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Re: [RFC, v2] ARM support for Hardware breakpoints and watchpoints for native Linux.


> ChangeLog:
> 
> 	* arm-linux-nat.c: Include "observer.h" and "gdbthread.h".
> 	(PTRACE_GETHBPREGS, PTRACE_SETHBPREGS): Define.
> 	(struct arm_linux_hwbp_cap): New type.
> 	(arm_linux_get_hwbp_cap): New function.
> 	(arm_linux_get_hw_breakpoint_count): Likewise.
> 	(arm_linux_get_hw_watchpoint_count): Likewise.
> 	(arm_linux_can_use_hw_breakpoint): Likewise.
> 	(arm_hwbp_type): New type.
> 	(arm_hwbp_control_t): Likewise.
> 	(struct arm_linux_hw_breakpoint): Likewise.
> 	(struct arm_linux_thread_points): Likewise.
> 	(arm_threads): New global variable.
> 	(arm_linux_find_breakpoints_by_tid): New function.
> 	(arm_hwbp_control_initialize): Likewise.
> 	(arm_hwbp_control_is_enabled): Likewise.
> 	(arm_hwbp_control_disable): Likewise.
> 	(arm_linux_hw_breakpoint_initialize): Likewise.
> 	(arm_linux_get_hwbp_type): Likewise.
> 	(arm_linux_hw_watchpoint_initialize): Likewise.
> 	(arm_linux_hw_breakpoint_equal): Likewise.
> 	(arm_linux_insert_hw_breakpoint1): Likewise.
> 	(arm_linux_remove_hw_breakpoint1): Likewise.
> 	(arm_linux_insert_hw_breakpoint): Likewise.
> 	(arm_linux_remove_hw_breakpoint): Likewise.
> 	(arm_linux_region_ok_for_hw_watchpoint): Likewise.
> 	(arm_linux_insert_watchpoint): Likewise.
> 	(arm_linux_remove_watchpoint): Likewise.
> 	(arm_linux_stopped_data_address): Likewise.
> 	(arm_linux_stopped_by_watchpoint): Likewise.
> 	(arm_linux_watchpoint_addr_within_range): Likewise.
> 	(arm_linux_new_thread): Likewise.
> 	(arm_linux_thread_exit): Likewise.
> 	(_initialize_arm_linux_nat): Install hardware breakpoint/watchpoint
> 	related target callbacks.  Register arm_linux_new_thread and
> 	arm_linux_thread_exit.
> 	* arm-tdep.h (arm_pc_is_thumb): Add prototype.
> 	* arm-tdep.c (arm_pc_is_thumb): Make global.
> 	(arm_gdbarch_init): Call set_gdbarch_have_nonsteppable_watchpoint.
> 
> testsuite/ChangeLog:
> 
> 	* lib/gdb.exp (skip_hw_breakpoint_tests): Add arm*-*-* target.
> 	(skip_hw_watchpoint_tests): Likewise.
> 	(skip_hw_watchpoint_multi_tests): Likewise.

And I've checked this in as well.

Bye,
Ulrich

-- 
  Dr. Ulrich Weigand
  GNU Toolchain for Linux on System z and Cell BE
  Ulrich.Weigand@de.ibm.com


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