Support x86 pseudo byte, word and dword registers.
gdb/
2010-03-02 H.J. Lu <hongjiu.lu@intel.com>
* amd64-tdep.c (amd64_byte_names): New.
(amd64_word_names): Likewise.
(amd64_dword_names): Likewise.
(amd64_pseudo_register_name): Likewise.
(amd64_pseudo_register_read): Likewise.
(amd64_pseudo_register_write): Likewise.
(amd64_init_abi): Set num_byte_regs, num_word_regs, num_dword_regs
and num_mmx_regs. Call set_gdbarch_pseudo_register_read,
set_gdbarch_pseudo_register_write and
set_tdesc_pseudo_register_name. Don't call
set_gdbarch_num_pseudo_regs. Don't set mm0_regnum.
* i386-tdep.c (i386_num_mmx_regs): Removed.
(i386_num_pseudo_regs): Likewise.
(i386_byte_names): New.
(i386_word_names): Likewise.
(i386_byte_regnum_p): Likewise.
(i386_word_regnum_p): Likewise.
(i386_mmx_regnum_p): Updated.
(i386_pseudo_register_name): Make it global. Handle byte and
word pseudo-registers.
(i386_pseudo_register_read): Likewise.
(i386_pseudo_register_write): Likewise.
(i386_pseudo_register_type): Handle byte, word and dword
pseudo-registers
(i386_register_reggroup_p): Don't include pseudo
registers, except for MXX, in any register groups. Don't
include pseudo byte, word, dword registers in general_reggroup.
(i386_gdbarch_init): Set num_byte_regs, num_word_regs,
num_dword_regs, al_regnum, ax_regnum and eax_regnum. Put MMX
pseudo-registers after word pseudo-registers. Call
set_gdbarch_num_pseudo_regs after calling gdbarch_init_osabi.
* i386-tdep.h (gdbarch_tdep): Add num_mmx_regs, num_byte_regs,
al_regnum, num_word_regs, ax_regnum, num_dword_regs and
eax_regnum.
(i386_byte_regnum_p): New.
(i386_word_regnum_p): Likewise.
(i386_dword_regnum_p): Likewise.
(i386_pseudo_register_name): Likewise.
(i386_pseudo_register_read): Likewise.
(i386_pseudo_register_write): Likewise.
gdb/testsuite/
2010-03-02 H.J. Lu <hongjiu.lu@intel.com>
* gdb.arch/amd64-byte.exp: New.
* gdb.arch/amd64-dword.exp: Likewise.
* gdb.arch/amd64-pseudo.c: Likewise.
* gdb.arch/amd64-word.exp: Likewise.
* gdb.arch/i386-byte.exp: Likewise.
* gdb.arch/i386-pseudo.c: Likewise.
* gdb.arch/i386-word.exp: Likewise.
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