Add connect to running target in OpenCD

[laomaolaile]

• Add connect to running target in OpenCD
• Modify an effect bug of connect to running target in jlink

[fanghuaqi]

Could you provide some screenshots of how it works? @laomaolaile

[laomaolaile]

I have added a "Connect to running target" checkbox on the Debug page, similar to the one in the J-Link debugger UI.

When the "Connect to running target" option is selected, it affects the settings of several other options, as shown in the image below.

I have tested the implementation, and it works as expected. The GDB trace also confirms that the behavior matches the expectations.

[TommyMurphyTM1234]

What happens if the user checks Connect to running target and then checks one or more of Initial reset, Load executable, Pre-run/Restart reset, Continue? Does Connect to running target get unchecked or is a configuration error displayed?

[laomaolaile]

When the "Connect to running target" option is checked, the options Initial reset, Load executable, and Pre-run/Restart reset are disabled.

At the same time, when sending GDB commands, the system will first check whether "Connect to running target" is enabled, and then determine whether Initial reset, Load executable, or Pre-run/Restart reset should be used.

The Connect button is not related to the "Connect to running target" option.

[TommyMurphyTM1234]

When the "Connect to running target" option is checked, the options Initial reset, Load executable, and Pre-run/Restart reset are disabled.

Thanks - I missed that in the screenshots.

Might it then become confusing if/when the user wants to use one of those options and doesn't understand that they're disabled because the Connect to running target option on another dialog tab is enabled?

The Connect button is not related to the "Connect to running target" option.

I presume you meant the Continue button? My mistake to mention it in this context.

[laomaolaile]

You're absolutely right — this could indeed be a potential source of confusion. If the "Connect to running target" option were placed on the Startup tab, users would be able to see how Initial reset, Load executable, and Pre-run/Restart reset become grayed out as soon as it's checked, which would make the behavior more intuitive.

However, I followed the J-Link implementation as a reference, where "Connect to running target" is located on the Debugger tab. To maintain consistency in UI style and user habits, I also placed it on the Debugger tab in this implementation.

[ilg-ul]

I don't have time now to check the full code, what does this call?

[ilg-ul]

Please make all pull requests against the develop branch.

[laomaolaile]

Please make all pull requests against the develop branch.

Sorry, I didn't notice this earlier — I've already made the changes.