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2022-07-23openocd: src: replace the GPL-2.0-or-later license tagAntonio Borneo1-13/+2
Replace the FSF boilerplate with the SPDX tag. The SPDX tag on files *.c is incorrect, as it should use the C99 single line comment using '//'. But current checkpatch doesn't allow C99 comments, so keep using standard C comments, by now. Change-Id: I30cd66ac7d737f1973c68fdbb841ffcf00e917c4 Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com> Reviewed-on: https://review.openocd.org/c/openocd/+/7072 Tested-by: jenkins
2021-01-13openocd: fix doxygen parameters of functionsAntonio Borneo1-1/+1
Add to doxygen comment the missing parameters. Remove from doxygen comment any non-existing parameter. Fix the parameter names in doxygen comment to match the one in the function prototype. Where the parameter name in the doxygen description seems better than the one in the code, change the code. Escape the character '<' to prevent doxygen to interpret it as an xml tag. Change-Id: I22da723339ac7d7a7a64ac4c1cc4336e2416c2cc Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com> Reviewed-on: http://openocd.zylin.com/6002 Tested-by: jenkins
2020-12-02Add initial RTT supportMarc Schink1-0/+287
Real Time Transfer (RTT) is an interface specified by SEGGER based on basic memory reads and writes to transfer data bidirectionally between target and host. Every target that supports so called "background memory access", which means that the target memory can be accessed by the debugger while the target is running, can be used. RTT is especially of interest for targets which do not support Serial Wire Output (SWO) (e.g. ARM Cortex-M0) or where using semihosting is not possible (e.g. real-time applications) [1]. The data transfer is organized in channels where each channel consists of an up- and/or down-channel. See [2] for more details. Channels are exposed via TCP connections. One or more RTT server can be assigned to each channel to make them accessible to an unlimited number of TCP connections. The current implementation does not respect buffer flags which are used to determine what happens when writing to a full buffer. Note that the implementation is designed in a way that the RTT operations can be directly performed by an adapter (e.g. J-Link). [1] https://devzone.nordicsemi.com/tutorials/6/ [2] https://www.segger.com/jlink-rtt.html Change-Id: I8bc8a1b381fb74e08b8752d5cf53804cc573c1e0 Signed-off-by: Marc Schink <dev@zapb.de> Reviewed-on: http://openocd.zylin.com/4055 Tested-by: jenkins Reviewed-by: Tomas Vanek <vanekt@fbl.cz> Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>