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f96b4a7b | 1 | # Copyright 2003, 2007 Free Software Foundation, Inc. |
64543e1a | 2 | # |
f96b4a7b NC |
3 | # This file is part of the GNU Binutils. |
4 | # | |
5 | # This program is free software; you can redistribute it and/or modify | |
64543e1a | 6 | # it under the terms of the GNU General Public License as published by |
f96b4a7b | 7 | # the Free Software Foundation; either version 3 of the License, or |
64543e1a RS |
8 | # (at your option) any later version. |
9 | # | |
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. | |
14 | # | |
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 | |
f96b4a7b NC |
17 | # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
18 | # MA 02110-1301, USA. | |
64543e1a RS |
19 | |
20 | if {![istarget mips*-*-*] || ![is_elf_format]} { | |
21 | return | |
22 | } | |
23 | ||
697380b3 AO |
24 | global ldemul |
25 | if {[istarget mips*-*-irix6*]} { | |
0c29b4cc | 26 | set ldemul "-melf32bsmip" |
697380b3 AO |
27 | } elseif {[istarget mips*el-*-linux*]} { |
28 | set ldemul "-melf32ltsmip" | |
29 | } elseif {[istarget mips*-*-linux*]} { | |
30 | set ldemul "-melf32btsmip" | |
31 | } else { | |
32 | set ldemul "" | |
33 | } | |
34 | ||
64543e1a RS |
35 | # Assemble jr.s using each of the argument lists in ARGLIST. Return the |
36 | # list of object files on success and an empty list on failure. | |
37 | proc assemble_for_flags {arglist} { | |
38 | global as srcdir subdir | |
39 | ||
40 | set objs {} | |
41 | set index 1 | |
42 | ||
43 | foreach args $arglist { | |
44 | set obj "tmpdir/mips-flags-${index}.o" | |
45 | if {![ld_assemble $as "$args $srcdir/$subdir/jr.s" $obj]} { | |
46 | return "" | |
47 | } | |
48 | lappend objs $obj | |
49 | incr index | |
50 | } | |
51 | return $objs | |
52 | } | |
53 | ||
54 | # Assemble a file using each set of arguments in ARGLIST. Check that | |
55 | # the objects can be linked together and that the readelf output | |
56 | # includes each flag named in FLAGS. | |
57 | proc good_combination {arglist flags} { | |
697380b3 | 58 | global ld ldemul READELF |
64543e1a RS |
59 | |
60 | set finalobj "tmpdir/mips-flags.o" | |
61 | set testname "MIPS compatible objects: $arglist" | |
62 | set objs [assemble_for_flags $arglist] | |
63 | ||
64 | if {$objs == ""} { | |
65 | unresolved $testname | |
697380b3 | 66 | } elseif {![ld_simple_link "$ld $ldemul" $finalobj "-r $objs"]} { |
64543e1a RS |
67 | fail $testname |
68 | } else { | |
69 | catch "exec $READELF --headers $finalobj" output | |
70 | if {![regexp "Flags: *(\[^\n\]*)" $output full gotflags]} { | |
71 | unresolved $testname | |
72 | } else { | |
73 | set failed 0 | |
74 | ||
75 | # GOTFLAGS is a list of flags separated by ", ". | |
76 | # Convert it to a tcl list. | |
77 | regsub -all ", " $gotflags "," gotflags | |
78 | set gotflags [split $gotflags ","] | |
79 | ||
80 | foreach flag $flags { | |
81 | if {[lsearch -exact $gotflags $flag] < 0} { | |
82 | set failed 1 | |
83 | } | |
84 | } | |
85 | if {$failed} { | |
86 | fail $testname | |
87 | } else { | |
88 | pass $testname | |
89 | } | |
90 | } | |
91 | } | |
92 | } | |
93 | ||
94 | # Like good_combination, but check that the objects can't be linked | |
95 | # together successfully and that the output includes MESSAGE. | |
96 | proc bad_combination {arglist message} { | |
697380b3 | 97 | global link_output ld ldemul |
64543e1a RS |
98 | |
99 | set finalobj "tmpdir/mips-flags.o" | |
100 | set testname "MIPS incompatible objects: $arglist" | |
101 | set objs [assemble_for_flags $arglist] | |
102 | ||
103 | if {$objs == ""} { | |
