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 21:07:57 +07:00
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/* SPDX-License-Identifier: GPL-2.0 */
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2005-04-17 05:20:36 +07:00
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/*
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* S390 version
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*
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* Derived from "include/asm-i386/elf.h"
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*/
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#ifndef __ASMS390_ELF_H
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#define __ASMS390_ELF_H
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/* s390 relocations defined by the ABIs */
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#define R_390_NONE 0 /* No reloc. */
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#define R_390_8 1 /* Direct 8 bit. */
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#define R_390_12 2 /* Direct 12 bit. */
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#define R_390_16 3 /* Direct 16 bit. */
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#define R_390_32 4 /* Direct 32 bit. */
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#define R_390_PC32 5 /* PC relative 32 bit. */
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#define R_390_GOT12 6 /* 12 bit GOT offset. */
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#define R_390_GOT32 7 /* 32 bit GOT offset. */
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#define R_390_PLT32 8 /* 32 bit PC relative PLT address. */
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#define R_390_COPY 9 /* Copy symbol at runtime. */
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#define R_390_GLOB_DAT 10 /* Create GOT entry. */
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#define R_390_JMP_SLOT 11 /* Create PLT entry. */
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#define R_390_RELATIVE 12 /* Adjust by program base. */
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#define R_390_GOTOFF32 13 /* 32 bit offset to GOT. */
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#define R_390_GOTPC 14 /* 32 bit PC rel. offset to GOT. */
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#define R_390_GOT16 15 /* 16 bit GOT offset. */
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#define R_390_PC16 16 /* PC relative 16 bit. */
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#define R_390_PC16DBL 17 /* PC relative 16 bit shifted by 1. */
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#define R_390_PLT16DBL 18 /* 16 bit PC rel. PLT shifted by 1. */
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#define R_390_PC32DBL 19 /* PC relative 32 bit shifted by 1. */
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#define R_390_PLT32DBL 20 /* 32 bit PC rel. PLT shifted by 1. */
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#define R_390_GOTPCDBL 21 /* 32 bit PC rel. GOT shifted by 1. */
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#define R_390_64 22 /* Direct 64 bit. */
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#define R_390_PC64 23 /* PC relative 64 bit. */
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#define R_390_GOT64 24 /* 64 bit GOT offset. */
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#define R_390_PLT64 25 /* 64 bit PC relative PLT address. */
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#define R_390_GOTENT 26 /* 32 bit PC rel. to GOT entry >> 1. */
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#define R_390_GOTOFF16 27 /* 16 bit offset to GOT. */
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#define R_390_GOTOFF64 28 /* 64 bit offset to GOT. */
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#define R_390_GOTPLT12 29 /* 12 bit offset to jump slot. */
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#define R_390_GOTPLT16 30 /* 16 bit offset to jump slot. */
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#define R_390_GOTPLT32 31 /* 32 bit offset to jump slot. */
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#define R_390_GOTPLT64 32 /* 64 bit offset to jump slot. */
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#define R_390_GOTPLTENT 33 /* 32 bit rel. offset to jump slot. */
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#define R_390_PLTOFF16 34 /* 16 bit offset from GOT to PLT. */
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#define R_390_PLTOFF32 35 /* 32 bit offset from GOT to PLT. */
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#define R_390_PLTOFF64 36 /* 16 bit offset from GOT to PLT. */
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#define R_390_TLS_LOAD 37 /* Tag for load insn in TLS code. */
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#define R_390_TLS_GDCALL 38 /* Tag for function call in general
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dynamic TLS code. */
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#define R_390_TLS_LDCALL 39 /* Tag for function call in local
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dynamic TLS code. */
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#define R_390_TLS_GD32 40 /* Direct 32 bit for general dynamic
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thread local data. */
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#define R_390_TLS_GD64 41 /* Direct 64 bit for general dynamic
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thread local data. */
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#define R_390_TLS_GOTIE12 42 /* 12 bit GOT offset for static TLS
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block offset. */
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#define R_390_TLS_GOTIE32 43 /* 32 bit GOT offset for static TLS
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block offset. */
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#define R_390_TLS_GOTIE64 44 /* 64 bit GOT offset for static TLS
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block offset. */
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#define R_390_TLS_LDM32 45 /* Direct 32 bit for local dynamic
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thread local data in LD code. */
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#define R_390_TLS_LDM64 46 /* Direct 64 bit for local dynamic
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thread local data in LD code. */
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#define R_390_TLS_IE32 47 /* 32 bit address of GOT entry for
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negated static TLS block offset. */
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#define R_390_TLS_IE64 48 /* 64 bit address of GOT entry for
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negated static TLS block offset. */
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#define R_390_TLS_IEENT 49 /* 32 bit rel. offset to GOT entry for
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negated static TLS block offset. */
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#define R_390_TLS_LE32 50 /* 32 bit negated offset relative to
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static TLS block. */
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#define R_390_TLS_LE64 51 /* 64 bit negated offset relative to
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static TLS block. */
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#define R_390_TLS_LDO32 52 /* 32 bit offset relative to TLS
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block. */
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#define R_390_TLS_LDO64 53 /* 64 bit offset relative to TLS
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block. */
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#define R_390_TLS_DTPMOD 54 /* ID of module containing symbol. */
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#define R_390_TLS_DTPOFF 55 /* Offset in TLS block. */
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#define R_390_TLS_TPOFF 56 /* Negate offset in static TLS
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block. */
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#define R_390_20 57 /* Direct 20 bit. */
