| Sam Ravnborg | db569af | 2008-01-30 13:32:30 +0100 | [diff] [blame] | 1 | # |
| 2 | # linux/arch/x86/boot/compressed/Makefile |
| 3 | # |
| 4 | # create a compressed vmlinux image from the original vmlinux |
| 5 | # |
| Kees Cook | fb7183e | 2014-10-31 09:22:04 -0700 | [diff] [blame] | 6 | # vmlinuz is: |
| 7 | # decompression code (*.o) |
| 8 | # asm globals (piggy.S), including: |
| 9 | # vmlinux.bin.(gz|bz2|lzma|...) |
| 10 | # |
| 11 | # vmlinux.bin is: |
| 12 | # vmlinux stripped of debugging and comments |
| 13 | # vmlinux.bin.all is: |
| 14 | # vmlinux.bin + vmlinux.relocs |
| 15 | # vmlinux.bin.(gz|bz2|lzma|...) is: |
| 16 | # (see scripts/Makefile.lib size_append) |
| 17 | # compressed vmlinux.bin.all + u32 size of vmlinux.bin.all |
| Sam Ravnborg | db569af | 2008-01-30 13:32:30 +0100 | [diff] [blame] | 18 | |
| Kyungsik Lee | f9b493a | 2013-07-08 16:01:48 -0700 | [diff] [blame] | 19 | targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \ |
| 20 | vmlinux.bin.xz vmlinux.bin.lzo vmlinux.bin.lz4 |
| Sam Ravnborg | db569af | 2008-01-30 13:32:30 +0100 | [diff] [blame] | 21 | |
| 22 | KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2 |
| 23 | KBUILD_CFLAGS += -fno-strict-aliasing -fPIC |
| H. Peter Anvin | 95a38f3 | 2009-04-01 17:35:00 -0700 | [diff] [blame] | 24 | KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING |
| H. Peter Anvin | 17a2a9b | 2009-12-25 15:40:38 -0800 | [diff] [blame] | 25 | cflags-$(CONFIG_X86_32) := -march=i386 |
| Sam Ravnborg | db569af | 2008-01-30 13:32:30 +0100 | [diff] [blame] | 26 | cflags-$(CONFIG_X86_64) := -mcmodel=small |
| 27 | KBUILD_CFLAGS += $(cflags-y) |
| H. Peter Anvin | 8b3b005 | 2013-12-09 15:43:38 -0800 | [diff] [blame] | 28 | KBUILD_CFLAGS += -mno-mmx -mno-sse |
| Sam Ravnborg | db569af | 2008-01-30 13:32:30 +0100 | [diff] [blame] | 29 | KBUILD_CFLAGS += $(call cc-option,-ffreestanding) |
| 30 | KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) |
| 31 | |
| 32 | KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ |
| Peter Oberparleiter | 7bf99fb | 2009-06-17 16:28:09 -0700 | [diff] [blame] | 33 | GCOV_PROFILE := n |
| Sam Ravnborg | db569af | 2008-01-30 13:32:30 +0100 | [diff] [blame] | 34 | |
| 35 | LDFLAGS := -m elf_$(UTS_MACHINE) |
| 36 | LDFLAGS_vmlinux := -T |
| 37 | |
| H. Peter Anvin | 02a884c | 2009-05-08 17:42:16 -0700 | [diff] [blame] | 38 | hostprogs-y := mkpiggy |
| Matt Fleming | 12871c5 | 2012-02-28 13:37:22 +0000 | [diff] [blame] | 39 | HOST_EXTRACFLAGS += -I$(srctree)/tools/include |
| H. Peter Anvin | 02a884c | 2009-05-08 17:42:16 -0700 | [diff] [blame] | 40 | |
| Josh Triplett | 9a1cb47 | 2014-03-10 13:03:10 -0700 | [diff] [blame] | 41 | vmlinux-objs-y := $(obj)/vmlinux.lds $(obj)/head_$(BITS).o $(obj)/misc.o \ |
