[开发工具] linux驱动开发，vscode环境配置

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[开发工具]linux驱动开发，vscode环境配置

背景

在windows下使用VScode编辑器，源码存放在远程Linux服务器中，编译也在Linux中进行，windows下只编辑+查看。

1 ssh远程登录

先安装ssh插件：Remote-ssh，点击右下角箭头，输入账号密码后ssh登录。
在这里插入图片描述
注意：首次连接极大可能出现连接失败，报timeout的错误，修改下ssh的timeout参数即可

2 ssh免密码登录

把ssh的公钥和私钥放在C:\Users\用户名.ssh下
在这里插入图片描述
也可以创建config文件，为ssh起一个别名，这样就不用记ip地址了。

3 下载安装vscode的插件

Remote-ssh
Arm Assembly
Atom One Dark Theme
Better C++ Syntax
C/C++ Themes
Chinese
Device Tree
Jupyter Keymap
kconfig
LinkerScript
Linux Themes for vscode
One dark pro

Linux远程需要安装的插件

Cmake
Cmake-tools
Clang-Format
Rainbow Brackets
Trailing Spaces
Include Autocomplete
Pylance

4 Linux内核源码显示过滤

因为Linux本身就是可裁剪的，源码可能包含大量的无关内容，比如设备树或defconfig文件，使用显示过滤，直接过滤掉arch/arm/、arch/arm64/boot等无关文件夹，需要啥，显示啥，清爽无比。
在这里插入图片描述

5 Linux 源码宏定义

5.1 创建c_cpp_properties.json，补充宏

Linux本身就是支持裁剪的，大部分源码都使用宏定义进行编译控制，如：

#ifdef CONFIG_MMU
	funA()
#else
	funB()
#endif

而Linux的宏很多都是在arch/arm64/configs/*defconfig文件指定的（实际上每次编译make xxx_defconfig，就是把defconfig文件按照Kconfig的语法重新组织，生成.config文件，再生成auto_config，下次make时会使用auto_config里面的宏）
在这里插入图片描述
同样地，在.vscode/c_cpp_properties.json添加内容：

5.2 将defconfig文件中的定义复制到c_cpp_properties.json

Ctrl+A将defconfig中的全部信息都复制粘贴到c_cpp_properties.json的"defines":后面。
Ctrl+H打开“替换”，选择“正则表达式”
删除掉"#"开头，如：# CONFIG_COMPILE_TEST is not set
```
^#.*  替换为空
```
其中：^是行开头搜索，#是关键字，.是选择后一个字符，*是通配符
直接点击替换，啥都不用输入。
删除"=“xxx” "，如：CONFIG_DEFAULT_TCP_CONG=“cubic” 变成 CONFIG_DEFAULT_TCP_CONG
```
=.*"  与  =.* 都替换为空
```

直接点击替换，啥都不用输入。

为前后加上""：CONFIG_TARGET_XJ3变成"CONFIG_TARGET_XJ3 "
```
查找：^C；替换为："C
```

后面的没办法，只能

$替换为  ",

然后把多余的删掉

删除空白行：
```
^\s*\n
```

其中：^匹配字符串开始；\s匹配空白字符；*匹配前面的子表达式零次或多次；\n匹配换行符

删除掉"=y"：
直接"=y"替换为空
删除掉"既带有CONFIG_，又带有"结尾的"
```
 (?=.*CONFIG_)(?=.*").*
```
“既带有CONFIG_，又带有=的”
(?=.CONFIG_)(?=.=).*

6 Linux 代码自动规范

代码写完后，不符合代码规范？arc lint报错？手动改太慢了？
下载插件：Clang-Format
在kernel目录下创建：.clang-format，复制粘贴如下内容：

