https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=218379 Index: gdb-7.2.50.20110107/gdb/symtab.c =================================================================== --- gdb-7.2.50.20110107.orig/gdb/symtab.c 2011-01-07 09:03:38.000000000 +0100 +++ gdb-7.2.50.20110107/gdb/symtab.c 2011-01-07 09:06:32.000000000 +0100 @@ -2014,6 +2014,13 @@ find_pc_sect_line (CORE_ADDR pc, struct /* warning ("In stub for %s; unable to find real function/line info", 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); }