criu: pie -- Switch to use compel shipped lds scripts

Now when *.lds is in compel we can switch to it. Also -- remove
the criu lds generation code.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>

criu/pie/Makefile

@@ -6,6 +6,9 @@ ifeq ($(CONFIG_COMPAT),y)
         parasite_target	+= compat
 endif
 
+compel_pack_lds-native	:= $(SRC_DIR)/compel/arch/$(ARCH)/scripts/compel-pack.lds.S
+compel_pack_lds-compat	:= $(SRC_DIR)/compel/arch/$(ARCH)/scripts/compel-pack-compat.lds.S
+
 native-obj-y           += parasite.o
 native-obj-y           += infect.o
 compat-obj-y           += compat/parasite-compat.o
@@ -97,46 +100,12 @@ GEN-OFFSETS		:= $(obj)/../../scripts/gen-offsets.sh
 BLOBS			+= $(obj)/restorer-blob.h
 
 define gen-pields-blobs-var
-PIELDS			+= $(obj)/pie.lds-$(1).S
 BLOBS			+= $(obj)/parasite-$(1)-blob.h
 endef
 $(eval $(call map,gen-pields-blobs-var,$(parasite_target)))
 
 .SECONDARY:
 
-ifeq ($(piegen-y),y)
-PIELDS_INCLUDE		:= $(obj)/pie-reloc.lds.S.in
-else
-PIELDS_INCLUDE		:= $(obj)/pie.lds.S.in
-endif
-
-ifeq ($(ARCH),x86)
-$(obj)/pie.lds-native.S: $(PIELDS_INCLUDE)
-	$(call msg-gen, $@)
-	$(Q) echo "OUTPUT_ARCH(i386:x86-64)"		>  $@
-	$(Q) echo "TARGET(elf64-x86-64)"		>> $@
-	$(Q) cat $<					>> $@
-
-$(obj)/pie.lds-compat.S: $(PIELDS_INCLUDE)
-	$(call msg-gen, $@)
-	$(Q) echo "OUTPUT_ARCH(i386)"			>  $@
-	$(Q) echo "TARGET(elf32-i386)"			>> $@
-	$(Q) cat $<					>> $@
-else # !x86
-ifeq ($(filter-out i386 ia32,$(ARCH)),)
-$(PIELDS): $(PIELDS_INCLUDE)
-	$(call msg-gen, $@)
-	$(Q) echo "OUTPUT_ARCH(i386)"			>  $@
-	$(Q) echo "TARGET(elf32-i386)"			>> $@
-	$(Q) cat $<					>> $@
-else # arm, aarch64, ppc64
-$(PIELDS): $(PIELDS_INCLUDE)
-	$(call msg-gen, $@)
-	$(Q) echo "OUTPUT_ARCH($(LDARCH))"              >  $@
-	$(Q) cat $<					>> $@
-endif # non i386
-endif # non x86 ARCH
-
 # for C files, we need "parasite-native" to be "parasite_native"
 target-name = $(patsubst criu/pie/%_blob.h,%,$(subst -,_,$(1)))
 
@@ -146,16 +115,16 @@ ifeq ($(strip $(V)),)
 endif
 
 $(obj)/restorer.built-in.bin.o: $(obj)/restorer.built-in.o		\
-				$(obj)/native.lib.a $(obj)/pie.lds-native.S
+				$(obj)/native.lib.a $(compel_pack_lds-native)
 	$(call msg-gen, $@)
-	$(Q) $(LD) -r -T $(obj)/pie.lds-native.S -o $@ $< $(obj)/native.lib.a
+	$(Q) $(LD) -r -T $(compel_pack_lds-native) -o $@ $< $(obj)/native.lib.a
 
