diff options
Diffstat (limited to 'gdb/source.c')
| -rw-r--r-- | gdb/source.c | 48 |
1 files changed, 41 insertions, 7 deletions
diff --git a/gdb/source.c b/gdb/source.c index f865c8a..1f10379 100644 --- a/gdb/source.c +++ b/gdb/source.c @@ -1331,13 +1331,8 @@ print_source_lines_base (struct symtab *s, int line, int stopline, last_source_error = 0; /* If the user requested a sequence of lines that seems to go backward - (from high to low line numbers) then we don't print anything. - The use of '- 1' here instead of '<=' is currently critical, we rely - on the undefined wrap around behaviour of 'int' for stopline. When - the use has done: 'set listsize unlimited' then stopline can overflow - and appear as MIN_INT. This is a long-standing bug that needs - fixing. */ - if (stopline - 1 < line) + (from high to low line numbers) then we don't print anything. */ + if (stopline <= line) return; std::string lines; @@ -1399,6 +1394,18 @@ print_source_lines (struct symtab *s, int line, int stopline, { print_source_lines_base (s, line, stopline, flags); } + +/* See source.h. */ + +void +print_source_lines (struct symtab *s, source_lines_range line_range, + print_source_lines_flags flags) +{ + print_source_lines_base (s, line_range.startline (), + line_range.stopline (), flags); +} + + /* Print info on range of pc's in a specified line. */ @@ -1822,6 +1829,33 @@ set_substitute_path_command (const char *args, int from_tty) forget_cached_source_info (); } +/* See source.h. */ + +source_lines_range::source_lines_range (int startline, + source_lines_range::direction dir) +{ + if (dir == source_lines_range::FORWARD) + { + LONGEST end = static_cast <LONGEST> (startline) + get_lines_to_list (); + + if (end > INT_MAX) + end = INT_MAX; + + m_startline = startline; + m_stopline = static_cast <int> (end); + } + else + { + LONGEST start = static_cast <LONGEST> (startline) - get_lines_to_list (); + + if (start < 1) + start = 1; + + m_startline = static_cast <int> (start); + m_stopline = startline; + } +} + void _initialize_source (void) |