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b73247cf AT |
1 | ############################################################# |
2 | # (c) 2021 Aaron Taylor <ataylor at subgeniuskitty dot com> # | |
3 | # See LICENSE.txt file for copyright and license details. # | |
4 | ############################################################# | |
5 | ||
6 | ################################################################################ | |
7 | # Configuration | |
8 | ################################################################################ | |
9 | ||
10 | # To keep the rules simple, since we are dealing with six different file | |
11 | # extensions, NED_EMBED is defined with no suffix, leaving the suffix to be | |
ab051153 | 12 | # hardcoded in each step as appropriate and simplifying the make target list. |
b73247cf AT |
13 | .SUFFIXES: .ned_asm |
14 | NED_SRC != ls *.ned_asm | |
15 | NED_EMBED := $(NED_SRC:.ned_asm=) | |
16 | ||
17 | # This header file will contain C declarations for the binary blobs and a | |
18 | # variable which tracks their size. It should be included in any C source code | |
19 | # that will link against the object files containing the binary blobs. | |
20 | DECLARATION_HEADER_FILE = embedded_ned_program_declarations.h | |
21 | ||
22 | # Misc program names/paths. | |
23 | GNU_ASM = as | |
24 | NED_ASM = ned1asm | |
25 | NED_OBJDUMP = ned1objdump | |
26 | ||
27 | ################################################################################ | |
28 | # Targets | |
29 | ################################################################################ | |
30 | ||
16d089f6 | 31 | # Since nedasm and nedobjcopy will not overwrite existing files, include target |
b73247cf AT |
32 | # `clean` as a preq. |
33 | all: clean $(NED_EMBED) | |
1da913bb | 34 | # Build an #include guard around the C declarations of the binary blobs. |
b73247cf AT |
35 | @mv $(DECLARATION_HEADER_FILE) $(DECLARATION_HEADER_FILE).tempfile |
36 | @echo "/* Autogenerated code. Do not edit. */" >> $(DECLARATION_HEADER_FILE) | |
37 | @echo "#ifndef NEDSIM_AUTOGEN_BLOB_DECLARATIONS" >> $(DECLARATION_HEADER_FILE) | |
38 | @echo "#define NEDSIM_AUTOGEN_BLOB_DECLARATIONS" >> $(DECLARATION_HEADER_FILE) | |
39 | @cat $(DECLARATION_HEADER_FILE).tempfile >> $(DECLARATION_HEADER_FILE) | |
40 | @rm $(DECLARATION_HEADER_FILE).tempfile | |
41 | @echo "#endif" >> $(DECLARATION_HEADER_FILE) | |
42 | ||
43 | .ned_asm: | |
44 | # We assemble the NED source and then dump the executable code section of | |
45 | # the resulting a.out file as a binary blob. | |
46 | @$(NED_ASM) -i $*.ned_asm -o $*.out | |
47 | @$(NED_OBJDUMP) -i $*.out -o $*.bin | |
48 | # Using `sed`, prepare an x86 assembly file as a container for each NED | |
49 | # binary blob. This includes building a C header file with relevant | |
50 | # declarations for each binary blob. | |
51 | @sed 's/INSERTNAME/$*/g' container.x86_asm_template > $*.x86_asm | |
52 | @echo "extern const uint8_t $*[];" >> $(DECLARATION_HEADER_FILE) | |
53 | @echo "extern const size_t $*_size;" >> $(DECLARATION_HEADER_FILE) | |
54 | # Assemble the container, creating a linkable object file containing the | |
55 | # NED binary blob. | |
56 | @$(GNU_ASM) -o $*.o $*.x86_asm | |
57 | @rm -f $*.bin $*.x86_asm $*.out | |
58 | ||
59 | clean: | |
60 | @rm -f *.bin *.x86_asm *.out *.o $(DECLARATION_HEADER_FILE)* | |
61 |