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