088e74cf73
The ARM Guarded Control Stack extension (GCS) is similar to existing shadow stack extensions for other architectures. The core note will include which features of GCS are enabled, which have been locked in their current state, and the stack pointer of the shadow stack. Note that 0x40f is NT_ARM_POE, FPMR is supported by LLDB and GCS will be soon, POE is not at this time. So NT_ARM_POE will be added when that work starts. See https://github.com/torvalds/linux/blob/master/include/uapi/linux/elf.h.