ld/testsuite/config/default.exp

   1 # Basic expect script for LD Regression Tests
   2 #   Copyright (C) 1993-2017 Free Software Foundation, Inc.
   3 #
   4 # This file is part of the GNU Binutils.
   5 #
   6 # This file is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  19 # MA 02110-1301, USA.
  20 #
  21 # Written by Jeffrey Wheat (cassidy@cygnus.com)
  22 #
  23
  24 if ![info exists ld] then {
  25     set ld [findfile $base_dir/ld-new $base_dir/ld-new [transform ld]]
  26 }
  27
  28 if ![info exists as] then {
  29     set as [findfile $base_dir/../gas/as-new $base_dir/../gas/as-new [transform as]]
  30 }
  31
  32 if ![info exists nm] then {
  33     set nm [findfile $base_dir/../binutils/nm-new $base_dir/../binutils/nm-new [transform nm]]
  34 }
  35
  36 if ![info exists objdump] then {
  37     set objdump [findfile $base_dir/../binutils/objdump]
  38 }
  39
  40 if ![info exists objcopy] then {
  41     set objcopy [findfile $base_dir/../binutils/objcopy]
  42 }
  43
  44 if ![info exists ar] then {
  45     set ar [findfile $base_dir/../binutils/ar]
  46 }
  47
  48 if ![info exists strip] then {
  49     set strip [findfile $base_dir/../binutils/strip-new $base_dir/../binutils/strip-new [transform strip]]
  50 }
  51
  52 if ![info exists size] then {
  53     set size [findfile $base_dir/../binutils/size]
  54 }
  55
  56 remote_exec host "mkdir -p tmpdir"
  57
  58 # Make symlinks from tmpdir/ld to the linker and assembler in the
  59 # build tree, so that we can use a -B option to gcc to force it to use
  60 # the newly built linker and assembler.
  61 if {![file isdirectory tmpdir/ld]} then {
  62     catch "exec mkdir tmpdir/ld" status
  63     catch "exec ln -s ../../ld-new tmpdir/ld/ld" status
  64     catch "exec ln -s ld tmpdir/ld/collect-ld" status
  65     catch "exec ln -s ../../../gas/as-new tmpdir/ld/as" status
  66 }
  67 set gcc_B_opt "-B[pwd]/tmpdir/ld/"
  68
  69 # load the linker path
  70 set ld_L_opt ""
  71 if {[file exists tmpdir/libpath.exp]} {
  72     load_lib tmpdir/libpath.exp
  73
  74     foreach dir $libpath {
  75         append ld_L_opt " -L$dir"
  76     }
  77 }
  78
  79 # Many ELF testcases expect that "-z relro" is off.
  80 set ld_elf_shared_opt "-z norelro"
  81
  82 # The "make check" target in the Makefile passes in
  83 # "CC=$(CC_FOR_TARGET)".  But, if the user invokes runtest directly
  84 # (as when testing an installed linker), these flags may not be set.
  85 if {![info exists CC]} {
  86     set CC [find_gcc]
  87 }
  88 if {![info exists CFLAGS]} {
  89     set CFLAGS "-g -O2"
  90 }
  91 if {![info exists CXX]} {
  92     set CXX [find_g++]
  93 }
  94 if {![info exists CXXFLAGS]} {
  95     set CXXFLAGS ""
  96 }
  97
  98 # The mips64-*-linux-gnu compiler defaults to the N32 ABI after
  99 # installed, but to the O32 ABI in the build tree, because of some
 100 # specs-file hacks.  Make sure we use an ABI that is compatible with
 101 # the one we expect.
