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BVK Chaitanya 2010-04-09 22:32:58 +05:30
commit 68b31b54f5
14 changed files with 363 additions and 104 deletions
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57
ChangeLog
View file

@ -1,3 +1,60 @@
2010-04-09 BVK Chaitanya <bvk.groups@gmail.com>
While and until loops support to GRUB script.
* include/grub/script_sh.h (grub_script_cmdwhile): New struct.
(grub_script_create_cmdwhile): New function prototype.
(grub_script_execute_cmdwhile): New function prototype.
* script/execute.c (grub_script_execute_cmdwhile): New function.
* script/parser.y (command): New commands.
(whilecmd): New grammar rule.
(untilcmd): New grammar rule.
* script/script.c (grub_script_create_cmdwhile): New function.
* util/grub-script-check.c (grub_script_execute_cmdwhile): New
function.
* tests/grub_script_while1.in: New testcase.
* conf/tests.rmk: Rule for new testcase.
2010-04-09 Vladimir Serbinenko <phcoder@gmail.com>
* util/grub.d/00_header.in: Add few missing quotes. Recognise *.jpeg
as *.jpg.
2010-04-09 Mario Vazquez <mariovazq@gmail.com>
GRUB_BACKGROUND support.
* util/grub-mkconfig.in: Export GRUB_BACKGROUND.
* util/grub.d/00_header.in: Parse GRUB_BACKGROUND.
2010-04-09 Vladimir Serbinenko <phcoder@gmail.com>
Load fonts and modules for gfxmenu in grub-mkconfig.
Idea by: Mario Vazquez
* util/grub.d/00_header.in: Load pf2 and image modules.
2010-04-09 Vladimir Serbinenko <phcoder@gmail.com>
grub-mkconfig multiple terminal support.
* util/grub-mkconfig.in: Handle multiple terminals correctly.
* util/grub.d/00_header.in: Likewise.
2010-04-09 Vladimir Serbinenko <phcoder@gmail.com>
* Makefile.in: Specify files explicitly instead of using $< and $@ since
we use cd $(srcdir).
2010-04-08 Colin Watson <cjwatson@ubuntu.com>
* util/grub.d/10_linux.in: Only use the first word of
GRUB_DISTRIBUTOR for --class, to avoid problems if somebody puts
spaces in GRUB_DISTRIBUTOR.
* util/grub.d/10_kfreebsd.in: Likewise.
* util/grub.d/10_hurd.in: Likewise.
2010-04-06 BVK Chaitanya <bvk.groups@gmail.com>
Fix unit testing framework for Qemu 0.12.

4
Makefile.in
View file

@ -530,8 +530,8 @@ genkernsyms.sh: genkernsyms.sh.in config.status
$(SHELL) ./config.status
$(srcdir)/po/$(PACKAGE).pot: po/POTFILES po/POTFILES-shell
cd $(srcdir) && $(XGETTEXT) -ctranslate --from-code=utf-8 -o $@ -f $< --keyword=_ --keyword=N_
cd $(srcdir) && $(XGETTEXT) -ctranslate --from-code=utf-8 -o $@ -f po/POTFILES-shell -j --language=Shell
cd $(srcdir) && $(XGETTEXT) -ctranslate --from-code=utf-8 -o po/$(PACKAGE).pot -f po/POTFILES --keyword=_ --keyword=N_
cd $(srcdir) && $(XGETTEXT) -ctranslate --from-code=utf-8 -o po/$(PACKAGE).pot -f po/POTFILES-shell -j --language=Shell
$(foreach lang, $(LINGUAS), $(srcdir)/po/$(lang).po): po/$(PACKAGE).pot
$(MSGMERGE) -U $@ $^

