arch/s390/purgatory/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2
   3 OBJECT_FILES_NON_STANDARD := y
   4
   5 purgatory-y := head.o purgatory.o string.o sha256.o mem.o
   6
   7 targets += $(purgatory-y) purgatory.ro kexec-purgatory.c
   8 PURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y))
   9
  10 $(obj)/sha256.o: $(srctree)/lib/sha256.c
  11         $(call if_changed_rule,cc_o_c)
  12
  13 $(obj)/mem.o: $(srctree)/arch/s390/lib/mem.S
  14         $(call if_changed_rule,as_o_S)
  15
  16 $(obj)/string.o: $(srctree)/arch/s390/lib/string.c
  17         $(call if_changed_rule,cc_o_c)
  18
  19 LDFLAGS_purgatory.ro := -e purgatory_start -r --no-undefined -nostdlib
  20 LDFLAGS_purgatory.ro += -z nodefaultlib
  21 KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes
  22 KBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare
  23 KBUILD_CFLAGS += -fno-zero-initialized-in-bss -fno-builtin -ffreestanding
  24 KBUILD_CFLAGS += -c -MD -Os -m64 -msoft-float
  25 KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
  26
  27 $(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE
  28                 $(call if_changed,ld)
  29
  30 CMD_BIN2C = $(objtree)/scripts/basic/bin2c
  31 quiet_cmd_bin2c = BIN2C   $@
  32       cmd_bin2c = $(CMD_BIN2C) kexec_purgatory < $< > $@
  33
  34 $(obj)/kexec-purgatory.c: $(obj)/purgatory.ro FORCE
  35         $(call if_changed,bin2c)
  36
  37 obj-$(CONFIG_ARCH_HAS_KEXEC_PURGATORY) += kexec-purgatory.o