3 # extract and print the version number of ld
5 proc default_ld_version { ld } {
8 if { [which $ld] == 0 } then {
9 perror "$ld does not exist"
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"
23 # link an object using relocation
25 proc default_ld_relocate { ld target objects } {
29 if { [which $ld] == 0 } then {
30 perror "$ld does not exist"
34 verbose -log "$ld $HOSTING_EMU -o $target -r $objects"
36 catch "exec $ld $HOSTING_EMU -o $target -r $objects" exec_output
37 set exec_output [prune_warnings $exec_output]
38 if [string match "" $exec_output] then {
41 verbose -log "$exec_output"
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.
55 proc big_or_little_endian {} {
57 if [board_info [target_info name] exists multilib_flags] {
58 set tmp_flags " [board_info [target_info name] multilib_flags]";
60 foreach x $tmp_flags {
66 {*little*endian el EL} {
80 # link a program using ld
82 proc default_ld_link { ld target objects } {
89 set objs "$HOSTING_CRT0 $objects"
90 set libs "$LIBS $HOSTING_LIBS"
92 if { [which $ld] == 0 } then {
93 perror "$ld does not exist"
97 set flags [big_or_little_endian]
99 verbose -log "$ld $HOSTING_EMU $flags -o $target $objs $libs"
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 "" $exec_output] then {
106 verbose -log "$exec_output"
112 # default_ld_simple_link
113 # link a program using ld, without including any libraries
115 proc default_ld_simple_link { ld target objects } {
118 if { [which $ld] == 0 } then {
119 perror "$ld does not exist"
123 set flags [big_or_little_endian]
125 verbose -log "$ld $flags -o $target $objects"
127 catch "exec $ld $flags -o $target $objects" exec_output
128 set exec_output [prune_warnings $exec_output]
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
134 if [string match "" $exec_output] then {
137 verbose -log "$exec_output"
144 # compile an object using cc
146 proc default_ld_compile { cc source object } {
154 if {[llength $cc_prog] > 1} then {
155 set cc_prog [lindex $cc_prog 0]
157 if {[which $cc_prog] == 0} then {
158 perror "$cc_prog does not exist"
162 catch "exec rm -f $object" exec_output
164 set flags "-I$srcdir/$subdir $CFLAGS"
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 $flags"
173 if [board_info [target_info name] exists multilib_flags] {
174 append flags " [board_info [target_info name] multilib_flags]";
177 verbose -log "$cc $flags -c $source -o $object"
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 $object"
196 perror "$object not found after compilation"
202 verbose -log "$exec_output"
203 perror "$source: compilation failed"
209 # default_ld_assemble
212 proc default_ld_assemble { as source object } {
216 if {[which $as] == 0} then {
217 perror "$as does not exist"
221 if ![info exists ASFLAGS] { set ASFLAGS "" }
223 set flags [big_or_little_endian]
225 verbose -log "$as $flags $ASFLAGS -o $object $source"
227 catch "exec $as $flags $ASFLAGS -o $object $source" exec_output
228 set exec_output [prune_warnings $exec_output]
229 if [string match "" $exec_output] then {
232 verbose -log "$exec_output"
233 perror "$source: assembly failed"
240 # run nm on a file, putting the result in the array nm_output
242 proc default_ld_nm { nm object } {
247 if {[which $nm] == 0} then {
248 perror "$nm does not exist"
252 if {[info exists nm_output]} {
256 if ![info exists NMFLAGS] { set NMFLAGS "" }
258 verbose -log "$nm $NMFLAGS $object >tmpdir/nm.out"
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 } {
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$value
275 verbose -log "$exec_output"
276 perror "$object: nm failed"
283 # compares two files line-by-line
284 # returns differences if exist
285 # returns null if file(s) cannot be opened
287 proc simple_diff { file_1 file_2 } {
293 if [file exists $file_1] then {
294 set file_a [open $file_1 r]
296 warning "$file_1 doesn't exist"
300 if [file exists $file_2] then {
301 set file_b [open $file_2 r]
303 fail "$file_2 doesn't exist"
307 verbose "# Diff'ing: $file_1 $file_2\n" 2
309 while { [gets $file_a line] != $eof } {
310 if [regexp "^#.*$" $line] then {
318 while { [gets $file_b line] != $eof } {
319 if [regexp "^#.*$" $line] then {
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 $i]
331 verbose "\t$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"
342 if { [llength $list_a] != [llength $list_b] } {
347 if $differences<1 then {
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]] {
357 # prune_warnings -- delete various system verbosities from TEXT
360 # ld.so: warning: /usr/lib/libc.so.1.8.1 has older revision than expected 9
362 # Sites with particular verbose os's may wish to override this in site.exp.
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
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.