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Guido van Rossumb4ae6a31996-08-08 19:05:09 +00001#!/bin/sh
2#
3# ========================================================================
4# FILE: ld_so_aix
5# TYPE: executable, uses makexp_aix
6# SYSTEM: AIX
7#
Guido van Rossuma1b1cdb1996-10-21 15:10:39 +00008# DESCRIPTION: Creates a shareable .o from a set of pre-compiled
9# (unshared) .o files
Guido van Rossumb4ae6a31996-08-08 19:05:09 +000010#
Guido van Rossuma93b5041996-08-08 19:06:31 +000011# USAGE: ld_so_aix [CC] [arguments]
12#
Guido van Rossuma1b1cdb1996-10-21 15:10:39 +000013# ARGUMENTS: Same as for "ld". The following arguments are processed
14# or supplied by this script (those marked with an asterisk
15# can be overriden from command line):
Guido van Rossumb4ae6a31996-08-08 19:05:09 +000016#
Guido van Rossuma1b1cdb1996-10-21 15:10:39 +000017# 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
Guido van Rossumfb842551997-08-06 23:42:07 +000023# -bhalt:[Number] -bhalt:4
Guido van Rossuma1b1cdb1996-10-21 15:10:39 +000024# -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
Guido van Rossumb4ae6a31996-08-08 19:05:09 +000047# about the commands executed in the script.
Guido van Rossuma1b1cdb1996-10-21 15:10:39 +000048#
Guido van Rossumb4ae6a31996-08-08 19:05:09 +000049#
Guido van Rossuma1b1cdb1996-10-21 15:10:39 +000050# 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 --
Guido van Rossuma93b5041996-08-08 19:06:31 +000056# -- args by leaving CC to invoke "ld". --
57# Vladimir Marangozov
58#
59# Jul-1-1996 -- Make sure to use /usr/ccs/bin/ld --
Guido van Rossumb4ae6a31996-08-08 19:05:09 +000060# -- 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
Guido van Rossuma1b1cdb1996-10-21 15:10:39 +000067usage="Usage: ld_so_aix [CC command] [ld arguments]"
68if test ! -n "$*"; then
69 echo $usage; exit 2
70fi
Guido van Rossuma93b5041996-08-08 19:06:31 +000071
Guido van Rossum5ade0841997-09-03 00:45:30 +000072makexp=`dirname $0`/makexp_aix
73
Guido van Rossuma1b1cdb1996-10-21 15:10:39 +000074# Check for existence of compiler.
75CC=$1; shift
76whichcc=`which $CC`
77
78if test ! -x "$whichcc"; then
79 echo "ld_so_aix: Compiler '$CC' not found; exiting."
80 exit 2
81fi
82
83if test ! -n "$*"; then
84 echo $usage; exit 2
85fi
86
87# Default import file for Python
88# Can be overriden by providing a -bI: argument.
89impfile="./python.exp"
90
91# Parse arguments
92while test -n "$1"
93do
94 case "$1" in
95 -e | -Wl,-e)
96 if test -z "$2"; then
97 echo "ld_so_aix: The -e flag needs a parameter; exiting."; exit 2
98 else
99 shift; entry=$1
100 fi
101 ;;
102 -e* | -Wl,-e*)
103 entry=`echo $1 | sed -e "s/-Wl,//" -e "s/-e//"`
104 ;;
105 -o)
106 if test -z "$2"; then
107 echo "ld_so_aix: The -o flag needs a parameter; exiting."; exit 2
108 else
109 shift; objfile=$1
110 fi
111 ;;
112 -o*)
113 objfile=`echo $1 | sed "s/-o//"`
114 ;;
115 -bI:* | -Wl,-bI:*)
116 impfile=`echo $1 | sed -e "s/-Wl,//" -e "s/-bI://"`
117 ;;
118 -bE:* | -Wl,-bE:*)
119 expfile=`echo $1 | sed -e "s/-Wl,//" -e "s/-bE://"`
120 ;;
121 *.o | *.a)
122 objs="$objs $1"
123 args="$args $1"
124 ;;
125 -bM:* | -Wl,-bM:* | -H* | -Wl,-H* | -T* | -Wl,-T* | -lm)
126 ;;
127 *)
128 args="$args $1"
129 ;;
130 esac
131 shift
132done
133
Georg Brandl9a829be2011-02-15 15:44:51 +0000134if test "$objfile" = "libpython@VERSION@@ABIFLAGS@.so"; then
Antoine Pitrou8e6b4072010-09-10 19:44:44 +0000135 ldsocoremode="true"
136fi
Guido van Rossuma1b1cdb1996-10-21 15:10:39 +0000137
138if test -z "$objs"; then
139 echo "ld_so_aix: No input files; exiting."
