# 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
+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=""
+# check TOOLDIR from prefix/bin/ or prefix/target-alias/bin/
+[ -d "${LDSCRIPTPATH}" ] || LDSCRIPTPATH="${TOOLDIR}/../lib"
+
#
# if we have the elf2flt options, run it
#
then
ARG1=
ARG2=
- OFILE=
+ OFILE="a.out"
PIC=
SDIRS=
LDSCRIPT=
FINAL="yes"
+ FINAL_ONLY=
MOVDAT=
+ VERBOSE=
while [ $# -ne 0 ]
do
-EB) ARG1="$ARG1 $1"; SDIRS="$SDIRS $1";; # arm big endian
+ -relax) ;; # eat this for microblaze
+
-r|-Ur) FINAL="" # this is not a final link
ARG1="$ARG1 $1"
;;
+ -v) ARG1="$ARG1 $1"
+ VERBOSE="y"
+ ;;
+
+ -m) shift; EMUL="-m $1";; # ld emulations for h8300
+ -m*) EMUL=$1;;
+
*) ARG1="$ARG1 $1"
;;
esac
if [ "$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 | \
+ $LINKER -r -d -o "$OFILE.elf2flt" $ARG1 || exit $?
+ if [ "`$OBJDUMP -h "$OFILE.elf2flt" | \
egrep -A1 '[.]rodata' | grep RELOC`" ]
then
echo "warning: .rodata section contains relocations"
# Non application modules enter via main not _start
# SEDOP="$SEDOP -e 's/ENTRY (_start)/ENTRY (main)/'"
SEDOP="$SEDOP -e s/\\(ENTRY.\\)(_start)/\1(lib_main)/"
+ OBJCOPYOP="--localize-hidden --weaken"
fi
# Provide the magic parameter that defines the library data segment pointer offset
- ARG1="$ARG1 -defsym _current_shared_library_a5_offset_=`expr ${SHARED_ID} '*' -4 - 4`"
+ case "@target_cpu@" in
+ h8300) GOT_OFFSET="__current_shared_library_er5_offset_";;
+ *) GOT_OFFSET="_current_shared_library_a5_offset_";;
+ esac
+ ARG1="$ARG1 -defsym $GOT_OFFSET=`expr ${SHARED_ID} '*' -4 - 4`"
+ fi
+ if [ "@emit_relocs@" = "yes" ]
+ then
+ SEDOP="$SEDOP -e s/^SINGLE_LINK://"
+ else
+ SEDOP="$SEDOP -e /^SINGLE_LINK:/d"
fi
# provide a default linker script, we usually need one
- [ -z "$LDSCRIPT" ] && LDSCRIPT="@prefix@/@target_alias@/lib/elf2flt.ld"
+ [ -z "$LDSCRIPT" ] && LDSCRIPT="${LDSCRIPTPATH}/elf2flt.ld"
# if we can find the linker script we preprocess it, otherwise
# we assume the user knows what they are doing
if [ -f "$LDSCRIPT" ]; then
sed $SEDOP < "$LDSCRIPT" > "$NEWLDSCRIPT"
LDSCRIPT="$NEWLDSCRIPT"
- elif [ -f "@prefix@/@target_alias@/lib/$LDSCRIPT" ]; then
- sed $SEDOP < "@prefix@/@target_alias@/lib/$LDSCRIPT" > "$NEWLDSCRIPT"
+ elif [ -f "${LDSCRIPTPATH}/$LDSCRIPT" ]; then
+ sed $SEDOP < "${LDSCRIPTPATH}/$LDSCRIPT" > "$NEWLDSCRIPT"
LDSCRIPT="$NEWLDSCRIPT"
- elif [ -f "@prefix@/@target_alias@/lib/ldscripts/$LDSCRIPT" ]; then
- sed $SEDOP < "@prefix@/@target_alias@/lib/ldscripts/$LDSCRIPT" > "$NEWLDSCRIPT"
+ elif [ -f "${LDSCRIPTPATH}/ldscripts/$LDSCRIPT" ]; then
+ sed $SEDOP < "${LDSCRIPTPATH}/ldscripts/$LDSCRIPT" > "$NEWLDSCRIPT"
LDSCRIPT="$NEWLDSCRIPT"
fi
- $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 grep _GLOBAL_OFFSET_TABLE_ $OFILE.gdb > /dev/null
+ if [ "@emit_relocs@" = "yes" ]
+ then
+ $LINKER $EMUL $SDIRS -T $LDSCRIPT -q -o "$OFILE.gdb" $ARG1 ||exit $?
+ RFILE="$OFILE.gdb"
+ FLTFLAGS="$FLTFLAGS -a"
+ else
+ 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 $NM "$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
- exec $LINKER -o $OFILE $ARG1
+ exec $LINKER -o "$OFILE" $ARG1
fi
#
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