duemilanove, grove: Keep ROM image within limits

While the atmega32p rom holds 32kB, the upper 512B hold the boot loader, so we need to make sure the image fits within the remaining space. Signed-off-by: Keith Packard <keithp@keithp.com>
keith-packard · Sep 27, 2021 · 5b2d578 · 5b2d578
1 parent 60a1543
commit 5b2d578
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diff --git a/ports/duemilanove/Makefile b/ports/duemilanove/Makefile
@@ -56,6 +56,7 @@ OPT=-Os -frename-registers -funsigned-char -fno-jump-tables -mcall-prologues
 CFLAGS=$(OPT) -DF_CPU=16000000UL -mmcu=atmega328p -I. -I$(SNEK_LOCAL_VPATH) -g $(SNEK_CFLAGS) -Waddr-space-convert
 LDFLAGS=$(SNEK_LDFLAGS) \
 	-Wl,-uvfprintf -lprintf_flt -lm \
+	-Wl,--defsym -Wl,__TEXT_REGION_LENGTH__=0x7e00 \
 	-Wl,-Map=$(MAP)
 
 all:: $(HEX) snek-$(BOARD)-install snek-$(BOARD)-install.1

diff --git a/ports/grove/Makefile b/ports/grove/Makefile
@@ -54,6 +54,7 @@ OPT=-Os -frename-registers -funsigned-char -fno-jump-tables -mcall-prologues
 CFLAGS=$(OPT) -DF_CPU=16000000UL -mmcu=atmega328p -I. -I$(SNEK_LOCAL_VPATH) -g $(SNEK_CFLAGS) -Waddr-space-convert
 LDFLAGS=$(SNEK_LDFLAGS) \
 	-Wl,-uvfprintf -lprintf_flt -lm \
+	-Wl,--defsym -Wl,__TEXT_REGION_LENGTH__=0x7e00 \
 	-Wl,-Map=$(MAP)
 
 all: $(HEX) snek-grove-install