mirror of
https://sourceware.org/git/glibc.git
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f91f1c0fb8
This change creates a link map in static executables to serve as the global search list for dlopen. It fixes a problem with the inability to access the global symbol object and a crash on an attempt to map a DSO into the global scope. Some code that has become dead after the addition of this link map is removed too and test cases are provided.
131 lines
4.2 KiB
Makefile
131 lines
4.2 KiB
Makefile
# Copyright (C) 1995-2013 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library; if not, see
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# <http://www.gnu.org/licenses/>.
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subdir := dlfcn
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headers := bits/dlfcn.h dlfcn.h
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extra-libs := libdl
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libdl-routines := dlopen dlclose dlsym dlvsym dlerror dladdr dladdr1 dlinfo \
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dlmopen dlfcn
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routines := $(patsubst %,s%,$(filter-out dlfcn,$(libdl-routines)))
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elide-routines.os := $(routines)
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extra-libs-others := libdl
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include ../Makeconfig
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ifeq ($(versioning),yes)
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libdl-routines += dlopenold
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libdl-shared-only-routines := dlopenold dlfcn
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endif
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ifeq (yes,$(build-shared))
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tests = glrefmain failtest tst-dladdr default errmsg1 tstcxaatexit \
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bug-dlopen1 bug-dlsym1 tst-dlinfo bug-atexit1 bug-atexit2 \
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bug-atexit3 tstatexit
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endif
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modules-names = glreflib1 glreflib2 glreflib3 failtestmod defaultmod1 \
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defaultmod2 errmsg1mod modatexit modcxaatexit \
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bug-dlsym1-lib1 bug-dlsym1-lib2 bug-atexit1-lib \
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bug-atexit2-lib bug-atexit3-lib
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failtestmod.so-no-z-defs = yes
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glreflib2.so-no-z-defs = yes
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errmsg1mod.so-no-z-defs = yes
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ifeq (yes,$(build-shared))
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tests += tststatic tststatic2 tststatic3 tststatic4
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tests-static += tststatic tststatic2 tststatic3 tststatic4
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modules-names += modstatic modstatic2 modstatic3
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tststatic-ENV = LD_LIBRARY_PATH=$(objpfx):$(common-objpfx):$(common-objpfx)elf
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tststatic2-ENV = $(tststatic-ENV)
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tststatic3-ENV = $(tststatic-ENV)
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tststatic4-ENV = $(tststatic-ENV)
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endif
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extra-test-objs += $(modules-names:=.os)
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generated := $(modules-names:=.so)
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include ../Rules
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test-modules = $(addprefix $(objpfx),$(addsuffix .so,$(modules-names)))
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ifeq ($(build-shared),yes)
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# Build all the modules even when not actually running test programs.
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tests: $(test-modules)
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endif
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$(objpfx)glrefmain: $(libdl)
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$(objpfx)glrefmain.out: $(objpfx)glrefmain \
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$(objpfx)glreflib1.so $(objpfx)glreflib2.so
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$(objpfx)failtest: $(libdl)
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$(objpfx)failtest.out: $(objpfx)failtestmod.so
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$(objpfx)tst-dladdr: $(libdl)
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$(objpfx)tst-dladdr.out: $(objpfx)glreflib1.so
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$(objpfx)tst-dlinfo: $(libdl)
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$(objpfx)tst-dlinfo.out: $(objpfx)glreflib3.so
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LDFLAGS-glreflib3.so = -Wl,-rpath,:
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LDFLAGS-default = $(LDFLAGS-rdynamic)
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$(objpfx)default: $(libdl) $(objpfx)defaultmod1.so $(objpfx)defaultmod2.so
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$(objpfx)defaultmod1.so: $(libdl)
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LDFLAGS-defaultmod2.so = $(LDFLAGS-Bsymbolic)
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$(objpfx)defaultmod2.so: $(libdl)
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$(objpfx)errmsg1: $(libdl)
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$(objpfx)errmsg1.out: $(objpfx)errmsg1 $(objpfx)errmsg1mod.so
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$(objpfx)tstatexit: $(libdl)
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$(objpfx)tstatexit.out: $(objpfx)tstatexit $(objpfx)modatexit.so
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$(objpfx)tstcxaatexit: $(libdl)
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$(objpfx)tstcxaatexit.out: $(objpfx)tstcxaatexit $(objpfx)modcxaatexit.so
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$(objpfx)tststatic: $(objpfx)libdl.a
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$(objpfx)tststatic.out: $(objpfx)tststatic $(objpfx)modstatic.so
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$(objpfx)tststatic2: $(objpfx)libdl.a
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$(objpfx)tststatic2.out: $(objpfx)tststatic2 $(objpfx)modstatic.so \
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$(objpfx)modstatic2.so
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$(objpfx)modstatic2.so: $(libdl)
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$(objpfx)tststatic3: $(objpfx)libdl.a
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$(objpfx)tststatic3.out: $(objpfx)tststatic3 $(objpfx)modstatic3.so
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$(objpfx)tststatic4: $(objpfx)libdl.a
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$(objpfx)tststatic4.out: $(objpfx)tststatic4 $(objpfx)modstatic3.so
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$(objpfx)bug-dlopen1: $(libdl)
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$(objpfx)bug-dlsym1: $(libdl) $(objpfx)bug-dlsym1-lib2.so
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$(objpfx)bug-dlsym1.out: $(objpfx)bug-dlsym1-lib1.so \
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$(objpfx)bug-dlsym1-lib2.so
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$(objpfx)bug-dlsym1-lib1.so: $(objpfx)bug-dlsym1-lib2.so
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$(objpfx)bug-atexit1: $(libdl)
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$(objpfx)bug-atexit1.out: $(objpfx)bug-atexit1-lib.so
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$(objpfx)bug-atexit2: $(libdl)
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$(objpfx)bug-atexit2.out: $(objpfx)bug-atexit2-lib.so
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LDLIBS-bug-atexit3-lib.so = -lstdc++ -lgcc_eh
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$(objpfx)bug-atexit3: $(libdl)
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$(objpfx)bug-atexit3.out: $(objpfx)bug-atexit3-lib.so
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