1 # Test linking directly to S-records.
2 # By Ian Lance Taylor, Cygnus Support.
3 # Copyright 1999, 2000, 2001, 2002, 2003, 2006, 2007
4 # Free Software Foundation, Inc.
6 # This file is part of the GNU Binutils.
8 # This program is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 3 of the License, or
11 # (at your option) any later version.
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write to the Free Software
20 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
23 # Get the offset from an S-record line to the start of the data.
26 if [string match "S1*" $l] {
28 } else { if [string match "S2*" $l] {
30 } else { if [string match "S3*" $l] {
37 # See if an S-record line contains only zero data.
39 proc srec_zero { l } {
40 if [string match "S\[0789\]*" $l] {
44 # Strip the address and checksum.
45 if [string match "S\[123\]*" $l] {
46 set l [string range $l [srec_off $l] [expr [string length $l] - 3]]
51 # The rest must be zero.
52 return [string match "" [string trim $l "0"]]
55 # Get the address of an S-record line.
57 proc srec_addr { l } {
58 if [string match "S\[123\]*" $l] {
59 set addr [string range $l 4 [expr [srec_off $l] - 1]]
67 # Get the number of data bytes in an S-record line.
70 if ![string match "S\[123\]*" $l] {
74 return [expr "0x[string range $l 2 3]" - ([srec_off $l] - 4) / 2 - 1]
77 # Extract bytes from an S-record line.
79 proc srec_extract { l start len } {
81 set rlen [srec_len $l]
82 set stop [expr $start + $len]
83 if { $stop > $rlen } {
86 set start [expr $start * 2 + $off]
87 set stop [expr $stop * 2 + $off - 1]
88 return [string range $l $start $stop]
91 # See if a range of bytes in an S-record line is all zeroes.
93 proc srec_zero_range { l start len } {
94 return [string match "" [string trim [srec_extract $l $start $len] "0"]]
97 # Trim an S-record line such that the specified number of bytes remain
100 proc srec_trim { l leave } {
101 set off [srec_off $l]
102 set addr [srec_addr $l]
103 set len [srec_len $l]
105 if { $leave >= $len } {
109 set s1 [string range $l 0 1]
110 set s2 [format "%02x" [expr ($off - 4) / 2 + $leave + 1]]
111 set s3 [format "%0[expr $off - 4]x" [expr $addr + $len - $leave]]
112 set s4 [string range $l [expr [string length $l] - ($leave * 2) - 2] end]
113 set s "${s1}${s2}${s3}${s4}"
115 verbose "srec_trim { '$l' $leave } returning '$s'" 2
120 # Report failure when comparing S-record lines
122 proc srec_compare_fail { which l1 l2 } {
123 send_log "comparison failure $which:\n$l1\n$l2\n"
124 verbose "comparison failure $which:\n$l1\n$l2"
127 # Compare S-record files. We don't want to fuss about things like
128 # extra zeroes. Note that BFD always sorts S-records by address.
130 proc srec_compare { f1 f2 } {
134 while { $e1 != -1 } {
135 set l1 [string trimright $l1 "\r\n"]
136 set l2 [string trimright $l2 "\r\n"]
138 # If l1 contains data, it must be zero.
139 if ![srec_zero $l1] {
140 send_log "data after EOF: $l1\n"
141 verbose "data after EOF: $l1"
144 } else { if { [string compare $l1 $l2] == 0 } {
147 } else { if { [srec_zero $l1] } {
149 } else { if { [srec_zero $l2] } {
152 # The strings are not the same, and neither is all zeroes.
153 set a1 [srec_addr $l1]
154 set n1 [srec_len $l1]
155 set a2 [srec_addr $l2]
156 set n2 [srec_len $l2]
158 if { $a1 < $a2 && ![srec_zero_range $l1 0 [expr $a2 - $a1]] } {
159 verbose "$a1 $a2 [srec_extract $l1 0 [expr $a2 - $a1]]" 2
160 srec_compare_fail 1 $l1 $l2
163 if { $a2 < $a1 && ![srec_zero_range $l2 0 [expr $a1 - $a2]] } {
164 srec_compare_fail 2 $l1 $l2
168 # Here we know that any initial data in both lines is
169 # zero. Now make sure that any overlapping data matches.
