ld/testsuite/config/default.exp

   1 # Basic expect script for LD Regression Tests
   2 #   Copyright (C) 1993-2016 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_link_files {varname} {
 118     global $varname
 119     global target_triplet
 120     global srcdir
 121     global CC
 122     if ![info exists $varname] {
 123         #configure.host returns variables that can be substituted into
 124         #makefile rules, with embedded shell variable expansions.
 125         #make wants $$shell_var, we want $shell_var ...
 126         set cmd "host='$target_triplet' && . $srcdir/../configure.host && sed -e 's,\\\$\\\$,\$,g' <<EOF\n\$$varname\nEOF"
 127         set status [catch "exec sh -c [list $cmd]" result]
 128         if $status { error "Error getting native link files: $result" }
 129         set cmd "CC='$CC' && eval echo \"$result\""
 130         set status [catch "exec sh -c [list $cmd]" result]
 131         if $status { error "Error getting native link files: $result" }
 132         set $varname $result
 133         send_log "$varname = $result\n"
 134     }
 135 }
 136
 137 proc get_target_emul {} {
 138     global target_triplet
 139     global srcdir
 140     set status [catch "exec sh -c \"targ='$target_triplet' && . $srcdir/../configure.tgt && echo \\\$targ_emul\"" result]
 141     if $status { error "Error getting emulation name: $result" }
 142     return $result
 143 }
 144
 145 if [isnative] {
 146     foreach x {HOSTING_CRT0 HOSTING_SCRT0 HOSTING_LIBS HOSTING_SLIBS} {
 147         get_link_files $x
 148     }
 149 } else {
 150     foreach x {HOSTING_CRT0 HOSTING_SCRT0 HOSTING_LIBS HOSTING_SLIBS} { set $x "" }
 151 }
 152 if ![info exists HOSTING_EMU] { set HOSTING_EMU "-m [get_target_emul]" }
 153
 154 #
 155 # ld_version -- extract and print the version number of ld compiler (GCC)
 156 #
 157 proc ld_version {} {
 158     global ld
 159     default_ld_version $ld
 160 }
 161
 162 #
 163 # ld_exit -- just a stub for ld
 164 #
 165 proc ld_exit {} {
 166 }
 167
 168 #
 169 # ld_start
 170 #       relink the linker
 171 #
 172 proc ld_start { ld target } {
 173         #
 174 }
 175
 176 #
 177 # ld_relocate
 178 #       link an object using relocation
 179 #
 180 proc ld_relocate { ld target objects } {
 181         default_ld_relocate $ld $target $objects
 182 }
 183
 184 #
 185 # ld_link
 186 #       link a program using ld
 187 #
 188 proc ld_link { ld target objects } {
 189         default_ld_link $ld $target $objects
 190 }
 191
 192 #
 193 # ld_simple_link
 194 #       link a program using ld, without including any libraries
 195 #
 196 proc ld_simple_link { ld target objects } {
 197         default_ld_simple_link $ld $target $objects
 198 }
 199
 200 #
 201 # ld_compile
 202 #       compile an object using $cc
 203 #
 204 proc ld_compile { cc source object } {
 205         default_ld_compile $cc $source $object
 206 }
 207
 208 #
 209 # ld_assemble
 210 #       assemble a file
 211 #
 212 proc ld_assemble { as source object } {
 213         default_ld_assemble $as "" $source $object
 214 }
 215
 216 #
 217 # ld_assemble_flags
 218 #       assemble a file with extra flags
 219 #
 220 proc ld_assemble_flags { as flags source object } {
 221         default_ld_assemble $as $flags $source $object
 222 }
 223
 224 #
 225 # ld_nm
 226 #       run nm on a file
 227 #
 228 proc ld_nm { nm nmflags object } {
 229         default_ld_nm $nm $nmflags $object
 230 }
 231
 232 #
 233 # ld_exec
 234 #       execute ithe target
 235 #
 236 proc ld_exec { target output } {
 237         default_ld_exec $target $output
 238 }
 239
 240 # From gas-defs.exp, to support run_dump_test.
