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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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b24413180f
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>
173 lines
5.5 KiB
C
173 lines
5.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_PARISC_UNISTD_H_
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#define _ASM_PARISC_UNISTD_H_
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#include <uapi/asm/unistd.h>
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#ifndef __ASSEMBLY__
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#define SYS_ify(syscall_name) __NR_##syscall_name
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#ifndef ASM_LINE_SEP
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# define ASM_LINE_SEP ;
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#endif
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/* Definition taken from glibc 2.3.3
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* sysdeps/unix/sysv/linux/hppa/sysdep.h
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*/
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#ifdef PIC
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/* WARNING: CANNOT BE USED IN A NOP! */
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# define K_STW_ASM_PIC " copy %%r19, %%r4\n"
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# define K_LDW_ASM_PIC " copy %%r4, %%r19\n"
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# define K_USING_GR4 "%r4",
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#else
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# define K_STW_ASM_PIC " \n"
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# define K_LDW_ASM_PIC " \n"
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# define K_USING_GR4
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#endif
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/* GCC has to be warned that a syscall may clobber all the ABI
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registers listed as "caller-saves", see page 8, Table 2
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in section 2.2.6 of the PA-RISC RUN-TIME architecture
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document. However! r28 is the result and will conflict with
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the clobber list so it is left out. Also the input arguments
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registers r20 -> r26 will conflict with the list so they
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are treated specially. Although r19 is clobbered by the syscall
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we cannot say this because it would violate ABI, thus we say
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r4 is clobbered and use that register to save/restore r19
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across the syscall. */
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#define K_CALL_CLOB_REGS "%r1", "%r2", K_USING_GR4 \
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"%r20", "%r29", "%r31"
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#undef K_INLINE_SYSCALL
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#define K_INLINE_SYSCALL(name, nr, args...) ({ \
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long __sys_res; \
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{ \
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register unsigned long __res __asm__("r28"); \
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K_LOAD_ARGS_##nr(args) \
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/* FIXME: HACK stw/ldw r19 around syscall */ \
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__asm__ volatile( \
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K_STW_ASM_PIC \
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" ble 0x100(%%sr2, %%r0)\n" \
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" ldi %1, %%r20\n" \
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K_LDW_ASM_PIC \
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: "=r" (__res) \
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: "i" (SYS_ify(name)) K_ASM_ARGS_##nr \
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: "memory", K_CALL_CLOB_REGS K_CLOB_ARGS_##nr \
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); \
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__sys_res = (long)__res; \
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} \
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if ( (unsigned long)__sys_res >= (unsigned long)-4095 ){ \
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errno = -__sys_res; \
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__sys_res = -1; \
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} \
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__sys_res; \
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})
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#define K_LOAD_ARGS_0()
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#define K_LOAD_ARGS_1(r26) \
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register unsigned long __r26 __asm__("r26") = (unsigned long)(r26); \
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K_LOAD_ARGS_0()
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#define K_LOAD_ARGS_2(r26,r25) \
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register unsigned long __r25 __asm__("r25") = (unsigned long)(r25); \
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K_LOAD_ARGS_1(r26)
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#define K_LOAD_ARGS_3(r26,r25,r24) \
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register unsigned long __r24 __asm__("r24") = (unsigned long)(r24); \
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K_LOAD_ARGS_2(r26,r25)
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#define K_LOAD_ARGS_4(r26,r25,r24,r23) \
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register unsigned long __r23 __asm__("r23") = (unsigned long)(r23); \
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K_LOAD_ARGS_3(r26,r25,r24)
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#define K_LOAD_ARGS_5(r26,r25,r24,r23,r22) \
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register unsigned long __r22 __asm__("r22") = (unsigned long)(r22); \
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K_LOAD_ARGS_4(r26,r25,r24,r23)
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#define K_LOAD_ARGS_6(r26,r25,r24,r23,r22,r21) \
