git://sourceware.org / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| d66e34cd RM |
1 | # Makefile for elf subdirectory of GNU C Library. |
| 2 | ||
| 01cc0be6 RM |
3 | # Copyright (C) 1995 Free Software Foundation, Inc. |
| 4 | # This file is part of the GNU C Library. | |
| 5 | ||
| 6 | # The GNU C Library is free software; you can redistribute it and/or | |
| 7 | # modify it under the terms of the GNU Library General Public License as | |
| 8 | # published by the Free Software Foundation; either version 2 of the | |
| 9 | # License, or (at your option) any later version. | |
| 10 | ||
| 11 | # The GNU C Library is distributed in the hope that it will be useful, | |
| 12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | # Library General Public License for more details. | |
| 15 | ||
| 16 | # You should have received a copy of the GNU Library General Public | |
| 17 | # License along with the GNU C Library; see the file COPYING.LIB. If | |
| 18 | # not, write to the Free Software Foundation, Inc., 675 Mass Ave, | |
| 19 | # Cambridge, MA 02139, USA. | |
| 20 | ||
| d66e34cd RM |
21 | subdir := elf |
| 22 | ||
| 23 | headers := elf.h libelf.h link.h dlfcn.h | |
| 24 | routines := init-first | |
| 25 | ||
| 26 | extra-libs = libelf libdl | |
| 27 | libelf-routines := elf_hash | |
| 28 | libdl-routines := dlopen dlclose dlsym dlerror | |
| 29 | libdl-inhibit-o = $(filter-out .so,$(object-suffixes)) # Build only shared. | |
| d66e34cd RM |
30 | |
| 31 | rtld-routines := rtld $(addprefix dl-,load lookup object reloc \ | |
| 32 | runtime sysdep error init fini) | |
| 0324daa0 | 33 | distribute = $(rtld-routines:=.c) dynamic-link.h do-rel.h \ |
| 86d2c878 | 34 | soinit.c sofini.c ldd.sh.in linux-compat.c |
| 01cc0be6 | 35 | |
| d66e34cd RM |
36 | include ../Makeconfig |
| 37 | ||
| 38 | ifeq (yes,$(build-shared)) | |
| 0324daa0 | 39 | extra-objs = $(rtld-routines:=.so) soinit.so sofini.so |
| 86d2c878 | 40 | generated = librtld.so |
| d17e960c | 41 | install-others = $(libdir)/$(rtld-installed-name) |
| b122c703 | 42 | install-bin = ldd |
| 86d2c878 RM |
43 | |
| 44 | ifneq (,$(filter linux%,$(config-os))) | |
| 45 | extra-objs += linux-compat.so | |
| 46 | install-lib += ld-linux.so.1 | |
| 47 | endif | |
| d66e34cd | 48 | endif |
| 01cc0be6 RM |
49 | |
| 50 | include ../Rules | |
| d66e34cd | 51 | |
| 86d2c878 RM |
52 | |
| 53 | # Link together the dynamic linker into a single relocatable object. | |
| 54 | # We use this to produce both the ABI-compliant and Linux-compatible | |
| 55 | # dynamic linker shared objects below. | |
| 56 | $(objpfx)librtld.so: $(rtld-routines:%=$(objpfx)%.so) \ | |
| 57 | $(patsubst %,$(common-objpfx)lib%_pic.a,\ | |
| 58 | elf c $(LDLIBS-c.so:-l%=%)) | |
| 59 | $(LINK.o) -nostdlib -nostartfiles -r -o $@ \ | |
| d66e34cd RM |
60 | '-Wl,-(' $^ -lgcc '-Wl,-)' |
| 61 | ||
| 86d2c878 RM |
62 | $(objpfx)ld.so $(objpfx)ld-linux.so.1: $(objpfx)librtld.so |
| 63 | $(LINK.o) -nostdlib -nostartfiles -shared -o $@ $^ | |
| 64 | ||
| 65 | # The Linux-compatible dynamic linker shared object is just the same | |
| 66 | # with one object file of compatibility initialization code added. | |
| 67 | $(objpfx)ld-linux.so.1: $(objpfx)linux-compat.so | |
| 68 | ||
| 69 | ||
| 7e0e6f50 RM |
70 | $(objpfx)libdl.so: $(objpfx)libdl_pic.a $(common-objpfx)libc.so $(objpfx)ld.so |
| 71 | $(patsubst %/,cd %;,$(objpfx)) \ | |
| 72 | $(LINK.o) -shared -o $(@:$(objpfx)%=%) \ | |
| 1f4a4317 RM |
73 | $(LDFLAGS.so) $(LDFLAGS-dl.so) \ |
| 74 | -Wl,--whole-archive $(^:$(objpfx)%=%) | |
| b122c703 RM |
75 | |
| 76 | $(libdir)$(rtld-installed-name): $(objpfx)ld.so; $(do-install-program) | |
| 77 | ||
| 78 | $(objpfx)ldd: ldd.sh.in | |
| 79 | sed 's%@RTLD@%$(libdir)/$(rtld-installed-name)%g' < $< > $@.new | |
| 80 | mv -f $@.new $@ |