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Build system support for grub-emu modules

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-02-07 15:17:26 +01:00
parent c3e6233987
commit f38873b80b
9 changed files with 114 additions and 33 deletions
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8
Makefile.in
View file

@ -43,6 +43,7 @@ pkglibdir = $(libdir)/`echo @PACKAGE_TARNAME@/$(target_cpu)-$(platform) | sed '
# Internationalization library.
LIBINTL = @LIBINTL@
TARGET_NO_MODULES = @TARGET_NO_MODULES@
XGETTEXT = @XGETTEXT@
MSGMERGE = @MSGMERGE@
@ -175,10 +176,15 @@ 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) $(pkgdata_DATA) po/*.mo
ifneq ($(platform), emu)
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

46
conf/any-emu.rmk
View file

@ -13,30 +13,33 @@ pkglib_PROGRAMS = kernel.img
kernel_img_SOURCES = kern/device.c kern/disk.c kern/dl.c kern/env.c \
kern/err.c kern/list.c kern/handler.c \
kern/command.c kern/corecmd.c kern/file.c \
kern/fs.c commands/boot.c kern/main.c kern/misc.c kern/parser.c \
kern/fs.c kern/main.c kern/misc.c kern/parser.c \
kern/partition.c kern/term.c \
kern/rescue_reader.c kern/rescue_parser.c \
\
util/console.c util/grub-emu.c util/misc.c \
util/hostdisk.c util/getroot.c \
\
grub_emu_init.c
kernel_img_CFLAGS = $(CPPFLAGS) $(CFLAGS)
gnulib/progname.c util/hostfs.c
kernel_img_HEADERS = boot.h cache.h device.h disk.h dl.h elf.h elfload.h \
env.h err.h file.h fs.h kernel.h loader.h misc.h mm.h net.h parser.h \
partition.h msdos_partition.h reader.h symbol.h term.h time.h types.h \
list.h handler.h command.h i18n.h env_private.h
kernel_img_CFLAGS = $(CPPFLAGS) $(CFLAGS) -Wno-undef
kernel_img_LDFLAGS = $(COMMON_LDFLAGS)
TARGET_NO_STRIP = yes
TARGET_NO_DYNAMIC_MODULES = yes
# progname.c always has warnings. Compile it separately.
pkglib_MODULES += progname.mod
progname_mod_SOURCES = gnulib/progname.c
progname_mod_CFLAGS = $(COMMON_CFLAGS) -Wno-error
progname_mod_LDFLAGS = $(COMMON_LDFLAGS)
ifneq ($(TARGET_NO_MODULES), yes)
kernel_img_SOURCES += symlist.c
else
kernel_img_SOURCES += grub_emu_init.c
endif
# For hostfs.mod.
pkglib_MODULES += hostfs.mod
hostfs_mod_SOURCES = util/hostfs.c
hostfs_mod_CFLAGS = $(COMMON_CFLAGS)
hostfs_mod_LDFLAGS = $(COMMON_LDFLAGS)
# For boot.mod.
pkglib_MODULES += boot.mod
boot_mod_SOURCES = commands/boot.c lib/i386/pc/biosnum.c
boot_mod_CFLAGS = $(COMMON_CFLAGS)
boot_mod_LDFLAGS = $(COMMON_LDFLAGS)
# For host.mod.
pkglib_MODULES += host.mod
@ -77,8 +80,10 @@ endif
ifeq ($(enable_grub_emu_sdl), yes)
pkglib_MODULES += sdl.mod
sdl_mod_SOURCES = util/sdl.c
sdl_mod_CFLAGS = $(COMMON_CFLAGS)
sdl_mod_LDFLAGS = $(COMMON_LDFLAGS)
grub_emu_LDFLAGS += $(LIBSDL)
kernel_img_HEADERS += sdl.h
endif
ifeq ($(enable_grub_emu_pci), yes)
@ -90,6 +95,14 @@ endif
include $(srcdir)/conf/common.mk
MOSTLYCLEANFILES += symlist.c kernel_syms.lst
DEFSYMFILES += kernel_syms.lst
symlist.c: $(addprefix include/grub/,$(kernel_img_HEADERS)) config.h gensymlist.sh
/bin/sh gensymlist.sh $(filter %.h,$^) > $@ || (rm -f $@; exit 1)
kernel_syms.lst: $(addprefix include/grub/,$(kernel_img_HEADERS)) config.h genkernsyms.sh
/bin/sh genkernsyms.sh $(filter %.h,$^) > $@ || (rm -f $@; exit 1)
grub_emu_init.h: genemuinitheader.sh $(pkglib_MODULES)
rm -f $@; echo $(pkglib_MODULES) | sh $(srcdir)/genemuinitheader.sh $(NM) > $@
DISTCLEANFILES += grub_emu_init.h
@ -99,7 +112,12 @@ grub_emu_init.c: genemuinit.sh $(pkglib_MODULES)
DISTCLEANFILES += grub_emu_init.c
CLEANFILES += grub-emu
ifneq ($(TARGET_NO_MODULES), yes)
grub-emu: $(pkglib_PROGRAMS)
$(CC) -o $@ $(pkglib_PROGRAMS) $(grub_emu_LDFLAGS) $(LDFLAGS)
else
grub-emu: $(pkglib_MODULES) $(pkglib_PROGRAMS)
$(CC) -o $@ $(pkglib_MODULES) $(pkglib_PROGRAMS) $(grub_emu_LDFLAGS) $(LDFLAGS)
endif
GRUB_EMU=grub-emu

