elf/Makefile

   1 # Copyright (C) 1995-1999, 2000, 2001, 2002 Free Software Foundation, Inc.
   2 # This file is part of the GNU C Library.
   3
   4 # The GNU C Library is free software; you can redistribute it and/or
   5 # modify it under the terms of the GNU Lesser General Public
   6 # License as published by the Free Software Foundation; either
   7 # version 2.1 of the License, or (at your option) any later version.
   8
   9 # The GNU C Library is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # Lesser General Public License for more details.
  13
  14 # You should have received a copy of the GNU Lesser General Public
  15 # License along with the GNU C Library; if not, write to the Free
  16 # Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17 # 02111-1307 USA.
  18
  19 # Makefile for elf subdirectory of GNU C Library.
  20
  21 subdir          := elf
  22
  23 headers         = elf.h bits/elfclass.h link.h
  24 routines        = $(dl-routines) dl-open dl-close dl-support dl-iteratephdr \
  25                   dl-iteratephdr-static dl-addr enbl-secure dl-profstub \
  26                   dl-origin dl-libc dl-sym
  27
  28 # The core dynamic linking functions are in libc for the static and
  29 # profiled libraries.
  30 dl-routines     = $(addprefix dl-,load cache lookup object reloc deps \
  31                                   runtime error init fini debug misc \
  32                                   version profile conflict tls)
  33 all-dl-routines = $(dl-routines) $(sysdep-dl-routines)
  34 # But they are absent from the shared libc, because that code is in ld.so.
  35 elide-routines.os = $(all-dl-routines) dl-support enbl-secure \
  36                     dl-iteratephdr-static
  37
  38 # ld.so uses those routines, plus some special stuff for being the program
  39 # interpreter and operating independent of libc.
  40 rtld-routines   := rtld $(dl-routines) dl-sysdep dl-environ dl-minimal \
  41                    dl-xstat64 dl-fxstat64
  42 all-rtld-routines = $(rtld-routines) $(sysdep-rtld-routines)
  43
  44 distribute      := $(rtld-routines:=.c) dynamic-link.h do-rel.h dl-machine.h \
  45                    dl-cache.h dl-hash.h soinit.c sofini.c ldd.bash.in \
  46                    genrtldtbl.awk atomicity.h dl-procinfo.h ldsodefs.h \
  47                    dl-librecon.h interp.c sln.c dl-dst.h hp-timing.h \
  48                    do-lookup.h dl-lookupcfg.h sprof.c gen-trusted-dirs.awk \
  49                    testobj1.c testobj2.c testobj3.c testobj4.c testobj5.c \
  50                    testobj6.c testobj1_1.c failobj.c unloadmod.c \
  51                    ldconfig.h ldconfig.c cache.c readlib.c readelflib.c \
  52                    chroot_canon.c gccframe.h \
  53                    dep1.c dep2.c dep3.c dep4.c dl-dtprocnum.h unsecvars.h \
  54                    vismain.c vismod1.c vismod2.c vismod3.c \
  55                    constload2.c constload3.c filtmod1.c filtmod2.c \
  56                    nodlopenmod.c nodelete.c nodelmod1.c nodelmod2.c \
  57                    nodelmod3.c nodelmod4.c nodlopen.c dl-osinfo.h \
  58                    reldepmod1.c reldepmod2.c reldepmod3.c reldepmod4.c \
  59                    reldepmod5.c reldepmod6.c \
  60                    reldep4mod1.c reldep4mod2.c reldep4mod3.c reldep4mod4.c \
  61                    nextmod1.c nextmod2.c pathoptobj.c tst-pathopt.sh \
  62                    neededobj1.c neededobj2.c neededobj3.c neededobj4.c \
  63                    neededobj5.c neededobj6.c firstobj.c \
  64                    unload2mod.c unload2dep.c ltglobmod1.c ltglobmod2.c \
  65                    testobj.h vismod.h globalmod1.c \
