reg-s390.o and reg-s390x.o.
* linux-low.c (new_inferior): New global variable.
(linux_create_inferior, linux_attach): Set it.
(linux_wait_for_process): Call the_low_target.arch_setup after the
target has stopped for the first time.
(initialize_low): Do not call the_low_target.arch_setup.
* linux-s390-low.c (s390_get_pc): Support bi-arch operation.
(s390_set_pc): Likewise.
(s390_arch_setup): New function.
(the_low_target): Use s390_arch_setup as arch_setup routine.
* regcache.c (realloc_register_cache): New function.
(set_register_cache): Call it for each existing regcache.
* configure.srv [s390-*-linux*, s390x-*-linux*]: Set srv_linux_regsets
and srv_linux_thread_db to yes.
* linux-s390-low.c (s390_fill_gregset): New function.
(target_regsets): Define data structure.
Committed by Jim Blandy <jimb@redhat.com>.
* config/s390/nm-linux.h: Update comments. Do not include "solib.h".
(KERNEL_U_ADDR, REGISTER_U_ADDR, U_REGS_OFFSET): Remove.
(FETCH_INFERIOR_REGISTERS): Define.
* config/s390/s390.mh (NATDEPFILES): Remove core-aout.o and
core-regset.o.
* config/s390/s390x.mt: Remove.
* config/s390/tm-s390.h: Remove.
* config/s390/tm-linux.h: Do not include "s390/tm-s390.h".
(TARGET_ELF64): Remove.
(SKIP_TRAMPOLINE_CODE): Do not undefine.
* configure.tgt [s390-*-*, s390x-*-*]: Merge into single
s390*-*-* case; always set gdb_target to s390.
* regformats/reg-s390.dat: Remove control registers.
* regformats/reg-s390x.dat: Likewise.
* s390-tdep.h: New file.
* s390-nat.c: Do not include <asm/processor.h> or <value.h>.
Include "inferior.h" and "s390-tdep.h".
Remove private definition of offsetof.
(s390_register_u_addr): Remove.
(regmap_gregset, regmap_fpregset): Define.
(supply_gregset, fill_gregset): Reimplement.
(supply_fpregset, fill_fpregset): Likewise.
(s390_inferior_tid): New function.
(fetch_regs, store_regs, fetch_fpregs, store_fpregs): Likewise.
(fetch_inferior_registers, store_inferior_registers): Likewise.
* s390-tdep.c: Do not define S390_TDEP. Include "defs.h" instead
of <defs.h>. Include "reggroups.h", "regset.h", and "s390-tdep.h".
Global replace of S390_GP0_REGNUM by S390_R0_REGNUM.
Global replace of S390_FP0_REGNUM by S390_F0_REGNUM.
(struct gdbarch_tdep): Define.
(struct s390_register_info): Define.
(s390_register_info): New variable.
(s390_register_name): Reimplement.
(s390_register_type): New function.
(s390_register_raw_size, s390x_register_raw_size): Remove.
(s390_cannot_fetch_register): Remove.
(s390_register_byte): Remove.
(s390_register_virtual_type, s390x_register_virtual_type): Remove.
(s390_dwarf_regmap): New variable.
(s390_dwarf_reg_to_regnum): New function.
(s390_stab_reg_to_regnum): Remove.
(s390_pseudo_register_read, s390_pseudo_register_write): New functions.
(s390x_pseudo_register_read, s390x_pseudo_register_write): Likewise.
(s390_convert_register_p): Likewise.
(s390_register_to_value, s390_value_to_register): Likewise.
(s390_register_reggroup_p): Likewise.
(s390_regmap_gregset, s390x_regmap_gregset, s390_regmap_fpregset,
s390_gregset, s390x_gregset, s390_fpregset): New variables.
(s390_supply_regset, s390_regset_from_core_section): New functions.
(GDB_TARGET_IS_ESAME): Move here from tm-s390.h.
(S390_FPR_SIZE): Likewise.
(S390_GPR_SIZE): Likewise. Redefine in terms of GDB_TARGET_IS_ESAME.
Global replace of DEPRECATED_REGISTER_SIZE by S390_GPR_SIZE.
(S390_NUM_GPRS): Move here from tm-s390.h.
(S390_NUM_FPRS): Likewise.
(s390_in_function_epilogue_p): New function.
(s390_is_sigreturn): Replace S390_PSW_ADDR_SIZE by S390_GPR_SIZE.
Replace S390_PC_REGNUM by S390_PSWA_REGNUM.
