* mips-tdep.c (mips_n32n64_push_arguments): Remove alignment
adjustment that doesn't conform to the ABI.
(mips_extract_struct_value_address): Retrieve V0_REGNUM from
saved regcache, not from current regcache.
* mips-tdep.c (MSYMBOL_IS_SPECIAL, MSYMBOL_SIZE): These are only
used locally, so move them from the target machine header to here.
(mips_set_processor_type, mips_register_name, mips32_next_pc,
mips16_next_pc, cached_proc_desc, mips_set_processor_type):
Make static.
* config/mips/tm-mips.h (MSYMBOL_IS_SPECIAL, MSYMBOL_SIZE): Delete.
* config/mips/tm-mips.h (STORE_STRUCT_RETURN): Delete.
(EXTRACT_STRUCT_VALUE_ADDRESS): Delete.
* mips-tdep.c (mips_store_struct_return): New function.
(mips_extract_struct_value_address): New function.
(mips_gdbarch_init): Set store_struct_return and
extract_struct_value_address.
* mips-tdep.c (mips_gdbarch_init): Update.
(mips_o32_extract_return_value): Rewrite.
(mips_o32_store_return_value): Rewrite.
(mips_o32_xfer_return_value): New function.
(mips_xfer_register): Tweak debug print message. Allow for
buf_offset when dumping the value transfered.
* mips-tdep.c (mips_xfer_register): New function.
(mips_n32n64_extract_return_value): Rewrite.
(mips_gdbarch_init): For N32 and N64, set extract_return_value
instead of deprecated_extract_return_value.
* config/mips/tm-mips.h (FUNCTION_START_OFFSET, IN_SIGTRAMP,
REGISTER_VIRTUAL_SIZE): Delete.
(REGISTER_CONVERT_FROM_TYPE, REGISTER_CONVERT_TO_TYPE): Convert
from macros to functions.
* mips-tdep.c (mips_register_convert_from_type,
mips_register_convert_to_type): New functions.
(mips_gdbarch_init): Set up function_start_offset,
register_virtual_size, pc_in_sigtramp.
* config/mips/tm-mips.h (REGISTER_CONVERT_TO_VIRTUAL,
REGISTER_CONVERT_TO_RAW, REGISTER_CONVERTIBLE,
MAX_REGISTER_RAW_SIZE, MAX_REGISTER_VIRTUAL_SIZE): Delete.
* mips-tdep.c (mips_gdbarch_init): Set the above in the gdbarch.
(mips_register_convertible, mips_register_convert_to_virtual,
mips_register_convert_to_raw): Make static.
* mips-tdep.c (mips_push_arguments): Rename to
mips_eabi_push_arguments, and tune for EABI.
(MIPS_REGS_HAVE_HOME_P): Delete.
(struct gdbarch_tdep): Remove mips_regs_have_home_p field.
(mips_gdbarch_init): Set gdbarch push_arguments for eabi.
Delete references to mips_regs_have_home_p.
* mips-tdep.c (mips_o32o64_push_arguments): New function,
cloned from mips_push_arguments, tuned for o32/o64 ABI.
(mips_gdbarch_init): Set gdbarch_push_arguments to new func.
* mips-tdep.c (ROUND_DOWN, ROUND_UP): Move to global scope.
(mips_push_arguments): Correct some comments. Use paddr_nz
for printing addresses in debug output. Replace static
allocation using MAX_REGISTER_RAW_SIZE with alloca.
(mips_n32n64_push_arguments): New function, cloned from
mips_push_arguments and tuned for the n32/n64 ABI.
(mips_push_register): Buffer needs dynamic allocation.
(mips_print_register): Ditto.
(do_gp_register_row): Ditto.
(mips_store_return_value): Ditto.
(mips_gdbarch_init): Set gdbarch_push_arguments per ABI.
* mips-tdep.c (mips_find_saved_regs): Adjust stack according
to MIPS_SAVED_REGSIZE, not GDB_TARGET_IS_MIPS64. Enhance comment.
(mips_gdbarch_init): Set N32 target to be mips64.
