-# This shell script does the work of generating the ld-emulation-target
-# specific information from a specific file of paramaters.
-# Usage: genscripts.sh srcdir 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 use_sysroot this_emulation tool_dir
+#
+# Sample usage:
+# 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 \
+# "" no sun3 sparc-sun-sunos4.1.3
+# produces sun3.x sun3.xbn sun3.xn sun3.xr sun3.xu em_sun3.c
srcdir=$1
-host_alias=$2
-target_alias=$3
-
-# Include the emulation-specic parameters:
-. ${srcdir}/$4
-
-# Set the library search path (for libraries named by -lfoo).
-# If LIB_PATH is defined (and non-empty), it is used.
-# (The format is the usual list of colon-separated directories.)
-# (To force a logically empty LIB_PATH, do LIBPATH=":".)
-# Otherwise, the default is /lib:/usr/lib:/usr/local/lib,
-# unless cross-compiling, in which case the default remains empty.
-
-if [ "x${LIB_PATH}" = "x" -a "x${host_alias}" = "x${target_alias}" ] ; then
- LIB_PATH=/lib:/usr/lib:/usr/local/lib
-fi
-LIB_SEARCH_DIRS=`echo ${LIB_PATH} | tr ':' ' ' | sed -e 's/\([^ ][^ ]*\)/SEARCH_DIR(\1);/g'`
-
-# This script generates 5 script files from the master script template
-# in ${srcdir}/${SCRIPT_NAME}.sh. Which one of the 5 script files
-# is actually used depends on command line flags given to ld.
-# The actual script is filtered through the mkscript program
-# to convert it to a form suitable for including in a C program
-# as a C string literal.
+libdir=$2
+exec_prefix=$3
+host=$4
+target=$5
+target_alias=$6
+EMULATION_LIBPATH=$7
+NATIVE_LIB_DIRS=$8
+use_sysroot=$9
+shift 9
+EMULATION_NAME=$1
+shift
+# 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:
+. ${srcdir}/emulparams/${EMULATION_NAME}.sh
+
+if test -d ldscripts; then
+ true
+else
+ mkdir ldscripts
+fi
+
+# Set some flags for the emultempl scripts. USE_LIBPATH will
+# be set for any libpath-using emulation; NATIVE will be set for a
+# libpath-using emulation where ${host} = ${target}. NATIVE
+# may already have been set by the emulparams file, but that's OK
+# (it'll just get set to "yes" twice).
+
+case " $EMULATION_LIBPATH " in
+ *" ${EMULATION_NAME} "*)
+ if [ "x${host}" = "x${target}" ] ; then
+ NATIVE=yes
+ USE_LIBPATH=yes
+ elif [ "x${use_sysroot}" = "xyes" ] ; then
+ USE_LIBPATH=yes
+ fi
+ ;;
+esac
+
+# If the emulparams file sets NATIVE, make sure USE_LIBPATH is set also.
+if test "x$NATIVE" = "xyes" ; then
+ USE_LIBPATH=yes
+fi
+
+# Set the library search path, for libraries named by -lfoo.
+# If LIB_PATH is defined (e.g., by Makefile) and non-empty, it is used.
+# Otherwise, the default is set here.
+#
+# The format is the usual list of colon-separated directories.
+# To force a logically empty LIB_PATH, do LIBPATH=":".
+#
+# If we are using a sysroot, prefix library paths with "=" to indicate this.
+#
+# If the emulparams file set LIBPATH_SUFFIX, prepend an extra copy of
+# the library path with the suffix applied.
+
+if [ "x${LIB_PATH}" = "x" ] && [ "x${USE_LIBPATH}" = xyes ] ; then
+ if [ x"$use_sysroot" != xyes ] ; then
+ LIB_PATH=${libdir}
+ fi
+ LIB_PATH2=""
+ for lib in ${NATIVE_LIB_DIRS}; do
+ # The "=" is harmless if we aren't using a sysroot, but also needless.
