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Add sp_regnum_from_eax/pc_regnum_from_eax to i386 gdbarch_tdep

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* amd64-tdep.c (amd64_x32_init_abi): Set sp_regnum_from_eax to
	AMD64_RSP_REGNUM and pc_regnum_from_eax to AMD64_RIP_REGNUM.

	* i386-tdep.c (i386_gdbarch_init): Initialize sp_regnum_from_eax
	and pc_regnum_from_eax to -1.  Update SP regnum from
	sp_regnum_from_eax and PC regnum from pc_regnum_from_eax if
	needed.

	* i386-tdep.h (gdbarch_tdep): Add sp_regnum_from_eax and
	pc_regnum_from_eax.
This commit is contained in:
H.J. Lu
2012-07-04 20:46:20 +00:00
parent f9cf0f4ab2
commit 23e2d720d1
4 changed files with 35 additions and 0 deletions
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13
gdb/ChangeLog
View File

@@ -1,3 +1,16 @@
2012-07-04 H.J. Lu <hongjiu.lu@intel.com>
* amd64-tdep.c (amd64_x32_init_abi): Set sp_regnum_from_eax to
AMD64_RSP_REGNUM and pc_regnum_from_eax to AMD64_RIP_REGNUM.
* i386-tdep.c (i386_gdbarch_init): Initialize sp_regnum_from_eax
and pc_regnum_from_eax to -1. Update SP regnum from
sp_regnum_from_eax and PC regnum from pc_regnum_from_eax if
needed.
* i386-tdep.h (gdbarch_tdep): Add sp_regnum_from_eax and
pc_regnum_from_eax.
2012-07-03 Jan Kratochvil <jan.kratochvil@redhat.com>
Fix 'warning: parameter has incomplete type' with gcc-3.4.6.

3
gdb/amd64-tdep.c
View File

@@ -2946,6 +2946,9 @@ amd64_x32_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
tdesc = tdesc_x32;
tdep->tdesc = tdesc;
tdep->sp_regnum_from_eax = AMD64_RSP_REGNUM;
tdep->pc_regnum_from_eax = AMD64_RIP_REGNUM;
tdep->num_dword_regs = 17;
set_tdesc_pseudo_register_type (gdbarch, amd64_x32_pseudo_register_type);

11
gdb/i386-tdep.c
View File

@@ -7805,6 +7805,9 @@ i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
tdep->num_mmx_regs = 8;
tdep->num_ymm_regs = 0;
tdep->sp_regnum_from_eax = -1;
tdep->pc_regnum_from_eax = -1;
tdesc_data = tdesc_data_alloc ();
set_gdbarch_relocate_instruction (gdbarch, i386_relocate_instruction);
@@ -7849,6 +7852,14 @@ i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
/* Support dword pseudo-register if it hasn't been disabled. */
tdep->eax_regnum = ymm0_regnum;
ymm0_regnum += tdep->num_dword_regs;
if (tdep->sp_regnum_from_eax != -1)
set_gdbarch_sp_regnum (gdbarch,
(tdep->eax_regnum
+ tdep->sp_regnum_from_eax));
if (tdep->pc_regnum_from_eax != -1)
set_gdbarch_pc_regnum (gdbarch,
(tdep->eax_regnum
+ tdep->pc_regnum_from_eax));
}
else
tdep->eax_regnum = -1;

8
gdb/i386-tdep.h
View File

@@ -149,6 +149,14 @@ struct gdbarch_tdep
of pseudo dword register support. */
int eax_regnum;
/* Register number for SP, relative to %eax. Set this to -1 to
indicate the absence of pseudo SP register support. */
int sp_regnum_from_eax;
/* Register number for PC, relative to %eax. Set this to -1 to
indicate the absence of pseudo PC register support. */
int pc_regnum_from_eax;
/* Number of core registers. */
int num_core_regs;