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Replace --enable-grub-emu-modules with grub-emu-lite.

Browse source 
* kern/emu/cache.S: New file.  Wrapper for $target_cpu specific
	cache.S.

	* include/grub/emu/misc.h (grub_emu_init): New prototype.
	* kern/emu/full.c: New file. For grub-emu specific initialization.
	* kern/emu/lite.c: New file. For grub-emu-lite initialization.
	* kern/emu/main.c: Call initialization function grub_emu_init.

	* Makefile.in: Include grub-emu-lite in install.
	* commands/parttool.c: Use grub_no_autoload to differentiate
	between grub-emu and grub-emu-lite.
	* include/grub/misc.h: New variable grub_no_autoload.

	* conf/any-emu.rmk: New rules for grub-emu-lite.
	* configure.ac: Remove --enable-grub-emu-modules.
	* genmk.rb: Cleanup unnecessary rules.
	* include/grub/dl.h: Remove GRUB_NO_MODULES macro.

	* normal/main.c: Don't load list files on grub-emu-lite.
	* util/misc.c (grub_arch_sync_caches): Removed.
This commit is contained in:
BVK Chaitanya 2010-08-23 23:06:29 +05:30
commit 645586e686
15 changed files with 191 additions and 117 deletions
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25
ChangeLog
View file

@ -1,3 +1,28 @@
2010-08-23 BVK Chaitanya <bvk.groups@gmail.com>
Replace --enable-grub-emu-modules with grub-emu-lite.
* kern/emu/cache.S: New file. Wrapper for $target_cpu specific
cache.S.
* include/grub/emu/misc.h (grub_emu_init): New prototype.
* kern/emu/full.c: New file. For grub-emu specific initialization.
* kern/emu/lite.c: New file. For grub-emu-lite initialization.
* kern/emu/main.c: Call initialization function grub_emu_init.
* Makefile.in: Include grub-emu-lite in install.
* commands/parttool.c: Use grub_no_autoload to differentiate
between grub-emu and grub-emu-lite.
* include/grub/misc.h: New variable grub_no_autoload.
* conf/any-emu.rmk: New rules for grub-emu-lite.
* configure.ac: Remove --enable-grub-emu-modules.
* genmk.rb: Cleanup unnecessary rules.
* include/grub/dl.h: Remove GRUB_NO_MODULES macro.
* normal/main.c: Don't load list files on grub-emu-lite.
* util/misc.c (grub_arch_sync_caches): Removed.
2010-08-23 Colin Watson <cjwatson@ubuntu.com>
* kern/mips/startup.S (grub_prefix): Update comment to refer to

14
Makefile.in
View file

@ -44,7 +44,6 @@ pkglibdir = $(libdir)/`echo @PACKAGE_TARNAME@/$(target_cpu)-$(platform) | sed '
# Internationalization library.
LIBINTL = @LIBINTL@
TARGET_NO_MODULES = @TARGET_NO_MODULES@
# Util library.
LIBUTIL = @LIBUTIL@
@ -193,17 +192,10 @@ include $(srcdir)/conf/tests.mk
-include $(wildcard $(GRUB_CONTRIB)/*/conf/common.mk)
endif
ifeq ($(TARGET_NO_MODULES), yes)
TARGET_CFLAGS += -DGRUB_TARGET_NO_MODULES=1
CFLAGS += -DGRUB_TARGET_NO_MODULES=1
endif
### General targets.
CLEANFILES += $(pkglib_DATA) $(pkgdata_DATA) po/*.mo
ifneq ($(TARGET_NO_MODULES), yes)
pkglib_DATA += moddep.lst command.lst fs.lst partmap.lst parttool.lst handler.lst video.lst crypto.lst terminal.lst
endif
moddep.lst: $(DEFSYMFILES) $(UNDSYMFILES) genmoddep.awk
cat $(DEFSYMFILES) /dev/null \
| $(AWK) -f $(srcdir)/genmoddep.awk $(UNDSYMFILES) > $@ \
@ -309,7 +301,7 @@ build_env.mk: Makefile
) > $@
pkglib_BUILDDIR += config.h grub_script.tab.h
all-local: $(PROGRAMS) $(GRUB_EMU) $(PKGLIB) $(PKGDATA) $(SCRIPTS) $(INFOS) $(MKFILES) $(foreach lang, $(LINGUAS), po/$(lang).mo)
all-local: $(PROGRAMS) $(GRUB_EMU) $(GRUB_EMU_LITE) $(PKGLIB) $(PKGDATA) $(SCRIPTS) $(INFOS) $(MKFILES) $(foreach lang, $(LINGUAS), po/$(lang).mo)
install: install-local
@ -330,7 +322,7 @@ install-local: all
$(INSTALL_DATA) $$dir$$file $(DESTDIR)$(pkgdatadir)/$$dest; \
done
$(SHELL) $(mkinstalldirs) $(DESTDIR)$(bindir) $(DESTDIR)$(mandir)/man1
@list='$(bin_UTILITIES) $(GRUB_EMU)'; for file in $$list; do \
@list='$(bin_UTILITIES) $(GRUB_EMU) $(GRUB_EMU_LITE)'; for file in $$list; do \
if test -f "$$file"; then dir=; else dir="$(srcdir)/"; fi; \
dest="`echo $$file | sed 's,.*/,,' | sed '$(transform)'`"; \
$(INSTALL_PROGRAM) $$dir$$file $(DESTDIR)$(bindir)/$$dest; \
@ -406,7 +398,7 @@ uninstall:
dest="`echo $$file | sed 's,.*/,,'`"; \
rm -f $(DESTDIR)$(pkgdatadir)/$$dest; \
done
@list='$(bin_UTILITIES) $(bin_SCRIPTS) $(GRUB_EMU)'; for file in $$list; do \
@list='$(bin_UTILITIES) $(bin_SCRIPTS) $(GRUB_EMU) $(GRUB_EMU_LITE)'; for file in $$list; do \
dest="`echo $$file | sed 's,.*/,,' | sed '$(transform)'`"; \
rm -f $(DESTDIR)$(bindir)/$$dest; \
rm -f $(DESTDIR)$(mandir)/man1/$$dest.1; \

