| 1 | ## |
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| 2 | ## $Id$ |
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| 3 | ## |
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| 4 | |
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| 5 | ## ------------------------------------------------------------------------- |
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| 6 | ## NOTE: This file is rather immature and has to be considered to be |
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| 7 | ## almost experimental. |
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| 8 | ## |
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| 9 | ## Expect frequent changes -- It deserves to be cleaned up :( |
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| 10 | ## ------------------------------------------------------------------------- |
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| 11 | |
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| 12 | ## The section below is based on make/compilers/gcc-target-default.cfg |
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| 13 | ## used in former versions of RTEMS. |
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| 14 | |
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| 15 | ## |
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| 16 | ## Set up the flags for the toolchains: |
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| 17 | ## |
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| 18 | ## We are considering 3 different building schemes here: |
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| 19 | ## * Using gcc's being able to accept -specs (aka gcc-2.8 building scheme) |
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| 20 | ## * Using gcc's not being able to accept -specs (aka gcc-2.7.2 building |
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| 21 | ## scheme) |
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| 22 | ## * Using third party toolchains (aka non-gcc building scheme) |
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| 23 | ## |
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| 24 | ## Automake conditionals in use: |
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| 25 | ## RTEMS_USE_GCC .. if we are using GCC |
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| 26 | ## RTEMS_USE_GCC272 .. if using gcc and if requested not to apply |
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| 27 | ## gcc <= 2.7.2 incompatible rules |
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| 28 | |
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| 29 | ## NOTES: |
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| 30 | ## * The gcc-2.8 building scheme is the nominal building scheme and |
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| 31 | ## is actively supported. |
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| 32 | ## * The gcc-2.7.2 building scheme is not supported by all BSPs and |
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| 33 | ## is not extensively tested. |
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| 34 | ## * The non-gcc building scheme requires manually setting up environment |
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| 35 | ## variables and is hardly tested at all |
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| 36 | |
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| 37 | ## CFLAGS_OPTIMIZE_V, CFLAGS_DEBUG_V, CFLAGS_PROFILE_V are the values we |
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| 38 | ## would want the corresponding macros to be set to. |
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| 39 | ## |
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| 40 | ## CFLAGS_OPTIMIZE, CFLAGS_DEBUG, CFLAGS_PROFILE are set by the |
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| 41 | ## 'VARIANT=<OPTIMIZE|DEBUG|PROFILE>' targets to their _V values. |
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| 42 | |
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| 43 | ## XCPPFLAGS, XCFLAGS, XCXXFLAGS, XASFLAGS |
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| 44 | ## are used to add flags from the shell |
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| 45 | ## cf. make.info ("Implicit rules/variables" for details) |
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| 46 | |
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| 47 | if RTEMS_USE_GCC |
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| 48 | ## All the stuff below is specific to gcc |
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| 49 | |
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| 50 | CFLAGS_DEFAULT=-g -Wall |
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| 51 | |
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| 52 | if RTEMS_USE_GCC272 |
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| 53 | ## gcc <= 2.7.2 |
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| 54 | RTEMS_CPPFLAGS = -isystem $(PROJECT_INCLUDE) |
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| 55 | |
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| 56 | # default location of Standard C Library |
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| 57 | LIBC_LIBC = `$(CC) $(CPU_CFLAGS) -print-file-name=libc.a $(GCCSED)` |
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| 58 | LIBC_LIBM = `$(CC) $(CPU_CFLAGS) -print-file-name=libm.a $(GCCSED)` |
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| 59 | LIBC_LIBGCC = `$(CC) $(CPU_CFLAGS) -print-libgcc-file-name $(GCCSED)` |
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| 60 | |
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| 61 | ### FIXME: False if using multilibbed RTEMS |
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| 62 | LINK_LIBS_RTEMS = $(PROJECT_RELEASE)/lib/librtemsall$(LIBSUFFIX_VA) |
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| 63 | |
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| 64 | LINK_LIBS_GCC272 = $(LINK_LIBS_RTEMS) $(LIBC_LIBC) $(LIBC_LIBGCC) |
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| 65 | GCCSPECS = |
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| 66 | else |
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| 67 | ## gcc >= 2.8.x |
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| 68 | GCCSPECS = $(GCC_SPECS) $(RTEMS_BSP_SPECS) |
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| 69 | endif |