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register unsigned long __r21 __asm__("r21") = (unsigned long)(r21); \
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K_LOAD_ARGS_5(r26,r25,r24,r23,r22)
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/* Even with zero args we use r20 for the syscall number */
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#define K_ASM_ARGS_0
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#define K_ASM_ARGS_1 K_ASM_ARGS_0, "r" (__r26)
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#define K_ASM_ARGS_2 K_ASM_ARGS_1, "r" (__r25)
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#define K_ASM_ARGS_3 K_ASM_ARGS_2, "r" (__r24)
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#define K_ASM_ARGS_4 K_ASM_ARGS_3, "r" (__r23)
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#define K_ASM_ARGS_5 K_ASM_ARGS_4, "r" (__r22)
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#define K_ASM_ARGS_6 K_ASM_ARGS_5, "r" (__r21)
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/* The registers not listed as inputs but clobbered */
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#define K_CLOB_ARGS_6
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#define K_CLOB_ARGS_5 K_CLOB_ARGS_6, "%r21"
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#define K_CLOB_ARGS_4 K_CLOB_ARGS_5, "%r22"
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#define K_CLOB_ARGS_3 K_CLOB_ARGS_4, "%r23"
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#define K_CLOB_ARGS_2 K_CLOB_ARGS_3, "%r24"
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#define K_CLOB_ARGS_1 K_CLOB_ARGS_2, "%r25"
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#define K_CLOB_ARGS_0 K_CLOB_ARGS_1, "%r26"
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#define _syscall0(type,name) \
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type name(void) \
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{ \
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return K_INLINE_SYSCALL(name, 0); \
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}
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#define _syscall1(type,name,type1,arg1) \
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type name(type1 arg1) \
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{ \
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return K_INLINE_SYSCALL(name, 1, arg1); \
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}
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#define _syscall2(type,name,type1,arg1,type2,arg2) \
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type name(type1 arg1, type2 arg2) \
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{ \
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return K_INLINE_SYSCALL(name, 2, arg1, arg2); \
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}
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#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
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type name(type1 arg1, type2 arg2, type3 arg3) \
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{ \
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return K_INLINE_SYSCALL(name, 3, arg1, arg2, arg3); \
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}
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#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
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type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
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{ \
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return K_INLINE_SYSCALL(name, 4, arg1, arg2, arg3, arg4); \
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}
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/* select takes 5 arguments */
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#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
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type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \
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{ \
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return K_INLINE_SYSCALL(name, 5, arg1, arg2, arg3, arg4, arg5); \
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}
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#define __ARCH_WANT_OLD_READDIR
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#define __ARCH_WANT_STAT64
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#define __ARCH_WANT_SYS_ALARM
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#define __ARCH_WANT_SYS_GETHOSTNAME
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#define __ARCH_WANT_SYS_PAUSE
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#define __ARCH_WANT_SYS_SIGNAL
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#define __ARCH_WANT_SYS_TIME
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#define __ARCH_WANT_COMPAT_SYS_TIME
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#define __ARCH_WANT_COMPAT_SYS_SCHED_RR_GET_INTERVAL
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#define __ARCH_WANT_SYS_UTIME
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#define __ARCH_WANT_SYS_WAITPID
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#define __ARCH_WANT_SYS_SOCKETCALL
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#define __ARCH_WANT_SYS_FADVISE64
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#define __ARCH_WANT_SYS_GETPGRP
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#define __ARCH_WANT_SYS_LLSEEK
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#define __ARCH_WANT_SYS_NICE
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#define __ARCH_WANT_SYS_OLDUMOUNT
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#define __ARCH_WANT_SYS_SIGPENDING
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#define __ARCH_WANT_SYS_SIGPROCMASK
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#define __ARCH_WANT_SYS_FORK
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#define __ARCH_WANT_SYS_VFORK
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#define __ARCH_WANT_SYS_CLONE
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#define __ARCH_WANT_COMPAT_SYS_SENDFILE
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#endif /* __ASSEMBLY__ */
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#undef STR
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#endif /* _ASM_PARISC_UNISTD_H_ */
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