tools/elfutils: use conditional to block build of shared objects

Add a potentially upstream-friendly conditional
using the libtool configure variable "enable_shared"
in order to block building and installing of shared objects
and adjust the build of static libraries
instead of directly patching lines in or out.

Signed-off-by: Michael Pratt <mcpratt@pm.me>
Link: https://github.com/openwrt/openwrt/pull/15690
Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Michael Pratt 2024-05-17 21:23:33 -04:00 committed by Robert Marko
parent 954179e412
commit 9670a38d08

View File

@ -30,16 +30,19 @@
AC_CACHE_CHECK([whether gcc supports __attribute__((visibility()))],
ac_cv_visibility, [dnl
save_CFLAGS="$CFLAGS"
@@ -415,7 +421,7 @@ AS_HELP_STRING([--enable-install-elfh],[
@@ -415,7 +421,10 @@ AS_HELP_STRING([--enable-install-elfh],[
AM_CONDITIONAL(INSTALL_ELFH, test "$install_elfh" = yes)
AM_CONDITIONAL(BUILD_STATIC, [dnl
-test "$use_gprof" = yes -o "$use_gcov" = yes])
+test "$use_gprof" = yes -o "$use_gcov" = yes -o "$enable_static" = yes])
+
+AM_CONDITIONAL(BUILD_SHARED, [dnl
+test "$enable_shared" = yes])
AC_ARG_ENABLE([tests-rpath],
AS_HELP_STRING([--enable-tests-rpath],[build $ORIGIN-using rpath into tests]),
@@ -635,6 +641,8 @@ AC_COMPILE_IFELSE([AC_LANG_SOURCE([])],
@@ -635,6 +644,8 @@ AC_COMPILE_IFELSE([AC_LANG_SOURCE([])],
CFLAGS="$old_CFLAGS"])
AS_IF([test "x$ac_cv_fno_addrsig" = "xyes"], CFLAGS="$CFLAGS -fno-addrsig")
@ -90,34 +93,31 @@
# define INTDEF(name) _INTDEF(name)
--- a/libelf/Makefile.am
+++ b/libelf/Makefile.am
@@ -35,8 +35,6 @@ endif
@@ -35,8 +35,11 @@ endif
VERSION = 1
lib_LIBRARIES = libelf.a
-noinst_LIBRARIES = libelf_pic.a
-noinst_DATA = $(noinst_LIBRARIES:_pic.a=.so)
+if BUILD_SHARED
noinst_LIBRARIES = libelf_pic.a
noinst_DATA = $(noinst_LIBRARIES:_pic.a=.so)
+endif
+
include_HEADERS = libelf.h gelf.h nlist.h
noinst_HEADERS = abstract.h common.h exttypes.h gelf_xlate.h libelfP.h \
@@ -111,6 +109,8 @@ if USE_LOCKS
libelf_so_LDLIBS += -lpthread
endif
+libelf_a_LIBADD = $(foreach dep,$(libelf_so_DEPS:.so=.a) $(LIBS:.so=.a),$(if $(findstring a,$(suffix $(dep))),$(addprefix $(dir $(dep)),$(shell cat $(basename $(dep)).manifest)),$(dep)))
+
libelf_so_LIBS = libelf_pic.a
libelf.so: $(srcdir)/libelf.map $(libelf_so_LIBS) $(libelf_so_DEPS)
$(AM_V_CCLD)$(LINK) $(dso_LDFLAGS) -o $@ \
@@ -122,11 +122,8 @@ libelf.so: $(srcdir)/libelf.map $(libelf
@@ -122,11 +125,15 @@ libelf.so: $(srcdir)/libelf.map $(libelf
@$(textrel_check)
