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Add memdisk support to grub-emu.

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Use it to add custom files, so that tests which need them work.
This commit is contained in:
Vladimir Serbinenko 2016-01-05 12:59:44 +01:00
parent 3f430a0126
commit f86fd54cf0
2 changed files with 49 additions and 4 deletions
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42
grub-core/kern/emu/main.c
View file

@ -86,11 +86,16 @@ grub_machine_fini (int flags)
#define OPT_MEMDISK 257
static struct argp_option options[] = {
{"root", 'r', N_("DEVICE_NAME"), 0, N_("Set root device."), 2},
{"device-map", 'm', N_("FILE"), 0,
/* TRANSLATORS: There are many devices in device map. */
N_("use FILE as the device map [default=%s]"), 0},
{"memdisk", OPT_MEMDISK, N_("FILE"), 0,
/* TRANSLATORS: There are many devices in device map. */
N_("use FILE as memdisk"), 0},
{"directory", 'd', N_("DIR"), 0,
N_("use GRUB files in the directory DIR [default=%s]"), 0},
{"verbose", 'v', 0, 0, N_("print verbose messages."), 0},
@ -119,6 +124,7 @@ help_filter (int key, const char *text, void *input __attribute__ ((unused)))
struct arguments
{
const char *dev_map;
const char *mem_disk;
int hold;
};
@ -131,6 +137,9 @@ argp_parser (int key, char *arg, struct argp_state *state)
switch (key)
{
case OPT_MEMDISK:
arguments->mem_disk = arg;
break;
case 'r':
free (root_dev);
root_dev = xstrdup (arg);
@ -180,9 +189,13 @@ main (int argc, char *argv[])
struct arguments arguments =
{
.dev_map = DEFAULT_DEVICE_MAP,
.hold = 0
.hold = 0,
.mem_disk = 0,
};
volatile int hold = 0;
size_t total_module_size = sizeof (struct grub_module_info), memdisk_size = 0;
struct grub_module_info *modinfo;
char *mods;
grub_util_host_init (&argc, &argv);
@ -194,6 +207,33 @@ main (int argc, char *argv[])
exit(1);
}
if (arguments.mem_disk)
{
memdisk_size = ALIGN_UP(grub_util_get_image_size (arguments.mem_disk), 512);
total_module_size += memdisk_size + sizeof (struct grub_module_header);
}
mods = xmalloc (total_module_size);
modinfo = grub_memset (mods, 0, total_module_size);
mods = (char *) (modinfo + 1);
modinfo->magic = GRUB_MODULE_MAGIC;
modinfo->offset = sizeof (struct grub_module_info);
modinfo->size = total_module_size;
if (arguments.mem_disk)
{
struct grub_module_header *header = (struct grub_module_header *) mods;
header->type = OBJ_TYPE_MEMDISK;
header->size = memdisk_size + sizeof (*header);
mods += sizeof (*header);
grub_util_load_image (arguments.mem_disk, mods);
mods += memdisk_size;
}
grub_modbase = (grub_addr_t) modinfo;
hold = arguments.hold;
/* Wait until the ARGS.HOLD variable is cleared by an attached debugger. */
if (hold && verbosity > 0)

11
tests/util/grub-shell.in
View file

@ -449,7 +449,8 @@ if [ x$boot = xnet ]; then
[ -z "$files" ] || copy_extra_files "$netdir" $files
timeout -s KILL $timeout "${qemu}" ${qemuopts} ${serial_null} -serial file:/dev/stdout -boot n -net "user,tftp=$netdir,bootfile=/boot/grub/${grub_modinfo_target_cpu}-${grub_modinfo_platform}/core.$netbootext" -net nic | cat | tr -d "\r" | do_trim
elif [ x$boot = xemu ]; then
grubdir="$(mktemp -d "${TMPDIR:-/tmp}/tmp.XXXXXXXXXX")"
rootdir="$(mktemp -d "${TMPDIR:-/tmp}/tmp.XXXXXXXXXX")"
grubdir="$rootdir/boot/grub"
mkdir -p "$grubdir/fonts"
mkdir -p "$grubdir/themes"
mkdir -p "$grubdir/locale"
@ -462,8 +463,12 @@ elif [ x$boot = xemu ]; then
done
cp "${cfgfile}" "$grubdir/grub.cfg"
cp "${source}" "$grubdir/testcase.cfg"
@builddir@/grub-core/grub-emu -m "$device_map" -d "$grubdir" | tr -d "\r" | do_trim
rm -rf "$grubdir"
[ -z "$files" ] || copy_extra_files "$rootdir" $files
roottar="$(mktemp "${TMPDIR:-/tmp}/tmp.XXXXXXXXXX")"
(cd "$rootdir"; tar cf "$roottar" .)
@builddir@/grub-core/grub-emu -m "$device_map" --memdisk "$roottar" -r memdisk -d "/boot/grub" | tr -d "\r" | do_trim
test -n "$debug" || rm -rf "$rootdir"
test -n "$debug" || rm -f "$roottar"
else
timeout -s KILL $timeout "${qemu}" ${qemuopts} ${serial_null} -serial file:/dev/stdout -${device}"${isofile}" ${bootdev} | cat | tr -d "\r" | do_trim
fi