15254 %ymm registers not restored after signal handler
15367 x86 getfpregs() summons corrupting %xmm ghosts
15333 want x86 /proc xregs support (libc_db, libproc, mdb, etc.)
15336 want libc functions for extended ucontext_t
15334 want ps_lwphandle-specific reg routines
15328 FPU_CW_INIT mistreats reserved bit
15335 i86pc fpu_subr.c isn't really platform-specific
15332 setcontext(2) isn't actually noreturn
15331 need <sys/stdalign.h>
Change-Id: I7060aa86042dfb989f77fc3323c065ea2eafa9ad
Conflicts:
    usr/src/uts/common/fs/proc/prcontrol.c
    usr/src/uts/intel/os/archdep.c
    usr/src/uts/intel/sys/ucontext.h
    usr/src/uts/intel/syscall/getcontext.c

*** 10,21 ****
  .\"
  .\"
  .\" Copyright 2018 Joyent, Inc.
  .\" Copyright (c) 2019 Carlos Neira <cneirabustos@gmail.com>
  .\" Copyright 2020 OmniOS Community Edition (OmniOSce) Association.
  .\"
! .Dd March 10, 2023
  .Dt LIBPROC 3LIB
  .Os
  .Sh NAME
  .Nm libproc
  .Nd process control library
--- 10,22 ----
  .\"
  .\"
  .\" Copyright 2018 Joyent, Inc.
  .\" Copyright (c) 2019 Carlos Neira <cneirabustos@gmail.com>
  .\" Copyright 2020 OmniOS Community Edition (OmniOSce) Association.
+ .\" Copyright 2023 Oxide Computer Company
  .\"
! .Dd March 20, 2023
  .Dt LIBPROC 3LIB
  .Os
  .Sh NAME
  .Nm libproc
  .Nd process control library
*** 216,230 ****
  .It Sy Pgetauxval Ta Sy Pgetauxvec
  .It Sy Pgetenv Ta Sy Pisprocdir
  .It Sy Pissyscall_prev Ta Sy Plmid
  .It Sy Plmid_to_loadobj Ta Sy Plmid_to_map
  .It Sy Plookup_by_addr Ta Sy Plookup_by_name
- .It Sy Plwp_alt_stack Ta Sy Plwp_getfpregs
- .It Sy Plwp_getname Ta Sy Plwp_getpsinfo
- .It Sy Plwp_getregs Ta Sy Plwp_getspymaster
- .It Sy Plwp_main_stack Ta Sy Plwp_setfpregs
- .It Sy Plwp_setregs Ta Sy Plwp_stack
  .It Sy Pname_to_ctf Ta Sy Pname_to_loadobj
  .It Sy Pname_to_map Ta Sy Pobjname
  .It Sy Pobjname_resolved Ta Sy Pplatform
  .It Sy Ppltdest Ta Sy Ppriv
  .It Sy Ppsinfo Ta Sy Pputareg
--- 217,226 ----
*** 254,271 ****
  manipulation of the thread itself.
  .Bl -column -offset indent ".Sy Pmapping_iter_resolved" ".Sy Psymbol_iter_by_addr"
  .It Sy Lalt_stack Ta Sy Lclearfault
  .It Sy Lclearsig Ta Sy Lctlfd
  .It Sy Ldstop Ta Sy Lgetareg
! .It Sy Lmain_stack Ta Sy Lprochandle
! .It Sy Lpsinfo Ta Sy Lputareg
! .It Sy Lsetrun Ta Sy Lstack
  .It Sy Lstate Ta Sy Lstatus
  .It Sy Lstop Ta Sy Lsync
  .It Sy Lwait Ta Sy Lxecbkpt
! .It Sy Lxecwapt Ta ""
  .El
  .Ss System Call Injection
  The following routines are used to inject specific system calls and have
  them run in the context of a process.
  .Bl -column -offset indent ".Sy Pmapping_iter_resolved" ".Sy Psymbol_iter_by_addr"
  .It Sy pr_access Ta Sy pr_close
--- 250,279 ----
  manipulation of the thread itself.
  .Bl -column -offset indent ".Sy Pmapping_iter_resolved" ".Sy Psymbol_iter_by_addr"
  .It Sy Lalt_stack Ta Sy Lclearfault
  .It Sy Lclearsig Ta Sy Lctlfd
  .It Sy Ldstop Ta Sy Lgetareg
! .It Sy Lgetfpregs Ta Sy Lgetregs
! .It Sy Lgetxregs Ta Sy Lmain_stack
! .It Sy Lprochandle Ta Sy Lpsinfo
! .It Sy Lputareg Ta Sy Lsetrun
! .It Sy Lsetfpregs Ta Sy Lsetregs
! .It Sy Lsetxregs Ta Sy Lstack
  .It Sy Lstate Ta Sy Lstatus
  .It Sy Lstop Ta Sy Lsync
  .It Sy Lwait Ta Sy Lxecbkpt
! .It Sy Lxecwapt Ta Sy ""
  .El
+ .Bl -column -offset indent ".Sy Pmapping_iter_resolved" ".Sy Psymbol_iter_by_addr"
+ .It Sy Plwp_alt_stack Ta Sy Plwp_freexregs
+ .It Sy Plwp_getfpregs Ta Sy Plwp_getname
+ .It Sy Plwp_getpsinfo Ta Sy Plwp_getregs
+ .It Sy Plwp_getspymaster Ta Sy Plwp_main_stack
+ .It Sy Plwp_getxregs Ta Sy Plwp_setfpregs
+ .It Sy Plwp_setregs Ta Sy Plwp_setxregs
+ .It Sy Plwp_stack Ta Sy ""
+ .El
  .Ss System Call Injection
  The following routines are used to inject specific system calls and have
  them run in the context of a process.
  .Bl -column -offset indent ".Sy Pmapping_iter_resolved" ".Sy Psymbol_iter_by_addr"
  .It Sy pr_access Ta Sy pr_close
*** 336,347 ****
  The following functions are specific to the SPARC, 32-bit and 64-bit,
  versions of the
  .Nm
  library.
  .Bl -column -offset indent ".Sy Pmapping_iter_resolved" ".Sy Psymbol_iter_by_addr"
! .It Sy Plwp_getgwindows Ta Sy Plwp_getxregs
! .It Sy Plwp_setxregs Ta Sy ""
  .El
  .Pp
  The following functions are specific to the 64-bit SPARC version of the
  .Nm
  library.
--- 344,354 ----
  The following functions are specific to the SPARC, 32-bit and 64-bit,
  versions of the
  .Nm
  library.
  .Bl -column -offset indent ".Sy Pmapping_iter_resolved" ".Sy Psymbol_iter_by_addr"
! .It Sy Plwp_getgwindows Ta Sy ""
  .El
  .Pp
  The following functions are specific to the 64-bit SPARC version of the
  .Nm
  library.