Question

我尝试将gcc设为dump the include paths，我的.clang_complete文件现在看起来像：

-std=gnu89
-nostdinc
-I/usr/src/linux-headers-3.0.0-16-generic/arch/x86/include
-I/lib/modules/3.0.0-16-generic/build/arch/x86/include/generated
-I/lib/modules/3.0.0-16-generic/build/include
-I/lib/modules/3.0.0-16-generic/build/ubuntu/include
-I/usr/lib/gcc/i686-linux-gnu/4.6.1/include
-D__KERNEL__
-DMODULE

但libclang仍然抱怨大量错误＆amp;编辑简单的hello world内核模块时发出警告。

1 /lib/modules/3.0.0-16-generic/build/include/linux/list.h|24 col 42 warning| declaration of 'struct list_head' will not be visible outside of this function
2 /lib/modules/3.0.0-16-generic/build/include/linux/list.h|26 col 6 error| incomplete definition of type 'struct list_head'
3 /lib/modules/3.0.0-16-generic/build/include/linux/list.h|24 col 42 info| forward declaration of 'struct list_head'
4 /lib/modules/3.0.0-16-generic/build/include/linux/list.h|27 col 6 error| incomplete definition of type 'struct list_head'
5 /lib/modules/3.0.0-16-generic/build/include/linux/list.h|24 col 42 info| forward declaration of 'struct list_head'
6 /lib/modules/3.0.0-16-generic/build/include/linux/list.h|37 col 38 warning| declaration of 'struct list_head' will not be visible outside of this function
...

来自struct list_head的{{1}}的定义已包含在<linux/types.h>中。两者都在<linux/list.h>

之内

Answer 1

与clang_complete捆绑在一起的cc_args.py可能对您有用。它应该构建一个有效的.clang_complete文件。不幸的是（我刚试过它，我会尝试修复它），它在这里不起作用（无法创建.clang_complete文件）。

但是，通过调整脚本及其结果，我已经能够生成一个有效的.clang_complete文件：

-D__KERNEL__
-DCONFIG_AS_CFI=1
-DCONFIG_AS_CFI_SIGNAL_FRAME=1
-DCONFIG_AS_CFI_SECTIONS=1
-DCONFIG_AS_FXSAVEQ=1
-nostdinc
-I/usr/lib/gcc/x86_64-unknown-linux-gnu/4.6.3/include
-I/usr/src/linux-3.2.12-1-ARCH/arch/x86/include
-I/usr/src/linux-3.2.12-1-ARCH/arch/x86/include/generated
-I/usr/src/linux-3.2.12-1-ARCH/include
-DMODULE
-DKBUILD_STR(s)=#s
-include /usr/src/linux-3.2.12-1-ARCH/include/linux/kconfig.h

使用此.clang_complete，只剩下一个与__kfree_rcu相关的错误，有关它的更多信息，请参阅：https://lkml.org/lkml/2012/1/12/2

如何为linux内核模块开发配置clang_complete？

1 个答案: