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X-Source-Cap: ZWx5bnJvYmk7ZWx5bnJvYmk7Ym94NTM3OS5ibHVlaG9zdC5jb20= X-Local-Domain: yes X-CMAE-Envelope: MS4xfD+ftO7MiWJbJ80mjbGOWXi7I37Sq2ViiACV9CW4fAzr6VCVDtn3OR8j9SfAp6Uk61fpVjdwd272a3XvttFU1Hto6XB8B5zSx6fbF6hzHnob7bDaPtbp UlZNuQTMAcolo2HCA8ehb4csdbxdju++6qx5/REgZ9u8khd0Bb4WHsgwybZfbS3qBPO/y7jOVUntU8olwJqwRSmggJko+5xt5EU= X-Spam-Status: No, score=-3023.0 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, GIT_PATCH_0, JMQ_SPF_NEUTRAL, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gdb-patches-bounces+patchwork=sourceware.org@sourceware.org After these restructurings, it should be clear that the rerender overload can be removed from the TUI register window. This is done by moving a bit more logic from show_registers into update_register_data. After this, update_register_data simply updates the internal state, and rerender will write to the screen. All the actual rendering work is done, ultimately, by display_registers_from. This split between updating the mode and rendering makes it clear that the recursive case can't happen any longer. --- gdb/tui/tui-regs.c | 55 ++++++++++++++++++++++++------------------------------ gdb/tui/tui-regs.h | 14 ++++++-------- 2 files changed, 30 insertions(+), 39 deletions(-) diff --git a/gdb/tui/tui-regs.c b/gdb/tui/tui-regs.c index 7b6b669fe51..5726dc3fea8 100644 --- a/gdb/tui/tui-regs.c +++ b/gdb/tui/tui-regs.c @@ -165,31 +165,33 @@ tui_data_window::first_reg_element_no_inline (int line_no) const and refresh the window. */ void tui_data_window::show_registers (const reggroup *group) +{ + update_register_data (group); + rerender (); +} + +/* Set the data window to display the registers of the register group + using the given frame. Values are refreshed only when + refresh_values_only is true. */ + +void +tui_data_window::update_register_data (const reggroup *group) { if (group == nullptr) group = general_reggroup; - if (target_has_registers () && target_has_stack () && target_has_memory ()) - update_register_data (group, get_selected_frame (nullptr)); - else + if (!target_has_registers () + || !target_has_stack () + || !target_has_memory ()) { - set_title (_("Registers")); + set_title (""); m_current_group = nullptr; m_regs_content.clear (); + return; } - rerender (false); -} - - -/* Set the data window to display the registers of the register group - using the given frame. Values are refreshed only when - refresh_values_only is true. */ + frame_info_ptr frame = get_selected_frame (nullptr); -void -tui_data_window::update_register_data (const reggroup *group, - frame_info_ptr frame) -{ m_current_group = group; /* Make a new title showing which group we display. */ @@ -222,6 +224,9 @@ tui_data_window::update_register_data (const reggroup *group, void tui_data_window::display_registers_from (int start_element_no) { + werase (handle.get ()); + check_and_display_highlight_if_needed (); + /* In case the regs window is not boxed, we'll write the last char in the last line here, causing a scroll, so prevent that. */ scrollok (handle.get (), FALSE); @@ -358,29 +363,18 @@ tui_data_window::erase_data_content (const char *prompt) x_pos = half_width - strlen (prompt); display_string (height / 2, x_pos, prompt); } - tui_wrefresh (handle.get ()); } /* See tui-regs.h. */ void -tui_data_window::rerender (bool toplevel) +tui_data_window::rerender () { if (m_regs_content.empty ()) - { - if (toplevel && has_stack_frames ()) - { - frame_info_ptr fi = get_selected_frame (NULL); - check_register_values (fi); - } - else - erase_data_content (_("[ Register Values Unavailable ]")); - } + erase_data_content (_("[ Register Values Unavailable ]")); else - { - erase_data_content (NULL); - display_registers_from (0); - } + display_registers_from (0); + tui_wrefresh (handle.get ()); } @@ -402,7 +396,6 @@ tui_data_window::do_scroll_vertical (int num_to_scroll) if (first_line >= 0) { first_line += num_to_scroll; - erase_data_content (NULL); display_registers_from_line (first_line); } } diff --git a/gdb/tui/tui-regs.h b/gdb/tui/tui-regs.h index 701b8707947..b31a5a3e5b8 100644 --- a/gdb/tui/tui-regs.h +++ b/gdb/tui/tui-regs.h @@ -56,7 +56,10 @@ struct tui_register_info /* The TUI registers window. */ struct tui_data_window : public tui_win_info { - tui_data_window () = default; + tui_data_window () + { + update_register_data (nullptr); + } DISABLE_COPY_AND_ASSIGN (tui_data_window); @@ -81,11 +84,7 @@ struct tui_data_window : public tui_win_info { } - void rerender (bool toplevel); - void rerender () override - { - rerender (true); - } + void rerender () override; private: @@ -110,8 +109,7 @@ struct tui_data_window : public tui_win_info display off the end of the register display. */ void display_reg_element_at_line (int start_element_no, int start_line_no); - void update_register_data (const reggroup *group, - frame_info_ptr frame); + void update_register_data (const reggroup *group); /* Answer the number of the last line in the regs display. If there are no registers (-1) is returned. */