glibc/glibc-nosymlink-2.patch
Florian Weimer fd5c07ba69 Install shared objects under their ABI names, avoiding symlinks (#1652867)
This adds patches proposed upstream to enable downgrades across
major glibc versions.

File list construction and the find-debuginfo.sh wrapper had
to be adjusted to cope with the changed file name patterns.
2021-06-15 14:26:40 +02:00

79 lines
2.7 KiB
Diff

Patch series proposed upstream:
<https://sourceware.org/pipermail/libc-alpha/2021-June/127473.html>
Author: Florian Weimer <fweimer@redhat.com>
Date: Wed Jun 9 14:12:46 2021 +0200
Makerules: Remove lib-version, $(subdir-version)
Also clarify that the “versioned” term refers to the soname, not the glibc
version (which also ends up in the installed file name).
I verified on x86_64-linux-gnu that “make install” produces the same
files.
diff --git a/Makerules b/Makerules
index ca9885436e15784b..d3f29d0b8991efc7 100644
--- a/Makerules
+++ b/Makerules
@@ -982,22 +982,21 @@ install-lib.so := $(filter %.so,$(install-lib:%_pic.a=%.so))
install-lib := $(filter-out %.so %_pic.a,$(install-lib))
ifeq (yes,$(build-shared))
-# Find which .so's have versions.
+# Find which .so's have a version number in their soname.
versioned := $(strip $(foreach so,$(install-lib.so),\
$(patsubst %,$(so),$($(so)-version))))
install-lib.so-versioned := $(filter $(versioned), $(install-lib.so))
install-lib.so-unversioned := $(filter-out $(versioned), $(install-lib.so))
-# For versioned libraries, we install three files:
+# For libraries whose soname have version numbers, we install three files:
# $(inst_libdir)/libfoo.so -- for linking, symlink or ld script
# $(inst_slibdir)/libfoo.so.NN -- for loading by SONAME, symlink
# $(inst_slibdir)/libfoo-X.Y.Z.so -- the real shared object file
-lib-version := $(firstword $($(subdir)-version) $(version))
install-lib-nosubdir: $(install-lib.so-unversioned:%=$(inst_slibdir)/%) \
$(foreach L,$(install-lib.so-versioned),\
$(inst_libdir)/$L \
- $(inst_slibdir)/$(L:.so=)-$(lib-version).so \
+ $(inst_slibdir)/$(L:.so=)-$(version).so \
$(inst_slibdir)/$L$($L-version))
# Install all the unversioned shared libraries.
@@ -1125,7 +1124,6 @@ include $(o-iterator)
generated += $(foreach o,$(versioned),$o$($o-version))
-ifeq (,$($(subdir)-version))
define o-iterator-doit
$(inst_slibdir)/$o$($o-version): $(inst_slibdir)/$(o:.so=)-$(version).so \
$(+force);
@@ -1140,23 +1138,7 @@ $(inst_slibdir)/$(o:.so=)-$(version).so: $(objpfx)$o $(+force);
endef
object-suffixes-left := $(versioned)
include $(o-iterator)
-else
-define o-iterator-doit
-$(inst_slibdir)/$o$($o-version): \
- $(inst_slibdir)/$(o:.so=)-$($(subdir)-version).so $(+force);
- $$(make-shlib-link)
-endef
-object-suffixes-left := $(versioned)
-include $(o-iterator)
-
-define o-iterator-doit
-$(inst_slibdir)/$(o:.so=)-$($(subdir)-version).so: $(objpfx)$o $(+force);
- $$(do-install-program)
-endef
-object-suffixes-left := $(versioned)
-include $(o-iterator)
-endif
-endif
+endif # ifneq (,$(versioned))
define do-install-so
$(do-install-program)