12
conf/tests.rmk
View file

@ -53,15 +53,18 @@ grub_script_vars1_SOURCES = tests/grub_script_vars1.in
check_SCRIPTS += grub_script_for1
grub_script_for1_SOURCES = tests/grub_script_for1.in
check_SCRIPTS += grub_script_while1
grub_script_while1_SOURCES = tests/grub_script_while1.in
check_SCRIPTS += grub_script_if
grub_script_if_SOURCES = tests/grub_script_if.in
check_SCRIPTS += grub_script_blanklines
grub_script_blanklines_SOURCES = tests/grub_script_blanklines.in
check_SCRIPTS += grub_script_final_semicolon
grub_script_final_semicolon_SOURCES = tests/grub_script_final_semicolon.in
check_SCRIPTS += grub_script_if
grub_script_if_SOURCES = tests/grub_script_if.in
# List of tests to execute on "make check"
# SCRIPTED_TESTS = example_scripted_test
# SCRIPTED_TESTS += example_grub_script_test
@ -72,9 +75,10 @@ SCRIPTED_TESTS = grub_script_echo1
SCRIPTED_TESTS += grub_script_echo_keywords
SCRIPTED_TESTS += grub_script_vars1
SCRIPTED_TESTS += grub_script_for1
SCRIPTED_TESTS += grub_script_while1
SCRIPTED_TESTS += grub_script_if
SCRIPTED_TESTS += grub_script_blanklines
SCRIPTED_TESTS += grub_script_final_semicolon
SCRIPTED_TESTS += grub_script_if
# dependencies between tests and testing-tools

22
include/grub/script_sh.h
View file

@ -121,6 +121,21 @@ struct grub_script_cmdfor
struct grub_script_cmd *list;
};
/* A while/until command. */
struct grub_script_cmdwhile
{
struct grub_script_cmd cmd;
/* The command list used as condition. */
struct grub_script_cmd *cond;
/* The command list executed in each loop. */
struct grub_script_cmd *list;
/* The flag to indicate this as "until" loop. */
int until;
};
/* A menu entry generate statement. */
struct grub_script_cmd_menuentry
{
@ -234,6 +249,12 @@ grub_script_create_cmdfor (struct grub_parser_param *state,
struct grub_script_arglist *words,
struct grub_script_cmd *list);
struct grub_script_cmd *
grub_script_create_cmdwhile (struct grub_parser_param *state,
struct grub_script_cmd *cond,
struct grub_script_cmd *list,
int is_an_until_loop);
struct grub_script_cmd *
grub_script_create_cmdmenu (struct grub_parser_param *state,
struct grub_script_arglist *arglist,
@ -283,6 +304,7 @@ grub_err_t grub_script_execute_cmdline (struct grub_script_cmd *cmd);
grub_err_t grub_script_execute_cmdblock (struct grub_script_cmd *cmd);
grub_err_t grub_script_execute_cmdif (struct grub_script_cmd *cmd);
grub_err_t grub_script_execute_cmdfor (struct grub_script_cmd *cmd);
grub_err_t grub_script_execute_cmdwhile (struct grub_script_cmd *cmd);
grub_err_t grub_script_execute_menuentry (struct grub_script_cmd *cmd);
/* Execute any GRUB pre-parsed command or script. */