(s390_gdbarch_init): Allocate and set up gdbarch_tdep structure.
Replace s390_stab_reg_to_regnum by s390_dwarf_reg_to_regnum.
Replace S390_FP_REGNUM by S390_SP_REGNUM.
Remove calls to:
set_gdbarch_deprecated_max_register_raw_size,
set_gdbarch_deprecated_max_register_virtual_size,
set_gdbarch_deprecated_register_byte,
set_gdbarch_cannot_fetch_register,
set_gdbarch_cannot_store_register,
set_gdbarch_deprecated_register_size,
set_gdbarch_deprecated_register_raw_size,
set_gdbarch_deprecated_register_virtual_size,
set_gdbarch_deprecated_register_virtual_type,
set_gdbarch_deprecated_register_bytes.
Add calls to:
set_gdbarch_num_pseudo_regs,
set_gdbarch_register_type,
set_gdbarch_convert_register_p,
set_gdbarch_register_to_value,
set_gdbarch_value_to_register,
set_gdbarch_register_reggroup_p,
set_gdbarch_regset_from_core_section,
set_gdbarch_pseudo_register_read,
set_gdbarch_pseudo_register_write,
set_gdbarch_in_function_epilogue_p.
* Makefile.in (s390-nat.o, s390-tdep.o): Update dependencies.
(s390_tdep_h): New variable.
* linux-low.h: Remove obsolete prototypes.
(struct linux_target_ops): New.
(extern the_low_target): New.
* linux-low.c (num_regs, regmap): Remove declarations.
(register_addr): Use the_low_target explicitly.
(fetch_register): Likewise.
(usr_fetch_inferior_registers): Likewise.
(usr_store_inferior_registers): Likewise.
* linux-arm-low.c (num_regs): Remove.
(arm_num_regs): Define.
(arm_regmap): Renamed from regmap, made static.
(arm_cannot_fetch_register): Renamed from cannot_fetch_register,
made static.
(arm_cannot_store_register): Renamed from cannot_store_register,
made static.
(the_low_target): New.
* linux-i386-low.c (num_regs): Remove.
(i386_num_regs): Define.
(i386_regmap): Renamed from regmap, made static.
(i386_cannot_fetch_register): Renamed from cannot_fetch_register,
made static.
(i386_cannot_store_register): Renamed from cannot_store_register,
made static.
(the_low_target): New.
* linux-ia64-low.c (num_regs): Remove.
(ia64_num_regs): Define.
(ia64_regmap): Renamed from regmap, made static.
(ia64_cannot_fetch_register): Renamed from cannot_fetch_register,
made static.
(ia64_cannot_store_register): Renamed from cannot_store_register,
made static.
(the_low_target): New.
* linux-m68k-low.c (num_regs): Remove.
(m68k_num_regs): Define.
(m68k_regmap): Renamed from regmap, made static.
(m68k_cannot_fetch_register): Renamed from cannot_fetch_register,
made static.
(m68k_cannot_store_register): Renamed from cannot_store_register,
made static.
(the_low_target): New.
* linux-mips-low.c (num_regs): Remove.
(mips_num_regs): Define.
(mips_regmap): Renamed from regmap, made static.
(mips_cannot_fetch_register): Renamed from cannot_fetch_register,
made static.
(mips_cannot_store_register): Renamed from cannot_store_register,
made static.
(the_low_target): New.
* linux-ppc-low.c (num_regs): Remove.
(ppc_num_regs): Define.
(ppc_regmap): Renamed from regmap, made static.
(ppc_cannot_fetch_register): Renamed from cannot_fetch_register,
made static.
(ppc_cannot_store_register): Renamed from cannot_store_register,
made static.
(the_low_target): New.
* linux-s390-low.c (num_regs): Remove.
(s390_num_regs): Define.
(s390_regmap): Renamed from regmap, made static.
(s390_cannot_fetch_register): Renamed from cannot_fetch_register,
made static.
(s390_cannot_store_register): Renamed from cannot_store_register,
made static.
(the_low_target): New.
* linux-sh-low.c (num_regs): Remove.
(sh_num_regs): Define.
(sh_regmap): Renamed from regmap, made static.
(sh_cannot_fetch_register): Renamed from cannot_fetch_register,
made static.
(sh_cannot_store_register): Renamed from cannot_store_register,
made static.
(the_low_target): New.
* linux-x86-64-low.c (x86_64_regmap): Renamed from regmap.
(the_low_target): New.
