Subversion Repositories openrisc_2011-10-31

#!/bin/sh

# Copyright (c) 2005 Red Hat Incorporated.

# All rights reserved.

#

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

# modification, are permitted provided that the following conditions are met:

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#     Redistributions of source code must retain the above copyright

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#     Redistributions in binary form must reproduce the above copyright

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

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#     The name of Red Hat Incorporated may not be used to endorse

#     or promote products derived from this software without specific

#     prior written permission.

#

# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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

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

srcdir="$1"

name="$2"

ramstart="$3"

ramsize="$4"

romstart="$5"

romsize="$6"

vecprefix="$7"

sedcmd="s/RAMSTART/$ramstart/g; s/RAMSIZE/$ramsize/g"

sedcmd="$sedcmd; s/ROMSTART/$romstart/g; s/ROMSIZE/$romsize/g"

# .rodata can be left with .text

rotext='/IF_ROCOPY/d'

# .rodata needs to be with .data

rodata='/IF_ROROM/d'

# All sections are put in one region

simram='s/LOWROM/RAM/g; s/= .*SIZEOF.*/= 0);/; s/AT>ROM//g'

oneram='s/> ROM/> RAM/g;'

# RW data needs to be copied to RAM

rwonly='s/LOWROM/ROM/g; s/ SIZEOF(.rodata) + //g'

# all data needs to be copied to RAM

rocopy='s/LOWROM/RAM AT>ROM/g'

case $name:$romstart in

  sim*:0 )

    # The r8c and m32c simulators have only a single memory region

    sedcmd="$sedcmd; $simram; $oneram; $rotext"

    ;;

  sim*:* )

    # This is most likely the m16c simulator

    sedcmd="$sedcmd; $simram; $rodata"

    ;;

  *:0x???? )

    # This is most likely the r8c chip

    sedcmd="$sedcmd; $rwonly; $rotext"

    ;;

  m32*:* )

    sedcmd="$sedcmd; $rwonly; $rotext"

    ;;

  *:* )

    sedcmd="$sedcmd; $rocopy; $rodata"

    ;;

esac

sedcmd="$sedcmd; /ORIGIN = 0,/d"

sedcmd="$sedcmd; s/VECSTART/${vecprefix}dc/; s/RESETSTART/${vecprefix}fc/"

sed "$sedcmd" < ${srcdir}/m32c.tmpl > ${name}.ld