124 lines
		
	
	
		
			4.5 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			124 lines
		
	
	
		
			4.5 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
DMBS - Dean's Makefile Build System
 | 
						|
===================================
 | 
						|
 | 
						|
 | 
						|
Project Overview
 | 
						|
----------------
 | 
						|
 | 
						|
GNU Make is scary, and it's tough to get the rules right sometimes. Many
 | 
						|
projects get by via simple copy-pasting of old makefiles, resulting in many
 | 
						|
redundant copies of the same old rules. DMBS aims to solve this by providing a
 | 
						|
simple modular set of makefiles which can be included by your project to quickly
 | 
						|
add various build functionality.
 | 
						|
 | 
						|
This aims to replace the old WinAVR "mfile" makefile template, giving better
 | 
						|
functionality and much simpler user makefiles.
 | 
						|
 | 
						|
 | 
						|
Benefits:
 | 
						|
----------------
 | 
						|
 | 
						|
Apart from much simpler, cleaner makefiles DMBS carries the aim of making the
 | 
						|
process of troubleshooting build issues a little easier. Lots can go wrong, so
 | 
						|
DMBS tries to sanity check its inputs wherever possible, and produce
 | 
						|
human-readable error messages. Forgotten to set a variable? Get a
 | 
						|
`Makefile {X} value not set.` message, rather than a possibly unrelated message.
 | 
						|
Have the wrong filename? See `Source file does not exist: {X}` rather than the
 | 
						|
infamous `No rule to make target {X}` message.
 | 
						|
 | 
						|
 | 
						|
Use:
 | 
						|
----------------
 | 
						|
 | 
						|
A template user makefile is provided in the `Template` directory. DMBS modules
 | 
						|
are included via a GNU Make `include` directive. While the DMBS `core` module is
 | 
						|
always required, you can pick and choose what other modules you wish to add to
 | 
						|
your user project.
 | 
						|
 | 
						|
[See here for the documentation on the individual modules provided by DMBS.](DMBS/ModulesOverview.md)
 | 
						|
If you're interested in writing your own DMBS module(s), [see here.](DMBS/WritingYourOwnModules.md)
 | 
						|
 | 
						|
Here's an example user makefile:
 | 
						|
 | 
						|
	MCU          = atmega128
 | 
						|
	ARCH         = AVR8
 | 
						|
	F_CPU        = 8000000
 | 
						|
	OPTIMIZATION = s
 | 
						|
	TARGET       = Template
 | 
						|
	SRC          = $(TARGET).c
 | 
						|
	CC_FLAGS     =
 | 
						|
	LD_FLAGS     =
 | 
						|
 | 
						|
	# Default target
 | 
						|
	all:
 | 
						|
 | 
						|
	# Include DMBS build script makefiles
 | 
						|
	DMBS_PATH   ?= ../DMBS
 | 
						|
	include $(DMBS_PATH)/core.mk
 | 
						|
	include $(DMBS_PATH)/gcc.mk
 | 
						|
	include $(DMBS_PATH)/cppcheck.mk
 | 
						|
	include $(DMBS_PATH)/doxygen.mk
 | 
						|
	include $(DMBS_PATH)/dfu.mk
 | 
						|
	include $(DMBS_PATH)/hid.mk
 | 
						|
	include $(DMBS_PATH)/avrdude.mk
 | 
						|
	include $(DMBS_PATH)/atprogram.mk
 | 
						|
 | 
						|
Each DMBS module can optionally supply one or more Make variables and macros,
 | 
						|
which you can reference in your user makefile. Additionally, modules can require
 | 
						|
one or more variables to be set by the user makefile, with (in some cases) sane
 | 
						|
defaults used if left out.
 | 
						|
 | 
						|
As modules are added, you can get a list of available targets by simply typing
 | 
						|
`make help` from the command line. This will produce a formatted list of targets
 | 
						|
as well as mandatory and optional variables and exposed variables and macros.
 | 
						|
 | 
						|
 | 
						|
Distribution
 | 
						|
----------------
 | 
						|
 | 
						|
You can embed DMBS in your project any way you like - some options are:
 | 
						|
1. A git submodule
 | 
						|
2. A source tarball
 | 
						|
3. A manually copied extracted archive
 | 
						|
 | 
						|
The intention of DMBS is that users can just import it from whatever source
 | 
						|
they like. If your project needs to extend the existing modules in an unusual
 | 
						|
manner, or if you want to provide your own modules, you can include them in
 | 
						|
your project repository (or submit a patch to DMBS if your module is generic
 | 
						|
enough to warrant wide use).
 | 
						|
 | 
						|
 | 
						|
License
 | 
						|
----------------
 | 
						|
 | 
						|
DMBS is released into the public domain, making is suitable for use everywhere,
 | 
						|
by everyone. Contributions are greatly appreciated however, in order to make
 | 
						|
DMBS better for everyone.
 | 
						|
 | 
						|
The actual license text is as follows:
 | 
						|
 | 
						|
	This is free and unencumbered software released into the public domain.
 | 
						|
 | 
						|
	Anyone is free to copy, modify, publish, use, compile, sell, or
 | 
						|
	distribute this software, either in source code form or as a compiled
 | 
						|
	binary, for any purpose, commercial or non-commercial, and by any
 | 
						|
	means.
 | 
						|
 | 
						|
	In jurisdictions that recognize copyright laws, the author or authors
 | 
						|
	of this software dedicate any and all copyright interest in the
 | 
						|
	software to the public domain. We make this dedication for the benefit
 | 
						|
	of the public at large and to the detriment of our heirs and
 | 
						|
	successors. We intend this dedication to be an overt act of
 | 
						|
	relinquishment in perpetuity of all present and future rights to this
 | 
						|
	software under copyright law.
 | 
						|
 | 
						|
	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 | 
						|
	EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 | 
						|
	MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 | 
						|
	IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 | 
						|
	OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 | 
						|
	ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 | 
						|
	OTHER DEALINGS IN THE SOFTWARE.
 | 
						|
 | 
						|
	For more information, please refer to <http://unlicense.org/>
 |