$(AM_V_at)ln -fs $@ $@.$(VERSION)
-install: install-am libelf.so
+install: install-am
+if BUILD_SHARED
install: install-am libelf.so
$(mkinstalldirs) $(DESTDIR)$(libdir)
- $(INSTALL_PROGRAM) libelf.so $(DESTDIR)$(libdir)/libelf-$(PACKAGE_VERSION).so
- ln -fs libelf-$(PACKAGE_VERSION).so $(DESTDIR)$(libdir)/libelf.so.$(VERSION)
- ln -fs libelf.so.$(VERSION) $(DESTDIR)$(libdir)/libelf.so
$(INSTALL_PROGRAM) libelf.so $(DESTDIR)$(libdir)/libelf-$(PACKAGE_VERSION).so
ln -fs libelf-$(PACKAGE_VERSION).so $(DESTDIR)$(libdir)/libelf.so.$(VERSION)
ln -fs libelf.so.$(VERSION) $(DESTDIR)$(libdir)/libelf.so
+else
+libelf_a_LIBADD = $(foreach dep,$(libelf_so_DEPS:.so=.a) $(LIBS:.so=.a),$(if $(findstring a,$(suffix $(dep))),$(addprefix $(dir $(dep)),$(shell cat $(basename $(dep)).manifest)),$(dep)))
+endif
uninstall: uninstall-am
rm -f $(DESTDIR)$(libdir)/libelf-$(PACKAGE_VERSION).so
@ -265,25 +265,28 @@
--- a/libdw/Makefile.am
+++ b/libdw/Makefile.am
@@ -35,8 +35,6 @@ AM_CPPFLAGS += -I$(srcdir)/../libebl -I$
@@ -35,8 +35,10 @@ AM_CPPFLAGS += -I$(srcdir)/../libebl -I$
VERSION = 1
lib_LIBRARIES = libdw.a
-noinst_LIBRARIES = libdw_pic.a
-noinst_DATA = $(noinst_LIBRARIES:_pic.a=.so)
+if BUILD_SHARED
noinst_LIBRARIES = libdw_pic.a
noinst_DATA = $(noinst_LIBRARIES:_pic.a=.so)
+endif
include_HEADERS = dwarf.h
pkginclude_HEADERS = libdw.h known-dwarf.h
@@ -121,11 +119,8 @@ libdw.so: $(srcdir)/libdw.map $(libdw_so
@@ -121,11 +123,13 @@ libdw.so: $(srcdir)/libdw.map $(libdw_so
@$(textrel_check)
$(AM_V_at)ln -fs $@ $@.$(VERSION)
-install: install-am libdw.so
+install: install-am
+if BUILD_SHARED
install: install-am libdw.so
$(mkinstalldirs) $(DESTDIR)$(libdir)
- $(INSTALL_PROGRAM) libdw.so $(DESTDIR)$(libdir)/libdw-$(PACKAGE_VERSION).so
- ln -fs libdw-$(PACKAGE_VERSION).so $(DESTDIR)$(libdir)/libdw.so.$(VERSION)
- ln -fs libdw.so.$(VERSION) $(DESTDIR)$(libdir)/libdw.so
$(INSTALL_PROGRAM) libdw.so $(DESTDIR)$(libdir)/libdw-$(PACKAGE_VERSION).so
ln -fs libdw-$(PACKAGE_VERSION).so $(DESTDIR)$(libdir)/libdw.so.$(VERSION)
ln -fs libdw.so.$(VERSION) $(DESTDIR)$(libdir)/libdw.so
+endif
uninstall: uninstall-am
rm -f $(DESTDIR)$(libdir)/libdw-$(PACKAGE_VERSION).so
@ -311,7 +314,9 @@
+libcpu_objects = $(shell cat ../libcpu/libcpu.manifest)
libdw_a_LIBADD += $(addprefix ../libcpu/,$(libcpu_objects))
+if !BUILD_SHARED
+libdw_a_LIBADD += $(foreach dep,$(libdw_so_DEPS:.so=.a) $(LIBS:.so=.a),$(if $(findstring a,$(suffix $(dep))),$(addprefix $(dir $(dep)),$(shell cat $(basename $(dep)).manifest)),$(dep)))