16
configure.ac
View file

@ -548,6 +548,10 @@ 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 "$platform" = emu; then
missing_ncurses=
[# Check for curses libraries.]
@ -566,6 +570,13 @@ if test x"$missing_ncurses" = xtrue ; then
AC_MSG_ERROR([grub-emu can't be compiled without ncurses])
fi
if test x"$enable_grub_emu_modules" = xyes ; then
TARGET_NO_MODULES=no
else
TARGET_NO_MODULES=yes
fi
AC_SUBST(TARGET_NO_MODULES)
if test x"$enable_grub_emu_usb" = xno ; then
grub_emu_usb_excuse="explicitly disabled"
fi
@ -733,6 +744,11 @@ 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

34
genmk.rb
View file

@ -143,7 +143,7 @@ mostlyclean-module-#{@name}.#{@rule_count}:
MOSTLYCLEAN_MODULE_TARGETS += mostlyclean-module-#{@name}.#{@rule_count}
UNDSYMFILES += #{undsym}
ifeq ($(TARGET_NO_DYNAMIC_MODULES), yes)
ifeq ($(TARGET_NO_MODULES), yes)
#{@name}: #{pre_obj} $(TARGET_OBJ2ELF)
-rm -f $@
$(TARGET_CC) $(#{prefix}_LDFLAGS) $(TARGET_LDFLAGS) -Wl,-r,-d -o $@ #{pre_obj}
@ -322,28 +322,32 @@ class Program
end
attr_reader :dir, :name
def print_tail()
prefix = @name.to_var
print "CLEANFILES += #{@name} $(#{prefix}_OBJECTS)
ifeq ($(#{prefix}_RELOCATABLE),yes)
#{@name}: $(#{prefix}_DEPENDENCIES) $(#{prefix}_OBJECTS)
$(TARGET_CC) -Wl,-r,-d -o $@ $(#{prefix}_OBJECTS) $(TARGET_LDFLAGS) $(#{prefix}_LDFLAGS)
if test x$(TARGET_NO_STRIP) != xyes ; then $(STRIP) --strip-unneeded -K start -R .note -R .comment $@; fi
else
#{@name}: $(#{prefix}_DEPENDENCIES) $(#{prefix}_OBJECTS)
$(TARGET_CC) -o $@ $(#{prefix}_OBJECTS) $(TARGET_LDFLAGS) $(#{prefix}_LDFLAGS)
if test x$(TARGET_NO_STRIP) != xyes ; then $(STRIP) -R .rel.dyn -R .reginfo -R .note -R .comment $@; fi
endif
"
end
def rule(sources)
prefix = @name.to_var
objs = sources.collect do |src|
raise "unknown source file `#{src}'" if /\.[cS]$/ !~ src
prefix + '-' + src.to_obj
end
objs_str = objs.join(' ');
deps = objs.collect {|obj| obj.suffix('d')}
deps_str = deps.join(' ');
"CLEANFILES += #{@name} #{objs_str}
MOSTLYCLEANFILES += #{deps_str}
ifeq ($(#{prefix}_RELOCATABLE),yes)
#{@name}: $(#{prefix}_DEPENDENCIES) #{objs_str}
$(TARGET_CC) -Wl,-r,-d -o $@ #{objs_str} $(TARGET_LDFLAGS) $(#{prefix}_LDFLAGS)
if test x$(TARGET_NO_STRIP) != xyes ; then $(STRIP) --strip-unneeded -K start -R .note -R .comment $@; fi
else
#{@name}: $(#{prefix}_DEPENDENCIES) #{objs_str}
$(TARGET_CC) -o $@ #{objs_str} $(TARGET_LDFLAGS) $(#{prefix}_LDFLAGS)
if test x$(TARGET_NO_STRIP) != xyes ; then $(STRIP) -R .rel.dyn -R .reginfo -R .note -R .comment $@; fi
endif
"MOSTLYCLEANFILES += #{deps_str}
" + objs.collect_with_index do |obj, i|
src = sources[i]
@ -358,6 +362,7 @@ endif
-include #{dep}
#{prefix}_OBJECTS += #{obj}
"
end.join('')
end
@ -466,4 +471,5 @@ while l = gets
end
utils.each {|util| util.print_tail()}
programs.each {|program| program.print_tail()}

