de566389ca
is to use shell scripts to generate everything. * Each emulation is defined by a short shell script with extension *.sh that specifies the emulation-specific parameters (such as the name of the *.sh-sc and *.em files to use). * genscript.sh is the master shell script used to generate an emulation. It is passed various argument, including the name a the emulation-speciic *.sh file that it "sources" to set variables to emulation-specifc parameters.
61 lines
2.5 KiB
Bash
Executable file
61 lines
2.5 KiB
Bash
Executable file
# This shell script does the work of generating the ld-emulation-target
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# specific information from a specific file of paramaters.
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# Usage: genscripts.sh srcdir host_alias target_alias emulation_name
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srcdir=$1
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host_alias=$2
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target_alias=$3
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# Include the emulation-specic parameters:
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. ${srcdir}/$4
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# Set the library search path (for libraries named by -lfoo).
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# If LIB_PATH is defined (and non-empty), it is used.
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# (The format is the usual list of colon-separated directories.)
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# (To force a logically empty LIB_PATH, do LIBPATH=":".)
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# Otherwise, the default is /lib:/usr/lib:/usr/local/lib,
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# unless cross-compiling, in which case the default remains empty.
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if [ "x${LIB_PATH}" = "x" -a "x${host_alias}" = "x${target_alias}" ] ; then
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LIB_PATH=/lib:/usr/lib:/usr/local/lib
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fi
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LIB_SEARCH_DIRS=`echo ${LIB_PATH} | tr ':' ' ' | sed -e 's/\([^ ][^ ]*\)/SEARCH_DIR(\1);/g'`
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# This script generates 5 script files from the master script template
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# in ${srcdir}/${SCRIPT_NAME}.sh. Which one of the 5 script files
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# is actually used depends on command line flags given to ld.
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# The actual script is filtered through the mkscript program
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# to convert it to a form suitable for including in a C program
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# as a C string literal.
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#
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# A .x script file is the default script.
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# A .xr script is for linking without relocation (-r flag).
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# A .xu script is like .xr, but *do* create constructors (-Ur flag).
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# A .xn script is for linking with -n flag (mix text and data on same page).
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# A .xN script is for linking with -N flag (mix text and data on same page).
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THIS_TEXT_START_ADDR=${TEXT_START_ADDR}
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SEGMENT_SIZE=${SEGMENT_SIZE-${PAGE_SIZE}}
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DATA_ALIGNMENT="ALIGN(${SEGMENT_SIZE})"
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FILTER_SCRIPT=""
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(. ${srcdir}/${SCRIPT_NAME}.sc-sh) | sed -e '/^ *$/d' | ./mkscript \
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>${EMULATION_NAME}.xr
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CONSTRUCTING=
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(. ${srcdir}/${SCRIPT_NAME}.sc-sh) | sed -e '/^ *$/d' | ./mkscript \
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>${EMULATION_NAME}.xu
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RELOCATING=
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(. ${srcdir}/${SCRIPT_NAME}.sc-sh) | sed -e '/^ *$/d' | ./mkscript \
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>${EMULATION_NAME}.x
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THIS_TEXT_START_ADDR=${NONPAGED_TEXT_START_ADDR-${TEXT_START_ADDR}}
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(. ${srcdir}/${SCRIPT_NAME}.sc-sh) | sed -e '/^ *$/d' | ./mkscript \
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>${EMULATION_NAME}.xn
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DATA_ALIGNMENT="."
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(. ${srcdir}/${SCRIPT_NAME}.sc-sh) | sed -e '/^ *$/d' | ./mkscript \
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>${EMULATION_NAME}.xN
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#sed -e s/"<ldtarget>"/${EMULATION_NAME}/g -e s/"<arch>"/${ARCH}/g \
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# -e s/"<target>"/${EMULATION_NAME}/g -e s/"<target_name>"/${OUTPUT_FORMAT}/g \
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# <${srcdir}/${TEMPLATE_NAME-ldtemplate} >ld__${EMULATION_NAME}.c
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. ${srcdir}/${TEMPLATE_NAME-generic}.em
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