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482eec0d | 1 | # Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc. |
01cc0be6 RM |
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 Library General Public License as | |
6 | # published by the Free Software Foundation; either version 2 of the | |
7 | # 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 | # Library General Public License for more details. | |
13 | ||
14 | # You should have received a copy of the GNU Library General Public | |
afd4eb37 UD |
15 | # License along with the GNU C Library; see the file COPYING.LIB. If not, |
16 | # write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
17 | # Boston, MA 02111-1307, USA. | |
01cc0be6 | 18 | |
3db52d94 UD |
19 | # Makefile for elf subdirectory of GNU C Library. |
20 | ||
d66e34cd RM |
21 | subdir := elf |
22 | ||
f21acc89 | 23 | headers = elf.h bits/elfclass.h bits/dlfcn.h link.h dlfcn.h |
cddcfecf | 24 | routines = $(dl-routines) dl-open dl-close dl-symbol dl-support \ |
b3fc5f84 | 25 | dl-addr enbl-secure dl-profstub dl-origin dl-libc |
266180eb RM |
26 | |
27 | # The core dynamic linking functions are in libc for the static and | |
28 | # profiled libraries. | |
f18edac3 | 29 | dl-routines = $(addprefix dl-,load cache lookup object reloc deps \ |
3996f34b | 30 | runtime error init fini debug misc \ |
e27b79d3 | 31 | version profile) |
266180eb | 32 | # But they are absent from the shared libc, because that code is in ld.so. |
e27b79d3 | 33 | elide-routines.os = $(dl-routines) dl-support enbl-secure |
266180eb RM |
34 | |
35 | # ld.so uses those routines, plus some special stuff for being the program | |
36 | # interpreter and operating independent of libc. | |
e27b79d3 | 37 | rtld-routines := rtld $(dl-routines) dl-sysdep dl-environ dl-minimal |
266180eb | 38 | distribute = $(rtld-routines:=.c) dynamic-link.h do-rel.h dl-machine.h \ |
bfce746a | 39 | dl-hash.h soinit.c sofini.c ldd.bash.in eval.c \ |
d09ef153 | 40 | genrtldtbl.awk atomicity.h dl-procinfo.h ldsodefs.h \ |
fabad360 | 41 | dl-librecon.h interp.c sln.c dl-dst.h hp-timing.h \ |
448c3875 | 42 | testobj1.c testobj2.c testobj3.c testobj4.c testobj5.c \ |
fabad360 UD |
43 | testobj6.c testobj1_1.c failobj.c do-lookup.h \ |
44 | gen-trusted-dirs.awk | |
d66e34cd | 45 | |
05f732b3 UD |
46 | include ../Makeconfig |
47 | ||
f0f1bf85 UD |
48 | extra-libs = libdl |
49 | extra-libs-others = $(extra-libs) | |
05f732b3 UD |
50 | libdl-routines := dlopen dlclose dlsym dlvsym dlerror dladdr |
51 | ifeq ($(versioning),yes) | |
52 | libdl-routines += dlopenold | |
53 | libdl-shared-only-routines := dlopenold | |
54 | endif | |
d66e34cd | 55 | |
6598ac30 | 56 | before-compile = $(objpfx)trusted-dirs.h |
fd26970f | 57 | |
bdd421cc | 58 | ifeq ($(versioning),yes) |
8d8c6efa | 59 | ld-map = $(common-objpfx)ld.so.map |
bdd421cc UD |
60 | endif |
61 | ||
d66e34cd | 62 | ifeq (yes,$(build-shared)) |
c7562c74 | 63 | extra-objs = $(rtld-routines:=.os) soinit.os sofini.os eval.os interp.os |
