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1 | # |
1 | # |
2 | # Copyright (C) 2005 Martin Decky |
2 | # Copyright (C) 2005 Martin Decky |
3 | # All rights reserved. |
3 | # All rights reserved. |
4 | # |
4 | # |
5 | # Redistribution and use in source and binary forms, with or without |
5 | # Redistribution and use in source and binary forms, with or without |
6 | # modification, are permitted provided that the following conditions |
6 | # modification, are permitted provided that the following conditions |
7 | # are met: |
7 | # are met: |
8 | # |
8 | # |
9 | # - Redistributions of source code must retain the above copyright |
9 | # - Redistributions of source code must retain the above copyright |
10 | # notice, this list of conditions and the following disclaimer. |
10 | # notice, this list of conditions and the following disclaimer. |
11 | # - Redistributions in binary form must reproduce the above copyright |
11 | # - Redistributions in binary form must reproduce the above copyright |
12 | # notice, this list of conditions and the following disclaimer in the |
12 | # notice, this list of conditions and the following disclaimer in the |
13 | # documentation and/or other materials provided with the distribution. |
13 | # documentation and/or other materials provided with the distribution. |
14 | # - The name of the author may not be used to endorse or promote products |
14 | # - The name of the author may not be used to endorse or promote products |
15 | # derived from this software without specific prior written permission. |
15 | # derived from this software without specific prior written permission. |
16 | # |
16 | # |
17 | # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | # |
27 | # |
28 | 28 | ||
29 | ## Make some default assumptions |
- | |
30 | # |
- | |
31 | - | ||
32 | ifndef ARCH |
- | |
33 | ARCH = ia32 |
- | |
34 | endif |
- | |
35 | - | ||
36 | ## Common compiler flags |
29 | ## Common compiler flags |
37 | # |
30 | # |
38 | 31 | ||
- | 32 | LIBC_PREFIX = . |
|
39 | DEFS = -DARCH=$(ARCH) |
33 | DEFS = -DARCH=$(ARCH) |
40 | CFLAGS = -fno-builtin -fomit-frame-pointer -Werror-implicit-function-declaration -Wmissing-prototypes -Werror -O3 -nostdlib -nostdinc -Iinclude |
34 | CFLAGS = -fno-builtin -fomit-frame-pointer -Werror-implicit-function-declaration -Wmissing-prototypes -Werror -O3 -nostdlib -nostdinc -I$(LIBC_PREFIX)/include |
41 | LFLAGS = -M |
35 | LFLAGS = -M |
42 | AFLAGS = |
36 | AFLAGS = |
43 | 37 | ||
44 | ## Setup platform configuration |
38 | ## Setup toolchain |
45 | # |
39 | # |
46 | 40 | ||
47 | include arch/$(ARCH)/Makefile.inc |
41 | include $(LIBC_PREFIX)/Makefile.toolchain |
48 | - | ||
49 | ## Toolchain configuration |
- | |
50 | # |
- | |
51 | - | ||
52 | ifeq ($(COMPILER),native) |
- | |
53 | CC = gcc |
- | |
54 | AS = as |
- | |
55 | LD = ld |
- | |
56 | AR = ar |
- | |
57 | OBJCOPY = objcopy |
- | |
58 | OBJDUMP = objdump |
- | |
59 | else |
- | |
60 | CC = $(TOOLCHAIN_DIR)/$(TARGET)-gcc |
- | |
61 | AS = $(TOOLCHAIN_DIR)/$(TARGET)-as |
- | |
62 | LD = $(TOOLCHAIN_DIR)/$(TARGET)-ld |
- | |
63 | AR = $(TOOLCHAIN_DIR)/$(TARGET)-ar |
- | |
64 | OBJCOPY = $(TOOLCHAIN_DIR)/$(TARGET)-objcopy |
- | |
65 | OBJDUMP = $(TOOLCHAIN_DIR)/$(TARGET)-objdump |
- | |
66 | endif |
- | |
67 | 42 | ||
68 | ## Sources |
43 | ## Sources |
69 | # |
44 | # |
70 | 45 | ||
71 | GENERIC_SOURCES = \ |
46 | GENERIC_SOURCES = \ |
72 | generic/libc.c |
47 | generic/libc.c |
73 | 48 | ||
74 | ARCH_SOURCES = \ |
49 | ARCH_SOURCES = \ |
75 | arch/$(ARCH)/entry.s \ |
50 | arch/$(ARCH)/entry.s \ |
76 | arch/$(ARCH)/syscall.c |
51 | arch/$(ARCH)/syscall.c |
77 | 52 | ||
78 | GENERIC_OBJECTS := $(addsuffix .o,$(basename $(GENERIC_SOURCES))) |
53 | GENERIC_OBJECTS := $(addsuffix .o,$(basename $(GENERIC_SOURCES))) |
79 | ARCH_OBJECTS := $(addsuffix .o,$(basename $(ARCH_SOURCES))) |
54 | ARCH_OBJECTS := $(addsuffix .o,$(basename $(ARCH_SOURCES))) |
80 | 55 | ||
81 | .PHONY: all clean depend |
56 | .PHONY: all clean depend |
82 | 57 | ||
83 | all: libc.a |
58 | all: libc.a _link.ld |
84 | 59 | ||
85 | -include Makefile.depend |
60 | -include Makefile.depend |
86 | 61 | ||
87 | clean: |
62 | clean: |
88 | -rm -f libc.a Makefile.depend |
63 | -rm -f libc.a _link.ld Makefile.depend |
89 | find generic/ arch/$(ARCH)/ -name '*.o' -follow -exec rm \{\} \; |
64 | find generic/ arch/$(ARCH)/ -name '*.o' -follow -exec rm \{\} \; |
90 | 65 | ||
91 | depend: |
66 | depend: |
92 | $(CC) $(DEFS) $(CFLAGS) -M $(ARCH_SOURCES) $(GENERIC_SOURCES) > Makefile.depend |
67 | $(CC) $(DEFS) $(CFLAGS) -M $(ARCH_SOURCES) $(GENERIC_SOURCES) > Makefile.depend |
93 | 68 | ||
94 | libc.a: depend $(ARCH_OBJECTS) $(GENERIC_OBJECTS) |
69 | libc.a: depend $(ARCH_OBJECTS) $(GENERIC_OBJECTS) |
95 | $(AR) rc libc.a $(ARCH_OBJECTS) $(GENERIC_OBJECTS) |
70 | $(AR) rc libc.a $(ARCH_OBJECTS) $(GENERIC_OBJECTS) |
96 | 71 | ||
- | 72 | _link.ld: _link.ld.in |
|
- | 73 | $(CC) $(DEFS) $(CFLAGS) -E -x c $< | grep -v "^\#" > $@ |
|
- | 74 | ||
97 | %.o: %.S |
75 | %.o: %.S |
98 | $(CC) $(DEFS) $(AFLAGS) $(CFLAGS) -D__ASM__ -c $< -o $@ |
76 | $(CC) $(DEFS) $(AFLAGS) $(CFLAGS) -D__ASM__ -c $< -o $@ |
99 | 77 | ||
100 | %.o: %.s |
78 | %.o: %.s |
101 | $(AS) $(AFLAGS) $< -o $@ |
79 | $(AS) $(AFLAGS) $< -o $@ |
102 | 80 | ||
103 | %.o: %.c |
81 | %.o: %.c |
104 | $(CC) $(DEFS) $(CFLAGS) -c $< -o $@ |
82 | $(CC) $(DEFS) $(CFLAGS) -c $< -o $@ |
105 | 83 |