168d75effSDimitry Andric //===-- sanitizer_platform_limits_linux.cpp -------------------------------===// 268d75effSDimitry Andric // 368d75effSDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 468d75effSDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 568d75effSDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 668d75effSDimitry Andric // 768d75effSDimitry Andric //===----------------------------------------------------------------------===// 868d75effSDimitry Andric // 968d75effSDimitry Andric // This file is a part of Sanitizer common code. 1068d75effSDimitry Andric // 1168d75effSDimitry Andric // Sizes and layouts of linux kernel data structures. 1268d75effSDimitry Andric //===----------------------------------------------------------------------===// 1368d75effSDimitry Andric 1468d75effSDimitry Andric // This is a separate compilation unit for linux headers that conflict with 1568d75effSDimitry Andric // userspace headers. 1668d75effSDimitry Andric // Most "normal" includes go in sanitizer_platform_limits_posix.cpp 1768d75effSDimitry Andric 1868d75effSDimitry Andric #include "sanitizer_platform.h" 1968d75effSDimitry Andric #if SANITIZER_LINUX 2068d75effSDimitry Andric 2168d75effSDimitry Andric #include "sanitizer_internal_defs.h" 2268d75effSDimitry Andric #include "sanitizer_platform_limits_posix.h" 2368d75effSDimitry Andric 2468d75effSDimitry Andric // For offsetof -> __builtin_offsetof definition. 2568d75effSDimitry Andric #include <stddef.h> 2668d75effSDimitry Andric 2768d75effSDimitry Andric // With old kernels (and even new kernels on powerpc) asm/stat.h uses types that 2868d75effSDimitry Andric // are not defined anywhere in userspace headers. Fake them. This seems to work 2968d75effSDimitry Andric // fine with newer headers, too. 3068d75effSDimitry Andric #include <linux/posix_types.h> 31349cc55cSDimitry Andric # if defined(__x86_64__) || defined(__mips__) || defined(__hexagon__) 3268d75effSDimitry Andric # include <sys/stat.h> 3368d75effSDimitry Andric # else 3468d75effSDimitry Andric # define ino_t __kernel_ino_t 3568d75effSDimitry Andric # define mode_t __kernel_mode_t 3668d75effSDimitry Andric # define nlink_t __kernel_nlink_t 3768d75effSDimitry Andric # define uid_t __kernel_uid_t 3868d75effSDimitry Andric # define gid_t __kernel_gid_t 3968d75effSDimitry Andric # define off_t __kernel_off_t 4068d75effSDimitry Andric # define time_t __kernel_time_t 4168d75effSDimitry Andric // This header seems to contain the definitions of _kernel_ stat* structs. 4268d75effSDimitry Andric # include <asm/stat.h> 4368d75effSDimitry Andric # undef ino_t 4468d75effSDimitry Andric # undef mode_t 4568d75effSDimitry Andric # undef nlink_t 4668d75effSDimitry Andric # undef uid_t 4768d75effSDimitry Andric # undef gid_t 4868d75effSDimitry Andric # undef off_t 4968d75effSDimitry Andric # endif 5068d75effSDimitry Andric 5168d75effSDimitry Andric # include <linux/aio_abi.h> 5268d75effSDimitry Andric 5368d75effSDimitry Andric # if !SANITIZER_ANDROID 5468d75effSDimitry Andric # include <sys/statfs.h> 5568d75effSDimitry Andric # include <linux/perf_event.h> 5668d75effSDimitry Andric # endif 5768d75effSDimitry Andric 5868d75effSDimitry Andric using namespace __sanitizer; 5968d75effSDimitry Andric 60349cc55cSDimitry Andric # if !defined(__powerpc64__) && !defined(__x86_64__) && \ 61349cc55cSDimitry Andric !defined(__aarch64__) && !defined(__mips__) && !defined(__s390__) && \ 62*fcaf7f86SDimitry Andric !defined(__sparc__) && !defined(__riscv) && !defined(__hexagon__) && \ 63*fcaf7f86SDimitry Andric !defined(__loongarch__) 6468d75effSDimitry Andric COMPILER_CHECK(struct___old_kernel_stat_sz == sizeof(struct __old_kernel_stat)); 6568d75effSDimitry Andric #endif 6668d75effSDimitry Andric 6768d75effSDimitry Andric COMPILER_CHECK(struct_kernel_stat_sz == sizeof(struct stat)); 6868d75effSDimitry Andric 6968d75effSDimitry Andric #if defined(__i386__) 7068d75effSDimitry Andric COMPILER_CHECK(struct_kernel_stat64_sz == sizeof(struct stat64)); 7168d75effSDimitry Andric #endif 7268d75effSDimitry Andric 7368d75effSDimitry Andric CHECK_TYPE_SIZE(io_event); 7468d75effSDimitry Andric CHECK_SIZE_AND_OFFSET(io_event, data); 7568d75effSDimitry Andric CHECK_SIZE_AND_OFFSET(io_event, obj); 7668d75effSDimitry Andric CHECK_SIZE_AND_OFFSET(io_event, res); 7768d75effSDimitry Andric CHECK_SIZE_AND_OFFSET(io_event, res2); 7868d75effSDimitry Andric 7968d75effSDimitry Andric #if !SANITIZER_ANDROID 8068d75effSDimitry Andric COMPILER_CHECK(sizeof(struct __sanitizer_perf_event_attr) <= 8168d75effSDimitry Andric sizeof(struct perf_event_attr)); 8268d75effSDimitry Andric CHECK_SIZE_AND_OFFSET(perf_event_attr, type); 8368d75effSDimitry Andric CHECK_SIZE_AND_OFFSET(perf_event_attr, size); 8468d75effSDimitry Andric #endif 8568d75effSDimitry Andric 8668d75effSDimitry Andric COMPILER_CHECK(iocb_cmd_pread == IOCB_CMD_PREAD); 8768d75effSDimitry Andric COMPILER_CHECK(iocb_cmd_pwrite == IOCB_CMD_PWRITE); 8868d75effSDimitry Andric #if !SANITIZER_ANDROID 8968d75effSDimitry Andric COMPILER_CHECK(iocb_cmd_preadv == IOCB_CMD_PREADV); 9068d75effSDimitry Andric COMPILER_CHECK(iocb_cmd_pwritev == IOCB_CMD_PWRITEV); 9168d75effSDimitry Andric #endif 9268d75effSDimitry Andric 9368d75effSDimitry Andric CHECK_TYPE_SIZE(iocb); 9468d75effSDimitry Andric CHECK_SIZE_AND_OFFSET(iocb, aio_data); 9568d75effSDimitry Andric // Skip aio_key, it's weird. 9668d75effSDimitry Andric CHECK_SIZE_AND_OFFSET(iocb, aio_lio_opcode); 9768d75effSDimitry Andric CHECK_SIZE_AND_OFFSET(iocb, aio_reqprio); 9868d75effSDimitry Andric CHECK_SIZE_AND_OFFSET(iocb, aio_fildes); 9968d75effSDimitry Andric CHECK_SIZE_AND_OFFSET(iocb, aio_buf); 10068d75effSDimitry Andric CHECK_SIZE_AND_OFFSET(iocb, aio_nbytes); 10168d75effSDimitry Andric CHECK_SIZE_AND_OFFSET(iocb, aio_offset); 10268d75effSDimitry Andric 10368d75effSDimitry Andric #endif // SANITIZER_LINUX 104