104 | unresolved $testname | |
697380b3 | 105 | } elseif {[ld_simple_link "$ld $ldemul" $finalobj "-r $objs"] |
64543e1a RS |
106 | || [string first $message $link_output] < 0} { |
107 | fail $testname | |
108 | } else { | |
109 | pass $testname | |
110 | } | |
111 | } | |
112 | ||
113 | # Routines to check for various kinds of incompatibility. | |
114 | ||
115 | proc abi_conflict {arglist firstabi secondabi} { | |
116 | bad_combination $arglist \ | |
117 | "linking $secondabi module with previous $firstabi modules" | |
118 | } | |
119 | ||
120 | proc isa_conflict {arglist firstisa secondisa} { | |
121 | bad_combination $arglist \ | |
122 | "linking mips:$secondisa module with previous mips:$firstisa modules" | |
123 | } | |
124 | ||
125 | proc regsize_conflict {arglist} { | |
126 | bad_combination $arglist \ | |
127 | "linking 32-bit code with 64-bit code" | |
128 | } | |
129 | ||
130 | abi_conflict { "-mabi=eabi -mgp32" "-mips4 -mabi=32" } EABI32 O32 | |
131 | abi_conflict { "-mips4 -mabi=o64" "-mips3 -mabi=eabi" } O64 EABI64 | |
132 | ||
697380b3 AO |
133 | isa_conflict { "-march=vr5500 -32" "-march=sb1 -32" } 5500 sb1 |
134 | isa_conflict { "-march=vr5400 -32" "-march=4120 -32" } 5400 4120 | |
135 | isa_conflict { "-march=r3900 -32" "-march=r6000 -32" } 3900 6000 | |
136 | isa_conflict { "-march=r4010 -32" "-march=r4650 -32" } 4010 4650 | |
137 | isa_conflict { "-mips3 -mgp32 -32" "-mips32 -32" } 4000 isa32 | |
138 | isa_conflict { "-march=sb1 -mgp32 -32" "-mips32r2 -32" } sb1 isa32r2 | |
5f74bc13 | 139 | isa_conflict { "-march=sb1 -32" "-mips64r2 -32" } sb1 isa64r2 |
64543e1a | 140 | |
697380b3 | 141 | regsize_conflict { "-mips4 -mgp64 -mabi=o64" "-mips2 -32" } |
64543e1a | 142 | regsize_conflict { "-mips4 -mabi=o64" "-mips4 -mabi=32" } |
1efcd1fd | 143 | regsize_conflict { "-mips4 -mabi=eabi -mgp32" "-mips4 -mabi=eabi -mgp64" } |
697380b3 AO |
144 | regsize_conflict { "-march=vr5000 -mgp64 -mabi=o64" "-march=vr5000 -mgp32 -32" } |
145 | regsize_conflict { "-mips32 -32" "-mips64 -mabi=o64" } | |
146 | regsize_conflict { "-mips32r2 -32" "-mips64 -mabi=o64" } | |
5f74bc13 | 147 | regsize_conflict { "-mips32r2 -32" "-mips64r2 -mabi=o64" } |
697380b3 AO |
148 | |
149 | good_combination { "-mips4 -mgp32 -32" "-mips2 -32" } { mips4 o32 } | |
150 | good_combination { "-mips4 -mabi=32" "-mips2 -32" } { mips4 o32 } | |
151 | good_combination { "-mips2 -32" "-mips4 -mabi=32" } { mips4 o32 } | |
152 | good_combination { "-mips2 -mabi=eabi" "-mips4 -mabi=eabi -mgp32" } { mips4 eabi32 } | |
153 | good_combination { "-mips2 -32" "-mips32 -32" "-mips32r2 -32" } { mips32r2 } | |
154 | good_combination { "-mips1 -32" "-mips32r2 -32" "-mips32 -32" } { mips32r2 } | |
155 | ||
156 | good_combination { "-march=vr4100 -32" "-march=vr4120 -32" } { 4120 } | |
157 | good_combination { "-march=vr5400 -32" "-march=vr5500 -32" "-mips4 -32" } { 5500 } | |
158 | good_combination { "-mips3 -32" "-mips4 -32" "-march=sb1 -32" "-mips5 -32" } { sb1 } | |
159 | good_combination { "-mips1 -32" "-march=3900 -32" } { 3900 } | |
5f74bc13 | 160 | good_combination { "-mips3 -32" "-mips64r2 -32" "-mips64 -32" } { mips64r2 } |
64543e1a RS |
161 | |
162 | good_combination { "-march=vr4120 -mabi=32" "-mips3 -mabi=32" } { 4120 o32 } | |
697380b3 | 163 | good_combination { "-march=sb1 -mgp32 -32" "-march=4000 -mgp32 -32" } { sb1 o32 } |
c5211a54 RS |
164 | good_combination { "-mips32 -mabi=32" "-march=sb1 -mabi=32" } { sb1 o32 } |
165 | good_combination { "-mips64r2 -mabi=32" "-mips32 -mabi=32" } { mips64r2 o32 } | |
166 | good_combination { "-mips5 -mabi=o64" "-mips64r2 -mabi=o64" } { mips64r2 o64 } |