4
genmoddep.awk
View file

@ -32,13 +32,13 @@ FNR == 1 {
else if ($1 != "__gnu_local_gp") {
printf "%s in %s is not defined\n", $1, module >"/dev/stderr";
error++;
exit;
# exit;
}
}
# Output the result.
END {
if (error == 1)
if (error != 0)
exit 1;
for (mod in modtab) {

4
include/grub/dl.h
View file

@ -91,7 +91,7 @@ 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_MACHINE_EMU) || defined (GRUB_UTIL)
#if defined (GRUB_UTIL) || defined (GRUB_TARGET_NO_MODULES)
#define GRUB_NO_MODULES 1
#else
#define GRUB_NO_MODULES 0
@ -121,7 +121,7 @@ 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) && ! defined (GRUB_UTIL) && !defined (GRUB_MACHINE_EMU)
#if defined (_mips) && ! GRUB_NO_MODULES
#define GRUB_LINKER_HAVE_INIT 1
void grub_arch_dl_init_linker (void);
#endif

24
include/grub/sdl.h Normal file
View file

@ -0,0 +1,24 @@
/*
* 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/>.
*/
void EXPORT_FUNC (SDL_Quit) (void);
void EXPORT_FUNC (SDL_SetColors) (void);
void EXPORT_FUNC (SDL_Init) (void);
void EXPORT_FUNC (SDL_GetError) (void);
void EXPORT_FUNC (SDL_Flip) (void);
void EXPORT_FUNC (SDL_SetVideoMode) (void);

9
util/grub-emu.c
View file

@ -146,6 +146,9 @@ usage (int status)
}
void grub_hostfs_init (void);
void grub_hostfs_fini (void);
int
main (int argc, char *argv[])
{
@ -204,11 +207,14 @@ main (int argc, char *argv[])
signal (SIGINT, SIG_IGN);
grub_console_init ();
grub_hostfs_init ();
/* 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)
@ -235,7 +241,10 @@ main (int argc, char *argv[])
if (setjmp (main_env) == 0)
grub_main ();
#if GRUB_NO_MODULES
grub_fini_all ();
#endif
grub_hostfs_fini ();
grub_machine_fini ();

2
util/misc.c
View file

@ -319,10 +319,12 @@ grub_mm_init_region (void *addr __attribute__ ((unused)),
{
}
#if GRUB_NO_MODULES
void
grub_register_exported_symbols (void)
{
}
#endif
void
grub_exit (void)