Changes in Makefile

7f7f6f7a - Makefile: remove redundant tool coverage variables

Mon, 06 May 2024 13:35:43 +0000

Makefile: remove redundant tool coverage variablesNow Kbuild provides reasonable defaults for objtool, sanitizers, andprofilers.Remove redundant variables.Note:This commit changes the coverage for some objects: - include arch/mips/vdso/vdso-image.o into UBSAN, GCOV, KCOV - include arch/sparc/vdso/vdso-image-*.o into UBSAN - include arch/sparc/vdso/vma.o into UBSAN - include arch/x86/entry/vdso/extable.o into KASAN, KCSAN, UBSAN, GCOV, KCOV - include arch/x86/entry/vdso/vdso-image-*.o into KASAN, KCSAN, UBSAN, GCOV, KCOV - include arch/x86/entry/vdso/vdso32-setup.o into KASAN, KCSAN, UBSAN, GCOV, KCOV - include arch/x86/entry/vdso/vma.o into GCOV, KCOV - include arch/x86/um/vdso/vma.o into KASAN, GCOV, KCOVI believe these are positive effects because all of them are kernelspace objects.Signed-off-by: Masahiro Yamada Reviewed-by: Kees Cook Tested-by: Roberto Sassu List of files: /linux-6.15/arch/parisc/boot/compressed/Makefile

53e7b5df - arch: decompressor: remove useless vmlinux.bin.all-y

Sun, 09 Jan 2022 18:15:28 +0000

arch: decompressor: remove useless vmlinux.bin.all-yPresumably, arch/{parisc,s390,sh}/boot/compressed/Makefile copiedarch/x86/boot/compressed/Makefile, but vmlinux.bin.all-y is uselesshere because it is the same as $(obj)/vmlinux.bin.Signed-off-by: Masahiro Yamada Reviewed-by: Nicolas Schier List of files: /linux-6.15/arch/parisc/boot/compressed/Makefile

7ce7e984 - kbuild: rename cmd_{bzip2,lzma,lzo,lz4,xzkern,zstd22}

Sun, 09 Jan 2022 18:15:27 +0000

kbuild: rename cmd_{bzip2,lzma,lzo,lz4,xzkern,zstd22}GZIP-compressed files end with 4 byte data that represents the sizeof the original input. The decompressors (the self-extracting kernel)exploit it to know the vmlinux size beforehand. To mimic the GZIP'strailer, Kbuild provides cmd_{bzip2,lzma,lzo,lz4,xzkern,zstd22}.Unfortunately these macros are used everywhere despite the appendedsize data is only useful for the decompressors.There is no guarantee that such hand-crafted trailers are safely ignored.In fact, the kernel refuses compressed initramdfs with the garbage data.That is why usr/Makefile overrides size_append to make it no-op.To limit the use of such broken compressed files, this commit renamesthe existing macros as follows: cmd_bzip2 --> cmd_bzip2_with_size cmd_lzma --> cmd_lzma_with_size cmd_lzo --> cmd_lzo_with_size cmd_lz4 --> cmd_lz4_with_size cmd_xzkern --> cmd_xzkern_with_size cmd_zstd22 --> cmd_zstd22_with_sizeTo keep the decompressors working, I updated the following Makefilesaccordingly: arch/arm/boot/compressed/Makefile arch/h8300/boot/compressed/Makefile arch/mips/boot/compressed/Makefile arch/parisc/boot/compressed/Makefile arch/s390/boot/compressed/Makefile arch/sh/boot/compressed/Makefile arch/x86/boot/compressed/MakefileI reused the current macro names for the normal usecases; they producethe compressed data in the proper format.I did not touch the following: arch/arc/boot/Makefile arch/arm64/boot/Makefile arch/csky/boot/Makefile arch/mips/boot/Makefile arch/riscv/boot/Makefile arch/sh/boot/Makefile kernel/MakefileThis means those Makefiles will stop appending the size data.I dropped the 'override size_append' hack from usr/Makefile.Signed-off-by: Masahiro Yamada Reviewed-by: Nicolas Schier List of files: /linux-6.15/arch/parisc/boot/compressed/Makefile

3cbadd20 - parisc: decompressor: do not copy source files while building

Mon, 13 Dec 2021 03:09:15 +0000

parisc: decompressor: do not copy source files while buildingAs commit 7ae4a78daacf ("ARM: 8969/1: decompressor: simplify libfdtbuilds") stated, copying source files during the build time may notend up with as clean code as expected.Do similar for parisc to clean up the Makefile.Signed-off-by: Masahiro Yamada Acked-by: Helge Deller Signed-off-by: Helge Deller List of files: /linux-6.15/arch/parisc/boot/compressed/Makefile

6f21e734 - parisc: decompressor: clean up Makefile

Sat, 30 Oct 2021 17:57:21 +0000

parisc: decompressor: clean up MakefileDo not list the same objects in 'OBJECTS' and 'targets'.Instead, add $(OBJECTS) to 'targets'.Signed-off-by: Masahiro Yamada Signed-off-by: Helge Deller List of files: /linux-6.15/arch/parisc/boot/compressed/Makefile