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#define R_390_GOT20 58 /* 20 bit GOT offset. */
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#define R_390_GOTPLT20 59 /* 20 bit offset to jump slot. */
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#define R_390_TLS_GOTIE20 60 /* 20 bit GOT offset for static TLS
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block offset. */
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/* Keep this the last entry. */
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#define R_390_NUM 61
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2009-10-06 15:34:13 +07:00
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/* Bits present in AT_HWCAP. */
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#define HWCAP_S390_ESAN3 1
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#define HWCAP_S390_ZARCH 2
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#define HWCAP_S390_STFLE 4
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#define HWCAP_S390_MSA 8
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#define HWCAP_S390_LDISP 16
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#define HWCAP_S390_EIMM 32
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#define HWCAP_S390_DFP 64
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#define HWCAP_S390_HPAGE 128
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#define HWCAP_S390_ETF3EH 256
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#define HWCAP_S390_HIGH_GPRS 512
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2012-07-31 16:03:04 +07:00
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#define HWCAP_S390_TE 1024
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2014-10-06 22:53:53 +07:00
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#define HWCAP_S390_VXRS 2048
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2016-03-31 14:55:17 +07:00
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#define HWCAP_S390_VXRS_BCD 4096
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#define HWCAP_S390_VXRS_EXT 8192
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2016-01-26 20:10:34 +07:00
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#define HWCAP_S390_GS 16384
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2009-10-06 15:34:13 +07:00
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2015-02-24 21:54:47 +07:00
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/* Internal bits, not exposed via elf */
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#define HWCAP_INT_SIE 1UL
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2005-04-17 05:20:36 +07:00
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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 ELFCLASS64
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#define ELF_DATA ELFDATA2MSB
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#define ELF_ARCH EM_S390
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2017-06-07 19:10:24 +07:00
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/* s390 specific phdr types */
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#define PT_S390_PGSTE 0x70000000
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2006-09-17 02:15:46 +07:00
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/*
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* ELF register definitions..
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*/
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2018-03-14 11:03:25 +07:00
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#include <linux/compat.h>
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2006-09-17 02:15:46 +07:00
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#include <asm/ptrace.h>
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2013-04-24 17:58:39 +07:00
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#include <asm/syscall.h>
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2006-09-17 02:15:46 +07:00
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#include <asm/user.h>
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typedef s390_fp_regs elf_fpregset_t;
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typedef s390_regs elf_gregset_t;
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2008-07-14 14:58:54 +07:00
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typedef s390_fp_regs compat_elf_fpregset_t;
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typedef s390_compat_regs compat_elf_gregset_t;
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2017-02-04 06:16:44 +07:00
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#include <linux/sched/mm.h> /* for task_struct */
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2008-02-10 00:24:35 +07:00
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#include <asm/mmu_context.h>
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2006-09-17 02:15:46 +07:00
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2008-12-25 19:38:36 +07:00
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#include <asm/vdso.h>
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extern unsigned int vdso_enabled;
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2005-04-17 05:20:36 +07:00
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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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#define elf_check_arch(x) \
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(((x)->e_machine == EM_S390 || (x)->e_machine == EM_S390_OLD) \
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&& (x)->e_ident[EI_CLASS] == ELF_CLASS)
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2008-07-14 14:58:54 +07:00
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#define compat_elf_check_arch(x) \
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(((x)->e_machine == EM_S390 || (x)->e_machine == EM_S390_OLD) \
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&& (x)->e_ident[EI_CLASS] == ELF_CLASS)
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#define compat_start_thread start_thread31
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2005-04-17 05:20:36 +07:00
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2017-06-07 19:10:24 +07:00
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struct arch_elf_state {
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int rc;
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};
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#define INIT_ARCH_ELF_STATE { .rc = 0 }
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#define arch_check_elf(ehdr, interp, interp_ehdr, state) (0)
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#ifdef CONFIG_PGSTE
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#define arch_elf_pt_proc(ehdr, phdr, elf, interp, state) \
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({ \
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struct arch_elf_state *_state = state; \
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if ((phdr)->p_type == PT_S390_PGSTE && \
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!page_table_allocate_pgste && \
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!test_thread_flag(TIF_PGSTE) && \
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!current->mm->context.alloc_pgste) { \
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set_thread_flag(TIF_PGSTE); \
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set_pt_regs_flag(task_pt_regs(current), \
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PIF_SYSCALL_RESTART); \
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_state->rc = -EAGAIN; \
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} \
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_state->rc; \
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})
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#else
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#define arch_elf_pt_proc(ehdr, phdr, elf, interp, state) \
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({ \
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(state)->rc; \
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})
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#endif
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2005-04-17 05:20:36 +07:00
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/* For SVR4/S390 the function pointer to be registered with `atexit` is