6598ac30 | 64 | generated = librtld.os dl-allobjs.os ld.so trusted-dirs.h trusted-dirs.st |
8d57beea | 65 | install-others = $(inst_slibdir)/$(rtld-installed-name) |
b122c703 | 66 | install-bin = ldd |
da2d1bc5 | 67 | generated += ldd |
f49bc43f | 68 | endif |
86d2c878 | 69 | |
9d141cae | 70 | others = sprof sln |
ea278354 | 71 | install-bin += sprof |
9d141cae UD |
72 | others-static = sln |
73 | install-rootsbin = sln | |
ae828bc6 | 74 | |
1ef32c3d | 75 | ifeq (yes,$(has-ldconfig)) |
e1586792 | 76 | others-static += ldconfig |
da2d1bc5 | 77 | others += ldconfig |
9d141cae | 78 | install-rootsbin += ldconfig |
1ef32c3d UD |
79 | endif |
80 | ||
2f512715 | 81 | ifeq (yes,$(build-shared)) |
dc5efe83 | 82 | tests = loadtest restest1 preloadtest loadfail multiload origtest |
2f512715 | 83 | endif |
a25f2023 UD |
84 | modules-names = testobj1 testobj2 testobj3 testobj4 testobj5 testobj6 \ |
85 | testobj1_1 failobj | |
86 | extra-objs += $(modules-names:=.os) | |
482eec0d | 87 | |
aaff4ba9 UD |
88 | ifeq ($(build-shared),yes) |
89 | libdl = $(objpfx)libdl.so$(libdl.so-version) | |
90 | else | |
91 | libdl = $(objpfx)libdl.a | |
92 | endif | |
93 | ||
01cc0be6 | 94 | include ../Rules |
d66e34cd | 95 | |
86d2c878 | 96 | |
1ef32c3d | 97 | ifeq (yes,$(build-shared)) |
a89d30d4 RM |
98 | # Make sure these things are built in the `make lib' pass so they can be used |
99 | # to run programs during the `make others' pass. | |
100 | lib-noranlib: $(objpfx)$(rtld-installed-name) \ | |
101 | $(addprefix $(objpfx),$(extra-objs)) | |
102 | endif | |
103 | ||
db2286f6 RM |
104 | # Command to link into a larger single relocatable object. |
105 | reloc-link = $(LINK.o) -nostdlib -nostartfiles -r -o $@ | |
106 | ||
40a55d20 | 107 | $(objpfx)dl-allobjs.os: $(rtld-routines:%=$(objpfx)%.os) |
db2286f6 RM |
108 | $(reloc-link) $^ |
109 | ||
86d2c878 | 110 | # Link together the dynamic linker into a single relocatable object. |
40a55d20 | 111 | $(objpfx)librtld.os: $(objpfx)dl-allobjs.os $(common-objpfx)libc_pic.a |
db2286f6 | 112 | $(reloc-link) '-Wl,-(' $^ -lgcc '-Wl,-)' |
d66e34cd | 113 | |
f21acc89 UD |
114 | # Do we need a linker script? |
115 | rtld-ldscript-in := $(firstword $(wildcard $(+sysdep_dirs:%=%/rtld-ldscript.in))) | |
14ea22e9 | 116 | |
f21acc89 | 117 | ifneq (,$(rtld-ldscript-in)) |
880f421f UD |
118 | rtld-ldscript = $(objpfx)rtld-ldscript |
119 | generated += rtld-ldscript | |
120 | ||
121 | LDFLAGS-rtld = -T $(rtld-ldscript) | |
122 | before-compile += $(rtld-ldscript) | |
f21acc89 | 123 | |
f21acc89 UD |
124 | rtld-parms = $(wildcard $(+sysdep_dirs:%=%/rtld-parms)) |
125 | include $(rtld-parms) | |
880f421f UD |
126 | |
127 | $(rtld-ldscript): $(rtld-ldscript-in) $(rtld-parms) | |
f21acc89 UD |
128 | sed -e 's#@@rtld-oformat@@#$(rtld-oformat)#' \ |
129 | -e 's#@@rtld-arch@@#$(rtld-arch)#' \ | |
130 | -e 's#@@rtld-entry@@#$(rtld-entry)#' \ | |
131 | -e 's#@@rtld-base@@#$(rtld-base)#' $< >$@ | |
880f421f | 132 | endif |
f21acc89 | 133 | |
9afc8a59 UD |
