blob: 8d54f40d62c184ca05062b536d01d208fbd8cdfe (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
#
# Config file for Motorola MCP750 -- a MPC750 CompactPCI board
#
# $Id$
#
include $(RTEMS_ROOT)/make/custom/default.cfg
RTEMS_CPU=powerpc
RTEMS_CPU_MODEL=mpc750
RTEMS_PPC_EXCEPTION_PROCESSING_MODEL=new
# This is the actual bsp directory used during the build process.
RTEMS_BSP_FAMILY=motorola_powerpc
# This section makes the target dependent options file.
# PPC_VECTOR_FILE_BASE (ppc)
# This defines the base address of the exception table.
# NOTE: Vectors are actually at 0xFFF00000 but file starts at offset 0x0100
#
# PPC_USE_SPRG (RTEMS PowerPC port)
# If defined, then the PowerPC specific code in RTEMS will use some
# of the special purpose registers to slightly optimize interrupt
# response time. The use of these registers can conflict with
# other tools like debuggers.
#
# PPC_USE_DATA_CACHE (RTEMS PowerPC port)
# If defined, then the PowerPC specific code in RTEMS will use
# data cache instructions to optimize the context switch code.
# This code can conflict with debuggers or emulators.
#
define make-target-options
@echo "#define PPCN_60X_USE_DINK 0" >>$@
@echo "#define PPCN_60X_USE_NONE 1" >>$@
@echo "#define PPC_USE_DATA_CACHE 1" >>$@
@echo "#define PPC_VECTOR_FILE_BASE 0x0100" >>$@
@echo "#define PPC_USE_SPRG 1" >>$@
endef
# This contains the compiler options necessary to select the CPU model
# and (hopefully) optimize for it.
#
# NOTE : cheking egcc 1.1.1 source code shows that the last know processor
# is the 604 model and that this is the default generation option.
#
CPU_CFLAGS = -mcpu=750
# optimize flag: typically -0, could use -O4 or -fast
# -O4 is ok for RTEMS
# NOTE2: some level of -O may be actually required by inline assembler (at least
# -O2 so far.
# NOTE2 Apparently nobody really knows the status or r2 and r13.
# As far as I know, small data are pointer impose a very specific compliation
# model => not used.
# Currently the sdata2 and sbss2 sections are empty => r2 is not used...
CFLAGS_OPTIMIZE_V=-O4 -mmultiple -mstring -mstrict-align
#CFLAGS_OPTIMIZE_V=-O4 -fno-keep-inline-functions -fvolatile-global -fvolatile -mstrict-align -mcpu=750
# debug flags: typically none, but at least -O1 is required due to this
# BSP using inlined code
CFLAGS_DEBUG_V = -O1 -mmultiple -mstring -mstrict-align
# The following is a ld command file which works without using the
# -specs system in gcc 2.8. IT HAS NEVER BEEN TESTED WITH THIS BSP!!!
# $(LD) $(XLDFLAGS) -T $(LINKCMDS) \
# -o $@ -u atexit -u __vectors -u download_entry $(LINK_FILES)
# $(LD) $(XLDFLAGS) -Ttext 0x20000 \
# -o $@ -u atexit -u __vectors -u download_entry $(LINK_FILES)
# $(CC) -mmvme -mrtems -nostartfiles -mcpu=603 \
# -o $(basename $@).exe -L $(PROJECT_RELEASE)/lib \
# $(START_FILE) $(LINK_OBJS) \
# $(LD_LIBS) \
# -Wl,-\( -Wl,-lc -Wl,-lrtemsall -Wl,-lgcc -Wl,-\)
define make-exe
$(LINK.c) $(AM_CFLAGS) $(AM_LDFLAGS) \
-o $(basename $@).nxe $(LINK_OBJS) $(LINK_LIBS)
$(NM) -g -n $(basename $@).nxe > $(basename $@).num
$(SIZE) $(basename $@).nxe
$(OBJCOPY) $(basename $@).nxe rtems -O binary -R .comment -S
gzip -vf9 rtems
$(LD) -o $@ $(PROJECT_RELEASE)/lib/bootloader.o --just-symbols=$(basename $@).nxe \
-b binary rtems.gz -T $(PROJECT_RELEASE)/lib/ppcboot.lds \
-Map $(basename $@).map && chmod 755 $@
rm -f rtems.gz
endef
# Miscellaneous additions go here
|