ld/testsuite/lib/ld-lib.exp

   1 #
   2 # default_ld_version
   3 #       extract and print the version number of ld
   4 #
   5 proc default_ld_version { ld } {
   6     global host_triplet
   7
   8     if { [which $ld] == 0 } then {
   9         perror "$ld does not exist"
  10         exit 1
  11     }
  12
  13     catch "exec $ld --version" tmp
  14     set tmp [prune_warnings $tmp]
  15     regexp "\[^\n\]* (cygnus-|)(\[-0-9.a-zA-Z-\]+)\[\r\n\].*" $tmp version cyg number
  16     if [info exists number] then {
  17         clone_output "$ld $number\n"
  18     }
  19 }
  20
  21 #
  22 # default_ld_relocate
  23 #       link an object using relocation
  24 #
  25 proc default_ld_relocate { ld target objects } {
  26     global HOSTING_EMU
  27     global host_triplet
  28
  29     if { [which $ld] == 0 } then {
  30         perror "$ld does not exist"
  31         return 0
  32     }
  33
  34     verbose -log "$ld $HOSTING_EMU -o $target -r $objects"
  35
  36     catch "exec $ld $HOSTING_EMU -o $target -r $objects" exec_output
  37     set exec_output [prune_warnings $exec_output]
  38     if [string match "" $exec_output] then {
  39         return 1
  40     } else {
  41         verbose -log "$exec_output"
  42         return 0
  43     }
  44 }
  45
  46 # Look for big-endian or little-endian switches in the multlib
  47 # options and translate these into a -EB or -EL switch.  Note
  48 # we cannot rely upon proc process_multilib_options to do this
  49 # for us because for some targets the compiler does not support
  50 # -EB/-EL but it does support -mbig-endian/-mlittle-endian, and
  51 # the site.exp file will include the switch "-mbig-endian"
  52 # (rather than "big-endian") which is not detected by proc
  53 # process_multilib_options.
  54
  55 proc big_or_little_endian {} {
  56
  57     if [board_info [target_info name] exists multilib_flags] {
  58         set tmp_flags " [board_info [target_info name] multilib_flags]";
  59
  60         foreach x $tmp_flags {
  61             case $x in {
  62                 {*big*endian eb EB} {
  63                     set flags " -EB"
  64                     return $flags
  65                 }
  66                 {*little*endian el EL} {
  67                     set flags " -EL"
  68                     return $flags
  69                 }
  70             }
  71         }
  72     }
  73
  74     set flags ""
  75     return $flags
  76 }
  77
  78 #
  79 # default_ld_link
  80 #       link a program using ld
  81 #
  82 proc default_ld_link { ld target objects } {
  83     global HOSTING_EMU
  84     global HOSTING_CRT0
  85     global HOSTING_LIBS
  86     global LIBS
  87     global host_triplet
  88     global link_output
  89
  90     set objs "$HOSTING_CRT0 $objects"
  91     set libs "$LIBS $HOSTING_LIBS"
  92
  93     if { [which $ld] == 0 } then {
  94         perror "$ld does not exist"
  95         return 0
  96     }
  97
  98     set flags [big_or_little_endian]
  99
 100     verbose -log "$ld $HOSTING_EMU $flags -o $target $objs $libs"
 101
 102     catch "exec $ld $HOSTING_EMU $flags -o $target $objs $libs" link_output
 103     set exec_output [prune_warnings $link_output]
 104     if [string match "" $link_output] then {
 105         return 1
 106     } else {
 107         verbose -log "$link_output"
 108         return 0
 109     }
 110 }
 111
 112 #
 113 # default_ld_simple_link
 114 #       link a program using ld, without including any libraries
 115 #
 116 proc default_ld_simple_link { ld target objects } {
 117     global host_triplet
 118     global link_output
 119
 120     if { [which $ld] == 0 } then {
 121         perror "$ld does not exist"
 122         return 0
 123     }
 124
 125     set flags [big_or_little_endian]
 126
 127     verbose -log "$ld $flags -o $target $objects"
 128
 129     catch "exec $ld $flags -o $target $objects" link_output
 130     set exec_output [prune_warnings $link_output]
 131
 132     # We don't care if we get a warning about a non-existent start
 133     # symbol, since the default linker script might use ENTRY.
