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Annotation of dietlibc/Makefile, revision 1.14

1.1       cvs         1: all: start.o dietlibc.a elftrunc
                      2: 
                      3: ARCH=$(shell uname -m | sed 's/i[4-9]86/i386/')
                      4: 
                      5: CFLAGS=-pipe
                      6: CROSS=
                      7: 
1.9       fefe        8: VPATH=lib:libstdio:libugly:libcruft:syscalls.c
1.1       cvs         9: 
                     10: SYSCALLOBJ=$(patsubst syscalls.s/%.S,%.o,$(wildcard syscalls.s/*.S))
                     11: 
                     12: LIBOBJ=$(patsubst lib/%.c,%.o,$(wildcard lib/*.c))
1.5       fefe       13: LIBUGLYOBJ=$(patsubst libugly/%.c,%.o,$(wildcard libugly/*.c))
                     14: LIBSTDIOOBJ=$(patsubst libstdio/%.c,%.o,$(wildcard libstdio/*.c))
1.9       fefe       15: LIBCRUFTOBJ=$(patsubst libcruft/%.c,%.o,$(wildcard libcruft/*.c))
1.1       cvs        16: 
                     17: include $(ARCH)/Makefile.add
                     18: 
                     19: ifeq ($(CFLAGS),-pipe)
                     20: CFLAGS+=-O -fomit-frame-pointer
                     21: endif
                     22: 
1.13      fefe       23: #CFLAGS = -g
1.1       cvs        24: CFLAGS += -Wall
                     25: 
1.14    ! fefe       26: PWD=$(shell pwd)
        !            27: 
1.1       cvs        28: .SUFFIXES:
                     29: .SUFFIXES: .S .c
                     30: 
1.2       olaf       31: % :: %,v
1.1       cvs        32: 
                     33: %.o: %.S
                     34:        $(CROSS)gcc -I. -Iinclude $(CFLAGS) -c $<
                     35: 
                     36: %.o: %.c
                     37:        $(CROSS)gcc -I. -Iinclude $(CFLAGS) -c $<
                     38: #      $(CROSS)strip -x -R .comment -R .note $@
                     39: 
1.5       fefe       40: DIETLIBC_OBJ = $(SYSCALLOBJ) $(LIBOBJ) $(LIBSTDIOOBJ) $(LIBUGLYOBJ) \
1.9       fefe       41: $(LIBCRUFTOBJ) __longjmp.o setjmp.o unified.o mmap.o clone.o
1.1       cvs        42: 
                     43: dietlibc.a: $(DIETLIBC_OBJ) start.o
                     44:        $(CROSS)ar cru dietlibc.a $(DIETLIBC_OBJ)
                     45: 
                     46: libdietc.so: dietlibc.a
                     47:        $(CROSS)ld -whole-archive -shared -o $@ $^
                     48: 
                     49: $(SYSCALLOBJ): syscalls.h
                     50: 
                     51: elftrunc: contrib/elftrunc.c start.o dietlibc.a
1.4       fefe       52:        $(CROSS)gcc -Iinclude $(CFLAGS) -nostdlib -o $@ $^
1.1       cvs        53: 
                     54: djb: compile load
                     55: 
                     56: compile:
1.14    ! fefe       57:        echo 'exec gcc $(CFLAGS) -I$(PWD)/include -c $${1+"$$@"}' > $@
1.1       cvs        58:        chmod 755 $@
                     59: 
                     60: load:
1.14    ! fefe       61:        echo 'main="$$1"; shift; exec gcc -nostdlib -o "$$main" $(PWD)/start.o "$$main".o $${1+"$$@"} $(PWD)/dietlibc.a -lgcc'  > $@
1.1       cvs        62:        chmod 755 $@
                     63: 
                     64: clean:
                     65:        rm -f *.o *.a t t1 compile load elftrunc exports mapfile libdietc.so
                     66:        $(MAKE) -C examples clean
                     67: 
                     68: tar: clean
1.11      fefe       69:        rm -f armv4l
1.3       fefe       70:        ln -sf arm armv4l
1.8       fefe       71:        cd ..; tar cvvf dietlibc.tar.bz2 dietlibc --use=bzip2 --exclude CVS
1.1       cvs        72: 
                     73: exports: dietlibc.a
                     74:        nm -g dietlibc.a | grep -w T | awk '{ print $$3 }' | sort -u > exports
                     75: 
                     76: .PHONY: t t1
                     77: t:
                     78:        $(CROSS)gcc -g $(CFLAGS) -fno-builtin -nostdlib -Iinclude -o t t.c start.o dietlibc.a -lgcc -Wl,-Map,mapfile
                     79: 
                     80: t1:
                     81:        $(CROSS)gcc -g -o t1 t.c
                     82: 
                     83: install:
1.10      fefe       84:        cp start.o $(INSTALLPREFIX)$(prefix)/lib/dietstart.o
                     85:        cp dietlibc.a $(INSTALLPREFIX)$(prefix)/lib/libdietc.a
1.1       cvs        86: 
                     87: .PHONY: sparc ppc mips arm alpha i386
                     88: 
                     89: sparc ppc alpha i386:
                     90:        $(MAKE) ARCH=$@ CROSS=$@-linux- all t libdietc.so
                     91: 
                     92: mips arm:
                     93:        $(MAKE) ARCH=$@ CROSS=$@-linux-gnu- all t libdietc.so
                     94: