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
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/* SPDX-License-Identifier: GPL-2.0 */
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2005-04-17 02:20:36 +04:00
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#ifndef __ASM_SH_ELF_H
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#define __ASM_SH_ELF_H
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2008-05-19 08:40:12 +04:00
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#include <linux/utsname.h>
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2006-09-27 13:22:53 +04:00
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#include <asm/auxvec.h>
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#include <asm/ptrace.h>
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#include <asm/user.h>
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2008-05-19 08:40:12 +04:00
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/* ELF header e_flags defines */
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#define EF_SH_PIC 0x100 /* -fpic */
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#define EF_SH_FDPIC 0x8000 /* -mfdpic */
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2007-11-20 09:14:31 +03:00
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/* SH (particularly SHcompact) relocation types */
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2005-04-17 02:20:36 +04:00
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#define R_SH_NONE 0
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#define R_SH_DIR32 1
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#define R_SH_REL32 2
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#define R_SH_DIR8WPN 3
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#define R_SH_IND12W 4
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#define R_SH_DIR8WPL 5
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#define R_SH_DIR8WPZ 6
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#define R_SH_DIR8BP 7
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#define R_SH_DIR8W 8
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#define R_SH_DIR8L 9
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#define R_SH_SWITCH16 25
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#define R_SH_SWITCH32 26
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#define R_SH_USES 27
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#define R_SH_COUNT 28
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#define R_SH_ALIGN 29
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#define R_SH_CODE 30
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#define R_SH_DATA 31
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#define R_SH_LABEL 32
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#define R_SH_SWITCH8 33
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#define R_SH_GNU_VTINHERIT 34
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#define R_SH_GNU_VTENTRY 35
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#define R_SH_TLS_GD_32 144
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#define R_SH_TLS_LD_32 145
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#define R_SH_TLS_LDO_32 146
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#define R_SH_TLS_IE_32 147
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#define R_SH_TLS_LE_32 148
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#define R_SH_TLS_DTPMOD32 149
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#define R_SH_TLS_DTPOFF32 150
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#define R_SH_TLS_TPOFF32 151
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#define R_SH_GOT32 160
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#define R_SH_PLT32 161
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#define R_SH_COPY 162
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#define R_SH_GLOB_DAT 163
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#define R_SH_JMP_SLOT 164
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#define R_SH_RELATIVE 165
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#define R_SH_GOTOFF 166
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#define R_SH_GOTPC 167
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2008-05-19 08:40:12 +04:00
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/* FDPIC relocs */
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2010-06-14 13:02:13 +04:00
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#define R_SH_GOT20 201
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#define R_SH_GOTOFF20 202
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#define R_SH_GOTFUNCDESC 203
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#define R_SH_GOTFUNCDESC20 204
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#define R_SH_GOTOFFFUNCDESC 205
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#define R_SH_GOTOFFFUNCDESC20 206
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#define R_SH_FUNCDESC 207
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#define R_SH_FUNCDESC_VALUE 208
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2008-05-19 08:40:12 +04:00
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2007-11-20 09:14:31 +03:00
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/* SHmedia relocs */
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#define R_SH_IMM_LOW16 246
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#define R_SH_IMM_LOW16_PCREL 247
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#define R_SH_IMM_MEDLOW16 248
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#define R_SH_IMM_MEDLOW16_PCREL 249
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2005-04-17 02:20:36 +04:00
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/* Keep this the last entry. */
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#define R_SH_NUM 256
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/*
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* ELF register definitions..
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*/
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typedef unsigned long elf_greg_t;
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#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
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typedef elf_greg_t elf_gregset_t[ELF_NGREG];
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typedef struct user_fpu_struct elf_fpregset_t;
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/*
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* These are used to set parameters in the core dumps.
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*/
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#define ELF_CLASS ELFCLASS32
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#ifdef __LITTLE_ENDIAN__
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#define ELF_DATA ELFDATA2LSB
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#else
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#define ELF_DATA ELFDATA2MSB
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#endif
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#define ELF_ARCH EM_SH
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2007-12-10 10:06:32 +03:00
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#ifdef __KERNEL__
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/*
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* This is used to ensure we don't load something for the wrong architecture.
