# Copyright (C) 2003-2020 Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
# MA 02110-1301, USA.
if {![istarget mips*-*-*] || ![is_elf_format]} {
return
}
if {[istarget mips*-*-irix6*]} {
set ldemul "-melf32bsmip"
} elseif {[istarget mips*el-*-linux*]} {
set ldemul "-melf32ltsmip"
} elseif {[istarget mips*-*-linux*]} {
set ldemul "-melf32btsmip"
} elseif {[istarget mips*el-*-*freebsd*]} {
set ldemul "-melf32ltsmip_fbsd"
} elseif {[istarget mips*-*-*freebsd*]} {
set ldemul "-melf32btsmip_fbsd"
} else {
set ldemul ""
}
# Check is ld supported 32bit emulations.
proc check_ld_support_32bit { } {
global ld
global echo
set ld_output [remote_exec host $ld "-V"]
if [string match "*elf32*" $ld_output] then {
return 1
} else {
return 0
}
}
# Check args is 32bit abis.
proc check_is_32bit_args {arg} {
if { [string match "*-32*" $arg]
|| [string match "*-mabi=32*" $arg]
|| [string match "*-mabi=o64*" $arg]
|| [string match "*-mgp32*" $arg] } {
return 1
} else {
return 0
}
}
# Assemble jr.s using each of the argument lists in ARGLIST. Return the
# list of object files on success and an empty list on failure.
proc assemble_for_flags {arglist} {
global as srcdir subdir
set objs {}
set index 1
foreach args $arglist {
set obj "tmpdir/mips-flags-${index}.o"
if {![ld_assemble $as "$args $srcdir/$subdir/jr.s" $obj]} {
return ""
}
lappend objs $obj
incr index
}
return $objs
}
# Assemble a file using each set of arguments in ARGLIST. Check that
# the objects can be linked together and that the `readelf -h' output
# includes each flag named in FLAGS. Additional one or more arguments
# request the addition of the `-A' option to `readelf' invocation. In
# this case check MIPS ABI Flags reported for the ISA to match the
# first of these arguments, the ISA Extension to match the second, and
# the ASEs listed are exactly the same as those listed in the third,
# passed as a TCL list.
proc good_combination {arglist flags args} {
global ld ldemul READELF
set finalobj "tmpdir/mips-flags.o"
set testname "MIPS compatible objects: $arglist"
set objs [assemble_for_flags $arglist]
foreach argsl $arglist {
if { [check_is_32bit_args $argsl] && ![check_ld_support_32bit] } {
unsupported $testname
return 0
}
}
if {$objs == ""} {
fail $testname
} elseif {![ld_link "$ld $ldemul" $finalobj "-r $objs"]} {
fail $testname
} else {
set A [expr {[llength $args] > 0} ? {"A"} : {""}]
set cmd "$READELF -h$A $finalobj"
send_log "$cmd\n"
set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]]]
set output [lindex $cmdret 1]
set cmdret [lindex $cmdret 0]
if {$cmdret != 0 \
|| ![regexp "Flags: *(\[^\n\r\]*)" $output full gotflags]} {
unresolved $testname
} else {
set failed 0
# GOTFLAGS is a list of flags separated by ", ".
# Convert it to a tcl list.
regsub -all ", " $gotflags "," gotflags
set gotflags [split $gotflags ","]
foreach flag $flags {
if {[lsearch -exact $gotflags $flag] < 0} {
# The mips*-*-irix* not use o32 flags.
if {[istarget mips*-*-irix*] && $flag == "o32"} {
set failed 0
} else {
set failed 1
}
}
}
set isa [string trim [lindex $args 0]]
if {$isa != ""
&& (![regexp "ISA: *(\[^\n\r\]*)" $output full gotisa]
|| ![string match $isa $gotisa])} {
set failed 1
}
set ext [string trim [lindex $args 1]]
if {$ext != ""
&& (![regexp "ISA Extension: *(\[^\n\r\]*)" \
$output full gotext]
|| ![string match $ext $gotext])} {
set failed 1
}
set ases [string trim [lindex $args 2]]
