Disassembly View: wrong current instruction and wrong address in breakpoint command sent to GDB

Environment

• OS and version: Windows 11 22631.4460
• VS Code: 1.95.3
• C/C++ extension: v1.22.11
• OS and version of remote machine (if applicable): none
• GDB / LLDB version: GDB 15.2 from MSYS2 mingw-w64-ucrt-x86_64-gdb-multiarch

Bug Summary and Steps to Reproduce

Referencing the screenshots below:

• the 0x1b6 breakpoint was created via the disassembly view, by clicking on the 0x1b6 row which I wanted to break on
• T1: after restarting the target, the disassembly view shows the breakpoint bound to 0x00000142 instead
  • notice the logs showing it indeed sent a GDB command to bind to 0x142 (322 decimal)
• T1: pc register shows that GDB indeed halted on 0x142, but the disassembly shows the current instruction to be 0x000001a8
• T2: after stepping over once, the disassembly view changes to 64bit long addresses and does not show the disassembled instructions
  • note how the current instruction address now matches the pc register
  • this happens quite often and seems to be consistent based on the instructions being debugged

Screenshot T1

Screenshot T2

I am developing for CH32V003 RISC-V 32bit MCU, using:

• custom built GCC 14.2 rv32ec-ilp32e (riscv32-unknown-elf) in MSYS2 UCRT64 from https://github.com/riscv-collab/riscv-gnu-toolchain
• gdb-multiarch from MSYS2 package mingw-w64-ucrt-x86_64-gdb-multiarch 15.2-2
• minichlink.exe from https://github.com/cnlohr/ch32v003fun/tree/1ea96b14248628a209816963821b088dc8ecf506/minichlink as a GDB debug server

Debugger Configurations

launch.json:
{
    "name": "Launch (minichlink)",
    "type": "cppdbg",
    "request": "launch",
    "cwd": "${workspaceFolder}",
    "program": "${workspaceRoot}/build/firmware.elf",
    // "stopAtEntry": true,
    "debugServerPath": "${workspaceFolder}/minichlink.exe",
    "debugServerArgs": "-aG",
    "MIMode": "gdb",
    "miDebuggerPath": "E:/msys64/ucrt64/bin/gdb-multiarch.exe",
    "miDebuggerServerAddress": "localhost:2000",
    "setupCommands": [
        {
            "text": "-enable-pretty-printing",
            "ignoreFailures": true,
        },
    ],
    "svdPath": "${workspaceFolder}/CH32V003xx.svd",
    "logging": {
        "engineLogging": true,
        "trace": true,
        "traceResponse": true
    }
}

Debugger Logs

https://pastebin.com/gUCjBxwv

Other Extensions

Cortex-Debug and other related extensions are installed, but disabling all of them does not make a difference.

Additional Information

No response

Inizia riproducendo il problema con la configurazione launch.json fornita ed esamina i log del motore GDB collegati nel report. Confronta l’indirizzo del breakpoint, il registro pc, l’istruzione corrente e il disassemblato dopo l’esecuzione passo-passo; il lavoro è completato quando l’indirizzo richiesto viene inviato a GDB e il disassemblato rimane corretto e valorizzato.