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246 lines
8.9 KiB
Makefile
246 lines
8.9 KiB
Makefile
#
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# ***** BEGIN LICENSE BLOCK *****
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# Version: MPL 1.1/GPL 2.0/LGPL 2.1
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#
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# The contents of this file are subject to the Mozilla Public License Version
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# 1.1 (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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# http://www.mozilla.org/MPL/
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#
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# Software distributed under the License is distributed on an "AS IS" basis,
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# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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# for the specific language governing rights and limitations under the
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# License.
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#
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# The Original Code is mozilla.org code.
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#
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# The Initial Developer of the Original Code is
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# Mozilla Foundation
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# Portions created by the Initial Developer are Copyright (C) 2008
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# the Initial Developer. All Rights Reserved.
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#
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# Contributor(s):
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# Ted Mielczarek <ted.mielczarek@gmail.com>
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#
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# Alternatively, the contents of this file may be used under the terms of
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# either of the GNU General Public License Version 2 or later (the "GPL"),
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# or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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# in which case the provisions of the GPL or the LGPL are applicable instead
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# of those above. If you wish to allow use of your version of this file only
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# under the terms of either the GPL or the LGPL, and not to allow others to
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# use your version of this file under the terms of the MPL, indicate your
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# decision by deleting the provisions above and replace them with the notice
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# and other provisions required by the GPL or the LGPL. If you do not delete
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# the provisions above, a recipient may use your version of this file under
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# the terms of any one of the MPL, the GPL or the LGPL.
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#
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# ***** END LICENSE BLOCK *****
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DEPTH = ../..
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topsrcdir = @top_srcdir@
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srcdir = @srcdir@
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VPATH = @srcdir@
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include $(DEPTH)/config/autoconf.mk
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MODULE = jemalloc
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# jemalloc.c properly uses 'static', so don't burden it with manually exposing
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# symbols.
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VISIBILITY_FLAGS=
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ifeq (WINNT,$(OS_TARGET))
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ifdef WIN32_OLD_STYLE_JEMALLOC
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# Building the CRT from source
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CRT_OBJ_DIR = $(CURDIR)/crtsrc
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MOZ_CRT_DLL_NAME = mozcrt19
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MOZ_CRTCPP_DLL_NAME = mozcpp19
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MOZ_CRT_STATIC_LIBS = libcmt libcpmt
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MOZ_CRT_DLL = $(CRT_OBJ_DIR)/build/$(MOZ_CRT_CPU_ARCH)/$(MOZ_CRT_DLL_NAME).dll
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MOZ_CRT_IMPORT_LIB = $(CRT_OBJ_DIR)/build/$(MOZ_CRT_CPU_ARCH)/$(MOZ_CRT_DLL_NAME).lib
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MOZ_CRTCPP_DLL = $(CRT_OBJ_DIR)/build/$(MOZ_CRT_CPU_ARCH)/$(MOZ_CRTCPP_DLL_NAME).dll
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MOZ_CRTCPP_IMPORT_LIB = $(CRT_OBJ_DIR)/build/$(MOZ_CRT_CPU_ARCH)/$(MOZ_CRTCPP_DLL_NAME).lib
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# copy the CRT DLLs to dist/bin,
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# copy the import libs to dist/lib
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libs:: $(MOZ_CRT_DLL) $(MOZ_CRT_IMPORT_LIB)
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$(INSTALL) $(MOZ_CRT_DLL) $(MOZ_CRTCPP_DLL) $(FINAL_TARGET)
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$(INSTALL) $(MOZ_CRT_IMPORT_LIB) $(MOZ_CRTCPP_IMPORT_LIB) $(DIST)/lib
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$(MOZ_CRT_IMPORT_LIB): $(MOZ_CRT_DLL)
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define EXTRACT_CMD
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cd $(CRT_OBJ_DIR)/$(MOZ_CRT_CPU_ARCH)/$(i)_lib && lib "-extract:..\\build\\$(MOZ_CRT_CPU_ARCH)\\$(i)_obj\\unhandld.obj" eh.lib
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endef # don't touch the blank line. actually, don't touch anything in this file.
