aarch64: PR 19806: watchpoints: false negatives + PR 20207 contiguous ones

[deliverable/binutils-gdb.git] / gdb / ChangeLog

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+2018-05-04  Jan Kratochvil  <jan.kratochvil@redhat.com>
+           Pedro Alves <palves@redhat.com>
+
+       PR breakpoints/19806 and support for PR external/20207.
+       * NEWS: Mention Aarch64 watchpoint improvements.
+       * aarch64-linux-nat.c (aarch64_linux_stopped_data_address): Fix missed
+       watchpoints and PR external/20207 watchpoints.
+       * nat/aarch64-linux-hw-point.c
+       (kernel_supports_any_contiguous_range): New.
+       (aarch64_watchpoint_offset): New.
+       (aarch64_watchpoint_length): Support PR external/20207 watchpoints.
+       (aarch64_point_encode_ctrl_reg): New parameter offset, new asserts.
+       (aarch64_point_is_aligned): Support PR external/20207 watchpoints.
+       (aarch64_align_watchpoint): New parameters aligned_offset_p and
+       next_addr_orig_p.  Support PR external/20207 watchpoints.
+       (aarch64_downgrade_regs): New.
+       (aarch64_dr_state_insert_one_point): New parameters offset and
+       addr_orig.
+       (aarch64_dr_state_remove_one_point): Likewise.
+       (aarch64_handle_breakpoint): Update caller.
+       (aarch64_handle_aligned_watchpoint): Likewise.
+       (aarch64_handle_unaligned_watchpoint): Support addr_orig and
+       aligned_offset.
+       (aarch64_linux_set_debug_regs): Remove const from state.  Call
+       aarch64_downgrade_regs.
+       (aarch64_show_debug_reg_state): Print also dr_addr_orig_wp.
+       * nat/aarch64-linux-hw-point.h (DR_CONTROL_LENGTH): Rename to ...
+       (DR_CONTROL_MASK): ... this.
+       (struct aarch64_debug_reg_state): New field dr_addr_orig_wp.
+       (unsigned int aarch64_watchpoint_offset): New prototype.
+       (aarch64_linux_set_debug_regs): Remove const from state.
+       * utils.c (align_up, align_down): Move to ...
+       * common/common-utils.c (align_up, align_down): ... here.
+       * utils.h (align_up, align_down): Move to ...
+       * common/common-utils.h (align_up, align_down): ... here.
+
 2018-05-04  Joel Brobecker  <brobecker@adacore.com>
 
        * sparc-tdep.c (sparc_structure_return_p): Re-implement to