source: rtems/make/custom/pc386.cfg @ 123d4b7d

#
#  Config file for the PC 386 BSP
#
#  $Id$
#

include $(RTEMS_ROOT)/make/custom/default.cfg

RTEMS_CPU=i386
RTEMS_CPU_MODEL=i386_fp

# This is the actual bsp directory used during the build process.
RTEMS_BSP_FAMILY=pc386

#  This contains the compiler options necessary to select the CPU model
#  and (hopefully) optimize for it. 
#
CPU_CFLAGS = 

# optimize flag: typically -0, could use -O4 or -fast
# -O4 is ok for RTEMS
# -fomit-frame-pointer breaks debugging and C++ exceptions
CFLAGS_OPTIMIZE_V=-O4

# Define this to yes if this target supports multiprocessor environments.
HAS_MP=no

#  This section makes the target dependent options file.

#  NDEBUG (C library)
#     if defined asserts do not generate code.  This is commonly used
#     as a command line option.
#
#  RTEMS_TEST_NO_PAUSE (RTEMS tests)
#     do not pause between screens of output in the rtems tests
#
#  RTEMS_DEBUG (RTEMS)
#     If defined, debug checks in RTEMS and support library code are enabled.

define make-target-options
        @echo "/* #define NDEBUG 1 */ "                     >>$@
        @echo "/* #define RTEMS_TEST_NO_PAUSE 1 */"         >>$@
        @echo "/* #define RTEMS_DEBUG  1 */"                >>$@
endef

# Here is the rule to actually build a $(ARCH)/foo.exe
# It also builds $(ARCH)/foo.sr and $(ARCH)/foo.nm
# Usage ref: src/tests/sptest/sp1/Makefile

#+--------------------------------------------------------------------------+
#| Set the value of RELOCADDR to the address where you want your image to
#| load. If you'll be using GRUB to load the images it will have to be >=
#| 0x100000 (1024K). If you are using NetBoot to load the images it can be
#| >= 0x10000 (64K) AND <= 0x97C00 (607K) OR >= 0x100000 (1024K). The memory
#| top is of course another limit. Make sure there is enough space before the
#| upper memory limits for the image and the memory allocated by it to fit.
#| Make sure the value you choose is aligned to 4 bytes.
#+--------------------------------------------------------------------------+
  RELOCADDR=0x00100000

START16FILE=$(PROJECT_RELEASE)/lib/start16$(LIB_VARIANT).bin
START16ADDR=0x00097C00
HEADERADDR=0x00097E00

# The following are definitions of make-exe which will work using ld as
# is currently required.  It is expected that as of gcc 2.8, the end user
# will be able to override parts of the compilers specs and link using gcc.

ifeq ($(RTEMS_USE_GCC272),yes)
define make-exe
        $(LD) -N -T $(LINKCMDS) -Ttext $(RELOCADDR) -e start -nostdlib \
           -o $(basename $@).obj \
           $(START_FILE) $(LINK_OBJS) --start-group $(LINK_LIBS) --end-group
        $(OBJCOPY) -O a.out-i386 \
            --remove-section=.rodata \
            --remove-section=.comment \
            --remove-section=.note \
            --strip-unneeded $(basename $@).obj $@
        $(OBJCOPY) -O binary $(basename $@).obj $(basename $@).bin
        $(BIN2BOOT) -v $(basename $@).bt $(HEADERADDR)\
          $(START16FILE) $(START16ADDR) 0 $(basename $@).bin $(RELOCADDR) 0
        $(NM) -g -n $(basename $@).obj > $(basename $@).num
        $(SIZE) $(basename $@).obj
        $(INSTALL_VARIANT) -m 555 $(basename $@).bt ${PROJECT_RELEASE}/BootImgs
endef
else
define make-exe
        $(CC) $(CPPFLAGS) $(CFLAGS) $(CFLAGS_LD) -Wl,-Ttext,$(RELOCADDR) \
            -Wl,--oformat,elf32-i386 -o $(basename $@).obj \
            -o $(basename $@).obj \
            $(LINK_OBJS) $(LINK_LIBS)
        $(OBJCOPY) -O a.out-i386 \
            --remove-section=.rodata \
            --remove-section=.comment \
            --remove-section=.note \
            --strip-unneeded $(basename $@).obj $@
        $(OBJCOPY) -O binary $(basename $@).obj $(basename $@).bin
        $(PROJECT_TOOLS)/bin2boot -v $(basename $@).bt $(HEADERADDR)\
          $(START16FILE) $(START16ADDR) 0 $(basename $@).bin $(RELOCADDR) 0
        $(NM) -g -n $(basename $@).obj > $(basename $@).num
        $(SIZE) $(basename $@).obj
        $(INSTALL_VARIANT) -m 555 $(basename $@).bt ${PROJECT_RELEASE}/BootImgs
        $(CC) $(CPPFLAGS) $(CFLAGS) $(CFLAGS_LD) -Wl,-Ttext,$(RELOCADDR) \
            -o $(basename $@).coff $(LINK_OBJS) $(LINK_LIBS)
endef
endif

# Miscellaneous additions go here

# BSP-specific tools
BIN2BOOT=$(PROJECT_TOOLS)/bin2boot