runner.faq

Why not use semihosting?

Semihosting is a feature in many embedded development toolsets, that allows stubbing for the syscalls similar to what we described in a prior section.

The main problem is that semihosting is provided by the gdb-server, e.g. openocd or st-link, and the console output can be written into the stdout/ stderr stream of the server. The debug-runner does not capture that, to keep the logs seperate, thus semihosting output will not be received in the the gdb-output. In addition, out solution will run faster, because it uses a small buffer.

For more information on semihosting see

• Arm InfoCenter
• Keil Arm
• Gnu-Arm-Eclipse