arch/parisc/kernel/vdso32/Makefile

   1 # Include the generic Makefile to check the built vdso.
   2 include $(srctree)/lib/vdso/Makefile
   3
   4 KCOV_INSTRUMENT := n
   5
   6 # Disable gcov profiling, ubsan and kasan for VDSO code
   7 GCOV_PROFILE := n
   8 UBSAN_SANITIZE := n
   9 KASAN_SANITIZE := n
  10 KCSAN_SANITIZE := n
  11
  12 obj-vdso32 = note.o sigtramp.o restart_syscall.o
  13 obj-cvdso32 = vdso32_generic.o
  14
  15 # Build rules
  16
  17 targets := $(obj-vdso32) $(obj-cvdso32) vdso32.so
  18 obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32))
  19 obj-cvdso32 := $(addprefix $(obj)/, $(obj-cvdso32))
  20
  21 VDSO_CFLAGS_REMOVE := -pg $(CC_FLAGS_FTRACE)
  22 CFLAGS_REMOVE_vdso32_generic.o = $(VDSO_CFLAGS_REMOVE)
  23
  24 ccflags-y := -shared -fno-common -fbuiltin -mno-fast-indirect-calls -O2 -mno-long-calls
  25 #  -march=1.1 -mschedule=7100LC
  26 ccflags-y += -nostdlib -Wl,-soname=linux-vdso32.so.1 \
  27                 $(call ld-option, -Wl$(comma)--hash-style=sysv)
  28 asflags-y := -D__VDSO32__ -s
  29
  30 KBUILD_AFLAGS += -DBUILD_VDSO
  31 KBUILD_CFLAGS += -DBUILD_VDSO -DDISABLE_BRANCH_PROFILING
  32
  33 VDSO_LIBGCC := $(shell $(CROSS32CC) -print-libgcc-file-name)
  34
  35 obj-y += vdso32_wrapper.o
  36 extra-y += vdso32.lds
  37 CPPFLAGS_vdso32.lds += -P -C  #  -U$(ARCH)
  38
  39 $(obj)/vdso32_wrapper.o : $(obj)/vdso32.so FORCE
  40
  41 # Force dependency (incbin is bad)
  42 # link rule for the .so file, .lds has to be first
  43 $(obj)/vdso32.so: $(obj)/vdso32.lds $(obj-vdso32) $(obj-cvdso32) $(VDSO_LIBGCC) FORCE
  44         $(call if_changed,vdso32ld)
  45
  46 # assembly rules for the .S files
  47 $(obj-vdso32): %.o: %.S FORCE
  48         $(call if_changed_dep,vdso32as)
  49 $(obj-cvdso32): %.o: %.c FORCE
  50         $(call if_changed_dep,vdso32cc)
  51
  52 # actual build commands
  53 quiet_cmd_vdso32ld = VDSO32L $@
  54       cmd_vdso32ld = $(CROSS32CC) $(c_flags) -Wl,-T $(filter-out FORCE, $^) -o $@
  55 quiet_cmd_vdso32as = VDSO32A $@
  56       cmd_vdso32as = $(CROSS32CC) $(a_flags) -c -o $@ $<
  57 quiet_cmd_vdso32cc = VDSO32C $@
  58       cmd_vdso32cc = $(CROSS32CC) $(c_flags) -c -o $@ $<
  59
  60 # Generate VDSO offsets using helper script
  61 gen-vdsosym := $(src)/gen_vdso_offsets.sh
  62 quiet_cmd_vdsosym = VDSOSYM $@
  63         cmd_vdsosym = $(NM) $< | $(gen-vdsosym) | LC_ALL=C sort > $@
  64
  65 include/generated/vdso32-offsets.h: $(obj)/vdso32.so FORCE
  66         $(call if_changed,vdsosym)