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| 70 | else |
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| 71 | ## fall back to the old style compilers/*.cfg |
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| 72 | ## CONFIG.CC is supposed to be provided by <BSP>.cfg |
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| 73 | include $(CONFIG.CC) |
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| 74 | endif # RTEMS_USE_GCC |
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| 75 | |
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| 76 | DEFS = @DEFS@ |
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| 77 | |
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| 78 | CPPFLAGS = @CPPFLAGS@ $(CPU_DEFINES) \ |
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| 79 | $(DEFINES) $(XCPPFLAGS) $(CPPFLAGS_GCC) |
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| 80 | CFLAGS = $(CFLAGS_DEFAULT) $(CPU_CFLAGS) $(XCFLAGS) |
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| 81 | CXXFLAGS = $(CFLAGS_DEFAULT) $(CPU_CFLAGS) $(XCXXFLAGS) |
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| 82 | ASFLAGS = $(CPU_ASFLAGS) $(CPU_CFLAGS) $(XASFLAGS) |
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| 83 | |
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| 84 | LINK_LIBS = $(LINK_LIBS_GCC272) $(LD_LIBS) |
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| 85 | |
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| 86 | ## FIXME: This doesn't seem to be correct |
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| 87 | # when debugging, optimize flag: typically empty |
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| 88 | # some compilers do allow optimization with their "-g" |
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| 89 | CFLAGS_DEBUG_OPTIMIZE_V=-g |
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| 90 | CXXFLAGS_DEBUG_OPTIMIZE_V=-g |
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| 91 | LDFLAGS_DEBUG_V = |
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| 92 | |
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| 93 | # profile flag; use gprof(1) |
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| 94 | CFLAGS_PROFILE_V=-pg |
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| 95 | CXXFLAGS_PROFILE_V=-pg |
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| 96 | LDFLAGS_PROFILE_V = |
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| 97 | |
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| 98 | # List of library paths without -L |
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| 99 | LD_PATHS= $(PROJECT_RELEASE)/lib |
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| 100 | |
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| 101 | # ld flag for incomplete link |
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| 102 | LDFLAGS_INCOMPLETE = -r |
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| 103 | |
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| 104 | # ld flags for profiling, debugging |
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| 105 | LDFLAGS=$(LDFLAGS_PROFILE) $(LDFLAGS_DEBUG) $(LD_PATHS:%=-L %) |
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| 106 | |
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| 107 | # |
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| 108 | # Client compiler and support tools |
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| 109 | # |
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| 110 | |
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| 111 | # |
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| 112 | # How to compile stuff into ${ARCH} subdirectory |
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| 113 | # |
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| 114 | |
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| 115 | COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \ |
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| 116 | $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) |
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| 117 | CCLD = $(CC) |
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| 118 | LINK = $(CCLD) $(AM_CFLAGS) $(CFLAGS) \ |
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| 119 | $(AM_LDFLAGS) $(LDFLAGS) -o $@ |
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| 120 | |
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| 121 | CXXLD = $(CXX) |
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| 122 | CXXCOMPILE = $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \ |
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| 123 | $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) |
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| 124 | CXXLINK = $(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) \ |
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| 125 | $(AM_LDFLAGS) $(LDFLAGS) -o $@ |
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| 126 | |
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| 127 | AS = $(CC) |
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| 128 | ASCOMPILE = $(AS) $(AM_ASFLAGS) $(ASFLAGS) -o $@ |
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| 129 | |
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| 130 | ${ARCH}/%.o: %.c |
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| 131 | ${COMPILE} -o $@ -c $< |
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| 132 | |
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| 133 | ${ARCH}/%.o: %.cc |
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| 134 | ${CXXCOMPILE} -o $@ -c $< |
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| 135 | |
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| 136 | ${ARCH}/%.o: %.cpp |
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| 137 | ${CXXCOMPILE} -o $@ -c $< |
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| 138 | |
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| 139 | ${ARCH}/%.o: %.cxx |
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| 140 | ${CXXCOMPILE} -o $@ -c $< |
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| 141 | |
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| 142 | ${ARCH}/%.o: %.C |
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| 143 | ${CXXCOMPILE} -o $@ -c $< |
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| 144 | |
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| 145 | ${ARCH}/%.o: %.S |
