configure: further improvements for NetBSD and OpenBSD

Enable ELF support for `racketcs` embedding, and add `paxctl +m`
build steps for NetBSD.

racket/src/cfg-racket

@@ -691,6 +691,7 @@ x_libraries
 x_includes
 DYN_CFLAGS
 PLAIN_CC
+POST_LINKER
 MZLINKER
 REZ
 CC_FOR_BUILD
@@ -3366,6 +3367,8 @@ LIBRACKET_DEP=""
 EXE_SUFFIX=
 SO_SUFFIX=.so
 
+POST_LINKER="echo"
+
 MMM=3m
 MMM_INSTALLED=
 MMM_CAP_INSTALLED=
@@ -4803,6 +4806,7 @@ case "$host_os" in
     ;;
   netbsd*)
     LIBS="$LIBS -rdynamic"
+    POST_LINKER="paxctl +m"
     ;;
   irix*)
     enable_cgcdefault="yes"
@@ -6994,6 +6998,7 @@ LIBS="$LIBS $EXTRALIBS"
 
 
 
+
 
 
 mk_needed_dir()

racket/src/cs/c/Makefile.in

@@ -200,9 +200,11 @@ EMBED_DEPS = $(srcdir)/embed-boot.rkt
 
 racketcs@NOT_OSX@@NOT_MINGW@: raw_racketcs petite-v.boot scheme-v.boot racket-v.boot $(EMBED_DEPS)
 	$(BOOTSTRAP_RACKET) $(srcdir)/embed-boot.rkt @ELF_COMP@ @BOOT_COMPRESS_COMP@ raw_racketcs racketcs petite-v.boot scheme-v.boot racket-v.boot
+	@POST_LINKER@ racketcs
 
 gracketcs@NOT_OSX@@NOT_MINGW@: raw_gracketcs petite-v.boot scheme-v.boot racket-v.boot $(EMBED_DEPS)
 	$(BOOTSTRAP_RACKET) $(srcdir)/embed-boot.rkt @ELF_COMP@ @BOOT_COMPRESS_COMP@ raw_gracketcs gracketcs petite-v.boot scheme-v.boot racket-v.boot
+	@POST_LINKER@ gracketcs
 
 SCHEME_LIBS = $(SCHEME_TARGET_INC)/libkernel.a \
               $(SCHEME_TARGET_INC)/../../lz4/lib/liblz4.a \
@@ -212,9 +214,11 @@ BOOT_OBJS = boot.o $(SCHEME_LIBS) rktio/librktio.a
 
 raw_racketcs: main.o boot.o $(BOOT_OBJS)
 	$(CC) $(CFLAGS) -o raw_racketcs main.o $(BOOT_OBJS) $(LDFLAGS) $(LIBS)
+	@POST_LINKER@ raw_racketcs
 
 raw_gracketcs: grmain.o boot.o $(BOOT_OBJS)
 	$(CC) $(CFLAGS) -o raw_gracketcs grmain.o $(BOOT_OBJS) $(LDFLAGS) $(LIBS)
+	@POST_LINKER@ raw_gracketcs
 
 petite-v.boot: $(SCHEME_TARGET_INC)/petite.boot
 	$(SCHEME) --script $(srcdir)/to-vfasl.ss @BOOT_COMPRESS_COMP@ @TT_CROSS_MODE@ $(SCHEME_TARGET_INC)/petite.boot petite-v.boot

racket/src/cs/c/configure

@@ -656,6 +656,7 @@ RACKET
 RKTL_POST
 RKTL_PRE
 INCLUDEDEP
+POST_LINKER
 RKTLINKER
 STRIP_LIB_DEBUG
 STRIP_DEBUG
@@ -2839,6 +2840,7 @@ CONFIGURE_RACKET_SO_COMPILE=""
 COMPRESS_COMP=""
 BOOT_COMPRESS_COMP=""
 ELF_COMP=""
+POST_LINKER="echo"
 