  66                    dblloadmod1.c dblloadmod2.c dblloadmod3.c \
  67                    reldep6mod4.c reldep6mod3.c reldep6mod2.c reldep6mod1.c \
  68                    reldep6mod0.c \
  69                    unwind-dw2.c unwind-dw2-fde.c unwind.h unwind-pe.h \
  70                    unwind-dw2-fde.h dwarf2.h dl-procinfo.c tls.h dl-tls.h
  71
  72 include ../Makeconfig
  73
  74 ifeq ($(unwind-find-fde),yes)
  75 routines += unwind-dw2-fde-glibc
  76 shared-only-routines = unwind-dw2-fde-glibc
  77 endif
  78
  79 before-compile  = $(objpfx)trusted-dirs.h
  80 generated       := trusted-dirs.h trusted-dirs.st for-renamed/renamed.so
  81 generated-dirs  := for-renamed
  82
  83 ifeq ($(versioning),yes)
  84 ld-map          = $(common-objpfx)ld.map
  85 endif
  86
  87 ifeq (yes,$(build-shared))
  88 extra-objs      = $(all-rtld-routines:%=%.os) soinit.os sofini.os interp.os
  89 generated       += librtld.os dl-allobjs.os ld.so ldd
  90 install-others  = $(inst_slibdir)/$(rtld-installed-name)
  91 install-bin-script = ldd
  92 endif
  93
  94 others          = sprof sln
  95 install-bin     = sprof
  96 others-static   = sln
  97 install-rootsbin = sln
  98
  99 ifeq (yes,$(use-ldconfig))
 100 ifeq (yes,$(build-shared))
 101 others-static   += ldconfig
 102 others          += ldconfig
 103 install-rootsbin += ldconfig
 104
 105 ldconfig-modules := cache readlib xmalloc xstrdup chroot_canon
 106 extra-objs      += $(ldconfig-modules:=.o)
 107
 108 # To find xmalloc.c and xstrdup.c
 109 vpath %.c ../locale/programs
 110
 111 endif
 112 endif
 113
 114 ifeq (yes,$(build-shared))
 115 tests = loadtest restest1 preloadtest loadfail multiload origtest resolvfail \
 116         constload1 order $(tests-vis-$(have-protected)) noload filter unload \
 117         reldep reldep2 reldep3 reldep4 $(tests-nodelete-$(have-z-nodelete)) \
 118         $(tests-nodlopen-$(have-z-nodlopen)) neededtest neededtest2 \
 119         neededtest3 neededtest4 unload2 lateglobal initfirst global \
 120         restest2 next dblload dblunload reldep5 reldep6 tst-tls1
 121 test-srcs = tst-pathopt
 122 tests-vis-yes = vismain
 123 tests-nodelete-yes = nodelete
 124 tests-nodlopen-yes = nodlopen
 125 endif
 126 modules-names = testobj1 testobj2 testobj3 testobj4 testobj5 testobj6 \
 127                 testobj1_1 failobj constload2 constload3 unloadmod \
 128                 dep1 dep2 dep3 dep4 $(modules-vis-$(have-protected)) \
 129                 $(modules-nodelete-$(have-z-nodelete)) \
 130                 $(modules-nodlopen-$(have-z-nodlopen)) filtmod1 filtmod2 \
 131                 reldepmod1 reldepmod2 reldepmod3 reldepmod4 nextmod1 nextmod2 \
 132                 reldep4mod1 reldep4mod2 reldep4mod3 reldep4mod4 \
 133                 neededobj1 neededobj2 neededobj3 neededobj4 \
 134                 neededobj5 neededobj6 firstobj globalmod1 \
 135                 unload2mod unload2dep ltglobmod1 ltglobmod2 pathoptobj \
 136                 dblloadmod1 dblloadmod2 dblloadmod3 reldepmod5 reldepmod6 \
 137                 reldep6mod0 reldep6mod1 reldep6mod2 reldep6mod3 reldep6mod4
 138 modules-vis-yes = vismod1 vismod2 vismod3
 139 modules-nodelete-yes = nodelmod1 nodelmod2 nodelmod3 nodelmod4
 140 modules-nodlopen-yes = nodlopenmod
 141 extra-objs += $(addsuffix .os,$(strip $(modules-names)))
 142
 143 include ../Rules
 144
 145 ifeq (yes,$(build-shared))
 146 # Make sure these things are built in the `make lib' pass so they can be used
 147 # to run programs during the `make others' pass.
 148 lib-noranlib: $(objpfx)$(rtld-installed-name) \
 149               $(addprefix $(objpfx),$(extra-objs))
 150 endif
 151
 152 # Command to link into a larger single relocatable object.