171 set os1 [expr $a2 - $a1]
175 set os2 [expr $a1 - $a2]
177 if { $a1 + $n1 < $a2 + $n2 } {
178 set ol [expr $n1 - $os1]
180 set ol [expr $n2 - $os2]
183 set x1 [srec_extract $l1 $os1 $ol]
184 set x2 [srec_extract $l2 $os2 $ol]
185 if { [string compare $x1 $x2] != 0 } {
186 verbose "$os1 $ol $x1" 2
187 verbose "$os2 $ol $x2" 2
188 srec_compare_fail 3 $l1 $l2
192 # These strings match. Trim the data from the larger
193 # string, read a new copy of the smaller string, and
195 if { $a1 + $n1 < $a2 + $n2 } {
196 set l2 [srec_trim $l2 [expr ($a2 + $n2) - ($a1 + $n1)]]
198 } else { if { $a1 + $n1 > $a2 + $n2 } {
199 set l1 [srec_trim $l1 [expr ($a1 + $n1) - ($a2 + $n2)]]
208 # We've reached the end of the first file. The remainder of the
209 # second file must contain only zeroes.
210 while { $e2 != -1 } {
211 set l2 [string trimright $l2 "\r\n"]
212 if ![srec_zero $l2] {
213 send_log "data after EOF: $l2\n"
214 verbose "data after EOF: $l2"
223 # Link twice, objcopy, and compare
225 proc run_srec_test { test objs } {
228 global sizeof_headers
231 # Tell the ELF linker to not do anything clever with .eh_frame.
232 set flags "--traditional-format"
234 # If the linker script uses SIZEOF_HEADERS, use a -Ttext argument
235 # to force both the normal link and the S-record link to be put in
236 # the same place. We don't always use -Ttext because it interacts
239 if { $sizeof_headers } {
240 set flags "$flags -Ttext 0x1000"
243 if [istarget sh64*-*-elf] {
244 # This is what gcc passes to ld by default.
245 set flags "-mshelf32"
246 # SH64 targets cannot convert format in the linker
247 # using the -oformat command line switch.
248 setup_xfail "sh64*-*-*"
251 if {[istarget arm*-*-*] || \
252 [istarget strongarm*-*-*] || \
253 [istarget xscale*-*-*] || \
254 [istarget thumb-*-*] } {
256 # ARM targets call __gccmain
257 set flags "$flags --defsym __gccmain=0"
259 # ARM targets cannot convert format in the linker
260 # using the --oformat command line switch
261 setup_xfail "*arm*-*-*"
262 setup_xfail "xscale-*-*"
263 setup_xfail "thumb-*-*"
266 # PowerPC EABI code calls __eabi.
267 if [istarget powerpc*-*-eabi*] {
268 set flags "$flags --defsym __eabi=0"
271 # mn10200 code calls __truncsipsi2_d0_d2.
272 if {[istarget mn10200*-*-*]} then {
273 set flags "$flags --defsym __truncsipsi2_d0_d2=0"
276 # m6811/m6812 code has references to soft registers.
277 if {[istarget m6811-*-*] || [istarget m6812-*-*]} {
278 set flags "$flags --defsym _.frame=0 --defsym _.d1=0 --defsym _.d2=0"
279 set flags "$flags --defsym _.d3=0 --defsym _.d4=0"
280 set flags "$flags --defsym _.tmp=0 --defsym _.xy=0 --defsym _.z=0"
283 # V850 targets need libgcc.a
284 if [istarget v850*-*-elf] {
285 set objs "$objs -L ../gcc -lgcc"
288 # Xtensa ELF targets relax by default; S-Record linker does not
289 if [istarget xtensa*-*-*] {
290 set flags "$flags -no-relax"
293 # Some OpenBSD targets have ProPolice and reference __guard and
294 # __stack_smash_handler.
295 if [istarget *-*-openbsd*] {
296 set flags "$flags --defsym __guard=0"
297 set flags "$flags --defsym __stack_smash_handler=0"
300 if { ![ld_simple_link $ld tmpdir/sr1 "$flags $objs"] \
301 || ![ld_simple_link $ld tmpdir/sr2.sr "$flags --oformat srec $objs"] } {
306 send_log "$objcopy -O srec tmpdir/sr1 tmpdir/sr1.sr\n"
307 verbose "$objcopy -O srec tmpdir/sr1 tmpdir/sr1.sr"
308 catch "exec $objcopy -O srec tmpdir/sr1 tmpdir/sr1.sr" exec_output
309 set exec_output [prune_warnings $exec_output]
310 if ![string match "" $exec_output] {
311 send_log "$exec_output\n"
312 verbose "$exec_output"
317 set f1 [open tmpdir/sr1.sr r]
318 set f2 [open tmpdir/sr2.sr r]
319 if [srec_compare $f1 $f2] {
328 set test1 "S-records"
329 set test2 "S-records with constructors"
331 # See whether the default linker script uses SIZEOF_HEADERS.
