2 # Makefile for the ia32 kernel emulation subsystem.
5 obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o tls32.o \
6 ia32_binfmt.o fpu32.o ptrace32.o syscall32.o syscall32_syscall.o \
9 sysv-$(CONFIG_SYSVIPC) := ipc32.o
10 obj-$(CONFIG_IA32_EMULATION) += $(sysv-y)
12 obj-$(CONFIG_IA32_AOUT) += ia32_aout.o
14 audit-class-$(CONFIG_AUDIT) := audit.o
15 obj-$(CONFIG_IA32_EMULATION) += $(audit-class-y)
17 $(obj)/syscall32_syscall.o: \
18 $(foreach F,sysenter syscall,$(obj)/vsyscall-$F.so)
20 # Teach kbuild about targets
21 targets := $(foreach F,$(addprefix vsyscall-,sysenter syscall),\
24 # The DSO images are built using a special linker script
25 quiet_cmd_syscall = SYSCALL $@
26 cmd_syscall = $(CC) -m32 -nostdlib -shared \
27 $(call ld-option, -Wl$(comma)--hash-style=sysv) \
28 -Wl,-soname=linux-gate.so.1 -o $@ \
29 -Wl,-T,$(filter-out FORCE,$^)
31 $(obj)/%.so: OBJCOPYFLAGS := -S
32 $(obj)/%.so: $(obj)/%.so.dbg FORCE
33 $(call if_changed,objcopy)
35 $(obj)/vsyscall-sysenter.so.dbg $(obj)/vsyscall-syscall.so.dbg: \
36 $(obj)/vsyscall-%.so.dbg: $(src)/vsyscall.lds $(obj)/vsyscall-%.o FORCE
37 $(call if_changed,syscall)
39 AFLAGS_vsyscall-sysenter.o = -m32 -Wa,-32
40 AFLAGS_vsyscall-syscall.o = -m32 -Wa,-32
42 vdsos := vdso32-sysenter.so vdso32-syscall.so
44 quiet_cmd_vdso_install = INSTALL $@
45 cmd_vdso_install = cp $(@:vdso32-%.so=$(obj)/vsyscall-%.so.dbg) \
49 @mkdir -p $(MODLIB)/vdso
50 $(call cmd,vdso_install)
52 vdso_install: $(vdsos)