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2003-01-20 Yoshinori K. Okuji <okuji@enbug.org> 

* include/pupa/normal.h: New file.
	* include/pupa/setjmp.h: Likewise.
	* include/pupa/i386/setjmp.h: Likewise.
	* normal/cmdline.c: Likewise.
	* normal/command.c: Likewise.
	* normal/main.c: Likewise.
	* normal/menu.c: Likewise.
	* normal/i386/setjmp.S: Likewise.

	* loader/i386/pc/linux.c (pupa_rescue_cmd_linux): Made global.
	(pupa_rescue_cmd_initrd): Likewise.

	* loader/i386/pc/chainloader.c (pupa_rescue_cmd_chainloader):
	Likewise.

	* kern/i386/pc/startup.S (translation_table): New variable.
	(translate_keycode): New function.
	(pupa_console_getkey): Call translate_keycode.

	* kern/rescue.c (attempt_normal_mode): New function.
	(pupa_enter_rescue_mode): Attempt to execute the normal mode. If
	it failed, print a message.

	* kern/mm.c (pupa_real_malloc): Print more information when a
	free magic is broken.
	(pupa_free): If the first free header is not free actually, set
	it to P.

	* kern/main.c (pupa_load_normal_mode): Just load the module
	"normal".
	(pupa_main): Don't print the message
	"Entering into rescue mode..." here.

	* include/pupa/i386/pc/loader.h (pupa_rescue_cmd_initrd):
	Declared.
	(pupa_rescue_cmd_initrd): Likewise.
	(pupa_rescue_cmd_initrd): Likewise.

	* include/pupa/symbol.h (FUNCTION): Specify the type.
	(VARIABLE): Likewise.

	* include/pupa/err.h (pupa_err_t): Added
	PUPA_ERR_UNKNOWN_COMMAND.

	* include/pupa/dl.h (pupa_dl_set_prefix): Exported.
	(pupa_dl_get_prefix): Likewise.

	* conf/i386-pc.rmk (pkgdata_MODULES): Added normal.mod.
	Added _chain.mod and _linux.mod instead of chain.mod and
	linux.mod.
	(chain_mod_SOURCES): Renamed to ...
	(_chain_mod_SOURCES): ... this.
	(chain_mod_CFLAGS): Renamed to ...
	(_chain_mod_CFLAGS): ... this.
	(linux_mod_SOURCES): Renamed to ...
	(_linux_mod_SOURCES): ... this.
	(linux_mod_CFLAGS): Renamed to ...
	(_linux_mod_CFLAGS): ... this.
	(normal_mod_SOURCES): New variable.
	(normal_mod_CFLAGS): Likewise.
	(normal_mod_ASFLAGS): Likewise.

2003-01-18  Yoshinori K. Okuji  <okuji@enbug.org>

	* kern/rescue.c (pupa_rescue_cmd_rmmod): Call pupa_dl_unload, if
	possible.

	* kern/dl.c (pupa_dl_ref): Refer dependending modules
	recursively.
	(pupa_dl_unref): Unrefer depending modules recursively.
	Don't call pupa_dl_unload implicitly, because PUPA can crash if
	a module is unloaded before one depending on that module is
	unloaded.
	(pupa_dl_unload): Unload depending modules explicitly,
	if possible.
This commit is contained in:
okuji 2003-01-20 04:13:46 +00:00
parent 82cefbd307
commit ce5bf700ca
22 changed files with 1664 additions and 103 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

78
ChangeLog
View File

@ -1,3 +1,81 @@
2003-01-20 Yoshinori K. Okuji <okuji@enbug.org>
* include/pupa/normal.h: New file.
* include/pupa/setjmp.h: Likewise.
* include/pupa/i386/setjmp.h: Likewise.
* normal/cmdline.c: Likewise.
* normal/command.c: Likewise.
* normal/main.c: Likewise.
* normal/menu.c: Likewise.
* normal/i386/setjmp.S: Likewise.
* loader/i386/pc/linux.c (pupa_rescue_cmd_linux): Made global.
(pupa_rescue_cmd_initrd): Likewise.
* loader/i386/pc/chainloader.c (pupa_rescue_cmd_chainloader):
Likewise.
* kern/i386/pc/startup.S (translation_table): New variable.
(translate_keycode): New function.
(pupa_console_getkey): Call translate_keycode.
* kern/rescue.c (attempt_normal_mode): New function.
(pupa_enter_rescue_mode): Attempt to execute the normal mode. If
it failed, print a message.
* kern/mm.c (pupa_real_malloc): Print more information when a
free magic is broken.
(pupa_free): If the first free header is not free actually, set
it to P.
* kern/main.c (pupa_load_normal_mode): Just load the module
"normal".
(pupa_main): Don't print the message
"Entering into rescue mode..." here.
* include/pupa/i386/pc/loader.h (pupa_rescue_cmd_initrd):
Declared.
(pupa_rescue_cmd_initrd): Likewise.
(pupa_rescue_cmd_initrd): Likewise.
* include/pupa/symbol.h (FUNCTION): Specify the type.
(VARIABLE): Likewise.
* include/pupa/err.h (pupa_err_t): Added
PUPA_ERR_UNKNOWN_COMMAND.
* include/pupa/dl.h (pupa_dl_set_prefix): Exported.
(pupa_dl_get_prefix): Likewise.
* conf/i386-pc.rmk (pkgdata_MODULES): Added normal.mod.
Added _chain.mod and _linux.mod instead of chain.mod and
linux.mod.
(chain_mod_SOURCES): Renamed to ...
(_chain_mod_SOURCES): ... this.
(chain_mod_CFLAGS): Renamed to ...
(_chain_mod_CFLAGS): ... this.
(linux_mod_SOURCES): Renamed to ...
(_linux_mod_SOURCES): ... this.
(linux_mod_CFLAGS): Renamed to ...
(_linux_mod_CFLAGS): ... this.
(normal_mod_SOURCES): New variable.
(normal_mod_CFLAGS): Likewise.
(normal_mod_ASFLAGS): Likewise.
2003-01-18 Yoshinori K. Okuji <okuji@enbug.org>
* kern/rescue.c (pupa_rescue_cmd_rmmod): Call pupa_dl_unload, if
possible.
* kern/dl.c (pupa_dl_ref): Refer dependending modules
recursively.
(pupa_dl_unref): Unrefer depending modules recursively.
Don't call pupa_dl_unload implicitly, because PUPA can crash if
a module is unloaded before one depending on that module is
unloaded.
(pupa_dl_unload): Unload depending modules explicitly,
if possible.
2003-01-17 Yoshinori K. Okuji <okuji@enbug.org>
* include/pupa/i386/pc/linux.h: New file.

