96 lines
3.2 KiB
Bash
Executable File
96 lines
3.2 KiB
Bash
Executable File
#!/bin/sh
|
|
# genscripts.sh - generate the ld-emulation-target specific files
|
|
#
|
|
# Usage: genscripts.sh srcdir libdir host_alias target_alias \
|
|
# default_emulation this_emulation
|
|
#
|
|
# Sample usage:
|
|
# genscripts.sh /djm/ld-devo/devo/ld /usr/local/lib sparc-sun-sunos4.1.3 \
|
|
# sparc-sun-sunos4.1.3 sun4 sun3
|
|
# 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
|
|
|
|
# Include the emulation-specific parameters:
|
|
. ${srcdir}/emulparams/${EMULATION_NAME}.sh
|
|
|
|
# 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_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
|
|
fi
|
|
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.)
|
|
#
|
|
# 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).
|
|
|
|
SEGMENT_SIZE=${SEGMENT_SIZE-${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
|
|
|
|
# Generate em_${EMULATION_NAME}.c.
|
|
. ${srcdir}/emultempl/${TEMPLATE_NAME-generic}.em
|