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


Index: gdb-7.6.50.20130731-cvs/gdb/symtab.c
===================================================================
--- gdb-7.6.50.20130731-cvs.orig/gdb/symtab.c	2013-08-02 17:06:19.854663801 +0200
+++ gdb-7.6.50.20130731-cvs/gdb/symtab.c	2013-08-02 17:07:04.317721471 +0200
@@ -2327,6 +2327,13 @@ 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.minsym), paddress (target_gdbarch (), pc));
+	/* fall through */
 	else
 	  return find_pc_line (SYMBOL_VALUE_ADDRESS (mfunsym), 0);
       }