First

Makefile

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+# PIC32 device number
+DEVICE		= 32MX320F128H
+
+# UART settings for programmer
+TTYDEV		?=/dev/ttyUSB0
+TTYBAUD		?=115200
+
+# Name of the project
+PROGNAME	= outfile
+
+# Linkscript
+LINKSCRIPT	:= p$(shell echo "$(DEVICE)" | tr '[:upper:]' '[:lower:]').ld
+
+# Compiler and linker flags
+CFLAGS		+= -ffreestanding -march=mips32r2 -msoft-float -Wa,-msoft-float
+ASFLAGS		+= -msoft-float
+LDFLAGS		+= -T $(LINKSCRIPT)
+
+# Filenames
+ELFFILE		= $(PROGNAME).elf
+HEXFILE		= $(PROGNAME).hex
+
+# Find all source files automatically
+CFILES          = $(wildcard *.c)
+ASFILES         = $(wildcard *.S)
+SYMSFILES	= $(wildcard *.syms)
+
+# Object file names
+OBJFILES        = $(CFILES:.c=.c.o)
+OBJFILES        +=$(ASFILES:.S=.S.o)
+OBJFILES	+=$(SYMSFILES:.syms=.syms.o)
+
+# Hidden directory for dependency files
+DEPDIR = .deps
+df = $(DEPDIR)/$(*F)
+
+.PHONY: all clean install envcheck
+.SUFFIXES:
+
+all: $(HEXFILE)
+
+clean:
+	$(RM) $(HEXFILE) $(ELFFILE) $(OBJFILES)
+	$(RM) -R $(DEPDIR)
+
+envcheck:
+	@echo "$(TARGET)" | grep mcb32 > /dev/null || (\
+		echo ""; \
+		echo " **************************************************************"; \
+		echo " * Make sure you have sourced the cross compiling environment *"; \
+		echo " * Do this by issuing:                                        *"; \
+		echo " * . /path/to/crosscompiler/environment                       *"; \
+		echo " **************************************************************"; \
+		echo ""; \
+		exit 1)
+
+install: envcheck
+	$(TARGET)avrdude -v -p $(shell echo "$(DEVICE)" | tr '[:lower:]' '[:upper:]') -c stk500v2 -P "$(TTYDEV)" -b $(TTYBAUD) -U "flash:w:$(HEXFILE)"
+
+$(ELFFILE): $(OBJFILES) envcheck
+	$(CC) $(CFLAGS) -o $@ $(OBJFILES) $(LDFLAGS)
+
+$(HEXFILE): $(ELFFILE) envcheck
+	$(TARGET)bin2hex -a $(ELFFILE)
+
+$(DEPDIR):
+	@mkdir -p $@
+
+# Compile C files
+%.c.o: %.c envcheck | $(DEPDIR)
+	$(CC) $(CFLAGS) -c -MD -o $@ $<
+	@cp $*.c.d $(df).c.P; sed -e 's/#.*//' -e 's/^[^:]*: *//' -e 's/ *\\$$//' -e '/^$$/ d' -e 's/$$/ :/' < $*.c.d >> $(df).c.P; $(RM) $*.c.d
+
+# Compile ASM files with C pre-processor directives
+%.S.o: %.S envcheck | $(DEPDIR)
+	$(CC) $(CFLAGS) $(ASFLAGS) -c -MD -o $@ $<
+	@cp $*.S.d $(df).S.P; sed -e 's/#.*//' -e 's/^[^:]*: *//' -e 's/ *\\$$//' -e '/^$$/ d' -e 's/$$/ :/' < $*.S.d >> $(df).S.P; $(RM) $*.S.d
+
+# Link symbol lists to object files
+%.syms.o: %.syms
+	$(LD) -o $@ -r --just-symbols=$<
+
+# Check dependencies
+-include $(CFILES:%.c=$(DEPDIR)/%.c.P)
+-include $(ASFILES:%.S=$(DEPDIR)/%.S.P)