38
script/execute.c
View file

@ -26,13 +26,24 @@
#include <grub/lib/arg.h>
#include <grub/normal.h>
/* Max digits for a char is 3 (0xFF is 255), similarly for an int it
is sizeof (int) * 3, and one extra for a possible -ve sign. */
#define ERRNO_DIGITS_MAX (sizeof (int) * 3 + 1)
static grub_err_t
grub_script_execute_cmd (struct grub_script_cmd *cmd)
{
int ret;
char errnobuf[ERRNO_DIGITS_MAX + 1];
if (cmd == 0)
return 0;
return cmd->exec (cmd);
ret = cmd->exec (cmd);
grub_snprintf (errnobuf, sizeof (errnobuf), "%d", ret);
grub_env_set ("?", errnobuf);
return ret;
}
#define ARG_ALLOCATION_UNIT (32 * sizeof (char))
@ -260,13 +271,14 @@ grub_script_execute_cmdline (struct grub_script_cmd *cmd)
grub_err_t
grub_script_execute_cmdblock (struct grub_script_cmd *cmd)
{
int ret = 0;
struct grub_script_cmdblock *cmdblock = (struct grub_script_cmdblock *) cmd;
/* Loop over every command and execute it. */
for (cmd = cmdblock->cmdlist; cmd; cmd = cmd->next)
grub_script_execute_cmd (cmd);
ret = grub_script_execute_cmd (cmd);
return 0;
return ret;
}
/* Execute an if statement. */
@ -317,6 +329,26 @@ grub_script_execute_cmdfor (struct grub_script_cmd *cmd)
return result;
}
/* Execute a "while" or "until" command. */
grub_err_t
grub_script_execute_cmdwhile (struct grub_script_cmd *cmd)
{
int cond;
int result;
struct grub_script_cmdwhile *cmdwhile = (struct grub_script_cmdwhile *) cmd;
result = 0;
do {
cond = grub_script_execute_cmd (cmdwhile->cond);
if (cmdwhile->until ? !cond : cond)
break;
result = grub_script_execute_cmd (cmdwhile->list);
} while (1); /* XXX Put a check for ^C here */
return result;
}
/* Execute the menu entry generate statement. */
grub_err_t
grub_script_execute_menuentry (struct grub_script_cmd *cmd)

30
script/parser.y
View file

@ -74,8 +74,10 @@
%token <arg> GRUB_PARSER_TOKEN_WORD "word"
%type <arglist> word argument arguments0 arguments1
%type <cmd> script_init script grubcmd ifclause ifcmd forcmd command
%type <cmd> commands1 menuentry statement
%type <cmd> script_init script
%type <cmd> grubcmd ifclause ifcmd forcmd whilecmd untilcmd
%type <cmd> command commands1 menuentry statement
%pure-parser
%lex-param { struct grub_parser_param *state };
@ -174,6 +176,8 @@ grubcmd: word arguments0
command: grubcmd { $$ = $1; }
| ifcmd { $$ = $1; }
| forcmd { $$ = $1; }
| whilecmd { $$ = $1; }
| untilcmd { $$ = $1; }
;
/* A list of commands. */
@ -258,3 +262,25 @@ forcmd: "for" "name"
grub_script_lexer_deref (state->lexerstate);
}
;
whilecmd: "while"
{
grub_script_lexer_ref (state->lexerstate);
}
commands1 delimiters1 "do" commands1 delimiters1 "done"
{
$$ = grub_script_create_cmdwhile (state, $3, $6, 0);
grub_script_lexer_deref (state->lexerstate);
}
;
untilcmd: "until"
{
grub_script_lexer_ref (state->lexerstate);
}
commands1 delimiters1 "do" commands1 delimiters1 "done"
{
$$ = grub_script_create_cmdwhile (state, $3, $6, 1);
grub_script_lexer_deref (state->lexerstate);
}
;

22
script/script.c
View file

@ -245,6 +245,28 @@ grub_script_create_cmdfor (struct grub_parser_param *state,
return (struct grub_script_cmd *) cmd;
}
/* Create a "while" or "until" command. */
struct grub_script_cmd *
grub_script_create_cmdwhile (struct grub_parser_param *state,
struct grub_script_cmd *cond,
struct grub_script_cmd *list,
int is_an_until_loop)
{
struct grub_script_cmdwhile *cmd;
cmd = grub_script_malloc (state, sizeof (*cmd));
if (! cmd)
return 0;
cmd->cmd.exec = grub_script_execute_cmdwhile;
cmd->cmd.next = 0;
cmd->cond = cond;
cmd->list = list;
cmd->until = is_an_until_loop;
return (struct grub_script_cmd *) cmd;
}
/* Create a command that adds a menu entry to the menu. Title is an
argument that is parsed to generate a string that can be used as
the title. The sourcecode for this entry is passed in SOURCECODE.

