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Disallow undefined symbols in dynamic libraries by default

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This encourages that each library declares its own dependencies
properly.
This commit is contained in:
Eelco Dolstra 2013-11-24 00:10:00 +01:00
parent 5a1114ecdb
commit c1f3a1a89b
2 changed files with 12 additions and 4 deletions
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14
Makefile.lib
View file

@ -27,6 +27,7 @@ QUIET = @
ifeq ($(BUILD_SHARED_LIBS), 1) ifeq ($(BUILD_SHARED_LIBS), 1)
GLOBAL_CFLAGS += -fPIC GLOBAL_CFLAGS += -fPIC
GLOBAL_CXXFLAGS += -fPIC GLOBAL_CXXFLAGS += -fPIC
GLOBAL_LDFLAGS += -Wl,--no-copy-dt-needed-entries
endif endif
@ -60,9 +61,13 @@ define LIBS_template =
ifeq ($(BUILD_SHARED_LIBS), 1) ifeq ($(BUILD_SHARED_LIBS), 1)
ifndef $(1)_ALLOW_UNDEFINED
$(1)_LDFLAGS += -z defs
endif
_lib := $$(_d)/$(1).so _lib := $$(_d)/$(1).so
$$(_lib): $$($(1)_OBJS) $$(_libs) $$(_lib): $$($(1)_OBJS) $$(_libs)
$(QUIET) $(CC) -o $$@ -shared -Wl,--no-copy-dt-needed-entries $$($(1)_OBJS) $$($(1)_LDFLAGS) $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_LDFLAGS_USE)) $(QUIET) $(CXX) -o $$@ -shared $(GLOBAL_LDFLAGS) $$($(1)_OBJS) $$($(1)_LDFLAGS) $$($(1)_LDFLAGS_PROPAGATED) $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_LDFLAGS_USE))
$(1)_LDFLAGS_USE += -L$$(_d) -Wl,-rpath,$$(abspath $$(_d)) -l$$(patsubst lib%,%,$$(strip $(1))) $(1)_LDFLAGS_USE += -L$$(_d) -Wl,-rpath,$$(abspath $$(_d)) -l$$(patsubst lib%,%,$$(strip $(1)))
@ -74,7 +79,7 @@ define LIBS_template =
$$($(1)_INSTALL_PATH): $$($(1)_OBJS) $$(_libs_final) $$($(1)_INSTALL_PATH): $$($(1)_OBJS) $$(_libs_final)
install -d $$($(1)_INSTALL_DIR) install -d $$($(1)_INSTALL_DIR)
$(QUIET) $(CC) -o $$@ -shared -Wl,--no-copy-dt-needed-entries $$($(1)_OBJS) $$($(1)_LDFLAGS) $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_LDFLAGS_USE_INSTALLED)) $(QUIET) $(CXX) -o $$@ -shared $(GLOBAL_LDFLAGS) $$($(1)_OBJS) $$($(1)_LDFLAGS) $$($(1)_LDFLAGS_PROPAGATED) $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_LDFLAGS_USE_INSTALLED))
$(1)_LDFLAGS_USE_INSTALLED += -L$$($(1)_INSTALL_DIR) -Wl,-rpath,$$($(1)_INSTALL_DIR) -l$$(patsubst lib%,%,$$(strip $(1))) $(1)_LDFLAGS_USE_INSTALLED += -L$$($(1)_INSTALL_DIR) -Wl,-rpath,$$($(1)_INSTALL_DIR) -l$$(patsubst lib%,%,$$(strip $(1)))
@ -92,6 +97,7 @@ define LIBS_template =
$(1)_LDFLAGS_USE += $$($(1)_LDFLAGS_PROPAGATED) $(1)_LDFLAGS_USE += $$($(1)_LDFLAGS_PROPAGATED)
$(1)_LDFLAGS_USE_INSTALLED += $$($(1)_LDFLAGS_PROPAGATED) $(1)_LDFLAGS_USE_INSTALLED += $$($(1)_LDFLAGS_PROPAGATED)
$(1)_NAME := $$(_lib) $(1)_NAME := $$(_lib)
# Propagate CXXFLAGS to the individual object files. # Propagate CXXFLAGS to the individual object files.
@ -118,7 +124,7 @@ define PROGRAMS_template =
$(1)_PATH := $$(_d)/$(1) $(1)_PATH := $$(_d)/$(1)
$$($(1)_PATH): $$($(1)_OBJS) $$(_libs) $$($(1)_PATH): $$($(1)_OBJS) $$(_libs)
$(QUIET) $(CXX) -o $$@ -Wl,--no-copy-dt-needed-entries $$($(1)_OBJS) $$($(1)_LDFLAGS) $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_LDFLAGS_USE)) $(QUIET) $(CXX) -o $$@ $(GLOBAL_LDFLAGS) $$($(1)_OBJS) $$($(1)_LDFLAGS) $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_LDFLAGS_USE))
$(1)_INSTALL_PATH := $$(bindir)/$(1) $(1)_INSTALL_PATH := $$(bindir)/$(1)
@ -130,7 +136,7 @@ define PROGRAMS_template =
$$($(1)_INSTALL_PATH): $$($(1)_OBJS) $$(_libs_final) $$($(1)_INSTALL_PATH): $$($(1)_OBJS) $$(_libs_final)
install -d $$(dir $$($(1)_INSTALL_PATH)) install -d $$(dir $$($(1)_INSTALL_PATH))
$(QUIET) $(CXX) -o $$($(1)_INSTALL_PATH) -Wl,--no-copy-dt-needed-entries $$($(1)_OBJS) $$($(1)_LDFLAGS) $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_LDFLAGS_USE_INSTALLED)) $(QUIET) $(CXX) -o $$($(1)_INSTALL_PATH) $(GLOBAL_LDFLAGS) $$($(1)_OBJS) $$($(1)_LDFLAGS) $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_LDFLAGS_USE_INSTALLED))
else else

2
src/libmain/Makefile.new
View file

@ -5,3 +5,5 @@ libmain_DIR := $(d)
libmain_SOURCES = shared.cc stack.cc libmain_SOURCES = shared.cc stack.cc
libmain_LIBS = libstore libutil libformat libmain_LIBS = libstore libutil libformat
libmain_ALLOW_UNDEFINED = 1