134 | $(objpfx)ld.so: $(objpfx)librtld.os $(addprefix $(objpfx),$(rtld-ldscript)) \ |
135 | $(ld-map) | |
7ef90c15 UD |
136 | $(LINK.o) -nostdlib -nostartfiles -shared -o $@ $(LDFLAGS-rtld) \ |
137 | $(filter-out $(rtld-ldscript) $(map-file),$^) \ | |
138 | $(load-map-file) -Wl,-soname=$(rtld-installed-name) | |
266180eb | 139 | |
c7562c74 UD |
140 | # interp.c exists just to get this string into the libraries. |
141 | CFLAGS-interp.c = -D'RUNTIME_LINKER="$(slibdir)/$(rtld-installed-name)"' | |
142 | ||
1ef32c3d | 143 | ifneq (ld.so,$(rtld-installed-name)) |
afd4eb37 | 144 | # Make sure ld.so.1 exists in the build directory so we can link |
852fc4b9 RM |
145 | # against it. |
146 | $(objpfx)$(rtld-installed-name): $(objpfx)ld.so | |
147 | rm -f $@ | |
f332db02 | 148 | ln -s $(<F) $@ |
da2d1bc5 | 149 | generated += $(rtld-installed-name) |
852fc4b9 RM |
150 | endif |
151 | ||
fd26970f UD |
152 | # Build a file mentioning all trustworthy directories to look for shared |
153 | # libraries when using LD_LIBRARY_PATH in a setuid program. The user can | |
154 | # add directories to the list by defining $(user-defined-trusted-dirs) | |
155 | # before starting make. | |
6598ac30 UD |
156 | $(objpfx)trusted-dirs.h: $(objpfx)trusted-dirs.st; @: |
157 | $(objpfx)trusted-dirs.st: Makefile $(..)Makeconfig | |
1ef32c3d | 158 | $(make-target-directory) |
ab7eb292 UD |
159 | echo "$(subst :, ,$(default-rpath) $(user-defined-trusted-dirs))" \ |
160 | | $(AWK) -f gen-trusted-dirs.awk > ${@:st=T}; | |
6598ac30 UD |
161 | $(move-if-change) ${@:st=T} ${@:st=h} |
162 | touch $@ | |
9afc8a59 | 163 | CPPFLAGS-dl-load.c = -I$(objpfx). |
56552e42 | 164 | CFLAGS-dl-load.c += -Wno-uninitialized |
86d2c878 | 165 | |
266180eb RM |
166 | # Specify the dependencies of libdl.so; its commands come from the generic |
167 | # rule to build a shared library. | |
7e0e6f50 | 168 | $(objpfx)libdl.so: $(objpfx)libdl_pic.a $(common-objpfx)libc.so $(objpfx)ld.so |
b122c703 | 169 | |
9f2a9248 | 170 | ifeq (yes,$(build-shared)) |
73237de3 | 171 | $(inst_slibdir)/$(rtld-version-installed-name): $(objpfx)ld.so $(+force) |
1ef32c3d UD |
172 | $(do-install-program) |
173 | ||
8d57beea UD |
174 | $(inst_slibdir)/$(rtld-installed-name): \ |
175 | $(inst_slibdir)/$(rtld-version-installed-name) | |
1ef32c3d | 176 | $(make-shlib-link) |
b122c703 | 177 | |
5148d49f UD |
178 | # Special target called by parent to install just the dynamic linker. |
179 | .PHONY: ldso_install | |
180 | ldso_install: $(inst_slibdir)/$(rtld-installed-name) | |
9f2a9248 | 181 | endif |
5148d49f | 182 | |
cb343854 | 183 | |
926e512f RM |
184 | common-ldd-rewrite = -e 's%@RTLD@%$(slibdir)/$(rtld-installed-name)%g' \ |
185 | -e 's%@VERSION@%$(version)%g' | |
1ddf537f | 186 | sh-ldd-rewrite = $(common-ldd-rewrite) -e 's%@BASH@%/bin/sh%g;s/\$$"/"/g' |
926e512f | 187 | bash-ldd-rewrite = $(common-ldd-rewrite) -e 's%@BASH@%$(BASH)%g' \ |
cb343854 UD |
188 | -e 's%@TEXTDOMAINDIR@%$(localedir)%g' |
189 | ||
84384f5b | 190 | ifneq ($(have-bash2),yes) |
