09e77f35ab
On Android, fcntl is always implemented by fcntl64(2). This means that an LP32 binary can `fcntl(F_SETLK, struct flock)` (because fcntl64(2) passes through to the 32-bit fcntl(2) to handle F_SETLK), and it can also `fcntl(F_SETLK64, struct flock64)`. What it can't do before this patch is set _FILE_OFFSET_BITS=64 and then `fcntl(F_SETLK, struct flock)` where that `struct flock` is actually implicitly `struct flock64`. Move the kernel uapi structs out of the way, define them ourselves based on __LP64__ and _FILE_OFFSET_BITS, and fix up the relevant F_ constants. (Also add a .clang-format to turn off clang-format in libc/include/.) Bug: N/A Test: treehugger (and strace!) Change-Id: Iccd6c83d9133e1efcf93a7b49a6ae0f1bbd3d58b
66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
/*
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* Copyright (C) 2020 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#pragma once
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/**
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* @file bits/flock.h
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* @brief struct flock.
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*/
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#include <sys/cdefs.h>
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#include <sys/types.h>
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__BEGIN_DECLS
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#define __FLOCK64_BODY \
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short l_type; \
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short l_whence; \
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off64_t l_start; \
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off64_t l_len; \
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pid_t l_pid; \
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#if defined(__USE_FILE_OFFSET64) || defined(__LP64__)
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#define __FLOCK_BODY __FLOCK64_BODY
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#else
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#define __FLOCK_BODY \
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short l_type; \
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short l_whence; \
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off_t l_start; \
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off_t l_len; \
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pid_t l_pid; \
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#endif
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struct flock { __FLOCK_BODY };
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struct flock64 { __FLOCK64_BODY };
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#undef __FLOCK_BODY
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#undef __FLOCK64_BODY
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__END_DECLS
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