1 # SPDX-License-Identifier: GPL-2.0
2 obj-y += vsyscall.o vsyscall-syscall.o vsyscal
3
4 $(obj)/vsyscall-syscall.o: $(obj)/vsyscall-tra
5
6 # Teach kbuild about targets
7 targets += vsyscall-trapa.o vsyscall-traps.so
8 targets += vsyscall-note.o vsyscall.lds vsysca
9
10 # The DSO images are built using a special lin
11 quiet_cmd_syscall = SYSCALL $@
12 cmd_syscall = $(CC) -nostdlib $(SYSCFLAG
13 -Wl,-T,$(filter-out
14
15 export CPPFLAGS_vsyscall.lds += -P -C -Ush
16
17 vsyscall-flags = -shared -s -Wl,-soname=linux-
18
19 SYSCFLAGS_vsyscall-trapa.so = $(vsyscall-f
20
21 $(obj)/vsyscall-trapa.so: \
22 $(obj)/vsyscall-%.so: $(obj)/vsyscall.lds $(ob
23 $(call if_changed,syscall)
24
25 # We also create a special relocatable object
26 # table and layout of the linked DSO. With ld
27 # these symbols in the kernel code rather than
28 SYSCFLAGS_vsyscall-dummy.o = -r
29 $(obj)/vsyscall-dummy.o: $(obj)/vsyscall.lds \
30 $(obj)/vsyscall-trapa.
31 $(call if_changed,syscall)
32
33 LDFLAGS_vsyscall-syms.o := -r -R
34 $(obj)/vsyscall-syms.o: $(obj)/vsyscall-dummy.
35 $(call if_changed,ld)
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