[lldb-dev] SB API is not working properly with OSPython plugin

[Alexander Polyakov via lldb-dev]

It is, the error is: *error: error: process must be stopped.*

I thought that the plugin (get_thread_info in my case) is invoked when the
process is already stopped, but it's not. Is it ok?

On Thu, Feb 14, 2019 at 9:53 PM Jim Ingham <jingham at apple.com> wrote:

> All SBValues have an error in them (SBValue.GetError).  Does that say
> anything interesting?
>
> Jim
>
>
>
>
> On Feb 14, 2019, at 10:08 AM, Alexander Polyakov via lldb-dev <
> lldb-dev at lists.llvm.org> wrote:
>
> Hi lldb-dev,
>
> I work on a custom implementation of OperatingSystem plugin using Python
> and SB API. I’m trying to fetch information about some variables from the
> target into the plugin, to do that I’m using the following Python code:
> ready_tasks = self._target.FindGlobalVariables(‘pxReadyTasksLists’,
> 1).GetValueAtIndex(0)
>
>
> When I do `print(ready_tasks)` I get:
> No value
>
>
> At the same time, doing the same actions inside lldb embedded interpreter
> follows to:
> `
> print(lldb.target.FindGlobalVariables('pxReadyTasksLists',1).GetValueAtIndex(0))`
>
>
> (List_t [5]) pxReadyTasksLists = {
>   [0] = {
>     uxNumberOfItems = 0
>     pxIndex = 0x00000000
>     xListEnd = {
>       xItemValue = 0
>       pxNext = 0x00000000
>       pxPrevious = 0x00000000
>     }
>   }
> …
>
>
> Does anybody know what may cause such a behavior?
>
> --
> Alexander
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>
>
>

-- 
Alexander
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