mirror of
https://github.com/topjohnwu/ndk-busybox.git
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145 lines
3.9 KiB
Makefile
145 lines
3.9 KiB
Makefile
# Makefile for busybox
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#
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# Copyright (C) 1999-2000 Erik Andersen <andersee@debian.org>
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# Copyright (C) 2000 Karl M. Hegbloom <karlheg@debian.org>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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PROG := busybox
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VERSION := 0.44
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BUILDTIME := $(shell TZ=UTC date --utc "+%Y.%m.%d-%H:%M%z")
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export VERSION
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# Set the following to `true' to make a debuggable build.
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# Leave this set to `false' for production use.
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# eg: `make DODEBUG=true tests'
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DODEBUG = true
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# If you want a static binary, turn this on.
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DOSTATIC = false
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CC = gcc
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# use '-Os' optimization if available, else use -O2
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OPTIMIZATION = $(shell if $(CC) -Os -S -o /dev/null -xc /dev/null >/dev/null 2>&1; \
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then echo "-Os"; else echo "-O2" ; fi)
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# Allow alternative stripping tools to be used...
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ifndef $(STRIPTOOL)
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STRIPTOOL = strip
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endif
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# TODO: Try compiling vs other libcs.
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# See what -nostdinc and -nostdlib do for them.
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# also try --prefix=/usr/my-libc-stuff
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# -D_GNU_SOURCE is needed because environ is used in init.c
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ifeq ($(DODEBUG),true)
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CFLAGS += -Wall -g -D_GNU_SOURCE
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LDFLAGS =
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STRIP =
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else
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CFLAGS += -Wall $(OPTIMIZATION) -fomit-frame-pointer -fno-builtin -D_GNU_SOURCE
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LDFLAGS = -s
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STRIP = $(STRIPTOOL) --remove-section=.note --remove-section=.comment $(PROG)
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#Only staticly link when _not_ debugging
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ifeq ($(DOSTATIC),true)
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LDFLAGS += --static
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endif
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endif
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ifndef $(PREFIX)
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PREFIX = `pwd`/_install
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endif
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LIBRARIES =
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OBJECTS = $(shell ./busybox.sh) busybox.o messages.o utility.o
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CFLAGS += -DBB_VER='"$(VERSION)"'
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CFLAGS += -DBB_BT='"$(BUILDTIME)"'
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ifdef BB_INIT_SCRIPT
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CFLAGS += -DINIT_SCRIPT='"$(BB_INIT_SCRIPT)"'
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endif
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# use '-ffunction-sections -fdata-sections' and '--gc-sections' if they work
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ifeq ($(shell $(CC) -ffunction-sections -fdata-sections -S \
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-o /dev/null -xc /dev/null && $(LD) --gc-sections -v >/dev/null && echo 1),1)
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CFLAGS += -ffunction-sections -fdata-sections -DFUNCTION_SECTIONS
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LDFLAGS += --gc-sections
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endif
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all: busybox busybox.links doc
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doc: docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html
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docs/BusyBox.txt: docs/busybox.pod
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@echo
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@echo BusyBox Documentation
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@echo
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pod2text docs/busybox.pod > docs/BusyBox.txt
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docs/BusyBox.1: docs/busybox.pod
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pod2man --center=BusyBox --release="version $(VERSION)" docs/busybox.pod > docs/BusyBox.1
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docs/BusyBox.html: docs/busybox.pod
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pod2html docs/busybox.pod > docs/BusyBox.html
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- rm -f pod2html*
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clean:
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busybox: $(OBJECTS)
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$(CC) $(LDFLAGS) -o $@ $^ $(LIBRARIES)
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$(STRIP)
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busybox.links: busybox.def.h
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- ./busybox.mkll | sort >$@
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regexp.o nfsmount.o cmdedit.o: %.o: %.h
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$(OBJECTS): %.o: busybox.def.h internal.h %.c Makefile
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test tests:
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cd tests && $(MAKE) all
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clean:
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- rm -f busybox.links *~ *.o core
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- rm -rf _install
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- cd tests && $(MAKE) clean
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- rm -f BusyBox.html BusyBox.1 BusyBox.txt pod2html*
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distclean: clean
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- rm -f busybox
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- cd tests && $(MAKE) distclean
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install: busybox busybox.links
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./install.sh $(PREFIX)
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dist release: distclean doc
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cd ..; \
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rm -rf busybox-$(VERSION); \
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cp -a busybox busybox-$(VERSION); \
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\
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find busybox-$(VERSION)/ -type d \
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-name CVS \
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-print \
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| xargs rm -rf; \
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\
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find busybox-$(VERSION)/ -type f \
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-name .cvsignore \
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-print \
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| xargs rm -f; \
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\
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tar -cvzf busybox-$(VERSION).tar.gz busybox-$(VERSION)/;
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