128 lines
4.1 KiB
Bash
128 lines
4.1 KiB
Bash
#!/bin/sh
|
|
# genscripts.sh - generate the ld-emulation-target specific files
|
|
#
|
|
# 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 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=$3
|
|
target=$4
|
|
target_alias=$5
|
|
DEFAULT_EMULATION=$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.
|
|
#
|
|
# The format is the usual list of colon-separated directories.
|
|
# To force a logically empty LIB_PATH, do LIBPATH=":".
|
|
|
|
if [ "x${LIB_PATH}" = "x" ] ; then
|
|
if [ "x${host}" = "x${target}" ] ; then
|
|
if [ "x${DEFAULT_EMULATION}" = "x${EMULATION_NAME}" ] ; then
|
|
# Native.
|
|
LIB_PATH=/usr/lib
|
|
if [ -n "${NATIVE_LIB_DIRS}" ]; then
|
|
LIB_PATH=${LIB_PATH}:${NATIVE_LIB_DIRS}
|
|
fi
|
|
if [ "${libdir}" != /usr/lib ]; then
|
|
LIB_PATH=${LIB_PATH}:${libdir}
|
|
fi
|
|
else
|
|
# Native, but not default emulation.
|
|
LIB_PATH=
|
|
fi
|
|
else
|
|
# Cross.
|
|
LIB_PATH=
|
|
fi
|
|
fi
|
|
|
|
LIB_SEARCH_DIRS=`echo ${LIB_PATH} | tr ':' ' ' | sed -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 .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-${TARGET_PAGE_SIZE}}
|
|
|
|
# Determine DATA_ALIGNMENT for the 5 variants, using
|
|
# values specified in the emulparams/<emulation>.sh file or default.
|
|
|
|
DATA_ALIGNMENT_="${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})"
|
|
(. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \
|
|
ldscripts/${EMULATION_NAME}.xr
|
|
|
|
LD_FLAG=u
|
|
DATA_ALIGNMENT=${DATA_ALIGNMENT_u}
|
|
CONSTRUCTING=" "
|
|
(. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \
|
|
ldscripts/${EMULATION_NAME}.xu
|
|
|
|
LD_FLAG=
|
|
DATA_ALIGNMENT=${DATA_ALIGNMENT_}
|
|
RELOCATING=" "
|
|
(. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \
|
|
ldscripts/${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
|
|
|
|
LD_FLAG=N
|
|
DATA_ALIGNMENT=${DATA_ALIGNMENT_N}
|
|
(. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \
|
|
ldscripts/${EMULATION_NAME}.xbn
|
|
|
|
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
|
|
|
|
test "$DEFAULT_EMULATION" = "$EMULATION_NAME" && COMPILE_IN=true
|
|
|
|
# Generate e${EMULATION_NAME}.c.
|
|
. ${srcdir}/emultempl/${TEMPLATE_NAME-generic}.em
|