Files
RTLPlayground/Makefile
T
d00f 59c60504e7 crtbank: put the bank switching helpers in HOME
__sdcc_banked_call and __sdcc_banked_ret were assembled into GSFINAL, which
sits in the startup path: GSINIT ends exactly where GSFINAL begins, so the
processor falls into it rather than being sent there. It works today only
because this object comes after every C object on the link line, so the
LJMP to __sdcc_program_startup is laid down first and the helpers land
behind it. Reordering that line, or moving main() into another module,
would put the helper body at the fallthrough address instead, and the board
would not come up out of a build that reports nothing wrong.

SDCC's own crtbank.asm declares the area order and then puts both symbols
in HOME, so the file takes that name and that preamble as well.

GSFINAL now holds the three byte jump and nothing else. Of 401 symbols 17
change address, every one in the startup region, and between the reset
vector and 0x0094 not a byte differs, so no interrupt vector is disturbed.

Run on a SWTGW218AS: it came back after about 42 seconds reporting the new
build, with its stored configuration byte identical and every link at the
speed it had before.
2026-08-15 22:18:13 +02:00

150 lines
4.2 KiB
Makefile

VERSION=0.1.0
IMAGESIZE = 524288
DEFAULT_CONFIG_LOCATION = 454656
CONFIG_LOCATION = 458752
HTML_LOCATION = 262144
ifeq ($(origin CC),default)
CC = sdcc
endif
CC_FLAGS = -mmcs51 -I. -Ihttpd -Iuip
ASM ?= sdas8051
AFLAGS= -plosgff
SUBDIRS := tools
SUBDIRSCLEAN=$(addsuffix clean,$(SUBDIRS))
ifeq ($(MACHINE),)
MACHINE:= $(shell grep "^\s*#define MACHINE_" machine.h | sed "s/^\s*#define MACHINE_//")
else
CC_FLAGS += -DMACHINE_$(MACHINE)
endif
BUILDDIR = output/$(MACHINE)
VERSION_HEADER := version.h
GIT_VERSION := $(shell git rev-parse --short HEAD)
ifeq ($(shell git status --porcelain --untracked-files=no),)
else
GIT_VERSION := $(GIT_VERSION)-dirty
endif
VERSION_EXTENSION = v$(VERSION)-$(GIT_VERSION)
FILENAME_EXTENSION = $(VERSION_EXTENSION)-$(MACHINE)
# Deterministic build date: honor SOURCE_DATE_EPOCH, else the HEAD commit date,
# else wall-clock (no-git fallback). Keeps same-commit builds byte-identical
# (BUILD_DATE is baked into the image and covered by the trailing CRC).
SOURCE_DATE_EPOCH ?= $(shell git show -s --format=%ct HEAD 2>/dev/null)
ifeq ($(SOURCE_DATE_EPOCH),)
BUILD_DATE := $(shell date +"%Y-%m-%d %H:%M:%S")
else
BUILD_DATE := $(shell date -u -d @$(SOURCE_DATE_EPOCH) +"%Y-%m-%d %H:%M:%S" 2>/dev/null \
|| date -u -r $(SOURCE_DATE_EPOCH) +"%Y-%m-%d %H:%M:%S")
endif
all: create_build_dir $(VERSION_HEADER) $(SUBDIRS) $(BUILDDIR)/rtlplayground-$(FILENAME_EXTENSION).bin
create_build_dir:
mkdir -p "$(BUILDDIR)"
mkdir -p "$(BUILDDIR)/uip"
mkdir -p "$(BUILDDIR)/httpd"
