X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=config.mk;h=9e6b18db5bfbfe191449b458c4467928e00a499a;hb=3b33848a29f6a9ba49a2913ba6b721e01d8b95f5;hp=001601d633f4ee3ea0bf2f2455b544539f81a905;hpb=cc15bc8568ee6dc6032687a6f8d892b702e9c8a2;p=bertos.git diff --git a/config.mk b/config.mk index 001601d6..9e6b18db 100755 --- a/config.mk +++ b/config.mk @@ -10,6 +10,15 @@ # Author: Bernardo Innocenti # # $Log$ +# Revision 1.4 2006/05/27 22:41:46 bernie +# Tweak optimization flags for loops. +# +# Revision 1.3 2006/05/18 00:40:10 bernie +# Setup for AVR development. +# +# Revision 1.2 2006/03/27 04:48:33 bernie +# Add CXXFLAGS; Add recursive targets. +# # Revision 1.1 2006/03/22 09:51:53 bernie # Add build infrastructure. # @@ -27,22 +36,21 @@ DPROG = -V -c stk500 -P /dev/ttyS0 # PonyProg serial programmer #DPROG = -c dasa2 -#OPTCFLAGS = -O3 # DANGER - DO NOT USE - DOESN'T WORK WITH 3.4.1 & 3.5 (HEAD) -OPTCFLAGS = -ffunction-sections -fdata-sections +OPTCFLAGS = -ffunction-sections -fdata-sections -funsafe-loop-optimizations # For AVRStudio #DEBUGCFLAGS = -gdwarf-2 # For GDB -DEBUGCFLAGS = -g +DEBUGCFLAGS = -ggdb # # define some variables based on the AVR base path in $(AVR) # CROSS = CC = $(CROSS)gcc -AS = $(CROSS)$(CC) -x assembler-with-cpp -LD = $(CROSS)$(CC) +AS = $(CC) -x assembler-with-cpp +LD = $(CC) OBJCOPY = $(CROSS)objcopy INSTALL = cp -a RM = rm -f @@ -66,31 +74,54 @@ SHELL = /bin/sh DOXYGEN = doxygen UISP = uisp AVRDUDE = avrdude +FLEXCAT = $(top_srcdir)/tools/flexcat/flexcat # output format can be srec, ihex (avrobj is always created) FORMAT = srec #FORMAT = ihex +# Compiler flags for generating dependencies +DEP_FLAGS = -MMD -MP + +# Compiler flags for generating source listings +LIST_FLAGS = -Wa,-anhlmsd=$(@:.o=.lst) + +# Linker flags for generating map files +MAP_FLAGS = -Wl,-Map=$(@:%.elf=%.map),--cref + +# Compiler warning flags for both C and C++ WARNFLAGS = \ -W -Wformat -Wall -Wundef -Wpointer-arith -Wcast-qual \ - -Wcast-align -Wwrite-strings -Wsign-compare -Wstrict-prototypes \ - -Wmissing-prototypes -Wmissing-noreturn + -Wcast-align -Wwrite-strings -Wsign-compare \ + -Wmissing-prototypes -Wmissing-noreturn \ + -Wextra -Wstrict-aliasing=2 \ + -Wunsafe-loop-optimizations + +# Compiler warning flags for C only +C_WARNFLAGS = \ + -Wmissing-prototypes -Wstrict-prototypes -# default compiler flags -CFLAGS = $(INCDIR) $(OPTCFLAGS) $(DEBUGCFLAGS) $(WARNFLAGS) \ - -MMD -MP -Wa,-anhlmsd=$(@:.o=.lst) -std=gnu99 +# Default C compiler flags +CFLAGS = $(INCDIR) $(OPTCFLAGS) $(DEBUGCFLAGS) $(WARNFLAGS) $(C_WARNFLAGS) \ + $(DEP_FLAGS) $(LIST_FLAGS) -std=gnu99 -# default compiler assembly flags +# Default C++ compiler flags +CXXFLAGS = $(INCDIR) $(OPTCFLAGS) $(DEBUGCFLAGS) $(WARNFLAGS) \ + $(DEP_FLAGS) $(LIST_FLAGS) + +# Default compiler assembly flags CPPAFLAGS = $(DEBUGCFLAGS) -MMD -# default assembler flags +# Default assembler flags ASFLAGS = $(DEBUGCFLAGS) -# default linker flags -#LDFLAGS = -Wl,-Map=$(@:%.elf=%.map),--cref -Wl,--reduce-memory-overheads -LDFLAGS = -Wl,-Map=$(@:%.elf=%.map),--cref -Wl,--gc-sections +# Default linker flags +#LDFLAGS = $(MAP_FLAGS) + +#bernie: does not complain for missing symbols! +#LDFLAGS = $(MAP_FLAGS) -Wl,--gc-sections -# flags for avrdude +# Flags for avrdude AVRDUDEFLAGS = $(DPROG) # additional libs