163
conf/i386-pc.mk
View File

@ -393,46 +393,46 @@ genmoddep-util_genmoddep.d: util/genmoddep.c
# Modules.
pkgdata_MODULES = chain.mod fat.mod linux.mod
pkgdata_MODULES = _chain.mod _linux.mod fat.mod normal.mod
# For chain.mod.
chain_mod_SOURCES = loader/i386/pc/chainloader.c
CLEANFILES += chain.mod mod-chain.o mod-chain.c pre-chain.o chain_mod-loader_i386_pc_chainloader.o def-chain.lst und-chain.lst
MOSTLYCLEANFILES += chain_mod-loader_i386_pc_chainloader.d
DEFSYMFILES += def-chain.lst
UNDSYMFILES += und-chain.lst
# For _chain.mod.
_chain_mod_SOURCES = loader/i386/pc/chainloader.c
CLEANFILES += _chain.mod mod-_chain.o mod-_chain.c pre-_chain.o _chain_mod-loader_i386_pc_chainloader.o def-_chain.lst und-_chain.lst
MOSTLYCLEANFILES += _chain_mod-loader_i386_pc_chainloader.d
DEFSYMFILES += def-_chain.lst
UNDSYMFILES += und-_chain.lst
chain.mod: pre-chain.o mod-chain.o
_chain.mod: pre-_chain.o mod-_chain.o
-rm -f $@
$(LD) -r -o $@ $^
$(STRIP) --strip-unneeded -K pupa_mod_init -K pupa_mod_fini -R .note -R .comment $@
pre-chain.o: chain_mod-loader_i386_pc_chainloader.o
pre-_chain.o: _chain_mod-loader_i386_pc_chainloader.o
-rm -f $@
$(LD) -r -o $@ $^
mod-chain.o: mod-chain.c
$(CC) $(CPPFLAGS) $(CFLAGS) $(chain_mod_CFLAGS) -c -o $@ $<
mod-_chain.o: mod-_chain.c
$(CC) $(CPPFLAGS) $(CFLAGS) $(_chain_mod_CFLAGS) -c -o $@ $<
mod-chain.c: moddep.lst genmodsrc.sh
sh $(srcdir)/genmodsrc.sh 'chain' $< > $@ || (rm -f $@; exit 1)
mod-_chain.c: moddep.lst genmodsrc.sh
sh $(srcdir)/genmodsrc.sh '_chain' $< > $@ || (rm -f $@; exit 1)
def-chain.lst: pre-chain.o
$(NM) -g --defined-only -P -p $< | sed 's/^\([^ ]*\).*/\1 chain/' > $@
def-_chain.lst: pre-_chain.o
$(NM) -g --defined-only -P -p $< | sed 's/^\([^ ]*\).*/\1 _chain/' > $@
und-chain.lst: pre-chain.o
echo 'chain' > $@
und-_chain.lst: pre-_chain.o
echo '_chain' > $@
$(NM) -u -P -p $< >> $@
chain_mod-loader_i386_pc_chainloader.o: loader/i386/pc/chainloader.c
$(CC) -Iloader/i386/pc -I$(srcdir)/loader/i386/pc $(CPPFLAGS) $(CFLAGS) $(chain_mod_CFLAGS) -c -o $@ $<
_chain_mod-loader_i386_pc_chainloader.o: loader/i386/pc/chainloader.c
$(CC) -Iloader/i386/pc -I$(srcdir)/loader/i386/pc $(CPPFLAGS) $(CFLAGS) $(_chain_mod_CFLAGS) -c -o $@ $<
chain_mod-loader_i386_pc_chainloader.d: loader/i386/pc/chainloader.c
set -e; $(CC) -Iloader/i386/pc -I$(srcdir)/loader/i386/pc $(CPPFLAGS) $(CFLAGS) $(chain_mod_CFLAGS) -M $< | sed 's,chainloader\.o[ :]*,chain_mod-loader_i386_pc_chainloader.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
_chain_mod-loader_i386_pc_chainloader.d: loader/i386/pc/chainloader.c
set -e; $(CC) -Iloader/i386/pc -I$(srcdir)/loader/i386/pc $(CPPFLAGS) $(CFLAGS) $(_chain_mod_CFLAGS) -M $< | sed 's,chainloader\.o[ :]*,_chain_mod-loader_i386_pc_chainloader.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
-include chain_mod-loader_i386_pc_chainloader.d
-include _chain_mod-loader_i386_pc_chainloader.d
chain_mod_CFLAGS = $(COMMON_CFLAGS)
_chain_mod_CFLAGS = $(COMMON_CFLAGS)
# For fat.mod.
fat_mod_SOURCES = fs/fat.c
@ -473,44 +473,117 @@ fat_mod-fs_fat.d: fs/fat.c
fat_mod_CFLAGS = $(COMMON_CFLAGS)
# For linux.mod.
linux_mod_SOURCES = loader/i386/pc/linux.c
CLEANFILES += linux.mod mod-linux.o mod-linux.c pre-linux.o linux_mod-loader_i386_pc_linux.o def-linux.lst und-linux.lst
MOSTLYCLEANFILES += linux_mod-loader_i386_pc_linux.d
DEFSYMFILES += def-linux.lst
UNDSYMFILES += und-linux.lst
# For _linux.mod.
_linux_mod_SOURCES = loader/i386/pc/linux.c
CLEANFILES += _linux.mod mod-_linux.o mod-_linux.c pre-_linux.o _linux_mod-loader_i386_pc_linux.o def-_linux.lst und-_linux.lst
MOSTLYCLEANFILES += _linux_mod-loader_i386_pc_linux.d
DEFSYMFILES += def-_linux.lst
UNDSYMFILES += und-_linux.lst
linux.mod: pre-linux.o mod-linux.o
_linux.mod: pre-_linux.o mod-_linux.o
-rm -f $@
$(LD) -r -o $@ $^
$(STRIP) --strip-unneeded -K pupa_mod_init -K pupa_mod_fini -R .note -R .comment $@
pre-linux.o: linux_mod-loader_i386_pc_linux.o
pre-_linux.o: _linux_mod-loader_i386_pc_linux.o
-rm -f $@
$(LD) -r -o $@ $^
mod-linux.o: mod-linux.c
$(CC) $(CPPFLAGS) $(CFLAGS) $(linux_mod_CFLAGS) -c -o $@ $<
mod-_linux.o: mod-_linux.c
$(CC) $(CPPFLAGS) $(CFLAGS) $(_linux_mod_CFLAGS) -c -o $@ $<
mod-linux.c: moddep.lst genmodsrc.sh
sh $(srcdir)/genmodsrc.sh 'linux' $< > $@ || (rm -f $@; exit 1)
mod-_linux.c: moddep.lst genmodsrc.sh
sh $(srcdir)/genmodsrc.sh '_linux' $< > $@ || (rm -f $@; exit 1)
def-linux.lst: pre-linux.o
$(NM) -g --defined-only -P -p $< | sed 's/^\([^ ]*\).*/\1 linux/' > $@
def-_linux.lst: pre-_linux.o
$(NM) -g --defined-only -P -p $< | sed 's/^\([^ ]*\).*/\1 _linux/' > $@
und-linux.lst: pre-linux.o
echo 'linux' > $@
und-_linux.lst: pre-_linux.o
echo '_linux' > $@
$(NM) -u -P -p $< >> $@
linux_mod-loader_i386_pc_linux.o: loader/i386/pc/linux.c
$(CC) -Iloader/i386/pc -I$(srcdir)/loader/i386/pc $(CPPFLAGS) $(CFLAGS) $(linux_mod_CFLAGS) -c -o $@ $<
_linux_mod-loader_i386_pc_linux.o: loader/i386/pc/linux.c
$(CC) -Iloader/i386/pc -I$(srcdir)/loader/i386/pc $(CPPFLAGS) $(CFLAGS) $(_linux_mod_CFLAGS) -c -o $@ $<
linux_mod-loader_i386_pc_linux.d: loader/i386/pc/linux.c
set -e; $(CC) -Iloader/i386/pc -I$(srcdir)/loader/i386/pc $(CPPFLAGS) $(CFLAGS) $(linux_mod_CFLAGS) -M $< | sed 's,linux\.o[ :]*,linux_mod-loader_i386_pc_linux.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
_linux_mod-loader_i386_pc_linux.d: loader/i386/pc/linux.c
set -e; $(CC) -Iloader/i386/pc -I$(srcdir)/loader/i386/pc $(CPPFLAGS) $(CFLAGS) $(_linux_mod_CFLAGS) -M $< | sed 's,linux\.o[ :]*,_linux_mod-loader_i386_pc_linux.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
-include linux_mod-loader_i386_pc_linux.d
-include _linux_mod-loader_i386_pc_linux.d
linux_mod_CFLAGS = $(COMMON_CFLAGS)
_linux_mod_CFLAGS = $(COMMON_CFLAGS)
# For normal.mod.
normal_mod_SOURCES = normal/cmdline.c normal/command.c normal/main.c \
normal/menu.c normal/i386/setjmp.S
CLEANFILES += normal.mod mod-normal.o mod-normal.c pre-normal.o normal_mod-normal_cmdline.o normal_mod-normal_command.o normal_mod-normal_main.o normal_mod-normal_menu.o normal_mod-normal_i386_setjmp.o def-normal.lst und-normal.lst
MOSTLYCLEANFILES += normal_mod-normal_cmdline.d normal_mod-normal_command.d normal_mod-normal_main.d normal_mod-normal_menu.d normal_mod-normal_i386_setjmp.d
DEFSYMFILES += def-normal.lst
UNDSYMFILES += und-normal.lst
normal.mod: pre-normal.o mod-normal.o
-rm -f $@
$(LD) -r -o $@ $^
$(STRIP) --strip-unneeded -K pupa_mod_init -K pupa_mod_fini -R .note -R .comment $@
pre-normal.o: normal_mod-normal_cmdline.o normal_mod-normal_command.o normal_mod-normal_main.o normal_mod-normal_menu.o normal_mod-normal_i386_setjmp.o
-rm -f $@
$(LD) -r -o $@ $^
mod-normal.o: mod-normal.c
$(CC) $(CPPFLAGS) $(CFLAGS) $(normal_mod_CFLAGS) -c -o $@ $<
mod-normal.c: moddep.lst genmodsrc.sh
sh $(srcdir)/genmodsrc.sh 'normal' $< > $@ || (rm -f $@; exit 1)
def-normal.lst: pre-normal.o
$(NM) -g --defined-only -P -p $< | sed 's/^\([^ ]*\).*/\1 normal/' > $@
und-normal.lst: pre-normal.o
echo 'normal' > $@
$(NM) -u -P -p $< >> $@
normal_mod-normal_cmdline.o: normal/cmdline.c
$(CC) -Inormal -I$(srcdir)/normal $(CPPFLAGS) $(CFLAGS) $(normal_mod_CFLAGS) -c -o $@ $<
normal_mod-normal_cmdline.d: normal/cmdline.c
set -e; $(CC) -Inormal -I$(srcdir)/normal $(CPPFLAGS) $(CFLAGS) $(normal_mod_CFLAGS) -M $< | sed 's,cmdline\.o[ :]*,normal_mod-normal_cmdline.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
-include normal_mod-normal_cmdline.d
normal_mod-normal_command.o: normal/command.c
$(CC) -Inormal -I$(srcdir)/normal $(CPPFLAGS) $(CFLAGS) $(normal_mod_CFLAGS) -c -o $@ $<
normal_mod-normal_command.d: normal/command.c
set -e; $(CC) -Inormal -I$(srcdir)/normal $(CPPFLAGS) $(CFLAGS) $(normal_mod_CFLAGS) -M $< | sed 's,command\.o[ :]*,normal_mod-normal_command.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
-include normal_mod-normal_command.d
normal_mod-normal_main.o: normal/main.c
$(CC) -Inormal -I$(srcdir)/normal $(CPPFLAGS) $(CFLAGS) $(normal_mod_CFLAGS) -c -o $@ $<
normal_mod-normal_main.d: normal/main.c
set -e; $(CC) -Inormal -I$(srcdir)/normal $(CPPFLAGS) $(CFLAGS) $(normal_mod_CFLAGS) -M $< | sed 's,main\.o[ :]*,normal_mod-normal_main.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
-include normal_mod-normal_main.d
normal_mod-normal_menu.o: normal/menu.c
$(CC) -Inormal -I$(srcdir)/normal $(CPPFLAGS) $(CFLAGS) $(normal_mod_CFLAGS) -c -o $@ $<
normal_mod-normal_menu.d: normal/menu.c
set -e; $(CC) -Inormal -I$(srcdir)/normal $(CPPFLAGS) $(CFLAGS) $(normal_mod_CFLAGS) -M $< | sed 's,menu\.o[ :]*,normal_mod-normal_menu.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
-include normal_mod-normal_menu.d
normal_mod-normal_i386_setjmp.o: normal/i386/setjmp.S
$(CC) -Inormal/i386 -I$(srcdir)/normal/i386 $(CPPFLAGS) $(ASFLAGS) $(normal_mod_ASFLAGS) -c -o $@ $<
normal_mod-normal_i386_setjmp.d: normal/i386/setjmp.S
set -e; $(CC) -Inormal/i386 -I$(srcdir)/normal/i386 $(CPPFLAGS) $(ASFLAGS) $(normal_mod_ASFLAGS) -M $< | sed 's,setjmp\.o[ :]*,normal_mod-normal_i386_setjmp.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
-include normal_mod-normal_i386_setjmp.d
normal_mod_CFLAGS = $(COMMON_CFLAGS)
normal_mod_ASFLAGS = $(COMMON_ASFLAGS)
CLEANFILES += moddep.lst
pkgdata_DATA += moddep.lst
moddep.lst: $(DEFSYMFILES) $(UNDSYMFILES) genmoddep

20
conf/i386-pc.rmk
View File

@ -60,16 +60,22 @@ pupa_setup_SOURCES = util/i386/pc/pupa-setup.c util/i386/pc/biosdisk.c \
genmoddep_SOURCES = util/genmoddep.c
# Modules.
pkgdata_MODULES = chain.mod fat.mod linux.mod
pkgdata_MODULES = _chain.mod _linux.mod fat.mod normal.mod
# For chain.mod.
chain_mod_SOURCES = loader/i386/pc/chainloader.c
chain_mod_CFLAGS = $(COMMON_CFLAGS)
# For _chain.mod.
_chain_mod_SOURCES = loader/i386/pc/chainloader.c
_chain_mod_CFLAGS = $(COMMON_CFLAGS)
# For fat.mod.
fat_mod_SOURCES = fs/fat.c
fat_mod_CFLAGS = $(COMMON_CFLAGS)
# For linux.mod.
linux_mod_SOURCES = loader/i386/pc/linux.c
linux_mod_CFLAGS = $(COMMON_CFLAGS)
# For _linux.mod.
_linux_mod_SOURCES = loader/i386/pc/linux.c
_linux_mod_CFLAGS = $(COMMON_CFLAGS)
# For normal.mod.
normal_mod_SOURCES = normal/cmdline.c normal/command.c normal/main.c \
normal/menu.c normal/i386/setjmp.S
normal_mod_CFLAGS = $(COMMON_CFLAGS)
normal_mod_ASFLAGS = $(COMMON_ASFLAGS)

4
include/grub/dl.h
View File

@ -83,8 +83,8 @@ pupa_dl_t EXPORT_FUNC(pupa_dl_get) (const char *name);
pupa_err_t EXPORT_FUNC(pupa_dl_register_symbol) (const char *name, void *addr,
pupa_dl_t mod);
void *EXPORT_FUNC(pupa_dl_resolve_symbol) (const char *name);
void pupa_dl_set_prefix (const char *dir);
const char *pupa_dl_get_prefix (void);
void EXPORT_FUNC(pupa_dl_set_prefix) (const char *dir);
const char *EXPORT_FUNC(pupa_dl_get_prefix) (void);
int pupa_arch_dl_check_header (void *ehdr, pupa_size_t size);
pupa_err_t pupa_arch_dl_relocate_symbols (pupa_dl_t mod, void *ehdr);

