From 76f09d7dd00f84bf69f7b83983c3b4843223f616 Mon Sep 17 00:00:00 2001 From: rsc Date: Tue, 28 Aug 2007 04:20:40 +0000 Subject: [PATCH] clean up Makefile; add wc --- Makefile | 131 +++++++++++++++++++++++-------------------------------- wc.c | 54 +++++++++++++++++++++++ 2 files changed, 108 insertions(+), 77 deletions(-) create mode 100644 wc.c diff --git a/Makefile b/Makefile index 7e05cfc..d7645b1 100644 --- a/Makefile +++ b/Makefile @@ -1,10 +1,15 @@ OBJS = \ + 8253pit.o\ + bio.o\ console.o\ + exec.o\ file.o\ + fs.o\ ide.o\ - kalloc.o\ - lapic.o\ ioapic.o\ + kalloc.o\ + kbd.o\ + lapic.o\ main.o\ mp.o\ picirq.o\ @@ -19,32 +24,27 @@ OBJS = \ trapasm.o\ trap.o\ vectors.o\ - bio.o\ - fs.o\ - exec.o\ - 8253pit.o\ - kbd.o\ # Cross-compiling (e.g., on Mac OS X) -#TOOLPREFIX = i386-jos-elf- +TOOLPREFIX = i386-jos-elf- # Using native tools (e.g., on X86 Linux) -TOOLPREFIX = +#TOOLPREFIX = CC = $(TOOLPREFIX)gcc +AS = $(TOOLPREFIX)gas LD = $(TOOLPREFIX)ld OBJCOPY = $(TOOLPREFIX)objcopy OBJDUMP = $(TOOLPREFIX)objdump -# On newer gcc you may need to add -fno-stack-protector to $(CFLAGS) -CFLAGS = -fno-builtin -O2 -Wall -MD -ggdb -fno-stack-protector -AS = $(TOOLPREFIX)gas +CFLAGS = -fno-builtin -O2 -Wall -MD -ggdb +CFLAGS += $(shell $(CC) -fno-stack-protector -E -x c /dev/null >/dev/null 2>&1 && echo -fno-stack-protector) -xv6.img : bootblock kernel fs.img +xv6.img: bootblock kernel fs.img dd if=/dev/zero of=xv6.img count=10000 dd if=bootblock of=xv6.img conv=notrunc dd if=kernel of=xv6.img seek=1 conv=notrunc -bootblock : bootasm.S bootmain.c +bootblock: bootasm.S bootmain.c $(CC) -O -nostdinc -I. -c bootmain.c $(CC) -nostdinc -I. -c bootasm.S $(LD) -N -e start -Ttext 0x7C00 -o bootblock.o bootasm.o bootmain.o @@ -52,71 +52,35 @@ bootblock : bootasm.S bootmain.c $(OBJCOPY) -S -O binary bootblock.o bootblock ./sign.pl bootblock -kernel : $(OBJS) bootother.S initcode.S - $(CC) -nostdinc -I. -c bootother.S +bootother: bootother.S + $(CC) -nostdinc -I. -c $*.S $(LD) -N -e start -Ttext 0x7000 -o bootother.out bootother.o $(OBJCOPY) -S -O binary bootother.out bootother $(OBJDUMP) -S bootother.o > bootother.asm - $(CC) -nostdinc -I. -c initcode.S + +initcode: initcode.S + $(CC) -nostdinc -I. -c $*.S $(LD) -N -e start -Ttext 0 -o initcode.out initcode.o $(OBJCOPY) -S -O binary initcode.out initcode $(OBJDUMP) -S initcode.o > initcode.asm + +kernel: $(OBJS) bootother initcode $(LD) -Ttext 0x100000 -e main -o kernel $(OBJS) -b binary initcode bootother $(OBJDUMP) -S kernel > kernel.asm - $(OBJDUMP) -t kernel | awk '/SYMBOL TABLE/ { go=1; next } go {print $$1, $$NF}' >kernel.sym + $(OBJDUMP) -t kernel | sed '1,/SYMBOL TABLE/d; s/ .* //' > kernel.sym tags: $(OBJS) bootother.S _init etags *.S *.c -vectors.S : vectors.pl +vectors.S: vectors.pl perl vectors.pl > vectors.S ULIB = ulib.o usys.o printf.o umalloc.o -_usertests : usertests.o $(ULIB) - $(LD) -N -e main -Ttext 0 -o _usertests usertests.o $(ULIB) - $(OBJDUMP) -S _usertests > usertests.asm - -_echo : echo.o $(ULIB) - $(LD) -N -e main -Ttext 0 -o _echo echo.o $(ULIB) - $(OBJDUMP) -S _echo > echo.asm - -_cat : cat.o $(ULIB) - $(LD) -N -e main -Ttext 0 -o _cat cat.o $(ULIB) - $(OBJDUMP) -S _cat > cat.asm - -_init : init.o $(ULIB) - $(LD) -N -e main -Ttext 0 -o _init init.o $(ULIB) - $(OBJDUMP) -S _init > init.asm - $(OBJDUMP) -t _init | awk '/SYMBOL TABLE/ { go=1; next } go {print $$1, $$NF}' >init.sym - -_kill : kill.o $(ULIB) - $(LD) -N -e main -Ttext 0 -o _kill kill.o $(ULIB) - $(OBJDUMP) -S _kill > kill.asm - -_ls : ls.o $(ULIB) - $(LD) -N -e main -Ttext 0 -o _ls ls.o $(ULIB) - $(OBJDUMP) -S _ls > ls.asm - -_mkdir : mkdir.o $(ULIB) - $(LD) -N -e main -Ttext 0 -o _mkdir mkdir.o $(ULIB) - $(OBJDUMP) -S _mkdir > mkdir.asm - -_rm : rm.o $(ULIB) - $(LD) -N -e main -Ttext 0 -o _rm rm.o $(ULIB) - $(OBJDUMP) -S _rm > rm.asm - -_ln : ln.o $(ULIB) - $(LD) -N -e main -Ttext 0 -o _ln ln.o $(ULIB) - $(OBJDUMP) -S _ln > ln.asm - -_sh : sh.o $(ULIB) - $(LD) -N -e main -Ttext 0 -o _sh sh.o $(ULIB) - $(OBJDUMP) -S _sh > sh.asm - -_zombie: zombie.o $(ULIB) - $(LD) -N -e main -Ttext 0 -o _zombie zombie.o $(ULIB) - $(OBJDUMP) -S _zombie > zombie.asm +_%: %.o $(ULIB) + $(LD) -N -e main -Ttext 0 -o $@ $^ + $(OBJDUMP) -S $@ > $*.asm + $(OBJDUMP) -t $@ | sed '1,/SYMBOL TABLE/d; s/ .* //' > $*.sym _forktest: forktest.o $(ULIB) # forktest has less library code linked in - needs to be small @@ -124,18 +88,31 @@ _forktest: forktest.o $(ULIB) $(LD) -N -e main -Ttext 0 -o _forktest forktest.o ulib.o usys.o $(OBJDUMP) -S _forktest > forktest.asm -mkfs : mkfs.c fs.h - cc -o mkfs mkfs.c +mkfs: mkfs.c fs.h + gcc -Wall -o mkfs mkfs.c -UPROGS=_usertests _echo _cat _init _kill _ln _ls _mkdir _rm _sh _zombie _forktest -fs.img : mkfs README $(UPROGS) +UPROGS=\ + _cat\ + _forktest\ + _init\ + _kill\ + _ln\ + _ls\ + _mkdir\ + _rm\ + _sh\ + _usertests\ + _wc\ + _zombie\ + +fs.img: mkfs README $(UPROGS) ./mkfs fs.img README $(UPROGS) -include *.d -clean : +clean: rm -f *.ps *.tex *.dvi *.idx *.aux *.log *.ind *.ilg \ - *.o *.d *.asm vectors.S parport.out \ + *.o *.d *.asm *.sym vectors.S parport.out \ bootblock kernel xv6.img fs.img mkfs \ $(UPROGS) @@ -153,10 +130,10 @@ PRINT = \ console.c\ string.c\ -xv6.pdf : $(PRINT) +xv6.pdf: $(PRINT) ./runoff -print : xv6.pdf +print: xv6.pdf # run in emulators @@ -164,7 +141,7 @@ bochs : fs.img xv6.img if [ ! -e .bochsrc ]; then ln -s dot-bochsrc .bochsrc; fi bochs -q -qemu : fs.img xv6.img +qemu: fs.img xv6.img qemu -parallel stdio -hdb fs.img xv6.img # CUT HERE @@ -172,7 +149,7 @@ qemu : fs.img xv6.img # after running make dist, probably want to # rename it to rev0 or rev1 or so on and then # check in that version. -dist : +dist: rm -rf dist mkdir dist for i in *.c *.h *.S; \ @@ -182,7 +159,7 @@ dist : sed '/CUT HERE/,$$d' Makefile >dist/Makefile cp README dot-bochsrc *.pl toc.* runoff runoff1 runoff.list dist -dist-test : +dist-test: rm -rf dist-test mkdir dist-test cp dist/* dist-test @@ -190,11 +167,11 @@ dist-test : cd dist-test; ../m bochs || true cd dist-test; ../m qemu -# update this rule (change rev0) when it is time to +# update this rule (change rev1) when it is time to # make a new revision. -tar : +tar: rm -rf /tmp/xv6 mkdir -p /tmp/xv6 cp dist/* /tmp/xv6 - (cd /tmp; tar cf - xv6) | gzip >xv6-rev0.tar.gz + (cd /tmp; tar cf - xv6) | gzip >xv6-rev1.tar.gz diff --git a/wc.c b/wc.c new file mode 100644 index 0000000..eb25e92 --- /dev/null +++ b/wc.c @@ -0,0 +1,54 @@ +#include "types.h" +#include "stat.h" +#include "user.h" + +char buf[512]; + +void +wc(int fd, char *name) +{ + int i, n; + int l, w, c, inword; + + l = w = c = 0; + inword = 0; + while((n = read(fd, buf, sizeof(buf))) > 0){ + for(i=0; i