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*/
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2008-05-19 08:40:12 +04:00
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#define elf_check_arch(x) ((x)->e_machine == EM_SH)
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#define elf_check_fdpic(x) ((x)->e_flags & EF_SH_FDPIC)
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#define elf_check_const_displacement(x) ((x)->e_flags & EF_SH_PIC)
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2007-12-10 10:06:32 +03:00
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2008-09-12 14:52:36 +04:00
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/*
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2008-09-21 14:04:55 +04:00
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* Enable dump using regset.
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* This covers all of general/DSP/FPU regs.
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2008-09-12 14:52:36 +04:00
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*/
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#define CORE_DUMP_USE_REGSET
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2008-05-19 08:40:12 +04:00
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#define ELF_FDPIC_CORE_EFLAGS EF_SH_FDPIC
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2006-11-20 08:30:26 +03:00
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#define ELF_EXEC_PAGESIZE PAGE_SIZE
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2005-04-17 02:20:36 +04:00
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/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
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use of this is to invoke "./ld.so someprog" to test out a new version of
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the loader. We need to make sure that it is out of the way of the program
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that it will "exec", and that there is sufficient room for the brk. */
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#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
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#define ELF_CORE_COPY_REGS(_dest,_regs) \
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memcpy((char *) &_dest, (char *) _regs, \
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sizeof(struct pt_regs));
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/* This yields a mask that user programs can use to figure out what
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instruction set this CPU supports. This could be done in user space,
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but it's not easy, and we've already done it here. */
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2006-09-27 13:22:53 +04:00
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#define ELF_HWCAP (boot_cpu_data.flags)
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2005-04-17 02:20:36 +04:00
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/* This yields a string that ld.so will use to load implementation
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specific libraries for optimization. This is more specific in
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intent than poking at uname or /proc/cpuinfo.
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For the moment, we have only optimizations for the Intel generations,
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but that could change... */
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2007-12-10 10:06:32 +03:00
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#define ELF_PLATFORM (utsname()->machine)
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2005-04-17 02:20:36 +04:00
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2007-11-20 09:14:31 +03:00
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#ifdef __SH5__
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#define ELF_PLAT_INIT(_r, load_addr) \
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do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
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_r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
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_r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
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_r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; _r->regs[15]=0; \
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_r->regs[16]=0; _r->regs[17]=0; _r->regs[18]=0; _r->regs[19]=0; \
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_r->regs[20]=0; _r->regs[21]=0; _r->regs[22]=0; _r->regs[23]=0; \
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_r->regs[24]=0; _r->regs[25]=0; _r->regs[26]=0; _r->regs[27]=0; \
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_r->regs[28]=0; _r->regs[29]=0; _r->regs[30]=0; _r->regs[31]=0; \
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_r->regs[32]=0; _r->regs[33]=0; _r->regs[34]=0; _r->regs[35]=0; \
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_r->regs[36]=0; _r->regs[37]=0; _r->regs[38]=0; _r->regs[39]=0; \
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_r->regs[40]=0; _r->regs[41]=0; _r->regs[42]=0; _r->regs[43]=0; \
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_r->regs[44]=0; _r->regs[45]=0; _r->regs[46]=0; _r->regs[47]=0; \
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_r->regs[48]=0; _r->regs[49]=0; _r->regs[50]=0; _r->regs[51]=0; \
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_r->regs[52]=0; _r->regs[53]=0; _r->regs[54]=0; _r->regs[55]=0; \
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_r->regs[56]=0; _r->regs[57]=0; _r->regs[58]=0; _r->regs[59]=0; \
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_r->regs[60]=0; _r->regs[61]=0; _r->regs[62]=0; \
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_r->tregs[0]=0; _r->tregs[1]=0; _r->tregs[2]=0; _r->tregs[3]=0; \
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_r->tregs[4]=0; _r->tregs[5]=0; _r->tregs[6]=0; _r->tregs[7]=0; \
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_r->sr = SR_FD | SR_MMU; } while (0)
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#else
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2005-04-17 02:20:36 +04:00
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#define ELF_PLAT_INIT(_r, load_addr) \
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do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
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_r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
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_r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
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_r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; \
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_r->sr = SR_FD; } while (0)
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2008-05-19 08:40:12 +04:00
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#define ELF_FDPIC_PLAT_INIT(_r, _exec_map_addr, _interp_map_addr, \