1
include/grub/err.h
View File

@ -40,6 +40,7 @@ typedef enum
PUPA_ERR_BAD_DEVICE,
PUPA_ERR_READ_ERROR,
PUPA_ERR_WRITE_ERROR,
PUPA_ERR_UNKNOWN_COMMAND,
PUPA_ERR_BAD_ARGUMENT,
PUPA_ERR_BAD_PART_TABLE,
PUPA_ERR_UNKNOWN_OS,

6
include/grub/i386/pc/loader.h
View File

@ -33,4 +33,10 @@ void EXPORT_FUNC(pupa_linux_boot_bzimage) (void) __attribute__ ((noreturn));
/* This is an asm part of the chainloader. */
void EXPORT_FUNC(pupa_chainloader_real_boot) (int drive, void *part_addr) __attribute__ ((noreturn));
/* It is necessary to export these functions, because normal mode commands
reuse rescue mode commands. */
void pupa_rescue_cmd_chainloader (int argc, char *argv[]);
void pupa_rescue_cmd_linux (int argc, char *argv[]);
void pupa_rescue_cmd_initrd (int argc, char *argv[]);
#endif /* ! PUPA_LOADER_MACHINE_HEADER */

25
include/grub/i386/setjmp.h Normal file
View File

@ -0,0 +1,25 @@
/*
* PUPA -- Preliminary Universal Programming Architecture for GRUB
* Copyright (C) 2003 Yoshinori K. Okuji <okuji@enbug.org>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef PUPA_SETJMP_CPU_HEADER
#define PUPA_SETJMP_CPU_HEADER 1
typedef unsigned long pupa_jmp_buf[6];
#endif /* ! PUPA_SETJMP_CPU_HEADER */

131
include/grub/normal.h Normal file
View File

@ -0,0 +1,131 @@
/* normal.h - prototypes for the normal mode */
/*
* PUPA -- Preliminary Universal Programming Architecture for GRUB
* Copyright (C) 2002,2003 Yoshinori K. Okuji <okuji@enbug.org>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef PUPA_NORMAL_HEADER
#define PUPA_NORMAL_HEADER 1
#include <pupa/setjmp.h>
/* The maximum size of a command-line. */
#define PUPA_MAX_CMDLINE 1600
/* Can be run in the command-line. */
#define PUPA_COMMAND_FLAG_CMDLINE 0x1
/* Can be run in the menu. */
#define PUPA_COMMAND_FLAG_MENU 0x2
/* Can be run in both interfaces. */
#define PUPA_COMMAND_FLAG_BOTH 0x3
/* Only for the command title. */
#define PUPA_COMMAND_FLAG_TITLE 0x4
/* Don't print the command on booting. */
#define PUPA_COMMAND_FLAG_NO_ECHO 0x8
/* The command description. */
struct pupa_command
{
/* The name. */
const char *name;
/* The callback function. */
int (*func) (int argc, char *argv[]);
/* The flags. */
unsigned flags;
/* The summary of the command usage. */
const char *summary;
/* The description of the command. */
const char *description;
/* The next element. */
struct pupa_command *next;
};
typedef struct pupa_command *pupa_command_t;
/* The command list. */
struct pupa_command_list
{
/* The string of a command. */
const char *command;
/* The next element. */
struct pupa_command_list *next;
};
typedef struct pupa_command_list *pupa_command_list_t;
/* The menu entry. */
struct pupa_menu_entry
{
/* The title name. */
const char *title;
/* The number of commands. */
int num;
/* The list of commands. */
pupa_command_list_t command_list;
/* The next element. */
struct pupa_menu_entry *next;
};
typedef struct pupa_menu_entry *pupa_menu_entry_t;
/* The menu. */
struct pupa_menu
{
/* The default entry number. */
int default_entry;
/* The fallback entry number. */
int fallback_entry;
/* The timeout to boot the default entry automatically. */
int timeout;
/* The size of a menu. */
int size;
/* The list of menu entries. */
pupa_menu_entry_t entry_list;
};
typedef struct pupa_menu *pupa_menu_t;
/* To exit from the normal mode. */
extern pupa_jmp_buf pupa_exit_env;
void pupa_enter_normal_mode (const char *config);
void pupa_normal_execute (const char *config, int nested);
void pupa_menu_run (pupa_menu_t menu, int nested);
void pupa_cmdline_run (int nested);
int pupa_cmdline_get (const char *prompt, char cmdline[], unsigned max_len,
int echo_char, int readline);
void pupa_register_command (const char *name,
int (*func) (int argc, char *argv[]),
unsigned flags,
const char *summary,
const char *description);
void pupa_unregister_command (const char *name);
pupa_command_t pupa_command_find (char *cmdline);
int pupa_command_execute (char *cmdline);
void pupa_command_init (void);
void pupa_normal_init_page (void);
#endif /* ! PUPA_NORMAL_HEADER */

29
include/grub/setjmp.h Normal file
View File

@ -0,0 +1,29 @@
/*
* PUPA -- Preliminary Universal Programming Architecture for GRUB
* Copyright (C) 2003 Yoshinori K. Okuji <okuji@enbug.org>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef PUPA_SETJMP_HEADER
#define PUPA_SETJMP_HEADER 1
/* This must define pupa_jmp_buf. */
#include <pupa/cpu/setjmp.h>
int pupa_setjmp (pupa_jmp_buf env);
void pupa_longjmp (pupa_jmp_buf env, int val) __attribute__ ((noreturn));
#endif /* ! PUPA_SETJMP_HEADER */

4
include/grub/symbol.h
View File

@ -30,8 +30,8 @@
# define EXT_C(sym) sym
#endif
#define FUNCTION(x) .globl EXT_C(x) ; EXT_C(x):
#define VARIABLE(x) FUNCTION(x)
#define FUNCTION(x) .globl EXT_C(x) ; .type EXT_C(x), @function ; EXT_C(x):
#define VARIABLE(x) .globl EXT_C(x) ; .type EXT_C(x), @object ; EXT_C(x):
/* Mark an exported symbol. */
#define EXPORT_FUNC(x) x

21
kern/dl.c
View File

@ -459,19 +459,23 @@ pupa_dl_resolve_dependencies (pupa_dl_t mod, Elf_Ehdr *e)
int
pupa_dl_ref (pupa_dl_t mod)
{
pupa_dl_dep_t dep;
for (dep = mod->dep; dep; dep = dep->next)
pupa_dl_ref (dep->mod);
return ++mod->ref_count;
}
int
pupa_dl_unref (pupa_dl_t mod)
{
int ret;
pupa_dl_dep_t dep;
ret = --mod->ref_count;
if (ret <= 0)
pupa_dl_unload (mod);
return ret;
for (dep = mod->dep; dep; dep = dep->next)
pupa_dl_unref (dep->mod);
return --mod->ref_count;
}
/* Load a module from core memory. */
@ -605,7 +609,10 @@ pupa_dl_unload (pupa_dl_t mod)
for (dep = mod->dep; dep; dep = depn)
{
depn = dep->next;
pupa_dl_unref (dep->mod);
if (! pupa_dl_unref (dep->mod))
pupa_dl_unload (dep->mod);
pupa_free (dep);
}

