Diff markup
001 001
002 002
003 003
004 004
005 005
006 006
007 007
008 008
009 009
010 010
011 011
012 012
013 013
014 014
015 015
016 016
017 017
018 CC=gcc 018 CC=gcc
019 AR=ar 019 AR=ar
>> 020 CP=cp
>> 021 STRIP=strip
020 OBJCOPY=objcopy 022 OBJCOPY=objcopy
021 CFLAGS = -Wall -nostdinc -ffreestanding -I. - !! 023 CFLAGS = -Wall -nostdinc -ffreestanding -I. -I.. -O
022 LIBGCC := $(shell $(CC) -print-libgcc-file-nam !! 024 LIBGCC = $(shell $(CC) -print-libgcc-file-name)
023 LDFLAGS = -Wl,--warn-common -nostdlib -Wl,-Tld 025 LDFLAGS = -Wl,--warn-common -nostdlib -Wl,-Tldscript.lds
024 026
025 027
026 all: userprogs.kimg 028 all: userprogs.kimg
027 029
028 -include .mkvars 030 -include .mkvars
029 031
030 PROGS := init myprog1 myprog2 myprog3 myprog4 032 PROGS := init myprog1 myprog2 myprog3 myprog4 myprog5 myprog6 \
031 myprog7 myprog8 myprog9 myprog10 mypr 033 myprog7 myprog8 myprog9 myprog10 myprog11 myprog12 \
032 myprog13 myprog14 banner !! 034 myprog13 myprog14 banner fstest
033 035
034 # Build dependencies of the programs 036 # Build dependencies of the programs
>> 037 fstest: fstest_utils.o
035 $(PROGS) : % : %.o crt.o libc.a 038 $(PROGS) : % : %.o crt.o libc.a
036 039
037 PWD := $(shell pwd) 040 PWD := $(shell pwd)
038 041
039 042
040 $(PROGS): 043 $(PROGS):
041 $(CC) -static $(LDFLAGS) -o $@ $^ $(LI 044 $(CC) -static $(LDFLAGS) -o $@ $^ $(LIBGCC)
042 045
043 046
044 libc.a: libc.o string.o stdarg.o debug.o 047 libc.a: libc.o string.o stdarg.o debug.o
045 048
046 049
047 userprogs.kimg: $(PROGS) 050 userprogs.kimg: $(PROGS)
048 @echo "# Generating ELF images for inc 051 @echo "# Generating ELF images for inclusion into the kernel image: $@"
049 @echo "SECTIONS { .userprogs . : { " > 052 @echo "SECTIONS { .userprogs . : { " > .userprogs.lds
050 @i=0 ; 053 @i=0 ; \
051 for f in $^ ; do 054 for f in $^ ; do \
052 i=`expr $$i + 1` ; 055 i=`expr $$i + 1` ; \
053 echo "extern char _begin_userprog$$ 056 echo "extern char _begin_userprog$$i, _end_userprog$$i;" \
054 > .userprog$$i.c ; 057 > .userprog$$i.c ; \
055 echo "char *_userprog"$$i"_entry[]" 058 echo "char *_userprog"$$i"_entry[]" >> .userprog$$i.c ; \
056 echo " __attribute__((section(\".u 059 echo " __attribute__((section(\".userprogs_table\")))" \
057 >> .userprog$$i.c ; 060 >> .userprog$$i.c ; \
058 echo " = { \"$$f\", &_begin_userpr 061 echo " = { \"$$f\", &_begin_userprog$$i, &_end_userprog$$i };" \
059 >> .userprog$$i.c ; 062 >> .userprog$$i.c ; \
060 $(CC) $(CFLAGS) -c .userprog$$i.c - 063 $(CC) $(CFLAGS) -c .userprog$$i.c -o .userprog$$i.o ; \
061 $(OBJCOPY) --add-section .userprog$ !! 064 $(CP) $$f $$f.strip && $(STRIP) -sx $$f.strip ; \
>> 065 $(OBJCOPY) --add-section .userprog$$i=$$f.strip .userprog$$i.o \
062 .userprog$$i.kimg ; 066 .userprog$$i.kimg ; \
063 echo " . = ALIGN(4096);" >> .userp 067 echo " . = ALIGN(4096);" >> .userprogs.lds ; \
064 echo " _begin_userprog$$i = .;" >> 068 echo " _begin_userprog$$i = .;" >> .userprogs.lds ; \
065 echo " .userprog$$i.kimg(.userprog 069 echo " .userprog$$i.kimg(.userprog$$i);" >> .userprogs.lds ; \
066 echo " _end_userprog$$i = .;" >> . 070 echo " _end_userprog$$i = .;" >> .userprogs.lds ; \
067 echo " .userprog$$i.kimg(.rodata); 071 echo " .userprog$$i.kimg(.rodata); .userprog$$i.kimg(.data);" \
068 >> .userprogs.lds ; 072 >> .userprogs.lds ; \
069 done 073 done
070 @echo " _userprogs_table = .; *(.user 074 @echo " _userprogs_table = .; *(.userprogs_table) ; LONG(0);" \
071 >> .userprogs.lds 075 >> .userprogs.lds
072 @echo "} /DISCARD/ : { *(.text) *(.dat 076 @echo "} /DISCARD/ : { *(.text) *(.data) *(.bss) } }" \
073 >> .userprogs.lds 077 >> .userprogs.lds
074 @$(LD) -r -o $@ -T.userprogs.lds 078 @$(LD) -r -o $@ -T.userprogs.lds
075 079
076 080
077 %.a: 081 %.a:
078 $(AR) rcv $@ $^ 082 $(AR) rcv $@ $^
079 083
080 084
081 %.o: %.c 085 %.o: %.c
082 $(CC) -I$(PWD) -c $< $(CFLAGS) -o $@ 086 $(CC) -I$(PWD) -c $< $(CFLAGS) -o $@
083 087
084 088
085 %.o: %.S 089 %.o: %.S
086 $(CC) -I$(PWD) -c $< $(CFLAGS) -DASM_S 090 $(CC) -I$(PWD) -c $< $(CFLAGS) -DASM_SOURCE=1 -o $@
087 091
088 092
089 clean: 093 clean:
090 $(RM) *.o *.a *~ $(PROGS) *.kimg !! 094 $(RM) *.o *.a *~ $(PROGS) *.kimg *.strip
091 $(RM) .userprog* 095 $(RM) .userprog*