gcc/testsuite/lib/gcc.exp

   1 # Copyright (C) 1992-2017 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 gcc_start, etc. and other supporting cast members.
  22
  23 # These globals are used by gcc_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 # we want to use libgloss so we can get find_gcc.
  28 load_lib libgloss.exp
  29 load_lib prune.exp
  30 load_lib gcc-defs.exp
  31 load_lib timeout.exp
  32
  33 #
  34 # GCC_UNDER_TEST is the compiler under test.
  35 #
  36
  37 #
  38 # default_gcc_version -- extract and print the version number of the compiler
  39 #
  40
  41 proc default_gcc_version { } {
  42     global GCC_UNDER_TEST
  43
  44     gcc_init
  45
  46     # ignore any arguments after the command
  47     set compiler [lindex $GCC_UNDER_TEST 0]
  48
  49     if ![is_remote host] {
  50         set compiler_name [which $compiler]
  51     } else {
  52         set compiler_name $compiler
  53     }
  54
  55     # verify that the compiler exists
  56     if { $compiler_name != 0 } then {
  57         set tmp [remote_exec host "$compiler -v"]
  58         set status [lindex $tmp 0]
  59         set output [lindex $tmp 1]
  60         regexp " version \[^\n\r\]*" $output version
  61         if { $status == 0 && [info exists version] } then {
  62             clone_output "$compiler_name $version\n"
  63         } else {
  64             clone_output "Couldn't determine version of $compiler_name: $output\n"
  65         }
  66     } else {
  67         # compiler does not exist (this should have already been detected)
  68         warning "$compiler does not exist"
  69     }
  70 }
  71
  72 #
  73 # gcc_version -- Call default_gcc_version, so we can override it if needed.
  74 #
  75
  76 proc gcc_version { } {
  77     default_gcc_version
  78 }
  79
  80 #
  81 # gcc_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 gcc_initialized 0
  88
  89 proc gcc_init { args } {
  90     global tmpdir
  91     global libdir
  92     global gluefile wrap_flags
  93     global gcc_initialized
  94     global GCC_UNDER_TEST
  95     global TOOL_EXECUTABLE
  96     global gcc_warning_prefix
  97     global gcc_error_prefix
  98
  99     if { $gcc_initialized == 1 } { return; }
 100
 101     if ![info exists GCC_UNDER_TEST] {
 102         if [info exists TOOL_EXECUTABLE] {
 103             set GCC_UNDER_TEST $TOOL_EXECUTABLE
 104         } else {
 105             set GCC_UNDER_TEST "[find_gcc]"
 106         }
 107     }
 108
 109     if ![info exists tmpdir] then {
 110         set tmpdir /tmp
 111     }
 112
 113     set gcc_warning_prefix "warning:"
 114     set gcc_error_prefix "(fatal )?error:"
 115
 116     gcc_maybe_build_wrapper "${tmpdir}/gcc-testglue.o"
 117 }
 118
 119 #
 120 # gcc_target_compile -- compile a source file
 121 #
 122
 123 proc gcc_target_compile { source dest type options } {
 124     global tmpdir
 125     global gluefile wrap_flags
 126     global GCC_UNDER_TEST
 127     global TOOL_OPTIONS
 128     global TEST_ALWAYS_FLAGS
 129     global flags_to_postpone
 130     global board_info
 131
 132     if {[target_info needs_status_wrapper] != "" && \
 133             [target_info needs_status_wrapper] != "0" && \
 134             [info exists gluefile] } {
 135         lappend options "libs=${gluefile}"
 136         lappend options "ldflags=$wrap_flags"
 137     }
 138
 139     global TEST_EXTRA_LIBS
 140     if [info exists TEST_EXTRA_LIBS] {
 141         lappend options "ldflags=$TEST_EXTRA_LIBS"
 142     }
 143
 144     # TEST_ALWAYS_FLAGS are flags that should be passed to every
 145     # compilation.  They are passed first to allow individual
 146     # tests to override them.
 147     if [info exists TEST_ALWAYS_FLAGS] {
 148         set options [concat "{additional_flags=$TEST_ALWAYS_FLAGS}" $options]
 149     }
 150
 151     # TOOL_OPTIONS must come first, so that it doesn't override testcase
 152     # specific options.
 153     if [info exists TOOL_OPTIONS] {
 154         set options [concat "{additional_flags=$TOOL_OPTIONS}" $options]
 155     }
 156
 157     # bind_pic_locally adds -fpie/-fPIE flags to flags_to_postpone and it is
 158     # appended here to multilib_flags as it can be overridden by the latter
 159     # if it was added earlier. After the target_compile, multilib_flags is
 160     # restored to its orignal content.
 161     set tboard [target_info name]
 162     if {[board_info $tboard exists multilib_flags]} {
 163         set orig_multilib_flags "[board_info [target_info name] multilib_flags]"
 164         append board_info($tboard,multilib_flags) " $flags_to_postpone"
 165     }
 166
 167     lappend options "timeout=[timeout_value]"
 168     lappend options "compiler=$GCC_UNDER_TEST"
 169     set options [dg-additional-files-options $options $source]
 170     set return_val [target_compile $source $dest $type $options]
 171
 172     if {[board_info $tboard exists multilib_flags]} {
 173         set board_info($tboard,multilib_flags) $orig_multilib_flags
 174         set flags_to_postpone ""
 175     }
 176
 177     return $return_val
 178 }
 179