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