if {[llength $ases] > 0} {
if {![regexp "ASEs:\[\n\r\]+((?:\t\[^\n\r\]*\[\n\r\]+)*)" \
$output full gotases]} {
set failed 1
} else {
# GOTASES is a list of strings separated by tab and
# line separator characters. Convert it to a TCL list.
regsub -all "\[\n\r\t\]+" $gotases "\n" gotases
set gotases [split [string trim $gotases] "\n"]
foreach ase $ases {
set aseidx [lsearch -exact $gotases $ase]
if {$aseidx >= 0} {
set gotases [lreplace $gotases $aseidx $aseidx]
} else {
set failed 1
}
}
if {[llength $gotases] > 0} {
set failed 1
}
}
}
if {$failed} {
fail $testname
} else {
pass $testname
}
}
}
}
# Like good_combination, but check that the objects can't be linked
# together successfully and that the output includes MESSAGE.
proc bad_combination {arglist message} {
global link_output ld ldemul
set finalobj "tmpdir/mips-flags.o"
set testname "MIPS incompatible objects: $arglist"
set objs [assemble_for_flags $arglist]
foreach argsl $arglist {
if { [check_is_32bit_args $argsl] && ![check_ld_support_32bit] } {
unsupported $testname
return 0
}
}
if {$objs == ""} {
fail $testname
} elseif {[ld_link "$ld $ldemul" $finalobj "-r $objs"]
|| [string first $message $link_output] < 0} {
fail $testname
} else {
pass $testname
}
}
# Routines to check for various kinds of incompatibility.
proc abi_conflict {arglist firstabi secondabi} {
bad_combination $arglist \
"linking $secondabi module with previous $firstabi modules"
}
proc isa_conflict {arglist firstisa secondisa} {
bad_combination $arglist \
"linking mips:$secondisa module with previous mips:$firstisa modules"
}
proc regsize_conflict {arglist} {
bad_combination $arglist \
"linking 32-bit code with 64-bit code"
}
abi_conflict { "-mabi=eabi -mgp32" "-mips4 -mabi=32" } EABI32 O32
abi_conflict { "-mips4 -mabi=o64" "-mips3 -mabi=eabi" } O64 EABI64
isa_conflict { "-march=vr5500 -32" "-march=sb1 -32" } 5500 sb1
isa_conflict { "-march=vr5400 -32" "-march=4120 -32" } 5400 4120
isa_conflict { "-march=r3900 -32" "-march=r6000 -32" } 3900 6000
isa_conflict { "-march=r4010 -32" "-march=r4650 -32" } 4010 4650
isa_conflict { "-mips3 -mgp32 -32" "-mips32 -32" } 4000 isa32
isa_conflict { "-march=sb1 -mgp32 -32" "-mips32r2 -32" } sb1 isa32r2
isa_conflict { "-march=sb1 -32" "-mips64r2 -32" } sb1 isa64r2
isa_conflict { "-march=vr4100 -32" "-march=r10000 -32" } 4100 8000
isa_conflict { "-march=r5900 -32" "-march=vr4111 -32" } 5900 4111
isa_conflict { "-march=loongson2e -32" "-march=loongson2f -32" } loongson_2e loongson_2f
isa_conflict { "-march=gs464 -32" "-march=loongson2f -32" } gs464 loongson_2f
isa_conflict { "-march=interaptiv-mr2 -32" \
"-march=r4010 -32" } interaptiv-mr2 4010
isa_conflict { "-march=interaptiv-mr2 -mnan=2008 -mfp64 -32" \
"-mips32r6 -32" } interaptiv-mr2 isa32r6
isa_conflict { "-march=interaptiv-mr2 -32" \
"-mips3 -32" } interaptiv-mr2 4000
isa_conflict { "-march=interaptiv-mr2 -32" \
"-mips64r2 -32" } interaptiv-mr2 isa64r2
isa_conflict { "-march=interaptiv-mr2 -32" \
"-march=octeon -32" } interaptiv-mr2 octeon
regsize_conflict { "-mips4 -mgp64 -mabi=o64" "-mips2 -32" }
regsize_conflict { "-mips4 -mabi=o64" "-mips4 -mabi=32" }
regsize_conflict { "-mips4 -mabi=eabi -mgp32" "-mips4 -mabi=eabi -mgp64" }
regsize_conflict { "-march=vr5000 -mgp64 -mabi=o64" "-march=vr5000 -mgp32 -32" }
