X-Git-Url: http://git.osdn.net/view?a=blobdiff_plain;f=ld-elf2flt.in;h=b876636007ff38ab701ca2ed2a4b14438b5974ff;hb=611388043de23ea9b5e6fad4843e372961b90b3a;hp=17c77512e706ad7fad4b8aee946c480c645e52bd;hpb=fd884771c3807742e938a9b9e012e325c97f0817;p=uclinux-h8%2Felf2flt.git

diff --git a/ld-elf2flt.in b/ld-elf2flt.in
index 17c7751..b876636 100644
--- a/ld-elf2flt.in
+++ b/ld-elf2flt.in
@@ -9,13 +9,23 @@
 # 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
 #
@@ -24,13 +34,14 @@ if expr "$*" : ".*-elf2flt.*" > /dev/null
 then
 	ARG1=
 	ARG2=
-	OFILE=
+	OFILE="a.out"
 	PIC=
 	SDIRS=
 	LDSCRIPT=
 	FINAL="yes"
 	FINAL_ONLY=
 	MOVDAT=
+	VERBOSE=
 
 	while [ $# -ne 0 ]
 	do
@@ -60,12 +71,19 @@ then
 
 		-EB)      ARG1="$ARG1 $1"; SDIRS="$SDIRS $1";; # arm big endian
 
-		-relax)   FINAL_ONLY="$FINAL_ONLY $1" ;;
+		-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
@@ -74,13 +92,15 @@ then
 
 	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 "$OFILE.elf2flt" | \
 					egrep -A1 '[.]rodata' | grep RELOC`" ]
 			then
 				echo "warning: .rodata section contains relocations"
@@ -102,50 +122,94 @@ then
 				# Non application modules enter via main not _start
 				#    SEDOP="$SEDOP -e 's/ENTRY (_start)/ENTRY (main)/'"
 				SEDOP="$SEDOP -e s/\\(ENTRY.\\)(_start)/\1(lib_main)/"
+				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
 
-		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
 
-	exec $LINKER -o $OFILE $ARG1
+	exec $LINKER -o "$OFILE" $ARG1
 fi
 
 #