linux/arch/x86/purgatory/Makefile
Linus Torvalds 206f18f2ca Merge branches 'x86-build-for-linus', 'x86-cleanups-for-linus' and 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 build, cleanup and defconfig updates from Ingo Molnar:
 "A single minor build change to suppress a repetitive build messages,
  misc cleanups and a defconfig update"

* 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/purgatory, build: Suppress kexec-purgatory.c is up to date message

* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, CPU, AMD: Move K8 TLB flush filter workaround to K8 code
  x86, espfix: Remove stale ptemask
  x86, msr: Use seek definitions instead of hard-coded values
  x86, msr: Convert printk to pr_foo()
  x86, msr: Use PTR_ERR_OR_ZERO
  x86/simplefb: Use PTR_ERR_OR_ZERO
  x86/sysfb: Use PTR_ERR_OR_ZERO
  x86, cpuid: Use PTR_ERR_OR_ZERO

* 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/kconfig/defconfig: Enable CONFIG_FHANDLE=y
2014-12-10 12:35:46 -08:00

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Makefile

purgatory-y := purgatory.o stack.o setup-x86_$(BITS).o sha256.o entry64.o string.o
targets += $(purgatory-y)
PURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y))
LDFLAGS_purgatory.ro := -e purgatory_start -r --no-undefined -nostdlib -z nodefaultlib
targets += purgatory.ro
# Default KBUILD_CFLAGS can have -pg option set when FTRACE is enabled. That
# in turn leaves some undefined symbols like __fentry__ in purgatory and not
# sure how to relocate those. Like kexec-tools, use custom flags.
KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes -fno-zero-initialized-in-bss -fno-builtin -ffreestanding -c -MD -Os -mcmodel=large
KBUILD_CFLAGS += -m$(BITS)
$(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE
$(call if_changed,ld)
targets += kexec-purgatory.c
CMD_BIN2C = $(objtree)/scripts/basic/bin2c
quiet_cmd_bin2c = BIN2C $@
cmd_bin2c = $(CMD_BIN2C) kexec_purgatory < $< > $@
$(obj)/kexec-purgatory.c: $(obj)/purgatory.ro FORCE
$(call if_changed,bin2c)
@:
obj-$(CONFIG_KEXEC_FILE) += kexec-purgatory.o