git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@404 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 13 insertions, 1 deletions

diff --git a/demos/ARM7-AT91SAM7X-WEB-GCC/Makefile b/demos/ARM7-AT91SAM7X-WEB-GCC/Makefile
index 77651350c..243d525f8 100644
--- a/demos/ARM7-AT91SAM7X-WEB-GCC/Makefile
+++ b/demos/ARM7-AT91SAM7X-WEB-GCC/Makefile
@@ -26,6 +26,9 @@ BIN  = $(CP) -O binary
 

 MCU  = arm7tdmi

 

+# Enable this if you want the linker to remove unused code and data

+LINK_GC = yes

+

 # List all default C defines here, like -D_DEBUG=1

 DDEFS =

 

@@ -127,6 +130,10 @@ WARN = -Wall -Wstrict-prototypes
 # End of user defines

 ##############################################################################################

 

+ifeq ($(LINK_GC),yes)

+  OPT += -ffunction-sections -fdata-sections

+endif

+

 INCDIR  = $(patsubst %,-I%,$(DINCDIR) $(UINCDIR))

 LIBDIR  = $(patsubst %,-L%,$(DLIBDIR) $(ULIBDIR))

 DEFS    = $(DDEFS) $(UDEFS)

@@ -138,10 +145,15 @@ ASMOBJS = $(ASMSRC:.s=.o)
 LIBS    = $(DLIBS) $(ULIBS)

 MCFLAGS = -mcpu=$(MCU)

 

+ODFLAGS	= -x --syms

 ASFLAGS = $(MCFLAGS) -Wa,-amhls=$(<:.s=.lst) $(ADEFS)

 CPFLAGS = $(MCFLAGS) $(OPT) $(WARN) -Wa,-alms=$(<:.c=.lst) $(DEFS)

 LDFLAGS = $(MCFLAGS) -nostartfiles -T$(LDSCRIPT) -Wl,-Map=$(PROJECT).map,--cref,--no-warn-mismatch $(LIBDIR)

-ODFLAGS	= -x --syms

+ifeq ($(LINK_GC),yes)

+  LDFLAGS = $(MCFLAGS) -nostartfiles -T$(LDSCRIPT) -Wl,-Map=$(PROJECT).map,--cref,--no-warn-mismatch,--gc-sections $(LIBDIR)

+else

+  LDFLAGS = $(MCFLAGS) -nostartfiles -T$(LDSCRIPT) -Wl,-Map=$(PROJECT).map,--cref,--no-warn-mismatch $(LIBDIR)

+endif

 

 # Thumb interwork enabled only if needed because it kills performance.

 ifneq ($(TSRC),)