+ if [ "x${use_sysroot}" = "xyes" ] ; then
+ lib="=${lib}"
+ fi
+ addsuffix=
+ case "${LIBPATH_SUFFIX}:${lib}" in
+ :*) ;;
+ *:*${LIBPATH_SUFFIX}) ;;
+ *) addsuffix=yes ;;
+ esac
+ if test -n "$addsuffix"; then
+ case :${LIB_PATH}: in
+ *:${lib}${LIBPATH_SUFFIX}:*) ;;
+ ::) LIB_PATH=${lib}${LIBPATH_SUFFIX} ;;
+ *) LIB_PATH=${LIB_PATH}:${lib}${LIBPATH_SUFFIX} ;;
+ esac
+ case :${LIB_PATH}${LIB_PATH2}: in
+ *:${lib}:*) ;;
+ *) LIB_PATH2=${LIB_PATH2}:${lib} ;;
+ esac
+ else
+ case :${LIB_PATH}: in
+ *:${lib}:*) ;;
+ ::) LIB_PATH=${lib} ;;
+ *) LIB_PATH=${LIB_PATH}:${lib} ;;
+ esac
+ fi
+ done
+ LIB_PATH=${LIB_PATH}${LIB_PATH2}
+fi
+
+
+# Always search $(tooldir)/lib, aka /usr/local/TARGET/lib, except for
+# sysrooted configurations.
+if [ "x${use_sysroot}" != "xyes" ] ; then
+ LIB_PATH=${tool_lib}:${LIB_PATH}
+fi
+
+LIB_SEARCH_DIRS=`echo ${LIB_PATH} | sed -e 's/:/ /g' -e 's/\([^ ][^ ]*\)/SEARCH_DIR(\\"\1\\");/g'`
+
+# 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 .xN script is for linking with -N flag (mix text and data on same page).
-
-THIS_TEXT_START_ADDR=${TEXT_START_ADDR}
-SEGMENT_SIZE=${SEGMENT_SIZE-${PAGE_SIZE}}
-
-DATA_ALIGNMENT="ALIGN(${SEGMENT_SIZE})"
-FILTER_SCRIPT=""
-(. ${srcdir}/${SCRIPT_NAME}.sc-sh) | sed -e '/^ *$/d' | ./mkscript \
- >${EMULATION_NAME}.xr
-CONSTRUCTING=
-(. ${srcdir}/${SCRIPT_NAME}.sc-sh) | sed -e '/^ *$/d' | ./mkscript \
- >${EMULATION_NAME}.xu
-RELOCATING=
-(. ${srcdir}/${SCRIPT_NAME}.sc-sh) | sed -e '/^ *$/d' | ./mkscript \
- >${EMULATION_NAME}.x
-THIS_TEXT_START_ADDR=${NONPAGED_TEXT_START_ADDR-${TEXT_START_ADDR}}
-(. ${srcdir}/${SCRIPT_NAME}.sc-sh) | sed -e '/^ *$/d' | ./mkscript \
- >${EMULATION_NAME}.xn
-DATA_ALIGNMENT="."
-(. ${srcdir}/${SCRIPT_NAME}.sc-sh) | sed -e '/^ *$/d' | ./mkscript \
- >${EMULATION_NAME}.xN
-
-#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} >ld__${EMULATION_NAME}.c
-
-. ${srcdir}/${TEMPLATE_NAME-generic}.em
+# 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=${SEGMENT_SIZE-${MAXPAGESIZE-${TARGET_PAGE_SIZE}}}
+
+# Determine DATA_ALIGNMENT for the 5 variants, using
+# values specified in the emulparams/<emulation>.sh file or default.
+
+DATA_ALIGNMENT_="${DATA_ALIGNMENT_-${DATA_ALIGNMENT-ALIGN(${SEGMENT_SIZE})}}"
+DATA_ALIGNMENT_n="${DATA_ALIGNMENT_n-${DATA_ALIGNMENT_}}"
+DATA_ALIGNMENT_N="${DATA_ALIGNMENT_N-${DATA_ALIGNMENT-.}}"
+DATA_ALIGNMENT_r="${DATA_ALIGNMENT_r-${DATA_ALIGNMENT-}}"
+DATA_ALIGNMENT_u="${DATA_ALIGNMENT_u-${DATA_ALIGNMENT_r}}"
+
+LD_FLAG=r
+DATA_ALIGNMENT=${DATA_ALIGNMENT_r}
+DEFAULT_DATA_ALIGNMENT="ALIGN(${SEGMENT_SIZE})"
+( 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=" "
+( 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=" "
+( 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}}
+( 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}
+( 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
+
+case " $EMULATION_LIBPATH " in
+ *" ${EMULATION_NAME} "*) COMPILE_IN=true;;
+esac
+
+# Generate e${EMULATION_NAME}.c.
+. ${srcdir}/emultempl/${TEMPLATE_NAME-generic}.em
projects / deliverable / binutils-gdb.git / blobdiff