This updates behavior of libdebugger to handle debug exceptions in
interrupt context by temporarily removing a software breakpoint,
stepping, and then resuming afterward.
It is possible to remove software breaks without actually restoring the
original instruction to memory. When this happens, the original
instruction is lost. This ensures that the original instruction is
restored when a software break is removed.
Using 32bit types like uint32_t for pointers creates issues on 64 bit
architectures like AArch64. Replaced occurrences of these with
uintptr_t, which will work for both 32 and 64 bit architectures. Added
hex_decode_addr function to rtems-debugger.
- Add `printk` support to aid multi-core debugging.
- Add lock trace to aid lock debugging.
- Fixes to gcc-7.1 warnings.
- Fixes from ticket #2879.
- Add verbose command controls.
- Change using the RTEMS sys/lock.h API to manage exception threads.
- ARM hardware breakpoint fixes. Support for SMP stepping
is not implemented, this requires use of the context id
register.
Closes#2879.
