Changes in Makefile

80870e6e - x86, objtool: Dont exclude arch/x86/realmode/

Thu, 06 May 2021 19:33:54 +0000

x86, objtool: Dont exclude arch/x86/realmode/Specifically, init.c uses jump_labels.Signed-off-by: Peter Zijlstra (Intel) Signed-off-by: Ingo Molnar Link: https://lore.kernel.org/r/20210506194157.516200011@infradead.org List of files: /linux-6.15/arch/x86/realmode/Makefile

40d04110 - x86, kcsan: Enable KCSAN for x86

Thu, 14 Nov 2019 18:03:03 +0000

x86, kcsan: Enable KCSAN for x86This patch enables KCSAN for x86, with updates to build rules to not useKCSAN for several incompatible compilation units.Signed-off-by: Marco Elver Acked-by: Paul E. McKenney Signed-off-by: Paul E. McKenney List of files: /linux-6.15/arch/x86/realmode/Makefile

c0dd6716 - objtool: Mark non-standard object files and directories

Mon, 29 Feb 2016 04:22:34 +0000

objtool: Mark non-standard object files and directoriesCode which runs outside the kernel's normal mode of operation often doesunusual things which can cause a static analysis tool like objtool toemit false positive warnings: - boot image - vdso image - relocation - realmode - efi - head - purgatory - modpostSet OBJECT_FILES_NON_STANDARD for their related files and directories,which will tell objtool to skip checking them. It's ok to skip thembecause they don't affect runtime stack traces.Also skip the following code which does the right thing with respect toframe pointers, but is too "special" to be validated by a tool: - entry - mcountAlso skip the test_nx module because it modifies its exception handlingtable at runtime, which objtool can't understand. Fortunately it'sjust a test module so it doesn't matter much.Currently objtool is the only user of OBJECT_FILES_NON_STANDARD, but itmight eventually be useful for other tools.Signed-off-by: Josh Poimboeuf Cc: Andrew Morton Cc: Andy Lutomirski Cc: Arnaldo Carvalho de Melo Cc: Bernd Petrovitsch Cc: Borislav Petkov Cc: Chris J Arges Cc: Jiri Slaby Cc: Linus Torvalds Cc: Michal Marek Cc: Namhyung Kim Cc: Pedro Alves Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: live-patching@vger.kernel.orgLink: http://lkml.kernel.org/r/366c080e3844e8a5b6a0327dc7e8c2b90ca3baeb.1456719558.git.jpoimboe@redhat.comSigned-off-by: Ingo Molnar List of files: /linux-6.15/arch/x86/realmode/Makefile

ef7f0d6a - x86_64: add KASan support

Fri, 13 Feb 2015 22:39:25 +0000

x86_64: add KASan supportThis patch adds arch specific code for kernel address sanitizer.16TB of virtual addressed used for shadow memory. It's located in range[ffffec0000000000 - fffffc0000000000] between vmemmap and %esp fixupstacks.At early stage we map whole shadow region with zero page. Latter, afterpages mapped to direct mapping address range we unmap zero pages fromcorresponding shadow (see kasan_map_shadow()) and allocate and map a realshadow memory reusing vmemmap_populate() function.Also replace __pa with __pa_nodebug before shadow initialized. __pa withCONFIG_DEBUG_VIRTUAL=y make external function call (__phys_addr)__phys_addr is instrumented, so __asan_load could be called before shadowarea initialized.Signed-off-by: Andrey Ryabinin Cc: Dmitry Vyukov Cc: Konstantin Serebryany Cc: Dmitry Chernenkov Signed-off-by: Andrey Konovalov Cc: Yuri Gribov Cc: Konstantin Khlebnikov Cc: Sasha Levin Cc: Christoph Lameter Cc: Joonsoo Kim Cc: Dave Hansen Cc: Andi Kleen Cc: Ingo Molnar Cc: Thomas Gleixner Cc: "H. Peter Anvin" Cc: Christoph Lameter Cc: Pekka Enberg Cc: David Rientjes Cc: Jim Davis Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/x86/realmode/Makefile

13712701 - x86, realmode: Move kernel/realmode.c to realmode/init.c

Wed, 16 May 2012 20:49:10 +0000

x86, realmode: Move kernel/realmode.c to realmode/init.cKeep all the realmode code together, including initialization (onlythe rm/ subdirectory is actually built as real-mode code, anyway.)Signed-off-by: H. Peter Anvin Cc: Jarkko Sakkinen List of files: /linux-6.15/arch/x86/realmode/Makefile

c5403aed - x86, realmode: build fix: remove duplicate build

Wed, 09 May 2012 20:25:06 +0000

x86, realmode: build fix: remove duplicate buildReal-mode binary was built twice. This patch fixesthe issue by making realmode.relocs as target forrealmode.bin.[ hpa: removed the direct dependency on realmode.relocs in arch/x86/realmode/Makefile ]Signed-off-by: Jarkko Sakkinen Link: http://lkml.kernel.org/r/1336595106-21135-1-git-send-email-jarkko.sakkinen@intel.comCc: Sam Ravnborg Cc: Michal Marek Signed-off-by: H. Peter Anvin List of files: /linux-6.15/arch/x86/realmode/Makefile

b3266bd6 - x86, realmode: realmode.bin infrastructure

Tue, 08 May 2012 18:22:25 +0000

x86, realmode: realmode.bin infrastructureCreate realmode.bin and realmode.relocs files. Piggypack them into relocatable object that will be includedinto .init.data section of the main kernel image.The first file includes binary image of the real-mode code.The latter file includes all relocations. The layout of thebinary image is specified in realmode.lds.S. The makefilegenerates pa_ prefixed symbols for each exported global.These are used in 32-bit code and in realmode header todefine symbols that need to be relocated.Signed-off-by: Jarkko Sakkinen Link: http://lkml.kernel.org/r/1336501366-28617-3-git-send-email-jarkko.sakkinen@intel.comOriginally-by: H. Peter Anvin Signed-off-by: H. Peter Anvin List of files: /linux-6.15/arch/x86/realmode/Makefile