-# genscripts.sh
-# This shell script does the work of generating the ld-emulation-target
-# specific information from a specific file of paramaters.
-# Usage: genscripts.sh srcdir libdir host_alias target_alias emulation_name
+#!/bin/sh
+# genscripts.sh - generate the ld-emulation-target specific files
+#
+# Usage: genscripts.sh srcdir libdir exec_prefix \
+# host target target_alias default_emulation \
+# native_lib_dirs this_emulation tool_dir
+#
# Sample usage:
-# genscripts.sh /offsite/djm/work/devo/ld /usr/local/lib sparc-sun-sunos4.1.3 sparc-sun-sunos4.1.3 sun3.sh
+# genscripts.sh /djm/ld-devo/devo/ld /usr/local/lib /usr/local \
+# sparc-sun-sunos4.1.3 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
+exec_prefix=$3
+host=$4
+target=$5
+target_alias=$6
+EMULATION_LIBPATH=$7
+NATIVE_LIB_DIRS=$8
+EMULATION_NAME=$9
+shift 9
+# Can't use ${1:-$target_alias} here due to an Ultrix shell bug.
+if [ "x$1" = "x" ] ; then
+ tool_lib=${exec_prefix}/${target_alias}/lib
+else
+ tool_lib=${exec_prefix}/$1/lib
+fi
# Include the emulation-specific parameters:
-. ${srcdir}/emulparams/$5
+. ${srcdir}/emulparams/${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.
# 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.
+# 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.
+# A .xc script is for linking with -z combreloc; it is only generated if
+# $GENERATE_COMBRELOC_SCRIPT is set by the emulation parameters or
+# $SCRIPT_NAME is "elf".
+# A .xsc script is for linking with --shared -z combreloc; it is generated
+# if $GENERATE_COMBRELOC_SCRIPT is set by the emulation parameters or
+# $SCRIPT_NAME is "elf" and $GENERATE_SHLIB_SCRIPT is set by the emulation
+# parameters too.
+
+if [ "x$SCRIPT_NAME" = "xelf" ]; then
+ GENERATE_COMBRELOC_SCRIPT=yes
+fi
-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=r
DATA_ALIGNMENT=${DATA_ALIGNMENT_r}
DEFAULT_DATA_ALIGNMENT="ALIGN(${SEGMENT_SIZE})"
-(. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \
- ldscripts/${EMULATION_NAME}.xr
+( echo "/* Script for ld -r: link without relocation */"
+ . ${srcdir}/emulparams/${EMULATION_NAME}.sh
+ . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xr
LD_FLAG=u
DATA_ALIGNMENT=${DATA_ALIGNMENT_u}
-CONSTRUCTING=
-(. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \
- ldscripts/${EMULATION_NAME}.xu
+CONSTRUCTING=" "
+( echo "/* Script for ld -Ur: link w/out relocation, do create constructors */"
+ . ${srcdir}/emulparams/${EMULATION_NAME}.sh
+ . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xu
LD_FLAG=
DATA_ALIGNMENT=${DATA_ALIGNMENT_}
-RELOCATING=
-(. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \
- ldscripts/${EMULATION_NAME}.x
+RELOCATING=" "
+( echo "/* Default linker script, for normal executables */"
+ . ${srcdir}/emulparams/${EMULATION_NAME}.sh
+ . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.x
LD_FLAG=n
DATA_ALIGNMENT=${DATA_ALIGNMENT_n}
TEXT_START_ADDR=${NONPAGED_TEXT_START_ADDR-${TEXT_START_ADDR}}
-(. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \
- ldscripts/${EMULATION_NAME}.xn
+( echo "/* Script for -n: mix text and data on same page */"
+ . ${srcdir}/emulparams/${EMULATION_NAME}.sh
+ . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xn
LD_FLAG=N
DATA_ALIGNMENT=${DATA_ALIGNMENT_N}
-(. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \
- ldscripts/${EMULATION_NAME}.xbn
+( echo "/* Script for -N: mix text and data on same page; don't align data */"
+ . ${srcdir}/emulparams/${EMULATION_NAME}.sh
+ . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xbn
+
+if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
+ DATA_ALIGNMENT=${DATA_ALIGNMENT_c-${DATA_ALIGNMENT_}}
+ LD_FLAG=c
+ COMBRELOC=ldscripts/${EMULATION_NAME}.xc.tmp
+ ( echo "/* Script for -z combreloc: combine and sort reloc sections */"
+ . ${srcdir}/emulparams/${EMULATION_NAME}.sh
+ . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+ ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xc
+ rm -f ${COMBRELOC}
+ COMBRELOC=
+fi
+
+if test -n "$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.
+ (
+ echo "/* Script for ld --shared: link shared library */"
+ . ${srcdir}/emulparams/${EMULATION_NAME}.sh
+ . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+ ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xs
+ if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
+ LD_FLAG=cshared
+ DATA_ALIGNMENT=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
+ COMBRELOC=ldscripts/${EMULATION_NAME}.xc.tmp
+ ( echo "/* Script for --shared -z combreloc: shared library, combine & sort relocs */"
+ . ${srcdir}/emulparams/${EMULATION_NAME}.sh
+ . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
+ ) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xsc
+ rm -f ${COMBRELOC}
+ COMBRELOC=
+ fi
+fi
-#sed -e s/"<ldtarget>"/${EMULATION_NAME}/g -e s/"<arch>"/${ARCH}/g \
-# -e s/"<target>"/${EMULATION_NAME}/g -e s/"<target_name>"/${OUTPUT_FORMAT}/g \
-# <${srcdir}/${TEMPLATE_NAME-ldtemplate} >em_${EMULATION_NAME}.c
+for i in $EMULATION_LIBPATH ; do
+ test "$i" = "$EMULATION_NAME" && COMPILE_IN=true
+done
-# Generate em_${EMULATION_NAME}.c.
+# Generate e${EMULATION_NAME}.c.
. ${srcdir}/emultempl/${TEMPLATE_NAME-generic}.em
projects / binutils.git / blobdiff