native_client_sdk/src/tools/host_gcc.mk

   1 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 # Use of this source code is governed by a BSD-style license that can be
   3 # found in the LICENSE file.
   4
   5 #
   6 # GNU Make based build file.  For details on GNU Make see:
   7 #   http://www.gnu.org/software/make/manual/make.html
   8 #
   9
  10 ifdef ASAN
  11 CLANG = 1
  12 endif
  13
  14 ifdef TSAN
  15 CLANG = 1
  16 endif
  17
  18 #
  19 # Macros for TOOLS
  20 #
  21 # We use the C++ compiler for everything and then use the -Wl,-as-needed flag
  22 # in the linker to drop libc++ unless it's actually needed.
  23 #
  24 ifdef CLANG
  25 CC = clang
  26 CXX = clang++
  27 endif
  28
  29 ifdef NACL_COMPILER_PREFIX
  30 CC = $(NACL_COMPILER_PREFIX) $(CC)
  31 CXX = $(NACL_COMPILER_PREFIX) $(CXX)
  32 endif
  33
  34 LINK ?= $(CXX)
  35 AR ?= ar
  36 ARFLAGS = -crs
  37 STRIP ?= strip
  38
  39 ifeq (,$(findstring gcc,$(shell $(WHICH) gcc)))
  40 $(warning To skip the host build use:)
  41 $(warning "make all_versions NO_HOST_BUILDS=1")
  42 $(error Unable to find gcc in PATH while building Host build)
  43 endif
  44
  45 HOST_WARNINGS ?= -Wno-long-long -Wall -Werror
  46 HOST_CFLAGS = -fPIC -pthread $(HOST_WARNINGS) -I$(NACL_SDK_ROOT)/include
  47
  48 ifneq ($(OSNAME),mac)
  49 # Adding -Wl,-Bsymbolic means that symbols defined within the module are always
  50 # used by the module, and not shadowed by symbols already loaded in, for
  51 # exmaple, libc.  Without this the libc symbols (or anything injected with
  52 # LD_PRELOAD will take precedence).
  53 # -pthread is not needed on mac (libpthread is a symlink to libSystem) and
  54 # in fact generated a warning if passed at link time.
  55 HOST_LDFLAGS ?= -Wl,-Map,$(OUTDIR)/$(TARGET).map -Wl,-Bsymbolic -pthread
  56 HOST_CFLAGS += -I$(NACL_SDK_ROOT)/include/mac
  57 else
  58 HOST_LDFLAGS ?= -Wl,-map -Wl,$(OUTDIR)/$(TARGET).map
  59 HOST_CFLAGS += -I$(NACL_SDK_ROOT)/include/linux
  60 endif
  61
  62 ifdef ASAN
  63 HOST_CFLAGS += -fsanitize=address
  64 HOST_LDFLAGS += -pie -fsanitize=address
  65 endif
  66
  67 ifdef TSAN
  68 HOST_CFLAGS += -fsanitize=thread
  69 HOST_LDFLAGS += -pie -fsanitize=thread
  70 endif
  71
  72 #
  73 # Individual Macros
  74 #
  75 # $1 = Source name
  76 # $2 = Compile flags
  77 #
  78 define C_COMPILER_RULE
  79 -include $(call SRC_TO_DEP,$(1))
  80 $(call SRC_TO_OBJ,$(1)): $(1) $(TOP_MAKE) | $(dir $(call SRC_TO_OBJ,$(1)))dir.stamp
  81         $(call LOG,CC  ,$$@,$(CC) -o $$@ -c $$< $(POSIX_CFLAGS) $(HOST_CFLAGS) $(CFLAGS) $(2))
  82         @$(FIXDEPS) $(call SRC_TO_DEP_PRE_FIXUP,$(1))
  83 endef
  84
  85 define CXX_COMPILER_RULE
  86 -include $(call SRC_TO_DEP,$(1))
  87 $(call SRC_TO_OBJ,$(1)): $(1) $(TOP_MAKE) | $(dir $(call SRC_TO_OBJ,$(1)))dir.stamp
  88         $(call LOG,CXX ,$$@,$(CXX) -o $$@ -c $$< $(POSIX_CFLAGS) $(HOST_CFLAGS) $(CXXFLAGS) $(2))
  89         @$(FIXDEPS) $(call SRC_TO_DEP_PRE_FIXUP,$(1))
  90 endef
  91
  92 #
  93 # Compile Macro
  94 #
  95 # $1 = Source name
