SourceMaps stopped working for bazel-built processes on version 1.11.2 and 1.11.3

[dpar39]

OS: Ubuntu
VSCode version: 1.96.4
CodeLLDB version: 1.11.2
Compiler: clang 14
Debuggee: ELF x64 binaries on Linux with glibc 2.35

When debugging our bazel targets, in version 1.11.2 (or 1.11.3), our sourceMap from "/proc/self/cwd" to "${workspaceFolder:code_root_folder}" stopped working meaning that breakpoints are no longer hit. The same configuration works with version 1.11.1 and older. Seems some regression was introduced in 1.11.2, but I can't quite put my finger on it looking at v1.11.1...v1.11.2

UPDATE: It seems to affect only requests of type "attach". "launch" configurations are not affected by the regression.

[dpar39]

Here's my bet on where the problem could be: v1.11.1...v1.11.2#diff-14b183725ee1b7204a41e6600c42c555845df6c5e7ead8bc4705c96c26bc4f90R278

[dpar39]

Changing the lldb library didn't make a difference, so it points the problem is somewhere in the adapter.
1.11.1 with lldb.library pointing to ~/.vscode-server/extensions/vadimcn.vscode-lldb-1.11.2/lldb/lib/liblldb.so works, but 1.11.2 pointing to ~/.vscode-server/extensions/vadimcn.vscode-lldb-1.11.1/lldb/lib/liblldb.so does not!

I also tried dumping the merged object in mergeWorkspaceSettings() and the sourceMap looks correct. Adding it to "lldb.launch.sourceMap" didn't make a difference either as expected.

[vadimcn]

... our sourceMap from "/proc/self/cwd" to "${workspaceFolder:code_root_folder}" ...

I'm not familiar with this syntax. Did you mean ${workspaceFolder}/code_root_folder?

Try dumping the effective source map via settings show target.source-map.
Also, seeing a verbose log would be helpful...

[dpar39]

setttings show target.source-map shows empty in the debugger console using 1.11.2 or 1.11.3:

target.source-map (path-map) =

in 1.11.1 I get (somewhat redacted):

target.source-map (path-map) =
[0] "/proc/self/cwd" -> "/home/user/project"

Here's some more information. Adding settings set target.source-map /proc/self/cwd /home/user/project to my init commands did not work either nor it it worked adding it in the debugger console once the code stopped on a SIGABRT.

Regarding the "${workspaceFolder:<folder-name>}", this is used to refer to a specific folder in a multi-root workspace. Read https://code.visualstudio.com/docs/editor/variables-reference#_variables-scoped-per-workspace-folder for more information.

[dpar39]

Regarding the logging information, here's the relevant part (again with some paths redacted) which shows that it can't resolve breakpoints:

