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ARC: Allow conditional multiple inclusion of uapi/asm/unistd.h

Commit 97bc386fc1 "ARC: Add guard macro to uapi/asm/unistd.h"
inhibited multiple inclusion of ARCH unistd.h. This however hosed the system
since Generic syscall table generator relies on it being included twice,
and in lack-of an empty table was emitted by C preprocessor.

Fix that by allowing one exception to rule for the special case (just
like Xtensa)

Suggested-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
master
Vineet Gupta 8 years ago
parent
commit
1e01c7eb7c
  1. 8
      arch/arc/include/uapi/asm/unistd.h

8
arch/arc/include/uapi/asm/unistd.h

@ -8,7 +8,11 @@
/******** no-legacy-syscalls-ABI *******/
#ifndef _UAPI_ASM_ARC_UNISTD_H
/*
* Non-typical guard macro to enable inclusion twice in ARCH sys.c
* That is how the Generic syscall wrapper generator works
*/
#if !defined(_UAPI_ASM_ARC_UNISTD_H) || defined(__SYSCALL)
#define _UAPI_ASM_ARC_UNISTD_H
#define __ARCH_WANT_SYS_EXECVE
@ -36,4 +40,6 @@ __SYSCALL(__NR_arc_gettls, sys_arc_gettls)
#define __NR_sysfs (__NR_arch_specific_syscall + 3)
__SYSCALL(__NR_sysfs, sys_sysfs)
#undef __SYSCALL
#endif

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