# SPDX-License-Identifier: GPL-2.0
#
# clang-format configuration file. Intended for clang-format >= 4.
#
# For more information, see:
#
#   Documentation/process/clang-format.rst
#   https://clang.llvm.org/docs/ClangFormat.html
#   https://clang.llvm.org/docs/ClangFormatStyleOptions.html
#
---
AccessModifierOffset: -4
AlignAfterOpenBracket: Align
AlignConsecutiveAssignments: false
AlignConsecutiveDeclarations: false
#AlignEscapedNewlines: Left # Unknown to clang-format-4.0
AlignOperands: true
AlignTrailingComments: false
AllowAllParametersOfDeclarationOnNextLine: false
AllowShortBlocksOnASingleLine: false
AllowShortCaseLabelsOnASingleLine: false
AllowShortFunctionsOnASingleLine: None
AllowShortIfStatementsOnASingleLine: false
AllowShortLoopsOnASingleLine: false
AlwaysBreakAfterDefinitionReturnType: None
AlwaysBreakAfterReturnType: None
AlwaysBreakBeforeMultilineStrings: false
AlwaysBreakTemplateDeclarations: false
BinPackArguments: true
BinPackParameters: true
BraceWrapping:
  AfterClass: false
  AfterControlStatement: false
  AfterEnum: false
  AfterFunction: true
  AfterNamespace: true
  AfterObjCDeclaration: false
  AfterStruct: false
  AfterUnion: false
  #AfterExternBlock: false # Unknown to clang-format-5.0
  BeforeCatch: false
  BeforeElse: false
  IndentBraces: false
  #SplitEmptyFunction: true # Unknown to clang-format-4.0
  #SplitEmptyRecord: true # Unknown to clang-format-4.0
  #SplitEmptyNamespace: true # Unknown to clang-format-4.0
BreakBeforeBinaryOperators: None
BreakBeforeBraces: Custom
#BreakBeforeInheritanceComma: false # Unknown to clang-format-4.0
BreakBeforeTernaryOperators: false
BreakConstructorInitializersBeforeComma: false
#BreakConstructorInitializers: BeforeComma # Unknown to clang-format-4.0
BreakAfterJavaFieldAnnotations: false
BreakStringLiterals: false
ColumnLimit: 85
CommentPragmas: '^ IWYU pragma:'
#CompactNamespaces: false # Unknown to clang-format-4.0
ConstructorInitializerAllOnOneLineOrOnePerLine: false
ConstructorInitializerIndentWidth: 8
ContinuationIndentWidth: 8
Cpp11BracedListStyle: false
DerivePointerAlignment: false
DisableFormat: false
ExperimentalAutoDetectBinPacking: false
#FixNamespaceComments: false # Unknown to clang-format-4.0

