tests/migration: Support cross compilation in generating boot header file
Recently a new configure option, CROSS_CC_GUEST, was added to $(TARGET)-softmmu/config-target.mak to support TCG-related tests. This patch tries to leverage this option to support cross compilation when the migration boot block file is being re-generated: * The x86 related files are moved to a new sub-dir (named ./i386). * A new top-layer Makefile is created in tests/migration/ directory. This Makefile searches and parses CROSS_CC_GUEST to generate CROSS_PREFIX. The CROSS_PREFIX, if available, is then passed to migration/$ARCH/Makefile. Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Wei Huang <wei@redhat.com> Message-Id: <1536174934-26022-3-git-send-email-wei@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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@ -83,7 +83,7 @@ static const char *tmpfs;
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/* A simple PC boot sector that modifies memory (1-100MB) quickly
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* outputting a 'B' every so often if it's still running.
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*/
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#include "tests/migration/x86-a-b-bootblock.h"
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#include "tests/migration/i386/a-b-bootblock.h"
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static void init_bootfile_x86(const char *bootpath)
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{
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@ -1,31 +1,35 @@
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# To specify cross compiler prefix, use CROSS_PREFIX=
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# $ make CROSS_PREFIX=x86_64-linux-gnu-
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#
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# Copyright (c) 2018 Red Hat, Inc. and/or its affiliates
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#
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# This work is licensed under the terms of the GNU GPL, version 2 or later.
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# See the COPYING file in the top-level directory.
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#
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TARGET_LIST = i386
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SRC_PATH = ../..
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override define __note
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/* This file is automatically generated from
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* tests/migration/x86-a-b-bootblock.S, edit that and then run
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* tests/migration/rebuild-x86-bootblock.sh to update,
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* and then remember to send both in your patch submission.
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/* This file is automatically generated from the assembly file in
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* tests/migration/$@. Edit that file and then run "make all"
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* inside tests/migration to update, and then remember to send both
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* the header and the assembler differences in your patch submission.
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*/
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endef
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export __note
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.PHONY: all clean
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all: x86-a-b-bootblock.h
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find-arch-cross-cc = $(lastword $(shell grep -h "CROSS_CC_GUEST=" $(wildcard $(SRC_PATH)/$(patsubst i386,*86*,$(1))-softmmu/config-target.mak) /dev/null))
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parse-cross-prefix = $(subst gcc,,$(patsubst cc,gcc,$(patsubst CROSS_CC_GUEST="%",%,$(call find-arch-cross-cc,$(1)))))
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gen-cross-prefix = $(patsubst %-,CROSS_PREFIX=%-,$(call parse-cross-prefix,$(1)))
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x86-a-b-bootblock.h: x86.bootsect
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echo "$$__note" > header.tmp
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xxd -i $< | sed -e 's/.*int.*//' >> header.tmp
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mv header.tmp $@
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.PHONY: all $(TARGET_LIST)
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x86.bootsect: x86.boot
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dd if=$< of=$@ bs=256 count=2 skip=124
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all: $(TARGET_LIST)
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x86.boot: x86.o
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$(CROSS_PREFIX)objcopy -O binary $< $@
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x86.o: x86-a-b-bootblock.S
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$(CROSS_PREFIX)gcc -m32 -march=i486 -c $< -o $@
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$(TARGET_LIST):
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$(MAKE) -C $@ $(call gen-cross-prefix,$@)
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clean:
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@rm -rf *.boot *.o *.bootsect
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for target in $(TARGET_LIST); do \
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$(MAKE) -C $$target clean; \
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done
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22
tests/migration/i386/Makefile
Normal file
22
tests/migration/i386/Makefile
Normal file
@ -0,0 +1,22 @@
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# To specify cross compiler prefix, use CROSS_PREFIX=
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# $ make CROSS_PREFIX=x86_64-linux-gnu-
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.PHONY: all clean
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all: a-b-bootblock.h
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a-b-bootblock.h: x86.bootsect
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echo "$$__note" > header.tmp
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xxd -i $< | sed -e 's/.*int.*//' >> header.tmp
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mv header.tmp $@
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x86.bootsect: x86.boot
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dd if=$< of=$@ bs=256 count=2 skip=124
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x86.boot: x86.o
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$(CROSS_PREFIX)objcopy -O binary $< $@
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x86.o: a-b-bootblock.S
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$(CROSS_PREFIX)gcc -m32 -march=i486 -c $< -o $@
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clean:
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@rm -rf *.boot *.o *.bootsect
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@ -3,10 +3,6 @@
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# range.
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# Outputs an initial 'A' on serial followed by repeated 'B's
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#
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# run tests/migration/rebuild-x86-bootblock.sh
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# to regenerate the hex, and remember to include both the .h and .s
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# in any patches.
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#
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# Copyright (c) 2016 Red Hat, Inc. and/or its affiliates
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# This work is licensed under the terms of the GNU GPL, version 2 or later.
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# See the COPYING file in the top-level directory.
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@ -1,7 +1,7 @@
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/* This file is automatically generated from
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* tests/migration/x86-a-b-bootblock.s, edit that and then run
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* tests/migration/rebuild-x86-bootblock.sh to update,
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* and then remember to send both in your patch submission.
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/* This file is automatically generated from the assembly file in
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* tests/migration/i386. Edit that file and then run "make all"
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* inside tests/migration to update, and then remember to send both
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* the header and the assembler differences in your patch submission.
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*/
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unsigned char x86_bootsect[] = {
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0xfa, 0x0f, 0x01, 0x16, 0x74, 0x7c, 0x66, 0xb8, 0x01, 0x00, 0x00, 0x00,
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