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