From 954b40bf630ed9a1d329438b8ab75bf9af0184b8 Mon Sep 17 00:00:00 2001
From: Dawn Perchik <dawn@burble.org>
Date: Tue, 5 Jan 2016 19:51:51 +0000
Subject: Add support for "source info" and use it to fix MI's
 -symbol-list-lines.

This patch adds support the command 'source info' as follows:
    (lldb) help source info
         Display source line information (as specified) based on the current executable's
         debug info.

    Syntax: source info <cmd-options>

    Command Options Usage:
      source info [-c <count>] [-s <shlib-name>] [-f <filename>] [-l <linenum>] [-e <linenum>]
      source info [-c <count>] [-s <shlib-name>] [-n <symbol>]
      source info [-c <count>] [-a <address-expression>]

           -a <address-expression> ( --address <address-expression> )
                Lookup the address and display the source information for the corresponding
                file and line.

           -c <count> ( --count <count> )
                The number of line entries to display.

           -e <linenum> ( --end-line <linenum> )
                The line number at which to stop displaying lines.

           -f <filename> ( --file <filename> )
                The file from which to display source.

           -l <linenum> ( --line <linenum> )
                The line number at which to start the displaying lines.

           -n <symbol> ( --name <symbol> )
                The name of a function whose source to display.

           -s <shlib-name> ( --shlib <shlib-name> )
                Look up the source in the given module or shared library (can be specified
                more than once).
For example:
    (lldb) source info --file x.h
    Lines for file x.h in compilation unit x.cpp in `x
    [0x0000000100000d00-0x0000000100000d10): /Users/dawn/tmp/./x.h:10
    [0x0000000100000d10-0x0000000100000d1b): /Users/dawn/tmp/./x.h:10

The new options are used to fix the MI command:
    -symbol-list-lines <file>
which didn't work for header files because it called:
    target modules dump line-table <file>
which only dumps line tables for a compilation unit.

The patch also fixes a bug in the error reporting when no files were supplied to the command. Previously you'd get:
    (lldb) target modules dump line-table
    error:
    Syntax:
    error: no source filenames matched any command arguments
Now you get:
    error: file option must be specified.

Reviewed by: clayborg, jingham, ki.stfu
Subscribers: lldb-commits
Differential Revision: http://reviews.llvm.org/D15593

llvm-svn: 256863
---
 lldb/packages/Python/lldbsuite/test/help/TestHelp.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lldb/packages/Python/lldbsuite/test/help/TestHelp.py')

diff --git a/lldb/packages/Python/lldbsuite/test/help/TestHelp.py b/lldb/packages/Python/lldbsuite/test/help/TestHelp.py
index b145cf63f62..783cbff4c1c 100644
--- a/lldb/packages/Python/lldbsuite/test/help/TestHelp.py
+++ b/lldb/packages/Python/lldbsuite/test/help/TestHelp.py
@@ -137,7 +137,7 @@ class HelpCommandTestCase(TestBase):
         """Command 'help image du line' is not ambiguous and should work."""
         # 'image' is an alias for 'target modules'.
         self.expect("help image du line",
-            substrs = ['Dump the line table for one or more compilation units'])
+            substrs = ['Dump the line table for one or more files'])
 
     @no_debug_info_test
     def test_help_target_variable_syntax(self):
-- 
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