| # Copyright 2003 Free Software Foundation, Inc. |
| # |
| # This file 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| |
| if {![istarget mips*-*-*] || ![is_elf_format]} { |
| return |
| } |
| |
| global ldemul |
| if {[istarget mips*-*-irix6*]} { |
| set ldemul "-melf32bsmip" |
| } elseif {[istarget mips*el-*-linux*]} { |
| set ldemul "-melf32ltsmip" |
| } elseif {[istarget mips*-*-linux*]} { |
| set ldemul "-melf32btsmip" |
| } else { |
| set ldemul "" |
| } |
| |
| # 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 output |
| # includes each flag named in FLAGS. |
| proc good_combination {arglist flags} { |
| global ld ldemul READELF |
| |
| set finalobj "tmpdir/mips-flags.o" |
| set testname "MIPS compatible objects: $arglist" |
| set objs [assemble_for_flags $arglist] |
| |
| if {$objs == ""} { |
| unresolved $testname |
| } elseif {![ld_simple_link "$ld $ldemul" $finalobj "-r $objs"]} { |
| fail $testname |
| } else { |
| catch "exec $READELF --headers $finalobj" output |
| if {![regexp "Flags: *(\[^\n\]*)" $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 $flag] < 0} { |
| set failed 1 |
| } |
| } |
| if {$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 $arglist] |
| |
| if {$objs == ""} { |
| unresolved $testname |
| } elseif {[ld_simple_link "$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 |
| |
| 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 } |