1#!/bin/sh 2# 3# ======================================================================== 4# FILE: ld_so_aix 5# TYPE: executable, uses makexp_aix 6# SYSTEM: AIX 7# 8# DESCRIPTION: Creates a shareable .o from a set of pre-compiled 9# (unshared) .o files 10# 11# USAGE: ld_so_aix [CC] [arguments] 12# 13# ARGUMENTS: Same as for "ld". The following arguments are processed 14# or supplied by this script (those marked with an asterisk 15# can be overridden from command line): 16# 17# Argument Default value 18# (*) -o [OutputFileName] -o shr.o 19# (*) -e [EntryPointLabel] -e init[OutputBaseName] 20# (*) -bE:[ExportFile] -bE:[OutputBaseName].exp 21# (*) -bI:[ImportFile] -bI:./python.exp 22# -bM:[ModuleType] -bM:SRE 23# -bhalt:[Number] -bhalt:4 24# -T[Number] -T512 25# -H[Number] -H512 26# -lm 27# 28# The compiler specific ("-lc" or "-lc_r", "-lpthreads",...) 29# arguments will be automatically passed to "ld" according 30# to the CC command provided as a first argument to this 31# script. Usually, the same CC command was used to produce 32# the pre-compiled .o file(s). 33# 34# NOTES: 1. Since "ld_so_aix" was originally written for building 35# shared modules for the Python interpreter, the -e and 36# -bI default values match Python's conventions. In 37# Python, the entry point for a shared module is based 38# on the module's name (e.g., the "mathmodule" will 39# expect an entry point of "initmath"). 40# 2. The script accepts multiple .o or .a input files and 41# creates a single (shared) output file. The export list 42# that is created is based on the output file's basename 43# with the suffix ".exp". 44# 3. The resulting shared object file is left in the 45# current directory. 46# 4. Uncommenting the "echo" lines gives detailed output 47# about the commands executed in the script. 48# 49# 50# HISTORY: Oct-1996 -- Support added for multiple .o files -- 51# -- and optional arguments processing. -- 52# Chris Myers (myers@tc.cornell.edu), Keith Kwok 53# (kkwok@tc.cornell.edu) and Vladimir Marangozov 54# 55# Aug-6-1996 -- Take care of the compiler specific -- 56# -- args by leaving CC to invoke "ld". -- 57# Vladimir Marangozov 58# 59# Jul-1-1996 -- Make sure to use /usr/ccs/bin/ld -- 60# -- Use makexp_aix for the export list. -- 61# Vladimir Marangozov (Vladimir.Marangozov@imag.fr) 62# 63# Manus Hand (mhand@csn.net) -- Initial code -- 6/24/96 64# ======================================================================== 65# 66 67usage="Usage: ld_so_aix [CC command] [ld arguments]" 68if test ! -n "$*"; then 69 echo $usage; exit 2 70fi 71 72makexp=`dirname $0`/makexp_aix 73test -x "${makexp}" || makexp="@abs_srcdir@/makexp_aix" 74 75# Check for existence of compiler. 76CC=$1; shift 77whichcc=`which $CC` 78 79if test ! -x "$whichcc"; then 80 echo "ld_so_aix: Compiler '$CC' not found; exiting." 81 exit 2 82fi 83 84if test ! -n "$*"; then 85 echo $usage; exit 2 86fi 87 88# Default import file for Python 89# Can be overridden by providing a -bI: argument. 90impfile="./python.exp" 91 92# Parse arguments 93while test -n "$1" 94do 95 case "$1" in 96 -e | -Wl,-e) 97 if test -z "$2"; then 98 echo "ld_so_aix: The -e flag needs a parameter; exiting."; exit 2 99 else 100 shift; entry=$1 101 fi 102 ;; 103 -e* | -Wl,-e*) 104 entry=`echo $1 | sed -e "s/-Wl,//" -e "s/-e//"` 105 ;; 106 -o) 107 if test -z "$2"; then 108 echo "ld_so_aix: The -o flag needs a parameter; exiting."; exit 2 109 else 110 shift; objfile=$1 111 fi 112 ;; 113 -o*) 114 objfile=`echo $1 | sed "s/-o//"` 115 ;; 116 -bI:* | -Wl,-bI:*) 117 impfile=`echo $1 | sed -e "s/-Wl,//" -e "s/-bI://"` 118 ;; 119 -bE:* | -Wl,-bE:*) 120 expfile=`echo $1 | sed -e "s/-Wl,//" -e "s/-bE://"` 121 ;; 122 *.o | *.a) 123 objs="$objs $1" 124 args="$args $1" 125 ;; 126 -bM:* | -Wl,-bM:* | -H* | -Wl,-H* | -T* | -Wl,-T* | -lm) 127 ;; 128 *) 129 args="$args $1" 130 ;; 131 esac 132 shift 133done 134 135if test "$objfile" = "libpython@VERSION@@ABIFLAGS@.so"; then 136 ldsocoremode="true" 137fi 138 139if test -z "$objs"; then 140 echo "ld_so_aix: No input files; exiting." 141 exit 2 142elif test ! -r "$impfile" -a -z "$ldsocoremode"; then 143 echo "ld_so_aix: Import file '$impfile' not found or not readable; exiting." 144 exit 2 145fi 146 147# If -o wasn't specified, assume "-o shr.o" 148if test -z "$objfile"; then 149 objfile=shr.o 150fi 151 152filename=`basename $objfile | sed "s/\.[^.]*$//"` 153 154# If -bE: wasn't specified, assume "-bE:$filename.exp" 155if test -z "$expfile"; then 156 expfile="$filename.exp" 157fi 158 159# Default entry symbol for Python modules = init[modulename] 160# Can be overridden by providing a -e argument. 161if test -z "$entry"; then 162 entry=PyInit_`echo $filename | sed "s/module.*//"` 163fi 164 165#echo "ld_so_aix: Debug info section" 166#echo " -> output file : $objfile" 167#echo " -> import file : $impfile" 168#echo " -> export file : $expfile" 169#echo " -> entry point : $entry" 170#echo " -> object files: $objs" 171#echo " -> CC arguments: $args" 172 173if test -z "$ldsocoremode"; then 174 CCOPT="-Wl,-e$entry -Wl,-bE:$expfile -Wl,-bI:$impfile -Wl,-bhalt:4" 175else 176 CCOPT="-Wl,-bnoentry -Wl,-bE:$expfile -Wl,-bhalt:4" 177fi 178CCOPT="$CCOPT -Wl,-bM:SRE -Wl,-T512 -Wl,-H512 -Wl,-brtl -Wl,-bnortllib -lm -o $objfile" 179 180CCARGS="$args" 181 182# Export list generation. 183#echo $makexp $expfile "$objfile" $objs 184$makexp $expfile "$objfile" $objs 185 186# Perform the link. 187#echo $CC $CCOPT $CCARGS 188$CC $CCOPT $CCARGS 189retval=$? 190 191# Delete the module's export list file. 192# Comment this line if you need it. 193rm -f $expfile 194 195exit $retval 196