1# Test NOCROSSREFS in a linker script. 2# By Ian Lance Taylor, Cygnus Support. 3# Copyright (C) 2000-2014 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" 25 26if { ![is_remote host] && [which $CC] == 0 } { 27 untested $test1 28 untested $test2 29 untested $test3 30 return 31} 32 33global CFLAGS 34set old_CFLAGS "$CFLAGS" 35 36# Xtensa targets currently default to putting literal values in a separate 37# section and that requires linker script support, so put literals in text. 38if [istarget xtensa*-*-*] { 39 set CFLAGS "$CFLAGS -mtext-section-literals" 40} 41 42# If we have a compiler that doesn't use/reference dot-symbols, then 43# calls to functions reference the .opd section function descriptor. 44# This makes NOCROSSREFS rather useless on powerpc64. 45if [istarget powerpc64-*-*] { 46 set CFLAGS "$CFLAGS -mcall-aixdesc" 47} 48 49# Prevent the use of the MeP's small data area which references a symbol 50# called __sdabase which will not be defined by our test linker scripts. 51if [istarget mep*-*-elf] { 52 set CFLAGS "-mtiny=0" 53} 54 55# The .dsbt section and __c6xabi_DSBT_BASE are not defined in our test 56# linker scripts. 57if [istarget tic6x*-*-*] { 58 set CFLAGS "-mno-dsbt -msdata=none" 59} 60 61if { ![ld_compile $CC "$srcdir/$subdir/cross1.c" tmpdir/cross1.o] \ 62 || ![ld_compile $CC "$srcdir/$subdir/cross2.c" tmpdir/cross2.o] } { 63 unresolved $test1 64 unresolved $test2 65 set CFLAGS "$old_CFLAGS" 66 return 67} 68 69set flags [big_or_little_endian] 70 71if [istarget sh64*-*-elf] { 72 # This is what gcc passes to ld by default. 73 set flags "-mshelf32" 74} 75 76# IA64 has both ordered and unordered sections in an input file. 77setup_xfail ia64-*-* 78 79set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross1 -T $srcdir/$subdir/cross1.t tmpdir/cross1.o tmpdir/cross2.o"] 80 81set exec_output [prune_warnings $exec_output] 82 83regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output 84 85if [string match "" $exec_output] then { 86 fail $test1 87} else { 88 verbose -log "$exec_output" 89 if [regexp "prohibited cross reference from .* to `.*foo' in" $exec_output] { 90 pass $test1 91 } else { 92 fail $test1 93 } 94} 95 96# Check cross references within a single object. 97 98if { ![ld_compile $CC "$srcdir/$subdir/cross3.c" tmpdir/cross3.o] } { 99 unresolved $test2 100 set CFLAGS "$old_CFLAGS" 101 return 102} 103 104set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross2 -T $srcdir/$subdir/cross2.t tmpdir/cross3.o"] 105set exec_output [prune_warnings $exec_output] 106 107regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output 108 109if [string match "" $exec_output] then { 110 fail $test2 111} else { 112 verbose -log "$exec_output" 113 if [regexp "prohibited cross reference from .* to `.*' in" $exec_output] { 114 pass $test2 115 } else { 116 fail $test2 117 } 118} 119 120# Check cross references for ld -r 121 122if { ![ld_compile $CC "$srcdir/$subdir/cross4.c" tmpdir/cross4.o] } { 123 unresolved $test3 124 set CFLAGS "$old_CFLAGS" 125 return 126} 127 128if ![ld_relocate $ld tmpdir/cross3-partial.o "tmpdir/cross1.o tmpdir/cross4.o"] { 129 unresolved $test3 130 set CFLAGS "$old_CFLAGS" 131 return 132} 133 134set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross3 -T $srcdir/$subdir/cross3.t tmpdir/cross3-partial.o tmpdir/cross2.o"] 135 136set exec_output [prune_warnings $exec_output] 137 138regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output 139 140if [string match "" $exec_output] then { 141 pass $test3 142} else { 143 verbose -log "$exec_output" 144 fail $test3 145} 146 147set CFLAGS "$old_CFLAGS" 148