gcc/testsuite/lib/objc.exp

   1 # Copyright (C) 1992-2018 Free Software Foundation, Inc.
   2
   3 # This program 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 3 of the License, or
   6 # (at your option) any later version.
   7 #
   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.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with GCC; see the file COPYING3.  If not see
  15 # <http://www.gnu.org/licenses/>.
  16
  17 # This file was written by Rob Savoye (rob@cygnus.com)
  18 # Currently maintained by Doug Evans (dje@cygnus.com)
  19
  20 # This file is loaded by the tool init file (eg: unix.exp).  It provides
  21 # default definitions for objc_start, etc. and other supporting cast members.
  22
  23 # These globals are used by objc_start if no compiler arguments are provided.
  24 # They are also used by the various testsuites to define the environment:
  25 # where to find stdio.h, libc.a, etc.
  26
  27 load_lib libgloss.exp
  28 load_lib prune.exp
  29 load_lib gcc-defs.exp
  30 load_lib timeout.exp
  31 load_lib target-libpath.exp
  32 load_lib target-utils.exp
  33
  34 #
  35 # OBJC_UNDER_TEST is the compiler under test.
  36 #
  37
  38 #
  39 # default_objc_version -- extract and print the version number of the compiler
  40 #
  41
  42 proc default_objc_version { } {
  43     global OBJC_UNDER_TEST
  44
  45     objc_init
  46
  47     # Ignore any arguments after the command.
  48     set compiler [lindex $OBJC_UNDER_TEST 0]
  49
  50     if ![is_remote host] {
  51         set compiler_name [which $compiler]
  52     } else {
  53         set compiler_name $compiler
  54     }
  55
  56     # Verify that the compiler exists.
  57     if { $compiler_name != 0 } then {
  58         set tmp [remote_exec host "$compiler -v"]
  59         set status [lindex $tmp 0]
  60         set output [lindex $tmp 1]
  61         regexp " version \[^\n\r\]*" $output version
  62         if { $status == 0 && [info exists version] } then {
  63             clone_output "$compiler_name $version\n"
  64         } else {
  65             clone_output "Couldn't determine version of $compiler_name: $output\n"
  66         }
  67     } else {
  68         # Compiler does not exist (this should have already been detected).
  69         warning "$compiler does not exist"
  70     }
  71 }
  72
  73 #
  74 # Call objc_version. We do it this way so we can override it if needed.
  75 #
  76 proc objc_version { } {
  77     default_objc_version
  78 }
  79
  80 #
  81 # objc_init -- called at the start of each .exp script.
  82 #
  83 # There currently isn't much to do, but always using it allows us to
  84 # make some enhancements without having to go back and rewrite the scripts.
  85 #
  86
  87 set objc_initialized 0
  88
  89 proc objc_init { args } {
  90     global rootme
  91     global tmpdir
  92     global libdir
  93     global gluefile wrap_flags
  94     global objc_initialized
  95     global OBJC_UNDER_TEST
  96     global TOOL_EXECUTABLE
  97     global objc_libgcc_s_path
  98     global gcc_warning_prefix
  99     global gcc_error_prefix
 100
 101     # We set LC_ALL and LANG to C so that we get the same error messages as
 102     # expected.
 103     setenv LC_ALL C
 104     setenv LANG C
 105
 106     # Many hosts now default to a non-ASCII C locale, however, so
 107     # they can set a charset encoding here if they need.
 108     if { [ishost "*-*-cygwin*"] } {
 109       setenv LC_ALL C.ASCII
 110       setenv LANG C.ASCII
 111     }
 112
 113     if { $objc_initialized == 1 } { return; }
 114
 115     if ![info exists OBJC_UNDER_TEST] then {
 116         if [info exists TOOL_EXECUTABLE] {
 117             set OBJC_UNDER_TEST $TOOL_EXECUTABLE
 118         } else {
 119             set OBJC_UNDER_TEST [find_gcc]
 120         }
 121     }
 122
 123     if ![info exists tmpdir] then {
 124         set tmpdir /tmp
 125     }
 126
 127     set gcc_warning_prefix "warning:"
 128     set gcc_error_prefix "(fatal )?error:"
 129
 130     objc_maybe_build_wrapper "${tmpdir}/objc-testglue.o"
 131
 132     set objc_libgcc_s_path [gcc-set-multilib-library-path $OBJC_UNDER_TEST]
 133 }
 134
 135 proc objc_target_compile { source dest type options } {
 136     global rootme
 137     global tmpdir
 138     global gluefile wrap_flags
 139     global srcdir
 140     global OBJC_UNDER_TEST
 141     global TOOL_OPTIONS
 142     global ld_library_path
 143     global objc_libgcc_s_path
 144     global shlib_ext
 145     global TEST_ALWAYS_FLAGS
 146
 147     set shlib_ext [get_shlib_extension]
 148     set ld_library_path ".:${objc_libgcc_s_path}"
 149
 150     # We have to figure out which runtime will be used on darwin because
 151     # we need to add the include path for the gnu runtime if that is in
 152     # use.