 153 reloc-link = $(LINK.o) -nostdlib -nostartfiles -r -o $@
 154
 155 $(objpfx)dl-allobjs.os: $(all-rtld-routines:%=$(objpfx)%.os)
 156         $(reloc-link) $^
 157
 158 # Link together the dynamic linker into a single relocatable object.
 159 $(objpfx)librtld.os: $(objpfx)dl-allobjs.os $(common-objpfx)libc_pic.a
 160         $(reloc-link) '-Wl,-(' $^ -lgcc '-Wl,-)'
 161
 162 $(objpfx)ld.so: $(objpfx)librtld.os $(ld-map)
 163         $(LINK.o) -nostdlib -nostartfiles -shared                       \
 164                   $(LDFLAGS-rtld) -Wl,--verbose 2>&1 |                  \
 165                   sed -e '/^=========/,/^=========/!d;/^=========/d'    \
 166                       -e 's/\. = 0 + SIZEOF_HEADERS;/& _begin = . - SIZEOF_HEADERS;/' \
 167                   > $@.lds;                                             \
 168         $(LINK.o) -nostdlib -nostartfiles -shared -o $@ $(LDFLAGS-rtld) \
 169                   $(filter-out $(map-file),$^) $(load-map-file)         \
 170                   -Wl,-soname=$(rtld-installed-name) -T $@.lds;         \
 171         rm -f $@.lds
 172
 173 # interp.c exists just to get this string into the libraries.
 174 CFLAGS-interp.c = -D'RUNTIME_LINKER="$(slibdir)/$(rtld-installed-name)"'
 175
 176 ifneq (ld.so,$(rtld-installed-name))
 177 # Make sure ld.so.1 exists in the build directory so we can link
 178 # against it.
 179 $(objpfx)$(rtld-installed-name): $(objpfx)ld.so
 180         rm -f $@
 181         ln -s $(<F) $@
 182 generated += $(rtld-installed-name)
 183 endif
 184
 185 # Build a file mentioning all trustworthy directories to look for shared
 186 # libraries when using LD_LIBRARY_PATH in a setuid program.  The user can
 187 # add directories to the list by defining $(user-defined-trusted-dirs)
 188 # before starting make.
 189 $(objpfx)trusted-dirs.h: $(objpfx)trusted-dirs.st; @:
 190 $(objpfx)trusted-dirs.st: Makefile $(..)Makeconfig
 191         $(make-target-directory)
 192         echo "$(subst :, ,$(default-rpath) $(user-defined-trusted-dirs))"    \
 193         | $(AWK) -f gen-trusted-dirs.awk > ${@:st=T};
 194         $(move-if-change) ${@:st=T} ${@:st=h}
 195         touch $@
 196 CPPFLAGS-dl-load.c = -I$(objpfx). -I$(csu-objpfx).
 197
 198 ifeq (yes,$(build-shared))
 199 $(inst_slibdir)/$(rtld-version-installed-name): $(objpfx)ld.so $(+force)
 200         $(make-target-directory)
 201         $(do-install-program)
 202
 203 $(inst_slibdir)/$(rtld-installed-name): \
 204   $(inst_slibdir)/$(rtld-version-installed-name) \
 205   $(inst_slibdir)/libc-$(version).so
 206         $(make-shlib-link)
 207
 208 # Special target called by parent to install just the dynamic linker.
