1
# Copyright 2003, 2005, 2007 Free Software Foundation, Inc.
3
# This file is part of the GNU Binutils.
5
# This program is free software; you can redistribute it and/or modify
6
# it under the terms of the GNU General Public License as published by
7
# the Free Software Foundation; either version 3 of the License, or
8
# (at your option) any later version.
10
# This program is distributed in the hope that it will be useful,
11
# but WITHOUT ANY WARRANTY; without even the implied warranty of
12
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13
# GNU General Public License for more details.
15
# You should have received a copy of the GNU General Public License
16
# along with this program; if not, write to the Free Software
17
# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20
if {![istarget mips*-*-*] || ![is_elf_format]} {
25
if {[istarget mips*-*-irix6*]} {
26
set ldemul "-melf32bsmip"
27
} elseif {[istarget mips*el-*-linux*]} {
28
set ldemul "-melf32ltsmip"
29
} elseif {[istarget mips*-*-linux*]} {
30
set ldemul "-melf32btsmip"
31
} elseif {[istarget mips*el-*-*freebsd*]} {
32
set ldemul "-melf32ltsmip_fbsd"
33
} elseif {[istarget mips*-*-*freebsd*]} {
34
set ldemul "-melf32btsmip_fbsd"
39
# Assemble jr.s using each of the argument lists in ARGLIST. Return the
40
# list of object files on success and an empty list on failure.
41
proc assemble_for_flags {arglist} {
42
global as srcdir subdir
47
foreach args $arglist {
48
set obj "tmpdir/mips-flags-${index}.o"
49
if {![ld_assemble $as "$args $srcdir/$subdir/jr.s" $obj]} {
58
# Assemble a file using each set of arguments in ARGLIST. Check that
59
# the objects can be linked together and that the readelf output
60
# includes each flag named in FLAGS.
61
proc good_combination {arglist flags} {
62
global ld ldemul READELF
64
set finalobj "tmpdir/mips-flags.o"
65
set testname "MIPS compatible objects: $arglist"
66
set objs [assemble_for_flags $arglist]
70
} elseif {![ld_simple_link "$ld $ldemul" $finalobj "-r $objs"]} {
73
catch "exec $READELF --headers $finalobj" output
74
if {![regexp "Flags: *(\[^\n\]*)" $output full gotflags]} {
79
# GOTFLAGS is a list of flags separated by ", ".
80
# Convert it to a tcl list.
81
regsub -all ", " $gotflags "," gotflags
82
set gotflags [split $gotflags ","]
85
if {[lsearch -exact $gotflags $flag] < 0} {
98
# Like good_combination, but check that the objects can't be linked
99
# together successfully and that the output includes MESSAGE.
100
proc bad_combination {arglist message} {
101
global link_output ld ldemul
103
set finalobj "tmpdir/mips-flags.o"
104
set testname "MIPS incompatible objects: $arglist"
105
set objs [assemble_for_flags $arglist]
109
} elseif {[ld_simple_link "$ld $ldemul" $finalobj "-r $objs"]
110
|| [string first $message $link_output] < 0} {
117
# Routines to check for various kinds of incompatibility.
119
proc abi_conflict {arglist firstabi secondabi} {
120
bad_combination $arglist \
121
"linking $secondabi module with previous $firstabi modules"
124
proc isa_conflict {arglist firstisa secondisa} {
125
bad_combination $arglist \
126
"linking mips:$secondisa module with previous mips:$firstisa modules"
129
proc regsize_conflict {arglist} {
130
bad_combination $arglist \
131
"linking 32-bit code with 64-bit code"
134
abi_conflict { "-mabi=eabi -mgp32" "-mips4 -mabi=32" } EABI32 O32
135
abi_conflict { "-mips4 -mabi=o64" "-mips3 -mabi=eabi" } O64 EABI64
137
isa_conflict { "-march=vr5500 -32" "-march=sb1 -32" } 5500 sb1
138
isa_conflict { "-march=vr5400 -32" "-march=4120 -32" } 5400 4120
139
isa_conflict { "-march=r3900 -32" "-march=r6000 -32" } 3900 6000
140
isa_conflict { "-march=r4010 -32" "-march=r4650 -32" } 4010 4650
141
isa_conflict { "-mips3 -mgp32 -32" "-mips32 -32" } 4000 isa32
142
isa_conflict { "-march=sb1 -mgp32 -32" "-mips32r2 -32" } sb1 isa32r2
143
isa_conflict { "-march=sb1 -32" "-mips64r2 -32" } sb1 isa64r2
145
regsize_conflict { "-mips4 -mgp64 -mabi=o64" "-mips2 -32" }
146
regsize_conflict { "-mips4 -mabi=o64" "-mips4 -mabi=32" }
147
regsize_conflict { "-mips4 -mabi=eabi -mgp32" "-mips4 -mabi=eabi -mgp64" }
148
regsize_conflict { "-march=vr5000 -mgp64 -mabi=o64" "-march=vr5000 -mgp32 -32" }
149
regsize_conflict { "-mips32 -32" "-mips64 -mabi=o64" }
150
regsize_conflict { "-mips32r2 -32" "-mips64 -mabi=o64" }
151
regsize_conflict { "-mips32r2 -32" "-mips64r2 -mabi=o64" }
153
good_combination { "-mips4 -mgp32 -32" "-mips2 -32" } { mips4 o32 }
154
good_combination { "-mips4 -mabi=32" "-mips2 -32" } { mips4 o32 }
155
good_combination { "-mips2 -32" "-mips4 -mabi=32" } { mips4 o32 }
156
good_combination { "-mips2 -mabi=eabi" "-mips4 -mabi=eabi -mgp32" } { mips4 eabi32 }
157
good_combination { "-mips2 -32" "-mips32 -32" "-mips32r2 -32" } { mips32r2 }
158
good_combination { "-mips1 -32" "-mips32r2 -32" "-mips32 -32" } { mips32r2 }
160
good_combination { "-march=vr4100 -32" "-march=vr4120 -32" } { 4120 }
161
good_combination { "-march=vr5400 -32" "-march=vr5500 -32" "-mips4 -32" } { 5500 }
162
good_combination { "-mips3 -32" "-mips4 -32" "-march=sb1 -32" "-mips5 -32" } { sb1 }
163
good_combination { "-mips1 -32" "-march=3900 -32" } { 3900 }
164
good_combination { "-mips3 -32" "-mips64r2 -32" "-mips64 -32" } { mips64r2 }
166
good_combination { "-march=vr4120 -mabi=32" "-mips3 -mabi=32" } { 4120 o32 }
167
good_combination { "-march=sb1 -mgp32 -32" "-march=4000 -mgp32 -32" } { sb1 o32 }
168
good_combination { "-mips32 -mabi=32" "-march=sb1 -mabi=32" } { sb1 o32 }
169
good_combination { "-mips64r2 -mabi=32" "-mips32 -mabi=32" } { mips64r2 o32 }
170
good_combination { "-mips5 -mabi=o64" "-mips64r2 -mabi=o64" } { mips64r2 o64 }