a9d5f78a61
than piping thru tr(1). Also prefer case over for+test, as case will handle regex's nicely. Note we can't exactly follow the real 2.13 genscripts.sh as we wind up with multiple "'s in search paths. It is too late tonight to track down why.
165 lines
6.0 KiB
Bash
Executable File
165 lines
6.0 KiB
Bash
Executable File
#!/bin/sh
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# genscripts.sh - generate the ld-emulation-target specific files
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#
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# Usage: genscripts.sh srcdir libdir host target target_alias \
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# default_emulation native_lib_dirs this_emulation
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#
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# Sample usage:
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# genscripts.sh /djm/ld-devo/devo/ld /usr/local/lib sparc-sun-sunos4.1.3 \
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# sparc-sun-sunos4.1.3 sparc-sun-sunos4.1.3 sun4 "" sun3 sparc-sun-sunos4.1.3
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# produces sun3.x sun3.xbn sun3.xn sun3.xr sun3.xu em_sun3.c
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#
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# $FreeBSD$
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#
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# This is a cut-down version of the GNU script. Instead of jumping through
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# hoops for all possible combinations of paths, just use the libdir
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# argument in place of LIB_PATH.
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#
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# The host, target and target_alias arguments are not used in this version.
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#
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srcdir=$1
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libdir=$2
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host=$3
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target=$4
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target_alias=$5
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EMULATION_LIBPATH=$6
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NATIVE_LIB_DIRS=$7
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EMULATION_NAME=$8
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# Include the emulation-specific parameters:
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. ${srcdir}/emulparams/${EMULATION_NAME}.sh
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if test -d ldscripts; then
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true
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else
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mkdir ldscripts
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fi
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# Set the library search path, for libraries named by -lfoo.
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# If LIB_PATH is defined (e.g., by Makefile) and non-empty, it is used.
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# Otherwise, the default is set here.
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#
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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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LIB_SEARCH_DIRS=`echo ${libdir} | sed -e 's/:/ /g' -e 's/\([^ ][^ ]*\)/SEARCH_DIR(\1);/g'`
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#2.13 LIB_SEARCH_DIRS=`echo ${libdir} | sed -e 's/:/ /g' -e 's/\([^ ][^ ]*\)/SEARCH_DIR(\\"\1\\");/g'`
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# Generate 5 or 6 script files from a master script template in
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# ${srcdir}/scripttempl/${SCRIPT_NAME}.sh. Which one of the 5 or 6
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# script files is actually used depends on command line options given
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# to ld. (SCRIPT_NAME was set in the emulparams_file.)
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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 .xbn script is for linking with -N flag (mix text and data on same page).
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# A .xs script is for generating a shared library with the --shared
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# flag; it is only generated if $GENERATE_SHLIB_SCRIPT is set by the
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# emulation parameters.
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# A .xc script is for linking with -z combreloc; it is only generated if
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# $GENERATE_COMBRELOC_SCRIPT is set by the emulation parameters or
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# $SCRIPT_NAME is "elf".
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# A .xsc script is for linking with --shared -z combreloc; it is generated
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# if $GENERATE_COMBRELOC_SCRIPT is set by the emulation parameters or
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# $SCRIPT_NAME is "elf" and $GENERATE_SHLIB_SCRIPT is set by the emulation
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# parameters too.
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if [ "x$SCRIPT_NAME" = "xelf" ]; then
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GENERATE_COMBRELOC_SCRIPT=yes
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fi
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SEGMENT_SIZE=${SEGMENT_SIZE-${TARGET_PAGE_SIZE}}
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# Determine DATA_ALIGNMENT for the 5 variants, using
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# values specified in the emulparams/<emulation>.sh file or default.