47
kern/i386/pc/startup.S
View File

@ -1080,6 +1080,50 @@ FUNCTION(pupa_console_putchar)
* %al = ASCII character
*/
/* this table is used in translate_keycode below */
translation_table:
.word PUPA_CONSOLE_KEY_LEFT, 2
.word PUPA_CONSOLE_KEY_RIGHT, 6
.word PUPA_CONSOLE_KEY_UP, 16
.word PUPA_CONSOLE_KEY_DOWN, 14
.word PUPA_CONSOLE_KEY_HOME, 1
.word PUPA_CONSOLE_KEY_END, 5
.word PUPA_CONSOLE_KEY_DC, 4
.word PUPA_CONSOLE_KEY_BACKSPACE, 8
.word PUPA_CONSOLE_KEY_PPAGE, 7
.word PUPA_CONSOLE_KEY_NPAGE, 3
.word 0
/*
* translate_keycode translates the key code %dx to an ascii code.
*/
.code16
translate_keycode:
pushw %bx
pushw %si
movw $ABS(translation_table), %si
1: lodsw
/* check if this is the end */
testw %ax, %ax
jz 2f
/* load the ascii code into %ax */
movw %ax, %bx
lodsw
/* check if this matches the key code */
cmpw %bx, %dx
jne 1b
/* translate %dx, if successful */
movw %ax, %dx
2: popw %si
popw %bx
ret
.code32
FUNCTION(pupa_console_getkey)
pushl %ebp
@ -1089,7 +1133,8 @@ FUNCTION(pupa_console_getkey)
int $0x16
movw %ax, %dx /* real_to_prot uses %eax */
call translate_keycode
DATA32 call real_to_prot
.code32

35
kern/main.c
View File

@ -84,34 +84,8 @@ pupa_set_root_dev (void)
static void
pupa_load_normal_mode (void)
{
if (pupa_dl_load ("normal"))
{
void (*normal_func) (const char *config);
/* If the function pupa_enter_normal_mode is present, call it. */
normal_func = pupa_dl_resolve_symbol ("pupa_enter_normal_mode");
if (normal_func)
{
char *config;
char *prefix;
prefix = pupa_dl_get_prefix ();
if (! prefix)
pupa_fatal ("The dl prefix is not set!");
config = pupa_malloc (pupa_strlen (prefix) + sizeof ("/pupa.cfg"));
if (! config)
pupa_fatal ("out of memory");
pupa_sprintf (config, "%s/pupa.cfg", prefix);
(*normal_func) (config);
pupa_free (config);
}
else
pupa_printf ("No entrance routine in the normal mode!\n");
}
else
pupa_printf ("Failed to load the normal mode.\n");
/* Load the module. */
pupa_dl_load ("normal");
/* Ignore any error, because we have the rescue mode anyway. */
pupa_errno = PUPA_ERR_NONE;
@ -138,10 +112,9 @@ pupa_main (void)
pupa_load_modules ();
pupa_add_unused_region ();
/* Go to the real world. */
/* Load the normal mode module. */
pupa_load_normal_mode ();
/* If pupa_enter_normal_mode fails or doesn't exist, enter rescue mode. */
pupa_printf ("Entering into rescue mode...\n");
/* Enter the rescue mode. */
pupa_enter_rescue_mode ();
}

20
kern/mm.c
View File

@ -151,7 +151,7 @@ pupa_real_malloc (pupa_mm_header_t *first, pupa_size_t n, pupa_size_t align)
pupa_fatal ("null in the ring");
if (p->magic != PUPA_MM_FREE_MAGIC)
pupa_fatal ("free magic is broken at %p", p);
pupa_fatal ("free magic is broken at %p: 0x%x", p, p->magic);
if (p->size >= n + extra)
{
@ -184,6 +184,7 @@ pupa_real_malloc (pupa_mm_header_t *first, pupa_size_t n, pupa_size_t align)
}
*first = q;
return p + 1;
}
@ -259,19 +260,30 @@ pupa_free (void *ptr)
get_header_from_pointer (ptr, &p, &r);
if (p == r->first)
if (r->first->magic == PUPA_MM_ALLOC_MAGIC)
{
p->magic = PUPA_MM_FREE_MAGIC;
p->next = p;
r->first = p->next = p;
}
else
{
pupa_mm_header_t q;
#if 0
q = r->first;
do
{
pupa_printf ("%s:%d: q=%p, q->size=0x%x, q->magic=0x%x\n",
__FILE__, __LINE__, q, q->size, q->magic);
q = q->next;
}
while (q != r->first);
#endif
for (q = r->first; q >= p || q->next <= p; q = q->next)
{
if (q->magic != PUPA_MM_FREE_MAGIC)
pupa_fatal ("free magic is broken at %p", q);
pupa_fatal ("free magic is broken at %p: 0x%x", q, q->magic);
if (q >= q->next && (q < p || q->next > p))
break;

23
kern/rescue.c
View File

@ -560,7 +560,8 @@ pupa_rescue_cmd_rmmod (int argc, char *argv[])
return;
}
pupa_dl_unref (mod);
if (! pupa_dl_unref (mod))
pupa_dl_unload (mod);
}
/* lsmod */
@ -590,10 +591,30 @@ pupa_rescue_cmd_lsmod (int argc __attribute__ ((unused)),
pupa_dl_iterate (print_module);
}
static void
attempt_normal_mode (void)
{
pupa_rescue_command_t cmd;
for (cmd = pupa_rescue_command_list; cmd; cmd = cmd->next)
{
if (pupa_strcmp ("normal", cmd->name) == 0)
{
(cmd->func) (0, 0);
break;
}
}
}
/* Enter the rescue mode. */
void
pupa_enter_rescue_mode (void)
{
/* First of all, attempt to execute the normal mode. */
attempt_normal_mode ();
pupa_printf ("Entering into rescue mode...\n");
pupa_rescue_register_command ("boot", pupa_rescue_cmd_boot,
"boot an operating system");
pupa_rescue_register_command ("cat", pupa_rescue_cmd_cat,

2
loader/i386/pc/chainloader.c
View File

@ -81,7 +81,7 @@ pupa_chainloader_unload (void)
return PUPA_ERR_NONE;
}
static void
void
pupa_rescue_cmd_chainloader (int argc, char *argv[])
{
pupa_file_t file = 0;

4
loader/i386/pc/linux.c
View File

@ -59,7 +59,7 @@ pupa_linux_unload (void)
return PUPA_ERR_NONE;
}
static void
void
pupa_rescue_cmd_linux (int argc, char *argv[])
{
pupa_file_t file = 0;
@ -282,7 +282,7 @@ pupa_rescue_cmd_linux (int argc, char *argv[])
}
}
static void
void
pupa_rescue_cmd_initrd (int argc, char *argv[])
{
pupa_error (PUPA_ERR_NOT_IMPLEMENTED_YET, "not implemented yet");

