/* TUI display source window.
- Copyright (C) 1998-2019 Free Software Foundation, Inc.
+ Copyright (C) 1998-2020 Free Software Foundation, Inc.
Contributed by Hewlett-Packard Company.
#include "gdb_curses.h"
/* Function to display source in the source window. */
-enum tui_status
+bool
tui_source_window::set_contents (struct gdbarch *arch,
- struct symtab *s,
- struct tui_line_or_address line_or_addr)
+ const struct symtab_and_line &sal)
{
- gdb_assert (line_or_addr.loa == LOA_LINE);
- int line_no = line_or_addr.u.line_no;
+ struct symtab *s = sal.symtab;
+ int line_no = sal.line;
- enum tui_status ret = TUI_FAILURE;
+ if (s == NULL)
+ return false;
- if (s != NULL)
- {
- int line_width, nlines;
+ int line_width, nlines;
- ret = TUI_SUCCESS;
- line_width = width - TUI_EXECINFO_SIZE - 1;
- /* Take hilite (window border) into account, when
- calculating the number of lines. */
- nlines = (line_no + (height - 2)) - line_no;
+ line_width = width - TUI_EXECINFO_SIZE - 1;
+ /* Take hilite (window border) into account, when
+ calculating the number of lines. */
+ nlines = (line_no + (height - 2)) - line_no;
- std::string srclines;
- const std::vector<off_t> *offsets;
- if (!g_source_cache.get_source_lines (s, line_no, line_no + nlines,
- &srclines)
- || !g_source_cache.get_line_charpos (s, &offsets))
- ret = TUI_FAILURE;
- else
- {
- int cur_line_no, cur_line;
- struct tui_locator_window *locator
- = tui_locator_win_info_ptr ();
- const char *s_filename = symtab_to_filename_for_display (s);
-
- title = s_filename;
-
- m_fullname = make_unique_xstrdup (symtab_to_fullname (s));
-
- cur_line = 0;
- gdbarch = get_objfile_arch (SYMTAB_OBJFILE (s));
- start_line_or_addr.loa = LOA_LINE;
- cur_line_no = start_line_or_addr.u.line_no = line_no;
-
- int digits = 0;
- if (compact_source)
- {
- double l = log10 (offsets->size ());
- digits = 1 + (int) l;
- }
-
- const char *iter = srclines.c_str ();
- content.resize (nlines);
- while (cur_line < nlines)
- {
- struct tui_source_element *element
- = &content[cur_line];
-
- std::string text;
- if (*iter != '\0')
- text = tui_copy_source_line (&iter, cur_line_no,
- horizontal_offset,
- line_width, digits);
-
- /* Set whether element is the execution point
- and whether there is a break point on it. */
- element->line_or_addr.loa = LOA_LINE;
- element->line_or_addr.u.line_no = cur_line_no;
- element->is_exec_point
- = (filename_cmp (locator->full_name.c_str (),
- symtab_to_fullname (s)) == 0
- && cur_line_no == locator->line_no);
-
- content[cur_line].line = std::move (text);
-
- cur_line++;
- cur_line_no++;
- }
- ret = TUI_SUCCESS;
- }
+ std::string srclines;
+ const std::vector<off_t> *offsets;
+ if (!g_source_cache.get_source_lines (s, line_no, line_no + nlines,
+ &srclines)
+ || !g_source_cache.get_line_charpos (s, &offsets))
+ return false;
+
+ int cur_line_no, cur_line;
+ struct tui_locator_window *locator
+ = tui_locator_win_info_ptr ();
+ const char *s_filename = symtab_to_filename_for_display (s);
+
+ title = s_filename;
+
+ m_fullname = make_unique_xstrdup (symtab_to_fullname (s));
+
+ cur_line = 0;
+ gdbarch = get_objfile_arch (SYMTAB_OBJFILE (s));
+ start_line_or_addr.loa = LOA_LINE;
+ cur_line_no = start_line_or_addr.u.line_no = line_no;
+
+ int digits = 0;
+ if (compact_source)
+ {
+ /* Solaris 11+gcc 5.5 has ambiguous overloads of log10, so we
+ cast to double to get the right one. */
+ double l = log10 ((double) offsets->size ());
+ digits = 1 + (int) l;
}
- return ret;
-}
+ const char *iter = srclines.c_str ();
+ content.resize (nlines);
+ while (cur_line < nlines)
+ {
+ struct tui_source_element *element