 FRAMEWORK_INSTALL_DIR='$(libpltdir)'
 FRAMEWORK_PREFIX='@executable_path/../lib/'
@@ -3910,8 +3912,8 @@ case "$host_os" in
     CFLAGS="${CFLAGS} -I/usr/local/include"
     LIBS="${LIBS} -L/usr/local/lib -liconv -lm -lpthread -lossp-uuid"
     LDFLAGS="${LDFLAGS} -Wl,-zwxneeded"
-    # Can't strip until ELF lookup added to startup
+    CPPFLAGS="${CPPFLAGS} -DELF_FIND_BOOT_SECTION"
-    enable_strip=no
+    ELF_COMP="--expect-elf"
     ;;
   bitrig*)
     ;;
@@ -3920,8 +3922,9 @@ case "$host_os" in
   netbsd*)
     MACH_OS=nb
     LIBS="${LIBS} /usr/lib/i18n/libiconv_std.a -lm -lpthread"
-    # Can't strip until ELF lookup added to startup
+    CPPFLAGS="${CPPFLAGS} -DELF_FIND_BOOT_SECTION"
-    enable_strip=no
+    ELF_COMP="--expect-elf"
+    POST_LINKER="paxctl +m"
     ;;
   irix*)
     ;;
@@ -5044,6 +5047,7 @@ CPPFLAGS="$CPPFLAGS $PREFLAGS"
 
 
 
+
 
 
 makefiles="Makefile"

racket/src/cs/c/configure.ac

@@ -125,6 +125,7 @@ CONFIGURE_RACKET_SO_COMPILE=""
 COMPRESS_COMP=""
 BOOT_COMPRESS_COMP=""
 ELF_COMP=""
+POST_LINKER="echo"
 
 FRAMEWORK_INSTALL_DIR='$(libpltdir)'
 FRAMEWORK_PREFIX='@executable_path/../lib/'
@@ -191,8 +192,8 @@ case "$host_os" in
     CFLAGS="${CFLAGS} -I/usr/local/include"
     LIBS="${LIBS} -L/usr/local/lib -liconv -lm -lpthread -lossp-uuid"
     LDFLAGS="${LDFLAGS} -Wl,-zwxneeded"
-    # Can't strip until ELF lookup added to startup
+    CPPFLAGS="${CPPFLAGS} -DELF_FIND_BOOT_SECTION"
-    enable_strip=no
+    ELF_COMP="--expect-elf"
     ;;
   bitrig*)
     ;;
@@ -201,8 +202,9 @@ case "$host_os" in
   netbsd*)
     MACH_OS=nb
     LIBS="${LIBS} /usr/lib/i18n/libiconv_std.a -lm -lpthread"
-    # Can't strip until ELF lookup added to startup
+    CPPFLAGS="${CPPFLAGS} -DELF_FIND_BOOT_SECTION"
-    enable_strip=no
+    ELF_COMP="--expect-elf"
+    POST_LINKER="paxctl +m"
     ;;
   irix*)
     ;;
@@ -629,6 +631,7 @@ AC_SUBST(ICP)
 AC_SUBST(STRIP_DEBUG)
 AC_SUBST(STRIP_LIB_DEBUG)
 AC_SUBST(RKTLINKER)
+AC_SUBST(POST_LINKER)
 AC_SUBST(INCLUDEDEP)
 AC_SUBST(RKTL_PRE)
 AC_SUBST(RKTL_POST)

racket/src/gracket/Makefile.in

@@ -110,6 +110,7 @@ both:
 
 gracket@CGC@ : $(RACKETDEPS) grmain.@LTO@ $(GRACKETOBJECTS) $(MRSTATIC_STUB) $(GRACKETRESDEP)
 	$(GRACKETLINKER) $(GRACKETLDFLAGS) $(MRSTATIC) -o gracket@CGC@ $(GRACKETOBJECTS) $(GRACKETRES) $(GRACKETLDLIBS) $(MRSTATIC_STUB)
+	@POST_LINKER@ gracket@CGC@
 
 gres.o : $(srcdir)/../worksp/gracket/gracket.rc
 	@WINDRES@ -i $(srcdir)/../worksp/gracket/gracket.rc -o gres.o