regsize_conflict { "-mips32 -32" "-mips64 -mabi=o64" }
regsize_conflict { "-mips32r2 -32" "-mips64 -mabi=o64" }
regsize_conflict { "-mips32r2 -32" "-mips64r2 -mabi=o64" }
good_combination { "-mips4 -mgp32 -32" "-mips2 -32" } { mips4 o32 }
good_combination { "-mips4 -mabi=32" "-mips2 -32" } { mips4 o32 }
good_combination { "-mips2 -32" "-mips4 -mabi=32" } { mips4 o32 }
good_combination { "-mips2 -mabi=eabi" "-mips4 -mabi=eabi -mgp32" } { mips4 eabi32 }
good_combination { "-mips2 -32" "-mips32 -32" "-mips32r2 -32" } { mips32r2 }
good_combination { "-mips1 -32" "-mips32r2 -32" "-mips32 -32" } { mips32r2 }
good_combination { "-march=vr4100 -32" "-march=vr4120 -32" } { 4120 }
good_combination { "-march=vr5400 -32" "-march=vr5500 -32" "-mips4 -32" } { 5500 }
good_combination { "-mips3 -32" "-mips4 -32" "-march=sb1 -32" "-mips5 -32" } { sb1 }
good_combination { "-mips1 -32" "-march=3900 -32" } { 3900 }
good_combination { "-mips3 -32" "-mips64r2 -32" " -mips64 -32" } { mips64r2 }
good_combination { "-march=vr4120 -mabi=32" "-mips3 -mabi=32" } { 4120 o32 }
good_combination { "-march=sb1 -mgp32 -32" "-march=4000 -mgp32 -32" } { sb1 o32 }
good_combination { "-mips32 -mabi=32" "-march=sb1 -mabi=32" } { sb1 o32 }
good_combination { "-mips64r2 -mabi=32" "-mips32 -mabi=32" } { mips64r2 o32 }
good_combination { "-mips5 -mabi=o64" "-mips64r2 -mabi=o64" } { mips64r2 o64 }
good_combination { "-march=interaptiv-mr2 -32" "-mips1 -32" } \
{ mips32r2 interaptiv-mr2 } \
MIPS32r3 "Imagination interAptiv MR2" \
{ "DSP ASE" "Enhanced VA Scheme" "MT ASE" }
good_combination { "-march=interaptiv-mr2 -32" "-mips32r2 -32" } \
{ mips32r2 interaptiv-mr2 } \
MIPS32r3 "Imagination interAptiv MR2" \
{ "DSP ASE" "Enhanced VA Scheme" "MT ASE" }
good_combination { "-march=interaptiv-mr2 -32" "-march=interaptiv -32" } \
{ mips32r2 interaptiv-mr2 } \
MIPS32r3 "Imagination interAptiv MR2" \
{ "DSP ASE" "Enhanced VA Scheme" "MT ASE" }
good_combination { "-march=interaptiv-mr2 -32" "-mips32r3 -32" } \
{ mips32r2 interaptiv-mr2 } \
MIPS32r3 "Imagination interAptiv MR2" \
{ "DSP ASE" "Enhanced VA Scheme" "MT ASE" }
good_combination { "-march=interaptiv-mr2 -32" "-mips32r3 -mips16 -32" } \
{ mips32r2 interaptiv-mr2 } \
MIPS32r3 "Imagination interAptiv MR2" \
{ "DSP ASE" "Enhanced VA Scheme" "MT ASE" "MIPS16 ASE" }
good_combination { "-march=interaptiv-mr2 -mips16 -32" "-mips32r3 -32" } \
{ mips32r2 interaptiv-mr2 } \
MIPS32r3 "Imagination interAptiv MR2" \
{ "DSP ASE" "Enhanced VA Scheme" "MT ASE" \
"MIPS16 ASE" "MIPS16e2 ASE" }
good_combination { "-march=interaptiv-mr2 -32" "-mips32r5 -32" } \
{ mips32r2 interaptiv-mr2 } \
MIPS32r5 "Imagination interAptiv MR2" \
{ "DSP ASE" "Enhanced VA Scheme" "MT ASE" }
good_combination { "-march=interaptiv-mr2 -32" "-march=m5100 -32" } \
{ mips32r2 interaptiv-mr2 } \
MIPS32r5 "Imagination interAptiv MR2" \
{ "DSP ASE" "Enhanced VA Scheme" \
"MCU (MicroController) ASE" "MT ASE" }
good_combination { "-march=gs464 -32" "-march=gs464e -32" } \
{ gs464e o32 } \
MIPS64r2 "None" \
{ "Loongson MMI ASE" "Loongson CAM ASE" "Loongson EXT ASE" "Loongson EXT2 ASE" }
good_combination { "-march=gs264e -32" "-march=gs464e -32" } \
{ gs264e o32 } \
MIPS64r2 "None" \
{ "Loongson MMI ASE" "Loongson CAM ASE" "Loongson EXT ASE" "Loongson EXT2 ASE" }