mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-12-22 10:30:13 +00:00
28a1e40ebd
This commit moves the Settings Manager from the AVR codebase
into the Contiki core library. Any platform that implements
the Contiki EEPROM API can now use the Settings Manager's
key-value store for storing their persistent configuration info.
The Settings Manager is a EEPROM-based key-value store. Keys
are 16-bit integers and values may be up to 16,383 bytes long.
It is intended to be used to store configuration-related information,
like network settings, radio channels, etc.
* Robust data format which requires no initialization.
* Supports multiple values with the same key.
* Data can be appended without erasing EEPROM.
* Max size of settings data can be easily increased in the future,
as long as it doesn't overlap with application data.
The format was inspired by the [OLPC manufacturing data format][].
Since the beginning of EEPROM often contains application-specific
information, the best place to store settings is at the end of EEPROM
(the "top"). Because we are starting at the end of EEPROM, it makes
sense to grow the list of key-value pairs downward, toward the start of
EEPROM.
Each key-value pair is stored in memory in the following format:
Order | Size | Name | Description
--------:|---------:|--------------|-------------------------------
0 | 2 | `key` | 16-bit key
-2 | 1 | `size_check` | One's-complement of next byte
-3 | 1 or 2 | `size` | The size of `value`, in bytes
-4 or -5 | variable | `value` | Value associated with `key`
The end of the key-value pairs is denoted by the first invalid entry.
An invalid entry has any of the following attributes:
* The `size_check` byte doesn't match the one's compliment of the
`size` byte (or `size_low` byte).
* The key has a value of 0x0000.
[OLPC manufacturing data format]: http://wiki.laptop.org/go/Manufacturing_data
235 lines
6.7 KiB
Makefile
235 lines
6.7 KiB
Makefile
# -*- makefile -*-
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ifndef CONTIKI
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${error CONTIKI not defined! You must specify where Contiki resides}
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endif
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ifeq ($(TARGET),)
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-include Makefile.target
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ifeq ($(TARGET),)
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${info TARGET not defined, using target 'native'}
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TARGET=native
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else
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${info using saved target '$(TARGET)'}
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endif
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endif
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ifeq ($(DEFINES),)
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-include Makefile.$(TARGET).defines
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ifneq ($(DEFINES),)
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${info using saved defines '$(DEFINES)'}
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endif
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endif
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ifndef HOST_OS
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ifeq ($(OS),Windows_NT)
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## TODO: detect more specific Windows set-ups,
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## e.g. CygWin, MingW, VisualC, Watcom, Interix
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HOST_OS := Windows
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else
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HOST_OS := $(shell uname)
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endif
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endif
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usage:
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@echo "make MAKETARGETS... [TARGET=(TARGET)] [savetarget] [targets]"
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targets:
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@ls -1 $(CONTIKI)/platform $(TARGETDIRS) | grep -v CVS
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savetarget:
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-@rm -f Makefile.target
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@echo "saving Makefile.target"
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@echo >Makefile.target "TARGET = $(TARGET)"
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savedefines:
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-@rm -f Makefile.$(TARGET).defines
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@echo "saving Makefile.$(TARGET).defines"
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@echo >Makefile.$(TARGET).defines "DEFINES = $(DEFINES)"
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OBJECTDIR = obj_$(TARGET)
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LOWERCASE = -abcdefghijklmnopqrstuvwxyz
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UPPERCASE = _ABCDEFGHIJKLMNOPQRSTUVWXYZ
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TARGET_UPPERCASE := ${strip ${shell echo $(TARGET) | sed y!$(LOWERCASE)!$(UPPERCASE)!}}
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CFLAGS += -DCONTIKI=1 -DCONTIKI_TARGET_$(TARGET_UPPERCASE)=1
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include $(CONTIKI)/core/net/rime/Makefile.rime
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include $(CONTIKI)/core/net/mac/Makefile.mac
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SYSTEM = process.c procinit.c autostart.c elfloader.c profile.c \
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timetable.c timetable-aggregate.c compower.c serial-line.c
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THREADS = mt.c
