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ARC: Add guard macro to uapi/asm/unistd.h
Chen originally proposed this as "right thing to do" however I actually ran into this when building perf tools. Some of the utils include unistd.h as well as linux/unistd.h. Since -I includes kernel headers too, we end up including the ARC unistd.h twice, leading to redefinition nwarnings. ------------------>8------------------- CC bench/sched-pipe.o In file included from ~/kernel/arch/arc/include/uapi/asm/unistd.h:21:0, from ~/kernel/include/uapi/linux/unistd.h:7, from bench/sched-pipe.c:24: ~/kernel/include/uapi/asm-generic/unistd.h:889:0: error: "__NR_fcntl64" redefined [-Werror] #define __NR_fcntl64 __NR3264_fcntl ^ In file included from ~/gnu/arc-linux-uclibc/sys-include/sys/syscall.h:24:0, from bench/../perf.h:112, from bench/sched-pipe.c:13: ~/gnu/arc-linux-uclibc/include/bits/sysnum.h:761:0: note: this is the location of the previous definition ------------------>8------------------- Verified that make headers_install works fine with this. Suggested-by: Chen Gang <gang.chen.5i5j@gmail.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: David Howells <dhowells@redhat.com>
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@ -8,6 +8,9 @@
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/******** no-legacy-syscalls-ABI *******/
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#ifndef _UAPI_ASM_ARC_UNISTD_H
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#define _UAPI_ASM_ARC_UNISTD_H
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#define __ARCH_WANT_SYS_EXECVE
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#define __ARCH_WANT_SYS_CLONE
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#define __ARCH_WANT_SYS_VFORK
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@ -32,3 +35,5 @@ __SYSCALL(__NR_arc_gettls, sys_arc_gettls)
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/* Generic syscall (fs/filesystems.c - lost in asm-generic/unistd.h */
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#define __NR_sysfs (__NR_arch_specific_syscall + 3)
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__SYSCALL(__NR_sysfs, sys_sysfs)
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#endif
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