3
commands/parttool.c
View file

@ -175,7 +175,7 @@ grub_cmd_parttool (grub_command_t cmd __attribute__ ((unused)),
}
/* Load modules. */
#if !GRUB_NO_MODULES
if (! grub_no_autoload)
{
const char *prefix;
prefix = grub_env_get ("prefix");
@ -233,7 +233,6 @@ grub_cmd_parttool (grub_command_t cmd __attribute__ ((unused)),
/* Ignore errors. */
grub_errno = GRUB_ERR_NONE;
}
#endif
if (argc == 1)
return show_help ();

56
conf/any-emu.rmk
View file

@ -1,5 +1,10 @@
# -*- makefile -*-
ifeq ($(target_cpu), sparc64)
COMMON_CFLAGS += -mno-app-regs
COMMON_LDFLAGS += -mno-relax
endif
kernel_img_RELOCATABLE = yes
pkglib_PROGRAMS = kernel.img
kernel_img_SOURCES = kern/device.c kern/disk.c kern/dl.c kern/env.c \
@ -18,17 +23,6 @@ kernel_img_CFLAGS = $(TARGET_CPPFLAGS) $(TARGET_CFLAGS) -Wno-char-subscripts -Wn
kernel_img_LDFLAGS = $(COMMON_LDFLAGS)
TARGET_NO_STRIP = yes
ifneq ($(TARGET_NO_MODULES), yes)
kernel_img_SOURCES += symlist.c kern/$(target_cpu)/dl.c
else
kernel_img_SOURCES += grub_emu_init.c
endif
ifneq ($(target_cpu), i386)
ifneq ($(target_cpu), x86_64)
kernel_img_SOURCES += kern/$(target_cpu)/cache.S
endif
endif
# For halt.mod.
pkglib_MODULES += halt.mod
halt_mod_SOURCES = commands/halt.c
@ -43,6 +37,9 @@ cpuid_mod_LDFLAGS = $(COMMON_LDFLAGS)
endif
grub_emu_LDFLAGS = $(LIBCURSES)
ifeq ($(target_cpu), sparc64)
grub_emu_LDFLAGS += -m64 -melf64_sparc -mno-relax
endif
ifeq ($(enable_grub_emu_usb), yes)
kernel_img_HEADERS += libusb.h
@ -124,13 +121,32 @@ grub_emu_init.c: genemuinit.sh $(pkglib_MODULES) grub_emu_init.h
rm -f $@; echo $(pkglib_MODULES) | sh $(srcdir)/genemuinit.sh $(NM) > $@
DISTCLEANFILES += grub_emu_init.c
CLEANFILES += grub-emu
ifneq ($(TARGET_NO_MODULES), yes)
grub-emu: $(pkglib_PROGRAMS)
$(CC) -o $@ $^ $(grub_emu_LDFLAGS) $(LDFLAGS)
else
grub-emu: $(pkglib_MODULES) $(pkglib_PROGRAMS)
$(CC) -o $@ $^ $(grub_emu_LDFLAGS) $(LDFLAGS)
endif
GRUB_EMU=grub-emu
grub_emu_init.o: grub_emu_init.c grub_emu_init.h
rm -f $@; $(TARGET_CC) $(TARGET_CPPFLAGS) $(TARGET_CFLAGS) -DGRUB_FILE=\"grub_init.c\" -c -o $@ $<
CLEANFILES += grub_emu_init.o
kern_emu_lite.o: kern/emu/lite.c
$(TARGET_CC) $(COMMON_CFLAGS) $(TARGET_CPPFLAGS) $(TARGET_CFLAGS) -DGRUB_FILE=\"kern/emu/lite.c\" -c -o $@ $<
