[all-commits] [llvm/llvm-project] 2451cb: [lldb/Reproducers] Intercept the FindProcesses API

[Jonas Devlieghere via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 2451cbf07bbc500718c30a9e9447385f7235707b
      https://github.com/llvm/llvm-project/commit/2451cbf07bbc500718c30a9e9447385f7235707b
  Author: Jonas Devlieghere <jonas at devlieghere.com>
  Date:   2020-03-13 (Fri, 13 Mar 2020)

  Changed paths:
    M lldb/include/lldb/Host/Host.h
    M lldb/include/lldb/Utility/ProcessInfo.h
    M lldb/source/Commands/CommandObjectReproducer.cpp
    M lldb/source/Host/common/Host.cpp
    M lldb/source/Host/linux/Host.cpp
    M lldb/source/Host/macosx/objcxx/Host.mm
    M lldb/source/Host/netbsd/Host.cpp
    M lldb/source/Host/openbsd/Host.cpp
    M lldb/source/Utility/ProcessInfo.cpp
    A lldb/test/API/functionalities/reproducers/attach/Makefile
    A lldb/test/API/functionalities/reproducers/attach/TestReproducerAttach.py
    A lldb/test/API/functionalities/reproducers/attach/main.cpp

  Log Message:
  -----------
  [lldb/Reproducers] Intercept the FindProcesses API

This patch extends the reproducers to intercept calls to FindProcesses.
During capture it serializes the ProcessInstanceInfoList returned by the
API. During replay, it returns the serialized data instead of querying
the host.

The motivation for this patch is supporting the process attach workflow
during replay. Without this change it would incorrectly look for the
inferior on the host during replay and failing if no matching process
was found.

Differential revision: https://reviews.llvm.org/D75877