gdb/mi: add regexp filtering to -file-list-exec-source-files

This commit extends the existing MI command
-file-list-exec-source-files to provide the same regular expression
based filtering that the equivalent CLI command "info sources"
provides.

The new command syntax is:

  -file-list-exec-source-files [--basename | --dirname] [--] [REGEXP]

All options are optional, which ensures the command is backward
compatible.

As part of this work I have unified the CLI and MI code.

As a result of the unified code I now provide additional information
in the MI command output, there is now a new field 'debug-fully-read'
included with each source file.  This field which has the values
'true' or 'false', indicates if the source file is from a compilation
unit that has had its debug information fully read.  However, as this
is additional information, a well written front-end should just ignore
this field if it doesn't understand it, so things should still be
backward compatible.

gdb/ChangeLog:

	* NEWS: Mention additions to -file-list-exec-source-files.
	* mi/mi-cmd-file.c (print_partial_file_name): Delete.
	(mi_cmd_file_list_exec_source_files): Rewrite to handle command
	options, and make use of info_sources_worker.
	* symtab.c (struct info_sources_filter): Moved to symtab.h.
	(info_sources_filter::print): Take uiout argument, produce output
	through uiout.
	(struct output_source_filename_data)
	<output_source_filename_data>: Take uiout argument, store into
	m_uiout.  <output>: Rewrite comment, add additional arguments to
	declaration.  <operator()>: Send more arguments to
	output. <m_uiout>: New member variable.
	(output_source_filename_data::output): Take extra arguments,
	produce output through m_uiout, and structure for MI.
	(output_source_filename_data::print_header): Produce output
	through m_uiout.
	(info_sources_worker): New function, the implementation is taken
	from info_sources_command, but modified so produce output through
	a ui_out.
	(info_sources_command): The second half of this function has gone
	to become info_sources_worker.
	* symtab.h (struct info_sources_filter): Moved from symtab.c, add
	extra parameter to print member function.
	(info_sources_worker): Declare.

gdb/doc/ChangeLog:

	* gdb.texinfo (GDB/MI File Commands): Document extensions to
	-file-list-exec-source-files.

gdb/testsuite/ChangeLog:

	* gdb.dwarf2/dw2-filename.exp: Update expected results.
	* gdb.mi/mi-file.exp: Likewise.
	* gdb.mi/mi-info-sources-base.c: New file.
	* gdb.mi/mi-info-sources.c: New file.
	* gdb.mi/mi-info-sources.exp: New file.

1 files changed, 18 insertions, 0 deletions

diff --git a/gdb/NEWS b/gdb/NEWS
index aae3b49..8d79c50 100644
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -49,6 +49,24 @@
     all locations of the selected breakpoint.  This is equivalent to
     the '-force' flag of the CLI's "cond" command.
 
+ ** '-file-list-exec-source-files [--basename | --dirname] [--] [REGEXP]'
+
+    The existing -file-list-exec-source-files command now takes an
+    optional REGEXP which is used to filter the source files that are
+    included in the results.
+
+    By default REGEXP is matched against the full filename of the
+    source file. When one of --basename or --dirname is given then
+    REGEXP is only matched against the specified part of the full
+    source filename.
+
+    The results from -file-list-exec-source-files now include a
+    'debug-fully-read' field which takes the value 'true' or 'false'.
+    A 'true' value indicates the source file is from a compilation
+    unit that has had its debug information fully read in by GDB, a
+    value of 'false' indicates GDB has only performed a partial scan
+    of the debug information so far.
+
 * GDB now supports core file debugging for x86_64 Cygwin programs.
 
 * GDB will now look for the .gdbinit file in a config directory before