298
normal/cmdline.c Normal file
View File

@ -0,0 +1,298 @@
/*
* PUPA -- Preliminary Universal Programming Architecture for GRUB
* Copyright (C) 1999,2000,2001,2002 Free Software Foundation, Inc.
* Copyright (C) 2003 Yoshinori K. Okuji <okuji@enbug.org>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <pupa/normal.h>
#include <pupa/misc.h>
#include <pupa/term.h>
#include <pupa/err.h>
#include <pupa/types.h>
#include <pupa/mm.h>
static char *kill_buf;
void
pupa_cmdline_run (int nested)
{
pupa_normal_init_page ();
pupa_printf ("\
[ Minimal BASH-like line editing is supported. For the first word, TAB\n\
lists possible command completions. Anywhere else TAB lists possible\n\
device/file completions.%s ]\n\n",
nested ? " ESC at any time exits." : "");
while (1)
{
static char cmdline[PUPA_MAX_CMDLINE];
pupa_command_t cmd;
pupa_print_error ();
pupa_errno = PUPA_ERR_NONE;
cmdline[0] = '\0';
if (! pupa_cmdline_get ("pupa> ", cmdline, sizeof (cmdline), 0, 1)
&& nested)
return;
if (! *cmdline)
continue;
cmd = pupa_command_find (cmdline);
if (! cmd)
continue;
if (! (cmd->flags & PUPA_COMMAND_FLAG_CMDLINE))
{
pupa_error (PUPA_ERR_UNKNOWN_COMMAND,
"invalid command `%s'", cmd->name);
continue;
}
pupa_command_execute (cmdline);
}
}
/* Get a command-line. If ECHO_CHAR is not zero, echo it instead of input
characters. If READLINE is non-zero, readline-like key bindings are
available. If ESC is pushed, return non-zero, otherwise return zero. */
/* FIXME: The dumb interface is not supported yet. */
int
pupa_cmdline_get (const char *prompt, char cmdline[], unsigned max_len,
int echo_char, int readline)
{
unsigned xpos, ypos, ystart;
pupa_size_t lpos, llen;
pupa_size_t plen;
char buf[max_len];
int key;
auto void cl_insert (const char *str);
auto void cl_delete (unsigned len);
auto void cl_print (int pos, int c);
auto void cl_set_pos (void);
void cl_set_pos (void)
{
xpos = (plen + lpos) % 79;
ypos = ystart + (plen + lpos) / 79;
pupa_gotoxy (xpos, ypos);
}
void cl_print (int pos, int c)
{
char *p;
for (p = buf + pos; *p; p++)
{
if (xpos++ > 78)
{
pupa_putchar ('\n');
xpos = 1;
if (ypos == (unsigned) (pupa_getxy () & 0xFF))
ystart--;
else
ypos++;
}
if (c)
pupa_putchar (c);
else
pupa_putchar (*p);
}
}
void cl_insert (const char *str)
{
pupa_size_t len = pupa_strlen (str);
if (len + llen < max_len)
{
pupa_memmove (buf + lpos + len, buf + lpos, llen - lpos + 1);
pupa_memmove (buf + lpos, str, len);
llen += len;
lpos += len;
cl_print (lpos - len, echo_char);
cl_set_pos ();
}
}
void cl_delete (unsigned len)
{
if (lpos + len <= llen)
{
pupa_size_t saved_lpos = lpos;
lpos = llen - len;
cl_set_pos ();
cl_print (lpos, ' ');
lpos = saved_lpos;
cl_set_pos ();
pupa_memmove (buf + lpos, buf + lpos + len, llen - lpos + 1);
llen -= len;
cl_print (lpos, echo_char);
cl_set_pos ();
}
}
plen = pupa_strlen (prompt);
lpos = llen = 0;
buf[0] = '\0';
if ((pupa_getxy () >> 8) != 0)
pupa_putchar ('\n');
pupa_printf (prompt);
xpos = plen;
ystart = ypos = (pupa_getxy () & 0xFF);
cl_insert (cmdline);
while ((key = PUPA_TERM_ASCII_CHAR (pupa_getkey ())) != '\n' && key != '\r')
{
if (readline)
{
switch (key)
{
case 1: /* Ctrl-a */
lpos = 0;
cl_set_pos ();
break;
case 2: /* Ctrl-b */
if (lpos > 0)
{
lpos--;
cl_set_pos ();
}
break;
case 5: /* Ctrl-e */
lpos = llen;
cl_set_pos ();
break;
case 6: /* Ctrl-f */
if (lpos < llen)
{
lpos++;
cl_set_pos ();
}
break;
case 9: /* Ctrl-i or TAB */
/* FIXME */
break;
case 11: /* Ctrl-k */
if (lpos < llen)
{
if (kill_buf)
pupa_free (kill_buf);
kill_buf = pupa_strdup (buf + lpos);
pupa_errno = PUPA_ERR_NONE;
cl_delete (llen - lpos);
}
break;
case 14: /* Ctrl-n */
/* FIXME */
break;
case 16: /* Ctrl-p */
/* FIXME */
break;
case 21: /* Ctrl-u */
if (lpos > 0)
{
pupa_size_t n = lpos;
if (kill_buf)
pupa_free (kill_buf);
kill_buf = pupa_malloc (n + 1);
pupa_errno = PUPA_ERR_NONE;
if (kill_buf)
{
pupa_memcpy (kill_buf, buf, n);
kill_buf[n] = '\0';
}
lpos = 0;
cl_set_pos ();
cl_delete (n);
}
break;
case 25: /* Ctrl-y */
if (kill_buf)
cl_insert (kill_buf);
break;
}
}
switch (key)
{
case '\e':
return 0;
case '\b':
if (lpos > 0)
{
lpos--;
cl_set_pos ();
}
/* fall through */
case 4: /* Ctrl-d */
if (lpos < llen)
cl_delete (1);
break;
default:
if (pupa_isprint (key))
{
char str[2];
str[0] = key;
str[1] = '\0';
cl_insert (str);
}
break;
}
}
pupa_putchar ('\n');
/* If ECHO_CHAR is NUL, remove leading spaces. */
lpos = 0;
if (! echo_char)
while (buf[lpos] == ' ')
lpos++;
pupa_memcpy (cmdline, buf + lpos, llen - lpos + 1);
return 1;
}

176
normal/command.c Normal file
View File

@ -0,0 +1,176 @@
/*
* PUPA -- Preliminary Universal Programming Architecture for GRUB
* Copyright (C) 2003 Yoshinori K. Okuji <okuji@enbug.org>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <pupa/normal.h>
#include <pupa/misc.h>
#include <pupa/mm.h>
#include <pupa/err.h>
static pupa_command_t pupa_command_list;
void
pupa_register_command (const char *name,
int (*func) (int argc, char *argv[]),
unsigned flags,
const char *summary,
const char *description)
{
pupa_command_t cmd, *p;
cmd = (pupa_command_t) pupa_malloc (sizeof (*cmd));
if (! cmd)
return;
cmd->name = name;
cmd->func = func;
cmd->flags = flags;
cmd->summary = summary;
cmd->description = description;
/* Keep the list sorted for simplicity. */
p = &pupa_command_list;
while (*p)
{
if (pupa_strcmp ((*p)->name, name) > 0)
break;
p = &((*p)->next);
}
cmd->next = *p;
*p = cmd;
}
void
pupa_unregister_command (const char *name)
{
pupa_command_t *p, q;
for (p = &pupa_command_list, q = *p; q; p = &(q->next), q = q->next)
if (pupa_strcmp (name, q->name) == 0)
{
*p = q->next;
pupa_free (q);
break;
}
}
pupa_command_t
pupa_command_find (char *cmdline)
{
char *first_space;
pupa_command_t cmd;
first_space = pupa_strchr (cmdline, ' ');
if (first_space)
*first_space = '\0';
for (cmd = pupa_command_list; cmd; cmd = cmd->next)
if (pupa_strcmp (cmdline, cmd->name) == 0)
break;
if (! cmd)
pupa_error (PUPA_ERR_UNKNOWN_COMMAND, "unknown command `%s'", cmdline);
if (first_space)
*first_space = ' ';
return cmd;
}
int
pupa_command_execute (char *cmdline)
{
pupa_command_t cmd;
char *p;
char **args;
int num = 0;
int i;
int ret;
cmd = pupa_command_find (cmdline);
if (! cmd)
return -1;
/* Count arguments. */
p = cmdline;
while (1)
{
while (*p && *p != ' ')
p++;
if (! *p)
break;
while (*p == ' ')
p++;
num++;
}
args = (char **) pupa_malloc (sizeof (char *) * (num + 1));
if (! args)
return -1;
/* Fill arguments. */
for (i = 0, p = pupa_strchr (cmdline, ' '); i < num && p; i++)
{
if (! p)
break;
while (*p == ' ')
p++;
args[i] = p;
while (*p && *p != ' ')
p++;
*p++ = '\0';
}
/* Terminate the array with NULL. */
args[i] = 0;
ret = (cmd->func) (num, args);
pupa_free (args);
return ret;
}
static int
rescue_command (int argc __attribute__ ((unused)),
char *argv[] __attribute__ ((unused)))
{
pupa_longjmp (pupa_exit_env, 0);
/* Never reach here. */
return 0;
}
void
pupa_command_init (void)
{
/* This is a special command, because this never be called actually. */
pupa_register_command ("title", 0, PUPA_COMMAND_FLAG_TITLE, 0, 0);
pupa_register_command ("rescue", rescue_command, PUPA_COMMAND_FLAG_BOTH,
"rescue",
"Enter into the rescue mode.");
}