# Taken from:
#   git grep -h '^#define [^[:space:]]*for_each[^[:space:]]*(' include/ \
#   | sed "s,^#define \([^[:space:]]*for_each[^[:space:]]*\)(.*$,  - '\1'," \
#   | sort | uniq
ForEachMacros:
  - 'apei_estatus_for_each_section'
  - 'ata_for_each_dev'
  - 'ata_for_each_link'
  - 'ax25_for_each'
  - 'ax25_uid_for_each'
  - 'bio_for_each_integrity_vec'
  - '__bio_for_each_segment'
  - 'bio_for_each_segment'
  - 'bio_for_each_segment_all'
  - 'bio_list_for_each'
  - 'bip_for_each_vec'
  - 'blkg_for_each_descendant_post'
  - 'blkg_for_each_descendant_pre'
  - 'blk_queue_for_each_rl'
  - 'bond_for_each_slave'
  - 'bond_for_each_slave_rcu'
  - 'btree_for_each_safe128'
  - 'btree_for_each_safe32'
  - 'btree_for_each_safe64'
  - 'btree_for_each_safel'
  - 'card_for_each_dev'
  - 'cgroup_taskset_for_each'
  - 'cgroup_taskset_for_each_leader'
  - 'cpufreq_for_each_entry'
  - 'cpufreq_for_each_entry_idx'
  - 'cpufreq_for_each_valid_entry'
  - 'cpufreq_for_each_valid_entry_idx'
  - 'css_for_each_child'
  - 'css_for_each_descendant_post'
  - 'css_for_each_descendant_pre'
  - 'device_for_each_child_node'
  - 'drm_atomic_crtc_for_each_plane'
  - 'drm_atomic_crtc_state_for_each_plane'
  - 'drm_atomic_crtc_state_for_each_plane_state'
  - 'drm_for_each_connector_iter'
  - 'drm_for_each_crtc'
  - 'drm_for_each_encoder'
  - 'drm_for_each_encoder_mask'
  - 'drm_for_each_fb'
  - 'drm_for_each_legacy_plane'
  - 'drm_for_each_plane'
  - 'drm_for_each_plane_mask'
  - 'drm_mm_for_each_hole'
  - 'drm_mm_for_each_node'
  - 'drm_mm_for_each_node_in_range'
  - 'drm_mm_for_each_node_safe'
  - 'for_each_active_drhd_unit'
  - 'for_each_active_iommu'
  - 'for_each_available_child_of_node'
  - 'for_each_bio'
  - 'for_each_board_func_rsrc'
  - 'for_each_bvec'
  - 'for_each_child_of_node'
  - 'for_each_clear_bit'
  - 'for_each_clear_bit_from'
  - 'for_each_cmsghdr'
  - 'for_each_compatible_node'
  - 'for_each_console'
  - 'for_each_cpu'
  - 'for_each_cpu_and'
  - 'for_each_cpu_not'
  - 'for_each_cpu_wrap'
  - 'for_each_dev_addr'
  - 'for_each_dma_cap_mask'
  - 'for_each_drhd_unit'
  - 'for_each_dss_dev'
  - 'for_each_efi_memory_desc'
  - 'for_each_efi_memory_desc_in_map'
  - 'for_each_endpoint_of_node'
  - 'for_each_evictable_lru'
  - 'for_each_fib6_node_rt_rcu'
  - 'for_each_fib6_walker_rt'
  - 'for_each_free_mem_range'
  - 'for_each_free_mem_range_reverse'
  - 'for_each_func_rsrc'
  - 'for_each_hstate'
  - 'for_each_if'
  - 'for_each_iommu'
  - 'for_each_ip_tunnel_rcu'
  - 'for_each_irq_nr'
  - 'for_each_lru'
  - 'for_each_matching_node'
  - 'for_each_matching_node_and_match'
  - 'for_each_memblock'
  - 'for_each_memblock_type'
  - 'for_each_memcg_cache_index'
  - 'for_each_mem_pfn_range'
  - 'for_each_mem_range'
  - 'for_each_mem_range_rev'
  - 'for_each_migratetype_order'
  - 'for_each_msi_entry'
  - 'for_each_net'
  - 'for_each_netdev'
  - 'for_each_netdev_continue'
  - 'for_each_netdev_continue_rcu'
  - 'for_each_netdev_feature'
  - 'for_each_netdev_in_bond_rcu'
  - 'for_each_netdev_rcu'
  - 'for_each_netdev_reverse'
  - 'for_each_netdev_safe'
  - 'for_each_net_rcu'
  - 'for_each_new_connector_in_state'
  - 'for_each_new_crtc_in_state'
  - 'for_each_new_plane_in_state'
  - 'for_each_new_private_obj_in_state'
  - 'for_each_node'
  - 'for_each_node_by_name'
  - 'for_each_node_by_type'
  - 'for_each_node_mask'
  - 'for_each_node_state'
  - 'for_each_node_with_cpus'
  - 'for_each_node_with_property'
  - 'for_each_of_allnodes'
  - 'for_each_of_allnodes_from'
  - 'for_each_of_pci_range'
  - 'for_each_old_connector_in_state'
  - 'for_each_old_crtc_in_state'
  - 'for_each_oldnew_connector_in_state'
  - 'for_each_oldnew_crtc_in_state'
  - 'for_each_oldnew_plane_in_state'
  - 'for_each_oldnew_private_obj_in_state'
  - 'for_each_old_plane_in_state'
  - 'for_each_old_private_obj_in_state'
  - 'for_each_online_cpu'
  - 'for_each_online_node'
  - 'for_each_online_pgdat'
  - 'for_each_pci_bridge'
  - 'for_each_pci_dev'
  - 'for_each_pci_msi_entry'
  - 'for_each_populated_zone'
  - 'for_each_possible_cpu'
  - 'for_each_present_cpu'
  - 'for_each_prime_number'
  - 'for_each_prime_number_from'
  - 'for_each_process'
  - 'for_each_process_thread'
  - 'for_each_property_of_node'
  - 'for_each_reserved_mem_region'
  - 'for_each_resv_unavail_range'
  - 'for_each_rtdcom'
  - 'for_each_rtdcom_safe'
  - 'for_each_set_bit'
  - 'for_each_set_bit_from'
  - 'for_each_sg'
  - 'for_each_sg_page'
  - '__for_each_thread'
  - 'for_each_thread'
  - 'for_each_zone'
  - 'for_each_zone_zonelist'
  - 'for_each_zone_zonelist_nodemask'
  - 'fwnode_for_each_available_child_node'
  - 'fwnode_for_each_child_node'