32
tests/grub_script_while1.in Normal file
View file

@ -0,0 +1,32 @@
#! @builddir@/grub-shell-tester
echo one
foo=""
while test "$foo" != "1111"; do foo="${foo}1"; echo "$foo"; done
echo two
foo=""
while test "$foo" != "aaaa"
do
foo="${foo}a"
echo $foo
done
foo=""
until test "$foo" = "1111"; do foo="${foo}1"; echo $foo; done
foo=""
until test "$foo" = "aaaa"
do
foo="${foo}a"
echo $foo
done
# check "$?" in condition gets its value from while body commands
foo=""
false
while test "$?" != "0"
do
echo $foo
foo="${foo}1"
test "$foo" = "111111"
done

54
util/grub-mkconfig.in
View file

@ -140,27 +140,31 @@ if [ "x${GRUB_TERMINAL}" != "x" ] ; then
GRUB_TERMINAL_OUTPUT="${GRUB_TERMINAL}"
fi
case x${GRUB_TERMINAL_OUTPUT} in
x | xgfxterm)
termoutdefault=0
if [ "x${GRUB_TERMINAL_OUTPUT}" == x ]; then
GRUB_TERMINAL_OUTPUT=gfxterm;
termoutdefault=1;
fi
for x in ${GRUB_TERMINAL_OUTPUT}; do
if [ x${x} == xgfxterm ]; then
# If this platform supports gfxterm, try to use it.
if test -e ${grub_prefix}/gfxterm.mod ; then
if ! test -e ${grub_prefix}/gfxterm.mod ; then
if [ "x$termoutdefault" != "x1" ]; then
echo "gfxterm isn't available on your platform" >&2 ; exit 1
fi
GRUB_TERMINAL_OUTPUT=
break;
fi
# FIXME: this should do something smarter than just loading first
# video backend.
GRUB_VIDEO_BACKEND=$(head -n 1 ${grub_prefix}/video.lst || true)
if [ -n "${GRUB_VIDEO_BACKEND}" ] ; then
GRUB_TERMINAL_OUTPUT=gfxterm
elif [ "${GRUB_TERMINAL_OUTPUT}" = "gfxterm" ] ; then
if [ -z "${GRUB_VIDEO_BACKEND}" ] ; then
if [ "x$termoutdefault" != "x1" ]; then
echo "No suitable backend could be found for gfxterm." >&2 ; exit 1
fi
GRUB_TERMINAL_OUTPUT=
fi
;;
xconsole | xserial | xofconsole) ;;
*) echo "Invalid output terminal \"${GRUB_TERMINAL_OUTPUT}\"" >&2 ; exit 1 ;;
esac
# check for terminals that require fonts
case ${GRUB_TERMINAL_OUTPUT} in
gfxterm)
if [ -n "$GRUB_FONT" ] ; then
if is_path_readable_by_grub ${GRUB_FONT} > /dev/null ; then
GRUB_FONT_PATH=${GRUB_FONT}
@ -186,14 +190,23 @@ case ${GRUB_TERMINAL_OUTPUT} in
done
fi
if [ -z "${GRUB_FONT_PATH}" ] ; then
# fallback to the native terminal for this platform
unset GRUB_TERMINAL_OUTPUT
if [ "x$termoutdefault" != "x1" ]; then
echo "No font for gfxterm found." >&2 ; exit 1
fi
;;
*)
GRUB_TERMINAL_OUTPUT=
fi
fi
done
for x in ${GRUB_TERMINAL_OUTPUT}; do
case "x${x}" in
xgfxterm) ;;
xconsole | xserial | xofconsole)
# make sure all our children behave in conformance with ascii..
export LANG=C
esac
export LANG=C;;
*) echo "Invalid output terminal \"${GRUB_TERMINAL_OUTPUT}\"" >&2 ; exit 1 ;;
esac
done
# These are defined in this script, export them here so that user can
# override them.
@ -220,6 +233,7 @@ export GRUB_DEFAULT \
GRUB_DISABLE_LINUX_UUID \
GRUB_DISABLE_LINUX_RECOVERY \
GRUB_GFXMODE \
GRUB_BACKGROUND \
GRUB_THEME \
GRUB_GFXPAYLOAD_LINUX \
GRUB_DISABLE_OS_PROBER \

