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Install shared objects under their ABI names
Previously, the installed objects were named like libc-2.33.so, and the ABI soname libc.so.6 was just a symbolic link. The Makefile targets to install these symbolic links are no longer needed after this, so they are removed with this commit. The more general $(make-link) command (which invokes scripts/rellns-sh) is retained because other symbolic links are still needed. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@rehdat.com>
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6
Makefile
6
Makefile
@ -109,12 +109,6 @@ elf/ldso_install:
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# Ignore the error if we cannot update /etc/ld.so.cache.
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ifeq (no,$(cross-compiling))
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ifeq (yes,$(build-shared))
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install: install-symbolic-link
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.PHONY: install-symbolic-link
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install-symbolic-link: subdir_install
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$(symbolic-link-prog) $(symbolic-link-list)
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rm -f $(symbolic-link-list)
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install:
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-test ! -x $(elf-objpfx)ldconfig || LC_ALL=C \
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$(elf-objpfx)ldconfig $(addprefix -r ,$(install_root)) \
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45
Makerules
45
Makerules
@ -990,14 +990,12 @@ versioned := $(strip $(foreach so,$(install-lib.so),\
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install-lib.so-versioned := $(filter $(versioned), $(install-lib.so))
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install-lib.so-unversioned := $(filter-out $(versioned), $(install-lib.so))
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# For libraries whose soname have version numbers, we install three files:
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# For libraries whose soname have version numbers, we install two files:
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# $(inst_libdir)/libfoo.so -- for linking, symlink or ld script
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# $(inst_slibdir)/libfoo.so.NN -- for loading by SONAME, symlink
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# $(inst_slibdir)/libfoo-X.Y.Z.so -- the real shared object file
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# $(inst_slibdir)/libfoo.so.NN -- for loading by SONAME
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install-lib-nosubdir: $(install-lib.so-unversioned:%=$(inst_slibdir)/%) \
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$(foreach L,$(install-lib.so-versioned),\
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$(inst_libdir)/$L \
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$(inst_slibdir)/$(L:.so=)-$(version).so \
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$(inst_slibdir)/$L$($L-version))
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# Install all the unversioned shared libraries.
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@ -1030,35 +1028,10 @@ ln -f $(objpfx)/$(@F) $@
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endef
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endif
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ifeq (yes,$(build-shared))
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ifeq (no,$(cross-compiling))
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symbolic-link-prog := $(elf-objpfx)sln
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symbolic-link-list := $(elf-objpfx)symlink.list
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define make-shlib-link
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echo `$(..)scripts/rellns-sh -p $< $@` $@ >> $(symbolic-link-list)
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endef
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else # cross-compiling
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# We need a definition that can be used by elf/Makefile's install rules.
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symbolic-link-prog = $(LN_S)
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endif
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endif
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ifndef make-shlib-link
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define make-shlib-link
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rm -f $@
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$(LN_S) `$(..)scripts/rellns-sh -p $< $@` $@
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endef
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endif
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ifdef libc.so-version
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# For a library specified to be version N, install three files:
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# libc.so -> libc.so.N (e.g. libc.so.6)
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# libc.so.6 -> libc-VERSION.so (e.g. libc-1.10.so)
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$(inst_slibdir)/libc.so$(libc.so-version): $(inst_slibdir)/libc-$(version).so \
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$(+force)
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$(make-shlib-link)
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$(inst_slibdir)/libc-$(version).so: $(common-objpfx)libc.so $(+force)
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$(inst_slibdir)/libc.so$(libc.so-version): $(common-objpfx)libc.so $(+force)
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$(do-install-program)
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install: $(inst_slibdir)/libc.so$(libc.so-version)
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# This fragment of linker script gives the OUTPUT_FORMAT statement
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@ -1126,15 +1099,7 @@ include $(o-iterator)
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generated += $(foreach o,$(versioned),$o$($o-version))
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define o-iterator-doit
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$(inst_slibdir)/$o$($o-version): $(inst_slibdir)/$(o:.so=)-$(version).so \
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$(+force);
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$$(make-shlib-link)
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endef
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object-suffixes-left := $(versioned)
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include $(o-iterator)
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define o-iterator-doit
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$(inst_slibdir)/$(o:.so=)-$(version).so: $(objpfx)$o $(+force);
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$(inst_slibdir)/$o$($o-version): $(objpfx)$o $(+force);
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$$(do-install-program)
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endef
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object-suffixes-left := $(versioned)
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8
NEWS
8
NEWS
@ -74,6 +74,14 @@ Deprecated and removed features, and other changes affecting compatibility:
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buggy kernel interfaces (for instance some CIFS version) that could still
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see spurious EINTR error when cancellation interrupts a blocking syscall.
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* Previously, glibc installed its various shared objects under versioned
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file names such as libc-2.33.so. The ABI sonames (e.g., libc.so.6)
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were provided as symbolic links. Starting with glibc 2.34, the shared
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objects are installed under their ABI sonames directly, without
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symbolic links. This increases compatibility with distribution
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package managers that delete removed files late during the package
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upgrade or downgrade process.
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Changes to build and runtime requirements:
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* On Linux, the shm_open, sem_open, and related functions now expect the
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10
elf/Makefile
10
elf/Makefile
@ -630,20 +630,14 @@ $(objpfx)trusted-dirs.st: Makefile $(..)Makeconfig
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CPPFLAGS-dl-load.c += -I$(objpfx). -I$(csu-objpfx).
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ifeq (yes,$(build-shared))
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$(inst_slibdir)/$(rtld-version-installed-name): $(objpfx)ld.so $(+force)
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$(inst_rtlddir)/$(rtld-installed-name): $(objpfx)ld.so $(+force)
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$(make-target-directory)
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$(do-install-program)
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$(inst_rtlddir)/$(rtld-installed-name): \
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$(inst_slibdir)/$(rtld-version-installed-name) \
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$(inst_slibdir)/libc-$(version).so
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$(make-target-directory)
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$(make-shlib-link)
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# Special target called by parent to install just the dynamic linker.
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.PHONY: ldso_install
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ldso_install: $(inst_rtlddir)/$(rtld-installed-name)
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endif
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endif # $(build-shared)
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# Workarounds for ${exec_prefix} expansion in configure variables.
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