"Static declaration of ‘memfd_create’ follows non-static declaration" 使用 Yocto 构建 Linux 图像时出错

Question

我正在 Ubuntu 18.04 主机上使用 Yocto 构建系统构建 Linux 图像。我正在按照 here 提供的步骤进行操作。我正在构建 Colibri iMX6ULL 计算机模块。然而，我的构建失败了，它显示了下面给出的错误

declaration of ‘memfd_create’ follows non-static declaration
|  static int memfd_create(const char *name, unsigned int flags)
|             ^~~~~~~~~~~~
| In file included from /usr/include/x86_64-linux-gnu/bits/mman-linux.h:115:0,
|                  from /usr/include/x86_64-linux-gnu/bits/mman.h:45,
|                  from /usr/include/x86_64-linux-gnu/sys/mman.h:41,
|                  from /home/abhiarora/iohertz/gateway_os/yocto/build/tmp-glibc/work/x86_64-linux/qemu-native/2.10.0-r0/qemu-2.10.0/include/sysemu/os-posix.h:29,
|                  from /home/abhiarora/iohertz/gateway_os/yocto/build/tmp-glibc/work/x86_64-linux/qemu-native/2.10.0-r0/qemu-2.10.0/include/qemu/osdep.h:104,
|                  from /home/abhiarora/iohertz/gateway_os/yocto/build/tmp-glibc/work/x86_64-linux/qemu-native/2.10.0-r0/qemu-2.10.0/util/memfd.c:28:
| /usr/include/x86_64-linux-gnu/bits/mman-shared.h:46:5: note: previous declaration of ‘memfd_create’ was here
|  int memfd_create (const char *__name, unsigned int __flags) __THROW;
|      ^~~~~~~~~~~~
| /home/abhiarora/iohertz/gateway_os/yocto/build/tmp-glibc/work/x86_64-linux/qemu-native/2.10.0-r0/qemu-2.10.0/rules.mak:66: recipe for target 'util/memfd.o' failed

还有这个错误：

| gcc  -c -I. -I../lib -I../../git/lib -isystem/home/abhiarora/iohertz/gateway_os/yocto/build/tmp-glibc/work/x86_64-linux/e2fsprogs-native/1.43.5-r0/recipe-sysroot-native/usr/include -isystem/home/abhiarora/iohertz/gateway_os/yocto/build/tmp-glibc/work/x86_64-linux/e2fsprogs-native/1.43.5-r0/recipe-sysroot-native/usr/include -O2 -pipe  -DHAVE_CONFIG_H -I../../git/debugfs/../e2fsck -DDEBUGFS ../../git/debugfs/quota.c -o quota.o
| ../../git/debugfs/../misc/create_inode.c:406:18: error: conflicting types for ‘copy_file_range’
|  static errcode_t copy_file_range(ext2_filsys fs, int fd, ext2_file_t e2_file,
|                   ^~~~~~~~~~~~~~~
| In file included from ../../git/debugfs/../misc/create_inode.c:19:0:
| /usr/include/unistd.h:1110:9: note: previous declaration of ‘copy_file_range’ was here
|  ssize_t copy_file_range (int __infd, __off64_t *__pinoff,
|          ^~~~~~~~~~~~~~~
| gcc  -c -I. -I../lib -I../../git/lib -isystem/home/abhiarora/iohertz/gateway_os/yocto/build/tmp-glibc/work/x86_64-linux/e2fsprogs-native/1.43.5-r0/recipe-sysroot-native/usr/include -isystem/home/abhiarora/iohertz/gateway_os/yocto/build/tmp-glibc/work/x86_64-linux/e2fsprogs-native/1.43.5-r0/recipe-sysroot-native/usr/include -O2 -pipe  -DHAVE_CONFIG_H -I../../git/debugfs/../e2fsck -DDEBUGFS ../../git/debugfs/xattrs.c -o xattrs.o
| Makefile:422: recipe for target 'create_inode.o' failed
| make[2]: *** [create_inode.o] Error 1
| make[2]: *** Waiting for unfinished jobs....

失败的packages/tasks：

e2fsprogs_1.43.5
qemu_2.10.0

有人可以帮助我吗？我无法切换到 ubuntu 16.04，但我认为它也应该适用于我的系统。

Answer 1

这是 Toradex 的一个已知问题，在路线图上，参见问题 #36657。

修复已经在上游层中，我们已经更新了 BSP 存储库。您可以使用 LinuxImageV2.7-integration 分支尝试此分支。

"Static declaration of ‘memfd_create’ follows non-static declaration" 使用 Yocto 构建 Linux 图像时出错

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