Platform: linux x64
Initial debug configuration: {
  name: 'python lldb attach',
  type: 'lldb',
  request: 'attach',
  pathMappings: null,
  connect: null,
  sourceMap: { '/proc/self/cwd': '${workspaceFolder:code_root_folder}' },
  pid: '306427',
  initCommands: [
    'settings set target.process.stop-on-exec false',
    'settings set target.process.follow-fork-mode child',
    'pro hand -p true -s false SIGWINCH'
  ]
}
Resolved debug configuration: {
  name: 'python lldb attach',
  type: 'lldb',
  request: 'attach',
  pathMappings: null,
  connect: null,
  sourceMap: { '/proc/self/cwd': '${workspaceFolder:code_root_folder}' },
  pid: '306427',
  initCommands: [
    'settings set target.process.stop-on-exec false',
    'settings set target.process.follow-fork-mode child',
    'pro hand -p true -s false SIGWINCH'
  ],
  relativePathBase: '/home/user/project',
  _adapterSettings: {
    displayFormat: 'auto',
    showDisassembly: 'auto',
    dereferencePointers: true,
    suppressMissingSourceFiles: true,
    evaluationTimeout: 5,
    consoleMode: 'commands',
    sourceLanguages: null,
    scriptConfig: {},
    terminalPromptClear: null,
    evaluateForHovers: true,
    commandCompletions: true,
    reproducer: false
  }
}
Launching adapter
liblldb: /home/user/.vscode-server/extensions/vadimcn.vscode-lldb-1.11.3/lldb/lib/liblldb.so
environment: {}
settings: { evaluateForHovers: true, commandCompletions: true }
[DEBUG codelldb] Connecting to 127.0.0.1:39969
[DEBUG codelldb] New debug session
[DEBUG codelldb::dap_codec] --> {"command":"initialize","arguments":{"clientID":"vscode","clientName":"Visual Studio Code","adapterID":"lldb","pathFormat":"path","linesStartAt1":true,"columnsStartAt1":true,"supportsVariableType":true,"supportsVariablePaging":true,"supportsRunInTerminalRequest":true,"locale":"en","supportsProgressReporting":true,"supportsInvalidatedEvent":true,"supportsMemoryReferences":true,"supportsArgsCanBeInterpretedByShell":true,"supportsMemoryEvent":true,"supportsStartDebuggingRequest":true,"supportsANSIStyling":true},"type":"request","seq":1}
[DEBUG codelldb::dap_codec] <-- {"seq":1,"type":"response","request_seq":1,"success":true,"command":"initialize","body":{"exceptionBreakpointFilters":[{"default":true,"filter":"cpp_throw","label":"C++: on throw","supportsCondition":true},{"default":false,"filter":"cpp_catch","label":"C++: on catch","supportsCondition":true}],"supportTerminateDebuggee":true,"supportsCancelRequest":true,"supportsClipboardContext":true,"supportsCompletionsRequest":true,"supportsConditionalBreakpoints":true,"supportsConfigurationDoneRequest":true,"supportsDataBreakpointBytes":true,"supportsDataBreakpoints":true,"supportsDelayedStackTraceLoading":true,"supportsDisassembleRequest":true,"supportsEvaluateForHovers":true,"supportsExceptionFilterOptions":true,"supportsExceptionInfoRequest":true,"supportsFunctionBreakpoints":true,"supportsGotoTargetsRequest":true,"supportsHitConditionalBreakpoints":true,"supportsInstructionBreakpoints":true,"supportsLogPoints":true,"supportsModulesRequest":true,"supportsReadMemoryRequest":true,"supportsRestartRequest":true,"supportsSetVariable":true,"supportsStepInTargetsRequest":true,"supportsSteppingGranularity":true,"supportsWriteMemoryRequest":true}}
[DEBUG codelldb::dap_codec] --> {"command":"attach","arguments":{"name":"python lldb attach","type":"lldb","request":"attach","pathMappings":null,"connect":null,"sourceMap":{"/proc/self/cwd":"/home/user/project"},"pid":"306427","initCommands":["settings set target.process.stop-on-exec false","settings set target.process.follow-fork-mode child","pro hand -p true -s false SIGWINCH"],"relativePathBase":"/home/user/project","_adapterSettings":{"displayFormat":"auto","showDisassembly":"auto","dereferencePointers":true,"suppressMissingSourceFiles":true,"evaluationTimeout":5,"consoleMode":"commands","sourceLanguages":null,"scriptConfig":{},"terminalPromptClear":null,"evaluateForHovers":true,"commandCompletions":true,"reproducer":false},"__sessionId":"3ede3118-6a6c-4736-9ded-be6c11415076"},"type":"request","seq":2}
[INFO  codelldb::debug_session::launch] Set target.source-map args: "/proc/self/cwd" "/home/user/project" 
[DEBUG codelldb::dap_codec] <-- {"seq":2,"type":"event","event":"output","body":{"category":"console","output":"Console is in 'commands' mode, prefix expressions with '?'.\n"}}
[DEBUG codelldb::debug_session] settings set target.process.stop-on-exec false -> SuccessFinishResult, Error:  Success
[DEBUG codelldb::dap_codec] <-- {"seq":3,"type":"event","event":"output","body":{"category":"console","output":"Executing script: initCommands\n"}}
[DEBUG codelldb::debug_session] settings set target.process.follow-fork-mode child -> SuccessFinishResult, Error:  Success
[DEBUG codelldb::debug_session] pro hand -p true -s false SIGWINCH -> SuccessFinishResult, Error:  Success
    Output Message:
    NAME         PASS     STOP     NOTIFY
    ===========  =======  =======  =======
    SIGWINCH     true     false    not set
    