 # $1 - binary mode: native/compat
 define gen-rule-built-in.bin.o
 $(obj)/parasite-$(1).built-in.bin.o: $(obj)/$(1).built-in.o		\
-				$(obj)/$(1).lib.a $(obj)/pie.lds-$(1).S
+				$(obj)/$(1).lib.a $(compel_pack_lds-$(1))
 	$$(call msg-gen, $$@)
-	$(Q) $(LD) -r -T $(obj)/pie.lds-$(1).S -o $$@ $$< $(obj)/$(1).lib.a
+	$(Q) $(LD) -r -T $(compel_pack_lds-$(1)) -o $$@ $$< $(obj)/$(1).lib.a
 endef
 $(eval $(call map,gen-rule-built-in.bin.o,$(parasite_target)))
 
@@ -179,17 +148,17 @@ endif
 
 define gen-rule-built-in.bin.o
 $(obj)/parasite-$(1).built-in.bin.o: $(obj)/$(1).built-in.o		\
-				$(obj)/pie.lds-$(1).S $(obj)/native.lib.a
+				$(compel_pack_lds-$(1)) $(obj)/native.lib.a
 	$$(call msg-gen, $$@)
-	$(Q) $(LD) $(LD_R) -T $(obj)/pie.lds-$(1).S -o $$@ $$< $(obj)/native.lib.a
+	$(Q) $(LD) $(LD_R) -T $(compel_pack_lds-$(1)) -o $$@ $$< $(obj)/native.lib.a
 endef
 
 $(eval $(call map,gen-rule-built-in.bin.o,$(parasite_target)))
 
 $(obj)/restorer.built-in.bin.o: $(obj)/restorer.built-in.o		\
-				$(obj)/pie.lds-native.S $(obj)/native.lib.a
+				$(compel_pack_lds-native) $(obj)/native.lib.a
 	$(call msg-gen, $@)
-	$(Q) $(LD) $(LD_R) -T $(obj)/pie.lds-native.S -o $@ $< $(obj)/native.lib.a
+	$(Q) $(LD) $(LD_R) -T $(compel_pack_lds-native) -o $@ $< $(obj)/native.lib.a
 
 $(obj)/%.built-in.bin: $(obj)/%.built-in.bin.o
 	$(call msg-gen, $@)
@@ -206,7 +175,6 @@ all-y += $(BLOBS)
 # blobs and pields are in cleanup, rather than in mrproper because
 # we want them to be re-generated after `make clean && make`
 cleanup-y += $(BLOBS)
-cleanup-y += $(PIELDS)
 cleanup-y += $(obj)/*.bin
 cleanup-y += $(obj)/*.built-in.bin.o
 cleanup-y += $(obj)/*.built-in.bin

criu/pie/pie-reloc.lds.S.in

-SECTIONS
-{
-	.text : {
-		*(.head.text)
-		*(.text*)
-		*(.compel.init)
-		*(.compel.exit)
-	}
-
-	.data : {
-		*(.data*)
-		*(.bss*)
-	}
-
-	.rodata : {
-		*(.rodata*)
-		*(.got*)
-	}
-
-	.toc : ALIGN(8) {
-		*(.toc*)
-	}
-
-	/DISCARD/ : {
-		*(.debug*)
-		*(.comment*)
-		*(.note*)
-		*(.group*)
-		*(.eh_frame*)
-	}
-
-/* Parasite args should have 4 bytes align, as we have futex inside. */
-. = ALIGN(4);
-__export_parasite_args = .;
-}

criu/pie/pie.lds.S.in

-SECTIONS
-{
-	.crblob 0x0 : {
-		*(.head.text)
-		*(.text*)
-		. = ALIGN(32);
-		*(.data*)
-		. = ALIGN(32);
-		*(.rodata*)
-		. = ALIGN(32);
-		*(.bss*)
-		. = ALIGN(32);
-		*(.got*)
-		. = ALIGN(32);
-		*(.toc*)
-		. = ALIGN(32);
-	} =0x00000000,
-
-	/DISCARD/ : {
-		*(.debug*)
-		*(.comment*)
-		*(.note*)
-		*(.group*)
-		*(.eh_frame*)
-		*(*)
-	}
-
-/* Parasite args should have 4 bytes align, as we have futex inside. */
-. = ALIGN(4);
-__export_parasite_args = .;
-}