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LIBS = memb.c mmem.c timer.c list.c etimer.c ctimer.c energest.c rtimer.c stimer.c \
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print-stats.c ifft.c crc16.c random.c checkpoint.c ringbuf.c settings.c
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DEV = nullradio.c
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include $(CONTIKI)/core/net/Makefile.uip
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include $(CONTIKI)/core/net/rpl/Makefile.rpl
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CTK = ctk.c
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CTKVNC = $(CTK) ctk-vncserver.c libconio.c vnc-server.c vnc-out.c ctk-vncfont.c
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ifndef CONTIKI_NO_NET
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CONTIKIFILES = $(SYSTEM) $(LIBS) $(NET) $(THREADS) $(DHCP) $(DEV)
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else
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CONTIKIFILES = $(SYSTEM) $(LIBS) $(THREADS) $(DEV) sicslowpan.c fakeuip.c
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endif
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CONTIKI_SOURCEFILES += $(CONTIKIFILES)
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CONTIKIDIRS += ${addprefix $(CONTIKI)/core/,dev lib net net/mac net/rime \
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net/rpl sys cfs ctk lib/ctk loader . }
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oname = ${patsubst %.c,%.o,${patsubst %.S,%.o,$(1)}}
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CONTIKI_OBJECTFILES = ${addprefix $(OBJECTDIR)/,${call oname, $(CONTIKI_SOURCEFILES)}}
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PROJECT_OBJECTFILES = ${addprefix $(OBJECTDIR)/,${call oname, $(PROJECT_SOURCEFILES)}}
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### Include application makefiles
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ifdef APPS
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APPDIRS += ${wildcard ${addprefix $(CONTIKI)/apps/, $(APPS)} \
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${addprefix $(CONTIKI)/platform/$(TARGET)/apps/, $(APPS)} \
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$(APPS)}
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APPINCLUDES = ${foreach APP, $(APPS), ${wildcard ${foreach DIR, $(APPDIRS), $(DIR)/Makefile.$(APP)}}}
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-include $(APPINCLUDES)
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APP_SOURCES = ${foreach APP, $(APPS), $($(APP)_src)}
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DSC_SOURCES = ${foreach APP, $(APPS), $($(APP)_dsc)}
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CONTIKI_SOURCEFILES += $(APP_SOURCES) $(DSC_SOURCES)
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endif
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### Include target makefile (TODO Unsafe?)
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target_makefile := $(wildcard $(CONTIKI)/platform/$(TARGET)/Makefile.$(TARGET) ${foreach TDIR, $(TARGETDIRS), $(TDIR)/$(TARGET)/Makefile.$(TARGET)})
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# Check if the target makefile exists, and create the object directory if necessary.
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ifeq ($(strip $(target_makefile)),)
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${error The target platform "$(TARGET)" does not exist (maybe it was misspelled?)}
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else
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ifeq (${wildcard $(OBJECTDIR)},)
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DUMMY := ${shell mkdir $(OBJECTDIR)}
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endif
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ifneq (1, ${words $(target_makefile)})
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${error More than one TARGET Makefile found: $(target_makefile)}
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endif
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include $(target_makefile)
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endif
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### Forward comma-separated list of arbitrary defines to the compiler
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COMMA := ,
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CFLAGS += ${addprefix -D,${subst $(COMMA), ,$(DEFINES)}}
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### Setup directory search path for source and header files
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CONTIKI_TARGET_DIRS_CONCAT = ${addprefix ${dir $(target_makefile)}, \
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$(CONTIKI_TARGET_DIRS)}
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CONTIKI_CPU_DIRS_CONCAT = ${addprefix $(CONTIKI_CPU)/, \
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$(CONTIKI_CPU_DIRS)}
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SOURCEDIRS = . $(PROJECTDIRS) $(CONTIKI_TARGET_DIRS_CONCAT) \
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$(CONTIKI_CPU_DIRS_CONCAT) $(CONTIKIDIRS) $(APPDIRS) ${dir $(target_makefile)}
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vpath %.c $(SOURCEDIRS)
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vpath %.S $(SOURCEDIRS)
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CFLAGS += ${addprefix -I,$(SOURCEDIRS)}
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### Check for a git repo and pass version if found
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### git.exe in Windows cmd shells may require no stderr redirection
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#RELSTR=${shell git describe --tags}
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RELSTR=${shell git describe --tags 2>/dev/null}
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ifneq ($(RELSTR),)
