1 # Copyright
2003 Free Software Foundation
, Inc.
3 # This file is free software
; you can redistribute it and
/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation
; either version
2 of the License
, or
6 #
(at your option
) any later version.
8 # This
program is distributed in the hope that it will be useful
,
9 # but WITHOUT
ANY WARRANTY
; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License
for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this
program; if not
, write to the Free Software
15 # Foundation
, Inc.
, 59 Temple Place
- Suite
330, Boston
, MA
02111-1307, USA.
17 if {![istarget mips
*-*-*] ||
![is_elf_format
]} {
22 if {[istarget mips
*-*-irix6
*]} {
23 set ldemul
"-melf32bsmip"
24 } elseif
{[istarget mips
*el
-*-linux
*]} {
25 set ldemul
"-melf32ltsmip"
26 } elseif
{[istarget mips
*-*-linux
*]} {
27 set ldemul
"-melf32btsmip"
32 # Assemble jr.s using each of the
argument lists in ARGLIST.
Return the
33 # list of object files
on success and an empty list
on failure.
34 proc assemble_for_flags
{arglist
} {
35 global as srcdir subdir
40 foreach
args $arglist
{
41 set obj "tmpdir/mips-flags-${index}.o"
42 if {![ld_assemble $as
"$args $srcdir/$subdir/jr.s" $obj]} {
51 # Assemble a file using each
set of arguments in ARGLIST. Check that
52 # the objects can be linked together and that the readelf output
53 # includes each flag named in FLAGS.
54 proc good_combination
{arglist flags
} {
55 global
ld ldemul READELF
57 set finalobj
"tmpdir/mips-flags.o"
58 set testname
"MIPS compatible objects: $arglist"
59 set objs
[assemble_for_flags $arglist
]
63 } elseif
{![ld_simple_link
"$ld $ldemul" $finalobj "-r $objs"]} {
66 catch
"exec $READELF --headers $finalobj" output
67 if {![regexp
"Flags: *(\[^\n\]*)" $output full gotflags]} {
72 # GOTFLAGS is a list of flags separated by
", ".
73 #
Convert it to a tcl list.
74 regsub
-all
", " $gotflags "," gotflags
75 set gotflags
[split $gotflags
","]
78 if {[lsearch
-exact $gotflags $flag
] < 0} {
91 # Like good_combination
, but check that the objects can
't be linked
92 # together successfully and that the output includes MESSAGE.
93 proc bad_combination {arglist message} {
94 global link_output ld ldemul
96 set finalobj "tmpdir/mips-flags.o"
97 set testname "MIPS incompatible objects: $arglist"
98 set objs [assemble_for_flags $arglist]
102 } elseif {[ld_simple_link "$ld $ldemul" $finalobj "-r $objs"]
103 || [string first $message $link_output] < 0} {
110 # Routines to check for various kinds of incompatibility.
112 proc abi_conflict {arglist firstabi secondabi} {
113 bad_combination $arglist \
114 "linking $secondabi module with previous $firstabi modules"
117 proc isa_conflict {arglist firstisa secondisa} {
118 bad_combination $arglist \
119 "linking mips:$secondisa module with previous mips:$firstisa modules"
122 proc regsize_conflict {arglist} {
123 bad_combination $arglist \
124 "linking 32-bit code with 64-bit code"
127 abi_conflict { "-mabi=eabi -mgp32" "-mips4 -mabi=32" } EABI32 O32
128 abi_conflict { "-mips4 -mabi=o64" "-mips3 -mabi=eabi" } O64 EABI64
130 isa_conflict { "-march=vr5500 -32" "-march=sb1 -32" } 5500 sb1
131 isa_conflict { "-march=vr5400 -32" "-march=4120 -32" } 5400 4120
132 isa_conflict { "-march=r3900 -32" "-march=r6000 -32" } 3900 6000
133 isa_conflict { "-march=r4010 -32" "-march=r4650 -32" } 4010 4650
134 isa_conflict { "-mips3 -mgp32 -32" "-mips32 -32" } 4000 isa32
135 isa_conflict { "-march=sb1 -mgp32 -32" "-mips32r2 -32" } sb1 isa32r2
136 isa_conflict { "-march=sb1 -32" "-mips64r2 -32" } sb1 isa64r2
138 regsize_conflict { "-mips4 -mgp64 -mabi=o64" "-mips2 -32" }
139 regsize_conflict { "-mips4 -mabi=o64" "-mips4 -mabi=32" }
140 regsize_conflict { "-mips4 -mabi=eabi -mgp32" "-mips4 -mabi=eabi -mgp64" }
141 regsize_conflict { "-march=vr5000 -mgp64 -mabi=o64" "-march=vr5000 -mgp32 -32" }
142 regsize_conflict { "-mips32 -32" "-mips64 -mabi=o64" }
143 regsize_conflict { "-mips32r2 -32" "-mips64 -mabi=o64" }
144 regsize_conflict { "-mips32r2 -32" "-mips64r2 -mabi=o64" }
146 good_combination { "-mips4 -mgp32 -32" "-mips2 -32" } { mips4 o32 }
147 good_combination { "-mips4 -mabi=32" "-mips2 -32" } { mips4 o32 }
148 good_combination { "-mips2 -32" "-mips4 -mabi=32" } { mips4 o32 }
149 good_combination { "-mips2 -mabi=eabi" "-mips4 -mabi=eabi -mgp32" } { mips4 eabi32 }
150 good_combination { "-mips2 -32" "-mips32 -32" "-mips32r2 -32" } { mips32r2 }
151 good_combination { "-mips1 -32" "-mips32r2 -32" "-mips32 -32" } { mips32r2 }
153 good_combination { "-march=vr4100 -32" "-march=vr4120 -32" } { 4120 }
154 good_combination { "-march=vr5400 -32" "-march=vr5500 -32" "-mips4 -32" } { 5500 }
155 good_combination { "-mips3 -32" "-mips4 -32" "-march=sb1 -32" "-mips5 -32" } { sb1 }
156 good_combination { "-mips1 -32" "-march=3900 -32" } { 3900 }
157 good_combination { "-mips3 -32" "-mips64r2 -32" "-mips64 -32" } { mips64r2 }
159 good_combination { "-march=vr4120 -mabi=32" "-mips3 -mabi=32" } { 4120 o32 }
160 good_combination { "-march=sb1 -mgp32 -32" "-march=4000 -mgp32 -32" } { sb1 o32 }