+endif
+
noinst_HEADERS = libdwP.h memory-access.h dwarf_abbrev_hash.h \
dwarf_sig8_hash.h cfi.h encoded-value.h
@ -407,34 +412,31 @@
+MOSTLYCLEANFILES = $(EXTRA_libeu_a_DEPENDENCIES)
--- a/libasm/Makefile.am
+++ b/libasm/Makefile.am
@@ -33,8 +33,6 @@ AM_CPPFLAGS += -I$(top_srcdir)/libelf -I
@@ -33,8 +33,11 @@ AM_CPPFLAGS += -I$(top_srcdir)/libelf -I
VERSION = 1
lib_LIBRARIES = libasm.a
-noinst_LIBRARIES = libasm_pic.a
-noinst_DATA = $(noinst_LIBRARIES:_pic.a=.so)
+if BUILD_SHARED
noinst_LIBRARIES = libasm_pic.a
noinst_DATA = $(noinst_LIBRARIES:_pic.a=.so)
+endif
+
pkginclude_HEADERS = libasm.h
libasm_a_SOURCES = asm_begin.c asm_abort.c asm_end.c asm_error.c \
@@ -60,6 +58,8 @@ if USE_LOCKS
libasm_so_LDLIBS += -lpthread
endif
+libasm_a_LIBADD = $(foreach dep,$(libasm_so_DEPS:.so=.a) $(LIBS:.so=.a),$(if $(findstring a,$(suffix $(dep))),$(addprefix $(dir $(dep)),$(shell cat $(basename $(dep)).manifest)),$(dep)))
+
libasm_so_LIBS = libasm_pic.a
libasm.so: $(srcdir)/libasm.map $(libasm_so_LIBS) $(libasm_so_DEPS)
$(AM_V_CCLD)$(LINK) $(dso_LDFLAGS) -o $@ \
@@ -71,11 +71,8 @@ libasm.so: $(srcdir)/libasm.map $(libasm
@@ -71,11 +74,15 @@ libasm.so: $(srcdir)/libasm.map $(libasm
@$(textrel_check)
$(AM_V_at)ln -fs $@ $@.$(VERSION)
-install: install-am libasm.so
+install: install-am
+if BUILD_SHARED
install: install-am libasm.so
$(mkinstalldirs) $(DESTDIR)$(libdir)
- $(INSTALL_PROGRAM) libasm.so $(DESTDIR)$(libdir)/libasm-$(PACKAGE_VERSION).so
- ln -fs libasm-$(PACKAGE_VERSION).so $(DESTDIR)$(libdir)/libasm.so.$(VERSION)
- ln -fs libasm.so.$(VERSION) $(DESTDIR)$(libdir)/libasm.so
$(INSTALL_PROGRAM) libasm.so $(DESTDIR)$(libdir)/libasm-$(PACKAGE_VERSION).so
ln -fs libasm-$(PACKAGE_VERSION).so $(DESTDIR)$(libdir)/libasm.so.$(VERSION)
ln -fs libasm.so.$(VERSION) $(DESTDIR)$(libdir)/libasm.so
+else
+libasm_a_LIBADD = $(foreach dep,$(libasm_so_DEPS:.so=.a) $(LIBS:.so=.a),$(if $(findstring a,$(suffix $(dep))),$(addprefix $(dir $(dep)),$(shell cat $(basename $(dep)).manifest)),$(dep)))
+endif
uninstall: uninstall-am
rm -f $(DESTDIR)$(libdir)/libasm-$(PACKAGE_VERSION).so
@ -451,33 +453,31 @@
CLEANFILES += $(am_libasm_pic_a_OBJECTS) libasm.so libasm.so.$(VERSION)
--- a/debuginfod/Makefile.am
+++ b/debuginfod/Makefile.am
@@ -77,7 +77,6 @@ debuginfod_find_LDADD = $(libdw) $(libel
@@ -77,8 +77,10 @@ debuginfod_find_LDADD = $(libdw) $(libel
if LIBDEBUGINFOD
noinst_LIBRARIES = libdebuginfod.a
