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184 lines
5.8 KiB
Bash
Executable File
184 lines
5.8 KiB
Bash
Executable File
#!/bin/sh
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#
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# ========================================================================
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# FILE: ld_so_aix
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# TYPE: executable, uses makexp_aix
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# SYSTEM: AIX
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#
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# DESCRIPTION: Creates a shareable .o from a set of pre-compiled
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# (unshared) .o files
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#
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# USAGE: ld_so_aix [CC] [arguments]
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#
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# ARGUMENTS: Same as for "ld". The following arguments are processed
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# or supplied by this script (those marked with an asterisk
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# can be overriden from command line):
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#
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# Argument Default value
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# (*) -o [OutputFileName] -o shr.o
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# (*) -e [EntryPointLabel] -e init[OutputBaseName]
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# (*) -bE:[ExportFile] -bE:[OutputBaseName].exp
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# (*) -bI:[ImportFile] -bI:./python.exp
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# -bM:[ModuleType] -bM:SRE
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# -bhalt:[Number] -bhalt:4
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# -T[Number] -T512
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# -H[Number] -H512
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# -lm
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#
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# The compiler specific ("-lc" or "-lc_r", "-lpthreads",...)
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# arguments will be automatically passed to "ld" according
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# to the CC command provided as a first argument to this
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# script. Usually, the same CC command was used to produce
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# the pre-compiled .o file(s).
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#
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# NOTES: 1. Since "ld_so_aix" was originally written for building
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# shared modules for the Python interpreter, the -e and
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# -bI default values match Python's conventions. In
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# Python, the entry point for a shared module is based
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# on the module's name (e.g., the "mathmodule" will
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# expect an entry point of "initmath").
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# 2. The script accepts multiple .o or .a input files and
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# creates a single (shared) output file. The export list
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# that is created is based on the output file's basename
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# with the suffix ".exp".
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# 3. The resulting shared object file is left in the
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# current directory.
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# 4. Uncommenting the "echo" lines gives detailed output
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# about the commands executed in the script.
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#
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#
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# HISTORY: Oct-1996 -- Support added for multiple .o files --
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# -- and optional arguments processing. --
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# Chris Myers (myers@tc.cornell.edu), Keith Kwok
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# (kkwok@tc.cornell.edu) and Vladimir Marangozov
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#
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# Aug-6-1996 -- Take care of the compiler specific --
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# -- args by leaving CC to invoke "ld". --
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# Vladimir Marangozov
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#
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# Jul-1-1996 -- Make sure to use /usr/ccs/bin/ld --
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# -- Use makexp_aix for the export list. --
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# Vladimir Marangozov (Vladimir.Marangozov@imag.fr)
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#
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# Manus Hand (mhand@csn.net) -- Initial code -- 6/24/96
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# ========================================================================
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#
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usage="Usage: ld_so_aix [CC command] [ld arguments]"
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if test ! -n "$*"; then
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echo $usage; exit 2
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fi
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makexp=`dirname $0`/makexp_aix
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# Check for existence of compiler.
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CC=$1; shift
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whichcc=`which $CC`
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if test ! -x "$whichcc"; then
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echo "ld_so_aix: Compiler '$CC' not found; exiting."
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exit 2
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fi
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if test ! -n "$*"; then
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echo $usage; exit 2
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fi
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# Default import file for Python
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# Can be overriden by providing a -bI: argument.
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impfile="./python.exp"
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# Parse arguments
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while test -n "$1"
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do
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case "$1" in
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-e | -Wl,-e)
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if test -z "$2"; then
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echo "ld_so_aix: The -e flag needs a parameter; exiting."; exit 2
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else
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shift; entry=$1
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fi
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;;
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-e* | -Wl,-e*)
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entry=`echo $1 | sed -e "s/-Wl,//" -e "s/-e//"`
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;;
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-o)
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if test -z "$2"; then
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echo "ld_so_aix: The -o flag needs a parameter; exiting."; exit 2
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else
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shift; objfile=$1
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fi
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;;
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-o*)
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objfile=`echo $1 | sed "s/-o//"`
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;;
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-bI:* | -Wl,-bI:*)
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impfile=`echo $1 | sed -e "s/-Wl,//" -e "s/-bI://"`
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;;
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-bE:* | -Wl,-bE:*)
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expfile=`echo $1 | sed -e "s/-Wl,//" -e "s/-bE://"`
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;;
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*.o | *.a)
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objs="$objs $1"
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args="$args $1"
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;;
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-bM:* | -Wl,-bM:* | -H* | -Wl,-H* | -T* | -Wl,-T* | -lm)
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;;
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*)
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args="$args $1"
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;;
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esac
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shift
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done
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if test -z "$objs"; then
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echo "ld_so_aix: No input files; exiting."
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exit 2
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elif test ! -r "$impfile"; then
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echo "ld_so_aix: Import file '$impfile' not found or not readable; exiting."
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exit 2
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fi
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# If -o wasn't specified, assume "-o shr.o"
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if test -z "$objfile"; then
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objfile=shr.o
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fi
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filename=`basename $objfile | sed "s/\.[^.]*$//"`
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# If -bE: wasn't specified, assume "-bE:$filename.exp"
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if test -z "$expfile"; then
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expfile="$filename.exp"
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fi
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# Default entry symbol for Python modules = init[modulename]
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# Can be overriden by providing a -e argument.
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if test -z "$entry"; then
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entry=init`echo $filename | sed "s/module.*//"`
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fi
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#echo "ld_so_aix: Debug info section"
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#echo " -> output file : $objfile"
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#echo " -> import file : $impfile"
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#echo " -> export file : $expfile"
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#echo " -> entry point : $entry"
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#echo " -> object files: $objs"
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#echo " -> CC arguments: $args"
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CCOPT="-Wl,-e$entry -Wl,-bE:$expfile -Wl,-bI:$impfile -Wl,-bhalt:4"
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CCOPT="$CCOPT -Wl,-bM:SRE -Wl,-T512 -Wl,-H512 -lm -o $objfile"
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CCARGS="$args"
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# Export list generation.
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#echo $makexp $expfile "$objfile" $objs
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$makexp $expfile "$objfile" $objs
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# Perform the link.
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#echo $CC $CCOPT $CCARGS
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$CC $CCOPT $CCARGS
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# Delete the module's export list file.
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# Comment this line if you need it.
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rm -f $expfile
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