  - 'fwnode_graph_for_each_endpoint'
  - 'gadget_for_each_ep'
  - 'hash_for_each'
  - 'hash_for_each_possible'
  - 'hash_for_each_possible_rcu'
  - 'hash_for_each_possible_rcu_notrace'
  - 'hash_for_each_possible_safe'
  - 'hash_for_each_rcu'
  - 'hash_for_each_safe'
  - 'hctx_for_each_ctx'
  - 'hlist_bl_for_each_entry'
  - 'hlist_bl_for_each_entry_rcu'
  - 'hlist_bl_for_each_entry_safe'
  - 'hlist_for_each'
  - 'hlist_for_each_entry'
  - 'hlist_for_each_entry_continue'
  - 'hlist_for_each_entry_continue_rcu'
  - 'hlist_for_each_entry_continue_rcu_bh'
  - 'hlist_for_each_entry_from'
  - 'hlist_for_each_entry_from_rcu'
  - 'hlist_for_each_entry_rcu'
  - 'hlist_for_each_entry_rcu_bh'
  - 'hlist_for_each_entry_rcu_notrace'
  - 'hlist_for_each_entry_safe'
  - '__hlist_for_each_rcu'
  - 'hlist_for_each_safe'
  - 'hlist_nulls_for_each_entry'
  - 'hlist_nulls_for_each_entry_from'
  - 'hlist_nulls_for_each_entry_rcu'
  - 'hlist_nulls_for_each_entry_safe'
  - 'ide_host_for_each_port'
  - 'ide_port_for_each_dev'
  - 'ide_port_for_each_present_dev'
  - 'idr_for_each_entry'
  - 'idr_for_each_entry_continue'
  - 'idr_for_each_entry_ul'
  - 'inet_bind_bucket_for_each'
  - 'inet_lhash2_for_each_icsk_rcu'
  - 'iov_for_each'
  - 'key_for_each'
  - 'key_for_each_safe'
  - 'klp_for_each_func'
  - 'klp_for_each_object'
  - 'kvm_for_each_memslot'
  - 'kvm_for_each_vcpu'
  - 'list_for_each'
  - 'list_for_each_entry'
  - 'list_for_each_entry_continue'
  - 'list_for_each_entry_continue_rcu'
  - 'list_for_each_entry_continue_reverse'
  - 'list_for_each_entry_from'
  - 'list_for_each_entry_from_reverse'
  - 'list_for_each_entry_lockless'
  - 'list_for_each_entry_rcu'
  - 'list_for_each_entry_reverse'
  - 'list_for_each_entry_safe'
  - 'list_for_each_entry_safe_continue'
  - 'list_for_each_entry_safe_from'
  - 'list_for_each_entry_safe_reverse'
  - 'list_for_each_prev'
  - 'list_for_each_prev_safe'
  - 'list_for_each_safe'
  - 'llist_for_each'
  - 'llist_for_each_entry'
  - 'llist_for_each_entry_safe'
  - 'llist_for_each_safe'
  - 'media_device_for_each_entity'
  - 'media_device_for_each_intf'
  - 'media_device_for_each_link'
  - 'media_device_for_each_pad'
  - 'netdev_for_each_lower_dev'
  - 'netdev_for_each_lower_private'
  - 'netdev_for_each_lower_private_rcu'
  - 'netdev_for_each_mc_addr'
  - 'netdev_for_each_uc_addr'
  - 'netdev_for_each_upper_dev_rcu'
  - 'netdev_hw_addr_list_for_each'
  - 'nft_rule_for_each_expr'
  - 'nla_for_each_attr'
  - 'nla_for_each_nested'
  - 'nlmsg_for_each_attr'
  - 'nlmsg_for_each_msg'
  - 'nr_neigh_for_each'
  - 'nr_neigh_for_each_safe'
  - 'nr_node_for_each'
  - 'nr_node_for_each_safe'
  - 'of_for_each_phandle'
  - 'of_property_for_each_string'
  - 'of_property_for_each_u32'
  - 'pci_bus_for_each_resource'
  - 'ping_portaddr_for_each_entry'
  - 'plist_for_each'
  - 'plist_for_each_continue'
  - 'plist_for_each_entry'
  - 'plist_for_each_entry_continue'
  - 'plist_for_each_entry_safe'
  - 'plist_for_each_safe'
  - 'pnp_for_each_card'
  - 'pnp_for_each_dev'
  - 'protocol_for_each_card'
  - 'protocol_for_each_dev'
  - 'queue_for_each_hw_ctx'
  - 'radix_tree_for_each_contig'
  - 'radix_tree_for_each_slot'
  - 'radix_tree_for_each_tagged'
  - 'rbtree_postorder_for_each_entry_safe'
  - 'resource_list_for_each_entry'
  - 'resource_list_for_each_entry_safe'
  - 'rhl_for_each_entry_rcu'
  - 'rhl_for_each_rcu'
  - 'rht_for_each'
  - 'rht_for_each_continue'
  - 'rht_for_each_entry'
  - 'rht_for_each_entry_continue'
  - 'rht_for_each_entry_rcu'
  - 'rht_for_each_entry_rcu_continue'
  - 'rht_for_each_entry_safe'
  - 'rht_for_each_rcu'
  - 'rht_for_each_rcu_continue'
  - '__rq_for_each_bio'
  - 'rq_for_each_segment'
  - 'scsi_for_each_prot_sg'
  - 'scsi_for_each_sg'
  - 'sctp_for_each_hentry'
  - 'sctp_skb_for_each'
  - 'shdma_for_each_chan'
  - '__shost_for_each_device'
  - 'shost_for_each_device'
  - 'sk_for_each'
  - 'sk_for_each_bound'
  - 'sk_for_each_entry_offset_rcu'
  - 'sk_for_each_from'
  - 'sk_for_each_rcu'
  - 'sk_for_each_safe'
  - 'sk_nulls_for_each'
  - 'sk_nulls_for_each_from'
  - 'sk_nulls_for_each_rcu'
  - 'snd_pcm_group_for_each_entry'
  - 'snd_soc_dapm_widget_for_each_path'
  - 'snd_soc_dapm_widget_for_each_path_safe'
  - 'snd_soc_dapm_widget_for_each_sink_path'
  - 'snd_soc_dapm_widget_for_each_source_path'
  - 'tb_property_for_each'
  - 'udp_portaddr_for_each_entry'
  - 'udp_portaddr_for_each_entry_rcu'
  - 'usb_hub_for_each_child'
  - 'v4l2_device_for_each_subdev'
  - 'v4l2_m2m_for_each_dst_buf'
  - 'v4l2_m2m_for_each_dst_buf_safe'
  - 'v4l2_m2m_for_each_src_buf'
  - 'v4l2_m2m_for_each_src_buf_safe'
  - 'zorro_for_each_dev'