 134     regsub -all "(^|\n)(\[^\n\]*: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
 135
 136     if [string match "" $exec_output] then {
 137         return 1
 138     } else {
 139         verbose -log "$exec_output"
 140         return 0
 141     }
 142 }
 143
 144 #
 145 # default_ld_compile
 146 #       compile an object using cc
 147 #
 148 proc default_ld_compile { cc source object } {
 149     global CFLAGS
 150     global srcdir
 151     global subdir
 152     global host_triplet
 153     global gcc_gas_flag
 154
 155     set cc_prog $cc
 156     if {[llength $cc_prog] > 1} then {
 157         set cc_prog [lindex $cc_prog 0]
 158     }
 159     if {[which $cc_prog] == 0} then {
 160         perror "$cc_prog does not exist"
 161         return 0
 162     }
 163
 164     catch "exec rm -f $object" exec_output
 165
 166     set flags "-I$srcdir/$subdir $CFLAGS"
 167
 168     # If we are compiling with gcc, we want to add gcc_gas_flag to
 169     # flags.  Rather than determine this in some complex way, we guess
 170     # based on the name of the compiler.
 171     if {[string match "*gcc*" $cc] || [string match "*++*" $cc]} then {
 172         set flags "$gcc_gas_flag $flags"
 173     }
 174
 175     if [board_info [target_info name] exists multilib_flags] {
 176         append flags " [board_info [target_info name] multilib_flags]";
 177     }
 178
 179     verbose -log "$cc $flags -c $source -o $object"
 180
 181     catch "exec $cc $flags -c $source -o $object" exec_output
 182     set exec_output [prune_warnings $exec_output]
 183     if [string match "" $exec_output] then {
 184         if {![file exists $object]} then {
 185             regexp ".*/(\[^/\]*)$" $source all dobj
 186             regsub "\\.c" $dobj ".o" realobj
 187             verbose "looking for $realobj"
 188             if {[file exists $realobj]} then {
 189                 verbose -log "mv $realobj $object"
 190                 catch "exec mv $realobj $object" exec_output
 191                 set exec_output [prune_warnings $exec_output]
 192                 if {![string match "" $exec_output]} then {
 193                     verbose -log "$exec_output"
 194                     perror "could not move $realobj to $object"
 195                     return 0
 196                 }
 197             } else {
 198                 perror "$object not found after compilation"
 199                 return 0
 200             }
 201         }
 202         return 1
 203     } else {
 204         verbose -log "$exec_output"
 205         perror "$source: compilation failed"
 206         return 0
 207     }
 208 }
 209
 210 #
 211 # default_ld_assemble
 212 #       assemble a file
 213 #
 214 proc default_ld_assemble { as source object } {
 215     global ASFLAGS
 216     global host_triplet
 217
 218     if {[which $as] == 0} then {
 219         perror "$as does not exist"
 220         return 0
 221     }
 222
 223     if ![info exists ASFLAGS] { set ASFLAGS "" }
 224
 225     set flags [big_or_little_endian]
 226
 227     verbose -log "$as $flags $ASFLAGS -o $object $source"
 228
 229     catch "exec $as $flags $ASFLAGS -o $object $source" exec_output
 230     set exec_output [prune_warnings $exec_output]
 231     if [string match "" $exec_output] then {
 232         return 1
 233     } else {
 234         verbose -log "$exec_output"
 235         perror "$source: assembly failed"
 236         return 0
 237     }
 238 }
 239
 240 #
 241 # default_ld_nm
 242 #       run nm on a file, putting the result in the array nm_output
 243 #
 244 proc default_ld_nm { nm object } {
 245     global NMFLAGS
 246     global nm_output
 247     global host_triplet
 248
 249     if {[which $nm] == 0} then {
 250         perror "$nm does not exist"
 251         return 0
 252     }
 253
 254     if {[info exists nm_output]} {
 255       unset nm_output
 256     }
 257
