52 lines
1.2 KiB
Makefile
52 lines
1.2 KiB
Makefile
|
# $Id:$
|
||
|
|
|
||
|
|
M4?= m4
|
||
|
|
|
||
|
|
.if exists(${.OBJDIR}/../btx)
|
||
|
|
BTX= ${.OBJDIR}/../btx
|
||
|
|
.else
|
||
|
|
BTX= ${.CURDIR}/../btx
|
||
|
|
.endif
|
||
|
|
|
||
|
|
ORG1= 0x7c00
|
||
|
|
ORG2= 0x1000
|
||
|
|
|
||
|
|
CFLAGS= -elf -I${BTX}/lib -I. -fno-builtin \
|
||
|
|
-O2 -malign-functions=0 -malign-jumps=0 -malign-loops=0 -mrtd \
|
||
|
|
-Wall -Waggregate-return -Wbad-function-cast -Wcast-align \
|
||
|
|
-Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
|
||
|
|
-Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings
|
||
|
|
|
||
|
|
LDFLAGS=-nostdlib -static -N
|
||
|
|
|
||
|
|
all: boot1 boot2
|
||
|
|
|
||
|
|
boot1: boot1.out
|
||
|
|
/usr/libexec/elf/objcopy -S -O binary boot1.out ${.TARGET}
|
||
|
|
|
||
|
|
boot1.out: boot1.o
|
||
|
|
${LD} ${LDFLAGS} -e start -Ttext ${ORG1} -o ${.TARGET} boot1.o
|
||
|
|
|
||
|
|
boot1.o: boot1.m4 boot1.s
|
||
|
|
${M4} boot1.m4 boot1.s | ${AS} ${AFLAGS} -o ${.TARGET}
|
||
|
|
|
||
|
|
boot2: boot2.ldr boot2.bin
|
||
|
|
btxld -v -E ${ORG2} -f bin -b ${BTX}/btx/btx -l boot2.ldr \
|
||
|
|
-o ${.TARGET} -P 1 boot2.bin
|
||
|
|
@ls -l boot2 | awk '{ x = 7680 - $$5; print x " bytes free"; \
|
||
|
|
if (x < 0) exit 1 }'
|
||
|
|
|
||
|
|
boot2.ldr:
|
||
|
|
dd if=/dev/zero of=${.TARGET} bs=512 count=1 2>/dev/null
|
||
|
|
|
||
|
|
boot2.bin: boot2.out
|
||
|
|
/usr/libexec/elf/objcopy -S -O binary boot2.out ${.TARGET}
|
||
|
|
|
||
|
|
boot2.out: boot2.o
|
||
|
|
${LD} ${LDFLAGS} -Ttext ${ORG2} -o ${.TARGET} \
|
||
|
|
${BTX}/lib/crt0.o boot2.o
|
||
|
|
|
||
|
|
clean:
|
||
|
|
rm -f boot1 boot1.out boot1.o boot2 boot2.ldr boot2.bin \
|
||
|
|
boot2.out boot2.o
|