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