| Josh Triplett | 3afed06 | 2014-03-10 13:26:10 -0700 | [diff] [blame] | 42 | $(obj)/string.o $(obj)/cmdline.o \ |
| Josh Triplett | 9e6abd2 | 2014-03-10 13:11:26 -0700 | [diff] [blame] | 43 | $(obj)/piggy.o $(obj)/cpuflags.o |
| 44 | |
| Josh Triplett | 3afed06 | 2014-03-10 13:26:10 -0700 | [diff] [blame] | 45 | vmlinux-objs-$(CONFIG_EARLY_PRINTK) += $(obj)/early_serial_console.o |
| Josh Triplett | 9e6abd2 | 2014-03-10 13:11:26 -0700 | [diff] [blame] | 46 | vmlinux-objs-$(CONFIG_RANDOMIZE_BASE) += $(obj)/aslr.o |
| Matt Fleming | 291f363 | 2011-12-12 21:27:52 +0000 | [diff] [blame] | 47 | |
| Matthew Garrett | 9dead5b | 2012-07-26 18:00:00 -0400 | [diff] [blame] | 48 | $(obj)/eboot.o: KBUILD_CFLAGS += -fshort-wchar -mno-red-zone |
| Matthew Garrett | 9dead5b | 2012-07-26 18:00:00 -0400 | [diff] [blame] | 49 | |
| Ard Biesheuvel | 243b675 | 2014-11-05 17:00:56 +0100 | [diff] [blame] | 50 | vmlinux-objs-$(CONFIG_EFI_STUB) += $(obj)/eboot.o $(obj)/efi_stub_$(BITS).o \ |
| 51 | $(objtree)/drivers/firmware/efi/libstub/lib.a |
| Matt Fleming | 291f363 | 2011-12-12 21:27:52 +0000 | [diff] [blame] | 52 | |
| Josh Triplett | 9a1cb47 | 2014-03-10 13:03:10 -0700 | [diff] [blame] | 53 | $(obj)/vmlinux: $(vmlinux-objs-y) FORCE |
| Sam Ravnborg | db569af | 2008-01-30 13:32:30 +0100 | [diff] [blame] | 54 | $(call if_changed,ld) |
| 55 | @: |
| 56 | |
| Ian Campbell | 099e137 | 2008-02-13 20:54:58 +0000 | [diff] [blame] | 57 | OBJCOPYFLAGS_vmlinux.bin := -R .comment -S |
| Sam Ravnborg | db569af | 2008-01-30 13:32:30 +0100 | [diff] [blame] | 58 | $(obj)/vmlinux.bin: vmlinux FORCE |
| 59 | $(call if_changed,objcopy) |
| 60 | |
| Josh Triplett | 9a1cb47 | 2014-03-10 13:03:10 -0700 | [diff] [blame] | 61 | targets += $(patsubst $(obj)/%,%,$(vmlinux-objs-y)) vmlinux.bin.all vmlinux.relocs |
| Sam Ravnborg | db569af | 2008-01-30 13:32:30 +0100 | [diff] [blame] | 62 | |
| H. Peter Anvin | 6520fe5 | 2012-05-08 21:22:24 +0300 | [diff] [blame] | 63 | CMD_RELOCS = arch/x86/tools/relocs |
| Sam Ravnborg | db569af | 2008-01-30 13:32:30 +0100 | [diff] [blame] | 64 | quiet_cmd_relocs = RELOCS $@ |
| H. Peter Anvin | 6520fe5 | 2012-05-08 21:22:24 +0300 | [diff] [blame] | 65 | cmd_relocs = $(CMD_RELOCS) $< > $@;$(CMD_RELOCS) --abs-relocs $< |
| 66 | $(obj)/vmlinux.relocs: vmlinux FORCE |
| Sam Ravnborg | db569af | 2008-01-30 13:32:30 +0100 | [diff] [blame] | 67 | $(call if_changed,relocs) |
| 68 | |
| 69 | vmlinux.bin.all-y := $(obj)/vmlinux.bin |
| H. Peter Anvin | 5f11e02 | 2009-05-05 22:53:11 -0700 | [diff] [blame] | 70 | vmlinux.bin.all-$(CONFIG_X86_NEED_RELOCS) += $(obj)/vmlinux.relocs |
| Sam Ravnborg | db569af | 2008-01-30 13:32:30 +0100 | [diff] [blame] | 71 | |