  96 # $2 = POSIX compiler flags
  97 # $3 = VC compiler flags (unused)
  98 #
  99 define COMPILE_RULE
 100 ifeq ($(suffix $(1)),.c)
 101 $(call C_COMPILER_RULE,$(1),$(2) $(foreach inc,$(INC_PATHS),-I$(inc)))
 102 else
 103 $(call CXX_COMPILER_RULE,$(1),$(2) $(foreach inc,$(INC_PATHS),-I$(inc)))
 104 endif
 105 endef
 106
 107
 108 #
 109 # SO Macro
 110 #
 111 # $1 = Target name
 112 # $2 = list of source files
 113 #
 114 define SO_RULE
 115 $(error 'Shared libraries not supported by Host')
 116 endef
 117
 118
 119 #
 120 # LIB Macro
 121 #
 122 # $1 = Target name
 123 # $2 = List of source files
 124 #
 125 define LIB_RULE
 126 $(STAMPDIR)/$(1).stamp: $(LIBDIR)/$(OSNAME)_host/$(CONFIG_DIR)/lib$(1).a
 127         @echo "TOUCHED $$@" > $(STAMPDIR)/$(1).stamp
 128
 129 all: $(LIBDIR)/$(OSNAME)_host/$(CONFIG_DIR)/lib$(1).a
 130 $(LIBDIR)/$(OSNAME)_host/$(CONFIG_DIR)/lib$(1).a: $(foreach src,$(2),$(call SRC_TO_OBJ,$(src)))
 131         $(MKDIR) -p $$(dir $$@)
 132         $(RM) -f $$@
 133         $(call LOG,LIB,$$@,$(AR) $(ARFLAGS) $$@ $$^)
 134 endef
 135
 136
 137 #
 138 # Link Macro
 139 #
 140 # $1 = Target name
 141 # $2 = List of inputs
 142 # $3 = List of libs
 143 # $4 = List of deps
 144 # $5 = List of lib dirs
 145 # $6 = Linker flags
 146 #
 147 ifdef STANDALONE
 148 define LINKER_RULE
 149 all: $(1)
 150 $(1): $(2) $(foreach dep,$(4),$(STAMPDIR)/$(dep).stamp)
 151         $(call LOG,LINK,$$@,$(LINK) -o $(1) $(2) $(HOST_LDFLAGS) $(LDFLAGS) $(foreach path,$(5),-L$(path)/$(OSNAME)_host/$(CONFIG_DIR) -L$(path)/$(OSNAME)_host/$(CONFIG)) $(foreach lib,$(3),-l$(lib)) $(6))
 152 endef
 153 else
 154 define LINKER_RULE
 155 all: $(1)
 156 $(1): $(2) $(foreach dep,$(4),$(STAMPDIR)/$(dep).stamp)
 157         $(call LOG,LINK,$$@,$(LINK) -shared -o $(1) $(2) $(HOST_LDFLAGS) $(LDFLAGS) $(foreach path,$(5),-L$(path)/$(OSNAME)_host/$(CONFIG_DIR) -L$(path)/$(OSNAME)_host/$(CONFIG)) $(foreach lib,$(3),-l$(lib)) $(6))
 158 endef
 159 endif
 160
 161
 162 #
 163 # Link Macro
 164 #
 165 # $1 = Target Name
 166 # $2 = List of source files
 167 # $3 = List of LIBS
 168 # $4 = List of DEPS
 169 # $5 = POSIX linker flags
 170 # $6 = VC linker flags
 171 #
 172 define LINK_RULE
 173 $(call LINKER_RULE,$(OUTDIR)/$(1)$(HOST_EXT),$(foreach src,$(2),$(call SRC_TO_OBJ,$(src))),$(filter-out pthread,$(3)),$(4),$(LIB_PATHS),$(5))
 174 endef
 175
 176 all: $(LIB_LIST) $(DEPS_LIST)
 177
 178
 179 #
 180 # Strip Macro
 181 # The host build makes shared libraries, so the best we can do is -S, which
 182 # only strip debug symbols.  We don't strip the symbol names.
 183 #
 184 # $1 = Target name
 185 # $2 = Input name
 186 #
 187 define STRIP_RULE
 188 all: $(OUTDIR)/$(1)$(HOST_EXT)
 189 $(OUTDIR)/$(1)$(HOST_EXT): $(OUTDIR)/$(2)$(HOST_EXT)
 190         $(call LOG,STRIP,$$@,$(STRIP) -S -o $$@ $$^)
 191 endef
 192
 193
 194 #
 195 # Run standalone builds (command line builds outside of chrome)
 196 #
 197 ifdef STANDALONE
 198 run: all
 199         $(RUN_UNDER) $(OUTDIR)/$(TARGET)$(HOST_EXT) $(EXE_ARGS)
 200 endif