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# patch if necessary
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ifeq ($(CC_VERSION), 14.00.50727.762)
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CRTDIFF=crtvc8sp1-$(MOZ_CRT_CPU_ARCH).diff
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else
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CRTDIFF=crtvc9sp1-$(MOZ_CRT_CPU_ARCH).diff
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endif
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$(CRT_OBJ_DIR)/jemalloc.c: $(srcdir)/$(CRTDIFF)
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rm -rf $(CRT_OBJ_DIR)
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cp -R "$(WIN32_CRT_SRC_DIR)" $(CRT_OBJ_DIR)
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# per http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=1189363&SiteID=1
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$(foreach i,dll mt xdll xmt,$(EXTRACT_CMD))
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# truly awful
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#XXX: get ed into mozillabuild, bug 415123
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$(PERL) $(srcdir)/apply-ed-patches.pl $(srcdir)/$(CRTDIFF) \
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$(CRT_OBJ_DIR) $(srcdir)/ed.exe
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$(MOZ_CRT_DLL): \
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$(CRT_OBJ_DIR)/jemalloc.c $(srcdir)/jemalloc.c $(srcdir)/jemalloc.h \
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$(srcdir)/jemalloc_types.h $(srcdir)/rb.h
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cp $(srcdir)/jemalloc.c $(srcdir)/jemalloc.h $(srcdir)/jemalloc_types.h $(srcdir)/rb.h \
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$(CRT_OBJ_DIR)
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# this pretty much sucks, but nmake and make don't play well together
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$(PYTHON) $(srcdir)/build-crt.py $(CRT_OBJ_DIR)
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# XXX: these don't link right for some reason; the problem is likely
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# that not all the standard symbols are exported; looks like MSFT
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# never updated the sample.def files; could probably fix if someone
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# were ever bored enough. :-)
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rm -f $(addsuffix .lib, $(addprefix $(CRT_OBJ_DIR)/build/$(MOZ_CRT_CPU_ARCH)/, $(MOZ_CRT_STATIC_LIBS)))
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rm -f $(addsuffix .pdb, $(addprefix $(CRT_OBJ_DIR)/build/$(MOZ_CRT_CPU_ARCH)/, $(MOZ_CRT_STATIC_LIBS)))
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# but still export jemalloc.h
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EXPORTS = jemalloc.h jemalloc_types.h
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else
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CSRCS = jemalloc.c
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EXPORTS = jemalloc.h jemalloc_types.h
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LIBRARY_NAME = jemalloc
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FORCE_SHARED_LIB = 1
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MOZ_MEMORY_LDFLAGS = # Don't link against ourselves
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DEFFILE = $(srcdir)/jemalloc.def
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LDFLAGS += -ENTRY:DllMain
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NO_INSTALL_IMPORT_LIBRARY = 1
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endif
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else # Not Windows
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ifeq ($(OS_ARCH),SunOS)
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ifndef GNU_CC
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MODULE_OPTIMIZE_FLAGS = -xO5
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endif
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endif
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LIBRARY_NAME = jemalloc
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# Build jemalloc as a shared lib. This is mandatory for Darwin, since a library
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# init function is used on that platform.
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ifeq ($(OS_ARCH),Darwin)
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FORCE_SHARED_LIB= 1
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else
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DIST_INSTALL = 1
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FORCE_STATIC_LIB= 1
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endif
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EXPORTS = jemalloc.h jemalloc_types.h
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CSRCS = jemalloc.c
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#XXX: PGO on Linux causes problems here
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# See bug 419470
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NO_PROFILE_GUIDED_OPTIMIZE = 1
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endif
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ifdef WRAP_MALLOC_CFLAGS
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DEFINES += -DWRAP_MALLOC
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endif
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include $(topsrcdir)/config/rules.mk
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ifeq (Darwin,$(OS_TARGET))
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LDFLAGS += -init _jemalloc_darwin_init
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endif
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ifeq (WINNT,$(OS_TARGET))
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ifndef WIN32_OLD_STYLE_JEMALLOC
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# Roll our own custom logic here for the import library
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###############################################################################
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#
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# Linking Mozilla itself to jemalloc is not particularly difficult. To do this
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# we avoid linking directly to the Microsoft-provided CRT import libraries.
