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

OBJCOPY="$1"
LINK="_link.ld"
HEADER="_components.h"

shift

echo 'OUTPUT_FORMAT("elf32-powerpc")
OUTPUT_ARCH(powerpc:common)
ENTRY(start)

SECTIONS {
    .boot 0x10000000: AT (0) { 
        *(BOOTSTRAP);
        *(REALMODE);
        *(.text);
        
        *(.rodata);
        *(.rodata.*);
        *(.data);       /* initialized data */
        *(.sdata);
        *(.sdata2);
        *(.sbss);
        *(.bss);        /* uninitialized static variables */    
        *(COMMON);      /* global variables */' > "$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"
    
    "$OBJCOPY" -I binary -O elf32-powerpc -B powerpc:common --rename-section ".data=.${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

component_t components[COMPONENTS]; 

static void init_components(void)
{
$DATA
}

#endif
" >> "$HEADER"