[lldb-dev] Failing LIT-based lldb-mi tests

Mon Aug 13 11:54:38 PDT 2018

Oops, I made a mistake, I typed break-insert main. Here is the right output:

build/bin/lldb-mi a.out
(gdb)
-file-exec-and-symbols "a.out"
^done
(gdb)
=library-loaded,id="/home/alexander/workspace/gsoc/a.out",target-name="/home/alexander/workspace/gsoc/a.out",host-name="/home/alexander/workspace/gsoc/a.out",symbols-loaded="0",loaded_addr="-",size="0"
-exec-run
^running
=thread-group-started,id="i1",pid="6406"
(gdb)
=thread-created,id="1",group-id="i1"
=thread-selected,id="1"
(gdb)
=library-loaded,id="/lib/x86_64-linux-gnu/ld-2.23.so
",target-name="/lib/x86_64-linux-gnu/ld-2.23.so
",host-name="/lib/x86_64-linux-gnu/ld-2.23.so
",symbols-loaded="1",symbols-path="/usr/lib/debug/lib/x86_64-linux-gnu/
ld-2.23.so",loaded_addr="-",size="0"
(gdb)
=library-loaded,id="[vdso]",target-name="[vdso]",host-name="[vdso]",symbols-loaded="1",symbols-path="",loaded_addr="0x00007ffff7ffa000",size="0"
(gdb)
=library-loaded,id="/home/alexander/workspace/gsoc/a.out",target-name="/home/alexander/workspace/gsoc/a.out",host-name="/home/alexander/workspace/gsoc/a.out",symbols-loaded="0",loaded_addr="-",size="0"
(gdb)
*running,thread-id="all"
(gdb)
(gdb)
=library-loaded,id="/lib/x86_64-linux-gnu/libc.so.6",target-name="/lib/x86_64-linux-gnu/libc.so.6",host-name="/lib/x86_64-linux-gnu/libc.so.6",symbols-loaded="1",symbols-path="/usr/lib/debug/lib/x86_64-linux-gnu/
libc-2.23.so",loaded_addr="-",size="0"
(gdb)
=library-loaded,id="/lib/x86_64-linux-gnu/libc.so.6",target-name="/lib/x86_64-linux-gnu/libc.so.6",host-name="/lib/x86_64-linux-gnu/libc.so.6",symbols-loaded="1",symbols-path="/usr/lib/debug/lib/x86_64-linux-gnu/
libc-2.23.so",loaded_addr="-",size="0"
-break-insert func
^done,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x0000000000400514",func="func",file="test.c",fullname="/home/alexander/workspace/gsoc/llvm/tools/lldb/lit/tools/lldb-mi/exec/inputs/test.c",line="2",times="0",original-location="func"}
(gdb)
=breakpoint-modified,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x0000000000400514",func="func",file="test.c",fullname="/home/alexander/workspace/gsoc/llvm/tools/lldb/lit/tools/lldb-mi/exec/inputs/test.c",line="2",times="0",original-location="func"}
(gdb)
=breakpoint-modified,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x0000000000400514",func="func",file="test.c",fullname="/home/alexander/workspace/gsoc/llvm/tools/lldb/lit/tools/lldb-mi/exec/inputs/test.c",line="2",times="0",original-location="func"}
(gdb)
-exec-next
^error,msg="Resume timed out."
(gdb)
(gdb)
*stopped,reason="breakpoint-hit",disp="del",bkptno="1",frame={level="0",addr="0x0000000000400514",func="func",args=[],file="test.c",fullname="/home/alexander/workspace/gsoc/llvm/tools/lldb/lit/tools/lldb-mi/exec/inputs/test.c",line="2"},thread-id="1",stopped-threads="all"
(gdb)
(gdb)
*running,thread-id="all"
(gdb)
(gdb)
*stopped,reason="breakpoint-hit",disp="del",bkptno="1",frame={level="0",addr="0x0000000000400514",func="func",args=[],file="test.c",fullname="/home/alexander/workspace/gsoc/llvm/tools/lldb/lit/tools/lldb-mi/exec/inputs/test.c",line="2"},thread-id="1",stopped-threads="all"
(gdb)

