linux - 编译vmci程序

Question

我正在尝试编译 vmware vmci 示例程序。程序分为两部分

a) 内核模块 b) 示例数据报程序

当我编译该数据报程序时，我收到以下错误:

gcc -I headers_path datagramApp.c
/tmp/cc6KkQ4a.o: In function `main':
datagramApp.c:(.text+0x16c): undefined reference to `VMCI_InitApp'
datagramApp.c:(.text+0x1be): undefined reference to `VMCI_CleanupApp'
/tmp/cc6KkQ4a.o: In function `DoDatagramServer':
datagramApp.c:(.text+0x1e6): undefined reference to `VMCIDatagram_CreateHnd'
datagramApp.c:(.text+0x24f): undefined reference to `VMCIDs_Lookup'
datagramApp.c:(.text+0x2d7): undefined reference to `VMCIResource_AddClientPrivileges'
datagramApp.c:(.text+0x333): undefined reference to `VMCIDs_Register'
datagramApp.c:(.text+0x3bf): undefined reference to `VMCIDatagram_RecvFrom'
datagramApp.c:(.text+0x44f): undefined reference to `VMCIDatagram_SendTo'
datagramApp.c:(.text+0x4a8): undefined reference to `VMCIDs_Unregister'
datagramApp.c:(.text+0x4c0): undefined reference to `VMCIDatagram_DestroyHnd'
/tmp/cc6KkQ4a.o: In function `DoDatagramClient':
datagramApp.c:(.text+0x505): undefined reference to `VMCIDs_Lookup'
datagramApp.c:(.text+0x563): undefined reference to `VMCIDatagram_CreateHnd'
datagramApp.c:(.text+0x608): undefined reference to `VMCIResource_AddClientPrivileges'
datagramApp.c:(.text+0x680): undefined reference to `VMCIDatagram_SendTo'
datagramApp.c:(.text+0x6b8): undefined reference to `VMCIDatagram_RecvFrom'
datagramApp.c:(.text+0x6f7): undefined reference to `VMCIDatagram_DestroyHnd'

TNX

Answer 1

您需要链接一个(共享)对象来获取 VMCI 的用户层接口(interface)

AFAICT 这是来自 Vmware(?) 的专有 API，您应该安装 [1]

典型的编译行看起来更像是:

gcc -I <headers_path> datagramApp.c -lvmci

注释

• 将 header_path 替换为类似的内容(取决于模块的构建位置)
  • /usr/src/linux/include
  • /opt/vmware/include
• -lvmci 会建议您的库路径中存在 libvmci.so(记住 sudo ldconfig -a，可以选择包含 -L/path/to/libs 以便让 gcc/ld 找到)它们

[1] 或许作为 Custom Installation of VMware Tools 的一部分？