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| 146 | ${ASCOMPILE} -DASM -c $< |
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| 147 | |
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| 148 | # Make foo.rel from foo.o |
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| 149 | ${ARCH}/%.rel: ${ARCH}/%.o |
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| 150 | ${make-rel} |
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| 151 | |
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| 152 | # create $(ARCH)/pgm from pgm.sh |
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| 153 | ${ARCH}/%: %.sh |
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| 154 | $(RM) $@ |
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| 155 | $(CP) $< $@ |
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| 156 | $(CHMOD) +x $@ |
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| 157 | |
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| 158 | # Dependency files for use by gmake |
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| 159 | # NOTE: we don't put them into $(ARCH) |
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| 160 | # so that 'make clean' doesn't blow it away |
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| 161 | |
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| 162 | DEPEND=Depends-${ARCH} |
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| 163 | |
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| 164 | CLEAN_DEPEND=$(DEPEND).tmp |
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| 165 | CLOBBER_DEPEND=$(DEPEND) |
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| 166 | |
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| 167 | # We deliberately don't have anything depend on the |
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| 168 | # $(DEPEND) file; otherwise it will get rebuilt even |
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| 169 | # on 'make clean' |
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| 170 | # |
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| 171 | |
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| 172 | ## HACK: Specific to gcc |
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| 173 | ## FIXME: The approach below is known to be conceptionally broken. |
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| 174 | depend-am: $(C_FILES) $(CC_FILES) $(S_FILES) |
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| 175 | ## Use gcc -M to generate dependencies |
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| 176 | ## Replace foo.o with $(ARCH)/foo.o |
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| 177 | ## Replace $(ARCH) value with string $(ARCH) |
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| 178 | ## so that it will for debug and profile cases |
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| 179 | $(COMPILE) $(AM_CPPFLAGS) $(AM_CFLAGS) -M $^ | \ |
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| 180 | sed -e 's?^\(.*\)\.o[ ]*:?$$(ARCH)/\1.o:?' \ |
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| 181 | -e 's?$(ARCH)/?$$(ARCH)/?' >$(DEPEND).tmp |
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| 182 | mv $(DEPEND).tmp $(DEPEND) |
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| 183 | depend: depend-am |
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| 184 | |
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| 185 | # pull in dependencies if they exist |
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| 186 | ifeq (${DEPEND},$(wildcard ${DEPEND})) |
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| 187 | include ${DEPEND} |
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| 188 | @ENDIF@ |
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| 189 | |
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| 190 | |
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| 191 | # spell out all the LINK_FILE's, rather than using -lbsp, so |
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| 192 | # that $(LINK_FILES) can be a dependency |
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| 193 | |
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| 194 | LINK_OBJS = \ |
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| 195 | $(OBJS) \ |
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| 196 | $(MANAGERS_NOT_WANTED:%=$(PROJECT_RELEASE)/lib/no-%$(LIB_VARIANT).rel) |
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| 197 | |
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| 198 | LINK_FILES =\ |
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| 199 | $(START_FILE) \ |
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| 200 | $(OBJS) \ |
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| 201 | $(MANAGERS_NOT_WANTED:%=$(PROJECT_RELEASE)/lib/no-%$(LIB_VARIANT).rel) \ |
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| 202 | $(PROJECT_RELEASE)/lib/librtemsall$(LIBSUFFIX_VA) |
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| 203 | |
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| 204 | if RTEMS_USE_GCC |
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| 205 | if RTEMS_USE_GCC272 |
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| 206 | define make-rel |
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| 207 | $(LINK) -nostdlib -Wl,-r $(XLDFLAGS) -o $@ $^ |
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| 208 | endef |
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| 209 | else |
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| 210 | ## gcc >= 2.8 |
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| 211 | define make-rel |
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| 212 | $(LINK) -qnolinkcmds -nostdlib -Wl,-r $(XLDFLAGS) $^ |
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| 213 | endef |
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| 214 | endif |
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| 215 | else |
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| 216 | ## non-gcc |
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| 217 | define make-rel |
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| 218 | $(LINK) $(XLDFLAGS) $^ |
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| 219 | endef |
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| 220 | endif |
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| 221 | |