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DATA_ALIGNMENT_="${DATA_ALIGNMENT_-${DATA_ALIGNMENT-ALIGN(${SEGMENT_SIZE})}}"
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DATA_ALIGNMENT_n="${DATA_ALIGNMENT_n-${DATA_ALIGNMENT_}}"
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DATA_ALIGNMENT_N="${DATA_ALIGNMENT_N-${DATA_ALIGNMENT-.}}"
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DATA_ALIGNMENT_r="${DATA_ALIGNMENT_r-${DATA_ALIGNMENT-}}"
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DATA_ALIGNMENT_u="${DATA_ALIGNMENT_u-${DATA_ALIGNMENT_r}}"
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LD_FLAG=r
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DATA_ALIGNMENT=${DATA_ALIGNMENT_r}
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DEFAULT_DATA_ALIGNMENT="ALIGN(${SEGMENT_SIZE})"
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( echo "/* Script for ld -r: link without relocation */"
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. ${srcdir}/emulparams/${EMULATION_NAME}.sh
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. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
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) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xr
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LD_FLAG=u
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DATA_ALIGNMENT=${DATA_ALIGNMENT_u}
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CONSTRUCTING=" "
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( echo "/* Script for ld -Ur: link w/out relocation, do create constructors */"
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. ${srcdir}/emulparams/${EMULATION_NAME}.sh
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. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
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) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xu
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LD_FLAG=
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DATA_ALIGNMENT=${DATA_ALIGNMENT_}
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RELOCATING=" "
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( echo "/* Default linker script, for normal executables */"
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. ${srcdir}/emulparams/${EMULATION_NAME}.sh
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. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
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) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.x
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LD_FLAG=n
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DATA_ALIGNMENT=${DATA_ALIGNMENT_n}
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TEXT_START_ADDR=${NONPAGED_TEXT_START_ADDR-${TEXT_START_ADDR}}
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( echo "/* Script for -n: mix text and data on same page */"
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. ${srcdir}/emulparams/${EMULATION_NAME}.sh
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. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
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) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xn
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LD_FLAG=N
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DATA_ALIGNMENT=${DATA_ALIGNMENT_N}
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( echo "/* Script for -N: mix text and data on same page; don't align data */"
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. ${srcdir}/emulparams/${EMULATION_NAME}.sh
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. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
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) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xbn
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if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
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DATA_ALIGNMENT=${DATA_ALIGNMENT_c-${DATA_ALIGNMENT_}}
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LD_FLAG=c
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COMBRELOC=ldscripts/${EMULATION_NAME}.xc.tmp
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( echo "/* Script for -z combreloc: combine and sort reloc sections */"
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. ${srcdir}/emulparams/${EMULATION_NAME}.sh
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. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
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) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xc
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rm -f ${COMBRELOC}
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COMBRELOC=
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fi
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if test -n "$GENERATE_SHLIB_SCRIPT"; then
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LD_FLAG=shared
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DATA_ALIGNMENT=${DATA_ALIGNMENT_s-${DATA_ALIGNMENT_}}
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CREATE_SHLIB=" "
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# Note that TEXT_START_ADDR is set to NONPAGED_TEXT_START_ADDR.
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(
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echo "/* Script for ld --shared: link shared library */"
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. ${srcdir}/emulparams/${EMULATION_NAME}.sh
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. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
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) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xs
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if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
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LD_FLAG=cshared
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DATA_ALIGNMENT=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
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COMBRELOC=ldscripts/${EMULATION_NAME}.xc.tmp
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( echo "/* Script for --shared -z combreloc: shared library, combine & sort relocs */"
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. ${srcdir}/emulparams/${EMULATION_NAME}.sh
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. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
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) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xsc
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rm -f ${COMBRELOC}
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COMBRELOC=
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fi
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fi
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case " $EMULATION_LIBPATH " in
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*" ${EMULATION_NAME} "*) COMPILE_IN=true;;
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esac
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# Generate e${EMULATION_NAME}.c.
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. ${srcdir}/emultempl/${TEMPLATE_NAME-generic}.em
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