racket/src/gracket/gc2/Makefile.in

@@ -104,6 +104,7 @@ GRACKETMZOBJS_la =
 
 ../gracket@MMM@@NOT_OSX@@NOT_MINGW@: grmain.@LTO@ ../../racket/libracket3m.@LIBSFX@ $(LIBRKTIO_@LIBSFX@)
 	$(GRACKETLINKER) $(GRACKETLDFLAGS) -o ../gracket@MMM@ grmain.@LTO@ ../../racket/libracket3m.@LIBSFX@ $(GRACKETMZOBJS_@LIBSFX@) $(GRACKETLIBS_@LIBSFX@)
+	@POST_LINKER@ ../gracket@MMM@
 
 ../gracket@MMM@@EXE_SUFFIX@@MINGW@: grmain.@LTO@ ../../racket/MemoryModule.@LTO@ ../../racket/gc2/libracket3m.dll.a ../gres.o
 	$(GRACKETLINKER) -mwindows $(GRACKETLDFLAGS) -o ../gracket@MMM@@EXE_SUFFIX@ grmain.@LTO@ ../../racket/MemoryModule.@LTO@ ../gres.o ../../racket/gc2/libracket3m.dll.a $(GRACKETMZOBJS_@LIBSFX@) $(GRACKETLIBS_@LIBSFX@) -l delayimp -static-libgcc

racket/src/racket/Makefile.in

@@ -203,6 +203,7 @@ sproc.@LTO@: @GCDIR@/sproc.@LTO@
 
 racket@CGC@@NOT_OSX@@NOT_MINGW@: libracket.@LIBSFX@ libmzgc.@LIBSFX@ main.@LTO@ $(LIBRKTIO_FOR_LIB) $(SPECIALIZINGOBJECTS)
 	@MZLINKER@ -o racket@CGC@ main.@LTO@ $(SPECIALIZINGOBJECTS) libracket.@LIBSFX@ libmzgc.@LIBSFX@ $(LIBRKTIO_FOR_LIB) @LDFLAGS@ @LIBS@
+	@POST_LINKER@ racket@CGC@
 
 mzcom@CGC@@NOT_MINGW@:
 	$(NOOP)

racket/src/racket/configure.ac

@@ -284,6 +284,8 @@ LIBRACKET_DEP=""
 EXE_SUFFIX=
 SO_SUFFIX=.so
 
+POST_LINKER="echo"
+
 MMM=3m
 MMM_INSTALLED=
 MMM_CAP_INSTALLED=
@@ -574,6 +576,7 @@ case "$host_os" in
     ;;
   netbsd*)
     LIBS="$LIBS -rdynamic"
+    POST_LINKER="paxctl +m"
     ;;
   irix*)
     enable_cgcdefault="yes"
@@ -1437,6 +1440,7 @@ AC_SUBST(STRIP_LIB_DEBUG)
 AC_SUBST(CC_FOR_BUILD)
 AC_SUBST(REZ)
 AC_SUBST(MZLINKER)
+AC_SUBST(POST_LINKER)
 AC_SUBST(PLAIN_CC)
 AC_SUBST(DYN_CFLAGS)
 

racket/src/racket/gc2/Makefile.in

@@ -587,6 +587,7 @@ EXTRA_OBJS_L = $(EXTRA_GMP) ../src/unwind.@LTO@ $(@FOREIGN_IF_USED@_OBJSLIB) $(L
 
 ../racket@MMM@@NOT_OSX@@NOT_MINGW@: main.@LTO@ ../libracket3m.@LIBSFX@ $(LIBRKTIO_FOR_LIB)
 	cd ..; @MZLINKER@ -o racket@MMM@ @PROFFLAGS@ gc2/main.@LTO@ libracket3m.@LIBSFX@ $(LIBRKTIO_UP_FOR_LIB) @LDFLAGS@ $(LIBS)
+	@POST_LINKER@ ../racket@MMM@
 
 # The above "cd .." prevents a problem with libtool's generated script in --enable-shared mode,
 #  at least for Mac OS X. Beware of changing LIBS or LDFLAGS to inclucde something with a relative