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Userspace cannot compile <asm/sembuf.h> due to some missing type
definitions. For example, building it for x86 fails as follows:
CC usr/include/asm/sembuf.h.s
In file included from <command-line>:32:0:
usr/include/asm/sembuf.h:17:20: error: field `sem_perm' has incomplete type
struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
^~~~~~~~
usr/include/asm/sembuf.h:24:2: error: unknown type name `__kernel_time_t'
__kernel_time_t sem_otime; /* last semop time */
^~~~~~~~~~~~~~~
usr/include/asm/sembuf.h:25:2: error: unknown type name `__kernel_ulong_t'
__kernel_ulong_t __unused1;
^~~~~~~~~~~~~~~~
usr/include/asm/sembuf.h:26:2: error: unknown type name `__kernel_time_t'
__kernel_time_t sem_ctime; /* last change time */
^~~~~~~~~~~~~~~
usr/include/asm/sembuf.h:27:2: error: unknown type name `__kernel_ulong_t'
__kernel_ulong_t __unused2;
^~~~~~~~~~~~~~~~
usr/include/asm/sembuf.h:29:2: error: unknown type name `__kernel_ulong_t'
__kernel_ulong_t sem_nsems; /* no. of semaphores in array */
^~~~~~~~~~~~~~~~
usr/include/asm/sembuf.h:30:2: error: unknown type name `__kernel_ulong_t'
__kernel_ulong_t __unused3;
^~~~~~~~~~~~~~~~
usr/include/asm/sembuf.h:31:2: error: unknown type name `__kernel_ulong_t'
__kernel_ulong_t __unused4;
^~~~~~~~~~~~~~~~
It is just a matter of missing include directive.
Include <asm/ipcbuf.h> to make it self-contained, and add it to
the compile-test coverage.
Link: http://lkml.kernel.org/r/20191030063855.9989-3-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
36 lines
1 KiB
C
36 lines
1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _ASM_X86_SEMBUF_H
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#define _ASM_X86_SEMBUF_H
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#include <asm/ipcbuf.h>
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/*
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* The semid64_ds structure for x86 architecture.
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* Note extra padding because this structure is passed back and forth
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* between kernel and user space.
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*
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* Pad space is left for:
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* - 2 miscellaneous 32-bit values
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*
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* x86_64 and x32 incorrectly added padding here, so the structures
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* are still incompatible with the padding on x86.
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*/
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struct semid64_ds {
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struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
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#ifdef __i386__
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unsigned long sem_otime; /* last semop time */
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unsigned long sem_otime_high;
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unsigned long sem_ctime; /* last change time */
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unsigned long sem_ctime_high;
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#else
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__kernel_long_t sem_otime; /* last semop time */
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__kernel_ulong_t __unused1;
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__kernel_long_t sem_ctime; /* last change time */
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__kernel_ulong_t __unused2;
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#endif
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__kernel_ulong_t sem_nsems; /* no. of semaphores in array */
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__kernel_ulong_t __unused3;
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__kernel_ulong_t __unused4;
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};
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#endif /* _ASM_X86_SEMBUF_H */
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