listing: change the line numbers to match the source code

Instead of completely useless sequential line numbers, emit line
numbers corresponding to the line numbers in the source code.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

2 files changed, 11 insertions, 7 deletions

diff --git a/doc/changes.src b/doc/changes.src
index 67491b71..eab8439d 100644
--- a/doc/changes.src
+++ b/doc/changes.src
@@ -32,6 +32,9 @@ since 2007.
    relocations are zero-extended from 32-bits with a warning
    (suppressible via \c{}); signed 64-bit relocations are an arror.
 
+\b Line numbers in list files now correspond to the lines in the source
+   files, instead of simply being sequential.
+
 \S{cl-2.11.09} Version 2.11.09
 
 \b Fix potential stack overwrite in \c{macho32} backend.
diff --git a/listing.c b/listing.c
index 49f5e15d..4fcf91f8 100644
--- a/listing.c
+++ b/listing.c
@@ -1,6 +1,6 @@
 /* ----------------------------------------------------------------------- *
  *   
- *   Copyright 1996-2009 The NASM Authors - All Rights Reserved
+ *   Copyright 1996-2016 The NASM Authors - All Rights Reserved
  *   See the file AUTHORS included with the NASM distribution for
  *   the specific copyright holders.
  *
@@ -73,6 +73,7 @@ static char listdata[2 * LIST_INDENT];  /* we need less than that actually */
 static int32_t listoffset;
 
 static int32_t listlineno;
+static const char *listfn;
 
 static int32_t listp;
 
@@ -89,7 +90,7 @@ static void list_emit(void)
     if (!listlinep && !listdata[0])
         return;
 
-    fprintf(listfp, "%6"PRId32" ", ++listlineno);
+    fprintf(listfp, "%6"PRId32" ", listlineno);
 
     if (listdata[0])
         fprintf(listfp, "%08"PRIX32" %-*s", listoffset, LIST_HEXBIT + 1,
@@ -111,7 +112,7 @@ static void list_emit(void)
     listdata[0] = '\0';
 
     if (listerror[0]) {
-	fprintf(listfp, "%6"PRId32"          ", ++listlineno);
+	fprintf(listfp, "%6"PRId32"          ", listlineno);
 	for (i = 0; i < LIST_HEXBIT; i++)
 	    putc('*', listfp);
 	
@@ -243,10 +244,9 @@ static void list_line(int type, char *line)
 {
     if (!listp)
         return;
-    if (user_nolist) {          /* fbk - 9/2/00 */
-        listlineno++;
-        return;
-    }
+
+    if (user_nolist)
+      return;
 
     if (mistack && mistack->inhibiting) {
         if (type == LIST_MACRO)
@@ -258,6 +258,7 @@ static void list_line(int type, char *line)
         }
     }
     list_emit();
+    listlineno = src_get_linnum();
     listlinep = true;
     strncpy(listline, line, LIST_MAX_LEN - 1);
     listline[LIST_MAX_LEN - 1] = '\0';