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#
# Makefile for the ia32 kernel emulation subsystem.
#
obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o tls32.o \
ia32_binfmt.o fpu32.o ptrace32.o syscall32.o syscall32_syscall.o \
mmap32.o
sysv-$(CONFIG_SYSVIPC) := ipc32.o
obj-$(CONFIG_IA32_EMULATION) += $(sysv-y)
obj-$(CONFIG_IA32_AOUT) += ia32_aout.o
audit-class-$(CONFIG_AUDIT) := audit.o
obj-$(CONFIG_IA32_EMULATION) += $(audit-class-y)
$(obj)/syscall32_syscall.o: \
$(foreach F,sysenter syscall,$(obj)/vsyscall-$F.so)
# Teach kbuild about targets
targets := $(foreach F,$(addprefix vsyscall-,sysenter syscall),\
$F.o $F.so $F.so.dbg)
# The DSO images are built using a special linker script
quiet_cmd_syscall = SYSCALL $@
cmd_syscall = $(CC) -m32 -nostdlib -shared \
$(call ld-option, -Wl$(comma)--hash-style=sysv) \
-Wl,-soname=linux-gate.so.1 -o $@ \
-Wl,-T,$(filter-out FORCE,$^)
$(obj)/%.so: OBJCOPYFLAGS := -S
$(obj)/%.so: $(obj)/%.so.dbg FORCE
$(call if_changed,objcopy)
$(obj)/vsyscall-sysenter.so.dbg $(obj)/vsyscall-syscall.so.dbg: \
$(obj)/vsyscall-%.so.dbg: $(src)/vsyscall.lds $(obj)/vsyscall-%.o FORCE
$(call if_changed,syscall)
AFLAGS_vsyscall-sysenter.o = -m32 -Wa,-32
AFLAGS_vsyscall-syscall.o = -m32 -Wa,-32
vdsos := vdso32-sysenter.so vdso32-syscall.so
quiet_cmd_vdso_install = INSTALL $@
cmd_vdso_install = cp $(@:vdso32-%.so=$(obj)/vsyscall-%.so.dbg) \
$(MODLIB)/vdso/$@
$(vdsos):
@mkdir -p $(MODLIB)/vdso
$(call cmd,vdso_install)
vdso_install: $(vdsos)
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