07578f16 - parisc: decompressor: remove repeated depenency of misc.o

Sat, 30 Oct 2021 17:57:20 +0000

parisc: decompressor: remove repeated depenency of misc.oThe same dependency $(obj)/misc.o: $(obj)/sizes.h... appears twice, at line 29 and line 55 in this Makefile.Remove the second one.Signed-off-by: Masahiro Yamada Signed-off-by: Helge Deller List of files: /linux-6.15/arch/parisc/boot/compressed/Makefile

3da6379a - parisc: Add missing FORCE prerequisite in Makefile

Sun, 05 Sep 2021 09:50:56 +0000

parisc: Add missing FORCE prerequisite in MakefileSigned-off-by: Helge Deller List of files: /linux-6.15/arch/parisc/boot/compressed/Makefile

3fd84a4f - parisc: use -fno-strict-aliasing for decompressor

Fri, 08 May 2020 09:35:43 +0000

parisc: use -fno-strict-aliasing for decompressorAn experimental patch series of mine reworks how warnings are processedin Kbuild. A side effect is a new warning about a harmless aliasingrule violation in an inline function:In file included frominclude/linux/rhashtable-types.h:15:0, from include/linux/ipc.h:7, from include/uapi/linux/sem.h:5, from include/linux/sem.h:5, from include/linux/sched.h:15, from include/linux/uaccess.h:6, from arch/parisc/boot/compressed/misc.c:7:include/linux/workqueue.h: In function 'work_static':include/linux/workqueue.h:212:2: warning: dereferencingtype-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] return *work_data_bits(work) & WORK_STRUCT_STATIC;Make the decompressor use -fno-strict-aliasing like the rest ofthe kernel for consistency, and to ensure this warning never makesit into a release.Reported-by: kbuild test robot Signed-off-by: Arnd Bergmann Signed-off-by: Helge Deller List of files: /linux-6.15/arch/parisc/boot/compressed/Makefile

f2c5ed0d - parisc: Add archclean Makefile target

Thu, 01 Aug 2019 11:47:03 +0000

parisc: Add archclean Makefile targetApparently we don't have an archclean target in ourarch/parisc/Makefile, so files in there never get cleaned out by makemrproper. This, in turn means that the sizes.h file inarch/parisc/boot/compressed never gets removed and worse, when youtransition to an O=build/parisc[64] build model it overrides thegenerated file. The upshot being my bzImage was building with a SZ_endthat was too small.I fixed it by making mrproper clean everything.Signed-off-by: James Bottomley Cc: stable@vger.kernel.org # v4.20+Signed-off-by: Helge Deller List of files: /linux-6.15/arch/parisc/boot/compressed/Makefile

e50beea8 - parisc: Strip debug info from kernel before creating compressed vmlinuz

Thu, 01 Aug 2019 11:42:18 +0000

parisc: Strip debug info from kernel before creating compressed vmlinuzSame as on x86-64, strip the .comment, .note and debug sections from theLinux kernel before creating the compressed image for the boot loader.Reported-by: James Bottomley Reported-by: Sven Schnelle Cc: stable@vger.kernel.org # v4.20+Signed-off-by: Helge Deller List of files: /linux-6.15/arch/parisc/boot/compressed/Makefile

ec8f24b7 - treewide: Add SPDX license identifier - Makefile/Kconfig

Sun, 19 May 2019 12:07:45 +0000

treewide: Add SPDX license identifier - Makefile/KconfigAdd SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any formThese files fall under the project license, GPL v2 only. The resulting SPDXlicense identifier is: GPL-2.0-onlySigned-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/arch/parisc/boot/compressed/Makefile

34c201ae - parisc: Include compressed vmlinux file in vmlinuz boot kernel

Mon, 15 Oct 2018 20:14:01 +0000

parisc: Include compressed vmlinux file in vmlinuz boot kernelChange the parisc vmlinuz boot code to include and process the realcompressed vmlinux.gz ELF file instead of a compressed memory dump.This brings parisc in sync on how it's done on x86_64.The benefit of this change is that, e.g. for debugging purposes, one canthen extract the vmlinux file out of the vmlinuz which was booted whichwasn't possible before. This can be archieved with the existingscripts/extract-vmlinux script, which just needs a small tweak to preferto extract a compressed file before trying the existing given binary.The downside of this approach is that due to the extra round ofdecompression/ELF processing we need more physical memory installed tobe able to boot a kernel.Signed-off-by: Helge Deller List of files: /linux-6.15/arch/parisc/boot/compressed/Makefile

8c031ba6 - parisc: Unbreak bootloader due to gcc-7 optimizations

Fri, 22 Sep 2017 19:57:11 +0000

parisc: Unbreak bootloader due to gcc-7 optimizationsgcc-7 optimizes the byte-wise accesses of get_unaligned_le32() intoword-wise accesses if the 32-bit integer output_len is declared asexternal. This panics then the bootloader since we don't have theunaligned access fault trap handler installed during boot time.Avoid this optimization by declaring output_len as byte-aligned and thusunbreak the bootloader code.Additionally, compile the boot code optimized for size.Signed-off-by: Helge Deller List of files: /linux-6.15/arch/parisc/boot/compressed/Makefile

2f3c7b81 - parisc: Add core code for self-extracting kernel

Sun, 20 Aug 2017 08:52:22 +0000

parisc: Add core code for self-extracting kernelSigned-off-by: Helge Deller List of files: /linux-6.15/arch/parisc/boot/compressed/Makefile