The getcontext, and setcontext functions should
not adjust the stack, and should load the stack
pointer from the machine context. Calling makecontext
should create a frame for spilled incoming arguments,
and sync uc_stack.ss_sp to the machine context.
We do not support calling getcontext, modifying ss_sp,
and calling setcontext directly.
* sysdeps/unix/sysv/linux/hppa/ucontext_i.sym: New file.
* sysdeps/unix/sysv/linux/hppa/Makefile: New file.
* sysdeps/unix/sysv/linux/hppa/getcontext.S: New file.
* sysdeps/unix/sysv/linux/hppa/makecontext.c: New file.
* sysdeps/unix/sysv/linux/hppa/setcontext.S: New file.
* sysdeps/unix/sysv/linux/hppa/swapcontext.c: New file.