[all-commits] [llvm/llvm-project] 8c56e7: [lldb-dap] Add support for data breakpoint. (#81541)

[Zequan Wu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8c56e78ec531f0e2460213c20fff869b6b7add99
      https://github.com/llvm/llvm-project/commit/8c56e78ec531f0e2460213c20fff869b6b7add99
  Author: Zequan Wu <zequanwu at google.com>
  Date:   2024-02-13 (Tue, 13 Feb 2024)

  Changed paths:
    M lldb/packages/Python/lldbsuite/test/tools/lldb-dap/dap_server.py
    A lldb/test/API/tools/lldb-dap/databreakpoint/Makefile
    A lldb/test/API/tools/lldb-dap/databreakpoint/TestDAP_setDataBreakpoints.py
    A lldb/test/API/tools/lldb-dap/databreakpoint/main.cpp
    M lldb/tools/lldb-dap/CMakeLists.txt
    M lldb/tools/lldb-dap/DAPForward.h
    A lldb/tools/lldb-dap/Watchpoint.cpp
    A lldb/tools/lldb-dap/Watchpoint.h
    M lldb/tools/lldb-dap/lldb-dap.cpp
    M llvm/utils/gn/secondary/lldb/tools/lldb-dap/BUILD.gn

  Log Message:
  -----------
  [lldb-dap] Add support for data breakpoint. (#81541)

This implements functionality to handle `DataBreakpointInfo` request and
`SetDataBreakpoints` request.

If variablesReference is 0 or not provided, interpret name as ${number
of bytes}@${expression} to set data breakpoint at the given expression
because the spec
https://microsoft.github.io/debug-adapter-protocol/specification#Requests_DataBreakpointInfo
doesn't say how the client could specify the number of bytes to watch.

This is based on top of https://github.com/llvm/llvm-project/pull/80753.