From 9cf13067cb5088626ba7ee1ec4c42ec59c7995a0 Mon Sep 17 00:00:00 2001 From: Fangrui Song Date: Mon, 11 Jul 2022 12:53:34 -0700 Subject: [PATCH] [sanitizer] Remove #include to resolve fsconfig_command/mount_attr conflict with glibc 2.36 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It is generally not a good idea to mix usage of glibc headers and Linux UAPI headers (https://sourceware.org/glibc/wiki/Synchronizing_Headers). In glibc since 7eae6a91e9b1670330c9f15730082c91c0b1d570 (milestone: 2.36), sys/mount.h defines `fsconfig_command` which conflicts with linux/mount.h: .../usr/include/linux/mount.h:95:6: error: redeclaration of ‘enum fsconfig_command’ Remove #include which pulls in linux/mount.h. Expand its 4 macros manually. Android sys/mount.h doesn't define BLKBSZGET and it still needs linux/fs.h. In the long term we should move Linux specific definitions to sanitizer_platform_limits_linux.cpp but this commit is easy to cherry pick into older compiler-rt releases. Fix https://github.com/llvm/llvm-project/issues/56421 Reviewed By: #sanitizers, vitalybuka, zatrazz Differential Revision: https://reviews.llvm.org/D129471 --- .../sanitizer_platform_limits_posix.cpp | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cpp index 4bd425435d56d..3a94b260686f1 100644 --- a/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cpp +++ b/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cpp @@ -73,7 +73,9 @@ #include #include #include +#if SANITIZER_ANDROID #include +#endif #include #include #include @@ -876,10 +878,10 @@ unsigned struct_ElfW_Phdr_sz = sizeof(Elf_Phdr); unsigned IOCTL_EVIOCGPROP = IOCTL_NOT_PRESENT; unsigned IOCTL_EVIOCSKEYCODE_V2 = IOCTL_NOT_PRESENT; #endif - unsigned IOCTL_FS_IOC_GETFLAGS = FS_IOC_GETFLAGS; - unsigned IOCTL_FS_IOC_GETVERSION = FS_IOC_GETVERSION; - unsigned IOCTL_FS_IOC_SETFLAGS = FS_IOC_SETFLAGS; - unsigned IOCTL_FS_IOC_SETVERSION = FS_IOC_SETVERSION; + unsigned IOCTL_FS_IOC_GETFLAGS = _IOR('f', 1, long); + unsigned IOCTL_FS_IOC_GETVERSION = _IOR('v', 1, long); + unsigned IOCTL_FS_IOC_SETFLAGS = _IOW('f', 2, long); + unsigned IOCTL_FS_IOC_SETVERSION = _IOW('v', 2, long); unsigned IOCTL_GIO_CMAP = GIO_CMAP; unsigned IOCTL_GIO_FONT = GIO_FONT; unsigned IOCTL_GIO_UNIMAP = GIO_UNIMAP;