 153     # First set the default...
 154     if { [istarget *-*-darwin*] } {
 155         set nextruntime 1
 156     } else {
 157         set nextruntime 0
 158     }
 159     verbose "initial next runtime state : $nextruntime" 2
 160     # Next, see if we define the option in dg-options...
 161     foreach opt $options {
 162         if [regexp ".*-fnext-runtime.*" $opt] {
 163             set nextruntime 1
 164         }
 165         if [regexp ".*-fgnu-runtime.*" $opt] {
 166             set nextruntime 0
 167         }
 168     }
 169     verbose "next runtime state after dg opts: $nextruntime"  2
 170
 171     set tgt [target_info name]
 172     if [board_info $tgt exists multilib_flags] {
 173         set lb [board_info $tgt multilib_flags]
 174         verbose "board multilib_flags $lb" 2
 175         foreach opt $lb {
 176             if [regexp ".*-fnext-runtime.*" $opt] {
 177                 set nextruntime 1
 178             }
 179             if [regexp ".*-fgnu-runtime.*" $opt] {
 180                 set nextruntime 0
 181             }
 182         }
 183     }
 184     verbose "next runtime state after any multilib opts: $nextruntime" 2
 185
 186     lappend options "libs=-lobjc"
 187     verbose "shared lib extension: $shlib_ext" 3
 188
 189     if { [target_info needs_status_wrapper]!="" && [info exists gluefile] } {
 190         lappend options "libs=${gluefile}"
 191         lappend options "ldflags=$wrap_flags"
 192     }
 193
 194     # TEST_ALWAYS_FLAGS are flags that should be passed to every
 195     # compilation.  They are passed first to allow individual
 196     # tests to override them.
 197     if [info exists TEST_ALWAYS_FLAGS] {
 198         set options [concat "{additional_flags=$TEST_ALWAYS_FLAGS}" $options]
 199     }
 200
 201     # TOOL_OPTIONS must come first, so that it doesn't override testcase
 202     # specific options.
 203     if [info exists TOOL_OPTIONS] {
 204         set options [concat "{additional_flags=$TOOL_OPTIONS}" $options]
 205     }
 206
 207     # If we have built libobjc along with the compiler, point the test harness
 208     # at it (and associated headers).
 209
 210     set objcpath "[get_multilibs]"
 211
 212     set libobjc_dir [lookfor_file ${objcpath} libobjc/.libs/libobjc.a]
 213     if { $libobjc_dir == "" } {
 214         # On darwin there is, potentially, a gnu runtime too.
 215         set libobjc_dir [lookfor_file ${objcpath} libobjc/.libs/libobjc-gnu.a]
 216     }
 217     # Perhaps we didn't build static libs.
 218     if { $libobjc_dir == "" } {
 219         set libobjc_dir [lookfor_file ${objcpath} libobjc/.libs/libobjc.${shlib_ext}]
 220         # On darwin there is, potentially, a gnu runtime too.
 221         if { $libobjc_dir == "" } {
 222             set libobjc_dir [lookfor_file ${objcpath} libobjc/.libs/libobjc-gnu.${shlib_ext}]
 223         }
 224     }
 225
 226     if { $libobjc_dir != "" } {
 227         # If we are using the gnu runtime, add its includes.
 228         if { $nextruntime == 0 } {
 229             set objc_include_dir "${srcdir}/../../libobjc"
 230             lappend options "additional_flags=-I${objc_include_dir}"
 231             verbose "adding gnu runtime include dir: $objc_include_dir "
 232         }
 233         set libobjc_dir [file dirname ${libobjc_dir}]
 234         # Allow for %s spec substitutions..