# Keep machine.c in first position to fail immediately on invalid $MACHINE value
SRCS = \
machine.c \
cmd_editor.c \
cmd_parser.c \
dhcp.c \
html_data.c \
rtlplayground.c \
syslog.c \
udp_apps.c
# RTL837x
SRCS += \
rtl837x_bandwidth.c \
rtl837x_flash.c \
rtl837x_igmp.c \
rtl837x_init.c \
rtl837x_leds.c \
rtl837x_phy.c \
rtl837x_pins.c\
rtl837x_port.c \
rtl837x_stp.c
SRCS += \
httpd/httpd.c \
httpd/page_impl.c
SRCS += \
uip/timer.c \
uip/uip.c \
uip/uiplib.c \
uip/uip_arp.c \
uip/uip-fw.c \
uip/uip-neighbor.c \
uip/uip-split.c
OBJS = ${SRCS:%.c=$(BUILDDIR)/%.rel}
DEPS := ${SRCS:%.c=$(BUILDDIR)/%.d}
HTML := $(shell find $(html) -name '*.js' -or -name '*.html' -or -name '*.svg')
html_data.c html_data.h: $(HTML) tools/output/fileadder
tools/output/fileadder -a $(HTML_LOCATION) -s $(IMAGESIZE) -b BANK1 -d html -p html_data
$(VERSION_HEADER):
@echo "#ifndef VERSION_H" > $(VERSION_HEADER)
@echo "#define VERSION_H" >> $(VERSION_HEADER)
@echo "#define VERSION_SW \"$(VERSION_EXTENSION)\"" >> $(VERSION_HEADER)
@echo "#define BUILD_DATE \"$(BUILD_DATE)\"" >> $(VERSION_HEADER)
@echo "#endif" >> $(VERSION_HEADER)
httpd: html_data.h
$(SUBDIRS):
$(MAKE) -C $@
clean:
-rm -f html_data.c html_data.h $(VERSION_HEADER)
-if [ -d $(BUILDDIR) ]; then find $(BUILDDIR) -type f ! -name "*.bin" -delete; fi
distclean:
-rm -f html_data.c html_data.h $(VERSION_HEADER)
-rm -rf $(BUILDDIR)
$(BUILDDIR)/%.rel: %.c
$(CC) -MMD $(CC_FLAGS) -o $@ -c $<
$(BUILDDIR)/%.rel: %.asm
${ASM} ${AFLAGS} -o $@ $<
# mv -f $(addprefix $(basename $^), .lst .rel .sym) .
$(BUILDDIR)/rtlplayground.ihx: $(OBJS) $(BUILDDIR)/crtbank.rel $(BUILDDIR)/crc16.rel
$(CC) $(CC_FLAGS) -Wl-bHOME=0x00000 -Wl-bBANK1=0x14000 -Wl-bBANK2=0x24000 -Wl-r -o $@ $^
$(BUILDDIR)/rtlplayground.img: $(BUILDDIR)/rtlplayground.ihx
objcopy --input-target=ihex -O binary $< $@
$(BUILDDIR)/rtlplayground-$(FILENAME_EXTENSION).bin: $(BUILDDIR)/rtlplayground.img
if [ -e $@ ]; then rm $@; fi
tools/output/imagebuilder -i $^ $@
tools/output/fileadder -a $(DEFAULT_CONFIG_LOCATION) -s $(IMAGESIZE) -d config.txt $@
tools/output/fileadder -a $(CONFIG_LOCATION) -s $(IMAGESIZE) -d config.txt $@
tools/output/fileadder -a $(HTML_LOCATION) -s $(IMAGESIZE) -d html -p html_data -b BANK1 $@
tools/output/crc_calculator -u $@
ln -sf $(MACHINE)/rtlplayground-$(FILENAME_EXTENSION).bin output/rtlplayground.bin
.PHONY: clean all $(SUBDIRS) $(VERSION_HEADER)
.PHONY:
machine_check:
@mkdir -p $(BUILDDIR)/tmp
@set -eo pipefail; \
for MACHINE in `grep -e ' MACHINE_' machine.c | sed -e 's%^.* MACHINE_%%' -e 's%[ ]*//.*$$%%' | sort -u`; \
do \
echo "Checking $${MACHINE}"; \
$(CC) $(CC_FLAGS) -DMACHINE_$${MACHINE} -MMD -o $(BUILDDIR)/tmp/machine_check -c machine.c; \
done
@rm -rf $(BUILDDIR)/tmp
-include $(DEPS)