diff options
Diffstat (limited to 'arch/parisc/kernel/vdso32/Makefile')
| -rw-r--r-- | arch/parisc/kernel/vdso32/Makefile | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/parisc/kernel/vdso32/Makefile b/arch/parisc/kernel/vdso32/Makefile new file mode 100644 index 000000000000..4459a48d2303 --- /dev/null +++ b/arch/parisc/kernel/vdso32/Makefile @@ -0,0 +1,53 @@ +# List of files in the vdso, has to be asm only for now + +obj-vdso32 = note.o sigtramp.o restart_syscall.o + +# Build rules + +targets := $(obj-vdso32) vdso32.so +obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32)) + +ccflags-y := -shared -fno-common -fbuiltin -mno-fast-indirect-calls -O2 -mno-long-calls +# -march=1.1 -mschedule=7100LC +ccflags-y += -nostdlib -Wl,-soname=linux-vdso32.so.1 \ + $(call ld-option, -Wl$(comma)--hash-style=sysv) +asflags-y := -D__VDSO32__ -s + +KBUILD_AFLAGS += -DBUILD_VDSO +KBUILD_CFLAGS += -DBUILD_VDSO -DDISABLE_BRANCH_PROFILING + +VDSO_LIBGCC := $(shell $(CROSS32CC) -print-libgcc-file-name) + +obj-y += vdso32_wrapper.o +extra-y += vdso32.lds +CPPFLAGS_vdso32.lds += -P -C # -U$(ARCH) + +$(obj)/vdso32_wrapper.o : $(obj)/vdso32.so FORCE + +# Force dependency (incbin is bad) +# link rule for the .so file, .lds has to be first +$(obj)/vdso32.so: $(src)/vdso32.lds $(obj-vdso32) $(obj-cvdso32) $(VDSO_LIBGCC) FORCE + $(call if_changed,vdso32ld) + +# assembly rules for the .S files +$(obj-vdso32): %.o: %.S FORCE + $(call if_changed_dep,vdso32as) + +$(obj-cvdso32): %.o: %.c FORCE + $(call if_changed_dep,vdso32cc) + +# actual build commands +quiet_cmd_vdso32ld = VDSO32L $@ + cmd_vdso32ld = $(CROSS32CC) $(c_flags) -Wl,-T $(filter-out FORCE, $^) -o $@ +quiet_cmd_vdso32as = VDSO32A $@ + cmd_vdso32as = $(CROSS32CC) $(a_flags) -c -o $@ $< +quiet_cmd_vdso32cc = VDSO32C $@ + cmd_vdso32cc = $(CROSS32CC) $(c_flags) -c -fPIC -mno-fast-indirect-calls -o $@ $< + +# Generate VDSO offsets using helper script +gen-vdsosym := $(srctree)/$(src)/gen_vdso_offsets.sh +quiet_cmd_vdsosym = VDSOSYM $@ + cmd_vdsosym = $(NM) $< | $(gen-vdsosym) | LC_ALL=C sort > $@ + +include/generated/vdso32-offsets.h: $(obj)/vdso32.so FORCE + $(call if_changed,vdsosym) |