From: Marco Atzeri <marco.atzeri@gmail.com>
To: cygwin@cygwin.com
Subject: Re: GDB and thread
Date: Sun, 29 Dec 2019 16:50:00 -0000 [thread overview]
Message-ID: <956350f7-5bbc-4e80-f089-03851c6e0f44@gmail.com> (raw)
In-Reply-To: <5bb42265-9adf-9499-0b94-ab1f2b139e58@SystematicSw.ab.ca>
Am 29.12.2019 um 05:38 schrieb Brian Inglis:
> On 2019-12-28 15:28, Marco Atzeri wrote:
>> Am 28.12.2019 um 23:03 schrieb Ken Brown:
>>> On 12/28/2019 4:27 PM, Marco Atzeri wrote:
>>>> I am trying to debug the libuv test failures,
>>>> but it seems I am not able to convince GDB on stopping
>>>> just before the failure.
>>>>
>>>> Is "thread apply all" working on Cygwin ?
>>>> The fact that produces no output in comparison to
>>>> a normal break command is a bit strange
>>>>
>>>> (gdb) break test-dlerror.c:34
>>>> Breakpoint 1 at 0x10040b0b0: file /pub/devel/libuv/libuv-1.34.0/test/test-dlerro
>>>> r.c, line 34.
>>>> (gdb) thread apply all break test-dlerror.c:34
>>>
>>> Might this be related to optimization? That could change the order in which
>>> lines of code are executed. Have you tried building without optimization?
>>
>> Already thought, but it is built with -ggdb -O0
> Recommended to use at least -Og nowadays for better debugging:
>
> $ info gcc inv debug
>
> "With no '-O' option at all, some compiler passes that collect information
> useful for debugging do not run at all, so that '-Og' may result in a better
> debugging experience."
>
Thanks for the info
unfortunately there is no difference.
It is like the debugger is unable to see the breakpoints when running
in this threaded code.
Marco
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next prev parent reply other threads:[~2019-12-29 7:25 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-28 22:05 Marco Atzeri
2019-12-28 22:28 ` Ken Brown
2019-12-29 4:39 ` Marco Atzeri
2019-12-29 7:25 ` Brian Inglis
2019-12-29 12:58 ` Brian Inglis
2019-12-29 16:50 ` Marco Atzeri [this message]
2019-12-29 17:25 ` Jon Turney
2019-12-29 17:57 ` Marco Atzeri
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