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_dynamic_addr) \
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do { \
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_r->regs[0] = 0; \
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_r->regs[1] = 0; \
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_r->regs[2] = 0; \
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_r->regs[3] = 0; \
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_r->regs[4] = 0; \
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_r->regs[5] = 0; \
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_r->regs[6] = 0; \
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_r->regs[7] = 0; \
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_r->regs[8] = _exec_map_addr; \
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_r->regs[9] = _interp_map_addr; \
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_r->regs[10] = _dynamic_addr; \
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_r->regs[11] = 0; \
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_r->regs[12] = 0; \
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_r->regs[13] = 0; \
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_r->regs[14] = 0; \
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_r->sr = SR_FD; \
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} while (0)
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2007-11-20 09:14:31 +03:00
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#endif
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2005-04-17 02:20:36 +04:00
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2012-10-05 04:12:20 +04:00
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#define SET_PERSONALITY(ex) \
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set_personality(PER_LINUX_32BIT | (current->personality & (~PER_MASK)))
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2008-10-20 06:37:58 +04:00
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2006-09-27 13:33:49 +04:00
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#ifdef CONFIG_VSYSCALL
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/* vDSO has arch_setup_additional_pages */
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#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
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struct linux_binprm;
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extern int arch_setup_additional_pages(struct linux_binprm *bprm,
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2008-12-25 15:38:35 +03:00
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int uses_interp);
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2006-09-27 13:33:49 +04:00
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extern unsigned int vdso_enabled;
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extern void __kernel_vsyscall;
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#define VDSO_BASE ((unsigned long)current->mm->context.vdso)
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#define VDSO_SYM(x) (VDSO_BASE + (unsigned long)(x))
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2007-12-10 09:50:28 +03:00
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#define VSYSCALL_AUX_ENT \
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if (vdso_enabled) \
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2010-03-29 07:04:19 +04:00
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NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE); \
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else \
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2012-11-16 13:46:20 +04:00
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NEW_AUX_ENT(AT_IGNORE, 0)
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2007-12-10 09:50:28 +03:00
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#else
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2012-11-16 13:46:20 +04:00
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#define VSYSCALL_AUX_ENT NEW_AUX_ENT(AT_IGNORE, 0)
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2007-12-10 09:50:28 +03:00
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#endif /* CONFIG_VSYSCALL */
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2007-12-10 10:21:57 +03:00
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#ifdef CONFIG_SH_FPU
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#define FPU_AUX_ENT NEW_AUX_ENT(AT_FPUCW, FPSCR_INIT)
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#else
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2010-03-29 07:04:19 +04:00
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#define FPU_AUX_ENT NEW_AUX_ENT(AT_IGNORE, 0)
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2007-12-10 10:21:57 +03:00
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#endif
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2007-12-10 09:50:28 +03:00
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extern int l1i_cache_shape, l1d_cache_shape, l2_cache_shape;
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2007-10-17 10:30:12 +04:00
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/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
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2006-09-27 13:33:49 +04:00
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#define ARCH_DLINFO \
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do { \
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2007-12-10 10:21:57 +03:00
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/* Optional FPU initialization */ \
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FPU_AUX_ENT; \
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\
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2007-12-10 09:50:28 +03:00
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/* Optional vsyscall entry */ \
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2007-12-10 10:21:57 +03:00
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VSYSCALL_AUX_ENT; \
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2007-12-10 09:50:28 +03:00
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\
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/* Cache desc */ \
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NEW_AUX_ENT(AT_L1I_CACHESHAPE, l1i_cache_shape); \
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NEW_AUX_ENT(AT_L1D_CACHESHAPE, l1d_cache_shape); \
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NEW_AUX_ENT(AT_L2_CACHESHAPE, l2_cache_shape); \
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2006-09-27 13:33:49 +04:00
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} while (0)
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2007-12-10 10:06:32 +03:00
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#endif /* __KERNEL__ */
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2005-04-17 02:20:36 +04:00
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#endif /* __ASM_SH_ELF_H */
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