1 # Copyright (C) 2003-2019 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 # Check is ld supported 32bit emulations.
40 proc check_ld_support_32bit { } {
44 set ld_output [remote_exec host $ld "-V"]
45 if [string match "*elf32*" $ld_output] then {
52 # Check args is 32bit abis.
53 proc check_is_32bit_args {arg} {
55 if { [string match "*-32*" $arg]
56 || [string match "*-mabi=32*" $arg]
57 || [string match "*-mabi=o64*" $arg]
58 || [string match "*-mgp32*" $arg] } {
65 # Assemble jr.s using each of the argument lists in ARGLIST. Return the
66 # list of object files on success and an empty list on failure.
67 proc assemble_for_flags {arglist} {
68 global as srcdir subdir
73 foreach args $arglist {
74 set obj "tmpdir/mips-flags-${index}.o"
75 if {![ld_assemble $as "$args $srcdir/$subdir/jr.s" $obj]} {
84 # Assemble a file using each set of arguments in ARGLIST. Check that
85 # the objects can be linked together and that the `readelf -h' output
86 # includes each flag named in FLAGS. Additional one or more arguments
87 # request the addition of the `-A' option to `readelf' invocation. In
88 # this case check MIPS ABI Flags reported for the ISA to match the
89 # first of these arguments, the ISA Extension to match the second, and
90 # the ASEs listed are exactly the same as those listed in the third,
91 # passed as a TCL list.
92 proc good_combination {arglist flags args} {
93 global ld ldemul READELF
95 set finalobj "tmpdir/mips-flags.o"
96 set testname "MIPS compatible objects: $arglist"
97 set objs [assemble_for_flags $arglist]
99 foreach argsl $arglist {
100 if { [check_is_32bit_args $argsl] && ![check_ld_support_32bit] } {
101 unsupported $testname
108 } elseif {![ld_link "$ld $ldemul" $finalobj "-r $objs"]} {
111 set A [expr {[llength $args] > 0} ? {"A"} : {""}]
112 set cmd "$READELF -h$A $finalobj"
114 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]]]
115 set output [lindex $cmdret 1]
116 set cmdret [lindex $cmdret 0]
118 || ![regexp "Flags: *(\[^\n\r\]*)" $output full gotflags]} {
123 # GOTFLAGS is a list of flags separated by ", ".
124 # Convert it to a tcl list.
125 regsub -all ", " $gotflags "," gotflags
126 set gotflags [split $gotflags ","]
128 foreach flag $flags {
129 if {[lsearch -exact $gotflags $flag] < 0} {
130 # The mips*-*-irix* not use o32 flags.
131 if {[istarget mips*-*-irix*] && $flag == "o32"} {
139 set isa [string trim [lindex $args 0]]
141 && (![regexp "ISA: *(\[^\n\r\]*)" $output full gotisa]
142 || ![string match $isa $gotisa])} {
146 set ext [string trim [lindex $args 1]]
148 && (![regexp "ISA Extension: *(\[^\n\r\]*)" \
150 || ![string match $ext $gotext])} {
154 set ases [string trim [lindex $args 2]]
155 if {[llength $ases] > 0} {
156 if {![regexp "ASEs:\[\n\r\]+((?:\t\[^\n\r\]*\[\n\r\]+)*)" \
157 $output full gotases]} {
160 # GOTASES is a list of strings separated by tab and
161 # line separator characters. Convert it to a TCL list.
162 regsub -all "\[\n\r\t\]+" $gotases "\n" gotases
163 set gotases [split [string trim $gotases] "\n"]
166 set aseidx [lsearch -exact $gotases $ase]
168 set gotases [lreplace $gotases $aseidx $aseidx]
173 if {[llength $gotases] > 0} {
188 # Like good_combination, but check that the objects can't be linked
189 # together successfully and that the output includes MESSAGE.
190 proc bad_combination {arglist message} {
191 global link_output ld ldemul
193 set finalobj "tmpdir/mips-flags.o"
194 set testname "MIPS incompatible objects: $arglist"
195 set objs [assemble_for_flags $arglist]
197 foreach argsl $arglist {
198 if { [check_is_32bit_args $argsl] && ![check_ld_support_32bit] } {
199 unsupported $testname
206 } elseif {[ld_link "$ld $ldemul" $finalobj "-r $objs"]
207 || [string first $message $link_output] < 0} {
214 # Routines to check for various kinds of incompatibility.
