ld/testsuite/ld-scripts/script.exp

   1 # Test basic linker script functionality
   2 # By Ian Lance Taylor, Cygnus Support
   3 #   Copyright (C) 1999-2021 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
  22 set testname "script"
  23
  24 if ![ld_assemble $as $srcdir/$subdir/script.s tmpdir/script.o] {
  25     unresolved $testname
  26     return
  27 }
  28
  29 proc check_script { } {
  30     global nm
  31     global testname
  32     global nm_output
  33
  34     if ![ld_nm $nm "" tmpdir/script] {
  35         fail $testname
  36         return
  37     }
  38
  39     if {![info exists nm_output(text_start)] \
  40             || ![info exists nm_output(text_end)] \
  41             || ![info exists nm_output(data_start)] \
  42             || ![info exists nm_output(data_end)]} {
  43         send_log "bad output from nm\n"
  44         verbose "bad output from nm"
  45         fail $testname
  46         return
  47     }
  48
  49     set passes 1
  50     set text_end 0x104
  51     set data_end 0x1004
  52
  53     if [istarget *c4x*-*-*] then {
  54         set text_end 0x101
  55         set data_end 0x1001
  56     }
  57
  58     if [istarget *c54x*-*-*] then {
  59         set text_end 0x102
  60         set data_end 0x1002
  61     }
  62
  63     if {$nm_output(text_start) != 0x100} {
  64         send_log "text_start == $nm_output(text_start)\n"
  65         verbose "text_start == $nm_output(text_start)"
  66         set passes 0
  67     }
  68
  69     if {[info exists nm_output(tred)] \
  70         && $nm_output(tred) != (0x100 + 0x4000)} {
  71         send_log "tred == $nm_output(tred)\n"
  72         verbose "tred == $nm_output(tred)"
  73         set passes 0
  74     }
  75
  76     if {$nm_output(text_end) < $text_end \
  77             || $nm_output(text_end) > 0x110} {
  78         send_log "text_end == $nm_output(text_end)\n"
  79         verbose "text_end == $nm_output(text_end)"
  80         set passes 0
  81     }
  82
  83     if {$nm_output(data_start) != 0x1000} {
  84         send_log "data_start == $nm_output(data_start)\n"
  85         verbose "data_start == $nm_output(data_start)"
  86         set passes 0
  87     }
  88
  89     if {[info exists nm_output(fred)] \
  90         && $nm_output(fred) != (0x1000 + 0x1000)} {
  91         send_log "fred == $nm_output(fred)\n"
  92         verbose "fred == $nm_output(fred)"
  93         set passes 0
  94     }
  95
  96     if {$nm_output(data_end) < $data_end \
  97             || $nm_output(data_end) > 0x1010} {
  98         send_log "data_end == $nm_output(data_end)\n"
  99         verbose "data_end == $nm_output(data_end)"
 100         set passes 0
 101     }
 102
 103     if { $passes } {
 104         pass $testname
 105     } else {
 106         fail $testname
 107     }
 108 }
 109
 110 proc extract_symbol_test { testfile testname } {
 111     global objcopy
 112     global nm
 113     global size
 114     global target_triplet
 115
 116     set copyfile tmpdir/extract
 117     set args "--extract-symbol $testfile $copyfile"
 118     set exec_output [run_host_cmd $objcopy $args]
 119     if ![string equal "" $exec_output] {
 120         fail $testname
 121         return
 122     }
 123
 124     set orig_syms [run_host_cmd $nm $testfile]
 125     set syms_massaged $orig_syms
 126     switch -regexp $target_triplet {
 127         ^mmix-knuth-mmixware$ {
 128             # Without section sizes (stripped together with the
 129             # contents for this target), we can't deduce the symbol
 130             # types.  Artificially tracking the symbol types is
 131             # considered not worthwhile as there's no known use-case
 132             # for --extract-symbols for this target.  The option is
 133             # supported just enough to emit the same symbol values,
 134             # but absolute symbol types are expected.
