55e06c1ed
Denis Vlasenko
2008-04-12
Subject
Makefile.IMA: generate autoconf.h if needed Makefile.IMA: use ld -gc-collect on gc -combine result (by using trylink script). Saves ~3k.
Binary
No binary (build failed)
Architecture & Compiler Flags
—
Build Log
(log yok)
Commit Diff GitHub →
scripts/Makefile.IMA+20 -5
| @@ -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 | |