216 proc abi_conflict {arglist firstabi secondabi} {
217 bad_combination $arglist \
218 "linking $secondabi module with previous $firstabi modules"
221 proc isa_conflict {arglist firstisa secondisa} {
222 bad_combination $arglist \
223 "linking mips:$secondisa module with previous mips:$firstisa modules"
226 proc regsize_conflict {arglist} {
227 bad_combination $arglist \
228 "linking 32-bit code with 64-bit code"
231 abi_conflict { "-mabi=eabi -mgp32" "-mips4 -mabi=32" } EABI32 O32
232 abi_conflict { "-mips4 -mabi=o64" "-mips3 -mabi=eabi" } O64 EABI64
234 isa_conflict { "-march=vr5500 -32" "-march=sb1 -32" } 5500 sb1
235 isa_conflict { "-march=vr5400 -32" "-march=4120 -32" } 5400 4120
236 isa_conflict { "-march=r3900 -32" "-march=r6000 -32" } 3900 6000
237 isa_conflict { "-march=r4010 -32" "-march=r4650 -32" } 4010 4650
238 isa_conflict { "-mips3 -mgp32 -32" "-mips32 -32" } 4000 isa32
239 isa_conflict { "-march=sb1 -mgp32 -32" "-mips32r2 -32" } sb1 isa32r2
240 isa_conflict { "-march=sb1 -32" "-mips64r2 -32" } sb1 isa64r2
242 isa_conflict { "-march=vr4100 -32" "-march=r10000 -32" } 4100 8000
243 isa_conflict { "-march=r5900 -32" "-march=vr4111 -32" } 5900 4111
244 isa_conflict { "-march=loongson2e -32" "-march=loongson2f -32" } loongson_2e loongson_2f
245 isa_conflict { "-march=gs464 -32" "-march=loongson2f -32" } gs464 loongson_2f
247 isa_conflict { "-march=interaptiv-mr2 -32" \
248 "-march=r4010 -32" } interaptiv-mr2 4010
249 isa_conflict { "-march=interaptiv-mr2 -mnan=2008 -mfp64 -32" \
250 "-mips32r6 -32" } interaptiv-mr2 isa32r6
251 isa_conflict { "-march=interaptiv-mr2 -32" \
252 "-mips3 -32" } interaptiv-mr2 4000
253 isa_conflict { "-march=interaptiv-mr2 -32" \
254 "-mips64r2 -32" } interaptiv-mr2 isa64r2
255 isa_conflict { "-march=interaptiv-mr2 -32" \
256 "-march=octeon -32" } interaptiv-mr2 octeon
258 regsize_conflict { "-mips4 -mgp64 -mabi=o64" "-mips2 -32" }
259 regsize_conflict { "-mips4 -mabi=o64" "-mips4 -mabi=32" }
260 regsize_conflict { "-mips4 -mabi=eabi -mgp32" "-mips4 -mabi=eabi -mgp64" }
261 regsize_conflict { "-march=vr5000 -mgp64 -mabi=o64" "-march=vr5000 -mgp32 -32" }
262 regsize_conflict { "-mips32 -32" "-mips64 -mabi=o64" }
263 regsize_conflict { "-mips32r2 -32" "-mips64 -mabi=o64" }
264 regsize_conflict { "-mips32r2 -32" "-mips64r2 -mabi=o64" }
266 good_combination { "-mips4 -mgp32 -32" "-mips2 -32" } { mips4 o32 }
267 good_combination { "-mips4 -mabi=32" "-mips2 -32" } { mips4 o32 }
268 good_combination { "-mips2 -32" "-mips4 -mabi=32" } { mips4 o32 }
269 good_combination { "-mips2 -mabi=eabi" "-mips4 -mabi=eabi -mgp32" } { mips4 eabi32 }
270 good_combination { "-mips2 -32" "-mips32 -32" "-mips32r2 -32" } { mips32r2 }
271 good_combination { "-mips1 -32" "-mips32r2 -32" "-mips32 -32" } { mips32r2 }
