arch/x86/ia32/Makefile

   1 #
   2 # Makefile for the ia32 kernel emulation subsystem.
   3 #
   4
   5 obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o tls32.o \
   6         ia32_binfmt.o fpu32.o ptrace32.o
   7
   8 sysv-$(CONFIG_SYSVIPC) := ipc32.o
   9 obj-$(CONFIG_IA32_EMULATION) += $(sysv-y)
  10
  11 obj-$(CONFIG_IA32_AOUT) += ia32_aout.o
  12
  13 audit-class-$(CONFIG_AUDIT) := audit.o
  14 obj-$(CONFIG_IA32_EMULATION) += $(audit-class-y)
  15
  16 $(obj)/syscall32_syscall.o: \
  17         $(foreach F,sysenter syscall,$(obj)/vsyscall-$F.so)
  18
  19 # Teach kbuild about targets
  20 targets := $(foreach F,$(addprefix vsyscall-,sysenter syscall),\
  21                      $F.o $F.so $F.so.dbg)
  22
  23 # The DSO images are built using a special linker script
  24 quiet_cmd_syscall = SYSCALL $@
  25       cmd_syscall = $(CC) -m32 -nostdlib -shared \
  26                           $(call ld-option, -Wl$(comma)--hash-style=sysv) \
  27                            -Wl,-soname=linux-gate.so.1 -o $@ \
  28                            -Wl,-T,$(filter-out FORCE,$^)
  29
  30 $(obj)/%.so: OBJCOPYFLAGS := -S
  31 $(obj)/%.so: $(obj)/%.so.dbg FORCE
  32         $(call if_changed,objcopy)
  33
  34 $(obj)/vsyscall-sysenter.so.dbg $(obj)/vsyscall-syscall.so.dbg: \
  35 $(obj)/vsyscall-%.so.dbg: $(src)/vsyscall.lds $(obj)/vsyscall-%.o FORCE
  36         $(call if_changed,syscall)
  37
  38 AFLAGS_vsyscall-sysenter.o = -m32 -Wa,-32
  39 AFLAGS_vsyscall-syscall.o = -m32 -Wa,-32
  40
  41 vdsos := vdso32-sysenter.so vdso32-syscall.so
  42
  43 quiet_cmd_vdso_install = INSTALL $@
  44       cmd_vdso_install = cp $(@:vdso32-%.so=$(obj)/vsyscall-%.so.dbg) \
  45                             $(MODLIB)/vdso/$@
  46
  47 $(vdsos):
  48         @mkdir -p $(MODLIB)/vdso
  49         $(call cmd,vdso_install)
  50
  51 vdso_install: $(vdsos)