forked from OSchip/llvm-project
109 lines
3.3 KiB
C++
109 lines
3.3 KiB
C++
//===-- sanitizer_platform_limits_linux.cpp -------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of Sanitizer common code.
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//
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// Sizes and layouts of linux kernel data structures.
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//===----------------------------------------------------------------------===//
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// This is a separate compilation unit for linux headers that conflict with
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// userspace headers.
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// Most "normal" includes go in sanitizer_platform_limits_posix.cpp
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#include "sanitizer_platform.h"
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#if SANITIZER_LINUX
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#include "sanitizer_internal_defs.h"
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#include "sanitizer_platform_limits_posix.h"
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// For offsetof -> __builtin_offsetof definition.
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#include <stddef.h>
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// With old kernels (and even new kernels on powerpc) asm/stat.h uses types that
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// are not defined anywhere in userspace headers. Fake them. This seems to work
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// fine with newer headers, too.
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#include <linux/posix_types.h>
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#if defined(__x86_64__) || defined(__mips__)
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#include <sys/stat.h>
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#else
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#define ino_t __kernel_ino_t
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#define mode_t __kernel_mode_t
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#define nlink_t __kernel_nlink_t
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#define uid_t __kernel_uid_t
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#define gid_t __kernel_gid_t
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#define off_t __kernel_off_t
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#define time_t __kernel_time_t
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// This header seems to contain the definitions of _kernel_ stat* structs.
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#include <asm/stat.h>
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#undef ino_t
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#undef mode_t
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#undef nlink_t
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#undef uid_t
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#undef gid_t
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#undef off_t
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#endif
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#include <linux/aio_abi.h>
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#if !SANITIZER_ANDROID
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#include <sys/statfs.h>
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#include <linux/perf_event.h>
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#endif
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using namespace __sanitizer;
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namespace __sanitizer {
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#if !SANITIZER_ANDROID
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unsigned struct_statfs64_sz = sizeof(struct statfs64);
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#endif
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} // namespace __sanitizer
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#if !defined(__powerpc64__) && !defined(__x86_64__) && !defined(__aarch64__)\
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&& !defined(__mips__) && !defined(__s390__)\
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&& !defined(__sparc__) && !defined(__riscv)
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COMPILER_CHECK(struct___old_kernel_stat_sz == sizeof(struct __old_kernel_stat));
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#endif
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COMPILER_CHECK(struct_kernel_stat_sz == sizeof(struct stat));
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#if defined(__i386__)
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COMPILER_CHECK(struct_kernel_stat64_sz == sizeof(struct stat64));
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#endif
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CHECK_TYPE_SIZE(io_event);
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CHECK_SIZE_AND_OFFSET(io_event, data);
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CHECK_SIZE_AND_OFFSET(io_event, obj);
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CHECK_SIZE_AND_OFFSET(io_event, res);
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CHECK_SIZE_AND_OFFSET(io_event, res2);
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#if !SANITIZER_ANDROID
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COMPILER_CHECK(sizeof(struct __sanitizer_perf_event_attr) <=
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sizeof(struct perf_event_attr));
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CHECK_SIZE_AND_OFFSET(perf_event_attr, type);
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CHECK_SIZE_AND_OFFSET(perf_event_attr, size);
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#endif
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COMPILER_CHECK(iocb_cmd_pread == IOCB_CMD_PREAD);
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COMPILER_CHECK(iocb_cmd_pwrite == IOCB_CMD_PWRITE);
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#if !SANITIZER_ANDROID
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COMPILER_CHECK(iocb_cmd_preadv == IOCB_CMD_PREADV);
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COMPILER_CHECK(iocb_cmd_pwritev == IOCB_CMD_PWRITEV);
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#endif
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CHECK_TYPE_SIZE(iocb);
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CHECK_SIZE_AND_OFFSET(iocb, aio_data);
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// Skip aio_key, it's weird.
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CHECK_SIZE_AND_OFFSET(iocb, aio_lio_opcode);
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CHECK_SIZE_AND_OFFSET(iocb, aio_reqprio);
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CHECK_SIZE_AND_OFFSET(iocb, aio_fildes);
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CHECK_SIZE_AND_OFFSET(iocb, aio_buf);
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CHECK_SIZE_AND_OFFSET(iocb, aio_nbytes);
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CHECK_SIZE_AND_OFFSET(iocb, aio_offset);
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#endif // SANITIZER_LINUX
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