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>

diff --git a/tests/migration-test.c b/tests/migration-test.c
index 0e687b751270a294741c927eb78a58983e211c04..fe6b41a38d04be8041af7af9a204db3f05ecac66 100644 (file)
--- a/tests/migration-test.c
+++ b/tests/migration-test.c
@@ -83,7 +83,7 @@ static const char *tmpfs;
 /* A simple PC boot sector that modifies memory (1-100MB) quickly
  * outputting a 'B' every so often if it's still running.
  */
-#include "tests/migration/x86-a-b-bootblock.h"
+#include "tests/migration/i386/a-b-bootblock.h"
 
 static void init_bootfile_x86(const char *bootpath)
 {

diff --git a/tests/migration/Makefile b/tests/migration/Makefile
index c0824b4fbe5498ff6810d62afa41baeebfe13cfa..dc3b551976bb83d301594065a0cee925b8dcf7db 100644 (file)
--- a/tests/migration/Makefile
+++ b/tests/migration/Makefile
@@ -1,31 +1,35 @@
-# To specify cross compiler prefix, use CROSS_PREFIX=
-#   $ make CROSS_PREFIX=x86_64-linux-gnu-
+#
+# Copyright (c) 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.
+#
+
+TARGET_LIST = i386
+
+SRC_PATH = ../..
 
 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.
+/* This file is automatically generated from the assembly file in
+ * tests/migration/$@. Edit that file and then run "make all"
+ * inside tests/migration to update, and then remember to send both
+ * the header and the assembler differences 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 $@
+find-arch-cross-cc = $(lastword $(shell grep -h "CROSS_CC_GUEST=" $(wildcard $(SRC_PATH)/$(patsubst i386,*86*,$(1))-softmmu/config-target.mak) /dev/null))
+parse-cross-prefix = $(subst gcc,,$(patsubst cc,gcc,$(patsubst CROSS_CC_GUEST="%",%,$(call find-arch-cross-cc,$(1)))))
+gen-cross-prefix = $(patsubst %-,CROSS_PREFIX=%-,$(call parse-cross-prefix,$(1)))
 
-x86.bootsect: x86.boot
-       dd if=$< of=$@ bs=256 count=2 skip=124
+.PHONY: all $(TARGET_LIST)
 
-x86.boot: x86.o
-       $(CROSS_PREFIX)objcopy -O binary $< $@
+all: $(TARGET_LIST)
 
-x86.o: x86-a-b-bootblock.S
-       $(CROSS_PREFIX)gcc -m32 -march=i486 -c $< -o $@
+$(TARGET_LIST):
+       $(MAKE) -C $@ $(call gen-cross-prefix,$@)
 
 clean:
-       @rm -rf *.boot *.o *.bootsect
+       for target in $(TARGET_LIST); do \
+               $(MAKE) -C $$target clean; \
+       done

diff --git a/tests/migration/i386/Makefile b/tests/migration/i386/Makefile
new file mode 100644 (file)
index 0000000..5c03241
--- /dev/null
+++ b/tests/migration/i386/Makefile
@@ -0,0 +1,22 @@
+# To specify cross compiler prefix, use CROSS_PREFIX=
+#   $ make CROSS_PREFIX=x86_64-linux-gnu-
+
+.PHONY: all clean
+all: a-b-bootblock.h
+
+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: a-b-bootblock.S
+       $(CROSS_PREFIX)gcc -m32 -march=i486 -c $< -o $@
+
+clean:
+       @rm -rf *.boot *.o *.bootsect

