From FEDORA_PATCHES Mon Sep 17 00:00:00 2001

From: Fedora GDB patches <invalid@email.com>

Date: Fri, 27 Oct 2017 21:07:50 +0200

Subject: gdb-6.5-bz218379-solib-trampoline-lookup-lock-fix.patch

;; Fix lockup on trampoline vs. its function lookup; unreproducible (BZ 218379).

;;=fedora

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

diff --git a/gdb/symtab.c b/gdb/symtab.c

--- a/gdb/symtab.c

+++ b/gdb/symtab.c

@@ -3169,6 +3169,13 @@ find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent)

 	     msymbol->linkage_name ()); */

 	  ;

 	/* 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 (BMSYMBOL_VALUE_ADDRESS (mfunsym) == pc)

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

+	/* fall through */

 	else

 	  {

 	    /* Detect an obvious case of infinite recursion.  If this