CLEANFILES += kern_emu_lite.o
kern_emu_full.o: kern/emu/full.c
$(TARGET_CC) $(COMMON_CFLAGS) $(TARGET_CPPFLAGS) $(TARGET_CFLAGS) -DGRUB_FILE=\"kern/emu/full.c\" -c -o $@ $<
CLEANFILES += kern_emu_full.o
kern_emu_cache.o: kern/emu/cache.S
$(TARGET_CC) $(COMMON_CFLAGS) $(TARGET_CPPFLAGS) $(TARGET_CFLAGS) $(TARGET_ASFLAGS) -DGRUB_FILE=\"kern/emu/cache.S\" -c -o $@ $<
CLEANFILES += kern_emu_cache.o
symlist.o: symlist.c
$(TARGET_CC) $(COMMON_CFLAGS) $(TARGET_CPPFLAGS) $(TARGET_CFLAGS) -DGRUB_FILE=\"symlist.c\" -c -o $@ $<
CLEANFILES += symlist.o
CLEANFILES += grub-emu-lite
grub-emu-lite: kern_emu_lite.o kern_emu_cache.o symlist.o kernel.img
$(CC) -o $@ $^ $(grub_emu_LDFLAGS) $(LDFLAGS)
GRUB_EMU_LITE=grub-emu-lite
CLEANFILES += grub-emu
grub-emu: $(PREMODFILES) kern_emu_full.o grub_emu_init.o kernel.img
$(CC) -o $@ $^ $(grub_emu_LDFLAGS) $(LDFLAGS)
GRUB_EMU=grub-emu

22
configure.ac
View file

@ -614,10 +614,6 @@ AC_ARG_ENABLE([grub-emu-pci],
[AS_HELP_STRING([--enable-grub-emu-pci],
[build and install the `grub-emu' debugging utility with PCI support (potentially dangerous) (default=no)])])
AC_ARG_ENABLE([grub-emu-modules],
[AS_HELP_STRING([--enable-grub-emu-modules],
[Support module loading in `grub-emu' debugging utility (default=no)])])
if test "$platform" = emu; then
missing_ncurses=
[# Check for curses libraries.]
@ -636,19 +632,6 @@ if test x"$missing_ncurses" = xtrue ; then
AC_MSG_ERROR([grub-emu can't be compiled without ncurses])
fi
if test x"$enable_grub_emu_modules" = xyes ; then
TARGET_NO_MODULES=no
else
TARGET_NO_MODULES=yes
fi
AC_SUBST(TARGET_NO_MODULES)
if test "$TARGET_NO_MODULES" = yes ; then
# Do not convert modules, otherwise linkage may fail (Cygwin only).
# FIXME: Should be checked above before TARGET_OBJ2ELF is set first.
TARGET_OBJ2ELF=
fi
if test x"$enable_grub_emu_usb" = xno ; then
grub_emu_usb_excuse="explicitly disabled"
fi
@ -851,11 +834,6 @@ echo PCI support for grub-emu: Yes
else
echo PCI support for grub-emu: No "($grub_emu_pci_excuse)"
fi
if [ x"$TARGET_NO_MODULES" = xno ]; then
echo Module support for grub-emu: Yes
else
echo Module support for grub-emu: No
fi
fi
if [ x"$enable_mm_debug" = xyes ]; then
echo With memory debugging: Yes