140 exit 2
Antoine Pitrou8e6b4072010-09-10 19:44:44 +0000141elif test ! -r "$impfile" -a -z "$ldsocoremode"; then
Guido van Rossuma1b1cdb1996-10-21 15:10:39 +0000142 echo "ld_so_aix: Import file '$impfile' not found or not readable; exiting."
143 exit 2
144fi
145
146# If -o wasn't specified, assume "-o shr.o"
147if test -z "$objfile"; then
148 objfile=shr.o
149fi
150
151filename=`basename $objfile | sed "s/\.[^.]*$//"`
152
153# If -bE: wasn't specified, assume "-bE:$filename.exp"
154if test -z "$expfile"; then
155 expfile="$filename.exp"
156fi
157
158# Default entry symbol for Python modules = init[modulename]
159# Can be overriden by providing a -e argument.
160if test -z "$entry"; then
Antoine Pitrou8e6b4072010-09-10 19:44:44 +0000161 entry=PyInit_`echo $filename | sed "s/module.*//"`
Guido van Rossuma1b1cdb1996-10-21 15:10:39 +0000162fi
163
Guido van Rossumfb842551997-08-06 23:42:07 +0000164#echo "ld_so_aix: Debug info section"
Guido van Rossuma1b1cdb1996-10-21 15:10:39 +0000165#echo " -> output file : $objfile"
166#echo " -> import file : $impfile"
167#echo " -> export file : $expfile"
168#echo " -> entry point : $entry"
169#echo " -> object files: $objs"
170#echo " -> CC arguments: $args"
Guido van Rossuma93b5041996-08-08 19:06:31 +0000171
Antoine Pitrou8e6b4072010-09-10 19:44:44 +0000172if test -z "$ldsocoremode"; then
173 CCOPT="-Wl,-e$entry -Wl,-bE:$expfile -Wl,-bI:$impfile -Wl,-bhalt:4"
174else
175 CCOPT="-Wl,-bnoentry -Wl,-bE:$expfile -Wl,-bhalt:4"
176fi
177CCOPT="$CCOPT -Wl,-bM:SRE -Wl,-T512 -Wl,-H512 -Wl,-brtl -Wl,-bnortllib -lm -o $objfile"
Neal Norwitza45770d2005-10-03 03:57:09 +0000178
Guido van Rossuma1b1cdb1996-10-21 15:10:39 +0000179CCARGS="$args"
Guido van Rossumb4ae6a31996-08-08 19:05:09 +0000180
Guido van Rossuma1b1cdb1996-10-21 15:10:39 +0000181# Export list generation.
Guido van Rossum5ade0841997-09-03 00:45:30 +0000182#echo $makexp $expfile "$objfile" $objs
183$makexp $expfile "$objfile" $objs
Guido van Rossumb4ae6a31996-08-08 19:05:09 +0000184
185# Perform the link.
Guido van Rossuma93b5041996-08-08 19:06:31 +0000186#echo $CC $CCOPT $CCARGS
187$CC $CCOPT $CCARGS
Antoine Pitrou8966c992009-05-01 21:18:27 +0000188retval=$?
Guido van Rossumb4ae6a31996-08-08 19:05:09 +0000189
190# Delete the module's export list file.
191# Comment this line if you need it.
Guido van Rossuma1b1cdb1996-10-21 15:10:39 +0000192rm -f $expfile
Antoine Pitrou8966c992009-05-01 21:18:27 +0000193
194exit $retval