On Sun, 16 Jul 2023 22:51:00 +0100 Mark Brown <broonie@xxxxxxxxxx> wrote: > Add some documentation of the userspace ABI for Guarded Control Stacks. > > Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> Hi Mark, Nice document. All I could find on a first read was one typo... ... > +7. ptrace extensions > +--------------------- > + > +* A new regset NT_ARM_GCS is defined for use with PTRACE_GETREGSET and > + PTRACE_SETREGSET. > + > +* Due to the complexity surrounding allocation and deallocation of stakcs and stacks > + lack of practical application changes to the GCS configuration via ptrace > + are not supported. > +