LUFA/Build/DMBS/Readme.md

   1 DMBS - Dean's Makefile Build System
   2 ===================================
   3
   4
   5 Project Overview
   6 ----------------
   7
   8 GNU Make is scary, and it's tough to get the rules right sometimes. Many
   9 projects get by via simple copy-pasting of old makefiles, resulting in many
  10 redundant copies of the same old rules. DMBS aims to solve this by providing a
  11 simple modular set of makefiles which can be included by your project to quickly
  12 add various build functionality.
  13
  14 This aims to replace the old WinAVR "mfile" makefile template, giving better
  15 functionality and much simpler user makefiles.
  16
  17
  18 Benefits:
  19 ----------------
  20
  21 Apart from much simpler, cleaner makefiles DMBS carries the aim of making the
  22 process of troubleshooting build issues a little easier. Lots can go wrong, so
  23 DMBS tries to sanity check its inputs wherever possible, and produce
  24 human-readable error messages. Forgotten to set a variable? Get a
  25 `Makefile {X} value not set.` message, rather than a possibly unrelated message.
  26 Have the wrong filename? See `Source file does not exist: {X}` rather than the
  27 infamous `No rule to make target {X}` message.
  28
  29
  30 Use:
  31 ----------------
  32
  33 A template user makefile is provided in the `Template` directory. DMBS modules
  34 are included via a GNU Make `include` directive. While the DMBS `core` module is
  35 always required, you can pick and choose what other modules you wish to add to
  36 your user project.
  37
  38 DMBS is also used in the LUFA Project which provides a
  39 [detailed documentation](http://www.fourwalledcubicle.com/files/LUFA/Doc/151115/html/_page__build_system.html)
  40 of DMBS.
  41
  42 Here's an example user makefile:
  43
  44         MCU          = atmega128
  45         ARCH         = AVR8
  46         F_CPU        = 8000000
  47         OPTIMIZATION = s
  48         TARGET       = Template
  49         SRC          = $(TARGET).c
  50         CC_FLAGS     =
  51         LD_FLAGS     =
  52
  53         # Default target
  54         all:
  55
  56         # Include DMBS build script makefiles
  57         DMBS_PATH   ?= ../DMBS
  58         include $(DMBS_PATH)/core.mk
  59         include $(DMBS_PATH)/gcc.mk
  60         include $(DMBS_PATH)/cppcheck.mk
  61         include $(DMBS_PATH)/doxygen.mk
  62         include $(DMBS_PATH)/dfu.mk
  63         include $(DMBS_PATH)/hid.mk
  64         include $(DMBS_PATH)/avrdude.mk
  65         include $(DMBS_PATH)/atprogram.mk
  66
  67 Each DMBS module can optionally supply one or more Make variables and macros,
  68 which you can reference in your user makefile. Additionally, modules can require
  69 one or more variables to be set by the user makefile, with (in some cases) sane
  70 defaults used if left out.
  71
  72 As modules are added, you can get a list of available targets by simply typing
  73 `make help` from the command line. This will produce a formatted list of targets
  74 as well as mandatory and optional variables and exposed variables and macros.
  75
  76
  77 License
  78 ----------------
  79
  80 DMBS is released into the public domain, making is suitable for use everywhere,
  81 by everyone. Contributions are greatly appreciated however, in order to make
  82 DMBS better for everyone.
  83
  84 The actual license text is as follows:
  85
  86         This is free and unencumbered software released into the public domain.
  87
  88         Anyone is free to copy, modify, publish, use, compile, sell, or
  89         distribute this software, either in source code form or as a compiled
  90         binary, for any purpose, commercial or non-commercial, and by any
  91         means.
  92
  93         In jurisdictions that recognize copyright laws, the author or authors
  94         of this software dedicate any and all copyright interest in the
  95         software to the public domain. We make this dedication for the benefit
  96         of the public at large and to the detriment of our heirs and
  97         successors. We intend this dedication to be an overt act of
  98         relinquishment in perpetuity of all present and future rights to this
  99         software under copyright law.
 100
 101         THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 102         EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 103         MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 104         IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 105         OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 106         ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 107         OTHER DEALINGS IN THE SOFTWARE.
 108
 109         For more information, please refer to <http://unlicense.org/>