#IncludeBlocks: Preserve # Unknown to clang-format-5.0
IncludeCategories:
  - Regex: '.*'
    Priority: 1
IncludeIsMainRegex: '(Test)?$'
IndentCaseLabels: false
#IndentPPDirectives: None # Unknown to clang-format-5.0
IndentWidth: 8
IndentWrappedFunctionNames: false
JavaScriptQuotes: Leave
JavaScriptWrapImports: true
KeepEmptyLinesAtTheStartOfBlocks: false
MacroBlockBegin: ''
MacroBlockEnd: ''
MaxEmptyLinesToKeep: 1
NamespaceIndentation: Inner
#ObjCBinPackProtocolList: Auto # Unknown to clang-format-5.0
ObjCBlockIndentWidth: 8
ObjCSpaceAfterProperty: true
ObjCSpaceBeforeProtocolList: true

# Taken from git's rules
#PenaltyBreakAssignment: 10 # Unknown to clang-format-4.0
PenaltyBreakBeforeFirstCallParameter: 30
PenaltyBreakComment: 10
PenaltyBreakFirstLessLess: 0
PenaltyBreakString: 10
PenaltyExcessCharacter: 100
PenaltyReturnTypeOnItsOwnLine: 60

PointerAlignment: Right
ReflowComments: false
SortIncludes: false
#SortUsingDeclarations: false # Unknown to clang-format-4.0
SpaceAfterCStyleCast: false
SpaceAfterTemplateKeyword: true
SpaceBeforeAssignmentOperators: true
#SpaceBeforeCtorInitializerColon: true # Unknown to clang-format-5.0
#SpaceBeforeInheritanceColon: true # Unknown to clang-format-5.0
SpaceBeforeParens: ControlStatements
#SpaceBeforeRangeBasedForLoopColon: true # Unknown to clang-format-5.0
SpaceInEmptyParentheses: false
SpacesBeforeTrailingComments: 1
SpacesInAngles: false
SpacesInContainerLiterals: false
SpacesInCStyleCastParentheses: false
SpacesInParentheses: false
SpacesInSquareBrackets: false
Standard: Cpp03
TabWidth: 8
UseTab: Always