diff --git a/tests/migration/i386/a-b-bootblock.S b/tests/migration/i386/a-b-bootblock.S
new file mode 100644 (file)
index 0000000..3f97f28
--- /dev/null
+++ b/tests/migration/i386/a-b-bootblock.S
@@ -0,0 +1,88 @@
+# x86 bootblock used in migration test
+#  repeatedly increments the first byte of each page in a 100MB
+#  range.
+#  Outputs an initial 'A' on serial followed by repeated 'B's
+#
+# Copyright (c) 2016 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
+
+
+.code16
+.org 0x7c00
+        .file   "fill.s"
+        .text
+        .globl  start
+        .type   start, @function
+start:             # at 0x7c00 ?
+        cli
+        lgdt gdtdesc
+        mov $1,%eax
+        mov %eax,%cr0  # Protected mode enable
+        data32 ljmp $8,$0x7c20
+
+.org 0x7c20
+.code32
+        # A20 enable - not sure I actually need this
+        inb $0x92,%al
+        or  $2,%al
+        outb %al, $0x92
+
+        # set up DS for the whole of RAM (needed on KVM)
+        mov $16,%eax
+        mov %eax,%ds
+
+        mov $65,%ax
+        mov $0x3f8,%dx
+        outb %al,%dx
+
+        # bl keeps a counter so we limit the output speed
+        mov $0, %bl
+mainloop:
+        # Start from 1MB
+        mov $(1024*1024),%eax
+innerloop:
+        incb (%eax)
+        add $4096,%eax
+        cmp $(100*1024*1024),%eax
+        jl innerloop
+
+        inc %bl
+        jnz mainloop
+
+        mov $66,%ax
+        mov $0x3f8,%dx
+        outb %al,%dx
+
+        jmp mainloop
+
+        # GDT magic from old (GPLv2)  Grub startup.S
+        .p2align        2       /* force 4-byte alignment */
+gdt:
+        .word   0, 0
+        .byte   0, 0, 0, 0
+
+        /* -- code segment --
+         * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present
+         * type = 32bit code execute/read, DPL = 0
+         */
+        .word   0xFFFF, 0
+        .byte   0, 0x9A, 0xCF, 0
+
+        /* -- data segment --
+         * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present
+         * type = 32 bit data read/write, DPL = 0
+         */
+        .word   0xFFFF, 0
+        .byte   0, 0x92, 0xCF, 0
+
+gdtdesc:
+        .word   0x27                    /* limit */
+        .long   gdt                     /* addr */
+
+/* I'm a bootable disk */
+.org 0x7dfe
+        .byte 0x55
+        .byte 0xAA

diff --git a/tests/migration/i386/a-b-bootblock.h b/tests/migration/i386/a-b-bootblock.h
new file mode 100644 (file)
index 0000000..7d459d4
--- /dev/null
+++ b/tests/migration/i386/a-b-bootblock.h
@@ -0,0 +1,51 @@
+/* This file is automatically generated from the assembly file in
+ * tests/migration/i386. Edit that file and then run "make all"
+ * inside tests/migration to update, and then remember to send both
+ * the header and the assembler differences in your patch submission.
+ */
+unsigned char x86_bootsect[] = {
+  0xfa, 0x0f, 0x01, 0x16, 0x74, 0x7c, 0x66, 0xb8, 0x01, 0x00, 0x00, 0x00,
+  0x0f, 0x22, 0xc0, 0x66, 0xea, 0x20, 0x7c, 0x00, 0x00, 0x08, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe4, 0x92, 0x0c, 0x02,
+  0xe6, 0x92, 0xb8, 0x10, 0x00, 0x00, 0x00, 0x8e, 0xd8, 0x66, 0xb8, 0x41,
+  0x00, 0x66, 0xba, 0xf8, 0x03, 0xee, 0xb3, 0x00, 0xb8, 0x00, 0x00, 0x10,
+  0x00, 0xfe, 0x00, 0x05, 0x00, 0x10, 0x00, 0x00, 0x3d, 0x00, 0x00, 0x40,
+  0x06, 0x7c, 0xf2, 0xfe, 0xc3, 0x75, 0xe9, 0x66, 0xb8, 0x42, 0x00, 0x66,
+  0xba, 0xf8, 0x03, 0xee, 0xeb, 0xde, 0x66, 0x90, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x9a, 0xcf, 0x00,
+  0xff, 0xff, 0x00, 0x00, 0x00, 0x92, 0xcf, 0x00, 0x27, 0x00, 0x5c, 0x7c,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0xaa
+};
+