 209 .PHONY: ldso_install
 210 ldso_install: $(inst_slibdir)/$(rtld-installed-name)
 211 endif
 212
 213
 214 common-ldd-rewrite = -e 's%@RTLD@%$(slibdir)/$(rtld-installed-name)%g' \
 215                      -e 's%@VERSION@%$(version)%g'
 216 sh-ldd-rewrite = $(common-ldd-rewrite) -e 's%@BASH@%/bin/sh%g;s/\$$"/"/g'
 217 bash-ldd-rewrite = $(common-ldd-rewrite) -e 's%@BASH@%$(BASH)%g' \
 218                    -e 's%@TEXTDOMAINDIR@%$(msgcatdir)%g'
 219
 220 ifneq ($(have-bash2),yes)
 221 ldd-shell = sh
 222 else
 223 ldd-shell = bash
 224 endif
 225
 226 ifeq ($(ldd-rewrite-script),no)
 227 define gen-ldd
 228 sed $($(ldd-shell)-ldd-rewrite) < $< > $@.new
 229 endef
 230 else
 231 define gen-ldd
 232 sed $($(ldd-shell)-ldd-rewrite) < $< | sed -f $(ldd-rewrite-script) > $@.new
 233 endef
 234 endif
 235
 236 $(objpfx)ldd: ldd.bash.in $(common-objpfx)soversions.mk \
 237               $(common-objpfx)config.make
 238         $(gen-ldd)
 239         chmod 555 $@.new
 240         mv -f $@.new $@
 241
 242 $(objpfx)sprof: $(libdl)
 243
 244 $(objpfx)ldconfig: $(ldconfig-modules:%=$(objpfx)%.o)
 245 SYSCONF-FLAGS := -D'SYSCONFDIR="$(sysconfdir)"'
 246 CFLAGS-ldconfig.c = $(SYSCONF-FLAGS) -D'LIBDIR="$(libdir)"' -D'SLIBDIR="$(slibdir)"'
 247 CFLAGS-dl-cache.c = $(SYSCONF-FLAGS)
 248 CFLAGS-cache.c = $(SYSCONF-FLAGS)
 249
 250 test-modules = $(addprefix $(objpfx),$(addsuffix .so,$(strip $(modules-names))))
 251 generated += $(addsuffix .so,$(strip $(modules-names)))
 252
 253 ifeq (yes,$(build-shared))
 254 ifeq ($(cross-compiling),no)
 255 tests: $(objpfx)tst-pathopt.out
 256 endif
 257 endif
 258
 259 $(objpfx)testobj1.so: $(libdl)
 260 $(objpfx)testobj1_1.so: $(objpfx)testobj1.so $(libdl)
 261 $(objpfx)testobj2.so: $(objpfx)testobj1.so $(libdl)
 262 $(objpfx)testobj3.so: $(libdl)
 263 $(objpfx)testobj4.so: $(libdl)
 264 $(objpfx)testobj5.so: $(libdl)
 265 $(objpfx)testobj6.so: $(objpfx)testobj1.so $(objpfx)testobj2.so $(libdl)
 266 $(objpfx)failobj.so: $(objpfx)testobj6.so
 267 $(objpfx)dep1.so: $(objpfx)dep2.so $(objpfx)dep4.so
 268 $(objpfx)dep2.so: $(objpfx)dep3.so $(objpfx)dep4.so
 269 $(objpfx)dep4.so: $(objpfx)dep3.so
 270 $(objpfx)nodelmod3.so: $(objpfx)nodelmod4.so
 271 $(objpfx)nextmod1.so: $(libdl)
 272 $(objpfx)neededobj1.so: $(libdl)
 273 $(objpfx)neededobj2.so: $(objpfx)neededobj1.so $(libdl)
 274 $(objpfx)neededobj3.so: $(objpfx)neededobj1.so $(objpfx)neededobj2.so $(libdl)
 275 $(objpfx)neededobj4.so: $(objpfx)neededobj1.so $(objpfx)neededobj2.so \
 276                         $(objpfx)neededobj3.so $(libdl)
 277 $(objpfx)neededobj6.so: $(objpfx)neededobj5.so
 278 $(objpfx)unload2mod.so: $(objpfx)unload2dep.so
 279 $(objpfx)ltglobmod2.so: $(libdl)
 280 $(objpfx)firstobj.so: $(shared-thread-library)
 281 $(objpfx)globalmod1.so: $(libdl)
 282 $(objpfx)reldep4mod1.so: $(objpfx)reldep4mod3.so
 283 $(objpfx)reldep4mod2.so: $(objpfx)reldep4mod4.so
 284 $(objpfx)dblloadmod1.so: $(objpfx)dblloadmod3.so
