The licence agreement for the “ARM/J-Trace/SAM-ICE software and documentation pack V3.30k” says that only an J-LInk or autorized OEM product may be used.
It is possible to write your own debug/IDE application to link to the JLinkARM.dll so OpenOcd should be allowed but to get the header files and linking information the SDK and a special licence agreement is needed.
Licensor grants Licensee a non-exclusive and non-transferable License to use the software or parts thereof with SEGGERs J-Link hardware or authorized OEM products (Atmel SAM-ICE, Analog Devices mIDAS-Link, IAR J-Link, IAR J-Link KS) only. Licensee will receive the J-Link ARM software either as
code in linkable form (e.g. object code) or executable.
The use on any other hardware (e.g. MT-Link) is prohibited and illegal.
Any other use of the software package is prohibited without prior written authorization from SEGGER.
This also seems to be Windows only so since I dont have a J-Link and mostly runs Linux I think I will leave it here.
Magnus