Revert "Fix PR debug/49047"

[pf3gnuchains/gcc-fork.git] / gcc / xcoffout.c

diff --git a/gcc/xcoffout.c b/gcc/xcoffout.c
index ccc1ab8..84b1436 100644 (file)
--- a/gcc/xcoffout.c
+++ b/gcc/xcoffout.c
@@ -1,6 +1,6 @@
 /* Output xcoff-format symbol table information from GNU compiler.
    Copyright (C) 1992, 1994, 1995, 1997, 1998, 1999, 2000, 2002, 2003, 2004,
-   2007, 2008  Free Software Foundation, Inc.
+   2007, 2008, 2010  Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -81,8 +81,15 @@ const char *xcoff_lastfile;
 #define ASM_OUTPUT_LINE(FILE,LINENUM)                                     \
   do                                                                      \
     {                                                                     \
+      /* Make sure we're in a function and prevent output of .line 0, as   \
+        line # 0 is meant for symbol addresses in xcoff.  Additionally,   \
+        line numbers are 'unsigned short' in 32-bit mode.  */             \
       if (xcoff_begin_function_line >= 0)                                 \
-       fprintf (FILE, "\t.line\t%d\n", ABS_OR_RELATIVE_LINENO (LINENUM)); \
+       {                                                                  \
+         int lno = ABS_OR_RELATIVE_LINENO (LINENUM);                      \
+         if (lno > 0 && (TARGET_64BIT || lno <= (int)USHRT_MAX))          \
+           fprintf (FILE, "\t.line\t%d\n", lno);                          \
+       }                                                                  \
     }                                                                     \
   while (0)