cb343854 | 191 | ldd-shell = sh |
e2102c14 UD |
192 | else |
193 | ldd-shell = bash | |
cb343854 UD |
194 | endif |
195 | ||
196 | ifeq ($(ldd-rewrite-script),no) | |
197 | define gen-ldd | |
198 | sed $($(ldd-shell)-ldd-rewrite) < $< > $@.new | |
199 | endef | |
84384f5b | 200 | else |
cb343854 UD |
201 | define gen-ldd |
202 | sed $($(ldd-shell)-ldd-rewrite) < $< | sed -f $(ldd-rewrite-script) > $@.new | |
203 | endef | |
204 | endif | |
205 | ||
926e512f | 206 | $(objpfx)ldd: ldd.bash.in $(common-objpfx)soversions.mk \ |
ee74a442 | 207 | $(common-objpfx)config.make |
cb343854 | 208 | $(gen-ldd) |
84384f5b UD |
209 | chmod 555 $@.new |
210 | mv -f $@.new $@ | |
cb343854 | 211 | |
ae828bc6 | 212 | |
aaff4ba9 | 213 | $(objpfx)sprof: $(libdl) |
96bda0ea | 214 | \f |
482eec0d | 215 | test-modules = $(addprefix $(objpfx),$(addsuffix .so,$(modules-names))) |
407a7d0e | 216 | generated += $(addsuffix .so,$(modules-names)) |
482eec0d | 217 | |
aaff4ba9 UD |
218 | $(objpfx)testobj1.so: $(libdl) |
219 | $(objpfx)testobj1_1.so: $(objpfx)testobj1.so $(libdl) | |
220 | $(objpfx)testobj2.so: $(objpfx)testobj1.so $(libdl) | |
221 | $(objpfx)testobj3.so: $(libdl) | |
222 | $(objpfx)testobj4.so: $(libdl) | |
223 | $(objpfx)testobj5.so: $(libdl) | |
224 | $(objpfx)testobj6.so: $(libdl) | |
e18db2b0 | 225 | $(objpfx)failobj.so: $(objpfx)testobj6.so |
482eec0d | 226 | |
fe60f764 | 227 | $(test-modules): $(objpfx)%.so: $(objpfx)%.os |
482eec0d UD |
228 | $(build-module) |
229 | ||
aaff4ba9 | 230 | $(objpfx)loadtest: $(libdl) |
482eec0d UD |
231 | LDFLAGS-loadtest = -rdynamic |
232 | ||
233 | $(objpfx)loadtest.out: $(test-modules) | |
6bd06384 | 234 | |
aaff4ba9 | 235 | $(objpfx)restest1: $(objpfx)testobj1.so $(objpfx)testobj1_1.so $(libdl) |
e18db2b0 | 236 | LDFLAGS-restest1 = -rdynamic |
6bd06384 UD |
237 | |
238 | $(objpfx)restest1.out: $(test-modules) | |
3d91edb2 | 239 | |
e18db2b0 | 240 | preloadtest-preloads = testobj1 testobj2 testobj3 testobj4 testobj5 |
10584d2e | 241 | $(objpfx)preloadtest: $(objpfx)testobj6.so |
10584d2e | 242 | LDFLAGS-preloadtest = -rdynamic |
e18db2b0 UD |
243 | $(objpfx)preloadtest.out: $(preloadtest-preloads:%=$(objpfx)%.so) |
244 | preloadtest-ENV = \ | |
245 | LD_PRELOAD=$(subst $(empty) ,:,$(strip $(preloadtest-preloads:=.so))) | |
1e262312 | 246 | |
aaff4ba9 | 247 | $(objpfx)loadfail: $(libdl) |
1e262312 UD |
248 | LDFLAGS-loadfail = -rdynamic |
249 | ||
61e0617a UD |
250 | $(objpfx)loadfail.out: $(objpfx)failobj.so |
251 | ||
252 | $(objpfx)multiload: $(libdl) | |
253 | LDFLAGS-multiload = -rdynamic | |
bf726173 | 254 | CFLAGS-multiload.c = -DOBJDIR=\"$(elf-objpfx)\" |
61e0617a UD |
255 | |
256 | $(objpfx)multiload.out: $(objpfx)testobj1.so | |
dc5efe83 UD |
257 | |
258 | $(objpfx)origtest: $(libdl) | |
259 | $(objpfx)origtest.out: $(objpfx)testobj1.so | |
482eec0d | 260 | \f |
96bda0ea RM |
261 | # muwahaha |
262 | ||
175b633d | 263 | LDFLAGS-dl.so = -Wl,-dynamic-linker,$(slibdir)/$(rtld-installed-name) |
40a55d20 | 264 | $(objpfx)libdl.so: $(objpfx)eval.os |