332 catch "exec $ld --verbose" exec_output
333 set sizeof_headers [string match "*SIZEOF_HEADERS*" $exec_output]
335 # First test linking a C program. We don't require any libraries. We
336 # link it normally, and objcopy to the S-record format, and then link
337 # directly to the S-record format, and require that the two files
338 # contain the same data.
340 if { [which $CC] == 0 } {
346 if { ![ld_compile $CC $srcdir/$subdir/sr1.c tmpdir/sr1.o] \
347 || ![ld_compile $CC $srcdir/$subdir/sr2.c tmpdir/sr2.o] } {
353 # The i386-aout target is confused: the linker does not put the
354 # sections where objdump finds them. I don't know which is wrong.
355 setup_xfail "i*86-*-aout*"
357 # These tests fail on the native MIPS ELF targets because the GP value
358 # in the .reginfo section is not updated when the S-record version is
359 # written out. The mips-elf target itself does not use a .reginfo section.
360 setup_xfail "mips*-*-irix5*" "mips*-*-irix6*" "mips*-*-linux*"
362 # The S-record linker doesn't do the magic TOC handling that XCOFF
364 setup_xfail "*-*-aix*" "*-*-xcoff*"
366 # The S-record linker doesn't build ARM/Thumb stubs.
367 setup_xfail "arm-*-coff"
368 setup_xfail "strongarm*-*-coff"
369 setup_xfail "xscale*-*-coff"
370 setup_xfail "arm-*-pe*"
371 # setup_xfail "arm-*elf*"
372 setup_xfail "thumb-*-coff*"
373 setup_xfail "thumb-*-pe*"
374 setup_xfail "thumb-*-elf*"
375 setup_xfail "arm*-*-linux*"
377 # The S-record linker doesn't build special EABI sections.
378 # setup_xfail "powerpc*-*-eabi*"
380 # The S-record linker doesn't include the .{zda} sections.
381 setup_xfail "v850*-*-elf"
383 # The S-record linker doesn't handle Alpha Elf relaxation.
384 setup_xfail "alpha*-*-elf*" "alpha*-*-linux-*" "alpha*-*-gnu*"
385 setup_xfail "alpha*-*-netbsd*"
387 # The S-record linker hasn't any hope of coping with HPPA relocs.
388 setup_xfail "hppa*-*-*"
390 # The S-record linker doesn't handle IA64 Elf relaxation.
391 setup_xfail "ia64-*-*"
393 # The S-record linker doesn't support the special PE headers - the PE
394 # emulation tries to write pe-specific information to the PE headers
395 # in the output bfd, but it's not a PE bfd (it's an srec bfd)
396 setup_xfail "*-*-cygwin*" "*-*-mingw*" "*-*-pe*" "*-*-winnt*"
397 setup_xfail "score-*-*"
399 run_srec_test $test1 "tmpdir/sr1.o tmpdir/sr2.o"
401 # Now try linking a C++ program with global constructors and
402 # destructors. Note that since we are not linking against any
403 # libraries, this program won't actually work or anything.
405 if { [which $CXX] == 0 } {
410 if ![ld_compile "$CXX $CXXFLAGS -fno-exceptions" $srcdir/$subdir/sr3.cc tmpdir/sr3.o] {
416 setup_xfail "i*86-*-aout*"
417 setup_xfail "mips*-*-irix5*" "mips*-*-irix6*" "mips*-*-linux*"
418 setup_xfail "*-*-aix*" "*-*-xcoff*"
419 setup_xfail "arm*-*-*"
420 setup_xfail "strongarm*-*-*"
421 setup_xfail "thumb-*-*"
422 setup_xfail "powerpc*-*-eabi*"
423 setup_xfail "v850*-*-elf"
424 setup_xfail "alpha*-*-elf*" "alpha*-*-linux-*" "alpha*-*-gnu*"
425 setup_xfail "alpha*-*-netbsd*"
426 setup_xfail "hppa*-*-*"
427 setup_xfail "ia64-*-*"
428 setup_xfail "*-*-cygwin*" "*-*-mingw*" "*-*-pe*" "*-*-winnt*"
429 setup_xfail "score-*-*"
431 run_srec_test $test2 "tmpdir/sr3.o"