+ = &content[cur_line];
+
+ std::string text;
+ if (*iter != '\0')
+ text = tui_copy_source_line (&iter, cur_line_no,
+ horizontal_offset,
+ line_width, digits);
+
+ /* Set whether element is the execution point
+ and whether there is a break point on it. */
+ element->line_or_addr.loa = LOA_LINE;
+ element->line_or_addr.u.line_no = cur_line_no;
+ element->is_exec_point
+ = (filename_cmp (locator->full_name.c_str (),
+ symtab_to_fullname (s)) == 0
+ && cur_line_no == locator->line_no);
+
+ content[cur_line].line = std::move (text);
+
+ cur_line++;
+ cur_line_no++;
+ }
-/* Function to display source in the source window. This function
- initializes the horizontal scroll to 0. */
-void
-tui_source_window::show_symtab_source (struct gdbarch *gdbarch,
- struct symtab *s,
- struct tui_line_or_address line)
-{
- horizontal_offset = 0;
- update_source_window_as_is (gdbarch, s, line);
+ return true;
}
{
if (!content.empty ())
{
- struct tui_line_or_address l;
struct symtab *s;
struct symtab_and_line cursal = get_current_source_symtab_and_line ();
+ struct gdbarch *arch = gdbarch;
if (cursal.symtab == NULL)
- s = find_pc_line_symtab (get_frame_pc (get_selected_frame (NULL)));
+ {
+ struct frame_info *fi = get_selected_frame (NULL);
+ s = find_pc_line_symtab (get_frame_pc (fi));
+ arch = get_frame_arch (fi);
+ }
else
s = cursal.symtab;
- l.loa = LOA_LINE;
- l.u.line_no = content[0].line_or_addr.u.line_no
- + num_to_scroll;
+ int line_no = start_line_or_addr.u.line_no + num_to_scroll;
const std::vector<off_t> *offsets;
if (g_source_cache.get_line_charpos (s, &offsets)
- && l.u.line_no > offsets->size ())
- /* line = s->nlines - win_info->content_size + 1; */
- /* elz: fix for dts 23398. */
- l.u.line_no = content[0].line_or_addr.u.line_no;
- if (l.u.line_no <= 0)
- l.u.line_no = 1;
-
- print_source_lines (s, l.u.line_no, l.u.line_no + 1, 0);
+ && line_no > offsets->size ())
+ line_no = start_line_or_addr.u.line_no;
+ if (line_no <= 0)
+ line_no = 1;
+
+ cursal.line = line_no;
+ update_source_window (arch, cursal);
}
}
bool
tui_source_window::line_is_displayed (int line) const
{
- bool is_displayed = false;
- int threshold = SCROLL_THRESHOLD;
- int i = 0;
- while (i < content.size () - threshold && !is_displayed)
+ if (content.size () < SCROLL_THRESHOLD)
+ return false;
+
+ for (size_t i = 0; i < content.size () - SCROLL_THRESHOLD; ++i)
{
- is_displayed
- = (content[i].line_or_addr.loa == LOA_LINE
- && content[i].line_or_addr.u.line_no == line);
- i++;
+ if (content[i].line_or_addr.loa == LOA_LINE
+ && content[i].line_or_addr.u.line_no == line)
+ return true;
}
- return is_displayed;
+ return false;
}
void
-tui_source_window::maybe_update (struct frame_info *fi, symtab_and_line sal,
- int line_no, CORE_ADDR addr)
+tui_source_window::maybe_update (struct frame_info *fi, symtab_and_line sal)
{
- int start_line = (line_no - (viewport_height / 2)) + 1;
+ int start_line = (sal.line - ((height - 2) / 2)) + 1;
if (start_line <= 0)
start_line = 1;
bool source_already_displayed = (sal.symtab != 0
&& showing_source_p (m_fullname.get ()));
- struct tui_line_or_address l;
-
- l.loa = LOA_LINE;
- l.u.line_no = start_line;
- if (!(source_already_displayed
- && line_is_displayed (line_no)))
- update_source_window (get_frame_arch (fi), sal.symtab, l);
+ if (!(source_already_displayed && line_is_displayed (sal.line)))
+ {
+ sal.line = start_line;
+ update_source_window (get_frame_arch (fi), sal);
+ }
else
{
- l.u.line_no = line_no;
+ struct tui_line_or_address l;
+
+ l.loa = LOA_LINE;
+ l.u.line_no = sal.line;
set_is_exec_point_at (l);
}
}
projects / deliverable / binutils-gdb.git / blobdiff