Subversion Repositories HelenOS

#! /bin/sh

#

# Copyright (C) 2006 Martin Decky

# All rights reserved.

#

# Redistribution and use in source and binary forms, with or without

# modification, are permitted provided that the following conditions

# are met:

#

# - Redistributions of source code must retain the above copyright

#   notice, this list of conditions and the following disclaimer.

# - Redistributions in binary form must reproduce the above copyright

#   notice, this list of conditions and the following disclaimer in the

#   documentation and/or other materials provided with the distribution.

# - The name of the author may not be used to endorse or promote products

#   derived from this software without specific prior written permission.

#

# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,

# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#

[ "$#" -lt 1 ] && exit 1

case "$1" in

	"binary")

		BFD="binary"

		;;

	"ecoff")

		BFD="ecoff-littlemips"

		;;

	*)

		echo "Undefined image format" >&1

		exit 1

		;;

esac

OBJCOPY="$2"

LINK="_link.ld"

HEADER="_components.h"

shift 2

echo "OUTPUT_FORMAT(\"${BFD}\")

ENTRY(start)

SECTIONS {

	.boot 0xbfc00000: AT (0) {

		*(BOOTSTRAP);

		*(.text);

		*(.rodata);

		*(.rodata.*);

		*(.data);		/* initialized data */

		*(.sdata);

		*(.sdata2);

		*(.sbss);

		*(.scommon);

		*(.bss);		/* uninitialized static variables */	

		*(COMMON); 		/* global variables */

		*(.reginfo);" > "$LINK"

echo '#ifndef ___COMPONENTS_H__

#define ___COMPONENTS_H__

typedef struct {

	char *name;

	void *start;

	void *end;

	unsigned int size;

} component_t;' > "$HEADER"

COUNT="0"

DATA=""

for TASK in "$@" ; do

	BASENAME="`basename "$TASK" | sed 's/^\(.*\)\.[^.]*$/\1/'`"

	OBJECT="${BASENAME}.o"

	SYMBOL="`echo "_binary_$TASK" | tr "./" "__"`"

	MACRO="`echo "$BASENAME" | tr [:lower:] [:upper:]`"

	echo "$TASK -> $OBJECT"

	echo "

		. = ALIGN(4096);

		*(.${BASENAME}_image);" >> "$LINK"

	echo "

extern int ${SYMBOL}_start;

extern int ${SYMBOL}_end;

#define ${MACRO}_START ((void *) &${SYMBOL}_start)

#define ${MACRO}_END ((void *) &${SYMBOL}_end)

#define ${MACRO}_SIZE ((unsigned int) ${MACRO}_END - (unsigned int) ${MACRO}_START)" >> "$HEADER"

	"$OBJCOPY" -I binary -O elf32-tradlittlemips -B mips --rename-section ".data=.${BASENAME}_image" "$TASK" "$OBJECT"

	DATA="${DATA}

	components[$COUNT].name = \"${BASENAME}\";

	components[$COUNT].start = ${MACRO}_START;

	components[$COUNT].end = ${MACRO}_END;

	components[$COUNT].size = ${MACRO}_SIZE;";

	COUNT="`expr "$COUNT" + 1`"

done

echo '	}

}' >> "$LINK"

echo "

#define COMPONENTS $COUNT

static void init_components(component_t components[])

{

$DATA

}

#endif

" >> "$HEADER"