| Josh Poimboeuf | c0dd671686 | 2016-02-28 22:22:34 -0600 | [diff] [blame] | 1 | OBJECT_FILES_NON_STANDARD := y |
| 2 | |
| Vivek Goyal | 8fc5b4d | 2014-08-08 14:26:02 -0700 | [diff] [blame] | 3 | purgatory-y := purgatory.o stack.o setup-x86_$(BITS).o sha256.o entry64.o string.o |
| 4 | |
| 5 | targets += $(purgatory-y) |
| 6 | PURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y)) |
| 7 | |
| 8 | LDFLAGS_purgatory.ro := -e purgatory_start -r --no-undefined -nostdlib -z nodefaultlib |
| 9 | targets += purgatory.ro |
| 10 | |
| Mike Galbraith | 13a6798 | 2017-03-31 15:12:12 -0700 | [diff] [blame] | 11 | KASAN_SANITIZE := n |
| Emese Revfy | 543c37c | 2016-05-24 00:11:37 +0200 | [diff] [blame] | 12 | KCOV_INSTRUMENT := n |
| 13 | |
| Vivek Goyal | 8fc5b4d | 2014-08-08 14:26:02 -0700 | [diff] [blame] | 14 | # Default KBUILD_CFLAGS can have -pg option set when FTRACE is enabled. That |
| 15 | # in turn leaves some undefined symbols like __fentry__ in purgatory and not |
| 16 | # sure how to relocate those. Like kexec-tools, use custom flags. |
| 17 | |
| 18 | KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes -fno-zero-initialized-in-bss -fno-builtin -ffreestanding -c -MD -Os -mcmodel=large |
| Vivek Goyal | 4df4185 | 2014-08-29 15:18:55 -0700 | [diff] [blame] | 19 | KBUILD_CFLAGS += -m$(BITS) |
| Sebastian Andrzej Siewior | 90944e4 | 2016-11-04 19:39:40 +0100 | [diff] [blame] | 20 | KBUILD_CFLAGS += $(call cc-option,-fno-PIE) |
| Vivek Goyal | 8fc5b4d | 2014-08-08 14:26:02 -0700 | [diff] [blame] | 21 | |
| 22 | $(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE |
| 23 | $(call if_changed,ld) |
| 24 | |
| 25 | targets += kexec-purgatory.c |
| 26 | |
| Baoquan He | 887f4f8 | 2014-10-13 15:53:37 -0700 | [diff] [blame] | 27 | CMD_BIN2C = $(objtree)/scripts/basic/bin2c |
| Vivek Goyal | 8fc5b4d | 2014-08-08 14:26:02 -0700 | [diff] [blame] | 28 | quiet_cmd_bin2c = BIN2C $@ |
| Baoquan He | 887f4f8 | 2014-10-13 15:53:37 -0700 | [diff] [blame] | 29 | cmd_bin2c = $(CMD_BIN2C) kexec_purgatory < $< > $@ |
| Vivek Goyal | 8fc5b4d | 2014-08-08 14:26:02 -0700 | [diff] [blame] | 30 | |
| 31 | $(obj)/kexec-purgatory.c: $(obj)/purgatory.ro FORCE |
| 32 | $(call if_changed,bin2c) |
| Vivek Goyal | 8fc5b4d | 2014-08-08 14:26:02 -0700 | [diff] [blame] | 33 | |
| Vivek Goyal | 74ca317 | 2014-08-29 15:18:46 -0700 | [diff] [blame] | 34 | obj-$(CONFIG_KEXEC_FILE) += kexec-purgatory.o |