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- # 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
-
- srcdir=$1
- host_alias=$2
- target_alias=$3
-
- # Include the emulation-specific 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.
- #
- # 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 <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})"
- (. ${srcdir}/${SCRIPT_NAME}.sc-sh) | sed -e '/^ *$/d' | ./mkscript \
- >${EMULATION_NAME}.xr
-
- LD_FLAG=u
- DATA_ALIGNMENT=${DATA_ALIGNMENT_u}
- CONSTRUCTING=yes
- (. ${srcdir}/${SCRIPT_NAME}.sc-sh) | sed -e '/^ *$/d' | ./mkscript \
- >${EMULATION_NAME}.xu
-
- LD_FLAG=
- DATA_ALIGNMENT=${DATA_ALIGNMENT_}
- RELOCATING=yes
- (. ${srcdir}/${SCRIPT_NAME}.sc-sh) | sed -e '/^ *$/d' | ./mkscript \
- >${EMULATION_NAME}.x
-
- LD_FLAG=n
- DATA_ALIGNMENT=${DATA_ALIGNMENT_n}
- TEXT_START_ADDR=${NONPAGED_TEXT_START_ADDR-${TEXT_START_ADDR}}
- (. ${srcdir}/${SCRIPT_NAME}.sc-sh) | sed -e '/^ *$/d' | ./mkscript \
- >${EMULATION_NAME}.xn
-
- LD_FLAG=N
- DATA_ALIGNMENT=${DATA_ALIGNMENT_N}
- (. ${srcdir}/${SCRIPT_NAME}.sc-sh) | sed -e '/^ *$/d' | ./mkscript \
- >${EMULATION_NAME}.xbn
-
- #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} >e_${EMULATION_NAME}.c
-
- . ${srcdir}/${TEMPLATE_NAME-generic}.em
-