214 lines
9.4 KiB
Plaintext
214 lines
9.4 KiB
Plaintext
#
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# Copyright (c) 2011, 2024, Oracle and/or its affiliates. All rights reserved.
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# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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#
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# This code is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License version 2 only, as
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# published by the Free Software Foundation. Oracle designates this
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# particular file as subject to the "Classpath" exception as provided
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# by Oracle in the LICENSE file that accompanied this code.
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#
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# This code is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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# version 2 for more details (a copy is included in the LICENSE file that
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# accompanied this code).
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#
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# You should have received a copy of the GNU General Public License version
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# 2 along with this work; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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# or visit www.oracle.com if you need additional information or have any
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# questions.
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#
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################################################################################
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# This file contains functionality related to linking a native binary;
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# creating either a dynamic library, a static library or an executable.
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################################################################################
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# GetEntitlementsFile
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# Find entitlements file for executable when signing on macosx. If no
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# specialized file is found, returns the default file.
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# This macro might be called from custom makefiles.
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# $1 Executable to find entitlements file for.
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ENTITLEMENTS_DIR := $(TOPDIR)/make/data/macosxsigning
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ifeq ($(MACOSX_CODESIGN_MODE), debug)
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CODESIGN_PLIST_SUFFIX := -debug
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else
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CODESIGN_PLIST_SUFFIX :=
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endif
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DEFAULT_ENTITLEMENTS_FILE := $(ENTITLEMENTS_DIR)/default$(CODESIGN_PLIST_SUFFIX).plist
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GetEntitlementsFile = \
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$(foreach f, $(ENTITLEMENTS_DIR)/$(strip $(notdir $1))$(CODESIGN_PLIST_SUFFIX).plist, \
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$(if $(wildcard $f), $f, $(DEFAULT_ENTITLEMENTS_FILE)) \
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)
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################################################################################
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define SetupLinking
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# Unless specifically set, stripping should only happen if symbols are also
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# being copied.
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$$(call SetIfEmpty, $1_STRIP_SYMBOLS, $$($1_COPY_DEBUG_SYMBOLS))
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# Default to using the global STRIPFLAGS. Allow for overriding with an
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# empty value
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$1_STRIPFLAGS ?= $(STRIPFLAGS)
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endef
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################################################################################
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define CreateLinkedResult
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ifeq ($$($1_TYPE), STATIC_LIBRARY)
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$$(eval $$(call CreateStaticLibrary,$1))
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else
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$$(eval $$(call CreateDynamicLibraryOrExecutable,$1))
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endif
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endef
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################################################################################
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define CreateStaticLibrary
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# Include partial linking when building the static library with clang on linux
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ifeq ($(call isTargetOs, linux), true)
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ifneq ($(findstring $(TOOLCHAIN_TYPE), clang), )
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$1_ENABLE_PARTIAL_LINKING := true
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endif
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endif
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$1_VARDEPS := $$($1_AR) $$(ARFLAGS) $$($1_LIBS) \
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$$($1_EXTRA_LIBS)
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ifeq ($$($1_ENABLE_PARTIAL_LINKING), true)
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$1_VARDEPS += $$($1_LD) $$($1_SYSROOT_LDFLAGS)
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endif
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$1_VARDEPS_FILE := $$(call DependOnVariable, $1_VARDEPS, \
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$$($1_OBJECT_DIR)/$$($1_NOSUFFIX).vardeps)
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$1_TARGET_DEPS := $$($1_ALL_OBJS) $$($1_EXTRA_LINK_DEPS) $$($1_VARDEPS_FILE)
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$1_AR_OBJ_ARG := $$($1_LD_OBJ_ARG)
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# With clang on linux, partial linking is enabled and 'AR' takes the output
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# object from the partial linking step.
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ifeq ($$($1_ENABLE_PARTIAL_LINKING), true)
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$1_TARGET_RELOCATABLE := $$($1_OBJECT_DIR)/$$($1_PREFIX)$$($1_NAME)_relocatable$(OBJ_SUFFIX)
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$1_AR_OBJ_ARG := $$($1_TARGET_RELOCATABLE)
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endif
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$$($1_TARGET): $$($1_TARGET_DEPS)
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ifneq ($$($1_OBJ_FILE_LIST), )
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ifeq ($$($1_LINK_OBJS_RELATIVE), true)
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$$(eval $$(call ListPathsSafely, $1_ALL_OBJS_RELATIVE, $$($1_OBJ_FILE_LIST)))
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else
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$$(eval $$(call ListPathsSafely, $1_ALL_OBJS, $$($1_OBJ_FILE_LIST)))
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endif
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endif
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$$(call LogInfo, Building static library $$($1_BASENAME))
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$$(call MakeDir, $$($1_OUTPUT_DIR) $$($1_SYMBOLS_DIR))
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# Do partial linking.
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ifeq ($$($1_ENABLE_PARTIAL_LINKING), true)
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$$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_partial_link, \
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$(if $$($1_LINK_OBJS_RELATIVE), $$(CD) $$(OUTPUTDIR) ; ) \
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$$($1_LD) $(LDFLAGS_CXX_PARTIAL_LINKING) $$($1_SYSROOT_LDFLAGS) \
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-o $$($1_TARGET_RELOCATABLE) $$($1_LD_OBJ_ARG))
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# 'ld -r' might invalidate the .llvm_addrsig section, and this will cause subsequent
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# calls to lld (with '-Wl,--icf=safe') to fail when linking with this library, so
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# remove that section.