[DEBUG codelldb::dap_codec] <-- {"seq":4,"type":"event","event":"output","body":{"category":"console","output":"NAME         PASS     STOP     NOTIFY\n===========  =======  =======  =======\nSIGWINCH     true     false    not set\n\n"}}
INFO(Python) 08:52:24 lang_support: languages: set()
[DEBUG codelldb::dap_codec] <-- {"seq":5,"type":"event","event":"initialized"}
[DEBUG codelldb::dap_codec] --> {"command":"setBreakpoints","arguments":{"source":{"name":"somefile.cc","path":"/home/user/project/somefile.cc"},"lines":[27],"breakpoints":[{"line":27}],"sourceModified":false},"type":"request","seq":3}
[DEBUG codelldb::dap_codec] <-- {"seq":6,"type":"response","request_seq":3,"success":true,"command":"setBreakpoints","body":{"breakpoints":[{"id":1,"message":"Resolved locations: 0","verified":false}]}}
[DEBUG codelldb::dap_codec] --> {"command":"setFunctionBreakpoints","arguments":{"breakpoints":[]},"type":"request","seq":4}
[DEBUG codelldb::dap_codec] --> {"command":"setInstructionBreakpoints","arguments":{"breakpoints":[]},"type":"request","seq":5}
[DEBUG codelldb::dap_codec] --> {"command":"setExceptionBreakpoints","arguments":{"filters":[],"filterOptions":[]},"type":"request","seq":6}
[DEBUG codelldb::dap_codec] --> {"command":"setDataBreakpoints","arguments":{"breakpoints":[]},"type":"request","seq":7}
[DEBUG codelldb::dap_codec] <-- {"seq":7,"type":"response","request_seq":4,"success":true,"command":"setFunctionBreakpoints","body":{"breakpoints":[]}}
[DEBUG codelldb::dap_codec] <-- {"seq":8,"type":"response","request_seq":5,"success":true,"command":"setInstructionBreakpoints","body":{"breakpoints":[]}}
[DEBUG codelldb::dap_codec] <-- {"seq":9,"type":"response","request_seq":6,"success":true,"command":"setExceptionBreakpoints"}
[DEBUG codelldb::dap_codec] <-- {"seq":10,"type":"response","request_seq":7,"success":true,"command":"setDataBreakpoints","body":{"breakpoints":[]}}
[DEBUG codelldb::dap_codec] --> {"command":"configurationDone","type":"request","seq":8}
[DEBUG codelldb::dap_codec] <-- {"seq":11,"type":"event","event":"output","body":{"category":"console","output":"Attached to process 306427\n"}}
[DEBUG codelldb::dap_codec] <-- {"seq":12,"type":"response","request_seq":2,"success":true,"command":"attach"}
[DEBUG codelldb::debug_session] Debug event: 0x7f9cd008f990 Event: broadcaster = 0x555cffb541a8 (lldb.process), type = 0x00000001 (state-changed), data = { process = 0x555cffb54170 (pid = 306427), state = running}
[DEBUG codelldb::dap_codec] <-- {"seq":13,"type":"response","request_seq":8,"success":true,"command":"configurationDone"}
[DEBUG codelldb::dap_codec] <-- {"seq":14,"type":"event","event":"continued","body":{"allThreadsContinued":true,"threadId":306427}}
[DEBUG codelldb::dap_codec] --> {"command":"threads","type":"request","seq":9}
[DEBUG codelldb::dap_codec] <-- {"seq":15,"type":"response","request_seq":9,"success":true,"command":"threads","body":{"threads":[{"id":306427,"name":"1: tid=306427"},{"id":306483,"name":"2: tid=306483"},{"id":306484,"name":"3: tid=306484"},{"id":306486,"name":"4: tid=306486"},{"id":306487,"name":"5: tid=306487"}]}}

[vadimcn]

I can't reproduce your problem. The following config works for me:

{
	"name": "Attach by pid",
	"type": "lldb",
	"request": "attach",
	"sourceMap": { "/proc/self/cwd": "${workspaceFolder}" },
	"pid": 2515521
}

After attaching the source map is set as expected.

Can you try a similar simple config on your end?

[Penguinang]

I find this problem on v1.11.3 too: source-map in settings.json is not working(after launching, I typed 'settings show target.source-map' dumps empty).
After downgrading to v1.11.2, the problem does reproduce.
After downgrading to v1.11.1, the problem does not reproduce.
And I'm not using bazel

[vadimcn]

@Penguinang can you share your launch configuration? Or, better yet, a verbose log?