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Support x86 pseudo byte, word and dword registers.

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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.
This commit is contained in:
H.J. Lu
2010-03-02 13:14:36 +00:00
parent 5488d830ec
commit 1ba53b71ca
12 changed files with 1120 additions and 42 deletions
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37
gdb/i386-tdep.h
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@@ -114,10 +114,32 @@ struct gdbarch_tdep
absence of an FPU. */
int st0_regnum;
/* Number of MMX registers. */
int num_mmx_regs;
/* Register number for %mm0. Set this to -1 to indicate the absence
of MMX support. */
int mm0_regnum;
/* Number of byte registers. */
int num_byte_regs;
/* Register pseudo number for %al. */
int al_regnum;
/* Number of pseudo word registers. */
int num_word_regs;
/* Register number for %ax. */
int ax_regnum;
/* Number of pseudo dword registers. */
int num_dword_regs;
/* Register number for %eax. Set this to -1 to indicate the absence
of pseudo dword register support. */
int eax_regnum;
/* Number of core registers. */
int num_core_regs;
@@ -250,6 +272,21 @@ enum record_i386_regnum
/* Types for i386-specific registers. */
extern struct type *i387_ext_type (struct gdbarch *gdbarch);
/* Checks of different pseudo-registers. */
extern int i386_byte_regnum_p (struct gdbarch *gdbarch, int regnum);
extern int i386_word_regnum_p (struct gdbarch *gdbarch, int regnum);
extern int i386_dword_regnum_p (struct gdbarch *gdbarch, int regnum);
extern const char *i386_pseudo_register_name (struct gdbarch *gdbarch,
int regnum);
extern void i386_pseudo_register_read (struct gdbarch *gdbarch,
struct regcache *regcache,
int regnum, gdb_byte *buf);
extern void i386_pseudo_register_write (struct gdbarch *gdbarch,
struct regcache *regcache,
int regnum, const gdb_byte *buf);
/* Segment selectors. */
#define I386_SEL_RPL 0x0003 /* Requester's Privilege Level mask. */
#define I386_SEL_UPL 0x0003 /* User Privilige Level. */