| 1 | # |
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| 2 | # Config file for the PC 386 BSP |
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| 3 | # |
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| 4 | |
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| 5 | include $(RTEMS_ROOT)/make/custom/default.cfg |
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| 6 | |
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| 7 | RTEMS_CPU=i386 |
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| 8 | |
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| 9 | # This contains the compiler options necessary to select the CPU model |
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| 10 | # and (hopefully) optimize for it. |
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| 11 | # |
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| 12 | # NOTE: CPU_CFLAGS is set by pc386 variants. |
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| 13 | ifeq ($(CPU_CFLAGS),) |
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| 14 | CPU_CFLAGS = -mtune=i386 |
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| 15 | endif |
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| 16 | |
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| 17 | # optimize flag: typically -O2 |
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| 18 | CFLAGS_OPTIMIZE_V = -O2 -g |
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| 19 | # Per function sections disabled per https://devel.rtems.org/ticket/2638 |
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| 20 | CFLAGS_OPTIMIZE_V += -ffunction-sections -fdata-sections |
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| 21 | |
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| 22 | LDFLAGS = -Wl,--gc-sections |
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| 23 | |
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| 24 | # Here is the rule to actually build a $(ARCH)/foo$(EXEEXT) |
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| 25 | # It also builds $(ARCH)/foo.sr and $(ARCH)/foo.nm |
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| 26 | # Usage ref: src/tests/sptest/sp1/Makefile |
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| 27 | |
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| 28 | #+--------------------------------------------------------------------------+ |
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| 29 | #| Set the value of RELOCADDR to the address where you want your image to |
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| 30 | #| load. If you'll be using GRUB to load the images it will have to be >= |
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| 31 | #| 0x100000 (1024K). If you are using NetBoot to load the images it can be |
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| 32 | #| >= 0x10000 (64K) AND <= 0x97C00 (607K) OR >= 0x100000 (1024K). The memory |
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| 33 | #| top is of course another limit. Make sure there is enough space before the |
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| 34 | #| upper memory limits for the image and the memory allocated by it to fit. |
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| 35 | #| Make sure the value you choose is aligned to 4 bytes. |
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| 36 | #+--------------------------------------------------------------------------+ |
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| 37 | RELOCADDR=0x00100000 |
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| 38 | |
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| 39 | START16FILE=$(PROJECT_RELEASE)/lib/start16$(LIB_VARIANT).bin |
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| 40 | START16ADDR=0x00097C00 |
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| 41 | HEADERADDR=0x00097E00 |
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| 42 | |
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| 43 | LDFLAGS += -Wl,-Ttext,$(RELOCADDR) |
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| 44 | |
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| 45 | define bsp-post-link |
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| 46 | $(default-bsp-post-link) |
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| 47 | $(OBJCOPY) -O elf32-i386 \ |
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| 48 | --remove-section=.comment \ |
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| 49 | --remove-section=.note \ |
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| 50 | --strip-unneeded $(basename $@)$(EXEEXT) $(basename $@).nxe |
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| 51 | $(OBJCOPY) -O binary $(basename $@).nxe $(basename $@).bin |
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| 52 | $(PROJECT_TOOLS)/bin2boot -v $(basename $@)$(DOWNEXT) $(HEADERADDR)\ |
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| 53 | $(START16FILE) $(START16ADDR) 0 $(basename $@).bin $(RELOCADDR) 0 |
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| 54 | rm -f $(basename $@).nxe |
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| 55 | endef |
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| 56 | |
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| 57 | # BSP-specific tools |
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| 58 | BIN2BOOT=$(PROJECT_TOOLS)/bin2boot |
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