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tests/migration: Convert x86 boot block compilation script into Makefile

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The x86 boot block header currently is generated with a shell script.
To better support other CPUs (e.g. aarch64), we convert the script
into Makefile. This allows us to 1) support cross-compilation easily,
and 2) avoid creating a script file for every architecture.

Note that, in the new design, the cross compiler prefix can be specified by
setting the CROSS_PREFIX in "make" command. Also to allow gcc pre-processor
to include the C-style file correctly, it also renames the
x86-a-b-bootblock.s file extension from .s to .S.

Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Wei Huang <wei@redhat.com>
Message-Id: <1536174934-26022-2-git-send-email-wei@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Wei Huang 2018-09-05 15:15:31 -04:00 committed by Dr. David Alan Gilbert
parent 32b054954f
commit fe73077401
3 changed files with 31 additions and 33 deletions
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31
tests/migration/Makefile Normal file
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@ -0,0 +1,31 @@
# To specify cross compiler prefix, use CROSS_PREFIX=
# $ make CROSS_PREFIX=x86_64-linux-gnu-
override define __note
/* This file is automatically generated from
* tests/migration/x86-a-b-bootblock.S, edit that and then run
* tests/migration/rebuild-x86-bootblock.sh to update,
* and then remember to send both in your patch submission.
*/
endef
export __note
.PHONY: all clean
all: x86-a-b-bootblock.h
x86-a-b-bootblock.h: x86.bootsect
echo "$$__note" > header.tmp
xxd -i $< | sed -e 's/.*int.*//' >> header.tmp
mv header.tmp $@
x86.bootsect: x86.boot
dd if=$< of=$@ bs=256 count=2 skip=124
x86.boot: x86.o
$(CROSS_PREFIX)objcopy -O binary $< $@
x86.o: x86-a-b-bootblock.S
$(CROSS_PREFIX)gcc -m32 -march=i486 -c $< -o $@
clean:
@rm -rf *.boot *.o *.bootsect

33
tests/migration/rebuild-x86-bootblock.sh
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@ -1,33 +0,0 @@
#!/bin/sh
# Copyright (c) 2016-2018 Red Hat, Inc. and/or its affiliates
# This work is licensed under the terms of the GNU GPL, version 2 or later.
# See the COPYING file in the top-level directory.
#
# Author: dgilbert@redhat.com
ASMFILE=$PWD/tests/migration/x86-a-b-bootblock.s
HEADER=$PWD/tests/migration/x86-a-b-bootblock.h
if [ ! -e "$ASMFILE" ]
then
echo "Couldn't find $ASMFILE" >&2
exit 1
fi
ASM_WORK_DIR=$(mktemp -d --tmpdir X86BB.XXXXXX)
cd "$ASM_WORK_DIR" &&
as --32 -march=i486 "$ASMFILE" -o x86.o &&
objcopy -O binary x86.o x86.boot &&
dd if=x86.boot of=x86.bootsect bs=256 count=2 skip=124 &&
xxd -i x86.bootsect |
sed -e 's/.*int.*//' > x86.hex &&
cat - x86.hex <<HERE > "$HEADER"
/* This file is automatically generated from
* tests/migration/x86-a-b-bootblock.s, edit that and then run
* tests/migration/rebuild-x86-bootblock.sh to update,
* and then remember to send both in your patch submission.
*/
HERE
rm x86.hex x86.bootsect x86.boot x86.o
cd .. && rmdir "$ASM_WORK_DIR"

0
tests/migration/x86-a-b-bootblock.s → tests/migration/x86-a-b-bootblock.S
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