273 good_combination { "-march=vr4100 -32" "-march=vr4120 -32" } { 4120 }
274 good_combination { "-march=vr5400 -32" "-march=vr5500 -32" "-mips4 -32" } { 5500 }
275 good_combination { "-mips3 -32" "-mips4 -32" "-march=sb1 -32" "-mips5 -32" } { sb1 }
276 good_combination { "-mips1 -32" "-march=3900 -32" } { 3900 }
277 good_combination { "-mips3 -32" "-mips64r2 -32" " -mips64 -32" } { mips64r2 }
279 good_combination { "-march=vr4120 -mabi=32" "-mips3 -mabi=32" } { 4120 o32 }
280 good_combination { "-march=sb1 -mgp32 -32" "-march=4000 -mgp32 -32" } { sb1 o32 }
281 good_combination { "-mips32 -mabi=32" "-march=sb1 -mabi=32" } { sb1 o32 }
282 good_combination { "-mips64r2 -mabi=32" "-mips32 -mabi=32" } { mips64r2 o32 }
283 good_combination { "-mips5 -mabi=o64" "-mips64r2 -mabi=o64" } { mips64r2 o64 }
285 good_combination { "-march=interaptiv-mr2 -32" "-mips1 -32" } \
286 { mips32r2 interaptiv-mr2 } \
287 MIPS32r3 "Imagination interAptiv MR2" \
288 { "DSP ASE" "Enhanced VA Scheme" "MT ASE" }
289 good_combination { "-march=interaptiv-mr2 -32" "-mips32r2 -32" } \
290 { mips32r2 interaptiv-mr2 } \
291 MIPS32r3 "Imagination interAptiv MR2" \
292 { "DSP ASE" "Enhanced VA Scheme" "MT ASE" }
293 good_combination { "-march=interaptiv-mr2 -32" "-march=interaptiv -32" } \
294 { mips32r2 interaptiv-mr2 } \
295 MIPS32r3 "Imagination interAptiv MR2" \
296 { "DSP ASE" "Enhanced VA Scheme" "MT ASE" }
297 good_combination { "-march=interaptiv-mr2 -32" "-mips32r3 -32" } \
298 { mips32r2 interaptiv-mr2 } \
299 MIPS32r3 "Imagination interAptiv MR2" \
300 { "DSP ASE" "Enhanced VA Scheme" "MT ASE" }
301 good_combination { "-march=interaptiv-mr2 -32" "-mips32r3 -mips16 -32" } \
302 { mips32r2 interaptiv-mr2 } \
303 MIPS32r3 "Imagination interAptiv MR2" \
304 { "DSP ASE" "Enhanced VA Scheme" "MT ASE" "MIPS16 ASE" }
305 good_combination { "-march=interaptiv-mr2 -mips16 -32" "-mips32r3 -32" } \
306 { mips32r2 interaptiv-mr2 } \
307 MIPS32r3 "Imagination interAptiv MR2" \
308 { "DSP ASE" "Enhanced VA Scheme" "MT ASE" \
309 "MIPS16 ASE" "MIPS16e2 ASE" }
310 good_combination { "-march=interaptiv-mr2 -32" "-mips32r5 -32" } \
311 { mips32r2 interaptiv-mr2 } \
312 MIPS32r5 "Imagination interAptiv MR2" \
313 { "DSP ASE" "Enhanced VA Scheme" "MT ASE" }
314 good_combination { "-march=interaptiv-mr2 -32" "-march=m5100 -32" } \
315 { mips32r2 interaptiv-mr2 } \
316 MIPS32r5 "Imagination interAptiv MR2" \
317 { "DSP ASE" "Enhanced VA Scheme" \
318 "MCU (MicroController) ASE" "MT ASE" }
320 good_combination { "-march=gs464 -32" "-march=gs464e -32" } \
323 { "Loongson MMI ASE" "Loongson CAM ASE" "Loongson EXT ASE" "Loongson EXT2 ASE" }
324 good_combination { "-march=gs264e -32" "-march=gs464e -32" } \
327 { "Loongson MMI ASE" "Loongson CAM ASE" "Loongson EXT ASE" "Loongson EXT2 ASE" }