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59763653c6
Cortex-M support for SMP multicore targets. This SMP implementation unlike older ones does not act on the first halted target found. It polls targets until a SMP group is finished and stores eventual 'halted' events instead of emitting them. As soon as polling of a group is done, poll proceeds with SMP related tasks. This approach improves detection of a reason why debug stopped - a correct reason is detected for all targets, not only for the first found. Drawback: SMP target group should be defined in the same order as the targets were defined. Obsolete gdb 'J' packet/smp_gdb command core switching is not implemented, use with rtos hwthread. Only one core is resumed if debug_execution is requested. Some ideas taken from Graham Sanderson's [4936] and src/target/aarch64.c Added error checking of armv7m_restore_context(). Change-Id: I60f5b79e74b624dc2b5835ff10e38ac2ccb23792 Link: [4936]: target/cortex_m: Add smp support for Cortex M | https://review.openocd.org/c/openocd/+/4936 Signed-off-by: Tomas Vanek <vanekt@fbl.cz> Reviewed-on: https://review.openocd.org/c/openocd/+/7239 Tested-by: jenkins Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>