source: rtems/c/src/lib/libbsp/i386/pc386/make/custom/pc386.cfg @ 5e368e84

#
#  Config file for the PC 386 BSP
#

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

RTEMS_CPU=i386
ifeq ($(RTEMS_CPU_MODEL),)
RTEMS_CPU_MODEL=i386_fp
endif

#  This contains the compiler options necessary to select the CPU model
#  and (hopefully) optimize for it. 
#
# NOTE: CPU_CFLAGS is set by pc386 variants.
ifeq ($(CPU_CFLAGS),)
  CPU_CFLAGS = -mtune=i386
endif

# optimize flag: typically -O2
CFLAGS_OPTIMIZE_V = -O2 -g
# Per function sections disabled per https://devel.rtems.org/ticket/2638
CFLAGS_OPTIMIZE_V += -ffunction-sections -fdata-sections
 
LDFLAGS = -Wl,--gc-sections

# Here is the rule to actually build a $(ARCH)/foo$(EXEEXT)
# 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

LDFLAGS += -Wl,-Ttext,$(RELOCADDR)

define bsp-post-link
        $(default-bsp-post-link)
        $(OBJCOPY) -O elf32-i386 \
            --remove-section=.comment \
            --remove-section=.note \
            --strip-unneeded $(basename $@)$(EXEEXT) $(basename $@).nxe
        $(OBJCOPY) -O binary $(basename $@).nxe $(basename $@).bin
        $(PROJECT_TOOLS)/bin2boot -v $(basename $@)$(DOWNEXT) $(HEADERADDR)\
          $(START16FILE) $(START16ADDR) 0 $(basename $@).bin $(RELOCADDR) 0
        rm -f $(basename $@).nxe
endef

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