-noinst_LIBRARIES += libdebuginfod_pic.a
+if BUILD_SHARED
noinst_LIBRARIES += libdebuginfod_pic.a
endif
+endif
libdebuginfod_a_SOURCES = debuginfod-client.c
@@ -98,6 +97,7 @@ if DUMMY_LIBDEBUGINFOD
libdebuginfod_so_LDLIBS =
else
libdebuginfod_so_LDLIBS = -lpthread $(libcurl_LIBS) $(fts_LIBS) $(libelf)
+libdebuginfod_a_LIBADD = $(foreach dep,$(wildcard $(libdebuginfod_so_LDLIBS:.so=.a)) $(LIBS:.so=.a),$(if $(findstring a,$(suffix $(dep))),$(addprefix $(dir $(dep)),$(shell cat $(basename $(dep)).manifest)),$(dep)))
endif
$(LIBDEBUGINFOD_SONAME): $(srcdir)/libdebuginfod.map $(libdebuginfod_so_LIBS)
$(AM_V_CCLD)$(LINK) $(dso_LDFLAGS) -o $@ \
@@ -111,12 +111,8 @@ $(LIBDEBUGINFOD_SONAME): $(srcdir)/libde
libdebuginfod_pic_a_SOURCES = debuginfod-client.c
@@ -111,12 +113,16 @@ $(LIBDEBUGINFOD_SONAME): $(srcdir)/libde
libdebuginfod.so: $(LIBDEBUGINFOD_SONAME)
ln -fs $< $@
-install: install-am libdebuginfod.so
+install: install-am
+if BUILD_SHARED
install: install-am libdebuginfod.so
$(mkinstalldirs) $(DESTDIR)$(libdir)
- $(INSTALL_PROGRAM) $(LIBDEBUGINFOD_SONAME) \
- $(DESTDIR)$(libdir)/libdebuginfod-$(PACKAGE_VERSION).so
- ln -fs libdebuginfod-$(PACKAGE_VERSION).so $(DESTDIR)$(libdir)/$(LIBDEBUGINFOD_SONAME)
- ln -fs libdebuginfod-$(PACKAGE_VERSION).so $(DESTDIR)$(libdir)/libdebuginfod.so
$(INSTALL_PROGRAM) $(LIBDEBUGINFOD_SONAME) \
$(DESTDIR)$(libdir)/libdebuginfod-$(PACKAGE_VERSION).so
ln -fs libdebuginfod-$(PACKAGE_VERSION).so $(DESTDIR)$(libdir)/$(LIBDEBUGINFOD_SONAME)
ln -fs libdebuginfod-$(PACKAGE_VERSION).so $(DESTDIR)$(libdir)/libdebuginfod.so
+else
+libdebuginfod_a_LIBADD = $(foreach dep,$(wildcard $(libdebuginfod_so_LDLIBS:.so=.a)) $(LIBS:.so=.a),$(if $(findstring a,$(suffix $(dep))),$(addprefix $(dir $(dep)),$(shell cat $(basename $(dep)).manifest)),$(dep)))
+endif
uninstall: uninstall-am
rm -f $(DESTDIR)$(libdir)/libdebuginfod-$(PACKAGE_VERSION).so
@ -516,6 +516,18 @@
run-linkmap-cut.sh run-aggregate-size.sh run-peel-type.sh \
vdsosyms run-readelf-A.sh \
run-getsrc-die.sh run-strptr.sh newdata elfstrtab dwfl-proc-attach \
@@ -284,6 +284,11 @@ funcretval_test__11_SOURCES = funcretval
TESTS += run-funcretval++11.sh
endif
+if BUILD_SHARED
+check_PROGRAMS += deleted deleted-lib.so
+TESTS += run-deleted.sh
+endif
+
EXTRA_DIST = run-arextract.sh run-arsymtest.sh run-ar.sh \
run-ar-N.sh \
run-show-die-info.sh run-get-files.sh run-get-lines.sh \
--- a/config/libelf.pc.in
+++ b/config/libelf.pc.in
@@ -8,7 +8,7 @@ Description: elfutils libelf library to