From: Kevin Rosenberg <kevin@rosenberg.net>
Date: Sun, 30 Mar 2008 18:58:04 +0000 (-0600)
Subject: Improve makefiles with more listing outputs as well as stop linker crashes using... 
X-Git-Url: http://git.kpe.io/?p=avr_bc100.git;a=commitdiff_plain;h=7997f136b12114035265bd082c854bff95fd73dc

Improve makefiles with more listing outputs as well as stop linker crashes using -Wl,-gc-sections
---

diff --git a/BaseTinyFirmware/GCC/ChangeLog b/BaseTinyFirmware/GCC/ChangeLog
index 87d741b..9c5d2d5 100644
--- a/BaseTinyFirmware/GCC/ChangeLog
+++ b/BaseTinyFirmware/GCC/ChangeLog
@@ -1,3 +1,8 @@
+2008-03-30 Kevin Rosenberg <kevin@rosenberg.net>
+	* GCC Makefile's improved with more listing output as well as
+	added -Wl,-gc-sections option which stops crashes using linker
+	relaxation [thanks to Eric Weddington]
+
 2008-03-28 Kevin Rosenberg <kevin@rosenberg.net>
 	* BaseTinyFirmware/GCC/avr463/Makefile: Added -Wl,-relax to linker
 	flags. On my system this crashes avr-ld.exe, but others have reported
diff --git a/BaseTinyFirmware/GCC/avr458/Makefile b/BaseTinyFirmware/GCC/avr458/Makefile
index 38e74fb..412aa8d 100644
--- a/BaseTinyFirmware/GCC/avr458/Makefile
+++ b/BaseTinyFirmware/GCC/avr458/Makefile
@@ -13,8 +13,10 @@ COMMON = -mmcu=$(MCU)
 
 ## Compile options common for all C compilation units.
 CFLAGS = $(COMMON)
-CFLAGS += -Wall -gdwarf-2 -std=gnu99 -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -DLIION
-CFLAGS += -MD -MP -MT $(*F).o -MF dep/$(@F).d 
+CFLAGS += -gdwarf-2 -std=gnu99 -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -ffunction-sections
+CFLAGS += -Wall -Wstrict-prototypes -Wundef -Wa,-adhlns=./$(*F).lst
+CFLAGS += -MMD -MP -MF dep/$(@F).d  
+CFLAGS += -DLIION
 
 ## Assembly specific flags
 ASMFLAGS = $(COMMON)
@@ -23,12 +25,10 @@ ASMFLAGS += -x assembler-with-cpp -Wa,-gdwarf2
 
 ## Linker flags
 LDFLAGS = $(COMMON)
-LDFLAGS +=  -Wl,-Map=$(PROJECT).map -Wl,--relax
-
+LDFLAGS +=  -Wl,-Map=$(PROJECT).map,--cref -Wl,-gc-sections -Wl,-relax
 
 ## Intel Hex file production flags
 HEX_FLASH_FLAGS = -R .eeprom
-
 HEX_EEPROM_FLAGS = -j .eeprom
 HEX_EEPROM_FLAGS += --set-section-flags=.eeprom="alloc,load"
 HEX_EEPROM_FLAGS += --change-section-lma .eeprom=0 --no-change-warnings
@@ -100,7 +100,7 @@ size: ${TARGET}
 ## Clean target
 .PHONY: clean
 clean:
-	-rm -rf $(OBJECTS) $(PROJECT).elf dep $(PROJECT).hex $(PROJECT).eep $(PROJECT).lss $(PROJECT).map
+	-rm -rf $(OBJECTS) $(PROJECT).elf dep $(PROJECT).hex $(PROJECT).eep $(PROJECT).lss $(PROJECT).map *.lst
 
 
 ## Other dependencies
diff --git a/BaseTinyFirmware/GCC/avr463/Makefile b/BaseTinyFirmware/GCC/avr463/Makefile
index fd8c0f6..c2c00b0 100644
--- a/BaseTinyFirmware/GCC/avr463/Makefile
+++ b/BaseTinyFirmware/GCC/avr463/Makefile
@@ -13,8 +13,10 @@ COMMON = -mmcu=$(MCU)
 
 ## Compile options common for all C compilation units.
 CFLAGS = $(COMMON)
-CFLAGS += -Wall -gdwarf-2 -std=gnu99 -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -DNIMH
-CFLAGS += -MD -MP -MT $(*F).o -MF dep/$(@F).d 
+CFLAGS += -gdwarf-2 -std=gnu99 -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -ffunction-sections
+CFLAGS += -Wall -Wstrict-prototypes -Wundef -Wa,-adhlns=./$(*F).lst
+CFLAGS += -MMD -MP -MF dep/$(@F).d  
+CFLAGS += -DNIMH
 
 ## Assembly specific flags
 ASMFLAGS = $(COMMON)
@@ -23,7 +25,7 @@ ASMFLAGS += -x assembler-with-cpp -Wa,-gdwarf2
 
 ## Linker flags
 LDFLAGS = $(COMMON)
-LDFLAGS +=  -Wl,-Map=$(PROJECT).map -Wl,--relax
+LDFLAGS +=  -Wl,-Map=$(PROJECT).map,--cref -Wl,-gc-sections -Wl,-relax
 
 
 ## Intel Hex file production flags
@@ -100,7 +102,7 @@ size: ${TARGET}
 ## Clean target
 .PHONY: clean
 clean:
-	-rm -rf $(OBJECTS) $(PROJECT).elf dep $(PROJECT).hex $(PROJECT).eep $(PROJECT).lss $(PROJECT).map
+	-rm -rf $(OBJECTS) $(PROJECT).elf dep $(PROJECT).hex $(PROJECT).eep $(PROJECT).lss $(PROJECT).map *.lst
 
 
 ## Other dependencies