#!/bin/sh
# genscripts.sh - generate the ld-emulation-target specific files
#
-# Usage: genscripts.sh srcdir libdir host_alias target_alias \
-# default_emulation this_emulation
+# Usage: genscripts.sh srcdir libdir host target target_alias \
+# default_emulation native_lib_dirs this_emulation tool_dir
#
# Sample usage:
# genscripts.sh /djm/ld-devo/devo/ld /usr/local/lib sparc-sun-sunos4.1.3 \
-# sparc-sun-sunos4.1.3 sun4 sun3
+# sparc-sun-sunos4.1.3 sparc-sun-sunos4.1.3 sun4 "" sun3 sparc-sun-sunos4.1.3
# produces sun3.x sun3.xbn sun3.xn sun3.xr sun3.xu em_sun3.c
srcdir=$1
libdir=$2
-host_alias=$3
-target_alias=$4
-DEFAULT_EMULATION=$5
-EMULATION_NAME=$6
+host=$3
+target=$4
+target_alias=$5
+EMULATION_LIBPATH=$6
+NATIVE_LIB_DIRS=$7
+EMULATION_NAME=$8
+tool_lib=`echo ${libdir} | sed -e 's|/lib$||'`/${9-$target_alias}/lib
# Include the emulation-specific parameters:
. ${srcdir}/emulparams/${EMULATION_NAME}.sh
+if test -d ldscripts; then
+ true
+else
+ mkdir ldscripts
+fi
+
# Set the library search path, for libraries named by -lfoo.
# If LIB_PATH is defined (e.g., by Makefile) and non-empty, it is used.
# Otherwise, the default is set here.
# To force a logically empty LIB_PATH, do LIBPATH=":".
if [ "x${LIB_PATH}" = "x" ] ; then
- if [ "x${host_alias}" = "x${target_alias}" ] ; then
- # Native.
- LIB_PATH=/lib:/usr/lib:${libdir}
- if [ "${libdir}" != /usr/local/lib ] ; then
- LIB_PATH=${LIB_PATH}:/usr/local/lib
- fi
- else
- # Cross.
- LIB_PATH=:
- fi
+ # Cross, or native non-default emulation not requesting LIB_PATH.
+ LIB_PATH=
+
+ if [ "x${host}" = "x${target}" ] ; then
+ case " $EMULATION_LIBPATH " in
+ *" ${EMULATION_NAME} "*)
+ # Native, and default or emulation requesting LIB_PATH.
+ LIB_PATH=/lib:/usr/lib
+ if [ -n "${NATIVE_LIB_DIRS}" ]; then
+ LIB_PATH=${LIB_PATH}:${NATIVE_LIB_DIRS}
+ fi
+ if [ "${libdir}" != /usr/lib ]; then
+ LIB_PATH=${LIB_PATH}:${libdir}
+ fi
+ if [ "${libdir}" != /usr/local/lib ] ; then
+ LIB_PATH=${LIB_PATH}:/usr/local/lib
+ fi
+ esac
+ fi
fi
+
+# Always search $(tooldir)/lib, aka /usr/local/TARGET/lib.
+LIB_PATH=${LIB_PATH}:${tool_lib}
+
LIB_SEARCH_DIRS=`echo ${LIB_PATH} | tr ':' ' ' | sed -e 's/\([^ ][^ ]*\)/SEARCH_DIR(\1);/g'`
-# Generate 5 script files from a master script template in
-# ${srcdir}/scripttempl/${SCRIPT_NAME}.sh. Which one of the 5 script files
-# is actually used depends on command line options given to ld.
-# (SCRIPT_NAME was set in the emulparams_file.)
+# Generate 5 or 6 script files from a master script template in
+# ${srcdir}/scripttempl/${SCRIPT_NAME}.sh. Which one of the 5 or 6
+# script files is actually used depends on command line options given
+# to ld. (SCRIPT_NAME was set in the emulparams_file.)
#
# A .x script file is the default script.
# A .xr script is for linking without relocation (-r flag).
# A .xu script is like .xr, but *do* create constructors (-Ur flag).
# A .xn script is for linking with -n flag (mix text and data on same page).
# A .xbn script is for linking with -N flag (mix text and data on same page).
+# A .xs script is for generating a shared library with the --shared
+# flag; it is only generated if $GENERATE_SHLIB_SCRIPT is set by the
+# emulation parameters.
-SEGMENT_SIZE=${SEGMENT_SIZE-${PAGE_SIZE}}
+SEGMENT_SIZE=${SEGMENT_SIZE-${TARGET_PAGE_SIZE}}
# Determine DATA_ALIGNMENT for the 5 variants, using
# values specified in the emulparams/<emulation>.sh file or default.
LD_FLAG=u
DATA_ALIGNMENT=${DATA_ALIGNMENT_u}
-CONSTRUCTING=
+CONSTRUCTING=" "
(. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \
ldscripts/${EMULATION_NAME}.xu
LD_FLAG=
DATA_ALIGNMENT=${DATA_ALIGNMENT_}
-RELOCATING=
+RELOCATING=" "
(. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \
ldscripts/${EMULATION_NAME}.x
(. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \
ldscripts/${EMULATION_NAME}.xbn
-# Generate em_${EMULATION_NAME}.c.
+if test -n "$GENERATE_SHLIB_SCRIPT"; then
+ LD_FLAG=shared
+ DATA_ALIGNMENT=${DATA_ALIGNMENT_s-${DATA_ALIGNMENT_}}
+ CREATE_SHLIB=" "
+ # Note that TEXT_START_ADDR is set to NONPAGED_TEXT_START_ADDR.
+ (. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \
+ ldscripts/${EMULATION_NAME}.xs
+fi
+
+for i in $EMULATION_LIBPATH ; do
+ test "$i" = "$EMULATION_NAME" && COMPILE_IN=true
+done
+
+# Generate e${EMULATION_NAME}.c.
. ${srcdir}/emultempl/${TEMPLATE_NAME-generic}.em