 258     if ![info exists NMFLAGS] { set NMFLAGS "" }
 259
 260     verbose -log "$nm $NMFLAGS $object >tmpdir/nm.out"
 261
 262     catch "exec $nm $NMFLAGS $object >tmpdir/nm.out" exec_output
 263     set exec_output [prune_warnings $exec_output]
 264     if [string match "" $exec_output] then {
 265         set file [open tmpdir/nm.out r]
 266         while { [gets $file line] != -1 } {
 267             verbose "$line" 2
 268             if [regexp "^(\[0-9a-fA-F\]+) \[a-zA-Z0-9\] (.+)$" $line whole value name] {
 269                 set name [string trimleft $name "_"]
 270                 verbose "Setting nm_output($name) to 0x$value" 2
 271                 set nm_output($name) 0x$value
 272             }
 273         }
 274         close $file
 275         return 1
 276     } else {
 277         verbose -log "$exec_output"
 278         perror "$object: nm failed"
 279         return 0
 280     }
 281 }
 282
 283 #
 284 # simple_diff
 285 #       compares two files line-by-line
 286 #       returns differences if exist
 287 #       returns null if file(s) cannot be opened
 288 #
 289 proc simple_diff { file_1 file_2 } {
 290     global target
 291
 292     set eof -1
 293     set differences 0
 294
 295     if [file exists $file_1] then {
 296         set file_a [open $file_1 r]
 297     } else {
 298         warning "$file_1 doesn't exist"
 299         return
 300     }
 301
 302     if [file exists $file_2] then {
 303         set file_b [open $file_2 r]
 304     } else {
 305         fail "$file_2 doesn't exist"
 306         return
 307     }
 308
 309     verbose "# Diff'ing: $file_1 $file_2\n" 2
 310
 311     while { [gets $file_a line] != $eof } {
 312         if [regexp "^#.*$" $line] then {
 313             continue
 314         } else {
 315             lappend list_a $line
 316         }
 317     }
 318     close $file_a
 319
 320     while { [gets $file_b line] != $eof } {
 321         if [regexp "^#.*$" $line] then {
 322             continue
 323         } else {
 324             lappend list_b $line
 325         }
 326     }
 327     close $file_b
 328
 329     for { set i 0 } { $i < [llength $list_a] } { incr i } {
 330         set line_a [lindex $list_a $i]
 331         set line_b [lindex $list_b $i]
 332
 333         verbose "\t$file_1: $i: $line_a\n" 3
 334         verbose "\t$file_2: $i: $line_b\n" 3
 335         if [string compare $line_a $line_b] then {
 336             verbose -log "\t$file_1: $i: $line_a\n"
 337             verbose -log "\t$file_2: $i: $line_b\n"
 338
 339             fail "Test: $target"
 340             return
 341         }
 342     }
 343
 344     if { [llength $list_a] != [llength $list_b] } {
 345         fail "Test: $target"
 346         return
 347     }
 348
 349     if $differences<1 then {
 350         pass "Test: $target"
 351     }
 352 }
 353
 354 # This definition is taken from an unreleased version of DejaGnu.  Once
 355 # that version gets released, and has been out in the world for a few
 356 # months at least, it may be safe to delete this copy.
 357 if ![string length [info proc prune_warnings]] {
 358     #
 359     # prune_warnings -- delete various system verbosities from TEXT
 360     #
 361     # An example is:
 362     # ld.so: warning: /usr/lib/libc.so.1.8.1 has older revision than expected 9
 363     #
 364     # Sites with particular verbose os's may wish to override this in site.exp.
 365     #
 366     proc prune_warnings { text } {
 367         # This is from sun4's.  Do it for all machines for now.
 368         # The "\\1" is to try to preserve a "\n" but only if necessary.
 369         regsub -all "(^|\n)(ld.so: warning:\[^\n\]*\n?)+" $text "\\1" text
 370
 371         # It might be tempting to get carried away and delete blank lines, etc.
 372         # Just delete *exactly* what we're ask to, and that's it.
 373         return $text
 374     }
 375 }