Baruch Siach de6561f666 xtensa: use common ptrace.h 12 lat temu
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procfs.h 266bdc1f62 Replace FSF snail mail address with URLs 13 lat temu
ucontext.h 266bdc1f62 Replace FSF snail mail address with URLs 13 lat temu
user.h 04f13f362e xtensa: add a stub user.h file 13 lat temu