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Major upgrade by Vladimir Marangozov.
This commit is contained in:
Guido van Rossum
parent
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commit
a1b1cdbab2
1 changed files with 145 additions and 37 deletions
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@ -5,32 +5,53 @@
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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 pre-compiled (unshared)
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# .o file
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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 -bM, -bE, -bI, -H, -T, and -lm
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# arguments will be supplied by this script. The compiler
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# specific ("-lc" or "-lc_r", "-lpthreads", etc) arguments
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# will be automatically passed to "ld" according to the CC
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# command provided as a first argument to this script.
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# Usually, the same CC command was used to produce the
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# pre-compiled .o file.
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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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# NOTES: 1. Currently specific to the building of Python
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# interpreter shared objects, in that the entry
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# point name is hardcoded based on the object file
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# name (the "mathmodule.o" file will expect an
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# entry point of "initmath"). This could be remedied
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# by the support (or simple expectation) of a "-e"
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# argument.
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# 2. The resulting shared object file is left in the
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# current directory with the extension .so
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# 3. Uncommenting the "echo" lines gives detailed output
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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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# -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: Aug-6-1996 -- Take care of the compiler specific --
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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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@ -42,21 +63,113 @@
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# ========================================================================
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#
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# Variables
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CC=$1; shift
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usage="Usage: ld_so_aix [CC command] [ld arguments]"
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if test ! -n "$*"; then
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echo $usage; exit 2
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fi
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objfile=$1; shift
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filename=`echo $objfile | sed -e "s:.*/\([^/]*\)$:\1:" -e "s/\..*$//"`
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entry=init`echo $filename | sed "s/module.*//"`
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expfile="$filename.exp"
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impfile="python.exp"
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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"
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CCOPT="$CCOPT -Wl,-bM:SRE -Wl,-T512 -Wl,-H512 -lm"
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CCARGS="$objfile $*"
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CCOPT="$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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makexp_aix $filename.exp "$objfile" $objfile
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# Export list generation.
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#echo makexp_aix $expfile "$objfile" $objs
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makexp_aix $expfile "$objfile" $objs
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# Perform the link.
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#echo $CC $CCOPT $CCARGS
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@ -64,9 +177,4 @@ $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 $filename.exp
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# Remove the exec rights on the shared module.
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#echo chmod -x `echo $objfile | sed "s/\.o$/.so/"`
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chmod -x `echo $objfile | sed "s/\.o$/.so/"`
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rm -f $expfile
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