[lldb-dev] [Bug 28858] New: LLDB-MI: no notification about process stopped if attaching to a process

[via lldb-dev]

https://llvm.org/bugs/show_bug.cgi?id=28858

            Bug ID: 28858
           Summary: LLDB-MI: no notification about process stopped if
                    attaching to a process
           Product: lldb
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: All Bugs
          Assignee: lldb-dev at lists.llvm.org
          Reporter: aetf at unlimitedcodeworks.xyz
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

When attaching to a process using -target-attach command, there's no
notification about process stopped.

This might be related to Bug 25000: https://llvm.org/bugs/show_bug.cgi?id=25000

Step to reproduce:
1. start lldb-mi
2. start cat without parameter so it runs and waits for input

Shell output:
(gdb)
-target-attach 32002
^done
=thread-group-started,id="i1",pid="32002"
(gdb)
=thread-created,id="1",group-id="i1"
=thread-selected,id="1"
(gdb)
=library-loaded,id="/usr/bin/cat",target-name="/usr/bin/cat",host-name="/usr/bin/cat",symbols-loaded="0",loaded_addr="-",size="0"
(gdb)
=library-loaded,id="[vdso]",target-name="[vdso]",host-name="[vdso]",symbols-loaded="1",symbols-path="",loaded_addr="0x00007ffc1df22000",size="0"
(gdb)
=library-loaded,id="linux-vdso.so.1",target-name="linux-vdso.so.1",host-name="linux-vdso.so.1",symbols-loaded="1",symbols-path="",loaded_addr="0x00007ffc1df22000",size="0"
(gdb)
=library-loaded,id="/usr/lib/libc.so.6",target-name="/usr/lib/libc.so.6",host-name="/usr/lib/libc.so.6",symbols-loaded="0",loaded_addr="-",size="0"
(gdb)
=library-loaded,id="/lib64/ld-linux-x86-64.so.2",target-name="/lib64/ld-linux-x86-64.so.2",host-name="/lib64/ld-linux-x86-64.so.2",symbols-loaded="0",loaded_addr="-",size="0"
(gdb)
=library-loaded,id="[vdso]",target-name="[vdso]",host-name="[vdso]",symbols-loaded="1",symbols-path="",loaded_addr="0x00007ffc1df22000",size="0"
=library-loaded,id="linux-vdso.so.1",target-name="linux-vdso.so.1",host-name="linux-vdso.so.1",symbols-loaded="1",symbols-path="",loaded_addr="0x00007ffc1df22000",size="0"
=library-loaded,id="/usr/lib/libc.so.6",target-name="/usr/lib/libc.so.6",host-name="/usr/lib/libc.so.6",symbols-loaded="0",loaded_addr="-",size="0"
=library-loaded,id="/lib64/ld-linux-x86-64.so.2",target-name="/lib64/ld-linux-x86-64.so.2",host-name="/lib64/ld-linux-x86-64.so.2",symbols-loaded="0",loaded_addr="-",size="0"
(gdb)
=library-loaded,id="/usr/bin/cat",target-name="/usr/bin/cat",host-name="/usr/bin/cat",symbols-loaded="0",loaded_addr="-",size="0"

<--- HERE *stopped notification should appear

process status
Process 32002 stopped
* thread #1: tid = 32002, 0x00007f47e4489710 libc.so.6`__GI___read + 16, name =
'cat', stop reason = signal SIGSTOP
    frame #0: 0x00007f47e4489710 libc.so.6`__GI___read + 16
libc.so.6`__GI___read:
->  0x7f47e4489710 <+16>: cmpq   $-0xfff, %rax             ; imm =
0xFFFFFFFFFFFFF001 
    0x7f47e4489716 <+22>: jae    0x7f47e4489749            ; <+73>
    0x7f47e4489718 <+24>: retq   
    0x7f47e4489719 <+25>: subq   $0x8, %rsp
^done
(gdb)

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