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CFLAGS += -DCONTIKI_VERSION_STRING=\"Contiki-$(RELSTR)\"
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endif
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### Automatic dependency generation
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ifneq ($(MAKECMDGOALS),clean)
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-include ${addprefix $(OBJECTDIR)/,$(CONTIKI_SOURCEFILES:.c=.d) \
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$(PROJECT_SOURCEFILES:.c=.d)}
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endif
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### See http://make.paulandlesley.org/autodep.html#advanced
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define FINALIZE_DEPENDENCY
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cp $(@:.o=.d) $(@:.o=.$$$$); \
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sed -e 's/#.*//' -e 's/^[^:]*: *//' -e 's/ *\\$$//' \
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-e '/^$$/ d' -e 's/$$/ :/' < $(@:.o=.$$$$) >> $(@:.o=.d); \
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rm -f $(@:.o=.$$$$)
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endef
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clean:
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rm -f *~ *core core *.srec \
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*.lst *.map \
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*.cprg *.bin *.data contiki*.a *.firmware core-labels.S *.ihex *.ini \
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*.ce *.co $(CLEAN)
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-rm -rf $(OBJECTDIR)
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ifndef CUSTOM_RULE_C_TO_CE
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%.ce: %.c
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$(CC) $(CFLAGS) -DAUTOSTART_ENABLE -c $< -o $@
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$(STRIP) --strip-unneeded -g -x $@
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endif
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ifndef CUSTOM_RULE_C_TO_OBJECTDIR_O
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$(OBJECTDIR)/%.o: %.c
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$(CC) $(CFLAGS) -MMD -c $< -o $@
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@$(FINALIZE_DEPENDENCY)
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endif
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ifndef CUSTOM_RULE_S_TO_OBJECTDIR_O
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$(OBJECTDIR)/%.o: %.S
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$(AS) $(ASFLAGS) -o $@ $<
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endif
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ifndef CUSTOM_RULE_C_TO_O
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%.o: %.c
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$(CC) $(CFLAGS) -c $< -o $@
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endif
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ifndef CUSTOM_RULE_C_TO_CO
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%.co: %.c
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$(CC) $(CFLAGS) -DAUTOSTART_ENABLE -c $< -o $@
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endif
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ifndef AROPTS
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AROPTS = rcf
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endif
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ifndef CUSTOM_RULE_ALLOBJS_TO_TARGETLIB
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contiki-$(TARGET).a: $(CONTIKI_OBJECTFILES)
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$(AR) $(AROPTS) $@ $^
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endif
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ifndef LD
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LD = $(CC)
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endif
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ifndef CUSTOM_RULE_LINK
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%.$(TARGET): %.co $(PROJECT_OBJECTFILES) $(PROJECT_LIBRARIES) contiki-$(TARGET).a
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$(LD) $(LDFLAGS) $(TARGET_STARTFILES) ${filter-out %.a,$^} ${filter %.a,$^} $(TARGET_LIBFILES) -o $@
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endif
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%.ramprof: %.$(TARGET)
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$(NM) -S -td --size-sort $< | grep -i " [abdrw] " | cut -d' ' -f2,4
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%.flashprof: %.$(TARGET)
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$(NM) -S -td --size-sort $< | grep -i " [t] " | cut -d' ' -f2,4
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# Don't treat %.$(TARGET) as an intermediate file because it is
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# in fact the primary target.
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.PRECIOUS: %.$(TARGET)
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# Cancel the predefined implict rule for compiling and linking
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# a single C source into a binary to force GNU make to consider
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# the match-anything rule below instead.
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%: %.c
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# Match-anything pattern rule to allow the project makefiles to
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# abstract from the actual binary name. It needs to contain some
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# command in order to be a rule, not just a prerequisite.
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%: %.$(TARGET)
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@
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