# Copyright (C) 2002,2003 David McCullough <davidm@snapgear.com>
# Copyright (C) 2000, Lineo. davidm@lineo.com
#
+# This is Free Software, under the GNU Public Licence v2 or greater.
+#
LINKER="$0.real" # the original renamed-linker
ELF2FLT="`expr $0 : '\(.*\)ld'`elf2flt"
+NM="`expr $0 : '\(.*\)ld'`nm"
TOOLDIR="`dirname $0`" # let gcc find the tools for us
-LDSCRIPTPATH="${TOOLDIR}/../@target_alias@/lib" # and the scripts
+OBJCOPY="`expr $0 : '\(.*\)ld'`objcopy"
+[ -f "$OBJCOPY" ] || OBJCOPY="$TOOLDIR/../../bin/@target_alias@-objcopy"
+OBJDUMP="`expr $OBJCOPY : '\(.*\)objcopy'`objdump"
+LDSCRIPTPATH="@binutils_ldscript_dir@" # and the scripts
SHARED_ID=""
NEWLDSCRIPT=""
+WANT_SHARED=""
+
+# check TOOLDIR from prefix/bin/ or prefix/target-alias/bin/
+[ -d "${LDSCRIPTPATH}" ] || LDSCRIPTPATH="${TOOLDIR}/../lib"
#
# if we have the elf2flt options, run it
-move-rodata)
MOVDAT="y";; # Put rodata in ROM if possible
-
+ -s) ;; # Ignore -s (strip)
+
-shared-lib-id)
shift; SHARED_ID="$1";; # Shared library ID
+ -shared|-G)
+ WANT_SHARED="y";; # Shared library
-o) shift; OFILE="$1";; # the final outfile
-o*) OFILE="`expr \"$1\" : '-o\(.*\)'`";;
VERBOSE="y"
;;
+ -m) shift; EMUL="-m $1";; # ld emulations for h8300
+ -m*) EMUL=$1;;
+
*) ARG1="$ARG1 $1"
;;
esac
shift
done
+ if [ "$WANT_SHARED" = "y" ]
+ then
+ if [ -z "$SHARED_ID" ]
+ then
+ echo "-shared used without passing a shared library ID"
+ exit 1
+ fi
+ fi
if [ "$FINAL" = "yes" ]
then
[ "$VERBOSE" = "y" ] && set -x
ARG1="$ARG1 $FINAL_ONLY"
NEWLDSCRIPT=`mktemp /tmp/flt-XXXXXX`
SEDOP=" -e s/^R_RODAT// -e /^W_RODAT/d"
+ OBJCOPYOP=""
if [ "$MOVDAT" ]
then
$LINKER -r -d -o "$OFILE.elf2flt" $ARG1 || exit $?
- if [ "`@target_alias@-objdump -h "$OFILE.elf2flt" | \
+ if [ "`$OBJDUMP -h "$OFILE.elf2flt" | \
egrep -A1 '[.]rodata' | grep RELOC`" ]
then
echo "warning: .rodata section contains relocations"
then
# Non application modules enter via main not _start
# SEDOP="$SEDOP -e 's/ENTRY (_start)/ENTRY (main)/'"
- SEDOP="$SEDOP -e s/\\(ENTRY.\\)(_start)/\1(lib_main)/"
+ SEDOP="$SEDOP -e s/\\(ENTRY.\\)(@SYMBOL_PREFIX@_start)/\1(lib_main)/"
+ OBJCOPYOP="--localize-hidden --weaken"
fi
# Provide the magic parameter that defines the library data segment pointer offset
- ARG1="$ARG1 -defsym _current_shared_library_a5_offset_=`expr ${SHARED_ID} '*' -4 - 4`"
+ GOT_ADJ=4
+ case "@target_cpu@" in
+ bfin) GOT_OFFSET="_current_shared_library_p5_offset_" GOT_ADJ=1;;
+ h8300) GOT_OFFSET="__current_shared_library_er5_offset_";;
+ *) GOT_OFFSET="_current_shared_library_a5_offset_";;
+ esac
+ ARG1="$ARG1 -defsym $GOT_OFFSET=`expr ${SHARED_ID} '*' -${GOT_ADJ} - ${GOT_ADJ}`"
+ fi
+ if [ "@emit_relocs@" = "yes" ]
+ then
+ SEDOP="$SEDOP -e s/^SINGLE_LINK://"
+ else
+ SEDOP="$SEDOP -e /^SINGLE_LINK:/d"
+ fi
+ if [ "@emit_ctor_dtor@" = "yes" ]
+ then
+ SEDOP="$SEDOP -e s/^TOR://"
+ else
+ SEDOP="$SEDOP -e /^TOR:/d"
fi
# provide a default linker script, we usually need one
LDSCRIPT="$NEWLDSCRIPT"
fi
- if [ "@got_check@" = "no" ]
+ if [ "@emit_relocs@" = "yes" ]
then
- $LINKER $SDIRS -T $LDSCRIPT -Ur -d -o "$OFILE.elf" $ARG1 ||exit $?
