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55e06c1edf
Makefile.IMA: use ld -gc-collect on gc -combine result (by using trylink script). Saves ~3k.
186 lines
5.5 KiB
Makefile
186 lines
5.5 KiB
Makefile
# This is completely unsupported.
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# Fix COMBINED_COMPILE upstream (in the Kbuild) and propagate
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# the changes back
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srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR))
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objtree := $(CURDIR)
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src := $(srctree)
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obj := $(objtree)
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# Look for make include files relative to root of kernel src
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MAKEFLAGS += --include-dir=$(srctree)
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default: busybox
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ifndef HOSTCC
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HOSTCC = cc
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endif
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AS = $(CROSS_COMPILE)as
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CC = $(CROSS_COMPILE)gcc
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LD = $(CC) -nostdlib
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CPP = $(CC) -E
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AR = $(CROSS_COMPILE)ar
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NM = $(CROSS_COMPILE)nm
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STRIP = $(CROSS_COMPILE)strip
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OBJCOPY = $(CROSS_COMPILE)objcopy
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OBJDUMP = $(CROSS_COMPILE)objdump
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CFLAGS := $(CFLAGS)
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CPPFLAGS+= -D"KBUILD_STR(s)=\#s" #-Q
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include .config
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# We need some generic definitions
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include $(srctree)/scripts/Kbuild.include
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include Makefile.flags
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ifdef CONFIG_FEATURE_COMPRESS_USAGE
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usage_stuff = include/usage_compressed.h
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endif
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ifndef BB_VER
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BB_VER:=""
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endif
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WHOLE_PROGRAM:=$(call cc-option,-fwhole-program,)
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# pull in the config stuff
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lib-all-y := applets/applets.o
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lib-y:=
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include procps/Kbuild
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lib-all-y += $(patsubst %,procps/%,$(sort $(lib-y)))
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lib-y:=
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include networking/Kbuild
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lib-all-y += $(patsubst %,networking/%,$(sort $(lib-y)))
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lib-y:=
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include networking/udhcp/Kbuild
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lib-all-y += $(patsubst %,networking/udhcp/%,$(sort $(lib-y)))
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lib-y:=
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include networking/libiproute/Kbuild
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lib-all-y += $(patsubst %,networking/libiproute/%,$(sort $(lib-y)))
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lib-y:=
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include loginutils/Kbuild
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lib-all-y += $(patsubst %,loginutils/%,$(sort $(lib-y)))
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lib-y:=
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include archival/Kbuild
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lib-all-y += $(patsubst %,archival/%,$(sort $(lib-y)))
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lib-y:=
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include archival/libunarchive/Kbuild
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lib-all-y += $(patsubst %,archival/libunarchive/%,$(sort $(lib-y)))
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lib-y:=
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include applets/Kbuild
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lib-all-y += $(patsubst %,applets/%,$(sort $(lib-y)))
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lib-y:=
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include e2fsprogs/Kbuild
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lib-all-y += $(patsubst %,e2fsprogs/%,$(sort $(lib-y)))
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lib-y:=
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#include e2fsprogs/old_e2fsprogs/Kbuild
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#lib-all-y += $(patsubst %,e2fsprogs/old_e2fsprogs/%,$(sort $(lib-y)))
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#lib-y:=
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#include e2fsprogs/old_e2fsprogs/ext2fs/Kbuild
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#lib-all-y += $(patsubst %,e2fsprogs/old_e2fsprogs/ext2fs/%,$(sort $(lib-y)))
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#lib-y:=
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#include e2fsprogs/old_e2fsprogs/blkid/Kbuild
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#lib-all-y += $(patsubst %,e2fsprogs/old_e2fsprogs/blkid/%,$(sort $(lib-y)))
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#lib-y:=
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#include e2fsprogs/old_e2fsprogs/uuid/Kbuild
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#lib-all-y += $(patsubst %,e2fsprogs/old_e2fsprogs/uuid/%,$(sort $(lib-y)))
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#lib-y:=
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#include e2fsprogs/old_e2fsprogs/e2p/Kbuild
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#lib-all-y += $(patsubst %,e2fsprogs/old_e2fsprogs/e2p/%,$(sort $(lib-y)))
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#lib-y:=
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include debianutils/Kbuild
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lib-all-y += $(patsubst %,debianutils/%,$(sort $(lib-y)))
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lib-y:=
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include runit/Kbuild
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lib-all-y += $(patsubst %,runit/%,$(sort $(lib-y)))