 102 if {[istarget mips64*-*-linux*] &&
 103     (![board_info [target_info name] exists multilib_flags] ||
 104      ![string match "*-mabi" [board_info [target_info name] multilib_flags]])
 105    } {
 106     append gcc_B_opt " -mabi=n32"
 107 }
 108
 109 if { [istarget rx-*-*] } {
 110     global ASFLAGS
 111     set ASFLAGS "-muse-conventional-section-names"
 112 }
 113
 114 # load the utility procedures
 115 load_lib ld-lib.exp
 116
 117 proc get_target_emul {} {
 118     global target_triplet
 119     global srcdir
 120     set status [catch "exec sh -c \"targ='$target_triplet' && . $srcdir/../configure.tgt && echo \\\$targ_emul\"" result]
 121     if $status { error "Error getting emulation name: $result" }
 122     return $result
 123 }
 124
 125 if ![info exists HOSTING_EMU] { set HOSTING_EMU "-m [get_target_emul]" }
 126
 127 #
 128 # ld_version -- extract and print the version number of ld compiler (GCC)
 129 #
 130 proc ld_version {} {
 131     global ld
 132     default_ld_version $ld
 133 }
 134
 135 #
 136 # ld_exit -- just a stub for ld
 137 #
 138 proc ld_exit {} {
 139 }
 140
 141 #
 142 # ld_start
 143 #       relink the linker
 144 #
 145 proc ld_start { ld target } {
 146         #
 147 }
 148
 149 #
 150 # ld_relocate
 151 #       link an object using relocation
 152 #
 153 proc ld_relocate { ld target objects } {
 154         default_ld_relocate $ld $target $objects
 155 }
 156
 157 #
 158 # ld_link
 159 #       link a program using ld
 160 #
 161 proc ld_link { ld target objects } {
 162         default_ld_link $ld $target $objects
 163 }
 164
 165 #
 166 # ld_compile
 167 #       compile an object using $cc
 168 #
 169 proc ld_compile { cc source object } {
 170         default_ld_compile $cc $source $object
 171 }
 172
 173 #
 174 # ld_assemble
 175 #       assemble a file
 176 #
 177 proc ld_assemble { as source object } {
 178         default_ld_assemble $as "" $source $object
 179 }
 180
 181 #
 182 # ld_assemble_flags
 183 #       assemble a file with extra flags
 184 #
 185 proc ld_assemble_flags { as flags source object } {
 186         default_ld_assemble $as $flags $source $object
 187 }
 188
 189 #
 190 # ld_nm
 191 #       run nm on a file
 192 #
 193 proc ld_nm { nm nmflags object } {
 194         default_ld_nm $nm $nmflags $object
 195 }
 196
 197 #
 198 # ld_exec
 199 #       execute ithe target
 200 #
 201 proc ld_exec { target output } {
 202         default_ld_exec $target $output
 203 }
 204
 205 # From gas-defs.exp, to support run_dump_test.
 206 if ![info exists AS] then {
 207     set AS $as
 208 }
 209
 210 if ![info exists ASFLAGS] then {
 211     set ASFLAGS ""
 212 }
 213
 214 if ![info exists OBJDUMP] then {
 215     set OBJDUMP $objdump
 216 }
 217
 218 if ![info exists OBJDUMPFLAGS] then {
 219     set OBJDUMPFLAGS {}
 220 }
 221
 222 if ![info exists NM] then {
 223     set NM $nm
 224 }
 225
 226 if ![info exists NMFLAGS] then {
 227     set NMFLAGS {}
 228 }
 229
 230 if ![info exists OBJCOPY] then {
 231     set OBJCOPY $objcopy
 232 }
 233
 234 if ![info exists OBJCOPYFLAGS] then {
 235     set OBJCOPYFLAGS {}
 236 }
 237
 238 if ![info exists READELF] then {
 239     set READELF [findfile $base_dir/../binutils/readelf]
 240 }
 241
 242 if ![info exists READELFFLAGS] then {
 243     set READELFFLAGS {}
 244 }
 245
 246 if ![info exists LD] then {
 247     set LD [findfile $base_dir/ld-new ./ld-new [transform ld]]
 248 }
 249
 250 if ![info exists LDFLAGS] then {
 251     set LDFLAGS {}
 252 }
 253
 254 # Set LD_CLASS to "64bit" for a 64-bit *host* linker.
 255 if { ![info exists LD_CLASS] } then {
 256     set REAL_LD [findfile $base_dir/.libs/ld-new .libs/ld-new $LD [transform ld]]
 257     set readelf_output [run_host_cmd "$READELF" "-h $REAL_LD"]
 258     if { [regexp {[ \t]+Class:[ \t]+ELF64} $readelf_output] } then {
 259         set LD_CLASS "64bit"
 260     } else {
 261         set LD_CLASS "32bit"
 262     }
 263 }
 264
 265 # Set PLT_CFLAGS to "-fplt" if target compiler supports it.