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passed in R14. */
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#define ELF_PLAT_INIT(_r, load_addr) \
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do { \
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_r->gprs[14] = 0; \
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} while (0)
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2008-07-14 14:58:54 +07:00
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#define CORE_DUMP_USE_REGSET
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2017-07-05 12:37:27 +07:00
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#define ELF_EXEC_PAGESIZE PAGE_SIZE
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2005-04-17 05:20:36 +07:00
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2017-11-24 22:23:15 +07:00
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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. 64-bit
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tasks are aligned to 4GB. */
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#define ELF_ET_DYN_BASE (is_compat_task() ? \
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(STACK_TOP / 3 * 2) : \
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(STACK_TOP / 3 * 2) & ~((1UL << 32) - 1))
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2005-04-17 05:20:36 +07:00
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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. */
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2007-05-04 23:48:28 +07:00
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extern unsigned long elf_hwcap;
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#define ELF_HWCAP (elf_hwcap)
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2005-04-17 05:20:36 +07:00
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2015-02-24 21:54:47 +07:00
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/* Internal hardware capabilities, not exposed via elf */
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extern unsigned long int_hwcap;
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2005-04-17 05:20:36 +07:00
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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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2007-05-04 23:48:28 +07:00
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#define ELF_PLATFORM_SIZE 8
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extern char elf_platform[];
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#define ELF_PLATFORM (elf_platform)
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2005-04-17 05:20:36 +07:00
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2013-04-24 17:58:39 +07:00
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#ifndef CONFIG_COMPAT
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#define SET_PERSONALITY(ex) \
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do { \
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set_personality(PER_LINUX | \
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(current->personality & (~PER_MASK))); \
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2016-11-08 18:33:38 +07:00
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current->thread.sys_call_table = \
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2013-04-24 17:58:39 +07:00
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(unsigned long) &sys_call_table; \
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} while (0)
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#else /* CONFIG_COMPAT */
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2009-01-23 22:40:23 +07:00
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#define SET_PERSONALITY(ex) \
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do { \
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if (personality(current->personality) != PER_LINUX32) \
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2011-09-26 21:40:33 +07:00
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set_personality(PER_LINUX | \
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(current->personality & ~PER_MASK)); \
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2013-04-24 17:58:39 +07:00
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if ((ex).e_ident[EI_CLASS] == ELFCLASS32) { \
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2009-01-23 22:40:23 +07:00
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set_thread_flag(TIF_31BIT); \
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2016-11-08 18:33:38 +07:00
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current->thread.sys_call_table = \
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2013-04-24 17:58:39 +07:00
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(unsigned long) &sys_call_table_emu; \
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} else { \
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2009-01-23 22:40:23 +07:00
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clear_thread_flag(TIF_31BIT); \
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2016-11-08 18:33:38 +07:00
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current->thread.sys_call_table = \
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2013-04-24 17:58:39 +07:00
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(unsigned long) &sys_call_table; \
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} \
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2005-04-17 05:20:36 +07:00
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} while (0)
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2013-04-24 17:58:39 +07:00
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#endif /* CONFIG_COMPAT */
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2005-04-17 05:20:36 +07:00
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2015-11-10 18:30:28 +07:00
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/*
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* Cache aliasing on the latest machines calls for a mapping granularity
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* of 512KB. For 64-bit processes use a 512KB alignment and a randomization
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* of up to 1GB. For 31-bit processes the virtual address space is limited,
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* use no alignment and limit the randomization to 8MB.
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*/
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2015-11-26 15:25:35 +07:00
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#define BRK_RND_MASK (is_compat_task() ? 0x7ffUL : 0x3ffffUL)
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#define MMAP_RND_MASK (is_compat_task() ? 0x7ffUL : 0x3ff80UL)
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#define MMAP_ALIGN_MASK (is_compat_task() ? 0 : 0x7fUL)
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2015-11-10 18:30:28 +07:00
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#define STACK_RND_MASK MMAP_RND_MASK
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2011-01-12 15:55:22 +07:00
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2016-07-31 19:11:11 +07:00
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/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
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2008-12-25 19:38:36 +07:00
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#define ARCH_DLINFO \
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do { \
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if (vdso_enabled) \
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NEW_AUX_ENT(AT_SYSINFO_EHDR, \
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(unsigned long)current->mm->context.vdso_base); \
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} while (0)
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struct linux_binprm;
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#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
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int arch_setup_additional_pages(struct linux_binprm *, int);
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2005-04-17 05:20:36 +07:00
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#endif
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