On Mon, Aug 13, 2018 at 9:40 PM Александр Поляков <polyakov.alx at gmail.com>
wrote:

> Sure, this is the log with the typed commands:
>
> build/bin/lldb-mi a.out
> (gdb)
> -file-exec-and-symbols "a.out"
> ^done
> (gdb)
>
> =library-loaded,id="/home/alexander/workspace/gsoc/a.out",target-name="/home/alexander/workspace/gsoc/a.out",host-name="/home/alexander/workspace/gsoc/a.out",symbols-loaded="0",loaded_addr="-",size="0"
> -exec-run
> ^running
> =thread-group-started,id="i1",pid="4410"
> (gdb)
> =thread-created,id="1",group-id="i1"
> =thread-selected,id="1"
> (gdb)
> =library-loaded,id="/lib/x86_64-linux-gnu/ld-2.23.so
> ",target-name="/lib/x86_64-linux-gnu/ld-2.23.so
> ",host-name="/lib/x86_64-linux-gnu/ld-2.23.so
> ",symbols-loaded="1",symbols-path="/usr/lib/debug/lib/x86_64-linux-gnu/
> ld-2.23.so",loaded_addr="-",size="0"
> (gdb)
>
> =library-loaded,id="[vdso]",target-name="[vdso]",host-name="[vdso]",symbols-loaded="1",symbols-path="",loaded_addr="0x00007ffff7ffa000",size="0"
> (gdb)
>
> =library-loaded,id="/home/alexander/workspace/gsoc/a.out",target-name="/home/alexander/workspace/gsoc/a.out",host-name="/home/alexander/workspace/gsoc/a.out",symbols-loaded="0",loaded_addr="-",size="0"
> (gdb)
> *running,thread-id="all"
> (gdb)
> (gdb)
>
> =library-loaded,id="/lib/x86_64-linux-gnu/libc.so.6",target-name="/lib/x86_64-linux-gnu/libc.so.6",host-name="/lib/x86_64-linux-gnu/libc.so.6",symbols-loaded="1",symbols-path="/usr/lib/debug/lib/x86_64-linux-gnu/
> libc-2.23.so",loaded_addr="-",size="0"
> (gdb)
>
> =library-loaded,id="/lib/x86_64-linux-gnu/libc.so.6",target-name="/lib/x86_64-linux-gnu/libc.so.6",host-name="/lib/x86_64-linux-gnu/libc.so.6",symbols-loaded="1",symbols-path="/usr/lib/debug/lib/x86_64-linux-gnu/
> libc-2.23.so",loaded_addr="-",size="0"
> -break-insert main
>
> ^done,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x000000000040052f",func="main",file="test.c",fullname="/home/alexander/workspace/gsoc/llvm/tools/lldb/lit/tools/lldb-mi/exec/inputs/test.c",line="7",times="0",original-location="main"}
> (gdb)
>
> =breakpoint-modified,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x000000000040052f",func="main",file="test.c",fullname="/home/alexander/workspace/gsoc/llvm/tools/lldb/lit/tools/lldb-mi/exec/inputs/test.c",line="7",times="0",original-location="main"}
> (gdb)
>
> =breakpoint-modified,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x000000000040052f",func="main",file="test.c",fullname="/home/alexander/workspace/gsoc/llvm/tools/lldb/lit/tools/lldb-mi/exec/inputs/test.c",line="7",times="0",original-location="main"}
> (gdb)
> -exec-next
> ^error,msg="Resume timed out."
> (gdb)
> (gdb)
> =thread-exited,id="1",group-id="i1"
> =thread-group-exited,id="i1",exit-code="0"
> *stopped,reason="exited-normally"
> (gdb)
>
> No one of the commands isn't a blocking one, but I think that -exec-run
> should be blocking.
>
> On Mon, Aug 13, 2018 at 8:10 PM Adrian Prantl <aprantl at apple.com> wrote:
>
>>
>>
>> > On Aug 11, 2018, at 3:58 AM, Александр Поляков <polyakov.alx at gmail.com>
>> wrote:
>> >
>> > I reproduced the test you suggested and got following output:
>> >
>> > build/bin/lldb-mi --synchronous a.out <
>> llvm/tools/lldb/lit/tools/lldb-mi/exec/lldb-mi-fail.test
>> > (gdb)
>> > -file-exec-and-symbols "a.out"
>> > ^done
>> > (gdb)
>> > ^done
>> > (gdb)
>> >
>> =library-loaded,id="/home/alexander/workspace/gsoc/a.out",target-name="/home/alexander/workspace/gsoc/a.out",host-name="/home/alexander/workspace/gsoc/a.out",symbols-loaded="0",loaded_addr="-",size="0"
>> > ^done
>> > (gdb)
>> > ^done
>> > (gdb)
>> > ^done
>> > (gdb)
>> > ^done
>> > (gdb)
>> > ^done
>> > (gdb)
>> > ^done
>> > (gdb)
>> > ^done
>> > (gdb)
>> >
>> ^done,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x000000000000000f",func="??",file="??",fullname="??/??",line="0",times="0",original-location="f"}
>> > (gdb)
>> >
>> =breakpoint-modified,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x000000000000000f",func="??",file="??",fullname="??/??",line="0",times="0",original-location="f"}
>> > (gdb)
>> > ^done
>> > (gdb)
>> > ^running
>> > =thread-group-started,id="i1",pid="5075"
>> > (gdb)
>> > =thread-created,id="1",group-id="i1"
>> > =thread-selected,id="1"
>> > (gdb)
>> > =library-loaded,id="/lib/x86_64-linux-gnu/ld-2.23.so
>> ",target-name="/lib/x86_64-linux-gnu/ld-2.23.so
>> ",host-name="/lib/x86_64-linux-gnu/ld-2.23.so
>> ",symbols-loaded="1",symbols-path="/usr/lib/debug/lib/x86_64-linux-gnu/
>> ld-2.23.so",loaded_addr="-",size="0"
>> > (gdb)
>> >
>> =library-loaded,id="[vdso]",target-name="[vdso]",host-name="[vdso]",symbols-loaded="1",symbols-path="",loaded_addr="0x00007ffff7ffa000",size="0"
>> > (gdb)
>> >
>> =library-loaded,id="/home/alexander/workspace/gsoc/a.out",target-name="/home/alexander/workspace/gsoc/a.out",host-name="/home/alexander/workspace/gsoc/a.out",symbols-loaded="0",loaded_addr="-",size="0"
>> > (gdb)
>> >
>> =library-loaded,id="/lib/x86_64-linux-gnu/libc.so.6",target-name="/lib/x86_64-linux-gnu/libc.so.6",host-name="/lib/x86_64-linux-gnu/libc.so.6",symbols-loaded="1",symbols-path="/usr/lib/debug/lib/x86_64-linux-gnu/
>> libc-2.23.so",loaded_addr="-",size="0"
>> > (gdb)
>> >
>> =library-loaded,id="/lib/x86_64-linux-gnu/libc.so.6",target-name="/lib/x86_64-linux-gnu/libc.so.6",host-name="/lib/x86_64-linux-gnu/libc.so.6",symbols-loaded="1",symbols-path="/usr/lib/debug/lib/x86_64-linux-gnu/
>> libc-2.23.so",loaded_addr="-",size="0"
>> > (gdb)
>> > =thread-exited,id="1",group-id="i1"
>> > =thread-group-exited,id="i1",exit-code="0"
>> > *stopped,reason="exited-normally"
>> > (gdb)
>> > ^done
>> > (gdb)
>> > ^done
>> > (gdb)
>> > ^error,msg="Resume timed out."
>> > (gdb)
>> > ^done
>> > (gdb)
>> >
>> > As a command that needs a breakpoint to be hit I chose the -exec-next
>> --thread 1. It's the same error which is seen on the bots.
>>
>> Can you help me understand the order in which events happened in that
>> log? I don't see the -exec-next command in the log. If you type in the
>> commands manually, does it become obvious which ones are blocking and which
>> ones aren't (but should be)?
>>
>> -- adrian
>
>
>
> --
> Alexander
>

-- 
Alexander
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