* mips-tdep.c (enum mips_abi): Explicitly start at 0. Add
MIPS_ABI_LAST.
(mips_abi_string, mips_abi_strings): New.
(struct gdbarch_tdep): Remove mips_abi_string, add found_abi.
(mips_gdbarch_init): Set tdep->found_abi. Don't set
tdep->mips_abi_string. Honor mips_abi_string. Default to
O32 if no ABI is found.
(mips_dump_tdep): Use mips_abi_strings.
(mips_abi_update): New function.
(_initialize_mips_tdep): Initialize mips_abi_string. Add
``set mips abi'' and ``show mips abi''. Check the size of
mips_abi_strings.
* mips-tdep.c (PROC_SYMBOL): Add warning comment.
(struct mips_objfile_private, compare_pdr_entries): New.
(non_heuristic_proc_desc): Read the ".pdr" section if it
is present.
(COMMON_OBS): Add osabi.o.
(osabi.o): New dependency list.
* osabi.c: New file.
* osabi.h: New file.
* doc/gdbint.texinfo: Document new generic OS ABI framework.
* Makefile.in (alpha_tdep_h): Define and use instead of
alpha-tdep.h.
* alpha-tdep.c (alpha_abi_names, process_note_abi_tag_sections,
get_elfosabi, alpha_abi_handler_list, alpha_gdbarch_register_os_abi):
Remove.
(alpha_gdbarch_init, alpha_dump_tdep): Use generic OS ABI framework.
* alpha-tdep.h: Include osabi.h.
(alpha_abi): Remove.
(gdbarch_tdep): Use generic OS ABI framework.
* alpha-linux-tdep.c (_initialize_alpha_linux_tdep): Use
gdbarch_register_osabi.
* alpha-osf1-tdep.c (_initialize_alpha_osf1_tdep): Likewise.
* alphafbsd-tdep.c (_initialize_alphafbsd_tdep): Likewise.
* alphanbsd-tdep.c (_initialize_alphanbsd_tdep): Likewise.
* Makefile.in (sh_tdep_h): Add osabi.h.
* sh-tdep.h (sh_osabi): Remove.
(gdbarch_tdep): Use generic OS ABI framework.
* sh-tdep.c (sh_osabi_names, process_note_abi_tag_sections,
sh_osabi_handler_list, sh_gdbarch_register_os_abi): Remove.
(sh_gdbarch_init, sh_dump_tdep): Use generic OS ABI framework.
* shnbsd-tdep.c (_initialize_shnbsd_tdep): Use gdbarch_register_osabi.
* Makefile.in (arm_tdep_h): Define and use instead of arm-tdep.h.
* arm-linux-tdep.c (_initialize_arm_linux_tdep): Use
gdbarch_register_osabi.
* arm-tdep.c (arm_abi_names, process_note_abi_tag_sections,
arm_abi_handler_list, arm_gdbarch_register_os_abi): Remove.
(get_elfosabi): Rename to...
(arm_elf_osabi_sniffer): ...this. Adjust to use generic OS
ABI framework support routines.
(arm_gdbarch_init): Use generic OS ABI framework.
(arm_dump_tdep): Likewise.
(_initialize_arm_tdep): Likewise.
* arm-tdep.h: Include osabi.h.
(arm_abi): Remove.
(gdbarch_tdep): Remove arm_abi and abi_name members. Add
osabi member.
(arm_gdbarch_register_os_abi): Remove prototype.
* armnbsd-tdep.c (arm_netbsd_aout_osabi_sniffer): New function.
(_initialize_arm_netbsd_tdep): Use gdbarch_register_osabi.
* Makefile.in (mips-tdep.o): Add osabi.h to dependency list.
* mips-tdep.c: Include osabi.h.
(gdbarch_tdep, mips_gdbarch_init, mips_dump_tdep): Use generic
OS ABI framework.
* mips-tdep.c (mips_float_register_type): New function.
(mips_double_register_type): New function.
(mips_print_register): Use them.
(do_fp_register_row): Likewise.
