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* rs6000-tdep.c (rs6000_gdbarch_init): Setup displaced stepping

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*before* calling gdbarch_init_osabi.
	(rs6000_aix_init_osabi): Disable displaced stepping.
This commit is contained in:
Ulrich Weigand 2008-09-05 11:58:30 +00:00
parent b52323fa6f
commit 2454a0247b
3 changed files with 24 additions and 11 deletions
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6
gdb/ChangeLog
View File

@ -1,3 +1,9 @@
2008-09-05 Ulrich Weigand <uweigand@de.ibm.com>
* rs6000-tdep.c (rs6000_gdbarch_init): Setup displaced stepping
*before* calling gdbarch_init_osabi.
(rs6000_aix_init_osabi): Disable displaced stepping.
2008-09-05 Ulrich Weigand <uweigand@de.ibm.com>
* target.c (update_current_target): Do not inherit to_open

7
gdb/rs6000-aix-tdep.c
View File

@ -714,6 +714,13 @@ rs6000_aix_init_osabi (struct gdbarch_info info, struct gdbarch *gdbarch)
/* RS6000/AIX does not support PT_STEP. Has to be simulated. */
set_gdbarch_software_single_step (gdbarch, rs6000_software_single_step);
/* Displaced stepping is currently not supported in combination with
software single-stepping. */
set_gdbarch_displaced_step_copy_insn (gdbarch, NULL);
set_gdbarch_displaced_step_fixup (gdbarch, NULL);
set_gdbarch_displaced_step_free_closure (gdbarch, NULL);
set_gdbarch_displaced_step_location (gdbarch, NULL);
set_gdbarch_push_dummy_call (gdbarch, rs6000_push_dummy_call);
set_gdbarch_return_value (gdbarch, rs6000_return_value);
set_gdbarch_long_double_bit (gdbarch, 8 * TARGET_CHAR_BIT);

22
gdb/rs6000-tdep.c
View File

@ -3669,6 +3669,17 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
/* Frame handling. */
dwarf2_frame_set_init_reg (gdbarch, ppc_dwarf2_frame_init_reg);
/* Setup displaced stepping. */
set_gdbarch_displaced_step_copy_insn (gdbarch,
simple_displaced_step_copy_insn);
set_gdbarch_displaced_step_fixup (gdbarch, ppc_displaced_step_fixup);
set_gdbarch_displaced_step_free_closure (gdbarch,
simple_displaced_step_free_closure);
set_gdbarch_displaced_step_location (gdbarch,
displaced_step_at_entry_point);
set_gdbarch_max_insn_length (gdbarch, PPC_INSN_SIZE);
/* Hook in ABI-specific overrides, if they have been registered. */
info.target_desc = tdesc;
info.tdep_info = (void *) tdesc_data;
@ -3732,17 +3743,6 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
gdb_assert (gdbarch_num_regs (gdbarch)
+ gdbarch_num_pseudo_regs (gdbarch) == cur_reg);
/* Setup displaced stepping. */
set_gdbarch_displaced_step_copy_insn (gdbarch,
simple_displaced_step_copy_insn);
set_gdbarch_displaced_step_fixup (gdbarch, ppc_displaced_step_fixup);
set_gdbarch_displaced_step_free_closure (gdbarch,
simple_displaced_step_free_closure);
set_gdbarch_displaced_step_location (gdbarch,
displaced_step_at_entry_point);
set_gdbarch_max_insn_length (gdbarch, PPC_INSN_SIZE);
return gdbarch;
}