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# Instead, we link to our own import library which we generate here. To
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# replace the CRT's malloc/free/other memory management symbols we export
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# our own versions out of jemalloc.dll. We then take the import library that
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# the compiler generates for jemalloc.dll and combine it with the MS CRT import
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# libraries. We put our library on the command line first, and the CRT symbols
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# are discarded in favor of our versions!
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#
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# Unfortunately that was too easy. The CRT import library is not a standard
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# import library that contains a list of symbols and whatnot. It also includes
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# object files that are linked into generated programs. One of these,
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# crtdll.obj is (as one might expect) linked into all DLLs that link against
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# the CRT. This file does things like run static C++ constructors when the
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# DLL is attached, call DllMain, etc.
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#
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# In the CRT source all malloc/free calls are made to malloc_crt and free_crt.
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# In debug builds these are both defined to malloc_dbg and free_dbg. In opt
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# builds malloc_crt is an actual function, implemented and exposed from the
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# CRT. free_crt is, however, defined to be just plain old free. This works
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# fine inside the CRT where malloc_crt and free operate on the same heap.
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# Outside the CRT malloc_crt is in the CRT's heap, but free is in jemalloc's
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# heap. This causes much pain at shutdown :-(
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#
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# The obvious solution here is to override malloc_crt too. Unfortunately,
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# that doesn't work because the CRT expects to be able to call msize on this
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# piece of memory deep inside the CRT, which will fail because it'll call the
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# CRT's msize on a pointer in jemalloc's heap.
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#
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# Our solution to this is quite devious. We take apart the CRT's import lib
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# and remove the problematic object file. We then poke at the object file's
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# symbol table and replace '__imp__free' (which means grab free from some
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# other DLL) with '__imp__frex'. Then we define our own dummy no-op function
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# in jemalloc.dll and export it as frex. Then we put the CRT import lib
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# back together with the patched crtdll.obj, glue it to the end of jemalloc's
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# import library and link the rest of Mozilla to that.
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#
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# The result? A binary that uses jemalloc, doesn't crash, and leaks a tiny
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# amount of memory (32 words per DLL in the 2010 CRT) at shutdown.
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#
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###############################################################################
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libs:: mozcrt.lib
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$(INSTALL) $(IFLAGS2) mozcrt.lib $(DIST)/lib
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# And finally combine that with the jemalloc import library to get an import
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# library that has our malloc/free/etc and the CRT's everything else
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mozcrt.lib: $(IMPORT_LIBRARY) msvc_modified.lib
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lib -OUT:$@ $^
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# Put the fixed object file back in
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msvc_modified.lib: msvc_removed.lib crtdll_fixed.obj
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lib -OUT:$@ $^
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# Fix the object file
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crtdll_fixed.obj: crtdll.obj
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$(PYTHON) $(srcdir)/fixcrt.py
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# Find the path of crtdll.obj
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CRTDLL_FULLPATH=$(subst \,\\,$(shell lib -list msvc_combined.lib | grep crtdll\\.obj))
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# Remove the broken object file, only after we have extracted it
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msvc_removed.lib: msvc_combined.lib crtdll.obj
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lib -OUT:$@ msvc_combined.lib -REMOVE:$(CRTDLL_FULLPATH)
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# Extract the broken object file out of the combined library
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crtdll.obj: msvc_combined.lib
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lib -OUT:$@ $^ -EXTRACT:$(CRTDLL_FULLPATH)
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# Grab both CRT libraries and combine them into one library to simplify things
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msvc_combined.lib:
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lib -OUT:$@ $(WIN32_CRT_LIBS)
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endif
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endif
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