[Bug gdb/18112] New: Search does not start at current line

["dpetras at gmx dot de" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=18112

            Bug ID: 18112
           Summary: Search does not start at current line
           Product: gdb
           Version: 7.9
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gdb
          Assignee: unassigned at sourceware dot org
          Reporter: dpetras at gmx dot de

When a program is suspended at a breakpoint and I search for a regex, then the
search does not start at the current line, but at the beginning of the source
file. To reproduce, set a breakpoint in the middle of a function and run your
program until the breakpoint is hit. Then do a
(gdb) serach .
GDB should print the next line after the breakpoint hit. But instead it prints
the first line of the file with the breakpoint hit.

I assume this goes back the the introduction of function
clear_lines_listed_range(void) in file gdb-7.9/gdb/source.c

A fix could look like this:

--- source.c    2015-03-10 16:29:20.000000000 +0100
+++ .BACKUP/source.c~    2015-02-20 18:11:44.000000000 +0100
@@ -1605,7 +1605,7 @@
   char *msg;
   struct cleanup *cleanups;

-  line = (last_line_listed!=0? last_line_listed : current_source_line) + 1;
+  line = last_line_listed + 1;

   msg = (char *) re_comp (regex);
   if (msg)
@@ -1694,7 +1694,7 @@
   char *msg;
   struct cleanup *cleanups;

-  line = (last_line_listed!=0? last_line_listed : current_source_line) - 1;
+  line = last_line_listed - 1;

   msg = (char *) re_comp (regex);
   if (msg)

Regards,
Dietmar

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