6
util/grub-script-check.c
View file

@ -87,6 +87,12 @@ grub_script_execute_cmdfor (struct grub_script_cmd *cmd __attribute__ ((unused))
return 0;
}
grub_err_t
grub_script_execute_cmdwhile (struct grub_script_cmd *cmd __attribute__ ((unused)))
{
return 0;
}
grub_err_t
grub_script_execute_menuentry (struct grub_script_cmd *cmd __attribute__ ((unused)))
{

110
util/grub.d/00_header.in
View file

@ -59,8 +59,18 @@ function savedefault {
}
EOF
case ${GRUB_TERMINAL_INPUT}:${GRUB_TERMINAL_OUTPUT} in
serial:* | *:serial)
serial=0;
gfxterm=0;
for x in ${GRUB_TERMINAL_INPUT} ${GRUB_TERMINAL_OUTPUT}; do
if [ xserial = "x$x" ]; then
serial=1;
fi
if [ xgfxterm = "x$x" ]; then
gfxterm=1;
fi
done
if [ "x$serial" = x1 ]; then
if ! test -e ${grub_prefix}/serial.mod ; then
echo "Serial terminal not available on this platform." >&2 ; exit 1
fi
@ -70,8 +80,71 @@ case ${GRUB_TERMINAL_INPUT}:${GRUB_TERMINAL_OUTPUT} in
GRUB_SERIAL_COMMAND=serial
fi
echo "${GRUB_SERIAL_COMMAND}"
;;
esac
fi
if [ "x$gfxterm" = x1 ]; then
# Make the font accessible
prepare_grub_to_access_device `${grub_probe} --target=device "${GRUB_FONT_PATH}"`
cat << EOF
if loadfont `make_system_path_relative_to_its_root "${GRUB_FONT_PATH}"` ; then
set gfxmode=${GRUB_GFXMODE}
insmod gfxterm
insmod ${GRUB_VIDEO_BACKEND}
EOF
if [ "x$GRUB_THEME" != x ] && [ -f "$GRUB_THEME" ] \
&& is_path_readable_by_grub "$GRUB_THEME"; then
echo "Found theme: $GRUB_THEME" >&2
prepare_grub_to_access_device `${grub_probe} --target=device "$GRUB_THEME"` | sed -e "s/^/ /"
cat << EOF
insmod gfxmenu
EOF
themedir="`dirname "$GRUB_THEME"`"
for x in "$themedir"/*.pf2 "$themedir"/f/*.pf2; do
if [ -f "$x" ]; then
cat << EOF
loadfont (\$root)`make_system_path_relative_to_its_root $x`
EOF
fi
done
if [ x"`echo "$themedir"/*.jpg`" != x"$themedir/*.jpg" ] || [ x"`echo "$themedir"/*.jpeg`" != x"$themedir/*.jpeg" ]; then
cat << EOF
insmod jpeg
EOF
fi
if [ x"`echo "$themedir"/*.png`" != x"$themedir/*.png" ]; then
cat << EOF
insmod png
EOF
fi
if [ x"`echo "$themedir"/*.tga`" != x"$themedir/*.tga" ]; then
cat << EOF
insmod tga
EOF
fi
cat << EOF
set theme=(\$root)`make_system_path_relative_to_its_root $GRUB_THEME`
EOF
elif [ "x$GRUB_BACKGROUND" != x ] && [ -f "$GRUB_BACKGROUND" ] \
&& is_path_readable_by_grub "$GRUB_BACKGROUND"; then
echo "Found background: $GRUB_BACKGROUND" >&2
case "$GRUB_BACKGROUND" in
*.png) reader=png ;;
*.tga) reader=tga ;;
*.jpg|*.jpeg) reader=jpeg ;;
*) echo "Unsupported image format" >&2; exit 1 ;;
esac
prepare_grub_to_access_device `${grub_probe} --target=device "$GRUB_BACKGROUND"` | sed -e "s/^/ /"
cat << EOF
insmod $reader
background_image -m stretch `make_system_path_relative_to_its_root "$GRUB_BACKGROUND"`
EOF
fi
cat << EOF
fi
EOF
fi
case x${GRUB_TERMINAL_INPUT} in
x)
@ -89,35 +162,6 @@ EOF
esac
case x${GRUB_TERMINAL_OUTPUT} in
xgfxterm)
# Make the font accessible
prepare_grub_to_access_device `${grub_probe} --target=device ${GRUB_FONT_PATH}`
cat << EOF
if loadfont `make_system_path_relative_to_its_root ${GRUB_FONT_PATH}` ; then
set gfxmode=${GRUB_GFXMODE}
insmod gfxterm
insmod ${GRUB_VIDEO_BACKEND}
if terminal_output gfxterm ; then true ; else
# For backward compatibility with versions of terminal.mod that don't
# understand terminal_output
terminal gfxterm
fi
EOF
if [ x$GRUB_THEME != x ] && [ -f $GRUB_THEME ] \
&& is_path_readable_by_grub $GRUB_THEME; then
echo "Found theme: $GRUB_THEME" >&2
prepare_grub_to_access_device `${grub_probe} --target=device $GRUB_THEME` | sed -e "s/^/ /"
cat << EOF
insmod gfxmenu
set theme=(\$root)`make_system_path_relative_to_its_root $GRUB_THEME`
set menuviewer=gfxmenu
EOF
fi
cat << EOF
fi
EOF
;;
x)
# Just use the native terminal
;;