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| 222 | ## ------------------------------------------------------------------------- |
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| 223 | |
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| 224 | ## translate VARIANT into VARIANT_V |
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| 225 | VARIANT = OPTIMIZE |
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| 226 | |
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| 227 | VARIANT_OPTIMIZE_V = OPTIMIZE |
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| 228 | VARIANT_DEBUG_V = DEBUG |
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| 229 | VARIANT_PROFILE_V = PROFILE |
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| 230 | VARIANT_optimize_V = OPTIMIZE |
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| 231 | VARIANT_debug_V = DEBUG |
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| 232 | VARIANT_profile_V = PROFILE |
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| 233 | |
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| 234 | VARIANT_V = $(VARIANT_$(VARIANT)_V) |
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| 235 | |
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| 236 | ## Setup the variant build subdirectory |
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| 237 | ARCH_OPTIMIZE_V = o-optimize |
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| 238 | ARCH_DEBUG_V = o-debug |
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| 239 | ARCH_PROFILE_V = o-profile |
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| 240 | |
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| 241 | ARCH__V = $(ARCH_OPTIMIZE_V) |
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| 242 | ARCH = $(ARCH_$(VARIANT_V)_V) |
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| 243 | |
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| 244 | ## Setup the library suffix |
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| 245 | LIBSUFFIX_OPTIMIZE_V = |
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| 246 | LIBSUFFIX_DEBUG_V = _g |
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| 247 | LIBSUFFIX_PROFILE_V = _p |
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| 248 | LIBSUFFIX__V = $(LIBSUFFIX_OPTIMIZE_V) |
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| 249 | |
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| 250 | LIB_VARIANT = $(LIBSUFFIX_$(VARIANT_V)_V) |
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| 251 | LIBSUFFIX_VA = $(LIB_VARIANT).a |
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| 252 | |
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| 253 | ## These are supposed to be set in make/custom/<bsp>.cfg |
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| 254 | ## CFLAGS_OPTIMIZE_V = |
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| 255 | ## CFLAGS_DEBUG_V = |
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| 256 | ## CFLAGS_PROFILE_V = |
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| 257 | CFLAGS__V = $(CFLAGS_OPTIMIZE_V) |
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| 258 | |
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| 259 | ## ------------------------------------------------------------------------ |
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| 260 | ## Setup hard-coded flags |
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| 261 | if RTEMS_USE_GCC |
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| 262 | if RTEMS_USE_GCC272 |
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| 263 | ## gcc < gcc-2.8 |
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| 264 | RTEMS_CFLAGS_OPTIMIZE_V = |
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| 265 | RTEMS_CFLAGS_DEBUG_V = -Wno-unused |
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| 266 | RTEMS_CFLAGS_PROFILE_V = |
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| 267 | else |
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| 268 | ## gcc >= gcc-2.8 |
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| 269 | RTEMS_CFLAGS_OPTIMIZE_V = |
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| 270 | RTEMS_CFLAGS_DEBUG_V = -qrtems_debug -Wno-unused |
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| 271 | RTEMS_CFLAGS_PROFILE_V = |
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| 272 | endif |
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| 273 | ## non-gcc |
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| 274 | ## We can't guess what flags might be required here. |
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| 275 | ## Pass the values from the environment if you want to apply them. |
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| 276 | endif |
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| 277 | RTEMS_CFLAGS__V = $(RTEMS_CFLAGS_OPTIMIZE_V) |
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| 278 | |
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| 279 | ## ------------------------------------------------------------------------- |
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| 280 | |
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| 281 | CC = @CC@ $(GCCSPECS) |
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| 282 | CXX = @CXX@ $(GCCSPECS) |
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| 283 | CPP = @CPP@ $(GCCSPECS) |
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| 284 | |
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| 285 | LD = @LD@ |
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| 286 | OBJCOPY = @OBJCOPY@ |
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| 287 | NM = @NM@ |
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| 288 | SIZE = @SIZE@ |
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| 289 | STRIP = @STRIP@ |
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| 290 | |
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| 291 | |
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| 292 | ## |
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| 293 | AM_CPPFLAGS = $(RTEMS_CPPFLAGS) |
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| 294 | |
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| 295 | AM_CFLAGS = $(RTEMS_CFLAGS_$(VARIANT_V)_V) $(CFLAGS_$(VARIANT_V)_V) |
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| 296 | AM_CXXFLAGS = $(RTEMS_CFLAGS_$(VARIANT_V)_V) $(CFLAGS_$(VARIANT_V)_V) |
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