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authorGravatar Denis Vlasenko <vda.linux@googlemail.com>2008-04-12 13:46:39 +0000
committerGravatar Denis Vlasenko <vda.linux@googlemail.com>2008-04-12 13:46:39 +0000
commit55e06c1edf259283e1c7d02ad90be1a5c49c7404 (patch)
tree7329f3b0ac6d4864ff687ac3108e8d71a4ea3434 /scripts
parenteecd588c53066fa5f95bc1ec2249028e0efcc8f3 (diff)
downloadbusybox-55e06c1edf259283e1c7d02ad90be1a5c49c7404.tar.gz
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Makefile.IMA: generate autoconf.h if needed
Makefile.IMA: use ld -gc-collect on gc -combine result (by using trylink script). Saves ~3k.
Diffstat (limited to 'scripts')
-rw-r--r--scripts/Makefile.IMA25
1 files changed, 20 insertions, 5 deletions
diff --git a/scripts/Makefile.IMA b/scripts/Makefile.IMA
index 27163ab36..29399178e 100644
--- a/scripts/Makefile.IMA
+++ b/scripts/Makefile.IMA
@@ -146,21 +146,36 @@ lib-all-y += $(patsubst %,libbb/%,$(sort $(lib-y)))
lib-y:=
comma:=,
-busybox: $(usage_stuff) include/applet_tables.h
+busybox_unstripped.o: $(usage_stuff) include/applet_tables.h include/autoconf.h
$(CC) $(CPPFLAGS) $(CFLAGS) $(EXTRA_CFLAGS) \
$(patsubst %,-Wl$(comma)%,$(LDFLAGS) $(EXTRA_LDFLAGS)) \
-DGCC_COMBINE=1 \
--combine $(WHOLE_PROGRAM) \
-funit-at-a-time -Wno-error -std=gnu99 \
- -o $(@)_unstripped $(lib-all-y:.o=.c) \
- -Wl,--start-group -lcrypt -lm -Wl,--end-group
+ -c -o busybox_unstripped.o \
+ $(lib-all-y:.o=.c)
+
+busybox: busybox_unstripped.o
+ $(srctree)/scripts/trylink \
+ busybox_unstripped \
+ "$(CC)" \
+ "$(CFLAGS)" \
+ "$(LDFLAGS)" \
+ "busybox_unstripped.o" \
+ "" \
+ "crypt m"
cp -f $(@)_unstripped $@
-$(STRIP) -s -R .note -R .comment -R .version $@
-applets/usage:
+# If .config is newer than include/autoconf.h, someone tinkered
+# with it and forgot to run make oldconfig.
+include/autoconf.h: .config
+ $(MAKE) -f $(srctree)/Makefile silentoldconfig
+
+applets/usage: include/autoconf.h
$(HOSTCC) -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -I$(srctree)/include -o applets/usage applets/usage.c
-applets/applet_tables:
+applets/applet_tables: include/autoconf.h
$(HOSTCC) -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -I$(srctree)/include -o applets/applet_tables applets/applet_tables.c
include/usage_compressed.h: $(srctree)/include/usage.h applets/usage