1# Test NOCROSSREFS in a linker script. 2# By Ian Lance Taylor, Cygnus Support. 3# Copyright (C) 2000-2016 Free Software Foundation, Inc. 4# 5# This file is part of the GNU Binutils. 6# 7# This program is free software; you can redistribute it and/or modify 8# it under the terms of the GNU General Public License as published by 9# the Free Software Foundation; either version 3 of the License, or 10# (at your option) any later version. 11# 12# This program is distributed in the hope that it will be useful, 13# but WITHOUT ANY WARRANTY; without even the implied warranty of 14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15# GNU General Public License for more details. 16# 17# You should have received a copy of the GNU General Public License 18# along with this program; if not, write to the Free Software 19# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 20# MA 02110-1301, USA. 21 22set test1 "NOCROSSREFS 1" 23set test2 "NOCROSSREFS 2" 24set test3 "NOCROSSREFS 3" 25set test4 "NOCROSSREFS_TO 1" 26set test5 "NOCROSSREFS_TO 2" 27set test6 "NOCROSSREFS_TO 3" 28set test7 "NOCROSSREFS_TO 4" 29 30if { ![is_remote host] && [which $CC] == 0 } { 31 untested $test1 32 untested $test2 33 untested $test3 34 untested $test4 35 untested $test5 36 untested $test6 37 untested $test7 38 return 39} 40 41global CFLAGS 42set old_CFLAGS "$CFLAGS" 43 44# Pass -fplt to CC since -fno-plt doesn't work with NOCROSSREFS tests. 45global PLT_CFLAGS 46set old_CC "$CC" 47set CC "$CC $PLT_CFLAGS" 48 49# Xtensa targets currently default to putting literal values in a separate 50# section and that requires linker script support, so put literals in text. 51if [istarget xtensa*-*-*] { 52 set CFLAGS "$CFLAGS -mtext-section-literals" 53} 54 55# Prevent the use of the MeP's small data area which references a symbol 56# called __sdabase which will not be defined by our test linker scripts. 57if [istarget mep*-*-elf] { 58 set CFLAGS "-mtiny=0" 59} 60 61# The .dsbt section and __c6xabi_DSBT_BASE are not defined in our test 62# linker scripts. 63if [istarget tic6x*-*-*] { 64 set CFLAGS "-mno-dsbt -msdata=none" 65} 66 67if { ![ld_compile $CC "$srcdir/$subdir/cross1.c" tmpdir/cross1.o] \ 68 || ![ld_compile $CC "$srcdir/$subdir/cross2.c" tmpdir/cross2.o] } { 69 unresolved $test1 70 unresolved $test2 71 set CFLAGS "$old_CFLAGS" 72 set CC "$old_CC" 73 return 74} 75 76set flags [big_or_little_endian] 77 78if [istarget sh64*-*-elf] { 79 # This is what gcc passes to ld by default. 80 set flags "-mshelf32" 81} 82 83# arc-elf32 requires the symbol __SDATA_BEGIN__ to always be present. 84if [istarget arc*-*-elf32] { 85 set flags "$flags --defsym=__SDATA_BEGIN__=0" 86} 87 88# IA64 has both ordered and unordered sections in an input file. 89setup_xfail ia64-*-* 90 91set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross1 -T $srcdir/$subdir/cross1.t tmpdir/cross1.o tmpdir/cross2.o"] 92 93set exec_output [prune_warnings $exec_output] 94 95regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output 96 97if [string match "" $exec_output] then { 98 fail $test1 99} else { 100 verbose -log "$exec_output" 101 if [regexp "prohibited cross reference from .* to `.*foo' in" $exec_output] { 102 pass $test1 103 } else { 104 fail $test1 105 } 106} 107 108# Check cross references within a single object. 109 110if { ![ld_compile $CC "$srcdir/$subdir/cross3.c" tmpdir/cross3.o] } { 111 unresolved $test2 112 set CFLAGS "$old_CFLAGS" 113 set CC "$old_CC" 114 return 115} 116 117set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross2 -T $srcdir/$subdir/cross2.t tmpdir/cross3.o"] 118set exec_output [prune_warnings $exec_output] 119 120regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output 121 122if [string match "" $exec_output] then { 123 fail $test2 124} else { 125 verbose -log "$exec_output" 126 if [regexp "prohibited cross reference from .* to `.*' in" $exec_output] { 127 pass $test2 128 } else { 129 fail $test2 130 } 131} 132 133# Check cross references for ld -r 134 135if { ![ld_compile $CC "$srcdir/$subdir/cross4.c" tmpdir/cross4.o] } { 136 unresolved $test3 137 set CFLAGS "$old_CFLAGS" 138 set CC "$old_CC" 139 return 140} 141 142if ![ld_relocate $ld tmpdir/cross3-partial.o "tmpdir/cross1.o tmpdir/cross4.o"] { 143 unresolved $test3 144 set CFLAGS "$old_CFLAGS" 145 set CC "$old_CC" 146 return 147} 148 149set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross3 -T $srcdir/$subdir/cross3.t tmpdir/cross3-partial.o tmpdir/cross2.o"] 150 151set exec_output [prune_warnings $exec_output] 152 153regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output 154 155if [string match "" $exec_output] then { 156 pass $test3 157} else { 158 verbose -log "$exec_output" 159 fail $test3 160} 161 162set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross4 -T $srcdir/$subdir/cross4.t tmpdir/cross4.o"] 163set exec_output [prune_warnings $exec_output] 164 165regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output 166 167if [string match "" $exec_output] then { 168 pass $test4 169} else { 170 verbose -log "$exec_output" 171 fail $test4 172} 173 174set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross5 -T $srcdir/$subdir/cross5.t tmpdir/cross4.o"] 175set exec_output [prune_warnings $exec_output] 176 177regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output 178 179if [string match "" $exec_output] then { 180 fail $test5 181} else { 182 verbose -log "$exec_output" 183 if [regexp "prohibited cross reference from .* to `.*' in" $exec_output] { 184 pass $test5 185 } else { 186 fail $test5 187 } 188} 189 190set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross6 -T $srcdir/$subdir/cross6.t tmpdir/cross3.o"] 191set exec_output [prune_warnings $exec_output] 192 193regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output 194 195if [string match "" $exec_output] then { 196 pass $test6 197} else { 198 verbose -log "$exec_output" 199 fail $test6 200} 201 202set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross7 -T $srcdir/$subdir/cross7.t tmpdir/cross3.o"] 203set exec_output [prune_warnings $exec_output] 204 205regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output 206 207if [string match "" $exec_output] then { 208 fail $test7 209} else { 210 verbose -log "$exec_output" 211 if [regexp "prohibited cross reference from .* to `.*' in" $exec_output] { 212 pass $test7 213 } else { 214 fail $test7 215 } 216} 217 218set CFLAGS "$old_CFLAGS" 219set CC "$old_CC" 220