373 lines
8.9 KiB
Text
373 lines
8.9 KiB
Text
#
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# default_ld_version
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# extract and print the version number of ld
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#
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proc default_ld_version { ld } {
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global host_triplet
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if { [which $ld] == 0 } then {
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perror "$ld does not exist"
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exit 1
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}
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catch "exec $ld --version" tmp
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set tmp [prune_warnings $tmp]
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regexp "\[^\n\]* (cygnus-|)(\[-0-9.a-zA-Z-\]+)\[\r\n\].*" $tmp version cyg number
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if [info exists number] then {
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clone_output "$ld $number\n"
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}
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}
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#
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# default_ld_relocate
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# link an object using relocation
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#
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proc default_ld_relocate { ld target objects } {
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global HOSTING_EMU
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global host_triplet
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if { [which $ld] == 0 } then {
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perror "$ld does not exist"
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return 0
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}
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verbose -log "$ld $HOSTING_EMU -o $target -r $objects"
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catch "exec $ld $HOSTING_EMU -o $target -r $objects" exec_output
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set exec_output [prune_warnings $exec_output]
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if [string match "" $exec_output] then {
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return 1
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} else {
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verbose -log "$exec_output"
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return 0
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}
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}
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# Look for big-endian or little-endian switches in the multlib
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# options and translate these into a -EB or -EL switch. Note
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# we cannot rely upon proc process_multilib_options to do this
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# for us because for some targets the compiler does not support
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# -EB/-EL but it does support -mbig-endian/-mlittle-endian, and
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# the site.exp file will include the switch "-mbig-endian"
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# (rather than "big-endian") which is not detected by proc
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# process_multilib_options.
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proc big_or_little_endian {} {
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if [board_info [target_info name] exists multilib_flags] {
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set tmp_flags " [board_info [target_info name] multilib_flags]";
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foreach x $tmp_flags {
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case $x in {
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{*big*endian eb EB} {
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set flags " -EB"
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return $flags
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}
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{*little*endian el EL} {
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set flags " -EL"
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return $flags
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}
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}
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}
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}
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set flags ""
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return $flags
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}
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#
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# default_ld_link
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# link a program using ld
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#
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proc default_ld_link { ld target objects } {
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global HOSTING_EMU
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global HOSTING_CRT0
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global HOSTING_LIBS
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global LIBS
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global host_triplet
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set objs "$HOSTING_CRT0 $objects"
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set libs "$LIBS $HOSTING_LIBS"
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if { [which $ld] == 0 } then {
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perror "$ld does not exist"
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return 0
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}
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set flags [big_or_little_endian]
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verbose -log "$ld $HOSTING_EMU $flags -o $target $objs $libs"
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catch "exec $ld $HOSTING_EMU $flags -o $target $objs $libs" exec_output
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set exec_output [prune_warnings $exec_output]
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if [string match "" $exec_output] then {
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return 1
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} else {
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verbose -log "$exec_output"
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return 0
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}
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}
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#
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# default_ld_simple_link
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# link a program using ld, without including any libraries
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#
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proc default_ld_simple_link { ld target objects } {
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global host_triplet
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if { [which $ld] == 0 } then {
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perror "$ld does not exist"
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return 0
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}
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set flags [big_or_little_endian]
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verbose -log "$ld $flags -o $target $objects"
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catch "exec $ld $flags -o $target $objects" exec_output
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set exec_output [prune_warnings $exec_output]
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# We don't care if we get a warning about a non-existent start
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# symbol, since the default linker script might use ENTRY.
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regsub -all "(^|\n)(\[^\n\]*: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
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if [string match "" $exec_output] then {
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return 1
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} else {
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verbose -log "$exec_output"
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return 0
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}
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}
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#
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# default_ld_compile
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# compile an object using cc
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#
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proc default_ld_compile { cc source object } {
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global CFLAGS
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global srcdir
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global subdir
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global host_triplet
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global gcc_gas_flag
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set cc_prog $cc
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if {[llength $cc_prog] > 1} then {
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set cc_prog [lindex $cc_prog 0]
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}
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if {[which $cc_prog] == 0} then {
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perror "$cc_prog does not exist"
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return 0
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}
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catch "exec rm -f $object" exec_output
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set flags "-I$srcdir/$subdir $CFLAGS"
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# If we are compiling with gcc, we want to add gcc_gas_flag to
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# flags. Rather than determine this in some complex way, we guess
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# based on the name of the compiler.
