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