9
genmk.rb
View file

@ -143,13 +143,6 @@ mostlyclean-module-#{@name}.#{@rule_count}:
MOSTLYCLEAN_MODULE_TARGETS += mostlyclean-module-#{@name}.#{@rule_count}
UNDSYMFILES += #{undsym}
ifeq ($(TARGET_NO_MODULES), yes)
#{@name}: #{pre_obj} $(TARGET_OBJ2ELF)
-rm -f $@
$(TARGET_CC) $(#{prefix}_LDFLAGS) $(TARGET_LDFLAGS) -Wl,-r,-d -o $@ #{pre_obj}
if test ! -z \"$(TARGET_OBJ2ELF)\"; then ./$(TARGET_OBJ2ELF) $@ || (rm -f $@; exit 1); fi
if test x$(TARGET_NO_STRIP) != xyes ; then $(STRIP) --strip-unneeded -K grub_mod_init -K grub_mod_fini -K _grub_mod_init -K _grub_mod_fini -R .note -R .comment $@; fi
else
ifneq ($(TARGET_APPLE_CC),1)
#{@name}: #{pre_obj} #{mod_obj} $(TARGET_OBJ2ELF)
-rm -f $@
@ -164,11 +157,11 @@ else
$(OBJCONV) -f$(TARGET_MODULE_FORMAT) -nr:_grub_mod_init:grub_mod_init -nr:_grub_mod_fini:grub_mod_fini -wd1106 -ew2030 -ew2050 -nu -nd $@.bin $@
-rm -f $@.bin
endif
endif
#{pre_obj}: $(#{prefix}_DEPENDENCIES) #{objs_str}
-rm -f $@
$(TARGET_CC) $(#{prefix}_LDFLAGS) $(TARGET_LDFLAGS) -Wl,-r,-d -o $@ #{objs_str}
PREMODFILES += #{pre_obj}
#{mod_obj}: #{mod_src}
$(TARGET_CC) $(TARGET_CPPFLAGS) $(TARGET_CFLAGS) $(#{prefix}_CFLAGS) -DGRUB_FILE=\\\"#{mod_src}\\\" -c -o $@ $<

7
include/grub/dl.h
View file

@ -92,11 +92,6 @@ grub_dl_t grub_dl_load_core (void *addr, grub_size_t size);
int EXPORT_FUNC(grub_dl_unload) (grub_dl_t mod);
void grub_dl_unload_unneeded (void);
void grub_dl_unload_all (void);
#if defined (GRUB_UTIL) || defined (GRUB_TARGET_NO_MODULES)
#define GRUB_NO_MODULES 1
#else
#define GRUB_NO_MODULES 0
#endif
int EXPORT_FUNC(grub_dl_ref) (grub_dl_t mod);
int EXPORT_FUNC(grub_dl_unref) (grub_dl_t mod);
extern grub_dl_t EXPORT_VAR(grub_dl_head);
@ -110,7 +105,7 @@ grub_err_t grub_dl_register_symbol (const char *name, void *addr,
grub_err_t grub_arch_dl_check_header (void *ehdr);
grub_err_t grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr);
#if defined (_mips) && ! GRUB_NO_MODULES
#if defined (_mips)
#define GRUB_LINKER_HAVE_INIT 1
void grub_arch_dl_init_linker (void);
#endif

1
include/grub/emu/misc.h
View file

@ -42,6 +42,7 @@
extern int verbosity;
extern const char *program_name;
void grub_emu_init (void);
void grub_init_all (void);
void grub_fini_all (void);

7
include/grub/misc.h
View file

@ -324,4 +324,11 @@ void EXPORT_FUNC (grub_halt) (int no_apm) __attribute__ ((noreturn));
void EXPORT_FUNC (grub_halt) (void) __attribute__ ((noreturn));
#endif
#ifdef GRUB_MACHINE_EMU
/* Flag to control module autoloading in normal mode. */
extern int EXPORT_VAR(grub_no_autoload);
#else
#define grub_no_autoload 0
#endif
#endif /* ! GRUB_MISC_HEADER */

15
kern/emu/cache.S Normal file
View file

@ -0,0 +1,15 @@
#ifndef GRUB_MACHINE_EMU
#error "This source is only meant for grub-emu platform"
#endif
#if defined(__i386__) || defined(__x86_64__)
/* Nothing is necessary. */
#elif defined(__sparc__)
#include "../sparc64/cache.S"
#elif defined(__mips__)
#include "../mips/cache.S"
#elif defined(__powerpc__)
#include "../powerpc/cache.S"
#else
#error "No target cpu type is defined"
#endif