 235         set objc_link_flags " -B${libobjc_dir} "
 236         lappend options "additional_flags=${objc_link_flags}"
 237         set objc_link_flags " -L${libobjc_dir} "
 238         lappend options "additional_flags=${objc_link_flags}"
 239         append ld_library_path ":${libobjc_dir}"
 240     }
 241     if { $type == "precompiled_header" } {
 242         # If we generating a precompiled header, we have say this is an
 243         # objective-C header.
 244         set source [concat "-x objective-c-header" $source]
 245     }
 246     lappend options "compiler=$OBJC_UNDER_TEST"
 247     lappend options "timeout=[timeout_value]"
 248
 249     set_ld_library_path_env_vars
 250
 251     set options [dg-additional-files-options $options $source]
 252
 253     return [target_compile $source $dest $type $options]
 254 }
 255
 256 #
 257 # objc_pass -- utility to record a testcase passed.
 258 #
 259
 260 proc objc_pass { testcase cflags } {
 261     if { "$cflags" == "" } {
 262         pass "$testcase"
 263     } else {
 264         pass "$testcase, $cflags"
 265     }
 266 }
 267
 268 #
 269 # objc_fail -- utility to record a testcase failed
 270 #
 271
 272 proc objc_fail { testcase cflags } {
 273     if { "$cflags" == "" } {
 274         fail "$testcase"
 275     } else {
 276         fail "$testcase, $cflags"
 277     }
 278 }
 279
 280 #
 281 # objc_finish -- called at the end of every .exp script that calls objc_init
 282 #
 283 # The purpose of this proc is to hide all quirks of the testing environment
 284 # from the testsuites.  It also exists to undo anything that objc_init did
 285 # (that needs undoing).
 286 #
 287
 288 proc objc_finish { } {
 289     # The testing harness apparently requires this.
 290     global errorInfo
 291
 292     if [info exists errorInfo] then {
 293         unset errorInfo
 294     }
 295
 296     # Might as well reset these (keeps our caller from wondering whether
 297     # s/he has to or not).
 298     global prms_id bug_id
 299     set prms_id 0
 300     set bug_id 0
 301 }
 302
 303 proc objc_exit { } {
 304     global gluefile
 305
 306     if [info exists gluefile] {
 307         file_on_build delete $gluefile
 308         unset gluefile
 309     }
 310 }
 311
 312 # If this is an older version of dejagnu (without runtest_file_p),
 313 # provide one and assume the old syntax: foo1.exp bar1.c foo2.exp bar2.c.
 314 # This can be deleted after next dejagnu release.
 315
 316 if { [info procs runtest_file_p] == "" } then {
 317     proc runtest_file_p { runtests testcase } {
 318         if { $runtests != "" && [regexp "\[.\]\[cC\]" $runtests] } then {
 319             if { [lsearch $runtests [file tail $testcase]] >= 0 } then {
 320                 return 1
 321             } else {
 322                 return 0
 323             }
 324         }
 325         return 1
 326     }
 327 }
 328
 329 # Provide a definition of this if missing (delete after next dejagnu release).
 330
 331 if { [info procs prune_warnings] == "" } then {
 332     proc prune_warnings { text } {
 333         return $text
 334     }
 335 }
 336
 337 # Prune messages from objc that aren't useful.
 338
 339 proc prune_objc_output { text } {
 340     #send_user "Before:$text\n"
 341     regsub -all "(^|\n)\[^\n\]*: In (function|method) \[^\n\]*" $text "" text
 342     regsub -all "(^|\n)\[^\n\]*: At top level:\[^\n\]*" $text "" text
 343
 344     # It would be nice to avoid passing anything to objc that would cause it to
 345     # issue these messages (since ignoring them seems like a hack on our part),
 346     # but that's too difficult in the general case.  For example, sometimes
 347     # you need to use -B to point objc at crt0.o, but there are some targets
 348     # that don't have crt0.o.
 349     regsub -all "(^|\n)\[^\n\]*file path prefix \[^\n\]* never used" $text "" text
 350     regsub -all "(^|\n)\[^\n\]*linker input file unused since linking not done" $text "" text
 351
 352     #send_user "After:$text\n"
 353
 354     return $text
 355 }
 356