 135             regsub -all " \[TD\] " $syms_massaged " A " syms_massaged
 136         }
 137         ^mips-*-* {
 138             # This test cannot proceed any further for MIPS targets.
 139             # The extract_syms operation produces a binary with a zero
 140             # length .reginfo section, which is illegal under the MIPS
 141             # ABI.  Since producing such sections is part of the expected
 142             # behaviour of --extract-symbols, no further testing can be
 143             # performed.  Fortunately this should not matter as extracting
 144             # symbols is only needed for VxWorks support.
 145             pass $testname
 146             return
 147         }
 148         [a-z]*-*-pe$ {
 149             # Fails for PE based targets because the extracted section
 150             # relative symbols (eg tred or .text) all become undefined
 151             # when the sections are blown away by --extract-symbol.  Again
 152             # this should not matter as --extract-symbol is only used by
 153             # VxWorks.
 154             pass $testname
 155             return
 156         }
 157         # More PE variations...
 158         [a-z]*-*-mingw* {
 159             pass $testname
 160             return
 161         }
 162         [a-z]*-*-cygwin$ {
 163             pass $testname
 164             return
 165         }
 166     }
 167
 168     set extract_syms [run_host_cmd $nm $copyfile]
 169     if ![string equal $syms_massaged $extract_syms] {
 170         fail $testname
 171         return
 172     }
 173
 174     # Check that the stripped section contains no code or data.
 175     set exec_output [run_host_cmd $size $copyfile]
 176     if ![regexp ".* 0\[  \]+0\[  \]+0\[  \]+0\[  \]+0\[  \]+.*" $exec_output] {
 177         fail $testname
 178         return
 179     }
 180
 181     pass $testname
 182 }
 183
 184 # PE targets need to set the image base to 0 to avoid complications from nm.
 185 set old_LDFLAGS $LDFLAGS
 186 if { [is_pecoff_format] } then {
 187     append LDFLAGS " --image-base 0"
 188 } elseif { [is_xcoff_format] } then {
 189     append LDFLAGS " -bnogc"
 190 }
 191 set flags $LDFLAGS
 192
 193 if ![ld_link $ld tmpdir/script "$flags -T $srcdir/$subdir/script.t tmpdir/script.o"] {
 194     fail $testname
 195 } else {
 196     check_script
 197 }
 198
 199 set testname "MRI script"
 200
 201 if ![ld_link $ld tmpdir/script "$flags -c $srcdir/$subdir/scriptm.t"] {
 202     fail $testname
 203 } else {
 204     check_script
 205 }
 206
 207 set testname "MEMORY"
 208
 209 if ![ld_link $ld tmpdir/script "$flags -T $srcdir/$subdir/memory.t tmpdir/script.o"] {
 210     fail $testname
 211 } else {
 212     check_script
 213 }
 214
 215 set testname "MEMORY with symbols"
 216 if ![ld_link $ld tmpdir/script "$flags -defsym DATA_ORIGIN=0x1000 -defsym DATA_LENGTH=0x1000 -T $srcdir/$subdir/memory_sym.t tmpdir/script.o"] {
 217     fail $testname
 218     untested "extract symbols"
 219 } else {
 220     check_script
 221     extract_symbol_test tmpdir/script "extract symbols"
 222 }
 223
 224 set test_script_list [lsort [glob $srcdir/$subdir/region-alias-*.t]]
 225
 226 foreach test_script $test_script_list {
 227     run_dump_test [string range $test_script 0 end-2]
 228 }
 229
 230 run_dump_test "align-with-input"
 231 run_dump_test "pr20302"
 232
 233 run_dump_test "segment-start" {{name (default)}}
 234 run_dump_test "segment-start" {{name (overridden)} \
 235                                {ld -Ttext-segment=0x10000000}}
 236
 237 set LDFLAGS $old_LDFLAGS