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1##===- tools/shlib/Makefile --------------------------------*- Makefile -*-===##
2#
3#                     The LLVM Compiler Infrastructure
4#
5# This file is distributed under the University of Illinois Open Source
6# License. See LICENSE.TXT for details.
7#
8##===----------------------------------------------------------------------===##
9
10LEVEL := ../..
11
12LIBRARYNAME = LLVM-$(LLVMVersion)
13
14NO_BUILD_ARCHIVE := 1
15LINK_LIBS_IN_SHARED := 1
16SHARED_LIBRARY := 1
17
18include $(LEVEL)/Makefile.config
19
20ifeq ($(HOST_OS), $(filter $(HOST_OS), Cygwin MingW))
21  EXPORTED_SYMBOL_FILE = $(ObjDir)/$(LIBRARYNAME).exports
22
23  ifeq (1,$(ENABLE_EMBED_STDCXX))
24    # It is needed to force static-stdc++.a linked.
25    SHLIB_FRAG_NAMES += stdc++.a.o
26  endif
27
28endif
29
30include $(LEVEL)/Makefile.common
31
32# Include all archives in libLLVM.(so|dylib) except the ones that have
33# their own dynamic libraries and TableGen.
34Archives := $(wildcard $(LibDir)/libLLVM*.a)
35SharedLibraries := $(wildcard $(LibDir)/libLLVM*$(SHLIBEXT))
36ExcludeFromLibLlvm := $(basename $(SharedLibraries)).a %/libLLVMTableGen.a
37IncludeInLibLlvm := $(filter-out $(ExcludeFromLibLlvm), $(Archives))
38LLVMLibsOptions := $(IncludeInLibLlvm:$(LibDir)/lib%.a=-l%)
39LLVMLibsPaths   := $(IncludeInLibLlvm)
40
41$(LibName.SO): $(LLVMLibsPaths)
42
43ifeq ($(HOST_OS),Darwin)
44    # set dylib internal version number to llvmCore submission number
45    ifdef LLVM_SUBMIT_VERSION
46        LLVMLibsOptions := $(LLVMLibsOptions) -Wl,-current_version \
47                        -Wl,$(LLVM_SUBMIT_VERSION).$(LLVM_SUBMIT_SUBVERSION) \
48                        -Wl,-compatibility_version -Wl,1
49    endif
50    # Include everything from the .a's into the shared library.
51    LLVMLibsOptions    := $(LLVMLibsOptions) -all_load
52    # extra options to override libtool defaults
53    LLVMLibsOptions    := $(LLVMLibsOptions)  \
54                         -Wl,-dead_strip \
55                         -Wl,-seg1addr -Wl,0xE0000000
56
57    # Mac OS X 10.4 and earlier tools do not allow a second -install_name on command line
58    DARWIN_VERS := $(shell echo $(TARGET_TRIPLE) | sed 's/.*darwin\([0-9]*\).*/\1/')
59    ifneq ($(DARWIN_VERS),8)
60       LLVMLibsOptions    := $(LLVMLibsOptions)  \
61                            -Wl,-install_name \
62                            -Wl,"@executable_path/../lib/lib$(LIBRARYNAME)$(SHLIBEXT)"
63    endif
64endif
65
66ifeq ($(HOST_OS), $(filter $(HOST_OS), Linux FreeBSD OpenBSD GNU))
67    # Include everything from the .a's into the shared library.
68    LLVMLibsOptions := -Wl,--whole-archive $(LLVMLibsOptions) \
69                       -Wl,--no-whole-archive
70    # Add soname to the library.
71    LLVMLibsOptions += -Wl,--soname,lib$(LIBRARYNAME)$(SHLIBEXT)
72endif
73
74ifeq ($(HOST_OS), $(filter $(HOST_OS), Linux GNU))
75    # Don't allow unresolved symbols.
76    LLVMLibsOptions += -Wl,--no-undefined
77endif
78
79ifeq ($(HOST_OS),SunOS)
80    # add -z allextract ahead of other libraries on Solaris
81    LLVMLibsOptions := -Wl,-z -Wl,allextract $(LLVMLibsOptions)
82endif
83
84ifeq ($(HOST_OS), $(filter $(HOST_OS), Cygwin MingW))
85
86SHLIB_STUBS := $(addprefix $(ObjDir)/, $(SHLIB_FRAG_NAMES))
87SHLIB_FRAGS := $(patsubst %.a.o, $(ObjDir)/%.syms.txt, $(LIBRARYNAME).a.o $(SHLIB_FRAG_NAMES))
88LLVMLibsOptions := $(SHLIB_STUBS) $(LLVMLibsOptions)
89
90$(LibName.SO): $(SHLIB_STUBS)
91
92%.syms.txt: %.a.o
93	$(Echo) Collecting global symbols of $(notdir $*)
94	$(Verb) $(NM_PATH) -g $< > $@
95
96$(ObjDir)/$(LIBRARYNAME).exports: $(SHLIB_FRAGS) $(ObjDir)/.dir
97	$(Echo) Generating exports for $(LIBRARYNAME)
98	$(Verb) ($(SED) -n \
99			-e "s/^.* T _\([^.][^.]*\)$$/\1/p" \
100			-e "s/^.* [BDR] _\([^.][^.]*\)$$/\1 DATA/p" \
101			$(SHLIB_FRAGS) \
102		 | sort -u) > $@
103
104$(ObjDir)/$(LIBRARYNAME).a.o: $(LLVMLibsPaths) $(ObjDir)/.dir
105	$(Echo) Linking all LLVMLibs together for $(LIBRARYNAME)
106	$(Verb) $(Link) -nostartfiles -Wl,-r -nodefaultlibs -o $@ \
107			-Wl,--whole-archive $(LLVMLibsPaths) \
108			-Wl,--no-whole-archive
109
110$(ObjDir)/stdc++.a.o: $(ObjDir)/.dir
111	$(Echo) Linking all libs together for static libstdc++.a
112	$(Verb) $(Link) -nostartfiles -Wl,-r -nodefaultlibs -o $@ \
113			-Wl,--whole-archive -lstdc++ \
114			-Wl,--no-whole-archive
115# FIXME: workaround to invalidate -lstdc++
116	$(Echo) Making dummy -lstdc++ to lib
117	$(Verb) $(AR) rc $(ToolDir)/libstdc++.dll.a
118# FIXME: Is install-local needed?
119
120clean-local::
121	$(Verb) $(RM) -f $(ToolDir)/libstdc++.dll.a
122
123endif
124