From 176761e530a96289fb5fed331272bc08ad4acf5b Mon Sep 17 00:00:00 2001
From: Greg Clayton <gclayton@apple.com>
Date: Tue, 19 Apr 2011 04:19:37 +0000
Subject: Added a new option to the "source list" command that allows us to see
 where line tables specify breakpoints can be set in the source. When dumping
 the source, the number of breakpoints that can be set on a source line are
 shown as a prefix:

(lldb) source list -f test.c -l1 -c222 -b
       1   	#include <stdio.h>
       2   	#include <sys/fcntl.h>
       3   	#include <unistd.h>
       4   	int
       5   	sleep_loop (const int num_secs)
[2]    6   	{
       7   	    int i;
[1]    8   	    for (i=0; i<num_secs; ++i)
       9   	    {
[1]    10  	        printf("%d of %i - sleep(1);\n", i, num_secs);
[1]    11  	        sleep(1);
       12  	    }
       13  	    return 0;
[1]    14  	}
       15
       16  	int
       17  	main (int argc, char const* argv[])
[1]    18  	{
[1]    19  	    printf("Process: %i\n\n", getpid());
[1]    20  	    puts("Press any key to continue..."); getchar();
[1]    21  	    sleep_loop (20);
       22  	    return 12;
[1]    23  	}

Above we can see there are two breakpoints for line 6 and one breakpoint for
lines 8, 10, 11, 14, 18, 19, 20, 21 and 23. All other lines have no line table
entries for them. This helps visualize the data provided in the debug
information without having to manually dump all line tables. It also includes
all inline breakpoint that may result for a given file which can also be very
handy to see.

llvm-svn: 129747
---
 lldb/source/Core/SourceManager.cpp | 29 +++++++++++++++++++++++------
 1 file changed, 23 insertions(+), 6 deletions(-)

(limited to 'lldb/source/Core/SourceManager.cpp')

diff --git a/lldb/source/Core/SourceManager.cpp b/lldb/source/Core/SourceManager.cpp
index a43b592c231..04a0d766c0f 100644
--- a/lldb/source/Core/SourceManager.cpp
+++ b/lldb/source/Core/SourceManager.cpp
@@ -15,6 +15,7 @@
 // Project includes
 #include "lldb/Core/DataBuffer.h"
 #include "lldb/Core/Stream.h"
+#include "lldb/Symbol/SymbolContext.h"
 
 using namespace lldb_private;
 
@@ -85,7 +86,8 @@ SourceManager::DisplaySourceLinesWithLineNumbersUsingLastFile
     uint32_t context_before,
     uint32_t context_after,
     const char* current_line_cstr,
-    Stream *s
+    Stream *s,
+    const SymbolContextList *bp_locs
 )
 {
     if (line == 0)
@@ -119,7 +121,21 @@ SourceManager::DisplaySourceLinesWithLineNumbersUsingLastFile
                 break;
             }
 
-            s->Printf("%2.2s %-4u\t", curr_line == line ? current_line_cstr : "", curr_line);
+            char prefix[32] = "";
+            if (bp_locs)
+            {
+                uint32_t bp_count = bp_locs->NumLineEntriesWithLine (curr_line);
+                
+                if (bp_count > 0)
+                    ::snprintf (prefix, sizeof (prefix), "[%u] ", bp_count);
+                else
+                    ::snprintf (prefix, sizeof (prefix), "    ");
+            }
+
+            s->Printf("%s%2.2s %-4u\t", 
+                      prefix,
+                      curr_line == line ? current_line_cstr : "", 
+                      curr_line);
             if (m_last_file_sp->DisplaySourceLines (curr_line, 0, 0, s) == 0)
             {
                 m_last_file_line = UINT32_MAX;
@@ -138,7 +154,8 @@ SourceManager::DisplaySourceLinesWithLineNumbers
     uint32_t context_before,
     uint32_t context_after,
     const char* current_line_cstr,
-    Stream *s
+    Stream *s,
+    const SymbolContextList *bp_locs
 )
 {
     bool same_as_previous = m_last_file_sp && m_last_file_sp->FileSpecMatches (file_spec);
@@ -152,17 +169,17 @@ SourceManager::DisplaySourceLinesWithLineNumbers
             m_last_file_line = 0;
     }
 
-    return DisplaySourceLinesWithLineNumbersUsingLastFile (line, context_before, context_after, current_line_cstr, s);
+    return DisplaySourceLinesWithLineNumbersUsingLastFile (line, context_before, context_after, current_line_cstr, s, bp_locs);
 }
 
 size_t
-SourceManager::DisplayMoreWithLineNumbers (Stream *s)
+SourceManager::DisplayMoreWithLineNumbers (Stream *s, const SymbolContextList *bp_locs)
 {
     if (m_last_file_sp)
     {
         if (m_last_file_line == UINT32_MAX)
             return 0;
-        DisplaySourceLinesWithLineNumbersUsingLastFile (0, m_last_file_context_before, m_last_file_context_after, "", s);
+        DisplaySourceLinesWithLineNumbersUsingLastFile (0, m_last_file_context_before, m_last_file_context_after, "", s, bp_locs);
     }
     return 0;
 }
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