diff --git a/tests/migration/x86-a-b-bootblock.S b/tests/migration/x86-a-b-bootblock.S
deleted file mode 100644 (file)
index b164264..0000000
--- a/tests/migration/x86-a-b-bootblock.S
+++ /dev/null
@@ -1,92 +0,0 @@
-# x86 bootblock used in migration test
-#  repeatedly increments the first byte of each page in a 100MB
-#  range.
-#  Outputs an initial 'A' on serial followed by repeated 'B's
-#
-# run   tests/migration/rebuild-x86-bootblock.sh
-#   to regenerate the hex, and remember to include both the .h and .s
-#   in any patches.
-#
-# Copyright (c) 2016 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
-
-
-.code16
-.org 0x7c00
-        .file   "fill.s"
-        .text
-        .globl  start
-        .type   start, @function
-start:             # at 0x7c00 ?
-        cli
-        lgdt gdtdesc
-        mov $1,%eax
-        mov %eax,%cr0  # Protected mode enable
-        data32 ljmp $8,$0x7c20
-
-.org 0x7c20
-.code32
-        # A20 enable - not sure I actually need this
-        inb $0x92,%al
-        or  $2,%al
-        outb %al, $0x92
-
-        # set up DS for the whole of RAM (needed on KVM)
-        mov $16,%eax
-        mov %eax,%ds
-
-        mov $65,%ax
-        mov $0x3f8,%dx
-        outb %al,%dx
-
-        # bl keeps a counter so we limit the output speed
-        mov $0, %bl
-mainloop:
-        # Start from 1MB
-        mov $(1024*1024),%eax
-innerloop:
-        incb (%eax)
-        add $4096,%eax
-        cmp $(100*1024*1024),%eax
-        jl innerloop
-
-        inc %bl
-        jnz mainloop
-
-        mov $66,%ax
-        mov $0x3f8,%dx
-        outb %al,%dx
-
-        jmp mainloop
-
-        # GDT magic from old (GPLv2)  Grub startup.S
-        .p2align        2       /* force 4-byte alignment */
-gdt:
-        .word   0, 0
-        .byte   0, 0, 0, 0
-
-        /* -- code segment --
-         * base = 0x00000000, limit = 0xFFFFF (4 KiB Granularity), present
-         * type = 32bit code execute/read, DPL = 0
-         */
-        .word   0xFFFF, 0
-        .byte   0, 0x9A, 0xCF, 0
-
-        /* -- data segment --
-         * base = 0x00000000, limit 0xFFFFF (4 KiB Granularity), present
-         * type = 32 bit data read/write, DPL = 0
-         */
-        .word   0xFFFF, 0
-        .byte   0, 0x92, 0xCF, 0
-
-gdtdesc:
-        .word   0x27                    /* limit */
-        .long   gdt                     /* addr */
-
-/* I'm a bootable disk */
-.org 0x7dfe
-        .byte 0x55
-        .byte 0xAA

diff --git a/tests/migration/x86-a-b-bootblock.h b/tests/migration/x86-a-b-bootblock.h
deleted file mode 100644 (file)
index 78a151f..0000000
--- a/tests/migration/x86-a-b-bootblock.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/* 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.
- */
-unsigned char x86_bootsect[] = {
-  0xfa, 0x0f, 0x01, 0x16, 0x74, 0x7c, 0x66, 0xb8, 0x01, 0x00, 0x00, 0x00,
-  0x0f, 0x22, 0xc0, 0x66, 0xea, 0x20, 0x7c, 0x00, 0x00, 0x08, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe4, 0x92, 0x0c, 0x02,
-  0xe6, 0x92, 0xb8, 0x10, 0x00, 0x00, 0x00, 0x8e, 0xd8, 0x66, 0xb8, 0x41,
-  0x00, 0x66, 0xba, 0xf8, 0x03, 0xee, 0xb3, 0x00, 0xb8, 0x00, 0x00, 0x10,
-  0x00, 0xfe, 0x00, 0x05, 0x00, 0x10, 0x00, 0x00, 0x3d, 0x00, 0x00, 0x40,
-  0x06, 0x7c, 0xf2, 0xfe, 0xc3, 0x75, 0xe9, 0x66, 0xb8, 0x42, 0x00, 0x66,
-  0xba, 0xf8, 0x03, 0xee, 0xeb, 0xde, 0x66, 0x90, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x9a, 0xcf, 0x00,
-  0xff, 0xff, 0x00, 0x00, 0x00, 0x92, 0xcf, 0x00, 0x27, 0x00, 0x5c, 0x7c,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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