| H. Peter Anvin | 5f11e02 | 2009-05-05 22:53:11 -0700 | [diff] [blame] | 72 | $(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y) FORCE |
| Sam Ravnborg | db569af | 2008-01-30 13:32:30 +0100 | [diff] [blame] | 73 | $(call if_changed,gzip) |
| H. Peter Anvin | 5f11e02 | 2009-05-05 22:53:11 -0700 | [diff] [blame] | 74 | $(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) FORCE |
| Alain Knaff | ae03c49 | 2009-01-04 22:46:17 +0100 | [diff] [blame] | 75 | $(call if_changed,bzip2) |
| H. Peter Anvin | 5f11e02 | 2009-05-05 22:53:11 -0700 | [diff] [blame] | 76 | $(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE |
| Alain Knaff | ae03c49 | 2009-01-04 22:46:17 +0100 | [diff] [blame] | 77 | $(call if_changed,lzma) |
| Lasse Collin | 3031480 | 2011-01-12 17:01:24 -0800 | [diff] [blame] | 78 | $(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y) FORCE |
| 79 | $(call if_changed,xzkern) |
| Albin Tonnerre | 1351099 | 2010-01-08 14:42:45 -0800 | [diff] [blame] | 80 | $(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) FORCE |
| 81 | $(call if_changed,lzo) |
| Kyungsik Lee | f9b493a | 2013-07-08 16:01:48 -0700 | [diff] [blame] | 82 | $(obj)/vmlinux.bin.lz4: $(vmlinux.bin.all-y) FORCE |
| 83 | $(call if_changed,lz4) |
| Sam Ravnborg | db569af | 2008-01-30 13:32:30 +0100 | [diff] [blame] | 84 | |
| H. Peter Anvin | 283ab1c | 2009-05-08 15:32:47 -0700 | [diff] [blame] | 85 | suffix-$(CONFIG_KERNEL_GZIP) := gz |
| 86 | suffix-$(CONFIG_KERNEL_BZIP2) := bz2 |
| 87 | suffix-$(CONFIG_KERNEL_LZMA) := lzma |
| Lasse Collin | 3031480 | 2011-01-12 17:01:24 -0800 | [diff] [blame] | 88 | suffix-$(CONFIG_KERNEL_XZ) := xz |
| Albin Tonnerre | 1351099 | 2010-01-08 14:42:45 -0800 | [diff] [blame] | 89 | suffix-$(CONFIG_KERNEL_LZO) := lzo |
| Kyungsik Lee | f9b493a | 2013-07-08 16:01:48 -0700 | [diff] [blame] | 90 | suffix-$(CONFIG_KERNEL_LZ4) := lz4 |
| Alain Knaff | ae03c49 | 2009-01-04 22:46:17 +0100 | [diff] [blame] | 91 | |
| Chris Clayton | e2e68ae | 2014-11-22 09:51:10 +0000 | [diff] [blame] | 92 | RUN_SIZE = $(shell $(OBJDUMP) -h vmlinux | \ |
| Junjie Mao | e602336 | 2014-10-31 21:40:38 +0800 | [diff] [blame] | 93 | perl $(srctree)/arch/x86/tools/calc_run_size.pl) |
| H. Peter Anvin | 02a884c | 2009-05-08 17:42:16 -0700 | [diff] [blame] | 94 | quiet_cmd_mkpiggy = MKPIGGY $@ |
| Junjie Mao | e602336 | 2014-10-31 21:40:38 +0800 | [diff] [blame] | 95 | cmd_mkpiggy = $(obj)/mkpiggy $< $(RUN_SIZE) > $@ || ( rm -f $@ ; false ) |
| H. Peter Anvin | 02a884c | 2009-05-08 17:42:16 -0700 | [diff] [blame] | 96 | |
| 97 | targets += piggy.S |
| 98 | $(obj)/piggy.S: $(obj)/vmlinux.bin.$(suffix-y) $(obj)/mkpiggy FORCE |
| 99 | $(call if_changed,mkpiggy) |