2
util/grub.d/10_hurd.in
View file

@ -27,7 +27,7 @@ if [ "x${GRUB_DISTRIBUTOR}" = "x" ] ; then
OS=GNU
else
OS="${GRUB_DISTRIBUTOR} GNU/Hurd"
CLASS="--class $(echo ${GRUB_DISTRIBUTOR} | tr '[A-Z]' '[a-z]') ${CLASS}"
CLASS="--class $(echo ${GRUB_DISTRIBUTOR} | tr '[A-Z]' '[a-z]' | cut -d' ' -f1) ${CLASS}"
fi
at_least_one=false

2
util/grub.d/10_kfreebsd.in
View file

@ -30,7 +30,7 @@ CLASS="--class os"
case "${GRUB_DISTRIBUTOR}" in
Debian)
OS="${GRUB_DISTRIBUTOR} GNU/kFreeBSD"
CLASS="--class $(echo ${GRUB_DISTRIBUTOR} | tr '[A-Z]' '[a-z]') --class gnu-kfreebsd --class gnu ${CLASS}"
CLASS="--class $(echo ${GRUB_DISTRIBUTOR} | tr '[A-Z]' '[a-z]' | cut -d' ' -f1) --class gnu-kfreebsd --class gnu ${CLASS}"
;;
*)
OS="FreeBSD"

2
util/grub.d/10_linux.in
View file

@ -31,7 +31,7 @@ if [ "x${GRUB_DISTRIBUTOR}" = "x" ] ; then
OS=GNU/Linux
else
OS="${GRUB_DISTRIBUTOR} GNU/Linux"
CLASS="--class $(echo ${GRUB_DISTRIBUTOR} | tr '[A-Z]' '[a-z]') ${CLASS}"
CLASS="--class $(echo ${GRUB_DISTRIBUTOR} | tr '[A-Z]' '[a-z]' | cut -d' ' -f1) ${CLASS}"
fi
# loop-AES arranges things so that /dev/loop/X can be our root device, but