* amd64-windows-tdep.c: #include gdbcore.h and regcache.h.
(amd64_windows_return_value): New function.
(amd64_windows_init_abi): Call set_gdbarch_return_value with
amd64_windows_return_value.
* i386-tdep.h (struct gdbarch_tdep): Add new field
integer_param_regs_saved_in_caller_frame.
* amd64-windows-tdep.c (amd64_windows_init_abi): Set
tdep->integer_param_regs_saved_in_caller_frame to 1.
* amd64-tdep.c (amd64_push_dummy_call): Allocate some memory on
stack if tdep->integer_param_regs_saved_in_caller_frame is set.
* i386-tdep.h (gdbarch_tdep): Add field memory_args_by_pointer.
* amd64-tdep.c (amd64_push_arguments): Add handling of architectures
where tdep->memory_args_by_pointer is non-zero.
* amd64-windows-tdep.c (amd64_windows_init_abi): Set
tdep->memory_args_by_pointer to 1.
gdb/ChangeLog:
* i386-tdep.h (enum amd64_reg_class): New, moved here from
amd64-tdep.c.
(struct gdbarch_tdep): Add fields call_dummy_num_integer_regs,
call_dummy_integer_regs, and classify.
* amd64-tdep.h (amd64_classify): Add declaration.
* amd64-tdep.c (amd64_dummy_call_integer_regs): New static constant.
(amd64_reg_class): Delete, moved to i386-tdep.h.
(amd64_classify): Make non-static. Move declaration to amd64-tdep.h.
Replace call to amd64_classify by call to tdep->classify.
(amd64_push_arguments): Get the list of registers to use for
passing integer parameters from the gdbarch tdep structure,
rather than using a hardcoded one. Replace calls to amd64_classify
by calls to tdep->classify.
(amd64_push_dummy_call): Get the register number used for
the "hidden" argument from tdep->call_dummy_integer_regs.
(amd64_init_abi): Initialize tdep->call_dummy_num_integer_regs
and tdep->call_dummy_integer_regs. Set tdep->classify.
* amd64-windows-tdep.c: Add include of gdbtypes.h.
(amd64_windows_dummy_call_integer_regs): New static global.
(amd64_windows_classify): New function.
(amd64_windows_init_abi): Initialize tdep->call_dummy_num_integer_regs
tdep->call_dummy_integer_regs and tdep->classify.
gdb/testsuite/ChangeLog:
* gdb.ada/call_pn: New testcase.
* config/i386/mingw64.mh, config/i386/nm-cygwin64.h: New files.
* configure.host, configure.tgt: Add handling for x86_64/windows.
* config/djgpp/fnchange.lst: Add entries for amd64-windows-nat.c
and amd64-windows-tdep.c.