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if {[string match "*gcc*" $cc] || [string match "*++*" $cc]} then {
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set flags "$gcc_gas_flag $flags"
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}
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if [board_info [target_info name] exists multilib_flags] {
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append flags " [board_info [target_info name] multilib_flags]";
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}
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verbose -log "$cc $flags -c $source -o $object"
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catch "exec $cc $flags -c $source -o $object" exec_output
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set exec_output [prune_warnings $exec_output]
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if [string match "" $exec_output] then {
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if {![file exists $object]} then {
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regexp ".*/(\[^/\]*)$" $source all dobj
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regsub "\\.c" $dobj ".o" realobj
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verbose "looking for $realobj"
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if {[file exists $realobj]} then {
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verbose -log "mv $realobj $object"
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catch "exec mv $realobj $object" exec_output
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set exec_output [prune_warnings $exec_output]
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if {![string match "" $exec_output]} then {
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verbose -log "$exec_output"
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perror "could not move $realobj to $object"
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return 0
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}
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} else {
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perror "$object not found after compilation"
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return 0
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}
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}
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return 1
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} else {
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verbose -log "$exec_output"
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perror "$source: compilation failed"
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return 0
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}
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}
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#
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# default_ld_assemble
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# assemble a file
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#
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proc default_ld_assemble { as source object } {
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global ASFLAGS
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global host_triplet
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if {[which $as] == 0} then {
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perror "$as does not exist"
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return 0
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}
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if ![info exists ASFLAGS] { set ASFLAGS "" }
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set flags [big_or_little_endian]
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verbose -log "$as $flags $ASFLAGS -o $object $source"
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catch "exec $as $flags $ASFLAGS -o $object $source" exec_output
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set exec_output [prune_warnings $exec_output]
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if [string match "" $exec_output] then {
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return 1
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} else {
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verbose -log "$exec_output"
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perror "$source: assembly failed"
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return 0
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}
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}
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#
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# default_ld_nm
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# run nm on a file, putting the result in the array nm_output
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#
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proc default_ld_nm { nm object } {
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global NMFLAGS
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global nm_output
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global host_triplet
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if {[which $nm] == 0} then {
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perror "$nm does not exist"
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return 0
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}
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if {[info exists nm_output]} {
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unset nm_output
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}
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if ![info exists NMFLAGS] { set NMFLAGS "" }
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verbose -log "$nm $NMFLAGS $object >tmpdir/nm.out"
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catch "exec $nm $NMFLAGS $object >tmpdir/nm.out" exec_output
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set exec_output [prune_warnings $exec_output]
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if [string match "" $exec_output] then {
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set file [open tmpdir/nm.out r]
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while { [gets $file line] != -1 } {
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verbose "$line" 2
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if [regexp "^(\[0-9a-fA-F\]+) \[a-zA-Z0-9\] (.+)$" $line whole value name] {
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set name [string trimleft $name "_"]
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verbose "Setting nm_output($name) to 0x$value" 2
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set nm_output($name) 0x$value
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}
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}
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close $file
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return 1
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} else {
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verbose -log "$exec_output"
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perror "$object: nm failed"
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return 0
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}
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}
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#
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# simple_diff
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# compares two files line-by-line
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# returns differences if exist
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# returns null if file(s) cannot be opened
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#
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proc simple_diff { file_1 file_2 } {
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global target
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set eof -1
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set differences 0
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if [file exists $file_1] then {
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set file_a [open $file_1 r]
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} else {
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warning "$file_1 doesn't exist"
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return
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}
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if [file exists $file_2] then {
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set file_b [open $file_2 r]
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} else {
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fail "$file_2 doesn't exist"
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return
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}
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verbose "# Diff'ing: $file_1 $file_2\n" 2
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while { [gets $file_a line] != $eof } {
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if [regexp "^#.*$" $line] then {
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continue
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} else {
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lappend list_a $line
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}
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}
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close $file_a
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while { [gets $file_b line] != $eof } {
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if [regexp "^#.*$" $line] then {
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continue
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} else {
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lappend list_b $line
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}
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}
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close $file_b
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for { set i 0 } { $i < [llength $list_a] } { incr i } {
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set line_a [lindex $list_a $i]
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set line_b [lindex $list_b $i]
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verbose "\t$file_1: $i: $line_a\n" 3
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verbose "\t$file_2: $i: $line_b\n" 3
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if [string compare $line_a $line_b] then {
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verbose -log "\t$file_1: $i: $line_a\n"
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verbose -log "\t$file_2: $i: $line_b\n"
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fail "Test: $target"
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return
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}
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}
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if { [llength $list_a] != [llength $list_b] } {
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fail "Test: $target"
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return
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}
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if $differences<1 then {
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pass "Test: $target"
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}
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}
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# This definition is taken from an unreleased version of DejaGnu. Once
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# that version gets released, and has been out in the world for a few
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# months at least, it may be safe to delete this copy.
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if ![string length [info proc prune_warnings]] {
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#
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# prune_warnings -- delete various system verbosities from TEXT
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#
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# An example is:
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# ld.so: warning: /usr/lib/libc.so.1.8.1 has older revision than expected 9
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#
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# Sites with particular verbose os's may wish to override this in site.exp.
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#
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proc prune_warnings { text } {
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# This is from sun4's. Do it for all machines for now.
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# The "\\1" is to try to preserve a "\n" but only if necessary.
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regsub -all "(^|\n)(ld.so: warning:\[^\n\]*\n?)+" $text "\\1" text
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# It might be tempting to get carried away and delete blank lines, etc.
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# Just delete *exactly* what we're ask to, and that's it.
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return $text
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}
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}
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