* gregset.h: New file. Typedefs for gdb_gregset_t and
gdb_fpregset_t, prototypes for supply_gregset and friends.
* procfs.c: Include gregset.h. Delete local prototypes for
supply_gregset etc., and local typedef gdb_gregset_t etc.
* sol-thread.c: Include gregset.h, delete local prototypes,
add appropriate casts to gdb_gregset_t.
* uw-thread.c, lin-thread.c, core-sol2.c, core-regset.c,
sparc-tdep.c, ptx4-nat.c, ppc-linux-nat.c, mipsv4-nat.c,
m88k-nat.c, m68klinux-nat.c, m68k-tdep.c, irix5-nat.c,
irix4-nat.c, ia64-linux-nat.c, i386v4-nat.c, cxux-nat.c,
arm-linux-nat.c, alpha-nat.c: Include gregset.h.
* config/nm-linux.h: Define GDB_GREGSET_T, GDB_FPREGET_T.
* config/sparc/tm-sun4sol2.h: Ditto.
and P_LINK_W.
(P_PEA_FP, P_MOVL_SP_FP): New macros.
(P_MOVL, P_LEAL, P_MOVML): Macros renamed from P_MOV_L, P_LEA_L and
P_MOVM_L.
(altos_skip_prologue, isi_skip_prologue): Use P_* macros, not octal
constants.
(delta68_in_sigtramp): New function.
(delta68_frame_args_address, delta68_frame_saved_pc): Ditto.
(m68k_skip_prologue): Use P_* macros, not hex constants.
(m68k_find_saved_regs): Do not expect a fixed sequence of register save
instructions, but accept them in any order; use P_* macros, not octal
or hex constants; recognize also `fmovemx to (fp + displacement)' and
`moveml to (fp + displacement)'.
* m68/tm-delta68.h (IN_SIGTRAMP): New macro.
(FRAME_SAVED_PC, FRAME_ARGS_ADDRESS): Ditto.