57
normal/i386/setjmp.S Normal file
View File

@ -0,0 +1,57 @@
/*
* PUPA -- Preliminary Universal Programming Architecture for GRUB
* Copyright (C) 2003 Yoshinori K. Okuji <okuji@enbug.org>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <pupa/symbol.h>
.file "setjmp.S"
.text
/*
* int pupa_setjmp (pupa_jmp_buf env)
*/
FUNCTION(pupa_setjmp)
movl %ebx, 0(%eax) /* EBX */
movl %esi, 4(%eax) /* ESI */
movl %edi, 8(%eax) /* EDI */
movl %ebp, 12(%eax) /* EBP */
popl %ecx
movl %esp, 16(%eax) /* ESP */
movl %ecx, 20(%eax) /* EIP */
xorl %eax, %eax
jmp *%ecx
/*
* int pupa_longjmp (pupa_jmp_buf env, int val)
*/
FUNCTION(pupa_longjmp)
movl 0(%eax), %ebx
movl 4(%eax), %esi
movl 8(%eax), %edi
movl 12(%eax), %ebp
movl 16(%eax), %esp
movl 20(%eax), %ecx
movl %edx, %eax
testl %eax, %eax
jnz 1f
incl %eax
1: jmp *%ecx

351
normal/main.c Normal file
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@ -0,0 +1,351 @@
/* main.c - the normal mode main routine */
/*
* PUPA -- Preliminary Universal Programming Architecture for GRUB
* Copyright (C) 2000,2001,2002 Free Software Foundation, Inc.
* Copyright (C) 2002,2003 Yoshinori K. Okuji <okuji@enbug.org>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <pupa/kernel.h>
#include <pupa/normal.h>
#include <pupa/dl.h>
#include <pupa/rescue.h>
#include <pupa/misc.h>
#include <pupa/file.h>
#include <pupa/mm.h>
#include <pupa/term.h>
pupa_jmp_buf pupa_exit_env;
/* Read a line from the file FILE. */
static int
get_line (pupa_file_t file, char cmdline[], int max_len)
{
char c;
int pos = 0;
int literal = 0;
int comment = 0;
while (1)
{
if (pupa_file_read (file, &c, 1) != 1)
break;
/* Skip all carriage returns. */
if (c == '\r')
continue;
/* Replace tabs with spaces. */
if (c == '\t')
c = ' ';
/* The previous is a backslash, then... */
if (literal)
{
/* If it is a newline, replace it with a space and continue. */
if (c == '\n')
{
c = ' ';
/* Go back to overwrite the backslash. */
if (pos > 0)
pos--;
}
literal = 0;
}
if (c == '\\')
literal = 1;
if (comment)
{
if (c == '\n')
comment = 0;
}
else if (pos == 0)
{
if (c == '#')
comment = 1;
else if (! pupa_isspace (c))
cmdline[pos++] = c;
}
else
{
if (c == '\n')
break;
if (pos < max_len)
cmdline[pos++] = c;
}
}
cmdline[pos] = '\0';
return pos;
}
static void
free_menu (pupa_menu_t menu)
{
pupa_menu_entry_t entry = menu->entry_list;
while (entry)
{
pupa_menu_entry_t next_entry = entry->next;
pupa_command_list_t cmd = entry->command_list;
while (cmd)
{
pupa_command_list_t next_cmd = cmd->next;
pupa_free ((void *) cmd->command);
cmd = next_cmd;
}
pupa_free ((void *) entry->title);
entry = next_entry;
}
pupa_free (menu);
}
/* Read the config file CONFIG and return a menu. If no entry is present,
return NULL. */
static pupa_menu_t
read_config_file (const char *config)
{
pupa_file_t file;
static char cmdline[PUPA_MAX_CMDLINE];
pupa_menu_t menu;
pupa_menu_entry_t *next_entry, cur_entry = 0;
pupa_command_list_t *next_cmd, cur_cmd;
/* Try to open the config file. */
file = pupa_file_open (config);
if (! file)
return 0;
/* Initialize the menu. */
menu = (pupa_menu_t) pupa_malloc (sizeof (*menu));
if (! menu)
{
pupa_file_close (file);
return 0;
}
menu->default_entry = 0;
menu->fallback_entry = -1;
menu->timeout = -1;
menu->size = 0;
menu->entry_list = 0;
next_entry = &(menu->entry_list);
next_cmd = 0;
/* Read each line. */
while (get_line (file, cmdline, sizeof (cmdline)))
{
pupa_command_t cmd;
cmd = pupa_command_find (cmdline);
pupa_errno = PUPA_ERR_NONE;
if (! cmd)
{
pupa_printf ("Unknown command `%s' is ignored.\n", cmdline);
continue;
}
if (cmd->flags & PUPA_COMMAND_FLAG_TITLE)
{
char *p;
cur_entry = (pupa_menu_entry_t) pupa_malloc (sizeof (*cur_entry));
if (! cur_entry)
goto fail;
p = pupa_strchr (cmdline, ' ');
if (p)
cur_entry->title = pupa_strdup (p);
else
cur_entry->title = pupa_strdup ("");
if (! cur_entry->title)
{
pupa_free (cur_entry);
goto fail;
}
cur_entry->num = 0;
cur_entry->command_list = 0;
cur_entry->next = 0;
*next_entry = cur_entry;
next_entry = &(cur_entry->next);
next_cmd = &(cur_entry->command_list);
menu->size++;
}
else if (! cur_entry)
{
/* Run the command if possible. */
if (cmd->flags & PUPA_COMMAND_FLAG_MENU)
{
pupa_command_execute (cmdline);
pupa_print_error ();
pupa_errno = PUPA_ERR_NONE;
}
else
{
pupa_printf ("Invalid command `%s' is ignored.\n", cmdline);
continue;
}
}
else
{
cur_cmd = (pupa_command_list_t) pupa_malloc (sizeof (*cur_cmd));
if (! cur_cmd)
goto fail;
cur_cmd->command = pupa_strdup (cmdline);
if (! cur_cmd->command)
{
pupa_free (cur_cmd);
goto fail;
}
cur_cmd->next = 0;
*next_cmd = cur_cmd;
next_cmd = &(cur_cmd->next);
cur_entry->num++;
}
}
fail:
pupa_file_close (file);
/* If no entry was found or any error occurred, return NULL. */
if (menu->size == 0 || pupa_errno != PUPA_ERR_NONE)
{
free_menu (menu);
return 0;
}
/* Check values of the default entry and the fallback one. */
if (menu->fallback_entry >= menu->size)
menu->fallback_entry = -1;
if (menu->default_entry < 0 || menu->default_entry >= menu->size)
{
if (menu->fallback_entry < 0)
menu->default_entry = 0;
else
{
menu->default_entry = menu->fallback_entry;
menu->fallback_entry = -1;
}
}
return menu;
}
/* This starts the normal mode. */
void
pupa_enter_normal_mode (const char *config)
{
if (pupa_setjmp (pupa_exit_env) == 0)
pupa_normal_execute (config, 0);
}
/* Initialize the screen. */
void
pupa_normal_init_page (void)
{
pupa_cls ();
pupa_printf ("\n\
PUPA version %s\n\n",
PACKAGE_VERSION);
}
/* Read the config file CONFIG and execute the menu interface or
the command-line interface. */
void
pupa_normal_execute (const char *config, int nested)
{
pupa_menu_t menu = 0;
if (config)
{
menu = read_config_file (config);
/* Ignore any error. */
pupa_errno = PUPA_ERR_NONE;
}
if (menu)
pupa_menu_run (menu, nested);
else
pupa_cmdline_run (nested);
}
/* Enter normal mode from rescue mode. */
static void
pupa_rescue_cmd_normal (int argc, char *argv[])
{
if (argc == 0)
{
/* Guess the config filename. */
char *config;
const char *prefix;
prefix = pupa_dl_get_prefix ();
if (prefix)
{
config = pupa_malloc (pupa_strlen (prefix) + sizeof ("/pupa.cfg"));
if (! config)
return;
pupa_sprintf (config, "%s/pupa.cfg", prefix);
pupa_enter_normal_mode (config);
pupa_free (config);
}
else
pupa_enter_normal_mode (0);
}
else
pupa_enter_normal_mode (argv[0]);
}
PUPA_MOD_INIT
{
/* Normal mode shouldn't be unloaded. */
pupa_dl_ref (mod);
/* Register a command "normal" for the rescue mode. */
pupa_rescue_register_command ("normal", pupa_rescue_cmd_normal,
"enter normal mode");
/* This registers some built-in commands. */
pupa_command_init ();
}
PUPA_MOD_FINI
{
pupa_rescue_unregister_command ("normal");
}

