diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index a125b72e420..08271641370 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,12 @@
+2018-06-28  Tom Tromey  <tom@tromey.com>
+
+	* NEWS: Mention --enable-codesign.
+	* silent-rules.mk (ECHO_SIGN): New variable.
+	* configure.ac: Add --enable-codesign.
+	* configure: Rebuild.
+	* Makefile.in (CODESIGN, CODESIGN_CERT): New variables.
+	(gdb$(EXEEXT)): Optionally invoke codesign.
+
 2018-06-27  Tom Tromey  <tom@tromey.com>
 
 	* machoread.c (macho_symfile_read): Define "symbol_table" earlier.
diff --git a/gdb/Makefile.in b/gdb/Makefile.in
index 5934cd6a23e..13627e07e0a 100644
--- a/gdb/Makefile.in
+++ b/gdb/Makefile.in
@@ -222,6 +222,10 @@ LIBICONV = @LIBICONV@
 # Did the user give us a --with-gdb-datadir option?
 GDB_DATADIR = @GDB_DATADIR@
 
+# Code signing.
+CODESIGN = codesign
+CODESIGN_CERT = @CODESIGN_CERT@
+
 # Flags to pass to gdb when invoked with "make run".
 GDBFLAGS =
 
@@ -1916,6 +1920,9 @@ gdb$(EXEEXT): gdb.o $(LIBGDB_OBS) $(ADD_DEPS) $(CDEPS) $(TDEPLIBS)
 	$(ECHO_CXXLD) $(CC_LD) $(INTERNAL_LDFLAGS) $(WIN32LDAPP) \
 		-o gdb$(EXEEXT) gdb.o $(LIBGDB_OBS) \
 		$(TDEPLIBS) $(TUI_LIBRARY) $(CLIBS) $(LOADLIBES)
+ifneq ($(CODESIGN_CERT),)
+	$(ECHO_SIGN) $(CODESIGN) -s $(CODESIGN_CERT) gdb$(EXEEXT)
+endif
 
 # Convenience rule to handle recursion.
 $(LIBGNU) $(GNULIB_H): all-lib
diff --git a/gdb/NEWS b/gdb/NEWS
index 13da2f1d4e9..d72b2961530 100644
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -84,6 +84,13 @@ SH-5/SH64 running OpenBSD 	SH-5/SH64 support in sh*-*-openbsd*
   the tradeoff that there is a possibility of false hits being
   reported.
 
+* New configure options
+
+--enable-codesign=CERT
+  This can be used to invoke "codesign -s CERT" after building gdb.
+  This option is useful on macOS, where code signing is required for
+  gdb to work properly.
+
 *** Changes in GDB 8.1
 
 * GDB now supports dynamically creating arbitrary register groups specified
diff --git a/gdb/configure b/gdb/configure
index d3a3bbe44c9..28756ed9826 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -745,6 +745,7 @@ AWK
 REPORT_BUGS_TEXI
 REPORT_BUGS_TO
 PKGVERSION
+CODESIGN_CERT
 HAVE_NATIVE_GCORE_TARGET
 TARGET_OBS
 subdirs
@@ -861,6 +862,7 @@ enable_gdbtk
 with_libunwind_ia64
 with_curses
 enable_profiling
+enable_codesign
 with_pkgversion
 with_bugurl
 with_system_zlib
@@ -1550,6 +1552,7 @@ Optional Features:
   --enable-tui            enable full-screen terminal user interface (TUI)
   --enable-gdbtk          enable gdbtk graphical user interface (GUI)
   --enable-profiling      enable profiling of GDB
+  --enable-codesign=CERT  sign gdb with 'codesign -s CERT'
   --disable-rpath         do not hardcode runtime library paths
   --enable-libmcheck      Try linking with -lmcheck if available
   --enable-werror         treat compile warnings as errors
@@ -7050,6 +7053,14 @@ $as_echo "$ac_cv_cc_supports_pg" >&6; }
   CFLAGS="$OLD_CFLAGS"
 fi
 
+CODESIGN_CERT=
+# Check whether --enable-codesign was given.
+if test "${enable_codesign+set}" = set; then :
+  enableval=$enable_codesign; CODESIGN_CERT=$enableval
+fi
+
+
+
 
 
 # Check whether --with-pkgversion was given.
diff --git a/gdb/configure.ac b/gdb/configure.ac
index 44b6c62d709..4c20ea5178d 100644
--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -471,6 +471,13 @@ if test "$enable_profiling" = yes ; then
   CFLAGS="$OLD_CFLAGS"
 fi
 
+CODESIGN_CERT=
+AC_ARG_ENABLE([codesign],
+  AS_HELP_STRING([--enable-codesign=CERT],
+                 [sign gdb with 'codesign -s CERT']),
+  [CODESIGN_CERT=$enableval])
+AC_SUBST([CODESIGN_CERT])
+
 ACX_PKGVERSION([GDB])
 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
diff --git a/gdb/silent-rules.mk b/gdb/silent-rules.mk
index 803dbda546a..ade77ad1c51 100644
--- a/gdb/silent-rules.mk
+++ b/gdb/silent-rules.mk
@@ -10,5 +10,6 @@ ECHO_GEN_XML_BUILTIN = \
 ECHO_GEN_XML_BUILTIN_GENERATED = \
               @echo "  GEN    xml-builtin-generated.c";
 ECHO_INIT_C =  echo "  GEN    init.c" ||
+ECHO_SIGN =   @echo "  SIGN   gdb";
 SILENCE = @
 endif
