https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=218379

Index: gdb-7.5.50.20130118/gdb/symtab.c

===================================================================

--- gdb-7.5.50.20130118.orig/gdb/symtab.c	2013-01-18 23:53:22.009797788 +0100

+++ gdb-7.5.50.20130118/gdb/symtab.c	2013-01-18 23:53:51.044846777 +0100

@@ -2356,6 +2356,13 @@ find_pc_sect_line (CORE_ADDR pc, struct

 	     SYMBOL_LINKAGE_NAME (msymbol)); */

 	  ;

 	/* fall through */

+	/* `msymbol' trampoline may be located before its .text symbol

+	   but this text symbol may be the address we were looking for.

+	   Avoid `find_pc_sect_line'<->`find_pc_line' infinite loop.

+	   Red Hat Bug 218379.  */

+	else if (SYMBOL_VALUE (mfunsym) == pc)

+	  warning ("In stub for %s (0x%s); interlocked, please submit the binary to http://bugzilla.redhat.com", SYMBOL_LINKAGE_NAME (msymbol), paddress (target_gdbarch (), pc));

+	/* fall through */

 	else

 	  return find_pc_line (SYMBOL_VALUE_ADDRESS (mfunsym), 0);

       }