- $LINKER $SDIRS -T $LDSCRIPT -o "$OFILE.gdb" $ARG1 ||exit $?
+ $LINKER $EMUL $SDIRS -T $LDSCRIPT -q -o "$OFILE.gdb" $ARG1 ||exit $?
+ RFILE="$OFILE.gdb"
+ FLTFLAGS="$FLTFLAGS -a"
else
- $LINKER -r -d -o "$OFILE.elf2flt" $ARG1 ||exit $?
- $LINKER $SDIRS -T $LDSCRIPT -Ur -o "$OFILE.elf" "$OFILE.elf2flt" ||exit $?
- $LINKER $SDIRS -T $LDSCRIPT -o "$OFILE.gdb" "$OFILE.elf2flt" ||exit $?
- rm -f "$OFILE.elf2flt"
+ if [ "@got_check@" = "no" ]
+ then
+ $LINKER $EMUL $SDIRS -T $LDSCRIPT -Ur -d -o "$OFILE.elf" $ARG1 ||exit $?
+ $LINKER $EMUL $SDIRS -T $LDSCRIPT -o "$OFILE.gdb" $ARG1 ||exit $?
+ else
+ $LINKER $EMUL -r -d -o "$OFILE.elf2flt" $ARG1 ||exit $?
+ $LINKER $EMUL $SDIRS -T $LDSCRIPT -Ur -o "$OFILE.elf" "$OFILE.elf2flt" ||exit $?
+ $LINKER $EMUL $SDIRS -T $LDSCRIPT -o "$OFILE.gdb" "$OFILE.elf2flt" ||exit $?
+ rm -f "$OFILE.elf2flt"
+ fi
+ RFILE="$OFILE.elf"
fi
- if grep _GLOBAL_OFFSET_TABLE_ "$OFILE.gdb" > /dev/null
+ if $NM "$OFILE.gdb" | grep _GLOBAL_OFFSET_TABLE_ > /dev/null
then
- $ELF2FLT $FLTFLAGS -o "$OFILE" -p "$OFILE.gdb" "$OFILE.elf" || exit $?
+ $ELF2FLT $FLTFLAGS -o "$OFILE" -p "$OFILE.gdb" "$RFILE" || exit $?
else
- $ELF2FLT $FLTFLAGS -o "$OFILE" -r "$OFILE.elf" || exit $?
+ $ELF2FLT $FLTFLAGS -o "$OFILE" -r "$RFILE" || exit $?
+ fi
+ if [ "$OBJCOPYOP" ]
+ then
+ if $OBJCOPY $OBJCOPYOP --help > /dev/null 2>&1
+ then
+ $OBJCOPY $OBJCOPYOP "$OFILE.gdb" ||exit $?
+ else
+ case " $OBJCOPYOP " in
+ *" --localize-hidden "*)
+ SYMS=`mktemp /tmp/flt-XXXXXX`
+ $OBJDUMP --syms "$OFILE.gdb" > "$SYMS" ||exit $?
+ sed -n 's/.*\(\.hidden\|\.internal\) \(.*\)/-L \2/p' < "$SYMS" > "$SYMS.hidden" ||exit $?
+ if [ -s "$SYMS.hidden" ]
+ then
+ xargs ${VERBOSE:+-t} $OBJCOPY "$OFILE.gdb" < "$SYMS.hidden" ||exit $?
+ fi
+ rm -f "$SYMS" "$SYMS.hidden"
+ ;;
+ esac
+ case " $OBJCOPYOP " in
+ *" --weaken "*)
+ $OBJCOPY --weaken "$OFILE.gdb" ||exit $?
+ ;;
+ esac
+ fi
fi
- rm -f "$OFILE.elf" # not needed for any reason
+ [ "$RFILE" = "$OFILE.gdb" ] || rm -f "$RFILE" # not needed for any reason
rm -f "$NEWLDSCRIPT"
exit 0
fi
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