50
kern/emu/full.c Normal file
View file

@ -0,0 +1,50 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2010 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <grub/dl.h>
#include <grub/env.h>
#include <grub/kernel.h>
#include <grub/misc.h>
#include <grub/emu/misc.h>
void
grub_register_exported_symbols (void)
{
}
grub_err_t
grub_arch_dl_check_header (void *ehdr)
{
(void) ehdr;
return GRUB_ERR_BAD_MODULE;
}
grub_err_t
grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr)
{
(void) mod;
(void) ehdr;
return GRUB_ERR_BAD_MODULE;
}
void
grub_emu_init (void)
{
grub_no_autoload = 1;
}

40
kern/emu/lite.c Normal file
View file

@ -0,0 +1,40 @@
#include <config.h>
#include <grub/emu/misc.h>
#ifndef GRUB_MACHINE_EMU
#error "This source is only meant for grub-emu platform"
#endif
#if defined(__i386__)
#include "../i386/dl.c"
#elif defined(__x86_64__)
#include "../x86_64/dl.c"
#elif defined(__sparc__)
#include "../sparc64/dl.c"
#elif defined(__mips__)
#include "../mips/dl.c"
#elif defined(__powerpc__)
#include "../powerpc/dl.c"
#else
#error "No target cpu type is defined"
#endif
/* grub-emu-lite supports dynamic module loading, so it won't have any
embedded modules. */
void
grub_init_all (void)
{
return;
}
void
grub_fini_all (void)
{
return;
}
void
grub_emu_init (void)
{
return;
}

38
kern/emu/main.c
View file

@ -51,31 +51,14 @@ static jmp_buf main_env;
/* Store the prefix specified by an argument. */
static char *prefix = NULL;
int grub_no_autoload;
grub_addr_t
grub_arch_modules_addr (void)
{
return 0;
}
#if GRUB_NO_MODULES
grub_err_t
grub_arch_dl_check_header (void *ehdr)
{
(void) ehdr;
return GRUB_ERR_BAD_MODULE;
}
grub_err_t
grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr)
{
(void) mod;
(void) ehdr;
return GRUB_ERR_BAD_MODULE;
}
#endif
void
grub_reboot (void)
{
@ -154,10 +137,7 @@ void grub_hostfs_init (void);
void grub_hostfs_fini (void);
void grub_host_init (void);
void grub_host_fini (void);
#if GRUB_NO_MODULES
void grub_init_all (void);
void grub_fini_all (void);
#endif
void grub_emu_init (void);
int
main (int argc, char *argv[])
@ -216,6 +196,7 @@ main (int argc, char *argv[])
}
signal (SIGINT, SIG_IGN);
grub_emu_init ();
grub_console_init ();
grub_host_init ();
grub_hostfs_init ();
@ -223,9 +204,7 @@ main (int argc, char *argv[])
/* XXX: This is a bit unportable. */
grub_util_biosdisk_init (dev_map);
#if GRUB_NO_MODULES
grub_init_all ();
#endif
/* Make sure that there is a root device. */
if (! root_dev)
@ -255,9 +234,7 @@ main (int argc, char *argv[])
if (setjmp (main_env) == 0)
grub_main ();
#if GRUB_NO_MODULES
grub_fini_all ();
#endif
grub_hostfs_fini ();
grub_host_fini ();
@ -287,10 +264,3 @@ grub_millisleep (grub_uint32_t ms)
}
#endif
#if GRUB_NO_MODULES
void
grub_register_exported_symbols (void)
{
}
#endif

11
normal/main.c
View file

@ -445,10 +445,13 @@ grub_normal_init_page (struct grub_term_output *term)
static void
read_lists (const char *val)
{
read_command_list (val);
read_fs_list (val);
read_crypto_list (val);
read_terminal_list (val);
if (! grub_no_autoload)
{
read_command_list (val);
read_fs_list (val);
read_crypto_list (val);
read_terminal_list (val);
}
}
static char *

10
util/misc.c
View file

@ -185,12 +185,10 @@ grub_mm_init_region (void *addr __attribute__ ((unused)),
{
}
#if GRUB_NO_MODULES
void
grub_register_exported_symbols (void)
{
}
#endif
#ifdef __MINGW32__
@ -214,14 +212,6 @@ grub_millisleep (grub_uint32_t ms)
#endif
#if !(defined (__i386__) || defined (__x86_64__)) && GRUB_NO_MODULES
void
grub_arch_sync_caches (void *address __attribute__ ((unused)),
grub_size_t len __attribute__ ((unused)))
{
}
#endif
#ifdef __MINGW32__
void sync (void)