small optimization changes, gitignores

.gitignore

@@ -1,2 +1,3 @@
 *~
 .*.swp
+.swp

firmware/.gitignore

@@ -0,0 +1,8 @@
+*.d
+*.i
+*.o
+*.s
+disasm
+firmware.hex
+firmware.bin
+

firmware/Makefile

@@ -1,5 +1,5 @@
 DEFINES += -DF_CPU=16000000
-CFLAGS += -save-temps
+#CFLAGS += -save-temps
 
 OBJECTS = usbdrv/usbdrvasm.o  usbdrv/usbdrv.o main.o display.o lcd/lcd.o
 

firmware/avrbuild/Makefile.avrbuild

@@ -3,8 +3,11 @@ CFLAGS += -Wall -Os  -I. -mmcu=atmega88
 
 # further optimization:
 # this removes dead code and does global linker optimization
-#CFLAGS += -ffunction-sections -Wl,--gc-sections -Wl,--relax 
+CFLAGS += -ffunction-sections -Wl,--gc-sections -Wl,--relax 
 #CFLAGS += --param inline-call-cost=2 
+CFLAGS += -fno-move-loop-invariants  # suggestions from from v-usb
+CFLAGS += -fno-tree-scev-cprop  
+CFLAGS += -fno-inline-small-functions 
 
 COMPILE = avr-gcc $(CFLAGS) $(DEFINES)
 

firmware/avrbuild/functionsize.py

@@ -30,15 +30,20 @@ def main():
 		for a,b in sorted(v):
 			print "%4i  %s"%(b,a)
 	print "namespace sizes:"
-	for k,v in namespacedict.items():
+	smallnamespace = 0
+	for k,v in sorted(namespacedict.items()):
+		if(len(v) == 1): # skip if the namespace has one item
+			smallnamespace += sum( [ i[1] for i in v ] )
+			continue
 		totalsize = sum( [ i[1] for i in v ] )
 		print "%4i  %s*"%(totalsize,k)
+	print "%4i  %s*"%(smallnamespace,"<smallnamespace>")
 		
 def get_namespace(name):
 	matchlist = [
 			r"(^__)",
 			r"(^\w+?_)",
-			r"(\w[a-z0-9])[A-Z]"]
+			r"(\w[a-z0-9]+?)[A-Z]"]
 	for i in matchlist:
 		m = re.match(i, name)
 		if m:

vusb-20100715/usbdrv/.gitignore

@@ -0,0 +1,5 @@
+*.d
+*.i
+*.o
+*.s
+