linux/arch/microblaze/Makefile

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License cleanup: add SPDX GPL-2.0 license identifier to files with no license Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license 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 binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the 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 cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base 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 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately 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 license identifiers 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 the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version 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 correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-01 17:07:57 +03:00
# SPDX-License-Identifier: GPL-2.0
KBUILD_DEFCONFIG := mmu_defconfig
ifeq ($(CONFIG_MMU),y)
UTS_SYSNAME = -DUTS_SYSNAME=\"Linux\"
else
UTS_SYSNAME = -DUTS_SYSNAME=\"uClinux\"
endif
# What CPU vesion are we building for, and crack it open
# as major.minor.rev
CPU_VER := $(shell echo $(CONFIG_XILINX_MICROBLAZE0_HW_VER))
CPU_MAJOR := $(shell echo $(CPU_VER) | cut -d '.' -f 1)
CPU_MINOR := $(shell echo $(CPU_VER) | cut -d '.' -f 2)
CPU_REV := $(shell echo $(CPU_VER) | cut -d '.' -f 3)
export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV
# Use cpu-related CONFIG_ vars to set compile options.
# The various CONFIG_XILINX cpu features options are integers 0/1/2...
# rather than bools y/n
# Work out HW multipler support. This is tricky.
# 1. Spartan2 has no HW multipliers.
# 2. MicroBlaze v3.x always uses them, except in Spartan 2
# 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings
ifeq (,$(findstring spartan2,$(CONFIG_XILINX_MICROBLAZE0_FAMILY)))
ifeq ($(CPU_MAJOR),3)
CPUFLAGS-1 += -mno-xl-soft-mul
else
# USE_HW_MUL can be 0, 1, or 2, defining a hierarchy of HW Mul support.
CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul
endif
endif
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
ifdef CONFIG_CPU_BIG_ENDIAN
KBUILD_CFLAGS += -mbig-endian
KBUILD_AFLAGS += -mbig-endian
KBUILD_LDFLAGS += -EB
else
KBUILD_CFLAGS += -mlittle-endian
KBUILD_AFLAGS += -mlittle-endian
KBUILD_LDFLAGS += -EL
endif
CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
# r31 holds current when in kernel mode
KBUILD_CFLAGS += -ffixed-r31 $(CPUFLAGS-y) $(CPUFLAGS-1) $(CPUFLAGS-2)
head-y := arch/microblaze/kernel/head.o
libs-y += arch/microblaze/lib/
core-y += arch/microblaze/kernel/
core-y += arch/microblaze/mm/
core-$(CONFIG_PCI) += arch/microblaze/pci/
drivers-$(CONFIG_OPROFILE) += arch/microblaze/oprofile/
boot := arch/microblaze/boot
# Are we making a simpleImage.<boardname> target? If so, crack out the boardname
DTB:=$(subst simpleImage.,,$(filter simpleImage.%, $(MAKECMDGOALS)))
kbuild: consolidate Devicetree dtb build rules There is nothing arch specific about building dtb files other than their location under /arch/*/boot/dts/. Keeping each arch aligned is a pain. The dependencies and supported targets are all slightly different. Also, a cross-compiler for each arch is needed, but really the host compiler preprocessor is perfectly fine for building dtbs. Move the build rules to a common location and remove the arch specific ones. This is done in a single step to avoid warnings about overriding rules. The build dependencies had been a mixture of 'scripts' and/or 'prepare'. These pull in several dependencies some of which need a target compiler (specifically devicetable-offsets.h) and aren't needed to build dtbs. All that is really needed is dtc, so adjust the dependencies to only be dtc. This change enables support 'dtbs_install' on some arches which were missing the target. Acked-by: Will Deacon <will.deacon@arm.com> Acked-by: Paul Burton <paul.burton@mips.com> Acked-by: Ley Foon Tan <ley.foon.tan@intel.com> Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Michal Marek <michal.lkml@markovi.net> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Michal Simek <monstr@monstr.eu> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Chris Zankel <chris@zankel.net> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: linux-kbuild@vger.kernel.org Cc: linux-snps-arc@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: uclinux-h8-devel@lists.sourceforge.jp Cc: linux-mips@linux-mips.org Cc: nios2-dev@lists.rocketboards.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-xtensa@linux-xtensa.org Signed-off-by: Rob Herring <robh@kernel.org>
2018-01-11 00:19:37 +03:00
core-y += $(boot)/dts/
# defines filename extension depending memory management type
ifeq ($(CONFIG_MMU),)
MMU := -nommu
endif
export MMU DTB
all: linux.bin
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
archheaders:
$(Q)$(MAKE) $(build)=arch/microblaze/kernel/syscalls all
PHONY += linux.bin linux.bin.gz linux.bin.ub
linux.bin linux.bin.gz linux.bin.ub: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
@echo 'Kernel: $(boot)/$@ is ready' ' (#'`cat .version`')'
PHONY += simpleImage.$(DTB)
simpleImage.$(DTB): vmlinux
microblaze: fix multiple bugs in arch/microblaze/boot/Makefile This commit fixes some build issues. The first issue is the breakage of linux.bin.ub target since commit ece97f3a5fb5 ("microblaze: Fix simpleImage format generation") because the addition of UIMAGE_{IN,OUT} affected it. make ARCH=microblaze CROSS_COMPILE=microblaze-linux- linux.bin.ub [ snip ] OBJCOPY arch/microblaze/boot/linux.bin UIMAGE arch/microblaze/boot/linux.bin.ub.ub /usr/bin/mkimage: Can't open arch/microblaze/boot/linux.bin.ub: No such file or directory make[1]: *** [arch/microblaze/boot/Makefile;14: arch/microblaze/boot/linux.bin.ub] Error 1 make: *** [arch/microblaze/Makefile;83: linux.bin.ub] Error 2 The second issue is the use of the "if_changed" multiple times for the same target. As commit 92a4728608a8 ("x86/boot: Fix if_changed build flip/flop bug") pointed out, this never works properly. Moreover, generating multiple images as a side-effect is confusing. Let's split the build recipe for each image. simpleImage.<dt>*.unstrip is just a copy of vmlinux. simpleImage.<dt> and simpleImage.<dt>.ub are created in the same way as linux.bin and linux.bin.ub, respectively. I kept simpleImage.* recipes independent of linux.bin.* ones to not change the behavior. Lastly, this commit fixes "make ARCH=microblaze clean". Previously, it only cleaned up the unstrip image. Now, all the simpleImage files are cleaned. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-12-07 14:33:54 +03:00
$(Q)$(MAKE) $(build)=$(boot) $(addprefix $(boot)/$@., ub unstrip strip)
@echo 'Kernel: $(boot)/$@ is ready' ' (#'`cat .version`')'
define archhelp
echo '* linux.bin - Create raw binary'
echo ' linux.bin.gz - Create compressed raw binary'
echo ' linux.bin.ub - Create U-Boot wrapped raw binary'
echo ' simpleImage.<dt> - Create the following images with <dt>.dtb linked in'
echo ' simpleImage.<dt> : raw image'
echo ' simpleImage.<dt>.ub : raw image with U-Boot header'
echo ' simpleImage.<dt>.unstrip: ELF (identical to vmlinux)'
echo ' simpleImage.<dt>.strip : stripped ELF'
echo ' Targets with <dt> embed a device tree blob inside the image'
echo ' These targets support board with firmware that does not'
echo ' support passing a device tree directly. Replace <dt> with the'
echo ' name of a dts file from the arch/microblaze/boot/dts/ directory'
echo ' (minus the .dts extension).'
endef
MRPROPER_FILES += $(boot)/simpleImage.*