Changes in Makefile

b16838c6 - kbuild: trace functions in subdirectories of lib/

Tue, 07 Jul 2020 09:21:17 +0000

kbuild: trace functions in subdirectories of lib/ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE)exists here in sub-directories of lib/ to keep the behavior ofcommit 2464a609ded0 ("ftrace: do not trace library functions").Since that commit, not only the objects in lib/ but also the ones inthe sub-directories are excluded from ftrace (although the commitdescription did not explicitly mention this).However, most of library functions in sub-directories are not so hot.Re-add them to ftrace.Going forward, only the objects right under lib/ will be excluded.Cc: Ingo Molnar Signed-off-by: Masahiro Yamada Acked-by: Steven Rostedt (VMware) List of files: /linux-6.15/lib/842/Makefile

15d5761a - kbuild: introduce ccflags-remove-y and asflags-remove-y

Tue, 07 Jul 2020 09:21:16 +0000

kbuild: introduce ccflags-remove-y and asflags-remove-yCFLAGS_REMOVE_.o filters out flags when compiling a particularobject, but there is no convenient way to do that for every object ina directory.Add ccflags-remove-y and asflags-remove-y to make it easily.Use ccflags-remove-y to clean up some Makefiles.The add/remove order works as follows: [1] KBUILD_CFLAGS specifies compiler flags used globally [2] ccflags-y adds compiler flags for all objects in the current Makefile [3] ccflags-remove-y removes compiler flags for all objects in the current Makefile (New feature) [4] CFLAGS_ adds compiler flags per file. [5] CFLAGS_REMOVE_ removes compiler flags per file.Having [3] before [4] allows us to remove flags from most (but not all)objects in the current Makefile.For example, kernel/trace/Makefile removes $(CC_FLAGS_FTRACE)from all objects in the directory, then adds it back totrace_selftest_dynamic.o and CFLAGS_trace_kprobe_selftest.oThe same applies to lib/livepatch/Makefile.Please note ccflags-remove-y has no effect to the sub-directories.In contrast, the previous notation got rid of compiler flags also fromall the sub-directories.The following are not affected because they have no sub-directories: arch/arm/boot/compressed/ arch/powerpc/xmon/ arch/sh/ kernel/trace/However, lib/ has several sub-directories.To keep the behavior, I added ccflags-remove-y to all Makefilesin subdirectories of lib/, except the following: lib/vdso/Makefile - Kbuild does not descend into this Makefile lib/raid/test/Makefile - This is not used for the kernel buildI think commit 2464a609ded0 ("ftrace: do not trace library functions")excluded too much. In the next commit, I will remove ccflags-remove-yfrom the sub-directories of lib/.Suggested-by: Sami Tolvanen Signed-off-by: Masahiro Yamada Acked-by: Steven Rostedt (VMware) Acked-by: Michael Ellerman (powerpc)Acked-by: Brendan Higgins (KUnit)Tested-by: Anders Roxell List of files: /linux-6.15/lib/842/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/lib/842/Makefile

2da572c9 - lib: add software 842 compression/decompression

Thu, 07 May 2015 17:49:14 +0000

lib: add software 842 compression/decompressionAdd 842-format software compression and decompression functions.Update the MAINTAINERS 842 section to include the new files.The 842 compression function can compress any input data into the 842compression format. The 842 decompression function can decompress anystandard-format 842 compressed data - specifically, either a compresseddata buffer created by the 842 software compression function, or acompressed data buffer created by the 842 hardware compressor (locatedin PowerPC coprocessors).The 842 compressed data format is explained in the header comments.This is used in a later patch to provide a full software 842 compressionand decompression crypto interface.Signed-off-by: Dan Streetman Signed-off-by: Herbert Xu List of files: /linux-6.15/lib/842/Makefile