 285 $(objpfx)dblloadmod2.so: $(objpfx)dblloadmod3.so
 286 $(objpfx)reldepmod5.so: $(objpfx)reldepmod2.so
 287 $(objpfx)reldepmod6.so: $(objpfx)reldepmod2.so
 288 $(objpfx)reldep6mod1.so: $(objpfx)reldep6mod0.so
 289 $(objpfx)reldep6mod2.so: $(objpfx)reldep6mod1.so
 290 $(objpfx)reldep6mod3.so: $(objpfx)reldep6mod2.so
 291 $(objpfx)reldep6mod4.so: $(objpfx)reldep6mod1.so
 292
 293 # filtmod1.so has a special rule
 294 $(filter-out $(objpfx)filtmod1.so, $(test-modules)): $(objpfx)%.so: $(objpfx)%.os
 295         $(build-module)
 296
 297 $(objpfx)loadtest: $(libdl)
 298 LDFLAGS-loadtest = -rdynamic
 299
 300 $(objpfx)loadtest.out: $(test-modules)
 301
 302 $(objpfx)neededtest: $(libdl)
 303 $(objpfx)neededtest.out: $(objpfx)neededobj1.so $(objpfx)neededobj2.so \
 304                          $(objpfx)neededobj3.so
 305
 306 $(objpfx)neededtest2: $(libdl)
 307 $(objpfx)neededtest2.out: $(objpfx)neededobj1.so $(objpfx)neededobj2.so \
 308                           $(objpfx)neededobj3.so
 309
 310 $(objpfx)neededtest3: $(libdl)
 311 $(objpfx)neededtest3.out: $(objpfx)neededobj1.so $(objpfx)neededobj2.so \
 312                           $(objpfx)neededobj3.so $(objpfx)neededobj4.so
 313
 314 neededtest4-ENV = LC_ALL=C LANGUAGE=C
 315 $(objpfx)neededtest4: $(libdl) $(objpfx)neededobj1.so
 316 $(objpfx)neededtest4.out: $(objpfx)neededobj5.so $(objpfx)neededobj6.so
 317
 318 $(objpfx)restest1: $(objpfx)testobj1.so $(objpfx)testobj1_1.so $(libdl)
 319 LDFLAGS-restest1 = -rdynamic
 320
 321 $(objpfx)restest2: $(libdl)
 322 LDFLAGS-restest2 = -rdynamic
 323
 324 $(objpfx)restest1.out: $(test-modules)
 325
 326 preloadtest-preloads = testobj1 testobj2 testobj3 testobj4 testobj5
 327 $(objpfx)preloadtest: $(objpfx)testobj6.so
 328 LDFLAGS-preloadtest = -rdynamic
 329 $(objpfx)preloadtest.out: $(preloadtest-preloads:%=$(objpfx)%.so)
 330 preloadtest-ENV = \
 331   LD_PRELOAD=$(subst $(empty) ,:,$(strip $(preloadtest-preloads:=.so)))
 332
 333 $(objpfx)loadfail: $(libdl)
 334 LDFLAGS-loadfail = -rdynamic
 335
 336 $(objpfx)loadfail.out: $(objpfx)failobj.so
 337
 338 $(objpfx)multiload: $(libdl)
 339 LDFLAGS-multiload = -rdynamic
 340 CFLAGS-multiload.c = -DOBJDIR=\"$(elf-objpfx)\"
 341
 342 $(objpfx)multiload.out: $(objpfx)testobj1.so
 343
 344 $(objpfx)origtest: $(libdl)
 345 LDFLAGS-origtest = -rdynamic
 346 $(objpfx)origtest.out: $(objpfx)testobj1.so
 347
 348 ifeq ($(have-thread-library),yes)
 349 $(objpfx)resolvfail: $(libdl) $(shared-thread-library)
 350 else
 351 $(objpfx)resolvfail: $(libdl)
 352 endif
 353
 354 $(objpfx)constload1: $(libdl)
 355 $(objpfx)constload1.out: $(objpfx)constload2.so $(objpfx)constload3.so
 356
 357 $(objpfx)order: $(addprefix $(objpfx),dep4.so dep3.so dep2.so dep1.so)
 358
 359 $(objpfx)order.out: $(objpfx)order
 360         $(elf-objpfx)$(rtld-installed-name) \
 361           --library-path $(rpath-link)$(patsubst %,:%,$(sysdep-library-path)) \