 241 if ![info exists AS] then {
 242     set AS $as
 243 }
 244
 245 if ![info exists ASFLAGS] then {
 246     set ASFLAGS ""
 247 }
 248
 249 if ![info exists OBJDUMP] then {
 250     set OBJDUMP $objdump
 251 }
 252
 253 if ![info exists OBJDUMPFLAGS] then {
 254     set OBJDUMPFLAGS {}
 255 }
 256
 257 if ![info exists NM] then {
 258     set NM $nm
 259 }
 260
 261 if ![info exists NMFLAGS] then {
 262     set NMFLAGS {}
 263 }
 264
 265 if ![info exists OBJCOPY] then {
 266     set OBJCOPY $objcopy
 267 }
 268
 269 if ![info exists OBJCOPYFLAGS] then {
 270     set OBJCOPYFLAGS {}
 271 }
 272
 273 if ![info exists READELF] then {
 274     set READELF [findfile $base_dir/../binutils/readelf]
 275 }
 276
 277 if ![info exists READELFFLAGS] then {
 278     set READELFFLAGS {}
 279 }
 280
 281 if ![info exists LD] then {
 282     set LD [findfile $base_dir/ld-new ./ld-new [transform ld]]
 283 }
 284
 285 if ![info exists LDFLAGS] then {
 286     set LDFLAGS {}
 287 }
 288
 289 # Set PLT_CFLAGS to "-fplt" if target compiler supports it.
 290
 291 if { ![info exists PLT_CFLAGS] } then {
 292     if { [which $CC] != 0 } {
 293         # Check if gcc supports -fplt
 294         set flags ""
 295         if [board_info [target_info name] exists cflags] {
 296             append flags " [board_info [target_info name] cflags]"
 297         }
 298         if [board_info [target_info name] exists ldflags] {
 299             append flags " [board_info [target_info name] ldflags]"
 300         }
 301
 302         set basename "tmpdir/plt[pid]"
 303         set src ${basename}.c
 304         set output ${basename}.o
 305         set f [open $src "w"]
 306         puts $f ""
 307         close $f
 308         if [is_remote host] {
 309             set src [remote_download host $src]
 310         }
 311         set plt_available [run_host_cmd_yesno "$CC" "$flags -c -fplt $src -o $output"]
 312         remote_file host delete $src
 313         remote_file host delete $output
 314         file delete $src
 315
 316         if { $plt_available == 1 } then {
 317             set PLT_CFLAGS "-fplt"
 318         } else {
 319             set PLT_CFLAGS ""
 320         }
 321     } else {
 322         set PLT_CFLAGS ""
 323     }
 324 }
 325
 326 # Set NOPIE_CFLAGS to "-fno-PIE" and NOPIE_LDFLAGS to "-no-pie" if
 327 # target compiler supports them.
 328
 329 if { ![info exists NOPIE_CFLAGS] || ![info exists NOPIE_LDFLAGS] } then {
 330     if { [which $CC] != 0 } {
 331         # Check if gcc supports -fno-PIE -no-pie.
 332         set flags ""
 333         if [board_info [target_info name] exists cflags] {
 334             append flags " [board_info [target_info name] cflags]"
 335         }
 336         if [board_info [target_info name] exists ldflags] {
 337             append flags " [board_info [target_info name] ldflags]"
 338         }
 339
 340         set basename "tmpdir/nopie[pid]"
 341         set src ${basename}.c
 342         set output ${basename}
 343         set f [open $src "w"]
 344         puts $f "int main (void) { return 0; }"
 345         close $f
 346         if [is_remote host] {
 347             set src [remote_download host $src]
 348         }
 349         set nopie_available [run_host_cmd_yesno "$CC" "$flags -fno-PIE -no-pie $src -o $output"]
 350         remote_file host delete $src
 351         remote_file host delete $output
 352         file delete $src
 353
 354         if { $nopie_available == 1 } then {
 355             set NOPIE_CFLAGS "-fno-PIE"
 356             set NOPIE_LDFLAGS "-no-pie"
 357         } else {
 358             set NOPIE_CFLAGS ""
 359             set NOPIE_LDFLAGS ""
 360         }
 361     } else {
 362         set NOPIE_CFLAGS ""
 363         set NOPIE_LDFLAGS ""
 364     }
 365 }