272
normal/menu.c Normal file
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/*
* PUPA -- Preliminary Universal Programming Architecture for GRUB
* Copyright (C) 2003 Yoshinori K. Okuji <okuji@enbug.org>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <pupa/normal.h>
#include <pupa/term.h>
#include <pupa/misc.h>
/* FIXME: These below are all runaround. */
#define DISP_UP 0x18
#define DISP_DOWN 0x19
#define DISP_RIGHT 0x1a
#define DISP_HLINE 0xc4
#define DISP_VLINE 0xb3
#define DISP_UL 0xda
#define DISP_UR 0xbf
#define DISP_LL 0xc0
#define DISP_LR 0xd9
static void
draw_border (void)
{
unsigned i;
pupa_setcolorstate (PUPA_TERM_COLOR_NORMAL);
pupa_gotoxy (1, 3);
pupa_putchar (DISP_UL);
for (i = 0; i < 73; i++)
pupa_putchar (DISP_HLINE);
pupa_putchar (DISP_UR);
i = 1;
while (1)
{
pupa_gotoxy (1, 3 + i);
if (i > 12)
break;
pupa_putchar (DISP_VLINE);
pupa_gotoxy (75, 3 + i);
pupa_putchar (DISP_VLINE);
i++;
}
pupa_putchar (DISP_LL);
for (i = 0; i < 73; i++)
pupa_putchar (DISP_HLINE);
pupa_putchar (DISP_LR);
pupa_setcolorstate (PUPA_TERM_COLOR_STANDARD);
}
static void
print_message (int nested)
{
pupa_printf ("\n\
Use the %c and %c keys to select which entry is highlighted.\n",
DISP_UP, DISP_DOWN);
pupa_printf ("\
Press enter to boot the selected OS, \'e\' to edit the\n\
commands before booting, or \'c\' for a command-line.");
if (nested)
pupa_printf ("\
ESC to return previous menu.");
}
static pupa_menu_entry_t
get_entry (pupa_menu_t menu, int no)
{
pupa_menu_entry_t e;
for (e = menu->entry_list; e && no > 0; e = e->next, no--)
;
return e;
}
static void
print_entry (int y, int highlight, pupa_menu_entry_t entry)
{
int x;
const char *title;
title = entry ? entry->title : "";
pupa_setcolorstate (highlight
? PUPA_TERM_COLOR_HIGHLIGHT
: PUPA_TERM_COLOR_NORMAL);
pupa_gotoxy (2, y);
pupa_putchar (' ');
for (x = 3; x < 75; x++)
{
if (*title && x <= 72)
{
if (x == 72)
pupa_putchar (DISP_RIGHT);
else
pupa_putchar (*title++);
}
else
pupa_putchar (' ');
}
pupa_gotoxy (74, y);
pupa_setcolorstate (PUPA_TERM_COLOR_STANDARD);
}
static void
print_entries (pupa_menu_t menu, int first, int offset)
{
pupa_menu_entry_t e;
int i;
pupa_gotoxy (77, 4);
if (first)
pupa_putchar (DISP_UP);
else
pupa_putchar (' ');
e = get_entry (menu, first);
for (i = 0; i < 12; i++)
{
print_entry (4 + i, offset == i, e);
if (e)
e = e->next;
}
pupa_gotoxy (77, 4 + 12);
if (e)
pupa_putchar (DISP_DOWN);
else
pupa_putchar (' ');
pupa_gotoxy (74, 4 + offset);
}
static void
init_page (int nested)
{
pupa_normal_init_page ();
draw_border ();
print_message (nested);
}
static int
run_menu (pupa_menu_t menu, int nested)
{
int first, offset;
pupa_setcursor (0);
first = 0;
offset = menu->default_entry;
if (offset > 11)
{
first = offset - 11;
offset = 11;
}
init_page (nested);
print_entries (menu, first, offset);
while (1)
{
int c;
c = PUPA_TERM_ASCII_CHAR (pupa_getkey ());
switch (c)
{
case 16:
case '^':
if (offset > 0)
{
print_entry (4 + offset, 0, get_entry (menu, first + offset));
offset--;
print_entry (4 + offset, 1, get_entry (menu, first + offset));
}
else if (first > 0)
{
first--;
print_entries (menu, first, offset);
}
break;
case 14:
case 'v':
if (menu->size > first + offset + 1)
{
if (offset < 11)
{
print_entry (4 + offset, 0,
get_entry (menu, first + offset));
offset++;
print_entry (4 + offset, 1,
get_entry (menu, first + offset));
}
else
{
first++;
print_entries (menu, first, offset);
}
}
break;
case '\n':
case '\r':
case 6:
pupa_setcursor (1);
return first + offset;
case '\e':
if (nested)
{
pupa_setcursor (1);
return -1;
}
break;
case 'c':
pupa_setcursor (1);
pupa_cmdline_run (1);
pupa_setcursor (0);
init_page (nested);
print_entries (menu, first, offset);
break;
default:
break;
}
}
/* Never reach here. */
return -1;
}
void
pupa_menu_run (pupa_menu_t menu, int nested)
{
while (1)
{
int boot_entry;
boot_entry = run_menu (menu, nested);
if (boot_entry < 0)
break;
/* FIXME: Boot the entry. */
}
}