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lib-y:=
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include modutils/Kbuild
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lib-all-y += $(patsubst %,modutils/%,$(sort $(lib-y)))
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lib-y:=
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include miscutils/Kbuild
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lib-all-y += $(patsubst %,miscutils/%,$(sort $(lib-y)))
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lib-y:=
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include coreutils/libcoreutils/Kbuild
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lib-all-y += $(patsubst %,coreutils/libcoreutils/%,$(sort $(lib-y)))
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lib-y:=
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include coreutils/Kbuild
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lib-all-y += $(patsubst %,coreutils/%,$(sort $(lib-y)))
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lib-y:=
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include sysklogd/Kbuild
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lib-all-y += $(patsubst %,sysklogd/%,$(sort $(lib-y)))
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lib-y:=
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include shell/Kbuild
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lib-all-y += $(patsubst %,shell/%,$(sort $(lib-y)))
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lib-y:=
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include console-tools/Kbuild
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lib-all-y += $(patsubst %,console-tools/%,$(sort $(lib-y)))
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lib-y:=
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include findutils/Kbuild
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lib-all-y += $(patsubst %,findutils/%,$(sort $(lib-y)))
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lib-y:=
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include util-linux/Kbuild
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lib-all-y += $(patsubst %,util-linux/%,$(sort $(lib-y)))
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lib-y:=
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include util-linux/volume_id/Kbuild
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lib-all-y += $(patsubst %,util-linux/volume_id/%,$(sort $(lib-y)))
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lib-y:=
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include init/Kbuild
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lib-all-y += $(patsubst %,init/%,$(sort $(lib-y)))
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lib-y:=
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include libpwdgrp/Kbuild
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lib-all-y += $(patsubst %,libpwdgrp/%,$(sort $(lib-y)))
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lib-y:=
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include editors/Kbuild
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lib-all-y += $(patsubst %,editors/%,$(sort $(lib-y)))
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lib-y:=
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include printutils/Kbuild
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lib-all-y += $(patsubst %,printutils/%,$(sort $(lib-y)))
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lib-y:=
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include selinux/Kbuild
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lib-all-y += $(patsubst %,selinux/%,$(sort $(lib-y)))
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lib-y:=
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include scripts/Kbuild
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lib-all-y += $(patsubst %,scripts/%,$(sort $(lib-y)))
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lib-y:=
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include libbb/Kbuild
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lib-all-y += $(patsubst %,libbb/%,$(sort $(lib-y)))
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lib-y:=
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comma:=,
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busybox_unstripped.o: $(usage_stuff) include/applet_tables.h include/autoconf.h
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$(CC) $(CPPFLAGS) $(CFLAGS) $(EXTRA_CFLAGS) \
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$(patsubst %,-Wl$(comma)%,$(LDFLAGS) $(EXTRA_LDFLAGS)) \
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-DGCC_COMBINE=1 \
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--combine $(WHOLE_PROGRAM) \
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-funit-at-a-time -Wno-error -std=gnu99 \
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-c -o busybox_unstripped.o \
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$(lib-all-y:.o=.c)
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busybox: busybox_unstripped.o
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$(srctree)/scripts/trylink \
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busybox_unstripped \
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"$(CC)" \
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"$(CFLAGS)" \
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"$(LDFLAGS)" \
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"busybox_unstripped.o" \
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"" \
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"crypt m"
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cp -f $(@)_unstripped $@
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-$(STRIP) -s -R .note -R .comment -R .version $@
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# If .config is newer than include/autoconf.h, someone tinkered
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# with it and forgot to run make oldconfig.
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include/autoconf.h: .config
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$(MAKE) -f $(srctree)/Makefile silentoldconfig
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applets/usage: include/autoconf.h
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$(HOSTCC) -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -I$(srctree)/include -o applets/usage applets/usage.c
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applets/applet_tables: include/autoconf.h
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$(HOSTCC) -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -I$(srctree)/include -o applets/applet_tables applets/applet_tables.c
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include/usage_compressed.h: $(srctree)/include/usage.h applets/usage
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$(srctree)/applets/usage_compressed include/usage_compressed.h applets
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include/applet_tables.h: $(srctree)/include/applets.h
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applets/applet_tables include/applet_tables.h
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