commit d4b0619012c46f9ed357cffaa7e70f98cbb468f1
author Wenlong Mu <muwl182@163.com> Wed Jul 19 18:59:14 2023
committer GitHub <noreply@github.com> Wed Jul 19 18:59:14 2023
tree f31193728b7888c9f3b4134916f2e932f5cef98b
parent 639c6233cd5f66b2386df76e250569205bf2db44

i#725: Re-expose the Windows detach in drconfig (#6205)

The old way to trigger detach on the Windows platform is the
no-longer-supported "drcontrol" front-end.
Re-exposing the detach feature in drconfig front-end on the Windows
platform.

The following briefly describes my manual testing process, and I'll
continue to submit an automated testing tool in a new PR soon.


I wrote my own continuously running example as a manual test case for
DynamoRIO, which counts the time of summing the first 1 billion numbers
in real time. I'd like to use the real-time output of the test case to
present the running state of the program.
```
#include <iostream>
#include <chrono>
#define LOOPCOUNT 100000;
// Function to perform a computationally intensive task
void performTask()
{
    //calculate the sum of the first 1 billion numbers
    long long unsigned sum = 0;
    for (int i = 1; i <= 1000000000; ++i)
    {
            sum += i;
    }
    std::cout << "The sum of the first 1 billion numbers: " << sum << std::endl;
}
void single_loop() {
    // Start the timer
    auto start = std::chrono::high_resolution_clock::now();
    // Perform the computationally intensive task
    performTask();
    // Stop the timer
    auto end = std::chrono::high_resolution_clock::now();
    // Calculate the elapsed time
    auto duration = std::chrono::duration_cast<std::chrono::milliseconds>(end - start);
    // Print the elapsed time
    std::cout << "Elapsed time: " << duration.count() << " milliseconds" << std::endl;
}
int main()
{
    int counts = LOOPCOUNT;
    for (int i = 0; i < counts;i++)
    {
        single_loop();
    }
    return 0;
}
```
Here are the steps to perform a manual test：

1. Execute our test case: ./SumOneBillion.exe
2. Use the "ps" command to get the target process ID: ps | grep
SumOneBillion
3. Use "-attach" option to instrument the target process ID： .\drrun.exe
-attach pid -c64 D:\dynamorio\build_debug\api\bin\inscount.dll
4. Use "-detach" option to stop the instrumentation：.\drconfig.exe
-detach pid

The output of the test case and the DynamoRIO in debug version is like
following.


> The sum of the first 1 billion numbers: 500000000500000000
> Elapsed time: 192 milliseconds
> The sum of the first 1 billion numbers: 500000000500000000
> Elapsed time: 191 milliseconds
> The sum of the first 1 billion numbers: 500000000500000000
> Elapsed time: 191 milliseconds
**> <Starting application
D:\vs_demos_repos\SumOneBillion\x64\Release\SumOneBillion.exe (16300)>
> <cannot remove dll from rbtree: at root/min + can't find real tree>
> <Running on newer-than-this-build "Microsoft Windows 10-2009 x64">
> <Early threads found>
> <Initial options = -no_dynamic_options -client_lib
'D:\dynamorio\build_debug\api\bin\inscount.dll;0;' -client_lib64
'D:\dynamorio\build_debug\api\bin\inscount.dll;0;' -code_api -probe_api
-stack_size 56K -max_elide_jmp 0 -max_elide_call 0
-no_inline_ignored_syscalls -native_exec_default_list ''
-no_native_exec_managed_code -skip_terminating_threads
-no_indcall2direct >
> Client inscount is running**
> <CURIOSITY : instr_get_opcode(instr_new) !=
instr_get_opcode(instr_old) in file
D:\DynamoRIODetach\dynamorio-master\core\win32\callback.c line 2079
> version 9.93.19549, custom build
> -no_dynamic_options -client_lib
'D:\dynamorio\build_debug\api\bin\inscount.dll;0;' -client_lib64
'D:\dynamorio\build_debug\api\bin\inscount.dll;0;' -code_api -probe_api
-stack_size 56K -max_elide_jmp 0 -max_elide_call 0
-no_inline_ignored_syscalls -native_exec_default_list ''
> D:\dynamorio\build_debug\lib64\debug\dynamorio.dll=0x0000000015000000
> D:\dynamorio\build_debug\api\bin\inscount.dll=0x00007ff721f90000
> C:\WINDOWS/system32/KERNEL32.dll=0x0000026257e00000
> C:\WINDOWS/system32/KERNELBASE.dll=0x0000026257f40000
> D:\dynamorio\build_debug\ext\lib64\debug/drmgr.dll=0x00007ff721ff0000>
> <CURIOSITY : instr_new == instrlist_first(ilist) || instr_new ==
instr_get_next(instrlist_first(ilist)) in file
D:\dynamorio\core\win32\callback.c line 2082
> version 9.93.19549, custom build
> -no_dynamic_options -client_lib
'D:\dynamorio\build_debug\api\bin\inscount.dll;0;' -client_lib64
'D:\dynamorio\build_debug\api\bin\inscount.dll;0;' -code_api -probe_api
-stack_size 56K -max_elide_jmp 0 -max_elide_call 0
-no_inline_ignored_syscalls -native_exec_default_list ''
> D:\dynamorio\build_debug\lib64\debug\dynamorio.dll=0x0000000015000000
> D:\dynamorio\build_debug\api\bin\inscount.dll=0x00007ff721f90000
> C:\WINDOWS/system32/KERNEL32.dll=0x0000026257e00000
> C:\WINDOWS/system32/KERNELBASE.dll=0x0000026257f40000
> D:\dynamorio\build_debug\ext\lib64\debug/drmgr.dll=0x00007ff721ff0000>
> <Cleaning hooked Nt wrapper @0x00007ffeba790800 sysnum=0x1c2>
> The sum of the first 1 billion numbers: 500000000500000000
> Elapsed time: 417 milliseconds
> The sum of the first 1 billion numbers: 500000000500000000
> Elapsed time: 552 milliseconds
> The sum of the first 1 billion numbers: 500000000500000000
> Elapsed time: 545 milliseconds
> The sum of the first 1 billion numbers: 500000000500000000
> Elapsed time: 537 milliseconds
> The sum of the first 1 billion numbers: 500000000500000000
> Elapsed time: 543 milliseconds
> The sum of the first 1 billion numbers: 500000000500000000
> Elapsed time: 539 milliseconds
> The sum of the first 1 billion numbers: 500000000500000000
> Elapsed time: 538 milliseconds
**> <curiosity: rex.w on OPSZ_6_irex10_short4!>
> <received nudge mask=0x4 id=0x00000000 arg=0x0000000000000000>
> <Detaching from application
D:\vs_demos_repos\SumOneBillion\x64\Release\SumOneBillion.exe (16300)>
> <Detaching from process, entering final cleanup>
> Instrumentation results: 20766267822 instructions executed**
> The sum of the first 1 billion numbers: 500000000500000000
> Elapsed time: 194 milliseconds
> The sum of the first 1 billion numbers: 500000000500000000
> Elapsed time: 194 milliseconds
> The sum of the first 1 billion numbers: 500000000500000000
> Elapsed time: 194 milliseconds
> 

Issue: [#725](https://github.com/DynamoRIO/dynamorio/issues/725)