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$$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_objcopy_remove_llvm_addrsig_section, \
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$$($1_OBJCOPY) --remove-section=.llvm_addrsig $$($1_TARGET_RELOCATABLE))
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endif
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$$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_run_ar, \
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$(if $$($1_LINK_OBJS_RELATIVE), $$(CD) $$(OUTPUTDIR) ; ) \
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$$($1_AR) $$(ARFLAGS) -r -cs $$($1_TARGET) \
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$$($1_AR_OBJ_ARG) $$($1_RES))
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endef
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################################################################################
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define CreateDynamicLibraryOrExecutable
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# A shared dynamic library or an executable binary has been specified
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ifeq ($$($1_TYPE), LIBRARY)
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# Generating a dynamic library.
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$1_EXTRA_LDFLAGS += $$(call SET_SHARED_LIBRARY_NAME,$$($1_BASENAME))
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endif
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ifeq ($(MACOSX_CODESIGN_MODE), hardened)
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$1_CODESIGN_OPTS := "$(MACOSX_CODESIGN_IDENTITY)" --timestamp \
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--options runtime
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else ifeq ($(MACOSX_CODESIGN_MODE), debug)
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$1_CODESIGN_OPTS := -
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endif
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$1_VARDEPS := $$($1_LD) $$($1_SYSROOT_LDFLAGS) $$($1_LDFLAGS) \
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$$($1_EXTRA_LDFLAGS) $$($1_LIBS) $$($1_EXTRA_LIBS) \
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$$($1_DEBUGINFO_FILES) $$($1_STRIPFLAGS)
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$1_VARDEPS_FILE := $$(call DependOnVariable, $1_VARDEPS, \
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$$($1_OBJECT_DIR)/$$($1_NOSUFFIX).vardeps)
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$1_TARGET_DEPS := $$($1_ALL_OBJS) $$($1_EXTRA_LINK_DEPS) $$($1_VARDEPS_FILE)
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$$($1_TARGET): $$($1_TARGET_DEPS)
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ifneq ($$($1_OBJ_FILE_LIST), )
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ifeq ($$($1_LINK_OBJS_RELATIVE), true)
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$$(eval $$(call ListPathsSafely, $1_ALL_OBJS_RELATIVE, $$($1_OBJ_FILE_LIST)))
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else
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$$(eval $$(call ListPathsSafely, $1_ALL_OBJS, $$($1_OBJ_FILE_LIST)))
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endif
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endif
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$$(call LogInfo, Linking $$($1_BASENAME))
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$$(call MakeDir, $$($1_OUTPUT_DIR) $$($1_SYMBOLS_DIR))
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$$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_run_ld, \
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$$(if $$($1_LINK_OBJS_RELATIVE), $$(CD) $$(OUTPUTDIR) ; ) \
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$$($1_LD) $$($1_LDFLAGS) $$($1_EXTRA_LDFLAGS) \
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$$($1_SYSROOT_LDFLAGS) -o $$($1_TARGET) $$($1_LD_OBJ_ARG) \
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$$($1_LIBS) $$($1_EXTRA_LIBS))
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ifeq ($$($1_CREATE_DEBUGINFO), true)
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ifeq ($(call isTargetOs, linux), true)
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# This cannot be run separately since it updates the original target
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# file.
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$$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_create_debuginfo, \
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$$($1_OBJCOPY) --only-keep-debug $$($1_TARGET) $$($1_DEBUGINFO_FILES))
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$$(CHMOD) -x $$($1_DEBUGINFO_FILES)
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else ifeq ($(call isTargetOs, aix), true)
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# AIX does not provide the equivalent of objcopy to extract debug
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# symbols, so we copy unstripped library instead.
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$$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_create_debuginfo, \
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$(CP) $$($1_TARGET) $$($1_DEBUGINFO_FILES))
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else ifeq ($(call isTargetOs, macosx), true)
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$$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_create_debuginfo, \
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$(DSYMUTIL) --out $$($1_SYMBOLS_DIR)/$$($1_BASENAME).dSYM $$($1_TARGET))
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endif
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endif
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ifneq ($$($1_STRIP_SYMBOLS), false)
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$$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_strip, \
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$$($1_STRIP) $$($1_STRIPFLAGS) $$($1_TARGET))
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endif
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ifeq ($$($1_CREATE_DEBUGINFO), true)
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ifeq ($(call isTargetOs, linux), true)
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# Run this after strip is called, since strip can sometimes mangle
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# the embedded debuglink, which we want to avoid.
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$$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_add_debuginfo_link, \
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$(CD) $$($1_SYMBOLS_DIR) && \
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$$($1_OBJCOPY) --add-gnu-debuglink=$$($1_DEBUGINFO_FILES) $$($1_TARGET))
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endif
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endif
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ifneq ($(MACOSX_CODESIGN_MODE), disabled)
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# Remove signature explicitly first to avoid warnings if the linker
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# added a default adhoc signature.
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$$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_codesign_clear, \
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$(CODESIGN) --remove-signature $$@)
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$$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_codesign_add, \
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$(CODESIGN) -f -s $$($1_CODESIGN_OPTS) --entitlements \
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$$(call GetEntitlementsFile, $$@) $$@)
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endif
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# This is for IDE integration purposes only, and is not normally generated
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$1_LDFLAGS_FILE := $$(MAKESUPPORT_OUTPUTDIR)/compile-commands/$$($1_UNIQUE_NAME)-ldflags.txt
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$1_ALL_LD_ARGS := $$($1_LDFLAGS) $$($1_EXTRA_LDFLAGS) $$($1_SYSROOT_LDFLAGS) \
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$$($1_LIBS) $$($1_EXTRA_LIBS)
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$$($1_LDFLAGS_FILE): $$($1_VARDEPS_FILE)
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$$(call LogInfo, Creating compile commands linker flags output for $$($1_BASENAME))
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$$(call MakeDir, $$(dir $$@))
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$$(ECHO) $$($1_ALL_LD_ARGS) > $$@
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endef
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