forked from Imagelibrary/rtems
fdfa5b9f5c
* custom/mcp750.cfg (make-exe): Rewrite to avoid writing to install point or assuming BSP build tree is available.
91 lines
3.5 KiB
INI
91 lines
3.5 KiB
INI
#
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# Config file for Motorola MCP750 -- a MPC750 CompactPCI board
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#
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# $Id$
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#
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include $(RTEMS_ROOT)/make/custom/default.cfg
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RTEMS_CPU=powerpc
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RTEMS_CPU_MODEL=mpc750
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RTEMS_PPC_EXCEPTION_PROCESSING_MODEL=new
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# This is the actual bsp directory used during the build process.
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RTEMS_BSP_FAMILY=motorola_powerpc
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# This section makes the target dependent options file.
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# PPC_VECTOR_FILE_BASE (ppc)
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# This defines the base address of the exception table.
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# NOTE: Vectors are actually at 0xFFF00000 but file starts at offset 0x0100
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#
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# PPC_USE_SPRG (RTEMS PowerPC port)
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# If defined, then the PowerPC specific code in RTEMS will use some
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# of the special purpose registers to slightly optimize interrupt
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# response time. The use of these registers can conflict with
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# other tools like debuggers.
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#
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# PPC_USE_DATA_CACHE (RTEMS PowerPC port)
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# If defined, then the PowerPC specific code in RTEMS will use
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# data cache instructions to optimize the context switch code.
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# This code can conflict with debuggers or emulators.
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#
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define make-target-options
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@echo "#define PPCN_60X_USE_DINK 0" >>$@
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@echo "#define PPCN_60X_USE_NONE 1" >>$@
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@echo "#define PPC_USE_DATA_CACHE 1" >>$@
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@echo "#define PPC_VECTOR_FILE_BASE 0x0100" >>$@
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@echo "#define PPC_USE_SPRG 1" >>$@
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endef
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# This contains the compiler options necessary to select the CPU model
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# and (hopefully) optimize for it.
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#
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# NOTE : cheking egcc 1.1.1 source code shows that the last know processor
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# is the 604 model and that this is the default generation option.
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#
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CPU_CFLAGS = -mcpu=750
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# optimize flag: typically -0, could use -O4 or -fast
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# -O4 is ok for RTEMS
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# NOTE2: some level of -O may be actually required by inline assembler (at least
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# -O2 so far.
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# NOTE2 Apparently nobody really knows the status or r2 and r13.
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# As far as I know, small data are pointer impose a very specific compliation
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# model => not used.
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# Currently the sdata2 and sbss2 sections are empty => r2 is not used...
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CFLAGS_OPTIMIZE_V=-O4 -mmultiple -mstring -mstrict-align
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#CFLAGS_OPTIMIZE_V=-O4 -fno-keep-inline-functions -fvolatile-global -fvolatile -mstrict-align -mcpu=750
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# debug flags: typically none, but at least -O1 is required due to this
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# BSP using inlined code
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CFLAGS_DEBUG_V = -O1 -mmultiple -mstring -mstrict-align
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# The following is a ld command file which works without using the
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# -specs system in gcc 2.8. IT HAS NEVER BEEN TESTED WITH THIS BSP!!!
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# $(LD) $(XLDFLAGS) -T $(LINKCMDS) \
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# -o $@ -u atexit -u __vectors -u download_entry $(LINK_FILES)
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# $(LD) $(XLDFLAGS) -Ttext 0x20000 \
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# -o $@ -u atexit -u __vectors -u download_entry $(LINK_FILES)
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# $(CC) -mmvme -mrtems -nostartfiles -mcpu=603 \
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# -o $(basename $@).exe -L $(PROJECT_RELEASE)/lib \
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# $(START_FILE) $(LINK_OBJS) \
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# $(LD_LIBS) \
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# -Wl,-\( -Wl,-lc -Wl,-lrtemsall -Wl,-lgcc -Wl,-\)
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define make-exe
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$(LINK.c) $(AM_CFLAGS) $(AM_LDFLAGS) \
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-o $(basename $@).nxe $(LINK_OBJS) $(LINK_LIBS)
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$(NM) -g -n $(basename $@).nxe > $(basename $@).num
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$(SIZE) $(basename $@).nxe
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$(OBJCOPY) $(basename $@).nxe rtems -O binary -R .comment -S
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gzip -vf9 rtems
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$(LD) -o $@ $(PROJECT_RELEASE)/lib/bootloader.o --just-symbols=$(basename $@).nxe \
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-b binary rtems.gz -T $(PROJECT_RELEASE)/lib/ppcboot.lds \
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-Map $(basename $@).map && chmod 755 $@
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rm -f rtems.gz
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endef
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# Miscellaneous additions go here
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