| 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 |
| 12 | # hardcoded in each step as appropriate and simplying the make target list. |
| 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 | |
| 31 | # Since nedasm and nedobjcopy do not overwrite existing files, include target |
| 32 | # `clean` as a preq. |
| 33 | all: clean $(NED_EMBED) |
| 34 | # Build an #include guard around the C declarations of the binary blobs. |
| 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 | |