Re: [PATCH 1/4] Support the new BookE ptrace interface

[Joel Brobecker <brobecker@adacore.com>]

> 2010-01-16  Sergio Durigan Junior  <sergiodj@linux.vnet.ibm.com>
>             Thiago Jung Bauermann  <bauerman@br.ibm.com>
> 
>         * ppc-linux-nat.c (PTRACE_GET_DEBUGREG): Update comment.
>         (PPC_PTRACE_GETWDBGINFO, PPC_PTRACE_SETHWDEBUG, PPC_PTRACE_DELHWDEBUG,
>         ppc_debug_info, PPC_DEBUG_FEATURE_INSN_BP_RANGE,
>         PPC_DEBUG_FEATURE_INSN_BP_MASK, PPC_DEBUG_FEATURE_DATA_BP_RANGE,
>         PPC_DEBUG_FEATURE_DATA_BP_MASK, ppc_hw_breakpoint,
>         PPC_BREAKPOINT_TRIGGER_EXECUTE, PPC_BREAKPOINT_TRIGGER READ,
>         PPC_BREAKPOINT_TRIGGER_WRITE, PPC_BREAKPOINT_TRIGGER_RW,
>         PPC_BREAKPOINT_MODE_EXACT PPC_BREAKPOINT_MODE_RANGE_INCLUSIVE,
>         PPC_BREAKPOINT_MODE_RANGE_EXCLUSIVE, PPC_BREAKPOINT_MODE_MASK,
>         PPC_BREAKPOINT_CONDITION_NONE, PPC_BREAKPOINT_CONDITION_AND,
>         PPC_BREAKPOINT_CONDITION_EXACT, PPC_BREAKPOINT_CONDITION_OR,
>         PPC_BREAKPOINT_CONDITION_AND_OR, PPC_BREAKPOINT_CONDITION_BE_ALL,
>         PPC_BREAKPOINT_CONDITION_BE_SHIFT, PPC_BREAKPOINT_CONDITION_BE):
>         Define, in case <ptrace.h> doesn't provide it.
>         (have_ptrace_new_debug_booke): New global.
>         (ppc_linux_check_watch_resources): Renamed to ...
>         (ppc_linux_can_use_hw_breakpoint): ... this.  Handle BookE processors.
>         (booke_debug_info): New variable.
>         (max_slots_number): Ditto.
>         (hw_break_tuple): New struct.
>         (thread_points): Ditto.
>         (ppc_threads): New variable.
>         (PPC_DEBUG_CURRENT_VERSION): New define.
>         (ppc_linux_region_ok_for_hw_watchpoint): Handle BookE processors.
>         (booke_cmp_hw_point): New function.
>         (booke_find_thread_points_by_tid): Ditto.
>         (booke_insert_point): Ditto.
>         (booke_remove_point): Ditto.
>         (ppc_linux_insert_hw_breakpoint): Ditto.
>         (ppc_linux_remove_hw_breakpoint): Ditto.
>         (ppc_linux_insert_watchpoint): Handle BookE processors.
>         (ppc_linux_remove_watchpoint): Ditto.
>         (ppc_linux_new_thread): Ditto.
>         (ppc_linux_stopped_data_address): Ditto.
>         (ppc_linux_watchpoint_addr_within_range): Ditto.
>         (ppc_linux_read_description): Query the target to know if it
>         supports the new kernel BookE interface.
>         (_initialize_ppc_linux_nat): Initialize to_insert_hw_breakpoint and
>         to_remove_hw_breakpoint fields of the target operations struct.

Approved :).

Now the *real* fun can begin, right? (designing the support for h/w
accelerated watchpoint conditions)

;-)

-- 
Joel