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piegen: Implement tool building, v2

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Here we simply build piegen tool which gonna be used
to generate parasite code safe to rellocate. The tool
is taking object file as an argument, parses it and
generates C file with rellocations encoded in form
suitable for fast appliance.

Currently only x86-32 x86-64 is supported.

v2 (by ldufour@):
 - Filter PIEGEN

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Cyrill Gorcunov 2015-06-05 00:04:02 +03:00 • committed by Pavel Emelyanov
parent 7a9813346b
commit b6668af613
7 changed files with 562 additions and 2 deletions
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19
Makefile
View file

@ -142,6 +142,9 @@ ARCH-LIB := $(ARCH_DIR)/crtools.built-in.o
CRIU-SO := libcriu
CRIU-LIB := lib/$(CRIU-SO).so
CRIU-INC := lib/criu.h include/criu-plugin.h include/criu-log.h protobuf/rpc.proto
ifneq ($(filter i386 ia32 x86_64, $(ARCH)),)
PIEGEN := pie/piegen/piegen
endif
export CC MAKE CFLAGS LIBS SRCARCH DEFINES MAKEFLAGS CRIU-SO
export SRC_DIR SYSCALL-LIB SH RM ARCH_DIR OBJCOPY LDARCH LD
@ -184,9 +187,20 @@ $(ARCH_DIR)/%:: protobuf config
$(ARCH_DIR): protobuf config
$(Q) $(MAKE) $(build)=$(ARCH_DIR) all
pie/%:: $(ARCH_DIR)
ifneq ($(filter i386 ia32 x86_64, $(ARCH)),)
pie/piegen/%:
$(Q) $(MAKE) $(build)=pie/piegen $@
pie/piegen:
$(Q) $(MAKE) $(build)=pie/piegen all
$(PIEGEN): pie/piegen/built-in.o
$(E) " LINK " $@
$(Q) $(CC) $(CFLAGS) $^ $(LDFLAGS) -o $@
.PHONY: pie/piegen
endif
pie/%:: $(ARCH_DIR) $(PIEGEN)
$(Q) $(MAKE) $(build)=pie $@
pie: $(ARCH_DIR)
pie: $(ARCH_DIR) $(PIEGEN)
$(Q) $(MAKE) $(build)=pie all
%.o %.i %.s %.d: $(VERSION_HEADER) pie
@ -235,6 +249,7 @@ clean-built:
$(Q) $(RM) $(VERSION_HEADER)
$(Q) $(MAKE) $(build)=$(ARCH_DIR) clean
$(Q) $(MAKE) $(build)=protobuf clean
$(Q) $(MAKE) $(build)=pie/piegen clean
$(Q) $(MAKE) $(build)=pie clean
$(Q) $(MAKE) $(build)=lib clean
$(Q) $(MAKE) $(build-crtools)=. clean