it cannot be protected by the stack-protector guard since %gs willnot be correct on function entry.There are only a few other fns in this file and it should not negativelyimpact kernel security that they will also have the stack-protectorguard removed (and so it's not worth moving them to another file).Without this change, S3 resume on a kernel built withCONFIG_CC_STACKPROTECTOR_ALL=y will fail.Signed-off-by: Joseph Cihula Tested-by: Chris Wright Cc: Arjan van de Ven Cc: Tejun Heo LKML-Reference: <49D13385.5060900@intel.com>Signed-off-by: Ingo Molnar List of files: /linux-6.15/arch/x86/power/Makefile

ef8b03fa - x86 PM: consolidate suspend and hibernation code

Sat, 09 Feb 2008 22:24:09 +0000

x86 PM: consolidate suspend and hibernation codeMove the hibernation-specific code from arch/x86/power/suspend_64.cto a separate file (hibernate_64.c) and the CPU-handling code tocpu_64.c (in line with the corresponding 32-bit code).Simplify arch/x86/power/Makefile .Signed-off-by: Rafael J. Wysocki Acked-by: Pavel Machek Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner List of files: /linux-6.15/arch/x86/power/Makefile

c5759124 - x86 PM: rename 32-bit files in arch/x86/power

Sat, 09 Feb 2008 22:24:09 +0000

x86 PM: rename 32-bit files in arch/x86/powerRename cpu.c, suspend.c and swsusp.S in arch/x86/power to cpu_32.c,hibernate_32.c and hibernate_asm_32.S, respectively, and update thepurpose and copyright information in these files.Update the Makefile in arch/x86/power to reflect the above changes.Signed-off-by: Rafael J. Wysocki Acked-by: Pavel Machek Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner List of files: /linux-6.15/arch/x86/power/Makefile

cf7700fe - x86 PM: move 64-bit hibernation files to arch/x86/power

Sat, 09 Feb 2008 22:24:09 +0000

x86 PM: move 64-bit hibernation files to arch/x86/powerMove arch/x86/kernel/suspend_64.c to arch/x86/power .Move arch/x86/kernel/suspend_asm_64.S to arch/x86/poweras hibernate_asm_64.S .Update purpose and copyright information inarch/x86/power/suspend_64.c andarch/x86/power/hibernate_asm_64.S .Update the Makefiles in arch/x86, arch/x86/kernel andarch/x86/power to reflect the above changes.Signed-off-by: Rafael J. Wysocki Acked-by: Pavel Machek Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner List of files: /linux-6.15/arch/x86/power/Makefile

4b60eb83 - i386: move power

Thu, 11 Oct 2007 09:16:34 +0000

i386: move powerSigned-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar List of files: /linux-6.15/arch/x86/power/Makefile