 362           $(objpfx)order > $@
 363         (echo "0123456789" | cmp $@ -) > /dev/null
 364
 365 $(objpfx)vismain: $(addprefix $(objpfx),vismod1.so vismod2.so)
 366 $(objpfx)vismain.out: $(addprefix $(objpfx),vismod3.so)
 367 vismain-ENV = LD_PRELOAD=$(addprefix $(objpfx),vismod3.so)
 368
 369 $(objpfx)noload: $(objpfx)testobj1.so
 370 LDFLAGS-noload = -rdynamic
 371 $(objpfx)noload.out: $(objpfx)testobj5.so
 372
 373 LDFLAGS-nodelete = -rdynamic
 374 LDFLAGS-nodelmod1.so = -Wl,--enable-new-dtags,-z,nodelete
 375 LDFLAGS-nodelmod4.so = -Wl,--enable-new-dtags,-z,nodelete
 376 $(objpfx)nodelete: $(libdl)
 377 $(objpfx)nodelete.out: $(objpfx)nodelmod1.so $(objpfx)nodelmod2.so \
 378                        $(objpfx)nodelmod3.so
 379
 380 LDFLAGS-nodlopenmod.so = -Wl,--enable-new-dtags,-z,nodlopen
 381 $(objpfx)nodlopen: $(libdl)
 382 $(objpfx)nodlopen.out: $(objpfx)nodlopenmod.so
 383
 384 $(objpfx)filtmod1.so: $(objpfx)filtmod1.os $(objpfx)filtmod2.so
 385         $(LINK.o) -shared -o $@ -B$(csu-objpfx) $(LDFLAGS.so) \
 386                   -L$(subst :, -L,$(rpath-link)) \
 387                   -Wl,-rpath-link=$(rpath-link) \
 388                   $< -Wl,-F,$(objpfx)filtmod2.so
 389 $(objpfx)filter: $(objpfx)filtmod1.so
 390
 391 $(objpfx)unload: $(libdl)
 392 $(objpfx)unload.out: $(objpfx)unloadmod.so
 393
 394 $(objpfx)reldep: $(libdl)
 395 $(objpfx)reldep.out: $(objpfx)reldepmod1.so $(objpfx)reldepmod2.so
 396
 397 $(objpfx)reldep2: $(libdl)
 398 $(objpfx)reldep2.out: $(objpfx)reldepmod1.so $(objpfx)reldepmod3.so
 399
 400 $(objpfx)reldep3: $(libdl)
 401 $(objpfx)reldep3.out: $(objpfx)reldepmod1.so $(objpfx)reldepmod4.so
 402
 403 $(objpfx)reldep4: $(libdl)
 404 $(objpfx)reldep4.out: $(objpfx)reldep4mod1.so $(objpfx)reldep4mod2.so
 405
 406 $(objpfx)next: $(objpfx)nextmod1.so $(objpfx)nextmod2.so $(libdl)
 407
 408 $(objpfx)unload2: $(libdl)
 409 $(objpfx)unload2.out: $(objpfx)unload2mod.so $(objpfx)unload2dep.so
 410
 411 $(objpfx)lateglobal: $(libdl)
 412 $(objpfx)lateglobal.out: $(objpfx)ltglobmod1.so $(objpfx)ltglobmod2.so
 413
 414 $(objpfx)tst-pathopt: $(libdl)
 415 $(objpfx)tst-pathopt.out: tst-pathopt.sh $(objpfx)tst-pathopt \
 416                           $(objpfx)pathoptobj.so
 417         $(SHELL) -e $< $(common-objpfx)
 418
 419 $(objpfx)initfirst: $(libdl)
 420 $(objpfx)initfirst.out: $(objpfx)firstobj.so
 421
 422 $(objpfx)global: $(objpfx)globalmod1.so
 423 $(objpfx)global.out: $(objpfx)reldepmod1.so
 424
 425 $(objpfx)dblload: $(libdl)
 426 $(objpfx)dblload.out: $(objpfx)dblloadmod1.so $(objpfx)dblloadmod2.so
 427
 428 $(objpfx)dblunload: $(libdl)
 429 $(objpfx)dblunload.out: $(objpfx)dblloadmod1.so $(objpfx)dblloadmod2.so
 430
 431 $(objpfx)reldep5: $(libdl)
 432 $(objpfx)reldep5.out: $(objpfx)reldepmod5.so $(objpfx)reldepmod5.so
 433
 434 $(objpfx)reldep6: $(libdl)
 435 $(objpfx)reldep6.out: $(objpfx)reldep6mod3.so $(objpfx)reldep6mod4.so