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https://sourceware.org/git/glibc.git
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fada901819
Calling free directly may end up freeing a pointer allocated by the dynamic loader using malloc from libc.so in the base namespace using the allocator from libc.so in a secondary namespace, which results in crashes. This commit redirects the free call through GLRO and the dynamic linker, to reach the correct namespace. It also cleans up the dlerror handling along the way, so that pthread_setspecific is no longer needed (which avoids triggering bug 24774).
155 lines
4.9 KiB
Makefile
155 lines
4.9 KiB
Makefile
# Copyright (C) 1995-2021 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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# <https://www.gnu.org/licenses/>.
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subdir := dlfcn
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include ../Makeconfig
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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 := $(routines)
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routines += libc_dlerror_result
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extra-libs-others := libdl
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ifeq ($(build-shared),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,$(build-shared))
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tests = glrefmain failtest tst-dladdr default errmsg1 tstcxaatexit \
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bug-dlopen1 bug-dlsym1 tst-dlinfo bug-atexit1 bug-atexit2 \
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bug-atexit3 tstatexit bug-dl-leaf tst-rec-dlopen
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endif
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modules-names = glreflib1 glreflib2 glreflib3 failtestmod defaultmod1 \
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defaultmod2 errmsg1mod modatexit modcxaatexit \
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bug-dlsym1-lib1 bug-dlsym1-lib2 bug-atexit1-lib \
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bug-atexit2-lib bug-dl-leaf-lib \
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bug-dl-leaf-lib-cb moddummy1 moddummy2
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failtestmod.so-no-z-defs = yes
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glreflib2.so-no-z-defs = yes
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errmsg1mod.so-no-z-defs = yes
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ifeq (yes,$(build-shared))
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tests += tststatic tststatic2 tststatic3 tststatic4 tststatic5
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tests-static += tststatic tststatic2 tststatic3 tststatic4 tststatic5
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modules-names += modstatic modstatic2 modstatic3 modstatic5
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tststatic-ENV = LD_LIBRARY_PATH=$(ld-library-path):$(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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tststatic5-ENV = $(tststatic-ENV)
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ifneq (,$(CXX))
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modules-names += bug-atexit3-lib
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else
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tests-unsupported += bug-atexit3
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endif
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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)tststatic5: $(objpfx)libdl.a
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$(objpfx)tststatic5.out: $(objpfx)tststatic5 $(objpfx)modstatic5.so
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$(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: $(objpfx)bug-atexit2-lib.so
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ifneq (,$(CXX))
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LDLIBS-bug-atexit3-lib.so = -lstdc++ -lgcc_eh
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$(objpfx)bug-atexit3-lib.so: $(libsupport)
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$(objpfx)bug-atexit3: $(libdl)
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$(objpfx)bug-atexit3.out: $(objpfx)bug-atexit3-lib.so
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endif
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$(objpfx)bug-dl-leaf: $(objpfx)bug-dl-leaf-lib.so
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$(objpfx)bug-dl-leaf.out: $(objpfx)bug-dl-leaf-lib-cb.so
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$(objpfx)bug-dl-leaf-lib.so: $(libdl)
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$(objpfx)bug-dl-leaf-lib-cb.so: $(objpfx)bug-dl-leaf-lib.so
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$(objpfx)tst-rec-dlopen: $(libdl)
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$(objpfx)tst-rec-dlopen.out: $(objpfx)moddummy1.so $(objpfx)moddummy2.so
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