 266
 267 if { ![info exists PLT_CFLAGS] } then {
 268     if { [which $CC] != 0 } {
 269         # Check if gcc supports -fplt
 270         set flags ""
 271         if [board_info [target_info name] exists cflags] {
 272             append flags " [board_info [target_info name] cflags]"
 273         }
 274         if [board_info [target_info name] exists ldflags] {
 275             append flags " [board_info [target_info name] ldflags]"
 276         }
 277
 278         set basename "tmpdir/plt[pid]"
 279         set src ${basename}.c
 280         set output ${basename}.o
 281         set f [open $src "w"]
 282         puts $f ""
 283         close $f
 284         if [is_remote host] {
 285             set src [remote_download host $src]
 286         }
 287         set plt_available [run_host_cmd_yesno "$CC" "$flags -c -fplt $src -o $output"]
 288         remote_file host delete $src
 289         remote_file host delete $output
 290         file delete $src
 291
 292         if { $plt_available == 1 } then {
 293             set PLT_CFLAGS "-fplt"
 294         } else {
 295             set PLT_CFLAGS ""
 296         }
 297     } else {
 298         set PLT_CFLAGS ""
 299     }
 300 }
 301
 302 # Set NOPIE_CFLAGS to "-fno-PIE" and NOPIE_LDFLAGS to "-no-pie" if
 303 # target compiler supports them.
 304
 305 if { ![info exists NOPIE_CFLAGS] || ![info exists NOPIE_LDFLAGS] } then {
 306     if { [which $CC] != 0 } {
 307         # Check if gcc supports -fno-PIE -no-pie.
 308         set flags ""
 309         if [board_info [target_info name] exists cflags] {
 310             append flags " [board_info [target_info name] cflags]"
 311         }
 312         if [board_info [target_info name] exists ldflags] {
 313             append flags " [board_info [target_info name] ldflags]"
 314         }
 315
 316         set basename "tmpdir/nopie[pid]"
 317         set src ${basename}.c
 318         set output ${basename}
 319         set f [open $src "w"]
 320         puts $f "int main (void) { return 0; }"
 321         close $f
 322         if [is_remote host] {
 323             set src [remote_download host $src]
 324         }
 325         set nopie_available [run_host_cmd_yesno "$CC" "$flags -fno-PIE -no-pie $src -o $output"]
 326         remote_file host delete $src
 327         remote_file host delete $output
 328         file delete $src
 329
 330         if { $nopie_available == 1 } then {
 331             set NOPIE_CFLAGS "-fno-PIE"
 332             set NOPIE_LDFLAGS "-no-pie"
 333         } else {
 334             set NOPIE_CFLAGS ""
 335             set NOPIE_LDFLAGS ""
 336         }
 337     } else {
 338         set NOPIE_CFLAGS ""
 339         set NOPIE_LDFLAGS ""
 340     }
 341 }
 342
 343 # Set GNU2_CFLAGS to "-mtls-dialect=gnu2" if target compiler supports it.
 344
 345 if { ![info exists GNU2_CFLAGS] } then {
 346     if { [which $CC] != 0 } {
 347         # Check if gcc supports -mtls-dialect=gnu2
 348         set flags ""
 349         if [board_info [target_info name] exists cflags] {
 350             append flags " [board_info [target_info name] cflags]"
 351         }
 352         if [board_info [target_info name] exists ldflags] {
 353             append flags " [board_info [target_info name] ldflags]"
 354         }
 355
 356         set basename "tmpdir/gnu2[pid]"
 357         set src ${basename}.c
 358         set output ${basename}.o
 359         set f [open $src "w"]
 360         puts $f "__thread int yyy = 100;"
 361         close $f
 362         if [is_remote host] {
 363             set src [remote_download host $src]
 364         }
 365         set gnu2_available [run_host_cmd_yesno "$CC" "$flags -c -mtls-dialect=gnu2 $src -o $output"]
 366         remote_file host delete $src
 367         remote_file host delete $output
 368         file delete $src
 369
 370         if { $gnu2_available == 1 } then {
 371             set GNU2_CFLAGS "-mtls-dialect=gnu2"
 372         } else {
 373             set GNU2_CFLAGS ""
 374         }
 375     } else {
 376         set GNU2_CFLAGS ""
 377     }
 378 }